Subject
entries
A1.
State and Law. Jurisprudence
À5.
Informatics/Computer Science
B1.
Mathematics. Mechanics. Physics. Cybernetics
B4. Geography. Cartography.
Astronomy
B5. Other Natural and Exact Sciences
C. TECHNICAL AND APPLIED SCIENCES. SECTORS OF ECONOMY
C2. Electrical Engineering.
Electronics. Radio Engineering. Communications
C3. Automation & Telemetry.
Computer Engineering
C4. Mining. Metallurgy.
Chemical Industry
C5. Mechanical
Engineering. Instrument-making
C8. Construction. Architecture
C9. Agriculture and Forestry.
Fishery
C10. Water Industry.
Melioration
C11. Foreign and Domestic
Trade. Tourism
C13. Medicine. Public
Healthcare
D1. Organization and
Management
D2. Environmental Protection.
Ecology
D3. Statistics
D4. Other Intersectoral
Problems
A1. State and Law.
Jurisprudence
10.A1.1. Conception of Georgian political and legal doctrine. /K. Pridonashvili/. Law and Economics. – 2011. – #2. – pp. 3-13. – geo.; abs.: rus., eng.
The work sets tasks and ways of settling
modern national values. The author tries to determine the main principal
directions for developing the Georgian ideology and analyzes tendencies
observed in the Western civilization and their connection with the Georgian
reality, taking into consideration their economic, socio-demographic and
humanitarian aspects.
Auth.
10.A1.2. Institute of jurors in Georgian criminal law (theoretical
aspects).
/I. Basilashvili/. Law and Economics. – 2011. – #2. – pp. 14-23. – geo.; abs.:
rus., eng.
This article deals with introduction of the
institute of jurors (lay judges) in
Auth.
10.A1.3. National
issue according to modern civil society. /K. Pridonashvili/. Law and Economics.
– 2011. – #2. – pp. 24-32. – geo.; abs.: rus., eng.
The present work discusses the national problem in
civil society. The author gives an overview of political and legal tendencies in
Europian and civilized environment which have a qualitative impact on the civil
society formation process, where self-cosciousness and individuality are
apprehended in a new way. The author considers that all citizens of
Auth.
10.A1.4. Fields of competence of the public defender in
In a political and legal system of the Public
Defender it is of importance that together with independence the Public
Defender would have the corresponding authority in order to appropriately
respond so violations of law. Given that democratic institutions and values are
still rudimentary in Georgia, especially “parliamentarism”, which is directly
associated with the institute of Ombudsman, the strength of the Public
Defender’s Office for our country is of more importance than for developed
western democracies. The article aims to review and analyze fields and
competence of the Ombudsmen in
Auth.
10.A1.5.
Constitutional law in the system of division of state power in Georgia. /K. Pridonashvili/. Law and Economics.
– 2012. – #3. – pp. 4-12. – geo.; abs.: rus., eng.
The functional importance of the
constitutional law in the system of division of state power in
Auth.
10.A1.6. Ensuring
principles of democratic regime and constitutional mechanisms. /K. Pridonashvili/. Law and Economics.
– 2012. – #3. – pp. 13-33. – geo.; abs.: rus., eng.
The author gives a general review of main
provisions, values and principles of constitutional science, the existence and
consideration of which ensures effective functioning of a democratic process in
the course of formation of political and legal system. The author pays
particular attention to the following issues: the principles of division,
mutual control and balancing of government, as well as the principles of
subsidization, functional importance of the constitutional law in the
divisional system of powers, the essence of self-government in the country’s
political and legal system, the continuity and feedback of the government, the
normative and guiding purpose of the constitutional preamble, as well as balancing
the authorities of the Commander-in-Chief by the example of several countries.
Auth.
10.A1.7. On
religious and mythological bases of the
customary law. /M. Chikhradze/.
Law and Economics.
– 2012. – #3. – pp. 55-66. – geo.; abs.: rus., eng.
In the customary law regulations, clearly sseen
is the world outlook on which they are based. The archaic
society used to draw a clear line between members of the society – natives and
aliens. The alien was by all means considered to be a foe, as the opposite notion
of the native. Transformation into a native by means of a rite served as the
precondition for reconciliation with the enemy, and/or manifestation of
benevolence with regard to the enemy. Conduct of a formal rite gave rise to a
relevant obligation, indicating that law in the archaic society was based not
on high morality and the corresponding feeling of justice, but on formal
obligations elaborated based on the mythological world outlook.
Auth.
10.A1.8. Some problems of affirmative law. /S. Papiashvili/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 98-104. – geo.; abs.: geo., eng., rus.
In the work, based on a critical
analysis of individual views and evidence established by active criminal procedure
code, the concept of affirmative law, its essence and significance, types of
evidence and their classification are newly established. The fallacy of
definition of the term of “indirect testimony” given in Article 76 of the
Criminal Procedure Code, ignoring a possibility of establishment of the
objective truth and person’s guilt under a “reasoned suspicion” in a case tried
in court are grounded. The author also thinks it incorrect to equate the notion
of “evidence” with that of “proof”. To dissociate these two different notions,
their definition, essence and meaning are given.
Auth.
10.A1.9. Criteria of appropriateness of using deprivation of liberty in criminal
proceedings. /L. Papiashvili/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 105-118. – geo.; abs.: geo., eng., rus.
Attention is focused on the
criteria and prerequisites of selecting measures of restraint, as well as the
difficulties in connection with practical application and justification of the
provisions established in the Georgian Criminal Code, such, for example, as the
threat of fleeing, interference with the administration of justice, etc. In
terms of review and monitoring of the measures of restraint used by the court
regarding the matter of equality of the parties, the causes of high rates of
using detention and other issues are discussed. Considered are the requirements
to and preconditions of using the measures of restraint under the new Georgian
Criminal Code and an analysis of the judgments delivered by the European Court
of Human Rights against Georgia is given; also considered are the most
important decisions made by the Constitutional Courts of Georgia, Germany and
Spain, and the U.S. Supreme Court, the practices of the Georgian general courts
and their compliance with the requirements established by the Georgian Criminal
Code and international obligations. Concrete recommendations on further
improvement of the criminal procedure legislation are presented.
Auth.
10.A1.10. Drug business and the main
tendencies of its development. /M. Gudavadze/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 129-132. – geo.; abs.: geo., eng., rus.
In combating drug addiction, in addition to socio-economic methods,
measures of legal character have great value. The existing tendencies of
development of a world drug situation allow concluding that in spite of the
great efforts of many world countries against the scales of drug addiction and
use of drugs, no cardinal changes are noticeable. The firm political will
expressed on the part of government authorities for a straight-out struggle
against drugs is only half of the work.
Auth.
10.A1.11. Problems of transfer
of the subject of mortgage to the creditor’s possesion. /V. Khasia/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 133-139. – geo.; abs.: geo., eng., rus.
The article is dedicated to the definition of
the regulation governing transfer of a subject of mortgage to the creditor’s
possession established by the Supreme Court. Unfortunately, the Supreme Court
limited itself only to a general definition of the regulation and failed to
corroborate it by any regulation defining method. In order to define the
problem this paper discusses political, formal, material and legal aspects of
the given and alternative definitions as well as gives the argued viewpoint on
the basis of system-teleological and historical – comparative analysis
different from that of the Supreme Court.
Auth.
10.A1.12. Some aspects of International Environmental Law. /A. Akhvlediani, A.
Gogoladze, T. Akhvlediani/. Hydroengineering. – 2012. – #1-2(11-12). – pp. 84-99. – geo.; abs.: geo., eng., rus.
The major legal documents adopted in the
sphere of international environmental law are considered. The importance of the
European Court of Human Rights’ practice is noted, which during almost its
semi-centennial existence has approved many important decisions in the sphere
of protection of human rights as environmental rights. The numerous
agreements and conventions adopted by UN having great influence on the
development of international environmental law and its further perfection are
also considered. Some legal acts and other important juridical problems
connected with the protection of flora and fauna are presented.
Auth.
10.A1.13. Paradigms and dilemmas of politics and economy of
The process of political and economic
formation of post-Soviet
Auth.
10.A2.1. Official unemployment statistics and real situation in
Unemployment is an acute
problem for the population of
Auth.
10.A3.1. Advertising and
methods of evaluation of its economic effectiveness. /N.
Kaishauri/. Bulletin of the Academy of Agricultural
Sciences of
Advertising is
mentioned as a technical activity directed at familiarizing the consumer with
the product merits, also such issues as product supply, its appeal, making the
consumer buy it and its effectiveness is of great practical importance under
the present-day complicated marketing conditions. Methods of evaluation of
advertising effectiveness are given.
Auth.
10.A3.2. The role of planning, forecasting
and programming in the system of territorial regulation of economy. /N. Grdzelishvili/. Law and Economics.
– 2011. – #2. – pp. 62-70. – geo.; abs.: rus., eng.
The article deals with the problems of planning and forecasting in the
national economy regulation system. The importance of regional planning, the necessity of the
national and regional planning, the regional program and forecast are
considered. Functions and tasks
of the national and regional planning under modern conditions are reviewed.
Auth.
10.A3.3. Monitoring of
regional situations and problems. /N.Grdzelishvili/. Law and Economics.
– 2012. – #3. – pp. 67-78. – geo.; abs.: rus., eng.
The paper discusses monitoring of the regional
situations and problems. The subject and objectives, types, problems and
methods of monitoring as well as peculiarities of regional monitoring are
discussed.
Auth.
10.A3.4. Problematic
issues of a single global currency. /I. Chiladze/. Accounting. – 2012. – #4. – pp. 34-38.
– geo.; abs.: geo., eng.
The article reviews a difference between definitions
of the “world (global) money” and the “single global currency”. The money is
the unit of invisible common value which is created as a result of reasonable
and natural contribution (of total production) through efforts.
Currency (coins, notes) is a quantity measure of this unit with invisibly
existed value or actual money, its symbol. The world money will be created
when units with invisible value issued by all states will be equated
by themselves or as a result of evolutionary development. Correspondingly,
any kind of national currency will be of the same value. Therefore,
the world money does not mean the single global currency. Creation of
the single global currency is rather dangerous act since it will involve
a great many unsolvable problems. In particular, it negates the world democratic
development conception, restricts state sovereignty; it suppresses the
national spirit and relevant international obligations, setting thus
absolute nihilism; it will give a permanent character to the world economic
crises; the world will find itself within a financial “magic circle”
of absolute distrust and chaos, from where no escape will be possible. Therefore,
the author believes that the world money does not imply introduction of the
single global currency. The world money will be a logical product of
mankind’s progressive and civil development, which will not put up with
bank-notes printing. Introduction of the single global currency will
be an artificial, rude and dangerous event interfering with the economic
and cultural development everywhere, evidence of which is the “Euro” experience.
Auth.
10.A3.5. Accounting
of amortization of intangible assets. /G. Nanuashvili, L.
Sadagashvili, M. Buziashvili/. Accounting. – 2012. – #4. – pp.
39-42. – geo.; abs.: geo., eng.
The
article deals with the issues related to the amortization of intangible assets.
The emphasis is made on the direction of reviewing the amortization period and
method. The definition of the useful life of intangible assets is given, taking
account of many factors. Outlined are the issues associated with the
amortization of intangibles that improves their accounting. The importance of
the International Accounting Standards (IAS) in this connection is also
stressed. Recommendations of the International Accounting Standards Board
(IASB) in connection with the perfection of amortization of intangibles are
mentioned.
Auth.
10.A3.6. The necessity of regulation of financial accounting and auditing in Georgia
according to international standards. /L.
Chumburidze/. Accounting. –
2012. – #5. – pp. 35-41. – geo.; abs.: geo., eng.
The
article deals with the issues of regulation of financial accounting and
auditing in the business sector in
Auth.
10.A3.7. Budgetary classification as a basis for accounting of budget
organizations. /M. Vardiashvii/.
Accounting.
– 2012. – #6. – pp. 24-30. – geo.; abs.: geo., eng.
The
article concerns the issues of improvement of the accounting system in the
government sector. The matter concerns importance of budgetary classification
in consolidation of accounting information at each level of budgetary entities.
It is emphasized that accounting of budgetary organizations as an integral part
of the Georgian national accounting system ensures the preparation of
accounting information at each level of the state finances management.
Considered are the classification of financial assets and liabilities, the purchase
and exist of assets, liability taking and coverage transactions, also the
groping of financial assets and liabilities by the types are considered.
Auth.
10.A3.8. Analysis of profitability
and investment activity ratios. /A. Chechelashvili/. Accounting. – 2012. – #7. – pp. 10-21.
– geo.; abs.: geo., eng.
Generally there are various methods of calculating and
interpreting results of profitability and investment activity ratios. It is difficult
to use all the existing ratios during an analysis of entity’s financial
standing. It is recommended to use the ratios ranked by priority. An analysis
of profitability and investment activity based on specific entity’s financial
information for several years and the appropriate conclusions were made based
on the analysis results.
Auth.
10.A3.9. Interrelation of basic
assumptions of accounting and qualitative characteristics of financial
reporting. /D. Sologhashvili,
T. Udesiani/. Accounting. – 2012. – #8. – pp.
30-35. – geo.; abs.: geo., eng.
Financial accounting is mentioned as a structurally established
picture of the financial standing of an enterprise and its business activity
showing the results of the enterprise’s resources management. The structural
bases of preparation and presentation of financial accounting imply two main
assumptions: the accrual method and the functional enterprise, the application
of which is associated with the qualitative characteristics of financial
accounting. This allows the user of information on the basis of correspondence,
reliability, equitable presentation, neutrality, completeness and other
evidencing and prognostic characteristics of the information content to make a
proper analysis and assessment of the enterprise’s past, current and future
activities.
Auth.
10.A3.10. Simplified
scheme of profit tax accounting. /I. Chiladze/. Accounting. – 2012. – #9. – pp. 30-39.
– geo.; abs.: geo., eng.
The article considers the existing procedure of accounting
of deferred tax assets and deferred tax liabilities arising upon
profit taxation, an analysis of which allows concluding that the available tax
liability accounting practice could be simplified. It is considered expedient
to compose only one simple clause of profit tax charging (9210) on the
credit side of debit and tax liability (3310), not as the profit amount accrued
from the accountable income but as the tax amount calculated from the taxable
profit.
Auth.
10.A3.11. Peculiarities
of modern theories of money. /S. Pavliashvili, L.
Jangulashvili/.
Metsniereba da Tskhovreba. –2012. – #1(5). – pp. 12-16. – geo.; abs.: geo., eng., rus.
In the course of centuries various economic views reflecting economic processes being characteristic for the given period used to be held. Together with the development of economy, economic models used to be developed and changed, which was frequently associated with the accelerated inflationary process. In the second half of the 20th century the Keynesian and the neoclassical conceptions had to be faced with this problem and failed in connection with definition of the role of money and monetary sector. As a result, a respective monetary economic policy has been formed. The development of world economy always encourages economists to create relevant economic models capable of overcoming existing economic crises or other problems.
Auth.
10.A3.12. Priority to utilization
of national resources. /A. Silagadze/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 17-23. – geo.; abs.: geo., eng., rus.
In the work, complicated conditions of
Georgian economics are briefly analyzed, the reason for which, as stated, is
inefficient utilization of national resources that increases dependence on
imports on a daily basis. The author believes that
Auth.
10.A3.13. Modern commercial bank
as an universal monetary institution. /G. Tsaava/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp.
32-36. – geo.; abs.: geo., eng., rus.
Banking institutions and diverse banks in modern society are
engaged in various kinds of operations; they not only organize cash flow and
credit relations, but also finance the economy, make purchase and sale of
securities, and in some cases carry, brokerage and asset management, advise and participate in the discussion of legislative and economic
programs, keep statistics, have their auxiliary companies. Bank as a specific
company produces a product substantially different from that of material
production; it produces not just a commodity, but means of payment in the form
of money. Activities of the bank
are focused primarily in the sphere of circulation and exchange rather than
manufacturing. The bank is an intermediary
between producers, being more seller than manufacturer.
Auth.
10.A3.14. Accounting
and forecasting. /G. Nanuashvili/. Metsniereba da
Tskhovreba. – 2012. – #1(5). – pp. 37-40. – geo.; abs.: geo.,
eng., rus.
It is
noted that a subject of management should possess all necessary information
about the object of accounting by the time of independent and responsible
decision-making as well as afterwards. In the traditional accounting system,
only the facts of economic life that have already been completed or are being
decided are considered. Under rapidly changing conditions, all the above seems
to be insufficient for proper management of a company.
Auth.
10.A3.15. Inflation and new
Keynesian model for Georgian economy. /G.
Khantadze/. Metsniereba da
Tskhovreba. –2012. – #1(5). –
pp. 40-44. – geo.; abs.: geo.,
eng., rus.
According to the
official statistics, the rate of average annual inflation amounted to 8.5% in
2011. The experts of the International Monetary Fund created a macroeconomic
model of the Georgian economy showing different parameters, such as how
inflation is related to the exchange rate and output gap. By means of using
this model the NBG will improve macroeconomic modelling and forecasting, which
will enhance more efficient and comprehensive formulation of the monetary
policy. The models of this type represent a new generation based on the new
Keynesian approach, which has recently been extensively used in different
central banks.
Auth.
10.A3.16. The main aspects
of making and termination of contracts of insurance. /A. Tsertsvadze,
Signing
an insurance contract implies the expresseion of a bilateral will and
compliance with specific procedures. The fact of making an insurance contract
is confirmed by an insurance certificate or insurance policy. An insurance
contract defines liabilities of the insurer and the policyholder. Termination
of insurance agreement can be caused by several factors, for instance, end of
insurance period, disappearance of insurance risk, death of the policyholder,
and other reasons. Also, an insurance contract can be terminated at any time
based on a mutal agreement, notwithstanding the period of insurance contract.
Auth.
10.A3.17. Price as one of the most important categories of the financial market.
/O. Shavishvili, M. Zedginidze/. Metsniereba da
Tskhovreba. – 2012. – #1(5). – pp. 49-55. – geo.; abs.: geo., eng., rus.
The market of
securities, on the one hand, and the banking price, on the other are the most
important economic categories. Their functions are inseparably growing according
to the development of market relations. Pricing is executed on the basis of
adequate laws on the national and world markets. Pricing must be based on
adequate economic laws of the given social system. The basic defect of price
systems of the post-communist period is that pricing failed to comply with
the objective requirements of economic laws, particularly, the laws of
correlation of the cost, demand and supply. The basis of the planned prices in
the “ocialist” pricing was considered an economic law of balanced development
of the “national economy”, the objective activity of which is doubtful.
Auth.
10.A3.18. The institutional
structure of the
The article deals with the formation and
development of banks and banking system in the
Auth.
10.A3.19. The development prospects of leasing business in
Modern leasing is frequently qualified as “funding
without balance”, because it inspires the attraction of monetary sources.
Leasing in some ways resembles a credit that is given in order to buy
machinery; that is why it can be also called a property credit. The development
of leasing is profitable both for entrepreneurs and the national economy as a
whole. A sound leasing market promotes financing of the country’s manufacturing
sectors, material and technical supply, development of SMEs, attraction of
investments, etc.
Auth.
10.A3.20. Modernization of national economies in a globalizing world. /N. Grazhevskaya/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 68-74. – rus.; abs.: geo., eng., rus.
The article provides an analysis of the
objective foundations of the modern world economic development and the specific
socio-economic forms of realization of globalization processes in the context
of the modern paradigm of modernization. Based on a study of the historical
evolution of the theory and practice of modernization, it is concluded that globalization
does not absorb the national economy, as the harmonious development of world
economic integrity is possible only in the unity of the manifold. In this
contest contemporary modernization of national economies manifests itself in
the dialectical unity of the common (post industrialization trends and
globalization), special (post-communist transformation of the individual
groups of countries), and a solitary (spatial and temporal, cultural and
civilization identity of the individual economies) in the transformation
process. Based on the analysis of global competitiveness ranking of 142
countries around the world in 2011-2012, it is justified that at the present
stage of the modernization of the transformation economies actions of
governments aimed on improvement of national competitiveness of the existing
economic systems on the basis of structural, technological and institutional
renewal have a very important meaning. The implementation of this strategic
objective involves the formation of an innovative model of economic development
and the establishment of an efficient market system that adapts to the global
economy by continuous qualitative transformation of the existing institutional
environment.
Auth.
10.A3.21. Practical ideas on accounting
of agricultural activities. /R. Dzadzamia/. Accounting. – 2012 – #10. – pp. 27-41. – geo; abs.: geo., eng.
The
present work is a review of possibility of practical use of IAS 41 “Rural Economy”.
It is focused on the issues that are specific for agriculture and in many cases
needs a lot of time to find the right decision. The work considers the
prerequisites for accounting system, which must be the basis for projecting
accounting object by accountants. In addition, there is schematically shown the
standard approach for assessment of biological assets and agricultural
products; also underlined is the fact the under inexistence of an active market
standards fail to define which approach should be prioritized – whether the
market prices or costs, or the capitalized values. It is mentioned that in such
a case the enterprise itself is to decide on which approach would be most
reliable to determine the real value.
Auth.
10.A3.22. Interrelation of hydro power stations construction
prohjects and attraction of investments. /N. Kodua/. Hydroengineering. – 2012. – #1-2(11-12). – pp. 49-55. – geo.; abs.: geo., eng., rus.
The problems of development of the existing hydro
resources for construction of hydro power stations are considered. It is shown
that the most advisable and justified approach for attraction of investors is
to present economically sound projects of hydro power stations construction
designed at the pre-feasibility stage where the error of calculations may be
about 10-15%.
Auth.
10.A3.23. Features of modern world
economic models. /Sh. Veshapidze/. Akhali Ekonomisti
(New Economist). – 2012. – #3. – pp. 14-21. – geo; abs.: geo., eng.
The article discusses such features and characteristics of world
economic models as: the U.S economic model; the European model (
Auth.
10.A3.24. Firm clusters in the global innovative
economy. /M. Kapanadze/. Akhali Ekonomisti
(New Economist). – 2012. – #3. – pp. 22-26. – geo; abs.: geo., eng.
The active development of clusters has been globally recognized as
an effective tendency of innovative enterprise activity. For example, in the
Declaration on the Strengthening of Economic Cooperation in Europe and action
plan adopted in 1997 the forming of new cluster-based enterprise systems is
recognized as one of the most actual ways of such cooperation. Globalization
of clusters acts through the mobility of a capital. In this process
transnational corporations buy local-scale enterprises. It is twice reflected
on the functioning of clusters. On the one hand, it can cause breakup of close
and sometimes informal linkages established between the clustered firms, as a
result of which the inter-cluster relationships become basically vertical. On
the other hand, entry of a transnational corporation can play a positive role
on the development of clusters through the innovations and extension of sale
markets (outlets) for clustered SMEs. Based on the historical experience,
clusters will need about a 10-year period for getting real competitive
advantages. This is one of the reasons that due to a 4-5-year election period,
politicians do not pay proper attention to or disregard cluster approaches in
their economic programs. Although, given the existing gathered experience, the
above-mentioned 10-year period of time can be essentially reduced.
Auth.
10.A3.25. Views on
investment redemption indicator. /Z. Gudushauri, N. Lazviashvli,
The article raises an issue of a joint use of the investment
redemption indicator and the profitability index of investments. The article
considers two options of income from investments. The first concerns the drawing
of annual income on an even basis, the second – on an uneven basis. The even
growth of income is depicted on the chart as a rectilinear curve; as for the
uneven income, it is depicted in two ways: the greater growth of income in the
first years – by the convex curve (FGD Curve), while the lesser growth of
income in the first years and the further increase – by the concave curve (FHD
Curve). The profitability index is calculated by the conditional example in 6
options and the advantage of investing in the given project with a high profit
margin under equal conditions of redemption of investments for the investor is
established.
Auth.
10.A3.26. Modern techniques
of effective time
management. /O. Shudra/. Akhali Ekonomisti
(New Economist). – 2012. – #3. – pp. 31-34. – geo; abs.: geo., eng.
The article focuses on the up-to-date techniques of effective time
management, such as: electronic database, mobile phone, commercial paperwork, relations
with co-workers, skills of debate, etc. It is emphasized that the effective
time management, its standard of economy is the standard of the development of
the whole society rather than individual organizations.
Auth.
10.A3.27. Innovative quantative method of credit risk evaluation. /N. Gongliashvili/. Akhali Ekonomisti (New Economist). – 2012. – #3. – pp. 35-37. – geo; abs.:
geo., eng.
The article considers various methods of evaluation of
creditworthiness of lending agencies companies that have been worked out lately
by such scientists as Altman, Chaser, Beverly, and others. Despite their great
number, every credit-scoring algorithm consists of such variables as net
profit, circulating capital, realization, general liabilities, and the market price
of private capital. According to the article, it is natural since these
indicators directly create the creditworthy potential of the lending agency.
Out of the mentioned innovative techniques, the author gives preference to the
Russian Model, corroborating it by similarity of the Georgian and Russian
business environments.
Auth.
10.A3.28. Consumer attitude towards social
responsibility of a company. /I.
Gigauri/. Akhali
Ekonomisti (New Economist). – 2012. – #3. – pp. 38-41. – geo; abs.: geo., eng.
The article discusses various studies confirming the overall
positive effect of corporate social responsibility (CSR) on consumer attitudes
and supports of the company. Consumers in many countries increasingly use
ethical criteria in their purchase decision. Moreover, socially responsible
consumption has also grown. Since ethical behavior is expected, the company is
rewarded by the consumer’s willingness to pay higher prices and thereby reward
its ethical behaviors. However, the consumer may also buy from unethical
companies, but punish them by demanding lower prices. While consumers in
developed countries are concerned, supportive and have positive perception
towards CSR, in developing countries, consumers are often unaware and
unsupportive towards CSR. But despite this, CSR in developing countries also
increases the positive attitude and loyalty towards the company and/or the
brand, and improves its financial performance. Thus, social responsibility can
have an essential and growing effect on the choice of marketing strategies,
especially in terms of the impact on consumer values.
Auth.
10.A3.29. Inclusive business development
prospects in
Social entrepreneurship is a business for a social mission as it
represents the process of manufacturing methods and means in order to achieve
social goals. When we talk about entrepreneurship it is obvious that the main
aim is to gain profit, although social entrepreneurship is separated from both
commercial and non-profit sectors. It is important not only for economic
efficiency, but for each participant’s contribution to work out some important
public issues. Inclusive business is one of the most important areas of social
entrepreneurship. This business model is based on indigent people and
conditions their involvement in the value creation chain. Entrepreneur’s
benefit from inclusive business is consumer’s expansion, newly recruited and
cheap labor force, stronger delivery and sales channels. Inclusive business
gives the opportunities to indigent people for satisfying their needs, gaining
a solid income, getting appropriate education, raising productivity. This trend
is developing gradually in
Auth.
10.A3.30. The problems of employment and unempoyment in
The article briefly discusses
unemployment as an inseparable phenomenon of a market economy. Its existence to
a certain extent under conditions of full employment is quite possible.
Unemployment has become the most urgent social and economic problem in
Auth.
10.A3.31. Severity of tax burden. /N. Gelashvili, M. Sirbiladze, M.Davladze/. Akhali Ekonomisti (New
Economist). – 2012. – #3. – pp. 67-70. – geo; abs.: geo., eng.
The article describes the evaluation of the severity of tax burden
according to the effective legislation, under which the impact of taxes on
investments is estimated by the corporate marginal effective tax rate (METR)
and the corporate average effective tax rate (AETR). Administration costs are
considered as one of the most important factors in assessing the tax burden.
Statistical data regarding the current situation in the region are given. Also
discussed is the impact of the war with
Auth.
10.A3.32. Country competitiveness and clusters:
history and the present. /I.
Gagnidze/. Publishing House
Universal. – 2012.
– pp. 119. – geo.
National competitiveness is one of the most controversial and complicated issues from the research point of view in the modern economic theory. At the same time, the post-Soviet transition countries with different starting conditions and heritage, traditions and national cultural valuables face an important challenge of developing an economic policy and adapting to new economic conditions in order to progress in the shortest period of time. To achieve these goals, many countries with transition economies successfully use in their economic development the strategy of national competitiveness and cluster concepts. We believe that their application will also benefit the Georgian economy. The present paper will serve as a sort of guide for scientists working on these issues, students, practicing economists, and wide circles of interested readers.
Auth.
10.A3.33. Transport corridor of
The article considers the
transport corridor of
Auth.
10.A3.34. Economic
Discomfort Index: content and applied value. /J. Archvadze/. Akhali
Ekonomisti. – 2012. – #1. – pp. 13-16. – geo.; abs.: eng.
Economic macroeconomic stability, its sustainability toward
negative tendencies, is well depicted by the economic discomfort index, which
is a total of the rate of inflation and the unemployment rate. The use of this
indicator in
Auth.
10.A3.35. EU
formulation’s development and law of competition. /R. Lortkipanidze/. Akhali
Ekonomisti. – 2012. – #1. – pp. 17-18. – geo.; abs.: eng.
The author develops the EU
formulation for practical stimulation of effective structural changes of the
economical reforms: E=[(Eio+Eit)/2]Δai; i=1; 2;…; n where E is the
effectiveness of structural changes in the t time period; Eio is the starting
effectiveness of the i structural element; Eit is the effectiveness of the i
structural element for the end of the t time period; Δai is the
percent change (:100) of the i structural element of the used resource in the t
time period; i=1; 2;…; n is the structural element (sector, region, age or
specific group, etc). To determine the economic competition strength (like the
known current strength law), the author introduces two indices: I1=U/R1 (where I1 is the first competition
index, U is
the total output of similar products, R1 is the output of similar
products by the largest manufacturer), and I2=U/R0 (where I2 is the second
competitions index, and R0 is unrealized production. For final monitoring, the
author proposes to calculate the average competition figure K=NxI1xI2, where Nq is the number of
firms supplying similar products to the market.
Auth.
10.A3.36. Main aspects
of real estate market’s general model. /A. Sichinava, Sh. Veshapidze, L. Karchava, L. Osadze/. Akhali Ekonomisti. – 2012. – #1. – pp. 24-33. – geo.; abs.: eng.
The article discusses a
prerequisite for formation of a real estate market in
Auth.
10.A3.37. Commercial
bank’s security portfolio. /R. Papaskiri/. Akhali Ekonomisti. – 2012. – #1. – pp. 40-42. – geo.; abs.: eng.
The article describes a financial
portfolio construction process. It is outlined that it can be done only after a
technical and fundamental analysis of the securities market has been made. The
work should be carried out by the bank’s finance manager. The article lists the
following economic indicators to be analyzed and assessed by the bank’s finance
manager: return on assets (ROA), overall liquidity ratio (K0),
capital structure (K3) and debt/equity ratio – assets’ market
price/income per share (D/E). The overall liquidity ratio shall not be less
than 200%; the capital structure ratio shall not exceed 50%, whereas the D/E
ratio should be as less as possible.
Auth.
10.A3.38. Methodological aspects of the financial and economic independence of a
region. /R. Tateshvili/. Akhali Ekonomisti. – 2012. – #1. – pp. 43-45. – geo.; abs.: eng.
The international theories of regional development of a country and the available experience of economic policy regulation are considered, together with the study of elements of the regional budgetary and tax equalization policy. A special importance is ascribed to the state’s active participation in the country’s territorial development regulation processes, using the budgetary and tax mechanisms.
Auth.
10.A3.39. Transboundary
cooperation of
The basic approaches to analyzing the phenomenon of transboundary
cooperation and the most common forms of such cooperation in
Auth.
10.A3.40. The role of
human capital in the economic development of
The article deals with the essence of human capital, its urgency
in modern epoch and significant role in the economic growth of a country.
Various survey results and statistics of international organizations are given.
The problems of human capital development in
Auth.
10.A3.41. Poverty - the outstanding
global problem and situation in
The article focuses on the problem of poverty in
Auth.
10.A3.42. Credit unions
in
At present, the whole financial system and credit unions, in particular,
are in the initial phase of their development. The situation that existed in
Auth.
10.A3.43. Foreign
direct investments in
The article estimates the necessity of a strong economy for
sustainable development of
Auth.
10.A3.44. Inflation causes
and ways of overcoming them. /N. Nikogosovi/. Akhali Ekonomisti. – 2012. – #1. – pp. 77-80. – geo.; abs.: eng.
The article discusses the causes of inflation in
Auth.
10.A3.45. A comparative review of Georgian, Armenian and
Azerbaijanian economies. /G.
Kuchukhidze/. Akhali Ekonomisti. – 2012. – #1. – pp. 81-83. – geo.; abs.:
eng.
Auth.
10.A3.46. Instruments
to measure enterprise clustering in Georgia. /I. Gogodze/. Georgian
Engineering News. – 2012. – #3. – v. 63. – pp. 65-71. – geo.; abs.: eng.
The article presents two instruments to evaluate the process
of clustering: a modified methodology of the European Cluster Observatory and
the clustering index, which can be used for developing enterprprise clustering
policy and monitoring the achieved results. The evaluations reflecting the
state of affairs in the enterprise clustering process carried out through
these instruments are considered.
Auth.
10.A3.47. Graphs in economics. /N. Varamashvili/. Business-Engineering. – 2012. – #4. – pp. 85-87. –
geo.; abs.: eng.
The major
tools of pictorial representations in economics are discussed. The rectangular
coordinates, linear, quadratic, exponential, and several variable function
graphs are considered and used. In some cases, the plotting rules and graphic
conception of coefficients in formulas of mathematical functions are examined.
Some mathematical functions and their graphs that can be used for economic
problem modeling and analysis are demonstrated.
Auth.
10.A3.48. The basic economic aspects of investment. /S. Sreseli/. Business Engineering. – 2012. – #4. – pp. 132-134. – geo.; abs.: eng.
In
the unanimous opinion of the majority of foreign and local experts, various
forms of collective investment has turned to be the most dynamic sector of the
financial market lately. Collective investment tool are the most important
element of the international capital markets. Investment funds build their
activity on the accumulation of means of ordinary investors and their placement
on dividend-bearing securities. The accumulation of funds is carried out by
issue and sale of own stock and/or shares. Investment funds can direct the
accumulated means only at investment activity. The positive role of collective
investment is hardly assessable in the process of stabilization of the
financial system of both individual countries and regions as well as of the
world economy. The main economic advantages of investment funds are: the
efficiency and information transparency; diversification; professional
management; liquidity; convenience; tax privileges; controllability.
Auth.
10.A3.49. Economy of
Economic and
institutional reforms are analyzed on the grounds of specification of peculiarities of contradictory procecess
of economic development and their interrelation; considered are the issues related to the reform of budgetary and monetary
systems; described are the national wealth and demographic trends,
peculiarities of regional economics, agricultural, manufacturing and service
sectors, development of tourism, especially of resorts and rich recreational
potential. All issues are considered in the context of global processes and the
ways out of the crisis are indicated. In the authors’ opinion, full copying of
the development model of any other country is inadmissible for
Auth.
10.A4.1. Knowledge assessment methods and innovation potential
of
The quantitative indicators of the country’s
innovation potential and assessment methods used by different international
organizations are given. The structure of the European Innovation Board
indicators, according to which competitiveness and innovation in the EU Member
States are measured, is described. According to the state of innovation
potential and development of information and communications technologies in
2009-2010,
Auth.
10.A4.2. Organization
of the English language teaching process. /N. Tsotsonava/. Metsniereba da
Tskhovreba. – 2012. – #1(5). –
pp. 183-186. – geo.; abs.: geo., eng., rus.
The article deals with the precise pedagogical
organization of teaching phraseological units in the English language at a
certain stage and defining the ways and means of their solution. The article
also touches upon the elaboration of the habits for understanding English
phraseological units and their usage in oral speech.
Auth.
10.A4.3. Problems of holding exams at universities in terms of
the learning process hygiene. /N. Chakhunashvili,
The current reform
in the educational field considers the training of professional, competitive,
modern specialists. To achieve this goal, one has to follow a rather
difficult path, requiring proper planning of the entire educational process and
compliance with the general provisions of school hygiene. The pedagogical
process hygiene-related problems are most urgent among other problems faced by
higher education institutions, such, for example, as intellectual work hygiene
of the youth, the pre- and post-examination hygiene, the hygiene of text-books,
etc. The problems connected with the organization and holding of exams at
universities and the deplorable results in case the hygiene rules are violated
are discussed.
Auth.
10.A4.4. Social and
psychological factors of the teacher’s authority. /N. Saginashvili/.
Metsniereba da Tskhovreba. – 2012. – #1(5). –
pp. 189-194. – geo.; abs.: geo., eng., rus.
The article
deals with the social and psychological factors of the teacher’s authority in
groups of junior and senior students and the final-year students of the faculty
of education. As the study results have shown, the teacher's authority in the
group of junior students is conditioned by personal factors, but senior
students pay more attention to the teacher's professional component. The most
important for them is the teacher’s knowledge of the subject. As for the
final-year students of the faculty of education, the professional competence of
the teacher is most valued by them.
Auth.
10.A4.5. Main trends and
problems of personnel management in educational institutions. /M. Gedevanishvili,
The
ongoing democratic reforms in
Auth.
10.A4.6. Free programs in
educational and scientific activity. /M. Gegechkori, V. Bakhtadze, T. Zhvania, N. Narimanidze, T. Burchuladze/.
Proceedings
of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 207-211. – geo.; abs.: geo., eng., rus.
The article lists some
modern priority free programs, compares their advantages over the proprietary
programs and considers the positive aspects of transition to free software.
Auth.
10.A4.7. Business engineering training in foreign universities.
/M. Kopaleishvili,
The academic programs of training in business
engineering in a number of leading world universities are presented. It is
mentioned that the theory and methodology of the discipline have not been
sufficiently studied. Business engineering academic programs and the duration
of studies are different in different universities. General for these programs
are the compulsory general, engineering, economic and language training courses.
Training is carried out in accordance with the European Credit Transfer and
Accumulation System – ECTS. The training courses for degrees of Master of
Business Engineering (MBE) and Bachelor of Business Engineering (BBE) in the
universities of
Auth.
À5. Informatics/Computer Science
10.A5.1. Questions of the choice of the working step
for processes of measurement with optimum algorithms for discrete monitoring systems
and gathering of the ground and flight information. /E. Hazarkhanov/. Proceedings of the Georgian National Academy of Sciences. Chemical
Series. – 2012. – vol.
38. – #1. – pp. 113-117. – rus.; abs.: geo., eng.
Questions
of a choice of a working step for processes of measurement with optimum
algorithms for discrete monitoring systems both without handicaps, and in
conditions of handicaps are considered.
Auth.
10.A5.2. Graphs transformation by means of factorization of vertexes and graphs
coloring. /R. Kutateladze, A.
Kobiashvili/. Transactions of
Different cases of conceptual representation of schemes as
graphic models are discussed. The modes of conversion of graphs reducing
their structure are represented and the advantages of coloring graphs and
introducing dummy vertexes are analyzed. Concrete possibilities of graph
transformation are demonstrated with an example.
Auth.
10.A5.3. On iterative algorithms for solving high-dimensional
linear programming problems. /N. Jibladze, A. Topchishvili, M. Andguladze/. Proceedings of the A.
Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 43-49. – eng.; abs.: geo.,
eng., rus.
Two
developed iterative algorithms for solving high-dimensional linear programming
problems are proposed: the first one is based on the gravitation centers
method, the second one is realized on the basis of the constant step gradient
method. Although the developed iterative algorithms are approximate, in most
cases their application in high-dimensional linear problems is justified
because they are characterized by such positive properties as simplicity of the
algorithm and the program, speed and, most important, the appropriate software
is devoid of “looping”.
Auth.
10.A5.4. On an algorithm for finding the best variant in the directed graph. /K.
Kutkhashvili/. Proceedings of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 50-54. – geo.; abs.: geo.,
eng., rus.
The
solution of many practical problems requires the construction of algorithms
based on the graph theory methods. The article considers an algorithm for
solving an optimization problem in the directed graph. Namely, a directed graph
linked to n vertex on which arcs the
weighted functions T(n) and R(n) are determined. It is necessary to construct
an algorithm that would enable to find a way, through which all the vertices
could be routed; at the same time, each vertex should be reached exactly once,
so that definite restrictions attached to the weighted functions are
implemented and this way is the best one in terms of any criteria.
Auth.
10.A5.5. Comparative analysis of searching
for the shortest routes in graphs. /N. Ananiashvili, N. Otkhozoria/. Proceedings
of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 66-70. – geo.; abs.: geo.,
eng., rus.
Computing the shortest routes in graphs is a very useful
and important task. The practical realization of these tasks is possible by
using the existing and tested approaches. The realization of two algorithms
(of Dijkstra and Bellman-Ford) was considered important. Given complexity if
time, in the case of positive weighted graphs the use of the Dijkstra’s
algorithm is preferable, whereas in the case of negatively weighted
graphs, preference is given to the Bellman-Ford algorithm.
Auth.
10.A5.6. Integrated-optic
switch 4x4. /Z.Buachidze, A.Gigineishvili,
A.Chirakadze, N.Kavlashvili/. Proceedings of the A. Eliashvili
Institute of Control Systems. – 2012. – #16. – pp. 71-74. – geo.; abs.: geo., eng.,
rus.
The article describes the commutating
switcher 4x4
based on
an
integrated-optic strip
waveguide. Switching
of coherent
light emission
from one channel
to another
is performed
based on linear electro-optic
effect.
Switching speed
is of
the πs
degree, while the switch signal’s power of the μW degree.
Auth.
10.A5.7. The semantics of two Georgian cases: instrumental and adverbial. /E. Dokvadze, G. Chikoidze/. Proceedings of the A. Eliashvili Institute of
Control Systems. – 2012. – #16. – pp. 145-157. – rus.; abs.: geo., eng., rus.
Semantic structures of both cases are represented by
tree diagrams; in both cases spatial meanings are taken as the initial (base)
point: in the case of the instrumental diagram, this is a notion of
“accompaniment” of two objects; as for the adverbial diagram, it starts in
space, with the meaning of “reaching” some place, some position; the central
semantic area of the former is characterized by the meanings of “instrument”
and “cause”, while that of the latter - of “aim”.
Auth.
10.A5.8. Georgian “ancestors” of the logical implication.
/G. Chikoidze, N. Amirezashvili,
Many (if not all) essential abstractions have their
roots in natural languages. Taking into account that "true" abstract
concept must not lose its connection with the source from which it is
developed, it is quite important to compare the current state of some concepts
with the semantics of language units, which can be considered as its "ancestors".
The paper considers the particular case of this general relation by the example
of logical implication and its semantic correspondences in the Georgian
language. The considered English definitions indicate on relations between logical
implications and the corresponding Georgian conjunctions in many other
languages as well.
Auth.
10.A5.9. The computer communication system for
handicapped people. /L.
Lortkipanidze, L. Samsonadze/. Proceedings of the A. Eliashvili Institute of
Control Systems. – 2012. – #16. – pp. 166-170. – eng.; abs.: geo., eng., rus.
The
offered computer communication system will be developed for Windows as software
and help a handicapped person communicate by using symbols.
Auth.
10.A5.10. Description of lexical unit “snow” by lexical
functions. /E. Dokvadze/. Proceedings of the A. Eliashvili Institute of
Control Systems. – 2012. – #16. – pp. 171-176. – geo.; abs.: geo., eng., rus.
The paper defines a lexical unit ‘tovli’ (snow), which
belongs to the lexical units expressing “natural phenomenon”; its description
is formulated in the terms of “lexical functions”, synonymic series”, etc.
Auth.
10.A5.11. The Georgian language
computerization conceptions. /L. Margvelani/. Proceedings of the A. Eliashvili
Institute of Control Systems. – 2012. – #16. – pp. 177-180. – geo.; abs.: geo.,
eng., rus.
The
conceptions of both computerization and modeling of the Georgian language, also
the ways of the solution of related to them problems are considered in the
work.
Auth.
10.A5.12. Verbal models of
medioactive verbs with i thematic marker for an electronic dictionary. /N. Javashvili/. Proceedings
of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 181-184. – geo.; abs.: geo.,
eng., rus.
Databases completed with proper knowledge and rules
are necessary for electronic dictionaries as well as for any other
dictionaries. With the aid of knowledge storing computer-based expert system
the bases are completed with rules which are based on grammatically correct
paradigms. The medium voice models with i
thematic marker, which are one of the subgroups of verb component of the
Georgian language database, are presented in the work.
Auth.
10.A5.13. Immediate
constituent structure of a sentence and synonymic substitutions in NP. /A. Chutkerashvili/. Proceedings of the A.
Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 185-188. – geo.; abs.: geo.,
eng., rus.
Immediate constituent structure of a sentence is one
of the most common representations of any syntactic structure, when a sentence
is represented by models and relations between their extensions. The paper
considers synonymic substitutions in the noun phrase of a sentence. The
constituents of a noun phrase, which define the noun or the nucleus of NP are
in a logical order, in case the sentence is stylistically and informationally
neutral. Upon substitution of the NP constituents with their synonyms the word
order might be changed.
Auth.
10.A5.14. The advanced quantum search algorithm. /M. Archuadze, G.
Besiashvili, M. Khachidze/. Proceedings of the A. Eliashvili Institute of
Control Systems. – 2012. – #16. – pp. 189-196. – geo.; abs.: geo., eng., rus.
In
quantum computation the Grover’s algorithm is of most importance. The paper
considers the quantum computing based on the mathematical machines of quantum
groups and quantum logic gates. Such computing is used in unstructured data
bases in one of the options for the iterative Grover’s search algorithm, where p
is replaced by p/3
and the minimization of error probability
happens stage-wise in the process of convergence of the algorithm.
Auth.
10.A5.15. Role and place of failures in information security of modern complex
systems. /M.
Surguladze/. Proceedings of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 197-202. – rus.; abs.: geo., eng., rus.
Intellectual
and electromagnetic compatibility methods of active diagnostics of failures of
hardware-software systems are considered and offered. The concept of the
complex decision of a problem of increase of reliability of the space
radio-electronic equipment in C-frequency range is presented.
Auth.
10.A6.1. The
service quality and consumer loyalty. /G. Nadirashvili, Ch. Jashi/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp.
23-27. – geo.; abs.: geo., eng., rus.
The article explores the theoretical and
methodological issues in the services sector. In particular, the relationship
between the service quality and customer loyalty, methods of quality evaluation
and their role in raising the service quality and customer loyalty are discussed.
The given estimations and recommendations are very important for implementing
effective marketing strategies and formulating long-term profitable
relationships with customers. An increase in the service quality and
satisfaction of customers are particularly important for under the prioritized
tourism industry development in
Auth.
10.A6.2. Ilia Chavchavadze’s
views on the problem of political elite and ideology. /A. Tukvadze, L. Lortkiphanidze/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 140-144. – geo.; abs.: geo., eng., rus.
Ilia Chavchavadze admitted the leading role
of elite in the process of society’s development and pointed to the elite
structure of society. Based on the development dialectics, Ilia Chavchavadze
proved the importance of convergence of liberal and conservative ideologies. In
his opinion, only the nations sharing the values of both ideologies in the
process of state building will succeed. The practice of development of modern
democracies corroborates validity of his views. His political concept is
topical, modern and has a pragmatic meaning in the process of the Georgian
state building and democratization.
Auth.
10.A6.3. Turks in
On October 30, 1961
Auth.
10.A6.4. Imagination in science. /F. Habashi/. Nano Studies. – 2012. – #5. – pp. 121-132. – eng.
There are many cases that show how
instrumental was imagination of researchers and scholars in the progress of science
during the history of our civilization. Some of these ideas, that used to be
first an object of ridicule, have become later the foundation of modern
science. Several such cases, beginning from the ancient Greeks, who used to
measure sizes of the Earth, followed by calculation of its weight in the 18th
century by a British scientist, to modern times, when nuclear (Uranium) fission
was predicted by a German chemist five years before its discovery, are surveyed.
Auth.
B1.
Mathematics. Mechanics. Physics. Cybernetics
10.B1.1. On the
nature of light. /O. Lomaia/. Metsniereba da teknologiebi. – 2011. –
#4-6. – pp. 42-48. – geo.; abs.: eng., rus.
The views on the nature of light and the
tests conducted for studying the phenomenon of “quantum behavior” of electrons
in experimental physics are reviewed. It is supposed that any type of radiation
of a substance, including light, consists of radial and wave diffusion. They
are variants of qualitative matter and energy that propagate in space with the
velocity of light without mixing. Radiation does not comprise charged motionless.
They originate during the propagation of radiation in space. Electron is a
particle and not a wave-particle as stated by the leading quantum mechanics
researchers.
Auth.
10.B1.2.
On the Cramer-Rao inequality in an
infinite dimensional space. /E. Nadaraia, P. Babilua, M. Patsatsia, G. Sokhadze/. Bulletin of
the
The Cramer-Rao inequality is
obtained in Banach space by using the technique of smooth measures. The
principle of maximum likelihood is formulated. The examples are considered.
Auth.
10.B1.3. The
Cauchy-Nicoletti multipoint boundary value problem for systems of linear
generalized differential equations with singularities. /M. Ashordia, M. Kvekveskiri/.
Bulletin of the
Considered is the Cauchy-Nicoletti multipoint boundary value problem
Dx(t) = dA(t)× x(t) + df(t) for t a,b],
xi(ti+)
= 0, xi(ti – ) =
0, (i= 1, …, n)
where x1,…xn
are the components of the desired solution x,– ∞ < a <ti ≤ ti + t1
< b < ∞, f = (f1)n 1=1
: [a,b ]→ Rn is a vector-function
the components of which are functions with bounded variations, and A=(ail)n i,l=1
: [a,b ]→ Rnxn is a matrix-function such that the functions
ail,…,ail have
bounded variations on every interval from [a, b] which do not include the point ti for every I {l,…n}. The sufficient conditions are
established for the unique solvability of this problem in the case when the
considered system is singular, i.e., the components of the matrix-function A do not have bounded variation on the
interval [a, b].
Auth.
10.B1.4. Partially
independent random variables. /O. Glonti/. Bulletin of the
In this paper the definition of A-independence
of X and Y random variables is introduced and
the example of A-independent
random variables is constructed. Regression of X on Y and
regression of Y on X are investigated. Also the joint
characteristic function of this random variables is obtained.
Auth.
10.B1.5.
On some approximation properties of
Generalized Fejér Integral.
/D. Ugulava/. Bulletin of
Problems of
approximation in spaces of p-integrable for some p, as well as essentially bounded functions defined
on a locally compact Abelian group are considered. Analogs of Fejér well-known
positive operators are taken as approximate aggregates.
Auth.
10.B1.6.
On reconstruction of coefficients of a
multiple trigonometric series with Lebesgue nonintegrable sum. /Sh. Tetunashvili/. Bulletin of
Cantor's
functionals sequence notion for one-dimensional trigonometric series is
introduced. Also, the possibility of reconstruction of coefficients of multiple
trigonometric series with Lebesgue nonintegrable sum by iterated use of
Cantor's functionals is established.
Auth.
10.B1.7.
Characteristics of the solution of the
consistently linearized eigenvalue problem for lateral torsional buckling. /M. Aminbaghai, H. Mang/. Bulletin of the
The consistently
linearized eigenvalue problem has proved to be a powerful mathematical tool for
classification of buckling, based on the percentage bending energy of the total
strain energy. Of particular interest are pre-buckling states with constant
percentage strain energy. The two limiting cases of such states are membrane
stress states and states of pure bending. Buckling at pure bending, referred to
as lateral torsional buckling, is the topic of this work. The transfer matrix
method is used to derive a secant stiffness matrix in analytical form.
Formulation of the consistently linearized eigenvalue problem by means of this
matrix yields the same solution as would be obtained by a formulation based on
the tangent stiffness matrix which is an essential ingredient of nonlinear
Finite Element Analysis. This remarkable finding permits analytical
verification of hypothesized subsidiary conditions for lateral torsional buckling.
Auth.
10.B1.8.
Non-local refined theory for nanobeams
with surface effects.
/I. Elishakoff, C. Soret/. Bulletin of the
In this study we
propose governing differential equations for beams taking into account shear
deformation, rotary inertia, locality and surface stress effects. It is shown
that the equation is both simpler and more consistent than the appropriate
Bresse-Timoshenko equations extended to include locality and surface stress
effects. Proposed equation contains 11 terms with respect to displacement
versus 19 terms appearing in the equations that extend the Bresse-Timoshenko
equations to include non-locality and surface effects.
Auth.
10.B1.9. Delta-like singularity in the radial
By careful
exploration of separation of variables into the Laplacian in spherical
coordinates, we obtain the extra delta-like singularity, elimination of which
restricts the radial wave function at the origin. This constraint has the form
of boundary condition for the radial Schrödinger equation.
Auth.
10.B1.10.
Fusion and fission of rare radioactive
isotopes by laser driven ions.
/D. Garuchava, K. Sigua/. Bulletin of the
The dynamics of
overdense ion bunches created by ultra-intense femtosecond laser pulses is
studied in order to use them for the fusion of rare isotopes. It is possible to
use them for creation of super-heavy elements as well as for fission of
radioactive nuclei.
Auth.
10.B1.11. The non-perturbative analytical equation of
state for the gluon matter. /V. Gogokhia, A.
Shurgaia/. Bulletin of the
In order to derive the equation of state for the
pure SU(3) Yang-Mills fields from first principles, it is proposed to
generalize the effective potential approach for composite operators to nonzero
temperature. It is essentially non-perturbative by construction, since it
assumes the summation of an infinite number of the corresponding contributions.
There is no dependence on the coupling constant, only a dependence on the mass
gap, which is responsible for the large-scale structure of the QCD ground
state. The equation of state generalizes the bag constant at non-zero
temperature, while its nontrivial Yang-Mills part has been approximated by the
generalization of the free gluon propagator to non-zero temperature, as a first
necessary step. Even in this case we were able to show explicitly that the
pressure may continuously change its regime at T* = 266.5 MeV. All the other
thermodynamical quantities such as the energy density, entropy, etc. are to
be understood to have drastic changes in their regimes in the close vicinity of
T*. All this is in qualitative and quantitative agreement with thermal lattice
QCD results for the pure Yang-Mills fields. We have firmly established the
behaviour of all the thermodynamical quantities in the region of low
temperatures, where thermal lattice QCD calculations suffer from big
uncertainties.
Auth.
10.B1.12. An investigation of bound qqq-systems on the basis of the
Salpeter equation in the framework of simple approach with use of expansion in
terms of hyperspherical harmonics. /T. Babutsidze,
T. Kopaleishvili, V. Skhirtladze/. Bulletin of the
The approach is developed to the solution of a
problem of three bound constituent quarks (baryon) on the basis of Salpeter
equation with two required 8-component spinors, having clear physical sense in
the meaning of a particle-antiparticle (baryon-antibaryon), without so-called
relativization of full wave function. The doubtful character of consideration
of two-particle interaction under quark confinement conditions is stressed. It
is proposed to use expansion in terms of hyperspherical harmonics for
calculations of compact bound systems with three-particle interactions. Two
elementary types of the central three-particle interaction - linear and
oscillatory potentials - are considered. The approach proposed in this paper
will be applied numerically to light baryon calculations.
Auth.
10.B1.13. Positive solutions of two-point boundary value
problems for higher order nonlinear singular differential equations.
/I. Kiguradze/. Bulletin
of the
For higher order
nonlinear differential equations with singularities with respect to the time
and phase variables, the sufficient conditions for the existence of positive
solutions for the Dirichlet and focal boundary value problems are established.
Auth.
10.B1.14. Ito’s formula in Banach space. /B.
Mamporia/. Bulletin
of the
Ito’s formula for the
generalized random processes and for the random processes with values in
separable Banach space is proved.
Auth.
10.B1.15. Non-classical problems with non-local initial
conditions for abstract second-order evolution equations.
/G. Avalishvili, M. Avalishvili/. Bulletin of the
The non-classical
problems for abstract second-order evolution equations with non-local initial
conditions are considered. The existence and uniqueness results for general
non-local in time problems are proved in suitable spaces of vector-valued
distributions with values in abstract Hilbert spaces. An iteration algorithm of
approximation of solution to non-classical problem by a sequence of solutions
to corresponding classical problems is constructed and investigated. Applying
general results obtained for non-classical problems in abstract Hilbert spaces,
non-local in time initial-boundary value problems for hyperbolic equations and
systems are studied.
Auth.
10.B1.16. Semimartingale backward equations with convex
generator. /B. Chikvinidze/. Bulletin of the
The work concerns the
semimartingale backward stochastic differential equations (BSDE) with convex
generators of quadratic growth. The existence of a solution for such equation
driven by a continuous martingale with unbounded characteristic is proved. A
suitable optimization problem is introduced and that the corresponding value
process satisfies the above mentioned BSDE is proved.
Auth.
10.B1.17. Factorization of loops in loop groups.
/G. Giorgadze, G. Khimshiashvili/. Bulletin of the
Loops in a loop group
of compact Lie group are considered. In this context, generalizations of
several results on existence of Birkhoff factorization for matrices with
parameters are obtained and their applications to the Riemann-Hilbert problem
in loop spaces discussed in the preceding papers by the authors are indicated.
Auth.
10.B1.18. Method of calculation of the breaking force of
the continuous cast billets on a rotor-type casting machine.
/G. Kevkhishvili,
The process of breakage
of continuous cast billets is the main factor in assessing energy-power
parameters of a rotor-type casting machine. In the paper on the example of
SiMn20, FeSi45 and FeSi75 the impact of various characteristics on forces
occurring during breaking the billets is shown. These characteristics are
chemical content of cast metal, physico-mechanical parameters, cross-section of
continuous cast billet, geometry of knives for breaking of breaking mechanism,
the distance between the pressure roll and breaking knife. The working
principle (vibratory motion of breaking knives) that significantly decreases
breaking forces for ultrastrong ferroalloys with the ultimate strength higher
than 200 kg/mm2 is offered.
Auth.
10.B1.19. On the deuteron relativistic wave function.
/L. Abesalashvili, L. Akhobadze, V. Garsevanishvili, T. Jalagania,
Light front form of the
relativization of the deuteron wave function is considered. Parameters of the
wave function are extracted comparing theoretical results with experimental
data. Experimental data are obtained on the two-metre propane bubble chamber of
JINR (Dubna) bombarded by the deuteron beam with momentum of 4.2 GeV/c/nucleon.
Auth.
10.B1.20. Study of multi-particle azimuthal correlations
of negative pions at momenta of 4.2, 4.5 GeV/c per nucleon.
/L. Chkhaidze, T. Jobava, L. Kharkhelauri/. Bulletin of the
The collective properties of - mesons in HeC, CC, CNe,
MgMg, CCu, CTa and OPb collisions at momenta of 4.2, 4.5 GeV/c per nucleon have
been investigated. The data stem from the SKM-200-GIBS streamer chamber and
Propane Bubble Chamber systems utilized at JINR. Multi-particle azimuthal
correlations of - mesons have been studied within the standard transverse
momentum analysis method of P. Danielewicz and G. Odyniec. In the phase space
the axis has been identified and pion correlations were observed with respect
to this axis. The values of the correlations linearly depend on the mass of all
colliding pairs of nuclei.
Auth.
10.B1.21. Heat capacity of rare-earth quasi-stoichiometric
dihydrides. /N. Namoradze,
Temperature dependence of the total heat capacity of
light rare-earth dihydrides is calculated. The results of calculations are
compared with the corresponding experimental data and a number of parameters
characterizing the metal-hydrogen system are determined.
Auth.
10.B1.22. Calculation of the trajectory of a test particle
in the FRW space-time based on Lyra geometry for the perfect fluid with
massless scalar field. /M. Yavari/. Bulletin of the
The exact solutions of the field equations for the FRW
cosmological model are presented when the source of gravitational field is a
perfect fluid coupled with a massless scalar field within the framework of Lyra
geometry. Then, the trajectory of a test particle in this space-time by using
the Hamilton-Jacobi formalism is calculated.
Auth.
10.B1.23. The black hole phase of the universe.
/R. Natsvlishvili/. Bulletin
of the
A state of the universe
by its average density and possible radius is considered. By a mass assessed on
the basis of these parameters, the expectable cases when the universe may occur
inside the Schwarzschild’s sphere and form the black hole, are calculated. An
inner non-stationary nature of the Universe by an example of the evolutionary
stages of its existence as the black hole are analyzed, which indicates that a
non-stationary nature of the black holes is their usual form of state.
Auth.
10.B1.24. Probabilistic model of statistical system with
nano-particles. /V. Tsitsishvili/. Proceedings of the Georgian National Academy of Sciences. Chemical
Series. – 2012. – vol.
38. – #1. – pp. 57-61. – rus. abs.: geo., eng.
Statistical systems including nano-particles
have been considered taking into account probability of stochastic changes in
macroscopic ensemble configuration. Usual for simple homogenous systems
Markov’s chain is compared with stochastic process of non-Marcovian character
described with application of fractional integral and differential operators.
Balance equations are constructed and characteristic properties of self-functions
of fractional integral and differential operators (“fractional exponents”) are
considered.
Auth.
10.B1.25. Study of the function of liquid motion in
homogeneous initial and boundary conditions. /G. Kirmelashvili/.
Hydroengineering. – 2012. – #1-2(11-12). – pp. 76-83. – geo.; abs.: geo., eng.,
rus.
In order to study plane motion of viscous
incompressible fluid it is necessary to find stream function ψ(x, y, t)
satisfying the equation 
and the following
limiting conditions: in initial moment the values of stream function and on
boundary surface its first order partial derivatives according to coordinates. It
is proved here that in homogeneous initial and boundary conditions the equation
has only one zero solution in steady-, as well as, in unsteady-state cases.
Auth.
10.B1.26. Separability of not necessarily convex sets. /V. Maisuradze, M. Salukvadze, V. Gabisonia/. Proceedings of the
A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 7-30. – geo.; abs.: geo., eng., rus.
The Hahn-Banach
theorem about extension of linear functional defined on the subspace of given space
on the whole space is widely known from the functional analysis. Fundamental
statements about separability of subsets of linear space follow from the
mentioned theorem. The theorem independently and geometric corollaries
following from it play a large part in many sections of mathematics,
particularly in the optimization theory. The possible expansion of geometrical
form of the Hahn-Banach theorem about separability of not necessarily convex
sets by not necessarily linear functional from the single point of view is
considered in the presented article. The mentioned nonlinear functional has
been built constructively. Results can be applied to the problems of vector and
nonscalar optimization, namely to study the scalarization of nonscalar
optimization tasks and other problems.
Auth.
10.B1.27. Structural identification of nonlinear systems using block-oriented models. /B. Shanshıashvılı, M. Salukvadze/. Proceedings of the A.
Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 31-36. – eng.; abs.: geo., eng., rus.
The problem of structural
identification of nonlinear continuous dynamical systems is considered on the
set of continuous block-oriented models, which is "greater" than the
one considered earlier, under input periodical influences of the system. The
criterion determining the model structure is developed.
Auth.
10.B1.28. Parametrıc
ıdentıfıcatıon of one class of the lınear
non-statıonary systems. /B. Shanshıashvılı/. Proceedings of the A. Eliashvili Institute of
Control Systems. – 2012. – #16. – pp. 37-42. – eng.; abs.: geo., eng., rus.
The problem of
parametric identification of linear non-stationary dynamic systems is
considered. Stated is the problem of parametric identification as, in a certain
sense, an inverse problem of Cauchy’s problem for linear ordinary equations.
Under some restrictions on the system’s parameters and input and output
variables the existence theorem of such interval, in which a continuous matrix
of coefficients is identified, is formulated and proved. The parameter
estimation algorithm is investigated by the example of the second- order system
identification.
Auth.
10.B1.29. Identification of thermal dynamic objects by
regression and recursion methods. /Kh. Bardavelidze,
A. Bardavelidze/. Proceedings
of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 55-59. – geo.; abs.: geo., eng., rus.
The work
discusses the setting of a task of thermal dynamic object identification. For
determination of the object’s transfer function coefficients the least squares
method is used. The curve obtained as a result of active identification is
approximated by an aperiodic element of second order. The transient response is
considered as parametrical dependence on the model’s coefficients. It is
established that the continuous model of the object causes some determined
difficulties, so it is more convenient to use the object’s discrete model. The
object identification is studied by the regression and recursion procedures of
the least squares method. The recursion procedure is found to be better
compatible to the object’s real response.
Auth.
10.B1.30. Research of the
stationary magnetic field distribution; identification of its properties and
scope of application. /O. Labadze, A. Lomia, D. Eremyan,
V. Bakhtadze, T. Khutsishvili/. Proceedings of the A. Eliashvili Institute of
Control Systems. – 2012. – #16. – pp. 79-82. – geo.; abs.: geo., eng., rus.
Distribution of magnetic field
lines on the surface of the tripole permanent magnets made from hemispherical,
spherical and prism magnets are obtained. Their characteristics, properties
and scope of application are established.
Auth.
10.B1.31. Physical basics and
features of the construction of a contactless three-position dynamic object.
/O. Labadze, M. Tsertsvadze, T. Labadze, P. Manjavidze/. Proceedings of the A.
Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 83-88. – geo.; abs.: geo., eng., rus.
The physical basics and the
implementation of contactless control of a three-position dynamic object
based on studies of various symmetrical shapes of magnets are considered. The
found and installed features ensure not only reliable operation of the control
system, but also preserve the specific information of the magnet system after
removal of the control pulses, reducing thus the consumption of energy.
Auth.
10.B1.32. On the Karman constant in the logarithmic
formula of velocity distribution in a turbulent flow. /T. Magrakvelidze/. Proceedings of the A. Eliashvili
Institute of Control Systems. – 2012. – #16. – pp. 112-115. – geo.; abs.: geo., eng., rus.
The paper considers some issues of velocity
distribution in the turbulent bulk in case of liquid flow in the cylindrical pipe.
It is shown that coincidence with experimental data of logarithmic formula of
velocity distribution based on the theory of mixing range is better when Karman
constant k=e-1=0.368, than in case when k=0.4.
Auth.
10.B1.33. The effect of the Prandtl number on heat
transfer in the apparatus with a stirrer. /T. Magrakvelidze, N. Bantsadze, A.
Mikashavidze, N. Lekveishvili, J. Rusishvili, Kh. Lomidze/. Proceedings of the
A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 116-120. – geo.; abs.: geo., eng., rus.
The results of experimental investigation are
presented, under which in the case of liquids with high viscosity the relation
of heat transfer intensity on the Prandtl number both for smooth and rough
surfaces is the same as in the case of distilled water.
Auth.
10.B1.34. On the role of mathematics in physics. /K. Gigineishvili, G. Goderdzishvili, T.
Gegechkori/. Proceedings of the A. Eliashvili Institute of Control
Systems. – 2012. – #16. – pp. 239-243. – geo.; abs.: geo.,
eng., rus.
The article deals with the amazing
effectiveness of mathematics in natural sciences, especially in physics that
is not subject to any rational explanation. Natural laws conform to
mathematical rules with great accuracy. The role of mathematics in studying the
regularities of the physical world and particularly in creating a unified theory
is discussed.
Auth.
10.B1.35. New direction in construction of matrix one-way function and tropical cryptography. /R. Megrelishvili/.
Proceedings of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 244-248. – eng.; abs.: geo., eng., rus.
The goal of this paper is to
substantiate the original high-speed one-way matrix function and key exchange algorithm
for an open channel which is considered on the basis of the mentioned one-way
matrix function. It is connected, obviously, to the existing global problem.
This problem lies at the root of the fact that at present there are no other
one-way functions (known and accepted) with a higher speed than the same
functions in the algorithms of Diffie-Hellman and RSA. The author concludes
that such a function can be the one-way matrix function that is described in
this paper. The paper also examines the new tropical operations for building up
the systems of tropical cryptography.
Auth.
10.B1.36. Measuring the mass of liquid gas in a closed
reservoir. /Z.
Azmaipharashvili,
The system of measuring the mass of liquid
gas and the algorithm of its performance are discussed. The system enables to
measure the mass of liquid gases by means of electromagnetic waves raised by
the resonator put in a reservoir. The system has high precision of measuring
and is distinguished by simple design. The high precision of measuring is ensured
by the type of a resonator and the microprocessor in which three own
frequencies of a resonator are fixed and the algorithm of measuring the mass of
liquid gas is realized.
Auth.
10.B1.37. Analytical representation of volt-ampere
characteristics of the welding machine. /A. Sulamanidze, Z. Sabashvili, Z.
Mchedlishvili, A. Gordeziani, N. Kodua, N. Kenchiashvili, T. Besiashvili/.
Georgian Engineering News. – 2012. – #3. – pp. 49-51. – geo.; abs.: eng.
Based on the experimental research data, a
mathematical analysis of external volt-ampere characteristics of the supply
source designed for condenser cells of different capacity was performed. For
this purpose, we used the expansion of the function into Fourier series, with
the help of which the analytical representations of function u=f(I) were
obtained. These representations allow us calculate theoretically the current
intensity value needed for welding.
Auth.
10.B1.38. Magnetization during finite
radio-frequency impulses in magnetic-resonance imaging. /K.
Kotetishvili, K. Kapanadze, G. Chikhladze/. Nano
Studies. – 2012. – #5. – pp. 41-44. – eng.
At magnetic-resonance imaging
(MRI), multi-echo signals are formed due to influence the distant dipole field
(DDF), as well as the transversal T2-relaxation of the
magnetization. This magnetization process is investigated. Analytical
expressions for the magnetization revealing creation of de-phasing of the
signal at multi-echo series of constant π-signals are obtained.
Auth.
10.B1.39.
The effect of radio-frequency impulses at transversal and
longitudinal magnetization caused by far dipole field. /K. Kotetisvili, K. Kapanadze/. Nano Studies. – 2012. – #5. – pp. 45-46. – eng.
It is known that the influence of
a dipole magnetic field causes formation of the multi-echo signal. The
radio-frequency impulses of the mentioned signal, in turn, affect the
transversal and longitudinal magnetization due to the transversal relaxation.
The effect of radio-frequency impulses on magnetization is analyzed and the results
of the dipole field influence are presented.
Auth.
10.B1.40. Isochronous annealing of n-Si
samples irradiated with 25 MeV energy protons. /T.
Pagava, M. Beridze, N. Maisuradze/. Nano Studies. – 2012. – #5. – pp. 47-54. – rus.
There are experimentally
studied the Hall-effect
in
proton-irradiated n-Si
single crystals
with the initial
concentration of
conduction electrons of 6*1013 cm-3. Irradiation
with protons
of energy
25 MeV is shown to lead to an anomalous increase in the electrons
mobility due to the
formation of
metallic inclusions in the crystal with Ohm interfaces with
the
semiconductor matrix.
Isochronous
annealing forms
a shell
of negatively
charged acceptor
radiation
defects around these metallic inclusions, which are non-transparent for
conducting
electrons, resulting
in a sharp decrease
in mobility. Oscillatory
dependence of
the mobility on the
annealing temperature is explained by the change in a degree of shielding
of metallic
inclusions by the negatively
charged shells.
Clusters of
interstitial
atoms (metallic
inclusions)
are annealed
at 400oC.
Auth.
10.B1.41.
On theory of doping in nanosized crystallographic voids. /L.
Chkhartishvili/. Nano Studies. – 2012. – #5. – pp. 73-84. – eng.
A realistic model allowing calculation of the
binding energy of dopant atoms localized in nanosized crystallographic voids of a semiconductor
lattice and their electron energy levels is constructed.
Auth.
10.B1.42. Evaluation of influence of various factors on
magneto-optical properties of the ultrafine medium by statistical method. /L. Kalandadze/. Nano Studies. – 2012. – #5. – pp. 85-88. – rus.
The effect of the dielectric
permittivity ε0 on the magneto-optical properties
of the magnetic ultrafine structures has been evaluated for the case of
magnetite magnetic fluids. Calculations performed using the correlation analyses
method showed that the effect of ε0 on the equatorial Kerr effect frequency
dependences is of 37%. It should be emphasized that this result will be also
valid for any magnetic ultrafine medium, the optical constants of which nm and km hold the condition km2<<nm2. Besides, this result together
with the concentration factor of magnetic structures gives a really good opportunity
to predict the magneto-optical properties of the ultrafine
medium and, therefore, to obtain such media with desirable parameters.
Auth.
10.B1.43.
Exact equations for correlation functions of a subsystem interacting with a
thermostat and their applications in the linear transport theory of polarons. /B. Kotia/. Nano Studies. – 2012. – #5. – pp. 103-116. – rus.
New exact quantum evolutional
equations for equilibrium double-time correlation functions (Green functions)
of a small subsystem, interacting with a thermostat (boson field) are derived
with the help of Lowville super-operator formalism and by the method of
projection operator. The random-phase-approximation (RPA) is not used at the
derivation of these equations. As an application, electron-phonon system and
Froehlich polaron model is considered. On the basis of Kubo linear response
theory the consistent theory of electrical conductivity is developed.
Analytical expressions for the conductivity tensor and mobility along the all
range of low temperature and frequencies of external electric field are
obtained. In these models, also obtained are temperature-corrections to
electrical conductivity (mobility) conditioned by accounting initial
correlations of electrons with phonons. A correct expression for
low-temperature mobility of Froehlich polaron, analysis of which by different
methods leads to different results is obtained.
Auth.
10.B1.44. Exciton-plasmon resonance in semiconductor ultrathin layers. /Z. Jibuti,
Exciton-plasmon
resonance in ultrathin
layers of n-Ge
doped with shallow donors (As and Sb) was studied experimentally.
Auth.
10.B1.45. Magnetic phase diagram of a spin antiferromagnetic S=1/2 ladder with
alternating rung exchange and dimerized legs. /N.
Avalishvili, G. Japaridze/. Nano Studies. – 2012. – #6. – pp. 85-92. – eng.
The effect of leg dimerization on
the ground-state magnetic phase diagram of a two-leg spin S=1/2 ladder with alternating rung
exchange is studied. Two possible patterns for dimmers distribution along the
legs
corresponding to the checkerboard and columnar structure are considered. A
system in the limit of strong rung exchange and magnetic field and mapping the
model onto the effective spin τ=1/2 chain model is considered and the
continuum-limit bosonization approach used by the latter is studied. Four
quantum phase transitions and corresponding critical magnetic fields, which
mark transitions from the spin gapped regimes into the gapless quantum
spin-liquid regimes are identified. In the gapped phases the magnetization
curve of the system shows plateaus at magnetizations equal to zero, its saturation
value M = Msat and at M = Msat/2. It is shown that in the
case of a checkerboard structure the intra-leg dimerization has no effect on
the ground state properties of the system, while the columnar pattern leads to
renormalization of the critical fields, in particular to extension of the
gapped phases and respectively of the magnetization plateaus.
Auth.
10.B1.46.
Peculiarities of the nanosized lepidocrocite
and magnetite structures forming on the steel surface
in the open-air system. /O. Lavrynenko, S. Netreba,
P. Kosorukov/. Nano
Studies. – 2012. – #6. – pp. 93-100. – eng.
The process of obtaining nanosized
phases (Green Rust, lepidocrocite and magnetite) on the steel surface when it contacts
with water dispersion media and air oxygen is studied. Studied are the kinetic
regularities of the formation of iron oxygen structures depending on the
temperature, pH value of the dispersion media contacting with the steel surface
and concentration of ferric and ferrous iron built for such a system. The
optimum conditions for the formation of lepidocrocite γ-FeOOH are the
temperature from 3 to 10oC and pH value of 1.5. The most favorable
conditions for magnetite FeFe2O4 formation are T ~ 50oC and the circumneutral
medium.
Auth.
10.B2.1. Radiation
resistant materials.
/N. Kekelidze/. Modern Technologies and Methods of Inorganic Materials
Science. Proceedings of International Conference. – 2012. – pp. 177-187. – rus.; abs.: geo., eng., rus.
A
new concept and new technology were developed and radiation-resistant
high-effective electronic materials were created, in which the electrical and optical
parameters do not considerably change even under irradiation by high fluxes of
fast neutrons and electrons (Ô ≥1018 particles/cm2).
Auth.
10.B2.2. 10B-based
materials for neutron-shielding. /L. Chkhartishvili, O. Tsagareishvili, D.
Gabunia/. Modern Technologies and Methods of Inorganic Materials Science.
Proceedings of International Conference. – 2012. – pp. 188-202. – eng.; abs.: geo., eng., rus.
Utilizing
structural models, the maximum possible concentration of isotope 10B
in crystalline, amorphous and nanostructured modifications of elemental boron,
as well as in some boron compounds has been calculated. It is concluded that
adequate neutron-protection is possible to be provided by thin layers of boron
compounds and composites, on condition that the material is enriched with
isotope 10B. The work describes technologies for such dispersed
crystalline powder, which should ensure the formation of high-quality coatings
by the plasma-method.
Auth.
10.B2.3. Corrosion of chromium in ambient CO+CO2
mixtures. /O. Mikadze, A. Kandelaki/. Bulletin of the
The results of an investigation of high-temperature corrosion of
unalloyed chromium and the binary alloy Cr+0.5%Ce in an ambient 75%CO+25%CO2
gas mixture under a pressure of 0.01 atm are presented. It is shown that
cerium additions have a beneficial effect on the oxidation resistance of
chromium.
Auth.
10.B2.4. The
regularities of the electrolytic dissociation of 1,1-cyclopentane and
1,1-cyclohexanedicarboxylic acids. /E.
Kvaratskhelia, R. Kvaratskhelia/. Bulletin of the
The parameters of electrolytic dissociation of 1,1-Cyclopentane and
1,1-Cyclohexanedicarboxylic acids in their dilute (0.0001-0.01M) solutions were
determined with the aid of original accurate and empirical equations suggested
by the authors.
Auth.
10.B2.5. Polyurethanes
on the basis of card-type polycyclic bisphenols and different diisocyanates. /E. Gavashelidze, N. Maisuradze, N. Dokhturishvili, G. Papava, N.
Gelashvili, Z. Molodinashvili, M. Gurgenishvili, I. Chitrekashvili/. Bulletin
of the
Card-type secondary diols are synthesized by means of oxyalkylation of
bisphenols. Linear homogeneous polyurethanes are obtained through interaction
of diols and diisocyanates. Their physical and chemical properties, thermal and
heat-resistance as well as resistance in respect of radiation emanation of
polymeric compositions obtained on their basis are studied.
Auth.
10.B2.6. N-lactosylation
of amino benzoic acids. /R. Kublashvili,
M. Labartkava, K. Giorgadze,
The N-lactosylation of isomeric amino benzoic acids by D-lactose is
studied. N-m- Carboxyphenyl--D-lactosyl amine and N-p-Carboxyphenyl--D-lactosyl amine are synthesized and characterized.
Auth.
10.B2.7. Study of poly[Oxy-1-Carboxy-2-(3,4-Dihydroxyphenyl)
Ethylene] from symphytum asperum, S. caucasicum, S. officinale, Anchusa italica by circular dichroism. /V. Barbakadze, M. Merlani, L. Amiranashvili,
L. Gogilashvili, K. Mulkijanyan/. Bulletin of the
A comparative study of chirality of two carbon atoms
C1 and C2 of poly[oxy-1-carboxy-2- (3,4-dihydroxyphenyl) ethylene] (POCDPE)
preparations from different species of Boraginaceae family - Symphytum
asperum, S. caucasicum, S. officinale, Anchusa italica revealed that they have one and the
same absolute configuration in all preparations. It has been established that
chiral atoms of POCDPE have either (1R,2R) or (1S,2S) configurations
but not (1R,2S) and (1S,2R) configurations and consequently the denomination of the
polymer is poly[oxy-(1R)-1-carboxy-(2R)-2-(3,4-dihydroxyphenyl) ethylene]
or poly[oxy-(1S)-1-carboxy-(2S)-2-(3,4-dihydroxyphenyl)ethylene].
Auth.
10.B2.8. Internal friction in β-rhombohedral boron, doped with cobalt.
/M. Darchiashvili/. Bulletin
of the
In -rhombohedral boron, doped with cobalt, relaxation and
nonrelaxation maxima of the internal friction caused by motion of twinnings boundaries
and stacking faults in planes of {100} system were revealed. Regularities of
changing activation characteristics of relaxation internal friction of β-rhombohedral boron under the influence
of doping with cobalt were established.
Auth.
10.B2.9. Mathematical-chemical investigation of some
straight-chained alkanes. /G. Lekishvili, M. Gverdtsiteli,
A mathematical-chemical
investigation of some straight-chained alkanes was carried out within the scope
of the quasi-ANB-matrices method. Two correlation equations of
“structure-properties” type were constructed. The correlations are
satisfactory.
Auth.
10.B2.10. Thermodynamic analysis of carbothermal reduction
of the mixture of CR2O3 and MnO oxides.
/Z. Tsikaridze,
Complete thermodynamic
analysis of the system Cr-Mn-O-C has been carried out for the following
compositions: Cr2O3 + MnO + 4 C (1), Cr2O3
+ MnO + 5 C (2) and Cr2O3 + MnO + 6 C (3). The basic
results for all compositions are presented as diagrams (dependence of the
contents of components on temperature within the range of 800-2000 K).
Auth.
10.B2.11. Synthesis of some caffeic and
2,3-dihydroxy-3-(3,4-dihydroxyphenyl)-propanoic acid amides. /M. Merlani, V. Barbakadze, L. Amiranashvili, L.
Gogilashvili, K. Mulkijanyan/. Bulletin of
Synthesis of some new
amides of caffeic acid and 2,3-dihydroxy-3-(3,4-dihydroxyphenyl)-propanoic acid
with potential antioxidant activity has been carried out. The structures of
synthesized compounds were established by NMR and IR spectroscopy.
Auth.
10.B2.12. Synthesis
and anomeric composition of n-glycosides of aminobenzoic acid esters. /R. Kublashvili, M.
Labartkava, I. Abdushelishvili, K. Giorgadze,
N-glycosides of amino benzoic acid esters are
synthesized on the basis of aminobenzoic acid esters (2-aminobenzoic acid
methyl ester, 4-aminobenzoic acid butyl ester) and aldoses (D-glucose,
D-galactose, D-mannose, L-rhamnose, D-xylose, L-arabinose). The anomeric and
isomeric composition of synthesized products are identified by method of 13C-NMR.
Auth.
10.B2.13. Analysis of growth and properties of epitaxial
lead selenide layers in the connection of realization of high
"negative" pressure. /A. Pashaev, O.
Davarashvili, M. Enukashvili, R. Gulyaev, M. Dzagania/. Proceedings of the Georgian National Academy of Sciences. Chemical
Series. – 2012. – vol.
38. – #1. – pp. 31-35. – rus. abs.: geo., eng.
For the realization of high
"negative" pressure in the thin epitaxial lead selenide layers is
considered role of layers' thicknesses, dispersion and texture, density of
dislocations in the substrates. Influence of the dispersion is valued over
critical thickness of crystallites, but texture - by displacement of X-ray
difractograms for the layers with different thickness.
Auth.
10.B2.14. The instimation the probability of reduction
of the silica by carbon. /K. Ukleba, A.
Nadiradze, N. Nadiradze/. Proceedings of the
Georgian National Academy of Sciences. Chemical Series. – 2012. – vol. 38. – #1. – pp.
36-40. – rus. abs.: geo., eng.
The thermodynamic analysis of processes
expected is carried out at restoration silica by carbon on which bases the opinion
that the most perspective can be considered a two-stage restoration by carbon:
the first stage – incomplete restoration of SiO2 on reaction: SiO2(s)+C(s)=
SiO(g)+CO(g), the second – reaction in a gas phase: SiO(g)+CO(g)=
Si(s)+CO2(g).
Auth.
10.B2.15. Thermodynamic
analysis of the system AL-TI-O-C. /J. Bagdavadze, Z.
Tsikaridze, K. Ukleba/. Proceedings of the
Georgian National Academy of Sciences. Chemical Series. – 2012. – vol. 38. – #1. – pp.
41-45. – rus. abs.: geo., eng.
Complete thermodynamic analysis of the system Al-Ti-O-C has been carried out for
the following structures: 1. Al-64 mass %; TiO2 -22 mass %; C -14
mass %; 2. Al-76 mass %; TiO2 -19 mass %; C -5 mass %; 3. Al-32 mass
%; TiO2 -59 mass %; C -9 mass %. The basic results for all structures
are presented in the form of diagrams (dependence of the contents of components
at the temperature range 800-2000 K).
Auth.
10.B2.16. Quantum-chemical study of substitutes effect on
the tautomeric transformation of derivatives of acetophenone. /T. Kuchukhidze, J.
Kereselidze, M. Kvaraia, Z. Pachulia/. Proceedings of the Georgian National Academy of Sciences. Chemical
Series. – 2012. – vol.
38. – #1. – pp. 46-48. – rus. abs.: geo., eng.
The energetic and kinetic characteristics of
the tautomeric transformation of acetophenone derivatives by means of
quantum-chemical DFT (Density Function Theory) method are calculated. It is
shown that the electron donor substitutes promote and electron acceptor
substitutes hinder the tautomeric transformation.
Auth.
10.B2.17. Physical aspects of production of some diamond
composite materials. /
The work refers to the field of physics and
chemistry of production of diamond composite materials under conditions of high
pressure and temperature. The experimental data on kinetics of hard phase
interaction in diamond-titanium and graphite-titanium systems at pressures
(2.55-7.7) 109 Pa and in vacuum are presented. On the basis of the
obtained results the mechanism of carbon atoms migration and the role of high
pressure on this process are determined.
Auth.
10.B2.18. Ulltradisperse composite powder on graphite
basis for absorbtion of electromagnetic waves. /Z. Okrostsvaridze,
T. Baysikadze, I. Kakhniashvili, L. Chkhikvadze,
The work describes the process of adsorption
of electromagnetic waves by nickel-plated carbon powder. Nickel plating of
carbon powder has been realized by hydrometallurgical method. The nanocrystal structure
with crystal size in the 800-1200Å range of nickel plated layer has been
determined by (transmission) electron microscopy on transparency. The
nanocrystal structure of the plated layer causes an increase in the concentration
of vacancies up to concentration of vacancies - C≥10-4 before
the melting of metal. A scheme of crosscut of plated layer has been drawn based
on the research. According to this scheme, partial absorption of
electromagnetic waves is realized. Structural defects – vacancies are involved
in these effects. The final absorption of electromagnetic waves in the
centimeter range takes place on 30° glided planes of disoriented graphite
powder.
Auth.
10.B2.19. Adsorbents
prepared on the basis of volcanic slag of Georgian origin.
/T. Kvernadze,
N. Osipova, I. Karalashvili, N. Klarjeishvili, M. Burjanadze, S. Urotadze, V.
Tsitsishvili/. Proceedings of the Georgian
National Academy of Sciences. Chemical Series. – 2012. – vol. 38. – #1. – pp.
97-100. – rus. abs.: geo., eng.
On the basis of the volcanic slag of the
Georgian origin, methods of preparation of adsorbents have been developed; as a
result of the investigation, it can be supposed that the obtained adsorbents
might be used as chromatographic column packing material for controlling the
degree of contamination of Freon oils (used in refrigerating equipments).
Inexpensiveness of the obtained adsorbents results from the low price of their
main component, mineral material – volcanic slag, which abound in
Auth.
10.B2.20. The effect of latent curing agent on the
physical-mechanical properties of stirol-butadien rubbers. /M. Shalamberidze,
The article deals with the results of the
effect of latent curing
agent on the
physical-mechanical properties of stirol-butadien rubbers SKS-30, ÀÐÊ and
ÀÐÊÌ-15. It is experimentally proved that the latent hardener LÎ-2 essentially
influences the physical-mechanical property of rubbers which is the optimum
value of
5.3
parts by weight
hardener
per 100
parts by weight
polymer.
Auth.
10.B2.21. The effect of biosurfactants on the synthesis and
stability of cellulases. /L. Kutateladze,
T. Urushadze, R. Khvedelidze, T. Aleksidze/. Proceedings of the Georgian Academy of Sciences.
Biological Series B. – 2011. – vol. 9. – #1-4. – pp. 16-19. – eng.;
abs.:
geo.,
eng.
The cellulase producer thermophilic strain – Aspergillus
versicolor J1-5 was
selected from the collection of micromycetes of Durmishidze Institute of
Biochemistry and Biotechnology. The temperature and pH optimums of cellulolytic
preparation of Aspergillus versicolor J1-5 were established. The effect of biosurfactants (ramnolipid
– S1, biocomplex – S2, trehalolipid – S3) on the synthesis of microbial
cellulases, their enzymatic activity, thermostability was studied. Enrichment
of nutrient medium with 0.01% of biosurfactant (S2) caused enhancement of
cellulolytic activity by 60%. Supplying of incubation medium with surfactants
did not cause significant change in enzyme activity. After adding the
biosurfactants stability of enzyme increased by 28%. Influence of
biosurfactants on enzyme ability to deep hydrolysis of cellulose containing
substrate (filter paper) forming low molecular reducing sugars, including
glucose, has been investigated.
Auth.
10.B2.22. Investigation of desorption of a porous hybrid
amide polymer saturated with light oil fractions. /K. Papava, N. Gelashvili,
Z. Molodinashvili, N. Khetsuriani, N. Dokhturishvili, N. Maisuradze, V. Sherozia/.
Georgian Engineering News. – 2012. – #3. – pp. 95-96. – eng.; abs.: rus.
Based on amide-type oligomers and modified
natural mineral sorbents, porous hybrid polymers of a new type were obtained.
The obtained polymers are characterized by high sorption ability and by the
capability of floating with adsorbed substances on the water surface. They can
be removed together with adsorbed oil products from the water surface
mechanically. The porous hybrid polymers of a new type are characterized by
high selectivity, refractoriness and the ability of changing their properties
in a wide range depending on the structure and proportion of initial
substances. The sorbents obtained after desorption are characterized by the
ability of regeneration, which provides for their reusability.
Auth.
10.B2.23. Physicochemical properties of
the FeFe2O4&Ag0 nanocomposites formed on the steel surface contacting with AgNO3
water solutions in open-air system. /O.
Lavrynenko/. Nano Studies. – 2012. – #5. – pp. 27-40. – eng.
The
process of forming simple core & shell composites including iron oxide core
and argentum shell on the steel surface contacting with AgNO3 water
solution in open-air system is shown. The phase and chemical composition of
FeFe2O4&Ag0 structures, their particle
size, aggregative and sedimentation stability, magnetic properties, etc. are
defined by the pH values and initial argentum concentration in the dispersion
medium. The mechanism of the core and shell composites formation is realized
through the electrochemical process on the steel surface, collection of ferric
and ferrous cations, hydroxyl and carbonates in the steel-water-air interface,
formation of strong reducing phases (in particular, Green Rust) and their
interaction with argentum from solution. The core and shell composites due to
their antioxidant activity, magnetic and optical properties are useful for
medical-biological application.
Auth.
10.B2.24. Regular gratings and threads of
metal nanoparticles in zeolite channels. /A. Kapanadze, G. Rtveliashvili, G. Tabatadze/. Nano
Studies. – 2012. – #5. – pp. 55-56.
– rus.
Based on experiments, it is shown that introducing the liquid
metals into zeolite (NaX, NaA and NaM) channels under the pressure becomes it possible to obtain regular
gratings composed of 10 – 20 atoms and single-atomic
“threads”.
Auth.
10.B2.25. Optical and surface properties
of boron nitride compounds obtained in an optical furnace without catalysts. /L. Sartinska, A. Frolov, A. Andreeva,
Y. Voynich, A. Kasumov, G. Frolov, V. Tinkov, V. Stonis/. Nano Studies. – 2012. – #5. – pp. 89-102. – rus.
A process which takes place during
heating in the focal zone of the high power optical furnace in a steady flow of
nitrogen was investigated. It was shown that the transformation of
graphite-like h-BN nanotubes initiates formation of whiskers (threads) around
the crater and the drops on the surface of the sample. Whiskers (threads) have
increased nitrogen content in central part of their length. The drops and
whiskers at the beginning and the end of their length have high content of
boron and oxygen. It was confirmed that the movement of oxygen is the main
driving force which promotes the formation of thread-like structures. It was
demonstrated that the powder material deposited on the surface which is removed
from the crater have an increased boron content, consists of thread-like structures
– nanotubes and whiskers (threads), equiaxed nanosized crystallites, some
crystals of h-BN and tetragonal phases B25N and B51N2,
and amorphous boron nitride. For this material it was identified band gaps:
3.5, 3.8 and 4.8 eV, which correspond to the phases of tetragonal B51N2
and B25N, and hexagonal BN, respectively. The method of Auger
electron spectroscopy can be used for preliminary evaluation of powder
material, because it shows the difference in the electronic structures of pure
elements and their compounds.
Auth.
10.B2.26.
Electrophysical properties of dysprosium monoantimonide. /Z. Jabua, I. Kupreishvili, A. Gigineishvili,
G. Iluridze, I. Tabatadze/. Nano Studies. – 2012. – #5. – pp. 117-120. – eng.
Rare earth monoantimonides are of interest
since they are able to provide super low temperatures through adiabatic
demagnetization. Besides, monoantimonides of the rare earth elements represent
unique compounds, which along with high melting temperature enabling their use
at a wide temperature interval show a number of effects characteristic only for
this class of alloys. For the first time, a technology for preparation the DySb
thin films, powders, ceramics and single-crystals has been developed. The X-ray
and electronographical analyses of the obtained samples were carried out. For
DySb thin films and single-crystals, the temperature-dependence of the
resistivity and Hall constant were measured in the temperature range from 95 to
700 K. On the basis of these measurements, the basic electro-physical
parameters, like carriers’ mobility and concentration, were assessed in a
single-band approximation.
Auth.
10.B2.27.
Synthesis of gold and silver nanoparticles by some microorganisms. /T. Kalabegishvili, I. Murusidze,
E. Kirkesali, A. Rcheulishvili, E. Ginturi, E. Gelagutashvili,
N. Kuchava, N. Bagdavadze, D. Pataraia, M. Gurielidze, G.
Tsertsvadze, V. Gabunia/. Nano Studies. – 2012. – #6. – pp. 5-14. – eng.
Several
bacterial strains of actinomycetes as well as blue-green algae Spirulina platensis were used in the studies aimed at developing of biotechnology of microbial
synthesis of gold and silver nanoparticles. The nanoparticle formation time and
concentration conditions were studied for all the examined strains
of bacteria. A complex of analytical and spectral methods – UV-visible
spectrometry, X-ray diffraction (XRD), transmission electron microscopy
(TEM), scanning electron microscopy (SEM) with energy-dispersive analysis of
X-ray (EDAX), equilibrium dialysis, neutron activation analysis (NAA), and
atomic absorption spectrometry (AAS) – has been applied for examining of the
obtained nanoparticles. A single
peak observed in the all UV absorption spectra evidences for the spherical
shape of the produced gold and silver nanoparticles, which is confirmed by TEM
images. In all the TEM images the diffraction patterns correspond to the face
centered cubic (FCC) structure of gold and silver nanoparticles. The histograms
of particle sizes for studied samples show that the sizes of gold and silver
nanoparticles are in the range of 5 to 80 nm, with the average at 20 – 25 nm. The data
obtained by NAA and AAS illustrates that the total concentrations of gold and
silver in the samples at first increase rapidly (in adsorption processes on
the cell walls) and then does not change significantly. The
results of the performed investigations show that the examined microorganisms
exposed to relevant compounds are capable of producing gold and silver
nanoparticles of spherical shape extracellularly.
Auth.
10.B2.28. Short dictionary (glossary) on nanochemistry
and nanotechnology terms. Part II. /Ts. Ramishvili/.
Nano Studies. – 2012. – #6. – pp. 15-54. – eng.
The
second part of
the short dictionary contains over 100 terms in Georgian focused on general
issues and topics of
nanochemistry and nanotechnology, as well on the synthesis of nanosystems. The
table lists some of such terms in English, German, and Russian taken from
dictionaries and scientific periodicals in chemistry and the corresponding
terms in Georgian with appropriate definitions.
Auth.
10.B2.29. Correlation between surface
specific area and particles average size: hexagonal boron nitride nano-powders. /L. Chkhartishvili/. Nano Studies. – 2012. – #6. – pp. 65-76. – eng.
A morphology model for
nano-powdered hexagonal boron nitride h-BN that can serve as an effective
solid-additive to liquid lubricant materials is suggested. The model allows
estimating of the surface specific area, the hard-to-measure morphology
parameter according to the average size of powder particles.
Auth.
10.B2.30. X-ray study of γ-Mo2N
nanostructured coatings synthesized by vacuum-arc method. /V. Shulayev, Z. Kolupaeva/.
Nano Studies. – 2012. – #6. – pp. 77-84. – rus.
There is
performed the X-ray diffraction analysis
of nanocrystalline states in g-Mo2N coatings synthesized
by the low-energy influence on
the coating
deposition front. Constant
negative bias
potential applied
to the substrate
was 30V.
Nanostructured
coatings
have
an amorphous-crystalline
structure. The
average size of
coherent scattering was about 6nm. The hardness of these coatings
was over 60GPa.
In the
coatings,
high
residual
compressive macro-stresses
are formed. During
the molybdenum nitride
coatings
synthesis
by using constant
negative
potential bias,
the suppression
of
macro-particles’ capture was detected.
Auth.
10.B2.31. Preparation of silver
nanoparticles from silver nitrate using hydroquinone. /T. Pavliashvili, T.
Kalabegishvili,
Silver nanoparticles were obtained
from an aqueous solution of a nitrate. Hydroquinone was used as a reducing
agent. The synthesized nanoparticles were subjected to microwave treatment. The
process of the silver nanoparticles formation was studied by the method of
electron microscopy. The obtained nanoparticles were of a spherical shape and a
narrow range of size distribution.
Auth.
10.B2.32. Pyrolytic growth of
one-dimensional oxide and nitride nanomaterials. /D.
Jishiashvili, L. Kiria, Z. Shiolashvili, N. Makhatadze, E. Miminoshvili, A.
Jishiashvili, D. Sukhanov/. Nano Studies. – 2012. – #6. – pp. 115-120. – eng.
The purpose of the work was to
grow the 1D nanomaterials at relatively low temperatures, not exceeding 580 oC using the pyrolysis of hydrazine.
Auth.
10.B2.33. Separation of D-mannose-specific lectin from aloe
leaves and investigation of their physical-chemical properties. /N. Mghebrishvili, M. Vakhania, G. Aleksidze,
Biologically active D-mannose-specific lectin (AML) was separated
from juvenile and aged areas of aloe leaves and their physical-chemical and
biochemical properties were studied.
Auth.
10.B2.34. The chestnut-tree (Castanea sativa Mill) yield in Batsari preserve depending on age. /T. Khokhobashvili/. Mecniereba da technologiebi. – 2011. – #4-6. – pp.
83-84. – geo.; abs.: eng., rus.
The
article deals with chestnut yield dependence on the age. The study was carried
out in the Batsari preserve (Akhmeta district). Rather interesting results
about the yearly yield were obtained. According to these data, the yearly
chestnut yield exceeds 1000 tons.
Auth.
10.B2.35. Bio-ecological
peculiarities of introduced ornamental plants in
The view of green infrastructure of the Black Sea
coast in
Auth.
10.B2.36. The results of introduction of some Red List Georgian
species in the
The paper discusses the
results of introduction of some Georgian Red List species in the National
Botanical Garden of Georgia (NBGG) viz.: Pterocarya
pterocarpa (Michx) Kunth ex I. Iljinsk, Acer
ibericum Bieb., Juniperus
foetidissima Willd., Berberis iberica
Stev.& Fisch. ex DC., Salvia
garedji Troitzk., Pistacia mutica Fisch.
&
Auth.
10.B2.37. Isolation, purification and biochemical
characterization of N-Acetyl-D-glucosamine specific lectin from the root of
aloe (A. aristata).
/M. Vakhania, G. Aleksidze,
N-acetyl-D-glucosamine
specific lectin was isolated from the root and bulb of Aloe aristata. Its extraction conditions were established. Lectin
characteristics were studied on the rabbit’s trypsinized as well as
non-trypsinized erythrocytes. The effect of temperature on lectin activity of
the aloe root was investigated.
Auth.
10.B2.38. Inhibitory effect of proanthocyanidin preparation
from tea leaves on tea leaf phenoloxidase activity. /N.
Mchedlishvili, N. Omiadze, K. Akhvlediani, M. Abutidze, L. Gulua, N. Pruidze/.
Proceedings of the Georgian Academy of Sciences.
Biological Series B. – 2011. – vol. 9. – #1-4. – pp. 1-5. – eng.;
abs.: geo.,
eng.
The effect of the preparation of
proanthocyanidins isolated from leaves of green tea (Camellia sinensis L.) on the activity of tea leaf
phenoloxidase has been studied. The preparation of proanthocyanidins from tea
leaves has been shown to be effective natural inhibitor of tea leaf
phenoloxidase. At about 0.025mg/ml concentration of the inhibitor 50% inhibition
was observed. The addition of the natural inhibitor caused deviation of the
kinetics of the enzyme from classical kinetics. The natural inhibitor decreased
Vmax of phenolxidase 2.5–fold. The enzyme showed positive cooperativity. The
Hill coefficient nH was found to be 0.63. The inhibition of tea leaf
phenoloxidase by the natural inhibitor from tea leaves was non-competitive.
Auth.
10.B2.39. Study of physical properties of smitin
isolated from smooth muscle and comparative analysis with the same properties
of titin. /R. Kupatadze, K. Kuridze, M. Devdariani, N.
Gachechiladze, L. Sulamanidze, I. Ioramashvili, J. Gogorishvili, M. Zaalishvili/.
Proceedings of the Georgian Academy of Sciences. Biological Series B. – 2011. – vol. 9. – #1-4. – pp. 6-11. – eng.;
abs.: geo.,
eng.
The aim of the work was the obtaining and
purification of native form of smitin (ctitin) from smooth muscle. Its physical
parameters - molecular weight, characteristic viscosity and sedimentation
coefficient, were determined. A comparative analysis with corresponding parameters
of titin obtained from chicken striated muscles was carried out.
Auth.
10.B2.40. Study
of topinambur (Helianthus tuberosus l.) for
producing a functional food additive. /N. Aroshidze, N. Omiadze, N. Mchedlishvili, M. Abutidze, G.
Kvesitadze/. Proceedings of the Georgian
Academy of Sciences. Biological Series B. – 2011. – vol. 9. – #1-4.
– pp. 12-15. – eng.; abs.: geo., eng.
The topinambour plant (earth apple)
introduced to
Auth.
10.B2.41. Morphological
relationships between wild and cultivated pears in
214 individuals of 26 local, 9 introduced
pear cultivars and 3 wild progenitor species of cultivated pear: Pyrus
caucasica Fed.; P.
balansae Decne. and P.
pyraster (L.) Burgsd. have
been evaluated by 27 morphological characters. 6 quantitative and 6 qualitative
leaf and young shoot and 14 qualitative fruit descriptors have been used in
multivariate statistical analysis. Leaf blade form has been analyzed using
Fourier's outline shape analysis method measuring 20 harmonics per leaf and 10
leaves per individual. 6 Principal Components have been used in Hierarchical
Cluster Analysis and revealed close Euclidean similarity distances between 15
Georgian aboriginal pear cultivars and two wild species: P. caucasica (endemic of the Caucasus) and P.
balansae (wild species native
for Georgia). European wild pear - P. pyraster, was clustered with 9
introduced and 11 Georgian pear cultivars. The results of this study have shown
that some local pear cultivars of
Auth.
10.B2.42. Natural
feather grass steppes (Stipetum pennatae)
on the territory of the
The structure of feather grass community (Stipetum pennatae) spread wildly in the
National Botanical Garden of Georgia (
Auth.
10.B2.43. The effect
of temperature on seed germination of Arbutus andrachne L. /N.
Shakarishvili, L. Asieshvili, N. Eradze, M. Siradze/. Proceedings of the Georgian Academy of Sciences.
Biological Series B. – 2011. – vol. 9. – #1-4. – pp. 37-42. – eng.;
abs.: geo., eng.
Greek strawberry tree – Arbutus andrachne L. (Ericaceae) is species native to the Mediterranean region, The Middle
East and south-western
Auth.
10.B2.44. The
abundance and diversity of Vibrio species
not pathogenic to humans in the Georgian aquatic environment. /N.
Mitaishvili, A. Tskhvediani, T. Elbakidze, T. Kokashvili, G. Natroshvili, G.
Kajaia, M. Tediashvili/. Proceedings of
the Georgian Academy of Sciences. Biological Series B. – 2011. – vol. 9. – #1-4.
– pp. 43-49. – eng.; abs.: geo., eng.
The diversity, quantitative abundance and
seasonal distribution of Vibrio species
not pathogenic to humans in the Georgian aquatic environment have been studied.
The samples were collected in 2006-2009 in the Black Sea coastal zone and
freshwater reservoirs nearby
Auth.
10.B2.45. Use of
encyrtid (Hymenoptera: Chalcidoidea,
Encyrtidae) fauna to estimate the possible number of scale (Hemiptera: Coccoidea) fauna in
Encyrtid species collected by malaise
trapping in
Auth.
10.B2.46. A
preliminary study of the carabid diversity and composition in
Carabid diversity was investigated at
Borjomi-Kharagauli National Park (BKNP), Georgia. The study area was divided
into five sampling sites with different plant associations representing all
main habitat types of BKNP: The mesophilic valley in Baniskhevi; Kvabiskhevi,
in this dry valley habitat the influence of the western humid climate is minor;
Likani 1, coniferous forest; Likani 2, mixed forest and Bairagebis seri,
sub-alpine meadow. Twenty seven species were recorded during the survey.
Carabids were most abundant at a site Bairagebis seri, featuring with high
diversity of herbs. Forty seven percent of all sampled individuals were found
there. The study revealed that this site provided special micro-habitats for
Carabidae fauna. Nineteen species were recorded only at one site. Carabus
armeniacus, C. ibericus, C.
puschkini, C. septemcarinatus and Cychrus aeneus were identified as indicator
species. The abundance of carabid species differed significantly among some
studied habitats.
Auth.
10.B2.47. The
flora and vegetation of
The
full sections of Sarmatian deposits of
Auth.
10.B2.48. Dynamics of diversity of Neogenic vertebrates in Kakheti (
Fauna
of fossil vertebrates plays a decisive role in the matter of establishing
geological age of continental sediments and comparison of sediments of corresponding
age of adjacent regions. Paleontological material gives us indisputable
opportunity to follow evolution of paleogeographic picture of past and separate
corresponding stages of environment changes. It is also clear, that number of
theoretical and practical issues of evolution is clarified on the ground of
paleontological investigations. Unfortunately,
Auth.
10.B2.49. Determination of the cytotoxicity of chitinbinding mistletoe (Viscum
album l.) fruit lectin (MChbl) on human peripheral blood
lymphocytes. /N.
Gachechiladze,
The in vitro effects of chitin-binding
mistletoe lectin MChbL on human peripheral blood cells have been investigated.
MChbL inhibited proliferation of PBL cells at concentration of 500 μg/ml
and showed cytotoxic effects. Low concentrations of MChbL were less cytotoxic
to peripheral blood cells and exhibit similar results as ConA at the
concentration of 1μg/ml. Application of mistletoe lectin as natural
biopesticide at dose-dependent manner is discussed.
Auth.
10.B2.50. Fruit
trees of Svaneti (North-Western Georgia). /E. Baiashvili/. Proceedings of the Georgian Academy of Sciences.
Biological Series B. – 2011. – vol. 9. – #1-4. – pp. 89-91. – eng.; abs.: geo., eng.
The article demonstrates material on fruit
tree diversity described during field expeditions in Svaneti. The list and
distribution of aboriginal cultivars are presented. The role of folk selection
works in development of local populations is described. The domestication of
native wild progenitor species is discussed.
Auth.
10.B2.51. Galanthus caucasicus – the source of cytotoxic alkaloids. /M. Jokhadze, J. Kuchukhidze, D. Chincharadze, T. Murtazashvili, D.
Berashvili/.
The MTT test was initially performed with the
alkaloids for the determination of the IC50 (a concentration which
allows the death of 50% of the treated cells), establishing the starting point
for the next experiments, this procedure had to be adopted because there are no
previous studies with these substances. The bulbs of dried Galanthus
caucasicus were extracted
with 95% EtOH. The advantages of this extractive method are a more complete
extraction of all classes of metabolites including acidic and basic compounds
and a better fractionation of metabolites that are obtained partially separated
in three early fractions. All compounds were first assayed and only the active
extracts were submitted to further fractionation. All the fractions from each
step of the purification procedure were assayed for brine shrimp lethality and
the active ones were further fractionated and purified using different methods
to obtain pure active compounds. Lycorine (IC50 4.5±0.05 mg/ml),
haemantaimene (IC50 9.5±0.08 mg/ml), pluvine (IC50
11.3±0.1 mg/ml) and narwedine (IC50 15.7±0.12 mg/ml) were found to
be responsible for the activity.
Auth.
10.B3.1. “Arkosic sandstones” new interpretation of
the Kakheti segment of the Great
The field-geological, petrographical, petrochemical,
geochemical and mineralogical researches carried out by us in Kakheti segment
of the southern slope of the Great Caucasus showed that so called
coarse-grained “Arkosic sandstones” of Stori suite which have been singled out
here actually represent frontal, fractionated quartz-feldspathic felsitic
formations of powerful plutonic activity, which in the form of hypabyssal melts
and hydrotherms were intruded into thick series of intensively tectonized
liassic clay-shales and in the form of hypabyssal dikes along the fault zones
and fractures caused partial assimilation of inclosing rocks, intensive
hydrothermal alteration, silicification and ore mineralization. The results
obtained by us fundamentally change the existing scheme of geological structure
of Kakheti segment of the Southern slope of the Great Caucasus, and makes it
necessary to develop a new model of its petrogenic and metallogenic evolution,
by means of which in the future mineral resource new prospecting criteria will
be determined in the region.
Auth.
10.B3.2. Ramp structure of Tsivgombori (Kakheti) range
and its parakinematic relation to Alazan Depression. /L. Basheleishvili, M. Kumelashvili, T. Razmadze/. Mining Journal. –
2012. – #1(28). – pp. 23-26. – geo.; abs.: rus., eng.
When deciphered the structural plan of the
Tsivgombori range, its ramp-like structure was outlined. In our case, growing
of ramp anticline took place at the expense of thrusting along the sub
horizontal over thrust in the crystalline basement where on the fracture
section of the detachment overgrowth of anticline is observed. This event, to
our mind, is tightly connected with the formation of the Alazani superimposed
basin. Both these structures represent a parakinematic unit. Their formation in
time is closely interrelated.
Auth.
10.B3.3. The Georgian oil and gas reserves by new
classification. /G. Tabatadze, K. Koiava, N.
Maisuradze,
The modern classification of oil and gas reserves
has considerably changed existing in
Auth.
10.B3.4. On the expedience of increasing extraction and
reproduction intensity of Paravani perlite deposits. /V. Lortkipanidze, G. Kapanadze, G. Tkhelidze/. Mining Journal. –
2012. – #1(28). – pp. 30-33. – geo.; abs.: rus., eng.
Basic components of perlite, as well as
useful qualities of foamed perlite allowing its successful application in
various fields of industry and agriculture are given. A process of producing
the foamed perlite and the factors affecting the process are described. A brief
geological characteristic of the Paravani perlite deposit in
Auth.
10.B3.5. Tectonic and metallogenic features of the
Mediterranean-Himalayan folded system. /V. Nadiradze/. Mining
Journal. – 2012. – #1(28). – pp. 34-39. – geo.; abs.: rus., eng.
The tectonic development of the
Auth.
10.B3.6. Petrology and physical-mechanical properties
of Vertkvichala and Chalvani gabbroid bodies. /T. Gorgidze/. Mining
Journal. – 2012. – #1(28). – pp. 40-42. – geo.; abs.: rus., eng.
The article considers the mineral
composition, petrology and physical-mechanical properties of Dziruli
crystalline core-area (mass), Vertkvichala and Chalvani gabbroid bodies. The
gabbroid body of the village Vertkvichala is represented by normal gabbro and
bojite (hornblende gabbro), whereas Chalvani intrusive body is represented by
bojite (hornblende gabbro). According to the study of physical-mechanical
properties and based on the obtained results, gabbro intrusive bodies can be
used as a good facing material.
Auth.
10.B3.7.
Mining and specifications of
development of disturbed coal seams of Tkibuli-Shaori deposit by mechanized
systems. /Z. Gordeziani,
It is shown that in order to improve the
operational efficiency of mechanized systems in the development of disturbed
strata attention should be focused on prediction of individual tectonic
discontinuities in order to avoid a surprise breakdown. It was established that
all the indicators related to the tectonics of the Tkibuli-Shaori deposit,
which determine the technical and economic characteristics of the mechanized
systems, confirm the appropriateness of their use on Tkibuli mines.
Auth.
10.B3.8. Complications observed during drilling into
unstable formations. /G. Varshalomidze,
A. Chichinadze/. Mining
Journal. – 2012. – #1(28). – pp. 77-81. – geo.; abs.: rus., eng.
The main complications accompanying the
process of drilling oil and gas producing wells located within such complicated
areas as mostly observed in the
Auth.
10.B3.9. Paleobiogeographic zoning of the
On the basis of study of the ecology and evolution of Early
Jurassic-Bajocian ammonites of the
Auth.
10.B3.10. Echo of the 2011 great
Introduction of new
sensitive broadband seismographs, new dense seismic networks and new methods of
signal processing has led to the breakthrough in triggering and synchronization
studies and formation of a new important domain of earthquake seismology
related to dynamic triggering of local seismicity by wave trains from remote
strong earthquakes. Considered in the paper are the peculiarities of triggered
seismicity in
Auth.
10.B3.11. Some
features of engineering-geological (formative) zoning of a folded mountain
region by the example of
Spatial variabilities of
geological formation and geological and genetic complexes in the explored
region and general characteristics of geodynamic processes related to them, makes
it possible to divide the territory of Western Abkhazia into engineering and
geological zones; it is part of the alpine folded system and its current
structure has been mainly formed at different stages of the Alpine
tectogenesis. Several pre-Alpine consolidated areas are detected within its
boundaries, which determine clear geotectonic zoning of this region [1]. Apart
from this, more vertical, than horizontal changes are typical for zoning
factors of engineering and geological conditions. These changes are linked to
orogen features of the
Auth.
10.B3.12. Results
of carrying out of oil and gas exploration on the West (Kolkhida) submergence
zone of Transcaucasian intermountain district and future recommendations. /N. Jikia/. Transactions
of the
Increased demand for fuel and energy
resources in
Auth.
10.B3.13. Mathematical
model of variation of distribution of silver-bearing barytes mineralization of
Bolnisi David-Gareji. /N. Kajaia, D.
Bluashvili,
The nature and intensity of variability in
the distribution of useful mineralization of the David-Gareji deposit are
considered. Using the probabilistic-statistical technique of mathematical
modeling, the amount of mineralization variation intensity and high inaccuracy
of the arithmetical mean value between the content of barytes and silver and
mathematical expectation are determined. The correction factors are singled out
and the earlier calculated reserves of these useful components have been recalculated.
Auth.
10.B3.14. Petrology
of some intrusive rocks of Dzirula crystal massif. /T. Gorgidze/. Transactions
of the
The massif of Dzirula is the protrusion of Pre-Mesozoic
crystalline basement. The massif is built by the rocks of metamorphic
complexes, intrusive, effusive and vein bodies. The magmatic rocks are
represented by quartz diorites, granitoids and gabbros. The latter is very important
constituent of the massif structure. In the Gezrula, Dumala, Lomisi, Vashleura
and Tskhetisjari river gorges there are outcropped intrusive bodies of various
dimensions. We have studied Shrosha and Tskhetisjvari intrusive bodies
represented by gabbros, gabbro-diorites, gabbro-diabases and
hornblende-bearing peridotites. The gabbro-like rocks are crossed by granites
and its derivatives-aplites and pegmatites - pointing to the elder age of the
basic rocks in comparison with that of granites.
Auth.
10.B3.15. Relative characterization of barite-bearing fields of Okriba ore
junction. /M. Japaridze/. Transactions
of the
A comparative assessment
of the Okriba ore junction barite-bearing fields is given. In particular,
presented are their location in the stratigraphic section, their interrelation
with the major ore-controlling breakdown and the fold axis, mineral composition
and zoning, the mineralization depth and the maximum vertical extent of
veins.
Auth.
10.B3.16. Determination of microelements
concentrations in
soils of
The
location by depth of micro-concentrations of 29 different elements in soils of some
Auth.
10.B3.17. Investigation of acoustic emission accompanying stick-slip movement of
rock samples at different stiffnesses of spring-block system. /T. Matcharashvili,
T. Chelidze, N. Zhukova, A. Sborshchikovi/. Nano
Studies. – 2012. – #5. – pp. 57-72. – eng.
Nanotechnology is the study of
manipulating matter on an atomic and molecular scale. Generally, nanotechnology
deals with developing materials, devices, or other structures possessing at least
one dimension sized from 1 to 100 nm. Scientists debate on the future
implications of nanotechnology. Nanotechnology can create new materials and
devices to be applied in medicine, electronics, biomaterials and seismology. It
is very important to understand the frictional process, especially, transition
from stable to stick-slip motion, in mechanical engineering and seismology. It
seems that analysis of acoustic emission accompanying the friction process can
be a sensitive tool for revealing fine details of the friction process.
Acoustic emission accompanying the stick-slip movement of basalt samples has
been investigated in laboratory slider-spring device using the statistical and
dynamic data analysis methods. It was found that statistical and dynamic
changes in acoustic emission of stick-slip movement depend on the stiffness of
spring in the spring-block system. The obtained results show that dynamics of
stick-slip process undergoes both the qualitative and quantitative changes on
transition from the stick-slip to the stable sliding friction caused by an
increased stiffness of the frictional system. The extent of regularity in the stick-slip
process assessed by analysis of acoustic emission temporal distribution
characteristics increases together with an increase in spring stiffness.
Auth.
B4. Geography. Cartography. Astronomy
10.B4.1. Complex
characterization of the
The article deals with an analysis and large-scale mapping of the
natural-territorial complexes of Tskaltubo cave system surroundings. The role
of natural components and man-made factors in the formation and
differentiation of modern landscapes are established. In the cave system, the
Didghele, Melouri and Bgheristskali caves, especially the Tskaltubo
(Kumistavi), Ghliana and Opicho caves, as well as water-absorbing and
discharge areas of the “fractured-siphon” underground waters are found to be
the catchment area.
Auth.
10.B4.2. Electropolarimetric study of Jupiter’s Galilean
satellites. /R. Chigladze/. Bulletin of the
The polarization properties of light reflected from
Jupiter’s satellites are studied. Maximum difference is noticeable between
polarization degrees of light, reflected from the satellites’ front and rear
hemispheres. For the satellites located relatively close to Jupiter (Io,
Europe, Ganymede), the magnitude of polarization degree of light, reflected
from the front hemisphere, is comparatively less than the magnitude of
polarization degree of light, reflected from the rear hemisphere, and vice versa for satellite Callisto. A
hypothesis is presented in order to explain the mentioned differences.
Auth.
10.B4.3. A new photometer-polarimeter coupled with CCD and
spectropolarimetric maps of the lunar surface.
/O. Kvaratskhelia, V. Kakhiani/. Bulletin of the
Description of a new
photometer-polarimeter coupled with CCD, applied for observations of extended
celestial objects, is presented. The results of observations of four regions of
the Moon surface made using this device are presented.
Auth.
C. TECHNICAL AND
APPLIED SCIENCES. SECTORS OF ECONOMY
10.C1.1. The reasons of small oil extraction in
The condition of oil industry of
Auth.
10.C1.2. Results of a hydraulic calculation examination
of the Baku-Tbilisi-Ceyhan pipeline section going through the
The hydraulic calculation examination results
of the Baku-Tbilisi-Ceyhan pipeline section within the Georgian territory are
reviewed. The examination is carried out according to the standards worked out
by the former Soviet Union (now the
Auth.
10.C1.3. Coal industry in the fuel and energy complex
of
The rate and scale of coal mining in Georgia,
as well as share of coal in the fuel and energy balance in 2000-2011 are
considered; the figures of export and import of coal are provided; the reasons
of recession of the industry and intensification of mining in recent years
are noted; for the first time in the years of the state independence of
Georgia, the cumulative balance sheet, which is made up on the basis of expert
estimation, is presented, and recommendations for improving the current state
of the industry are developed.
Auth.
10.C1.4. Activities for reaching the designed capacity
of the first Tkibuli-Shaori coal-fired thermal power plant. /S. Makharadze/. Mining
Journal. – 2012. – #1(28). – pp. 69-72. – geo.; abs.: rus., eng.
Activities that are to be carried out in order
to reach the designed capacity of Tkibuli-Shaori coal-fired thermal power plant
are discussed. Deviation of some parameters was caused by coal moisture
content, coal burning process, formation of slag in the boiler, coal
characteristics, and changes in the content of the exhaust, which were slightly
different from the planned design parameters. The designed capacity and planned
self-cost per 1kWt/h were met by improving the above-mentioned deviations. This
experience can be applied successfully for TPPs of bigger output to be built in
the near future.
Auth.
10.C1.5. Observation of suffusion processes on Enguri
arch dam according to water chemical analysis. /B. Zautashvili, N. Zautashvili, T. Pitava/. Mining Journal. –
2012. – #1(28). – pp. 81-87. – geo.; abs.: rus., eng.
Questions of Enguri arch dam suffusion
processes, their character and required investigations for preventing the
adverse effects of this process are described. The chemical analysis of water
samples taken from grouting, drainage and pass galleries makes it clear that
they are characterized by high leaching aggression (ÍÑÎ3-
content less than 1.5 mg-eq/l), which can be reason of development of suffusion
processes in the dam. In this respect waters of IV, V and VI horizons are noted
for particular aggressiveness (less than 1 mg-eq/l ÍÑÎ3- content).
In order to establish and prevent the progress of suffusion processes at Enguri
arch dam it is necessary that a monitoring study of the chemical composition of
the water, its leaching (ÍÑÎ3- content) and dynamics of
the suffusion processes is carried out.
Auth.
10.C1.6. The causes, results and analysis of the
The
publication by G. Medvedev on the
Auth.
10.C1.7. On the impact of
The
work deals with technogenic (man-made) radionuclides which have gotten into the
environment as a result of human activity and which are sharply different by
ecological properties from natural radioactive elements. The total quantity of
biologically hazardous radionuclides Caesium-137 and Strontium-90 injected
into the air as a result of nuclear accidents is given. It is concluded that
for development and practical realization of operative prognostic-diagnostic
schemes of distribution of various toxic impurities in the natural environment,
a uniform operative network based on powerful computers connected to high-speed
Internet needs to be created. This will enable to create on the same base “geoinfiormation
systems” in the future.
Auth.
10.C1.8. The late outcomes of the
The
presented research data evidence how heavy are the late outcomes exposure to
radiation on the organism, which found its expression in pathological changes
observed in the liquidators working within the Chernobyl NPP zone during the
accident and their descendants born with congenital pathologies.
Auth.
10.C1.9. Biodosimetric assessment of the
The
method of dosimetry enables to measure the absorbed radiation doses, while the
biodosimetry methods are based on detection of direct biological effects caused
by ionizing radiation. Results of the biodosimetrical estimation of the state
of health of the 30 liquidators working within 30 km zone of the Chernobyl NPP
for 2-6 month are given.
Auth.
10.C1.10. System
solutions of equations for the uniform
arcC13h dams. /Z. Gedenidze, T. Kvitsiani,
This paper
deals with issues related to the design of arbitrarily-shaped uniform dams with
regard to the material resistance to the compression and tension force.
Conditions of the uniform arch dams can be achieved in various ways, including
the selection of thicknesses for a given geometry of the middle surface. Taking
into account that it is difficult to solve this problem analytically, the
authors used the method of finite differences. The grid spacing in the vertical
direction is taken as a constant; while in the horizontal direction the contour
of the region to pass through the mesh points is allowed. In the contact
region, the internal forces and moments are determined by the method of finite
elements with regard to the "dam-foundation".
Auth.
10.C1.11. Investigation
of clay soils on the areas adjacent to the
construction site of the earthdam of the Mtkvari HPP. /T. Tevzadze,
The
paper presents the materials of geotechnical investigations of clay soils
intended to be used for the placement into the body of antifilter elements in
the earthen dam of the Mtkvari HPP.
Auth.
10.C1.12. Determination
of maximum density and optimum thickness
for the alluvial gravel by their experimental dumping for the
construction of the catchment dam of the Mtkvari HPP. /T. Tevzadze, S. Bakhturidze,
The paper presents the experimental materials
of gravel dumping from the alluvial terrace of the River Mtkvari. Experiments
were carried out under field conditions during the dumping of retaining prisms
for the water-retaining dam of the Mtkvari HPP.
Auth.
10.C1.13. Considerations on promotion of
social-economic development of the north mountain region of
The North Mountain Region of Georgia situated
along the Caucasus Ridge is scarcely populated and is noted for very low
economic activity; able-bodied population intensively migrates from these
places. The solution of the problem is seen in the development of small hydro
power stations, by the example of Kazbegi region where hydro power potential
is very high. The orientation on the development of small hydro stations is
dictated by practically insignificant impact on the environment, a short period
of their realization and considerably small capital investments.
Auth.
10.C1.14. Loads
developed on blades of a wind generator. /M. Shvangiradze/. Transactions
of the
In designing and manufacture of wind generators
it is important to know the load acting on the rotor blades. The article
proposes a calculation method, based on parameters of the rotor blades and wind
speed to measure the forces acting on the blade and the power developed by the
rotor.
Auth.
10.C1.15. On
the necessity of utilization of the power budget of the River Enguri and the
related social and environmental problems. /T. Magrakvelidze, V. Chichinadze, Kh. Lomidze,
The current level of development of the
Georgian power industry is reviewed. It is shown that in terms of power
generation
Auth.
C2. Electrical Engineering.
Electronics. Radio Engineering. Communications
10.C2.1. The general principles of construction of the inductive three-coordinate
primary converter. /O. Labadze/. Proceedings of the A.
Eliashvili Institute of Control Systems. – 2012. – #16.
– pp. 99-104. – geo.; abs.: geo., eng., rus.
The general principles and features of construction of an inductive three-coordinate hemispherical primary converter with odd
quantity of sections of measuring windings are considered. It was established
that by means of selection of the form of topology of measuring windings and
replacement of odd quantity of sections on hemisphere an increase in the
threshold of sensitivity and level of a target signal can be achieved.
Auth.
10.C2.2. Engine and generator management issues. /Ò. Òrokashvili, G. Urushadze/. Proceedings of the A. Eliashvili Institute
of Control Systems. – 2012. – #16. – pp. 121-123. – geo.; abs.: geo., eng., rus.
A hydraulic unit’s frequency
control circuit is considered. The circuit includes symister-commutated
ballast. In the symister control circuit includes an optroresistor, the
resistance of which is controllable by the frequency error.
Auth.
10.C2.3. Definition
of the first- and second-order derivatives of low-frequency signal. /Ò. Òrokashvili, D.
Tsintsadze/. Proceedings
of the A. Eliashvili Institute of Control Systems. – 2012. – #16.
– pp. 124-127. – geo.; abs.: geo., eng., rus.
The
scheme of obtaining the derivative of the low-frequency signals using a comparator
and integrator is considered in the article. The block diagram for line voltage
frequency, it errors and derivative is shown.
Auth.
10.C2.4. Development of a hydrojet pump. /D. Purtshvanidze/. Proceedings of the A. Eliashvili
Institute of Control Systems. – 2012. – #16. – pp. 133-135. – geo.; abs.: geo., eng., rus.
The article is dedicated to the development of a new
type of pump. The principle of hydrojet pump operation is based on the pressure
forces that appear during electric discharge in water. On the electric
discharge the waves similar to the shock waves produced by explosions are
created that transmit pressure in all the directions. The main part of the pump
is a cylinder with two valves. Water flows into the pump through one valve and
comes out through the other one. On discharge the arising pressure pushes water
from the pump after which the first valve is closed and the second valve lets
the water into the pump. With the help of the hydrojet pump it is possible to
develop high pressure and, accordingly, pump water at high altitudes.
Auth.
C3. Automation & Telemetry.
Computer Engineering
10.C3.1.
Development of artificial microclimate control
systems using modern circuit facilities. /N. Kavlashvili,
O. Labadze, L. Gvaramadze, G. Kiknadze, T. Saanishvili/. Proceedings of the
A. Eliashvili Institute of Control Systems. – 2012. –
#16. – pp. 75-78. –
geo.; abs.: geo.,
eng., rus.
The
features of construction of artificial microclimate control systems are
considered. The possibilities of using Arduino platform in the design of
technical control systems are presented. Based on such circuit solutions the
implementation of a relevant control system is proposed, which, on the basis of
information obtained from 2-5 discrete points (temperature, humidity), allows perform up to 8 control actions on the object.
Auth.
10.C3.2.
Identification of inter-inductive converter and its
establishment as a model of automatic control system’s unit. /O. Labadze/. Proceedings of the A. Eliashvili
Institute of Control Systems. – 2012. – #16. – pp. 89-92. –
geo.; abs.: geo.,
eng., rus.
Questions of
identification of an inter-inductive converter are considered. Due to the fact
that on change of the period of harmonic oscillations the constant component of
the output signal remains constant, it is described by the homogeneous
differential equation of no more than second order. It is established that the
model of considered inter-inductive converter belongs to the simple Hammerstein models.
Auth.
10.C3.3. Physical basiñs and features of
construction of inter-inductive transmit-receive antennas and application
areas. /O.
Labadze, T. Makharashvili, G. Maghlakelidze/. Proceedings of the A. Eliashvili Institute
of Control Systems. – 2012. – #16. – pp. 93-98. – geo.; abs.: geo., eng., rus.
The physical principles and
features of construction of combined inter-inductive antennas are considered.
The results are based on the researches of different circuits of symmetrical
form located in space. The established physical and structural features provide
for the use of a combined antenna not only for measurement, reception and
transmission of information (including moving objects), but also for building a
system of dynamic control.
Auth.
10.C3.4. Adaptive system of controlling flexible rocker
“trunk''. /D.
Purtshvanidze/. Proceedings of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 136-139. – geo.; abs.: geo., eng., rus.
The paper
discusses the adaptive system of controlling ultrasonic feedback sensors. The
necessity for using adaptive management system is analyzed. The realization of
the object model in the object itself constitutes the specificity of the
designed control system. Ultrasonic sensors are controlled by the same signals
that control the trunk, but it is not affected by disturbances. At the command
coming from the program control memory the movement of both the gripper trunk
in real working volume and of the ultrasonic receivers along OX, OY and OZ axes
are implemented respectively. After the movement is implemented, the
correspondence between the real coordinates and the coordinates provided by the
program is checked. In case difference is noticed, the corresponding correction
signal is sent to the control unit.
Auth.
10.C3.5. Automated device for studying metallurgical
properties of raw material. /N.
Gdzelishvili, K. Tsereteli, N. Mirianashvili, V. Khatashvili/. Proceedings of the A. Eliashvili Institute of Control
Systems. – 2012.
– #16. – pp. 140-142. – geo.; abs.: geo., eng., rus.
The
paper considers the
problem of automation of the process of measuring the physical parameters of the metallurgical
charge at various temperatures of the furnace. The functional layout of the automated
device is given and the principle of its operation is described.
Auth.
10.C3.6. Cloud
computing, the concept and nature. /T. Bakhtadze,
Cloud services are
getting more and more popular and they are predicted to have a great future by
computer experts. Almost everything can be done my means of cloud technologies.
All we need is a web browser and access to the internet. The cloud concept,
cloud calculations/computations and their benefits are considered.
Auth.
C4. Mining.
Metallurgy. Chemical Industry
10.C4.1. SHS
metallurgy: science and practice. /V. Yukhvid/. Modern Technologies and
Methods of Inorganic Materials Science. Proceedings of International Conference.
– 2012. – pp. 13-24. – rus.; abs.: geo., eng., rus.
Self-propagating
high-temperature synthesis of cast refractory inorganic materials, items, and
protective coatings (SHS metallurgy) is one of most promising directions of SHS
research and development. SHS metallurgy is based on the combined use of
metal-thermal (thermit) reactions and conventional SHS from the elements. High
combustion temperatures (3000–4000°Ñ) and intense melt splashing during
combustion generate a need for carrying out the synthesis under gas pressure or
in centrifugal machines in order to control the processes of combustion,
structure formation, and product properties. The most important results
obtained for over the past three decades can be summarized as follows. (1)
Experimental and theoretical studies on high-temperature liquid-phase reactions
in thermit-type multicomponent mixtures shed light on the mechanism of liquid-phase
dynamics in these systems and on the effects of gravity, microgravity, and
centrifugal forces on their combustion. (2) A number of means for regulating
the composition and structure of cast materials have been elaborated, such as
direct and inverse phase segregation to fabricate layered or functionally
graded materials, the size composite constituents and controlling their
composition, and preparation of amorphous nano-grained materials. (3)
Liquid-phase SHS processes have been utilized to fabricate (i) a number of new
hard and heat-resistant alloys and items made thereof (including lined tubes
for transportation of abrasive / aggressive media and high-temperature melts);
(ii) oxide materials for use in abrasive tools and cast molding equipment; and
(iii) protective coatings of machine parts operating in conditions of intense
wear and elevated temperature. The presentation will be addressed to the most
important contributions to the development of SHS metallurgy made by the
researchers and engineers from
Auth.
10.C4.2. Some new
methods for quantitative determination of rates of fast reactions in condensed
systems.
/A. Steinberg/. Modern Technologies and Methods of Inorganic Materials Science.
Proceedings of International Conference. – 2012. – pp. 25-38. – eng.; abs.: geo., eng., rus.
Some
experimental and theoretical data on kinetics of fast high-temperature
decomposition of some homogeneous and heterogeneous energetic materials are
given. Sometimes kinetic constants of fast reactions dominating at high
temperatures were shown to significantly differ from those of low-temperature
reactions. A new non-isothermal kinetics method – electrothermal analysis (ETA)
used for the study of fast high-temperature reactions occurring under
conditions similar to SHS, combustion and explosion is discussed. This method
and a new TA-instrument ETA-100 were used to study mechanism of gasless
combustion and explosion in the Ni–Al, Ti–C, Ta–C and Ti–B and some other
systems.
Auth.
10.C4.3.
Electron-beam technologies and perspectives of their applications. /M. Okrosashvili/.
Modern Technologies and Methods of Inorganic Materials Science. Proceedings of
International Conference. – 2012. – pp. 39-50. – rus.;
abs.: geo., eng., rus.
The
results of studying the microstructure and phase composition of Ti–Cu
transitional layer forming by condensation and reactive diffusion of titanium
steam components are presented. The influence of surface structure of the
matrix on phase composition of the condensate as well as on its adhesion with
the matrix is investigated. The possibility of production of X-raying amorphous
powders by electron-beam technology is demonstrated.
Auth.
10.C4.4. Synthesis of
single-phase intermetallics. /G. Oniashvili, G. Tavadze/. Modern
Technologies and Methods of Inorganic Materials Science. Proceedings of
International Conference. – 2012. – pp. 58-65. – rus.;
abs.: geo., eng., rus.
The
work describes the possibilities to obtain single-phase compounds in Ti–Al
system in Self-propagating High-temperature Synthesis (SHS) – Thermal Explosion
(TE) mode. The technology is elaborated and technological parameters are
established for obtaining single-phase materials. Besides, theoretical and
practical bases are presented for fabrication nanostructure materials in Ti–Al
system. Physical and mechanical properties and microstructure of materials are
studied. It is established that the properties of single phase nanostructured
materials, obtained by SHS–TE method are better than their industrial
analogues.
Auth.
10.C4.5. Production
of cast composite materials on the basis of carbides and borides of titanium
and chromium with SHS metallurgy method. /V. Gorshkov, V. Yukhvid/. Modern Technologies
and Methods of Inorganic Materials Science. Proceedings of International
Conference. – 2012. – pp. 66-73. – rus.; abs.: geo., eng., rus.
The
carbides and borides of titanium and chromium have high hardness and stability
to aggressive medium at high temperatures. The results of investigations
appeared in the report are such as regularities of SHS, properties of cast
composite materials (CCM) on the basis of titanium and chromium carbides and
borides with a nickel-aluminum intermetallic bond, and also the directions of
their practical application. The synthesis was carried out in SHS reactor at
initial nitrogen pressure 4 MPa. The analysis of synthesis products showed that
the combustion products have the cast layered structures and are separated
easily from each other with mechanical way.
Auth.
10.C4.6.
Electro-stimulation of 7 steel-aluminium diffusion connections under
thermoplastic processing in the solid phase. /D. Macharadze, T. Namicheishvili, D.
Nozadze, M. Okrosashvili/. Modern Technologies and Methods of Inorganic
Materials Science. Proceedings of International Conference. – 2012. – pp. 74-83. – rus.; abs.: geo., eng., rus.
A
combined method of electric contact heating and diffusion connection of steel
with aluminum, which makes an essential effect on solid phase shaping
conditions, provides better physical contact and contact surface cleaning,
formation and conservation of solid setting units is proposed. Activation of
contact surfaces is achieved more effectively and quickly than at mechanical
and vacuum treatment. Formation of physical contact and setting corresponds to
contemporary conceptions of solid body model and kinetics of development on
connection strength by the data of the carried out tests. The mechanical
testing in static and dynamic modes is carried out. The structure and phase
composition in steel-aluminum connections are determined.
Auth.
10.C4.7. Large
refractory metal single crystals grown by plasma-induction zone melting. /V. Shapovalov/. Modern
Technologies and Methods of Inorganic Materials Science. Proceedings of
International Conference. – 2012. – pp. 84-90.
– rus.; abs.: geo., eng., rus.
In
the article, a new method of production of large refractory metal single
crystals is described. Tungsten and molybdenum single crystals of dimensions
20x (140–160) x170 mm were grown. Single crystals are oriented, the maximum
angle of disorientation of structure fragments does not exceed of 5o.
Auth.
10.C4.8. Generalized
gradiant model of post critical behavior of polycrystal materials. /A. Nadareishvili,
V. Petushkov, G. Sakhvadze/. Modern Technologies and Methods of Inorganic
Materials Science. Proceedings of International Conference. – 2012. – pp. 91-100. – rus.; abs.: geo., eng., rus.
The
experimentally observably phenomena of post-critical deformation of solids are
described. A generalized physical-mechanical model for finite deformations of
damaged material based on the thermodynamics laws is presented. Regulators for
well-posed boundary problem as a viscosity, second-order gradients of internal
variables of system and characteristic length scale of structure are used. The
model includes also micro-structural nucleation and growth of damages.
Auth.
10.C4.9. Hot explosive consolidation of novel
nanostructured Cu–W composites. /A.
Peikrishvili, E. Chagelishvili, B. Godibadze, M. Tsiklauri, A. Dgebuadze, G. Mamniashvili, F. Akopov, N. Arabajian, T. Gegechkori, L. Sharabidze/. Modern Technologies
and Methods of Inorganic Materials Science. Proceedings of International
Conference. – 2012. – pp. 101-115. – eng.; abs.: geo., eng., rus.
Copper–20 wt.% tungsten (Cu–20%W) powder mixtures were
consolidated into cylindrical rods using both hot shock wave consolidation (HSC)
and hot vacuum compaction (HVC) processes. Two types of Cu–W precursor
compositions, one with a nanometer-scale W and another with coarser grain sizes
of > 1 μm W were, consolidated to near theoretical density at 800 and
1000°C. The shock wave loading intensity was about 10 GPa; the loading
intensity during static compression was 33.9 MPa (346 kg/cm2). The
investigations showed that the combination of high temperatures (above 800°C)
and the use of a two-stage shock wave processing method were found to be
beneficial to the consolidation of the Cu–20%W composites and resulting in high
densities, good integrity, and good electrical properties. The structure and
property of the samples depended on the distribution and size of the precursor
W particles. It was established that for the Cu-W composites, the use of the
nanoscale W precursor gave better results than that with the > 1 μm
grain size. Specifically, the coefficient of relaxation is lower, 4.3-8.6
versus 8.0-10 for the Cu-W composition made with the larger, micrometer W grain
size. It was further established that the electrical properties of the
consolidated composites with nanoscale W are characterized with higher
resistance and weaken dependence of the susceptibility applied external
magnetic field. It was demonstrated that HSC undoubtedly has advantages
compared to other technologies (e.g., HVC) allowing the fabrication of novel
Cu–W composites with improved electrical properties, sometimes even better than
those of pure Cu.
Auth.
10.C4.10. Bi–Pb–Sr–Ca–Cu–O compositions fabricated by Shock
Wave Consolidation (SWC) technology. /J. Chigvinadze, S. Ashimov, T. Machaidze, O. Magradze, G.
Donadze, G. Dvali, A. Peikrishvili, E. Chagelishvili, V. Peikrishvili/. Modern Technologies and Methods of Inorganic
Materials Science. Proceedings of International Conference. – 2012. – pp. 116-124. – eng.; abs.: geo., eng., rus.
High-temperature
superconductors of Bi–Pb–Sr–Ca–Cu–O system were synthesized using micropowders
and Shock Wave Consolidation (SWC) technology. The superconductive micropowder
was synthesized from oxide micro-powders using the solid state reaction and
subjected to treatment by SWC. Finally the consolidated superconductive
composites of Bi–Pb–Sr–Ca–Cu–O system are produced. The application of SWC
technology showed that with increase of pressure up to P» 12 GPa the critical
temperature of superconductive transition of Bi/Pb (2223) composite is
increased from Tc =107 K for starting material up to Tc =138 K (i.e. by 31 K)
for the consolidated sample fabricated at pressure P » 12 GPa. It is foreseen
the synthesis with application of technology similar to used one for
micropowders of oxide nano-powders and the investigation of fabricated HTSC
samples. These make it possible to increase considerably the critical
temperature of superconductive transition Òñ and also the current carrying
ability in samples synthesized from oxide nano-powders.
Auth.
10.C4.11. Direct
reduction of ammonium paramolybdate to Mo and Mo2C powders by SHS.
/S.
Aydinyan, A. Baghdasaryan, O. Niazyan, Kh. Manukyan,
An
alternative way for the production of molybdenum and molybdenum carbide via
direct reduction of AMT by applying SHS method was suggested. Taking into
account that AMT+Mg reaction is characterized by high exothermic effect
(Tad=28000C), it is supposed to perform controllable combustion
synthesis due to coupling with low AMT+C or AMT+Zn reactions and obtain fine
powders of molybdenum and molybdenum carbide (Mo2C). According to
DTA/ DTG analyses performed, the reduction process of AMT starts with weaker
reducer (Zn, C) at relatively lower temperatures and then continues with
stronger one (Mg).
Auth.
10.C4.12.
SHS-compaction of hetero-phase metal-ceramic composites. /O. Okrostsvaridze,
Y. Milman, G. Tavadze, T. Badzoshvili, A. Byakova/. Modern Technologies and
Methods of Inorganic Materials Science. Proceedings of International
Conference. – 2012. – pp. 136-148. – rus.; abs.: geo., eng., rus.
Practically non-porous high-modulus composites of
compositions TiB–Ti, Cu–TiB2, Fe–TiB2/TiB–Ti, etc. consolidated by
SHS-compaction of nano-charge were obtained. They possess enhanced mechanical
strength and crack growth resistance. By the methods of X-ray diffraction
analysis and metallography the phase composition of transition layer of
TiB–Ti+B4C coating on the TiAl and TiB–Ti substrates was studied. As a result
of high diffusion mobility of Al atoms, a transition layer is formed on the
TiAl substrate. Mechanical properties and structure of the compacted by SHS
technology nano material obtained in the form of three-layer composite was
investigated. The investigation of temperature dependence of HV hardness of
TiB–Ti+7%B4C coating on the substrates TiB–Ti and TiAl in the temperature range
20–8000Ñ was carried out. Actually, the values of micro-hardness of
TiB–Ti+7%B4C coating (irrespective of what substrate is coated) in the
temperature range 20–600°Ñ are lowered equally. When the TiB–Ti is coated,
hardness at 800°C remains high HV ≈ 5.5 GPa.
Auth.
10.C4.13. Cermet
based on nanostructured abrasive carbides. /A. Mikeladze, A. Gachechiladze, B.
Margiev, O. Tsagareishvili/. Modern Technologies and Methods of Inorganic
Materials Science. Proceedings of International Conference. – 2012. – pp. 149-160. – rus.; abs.: geo., eng., rus.
The abrasive nanocrystalline carbides (TiC, WC
and B4C)-based metal-ceramic material was obtained. The method of producing
consists in the spraying of liquid solutions of salts of components and
high-molecular hydrocarbons in reducing and carbide-forming environments at
temperatures of 500–950ºC. After the selective recovery and carbidization
processes, one can obtain composite superfine (< 100 nm) powder with a
uniform distributed particles of carbides (TiC, WC and B4C) and the cementing
metals or alloys (Ni, Co, CuMn and CuTi). The WCl6·6H2O,
TiH2, B2O3, CoCl2·6H2O,
NiCl2·6H20, CuCl2·2H2O, MnCl2·4H2O
and polyvinyl alcohol PVOH were used as precursors in the synthesis of these
metal-ceramic materials. X-ray analysis showed the presence of metal-carbide
abrasive systems and corresponding cementing metals and alloys. Applying the
spark-plasma synthesis method, metal-ceramic composite systems were compacted
maintaining their nanocrystalline structure. The obtained metal-ceramic
materials have been used for making the pilot samples of goods.
Auth.
10.C4.14. Obtaining
powder composite materials. /Z. Mirijanashvili, V. Garibashvili, A. Kandelaki/.
Modern Technologies and Methods of Inorganic Materials Science. Proceedings of
International Conference. – 2012. – pp.
161-176. – rus.; abs.: geo., eng., rus.
The developed technology can be considered as
a possible condition for the solution of the problem for producing powder
composite materials with improved properties. Commercial interest in the
technology is determined by: 1) the obtaining high-quality and cheap source of
charge components – metal chlorides (WCl6, CrCl3, CoCl2,
NiFeCl4, etc) on the basis of non-deficient material
(metal-containing waste products) which are intermediates for a wide range of
powder materials (CrB, CrB2, (TiCr)B2, Cr3C2,
NiCr–Cr3C2, NiCr–TiC, (TiCr) B2–Al2O3,
(TiCr)B2–Ni–Cu–Al2O3, TiC–WC–Co–Ni, WC–Co,
TiC–WC–Co–Ni, WC–FeNi, etc.); 2) the production of ultra-dispersed or
nano-crystalline powders with improved properties via metal- or
hydrogen-thermal reduction of the chloride-oxide charge; 3) the possibility of
providing processes in auto-thermal mode; the simplicity of the technological
cycle; 4) the provision of wasteless technology and meeting of environmental
issues.
Auth.
10.C4.15.
Synthesis process in the metal–carbon at high pressures and neutron irradiation
for artificial diamonds. /I. Chkhartishvili, J. Sharashenidze/. Modern
Technologies and Methods of Inorganic Materials Science. Proceedings of
International Conference. –
2012. – pp. 203-207. – rus.; abs.: geo., eng., rus.
The technology of artificial diamonds using
high pressures and neutron irradiation is described. First stage is the loading
of metal-carbon by weak shock waves. Graphite is transferred to the activated
state. Further irradiation with fast neutrons is produced in the
low-temperature regime.
Auth.
10.C4.16.
Construction of poly-component diagrams systems by the method of the image of
partial systems.
/O. Shuradze/. Modern Technologies and Methods of Inorganic Materials Science.
Proceedings of International Conference. – 2012. – pp. 208-227. – rus.; abs.: geo., eng., rus.
For
alloys with the total concentration of carbon and nitrogen ≤ 0.005 % by
methods of light microscopy, X-ray diffraction, X-ray micro-spectral,
durometric and ferrite metric analyses, and also by definition specific
electrical resistant, there are constructed isothermal cuts of a corner of
system Fe–Cr–Mn rich with iron at temperatures 700 and 1200°C. It is
established that the border of limiting solubility of chrome in γ-solid
solution is located below that in known structural diagrams of this system.
Diagrams of multicomponent quasi systems of solid solution γ
(Fe70:Cr5:Mn25) and alloying elements Si, Mo and W are studied. At temperatures
700 and 11000C constructed phase diagrams of: quasi binary systems
[γ-(Fe70:Cr5:Mn25)–Si, γ-(Fe70:Cr5:Mn25)–Mo and
γ-(Fe70:Cr5:Mn25)–W; quasi ternary systems γ-(Fe70:Cr5:Mn25)–Si–Mo,
γ-(Fe70:Cr5:Mn25)–Si–W, γ-(Fe70:Cr5:Mn25)–Mo–W and quasi quaternary
system γ-(Fe70:Cr5:Mn25)–Si–Mo–W.
Auth.
10.C4.17. Development
of special steels and their deoxidizing technology with use of multi-component
ferroalloys.
/A. Oakley, O. Shuradze, M. Ratishvili, B. Margiev/. Modern Technologies and
Methods of Inorganic Materials Science. Proceedings of International Conference.
– 2012. – pp. 228-238. – rus.; abs.: geo., eng., rus.
In
the paper, the results of research performed in the F. Tavadze Institute of
Metallurgy and Materials Science on development of special steels (cryogenic,
wear resistant and nonmagnetic) are presented. This research is an example of
further development in scientific and technological fields of fine steel
manufacture by use of multicomponent deoxidizers and modification materials.
Auth.
10.C4.18. Efficiency
of low-grade manganese ore in the production of ferrosilicon manganese. /J. Mosia, M.
Mindeli, V. Mgeladze/. Modern Technologies and Methods of Inorganic Materials
Science. Proceedings of International Conference. – 2012. – pp. 239-242. – rus.; abs.: geo., eng., rus.
The
paper attempts to solve the problem of formation of manganese-containing
mixture of optimal composition, providing the process of obtaining of
ferrosilicon manganese with satisfactory technical and economic performance,
while simultaneous using of low-grade manganese ores from Terjola and
high-quality imports of manganese ore and agglomerates.
Auth.
10.C4.19. Low-cost
nickel–chromium austenitic acid proof steels. /L. Tavadze/. Modern Technologies and
Methods of Inorganic Materials Science. Proceedings of International Conference.
– 2012. – pp. 243-248. – rus.; abs.: geo., eng., rus.
There
are given data about low cost austenitic acid proof steels of type
0,3CNi20Cr18Si3 Mo3Cu3Nb (EP667) developed in F. Tavadze Institute of Metallurgy
of Georgian Academy of Sciences in 1967–1999’s, which can be used instead of
alloy EI943 (0.6CNi28 Cr23Mo3Cu3Ti) in an environment, where they have
equivalent corrosion resistance, and also as an independent constructional
material for the equipment of the chemical, petrochemical, medical, food and
pharmaceutical industry working at raised temperatures and under pressure. For
the technological environment of production of anhydrous hydrogen fluoride it
was developed low cost austenitic steel 0.03C20Cr18Ni2Mo2Cu. The increase of
resistance against intercrystalline corrosion by complex doping of acid proof
nickel–chromium steels with calcium, boron and yttrium has been established.
For the smelting austenitic and duplex steels with high nitrogen content, in
the F. Tavadze Institute of Metallurgy and Materials Science there are working
on setting up of special equipment for steel production under the pressure of
nitrogen.
Auth.
10.C4.20. The theory
and technology of development of hi-tech steels and alloys. /M. Ratishvili/.
Modern Technologies and Methods of Inorganic Materials Science. Proceedings of
International Conference. – 2012. – pp.
249-257. – rus.; abs.: geo., eng., rus.
The
paper presents the survey information about development of the most effective
low alloyed, high-strength cryogenic, heat- and corrosion-resisting and other
steels and alloys, on the basis of researches of a structure of multicomponent
diagrammed conditions of the metal systems at the Georgian Institute of
Metallurgy under the leadership of F.N. Tavadze. Results of research on created
of new generation hi-tech corrosion- and wear-resistance steels during
2002–2010 as logic continuation of development of scientific basis and
materials technology are also presented.
Auth.
10.C4.21. Heat treatment and strength tests of the new model
complex-alloyed structural steels. /S. Papidze, B.
Zivzivadze/. Modern Technologies and Methods of Inorganic Materials Science.
Proceedings of International Conference. – 2012. – pp. 258-264. – rus.; abs.: geo., eng., rus.
The melting methodology of the new model complex-alloyed
structural steels, their snapshot of mechanical properties in dependence on
chemical composition and tempering temperature are considered.
Auth.
10.C4.22.
Analysis of impurity inhibition of moving grain boundaries in low alloy steels
and the development of methods for TMT. /N. Luarsabishvili, V.
Badzoshvili/. Modern Technologies and Methods of Inorganic Materials Science.
Proceedings of International Conference. – 2012. – pp. 265-273. – rus.; abs.: geo., eng., rus.
It should be noted that the analysis of impurity
inhibition of moving grain boundaries in low alloy steels gives a fairly
accurate numerical values for the rate of re-crystallization of deformed
austenite, on the basis of which the possibility of a special mode
thermo-mechanical treatment is found. This treatment provides the obtaining of
fine, nanosized austenite and phase components after the tempering, and
guarantees high mechanical properties of steel.
Auth.
10.C4.23.
Perfection of a continuous steel-casting technology.
/I. Zhordania, G. Kevkhishvili, J. Loria/. Modern Technologies and Methods of
Inorganic Materials Science. Proceedings of International Conference. – 2012. – pp. 274-285. – rus.; abs.: geo., eng.,
rus.
The machine of continuous casting of ferroalloys was
designed, constructed and tested. A correlation between the structural and
technological parameters of free rolling was established. The design is
developed and used in metal VCRM.
Auth.
10.C4.24.
Investigation of corrosion resistance and electrochemical characteristics of
nanocrystalline coatings of Ti–8Ni–Cr system alloys.
/M. Mikaberidze, D. Ramazashvili, L. Akhvlediani/. Modern Technologies and
Methods of Inorganic Materials Science. Proceedings of International
Conference. – 2012. – pp. 286-294. – eng.;
abs.: geo., eng., rus.
Nanocrystalline coatings were received by electro spark
alloying of the commercial titanium alloys samples surface with application
the cast and compact Ti-8Ni-(1-3%) Cr alloy electrodes. Compacting of powders
was prepared by mechanical alloying, with subsequent cold pressing and
high-temperature baking. The nanocrystalline coatings increase hardness, wear
and corrosion resistance of the commercial titanium alloys surface and can be
re-commended for coatings of medical tools of multiply usage.
Auth.
10.C4.25.
Investigation of structure, mechanical properties, corrosion resistance of
Ti–Ni–Si system alloys and thermodynamic calculation of their phase diagram. /M. Mikaberidze, G.
Gordeziani, D.Ramazashvili, L.Akhvlediani, E.Gozalishvili/. Modern Technologies
and Methods of Inorganic Materials Science. Proceedings of International
Conference. – 2012. – pp. 295-302. – eng.; abs.: geo., eng., rus.
New
corrosion resistant Ti–8Ni–(0–5)%Si alloys with increased hardness and strength
are developed. After quenching from 9500C alloys have three phase structure and
they consist of a-titanium solid solution and compounds – Ti2Ni and
Ti5Si3. Silicon increases the tensile strength (1000 MPa)
and hardness (42 HRC) of alloys, but decreases their plastic properties.
Polythermal section of the phase diagram of ternary Ti–Ni–Si system alloys was
constructed on base of thermodynamic calculations. Corrosion testing in blood,
physiological solution, gastric juice and tissue liquid and also according to
the following regime: cleaning+disinfection + sterilization, revealed good
corrosion resistance of Ti–8Ni–1%Si alloy. This alloy Ti–8Ni–1%Si can be
recommended for manufacturing of high-strength medical tools and coating with
the purpose of hardening their working parts. Ti–8Ni–Si system alloys with
increased hardness and strength are not only suitable for medical tools but
also are improvements on currently used materials.
Auth.
10.C4.26.
Technologies of rendering harmless and regenerating solid and liquid inorganic
industrial wastes.
/G. Jandieri, G. Jishkariani, D. Sakhvadze, G. Tavadze/. Modern Technologies and
Methods of Inorganic Materials Science. Proceedings of International
Conference. – 2012. – pp. 303-317. – eng.; abs.: geo., eng., rus.
The
actual state of possibilities of regenerating and recycling of solid and liquid
inorganic industrial wastes occurring as a result of metallurgical industry and
avoidance of malicious anthropogenic impact they may have on mankind are
discussed. The innovative solid-phase recovery, high power pyro- and
SHS-metallurgy methods to regenerate and recuperate precious metals from the
metal-containing dispersive dust and sludge are suggested. The power-efficient
and eco-safe technologies, such are phyto-remediation and microbiological
bucking of metals are suggested. The results of the laboratory studies, the
proved economic and ecological feasibility for putting those results into
practice are provided.
Auth.
10.C4.27. Composite
materials reinforced by basalt and carbon hybrid fibers. /N. Chikhradze, L.
Japaridze, G. Abashidze, G. Pkhaladze/. Modern Technologies and Methods of
Inorganic Materials Science. Proceedings of International Conference. – 2012. – pp. 323-337. – eng.; abs.: geo., eng., rus.
The
results of a research work performed for the development of a technology for
fabrication of a matrix resin-based hybrid composites reinforced with carbon,
basalt fibers are presented. The problem consists in a partial or total
substitution of expensive carbon fibers in the material. An application of
hybrid reinforcing fibers will permit a considerable reduction of the item cost
without significant loss of physical-mechanical properties of the materials.
Auth.
10.C4.28. On determining the design capacity of a mine. /T. Pirtskhalava/. Mining Journal. – 2012. – #1(28). – pp. 46-49. – geo.;
abs.: rus., eng.
It is shown that when the mining-geological
and technological information are of the probabilistic nature, the production
capacity of a mine must be substantiated using the method of mathematical
modeling. A mathematical model with which the volume of coal may be formed at
the time of optimizing the design option of the mine (t) and the whole
optimization period (T) with the development process and time is given.
Auth.
10.C4.29. Perlit’s filtering powder - the valuable product
of Paravani perlite. /R. Sturua, G.
Samkharadze/. Mining
Journal. – 2012. – #1(28). – pp. 49-51. – geo.; abs.: rus., eng.
The “know-how” of a filtering powder from
Paravani perlite of the company “Paravanperlit” is developed and introduced. By
optimum selection of parameters of intumescing furnaces, mills, classifier and
cyclones, the highly waterproof filtering powders have been received. After
industrial check they have successfully been introduced at oil factories of
“Batoil” (fraction 0-630 micrometers ) and wine products “Kindzmaraulis Marani”
(0-300 micrometers).
Auth.
10.C4.30. Accounting of losses and dilution of ores of
the Chiatura manganese deposit and definition of their standard indicators. /A. Kikabidze, G. Shatberasvili,
The work shows the dependences between completeness of
extraction of stocks and expenses of their extraction. On the basis of these
dependences a technique of determination of the norms of losses and dilution of
the manganese ores, in the foundation of which lays the definition of quantity
of lost ore in the case when the expenses are equal to taken value of balance
stocks lays has been developed. The limit, beyond which the expenses for
extraction will not be compensated by value of mined ore in this time is
practically defined. The fact that depending on the mining and geological
conditions the standard losses of not beaten off ore in a roof or soil of a
developed layer varies in range of 1.5-7.5% is established. The resulting
losses of drilling and blasting works average 2.8%, and of incompleteness
scraping of face space average 2.7% from balance stocks.
Auth.
10.C4.31.
Comparison of thermal behavior of
manganese ores. /J. Mosia, M. Chumbadze, G.
Nikolaishvili/. Mecniereba da
technologiebi. – 2011. – #4-6. – pp. 85-88. – geo.; abs.: eng., rus.
The article presents thermal
analysis of manganese ores used in the manufacture of ferrosilicomanganese.
Conclusions about the optimal composition of the mixture of this alloy while
using them are drawn.
Auth.
10.C4.32.
Dependence of stretching force on the
crystallizer obliquity /I.
Zhordania, G. Kevkhishvili, J. Loria/. Bulletin of
At continuous casting, the quality of billet and
stability of the process depend on the quality of contact between the walls of
the crystallizer and the billet. The obliquity of crystallizer is one of the
effective methods to provide permanent contact between the crystallizer and the
billet along the whole length of the crystallizer. In the paper, the influence
of obliquity of the crystallizer on the stretching force of the billet is shown
by the example of a round billet. The results obtained are generalized to
rectangular billets.
Auth.
10.C4.33. The role of NACL and TiO2 in increasing the
adhesive strength between boronless and fluorineless ground enamels and steel. /I. Zedgenidze, A. Sarukhanishvili, M. Kapanadze, M.
Mshvildadze/. Transactions of the
The
influence of NaCl and TiO2 on the adhesive strength between production
of technogenic materials, boronless and fluorineless enamels and steel is
discussed. It is supposed that TiO2 serves as both the fusible and adhesive
component. NaCl, together with TiO2, contributes to the formation of mobile
silicate structure units, which supply definite intermediate layer forming ions
(CO2+, Ni2+, Ca2+, Ti4+) to the
“steel-enamel” interface.
Auth.
10.C4.34.
Investigation of direct martensitic transformation
in metastable titanium alloys. /N. Gapishvili,
K. Gorgadze, T. Berberashvili, T. Khechiashvili, Sh.
Khizanishvili, V. Khutsishvili/. Nano Studies. – 2012. – #
6. – pp. 105-114. – geo.
The possibility
of direct martensite
transformation in Ti – Ta and Ti – Nb bmeta metastable alloys is investigated the. It is shown that in some bmeta metastable alloys cooled below room temperature, the b ®
α transition
is only partial. During the “heating–cooling” cycles, the
formation of high-moduled state in some bmeta metastable alloys was found.
Auth.
C5.
Mechanical Engineering. Instrument-making
10.C5.1. Dynamics of a potato planter aggregate with
variable mass. /R.
Makharoblidze, G. Chitaia, Z. Zhorzholiani, G. Dalakishvili/. Bulletin of the
Academy of Agricultural Sciences of
By the example of a
potato planter aggregate the dynamics of transient processes with taking into
account a gradual decrease of the mass of root and tuber crops in bunker of a planting
machine is studied. The design formula for speed change upon movement of the
aggregate is derived and dependence of the speed on the parameters of engine,
tractor and technological machine in relation to a gradual decrease of
agricultural materials in the bunker is determined.
Auth.
10.C5.2. More
efficient use of plows. /J.
Katsitadze,
Recommendations on the improvement of the
efficiency of
use of plows
are presented; at
the level of invention,
a plow
with variable
widths
is developed and
the principally new scheme of coupling the tractor with the
mounted plow id justified.
Auth.
10.C5.3. Indicators
of serviceability of cultivators during operation under mountain conditions. /N. Sarjveladze/. Bulletin of the Academy of Agricultural
Sciences of
The article
surveys the results
of theoretical and experimental
studies of the serviceability of cultivators during
operation under mountain conditions in Samtskhe-Javakheti region. The statistical data and complex
indicators of serviceability are established.
Auth.
10.C5.4. Justification of geometric parameters of a
thinner blade of tillage combined machines. /M. Kvartshkava/. Bulletin of the
Academy of Agricultural Sciences of
The
interaction of an opener plant with soil and the forces affecting the plant’s
operation during the combined machine’s being out of balance are considered.
The geometric parameters of thinner blades are justified.
Auth.
10.C5.5. Results of an experimental study of a combined tillage machine.
/M. Kvartskhava/. Bulletin of the
Academy of Agricultural Sciences of
A
study of the operation process of a combined tiller is given.
Using the mathematical
theory
of experiment planning,
the input factors
and
output
parameters
had been determined, according to which
a planning matrix and the actual experiment conduct plan were drawn up.
The regression equation
was received and tested for significance and adequacy.
The
optimal
values
of the input factors
at which the output
parameter
achieves the optimum
value
were established.
Auth.
10.C5.6. Determination of technological, operational and
economic indicators of a combined tillage
machine. /D.
Natroshvili, M. Kvartskhava/. Bulletin of the Academy of Agricultural Sciences
of
The article shows a
way of determining technological, operational and economic indicators of a
combined tillage machine. Using a modern technique, the expected economic
benefit and other operational indicators, such as specific working costs,
specific industrial expenses, absolute profit, the sum of non-productive
payments, net profit and term of return of capital investments have been determined.
Auth.
10.C5.7. Theoretical and experimental study of a
pneumatic-transport system of
nut-harvesting aggregate. /F. Varshanidze/. Bulletin of the Academy of
Agricultural Sciences of
The
article deals with the aerodynamic research of a nut-harvesting aggregate
pneumatic-transport system on the basis of reference data and characteristic
features of nuts. The analytical equation of the balance of power developed
and used by a ventilator is derived.
Auth.
10.C5.8. Forecasting the number of tractors required for
mechanized plant production. /O. Karchava, D.
Natroshvili/. Bulletin of the Academy of Agricultural Sciences of
The methods of
forecasting the number of farm tractors necessary for the country’s
agricultural sector are given. These methods provide for the specifics of
different regions, production technologies for annual and perennial
agricultural crops, the areas being currently under crops, the power intensity
of each mechanized farming operation, and the required tractor capacities. The
methods have been tested for the whole country and the number of tractors
according to their power required for carrying out planned mechanized
operations has been determined.
Auth.
10.C5.9. Direct-flow hurricane ventilator. /R. Ghazhomia, R. Margalitadze, F. Varshanidze/. Bulletin of the
Academy of Agricultural Sciences of
The paper concerns a
direct-flow hurricane ventilator function, the principles of aerodynamic
operation and the possibility of their usage in small-scale mechanization facilities. The
operational principle of the aerodynamic scheme is discussed and its key
parameters are theoretically proved.
Auth.
10.C5.10. Analysis of the shape and
size of the rectilinearly moving cutting segment of a cutter. /F. Abuselidze, M.
Mamuladze/. Bulletin of the Academy of Agricultural Sciences of
The geometric sizes
and shapes of a cutting segment of the rectilinearly moving segmental cutter
are presented, on which the quality and effectiveness of the mowing process in
a mowing machine depend. The methods of studying the cutting segment of a
pre-production model and the optimum alternative received as a result of the
segment’s operation are tested on a test bench. Namely, 4 segments were found
to demonstrate good operation, which shall facilitate the effective conduct of
the mowing process under small-contour plot and mountain conditions. The test
bench tests produced statistical series of the number of cut stems. As a
result, their theoretical and empirical distribution was carried out according
to the Kolmogorov convergence criterion P(λ)= 98%, which is quite
acceptable for the production process of mowing.
Auth.
10.C5.11. Analysis of the interaction
of a rectilinearly moving segment of a segmental cutter with the stem. /M. Mamuladze, F.
Abuselidze/. Bulletin of the Academy of Agricultural Sciences of
Analysis
of the interaction of a rectilinearly moving segment of a segmental cutter with
stems is given, considering, in particular, the cutting speed, the angle of the
segment, the segment’s height and width, as well as the physical and mechanical
properties of the stem and the forces acting on them during cutting. The stem
is distributed along the OX axis in three parts, in the form of ellipse; the
cutter’s movement on the L1 L2 L3 section the PL1 PL2 PL3 forces acting on the
blade are calculated per each section, and finally the cutting resistance
values Acut in accordance with 17-19 m/s speed of the blade, which
significantly determine the performance of the cutter and meeting the following
criteria: reliability, power intensity, high quality and fast mowing process.
Auth.
10.C5.12. The economic rationale of using means
of mechanization
in sericulture. /I. Korchilava/. Bulletin of the
Academy of Agricultural Sciences of
The
paper presents the economic rationale
of using means of
mechanization in sericulture
under conditions of farms; in particular, the methods enabling a
comparative analysis of economic indicators technical facilities used in
sericulture and the economic efficiency of such use have been developed.
Auth.
10.C5.13. Modern
state of scanning electron microscopy. /A. Berner/. Modern Technologies and Methods
of Inorganic Materials Science. Proceedings of International Conference. – 2012. – pp. 51-57. – eng.; abs.: geo., eng., rus.
Two main tendencies in modern SEM design were
considered. The first is the development of SEM optics operating successfully
at low energies of the electron probe down to 200 eV in order to achieve
simultaneously high resolution and a strong image contrast. The second is the
development of a detector system allowing high resolution imaging in different
signals exhibiting different types of contrast: topographic, orientation,
Z-contrast and phase contrast.
Auth.
10.C5.14.
Design of radial forging machines and
scope of their application. /S. Mebonia, T.
Natriashvili, M. Mikautadze, D. Demetradze/. Metsniereba da teknologiebi. –
2011. – #4-6. – pp. 89-96. – geo.; abs.: eng., rus.
The article deals with the
existing design of radial forging machines. Based on analysis of mechanisms and
units of these machines their main advantages and disadvantages are identified.
In respect of manufacturing economy, the most efficient type of radial forging
machines – the lever forging machines - is established It belongs to the
wedge-lever machines developed by the Chair of Metal Forming of the
Auth.
10.C5.15. Stress-strain condition of contour tools in
the treatment of cylindrical surfaces. /O. Kikvidze,
The article considers differential equations of two dimensional
nonstationary thermoelasticity problems for calculating a cutting tool. The
initial and boundary conditions are identified.
Auth.
10.C5.16. Optimization
of parameters of polymeric balloons reinforced by basaltic thread. /M. Shvangiradze/. Transactions
of the
Demand for industrial metal materials
increases every day. But their reserves are limited. One of the ways of problem
settlement is the development of production technologies of composites made in
the aggregate of fibrous materials with polymer resins. One of the cheapest and
interesting materials is basalt fiber-thread. As such an example can be
considered polymeric balloon of high pressure reinforced with fibrous thread,
for example, basalt. The sizes of balloon are known to change on a rather wide
scale, to have different purposes and differ by the developed pressure. Such
conditions set a task of development of a method for optimization of the
balloon parameters. The article offers the method that creates a possibility to
identify its major technological parameters prior to its manufacture. Out of
these parameters, the pressure developed in the balloon, the liner sizes and
the total length of the fiber necessary for strengthening are of particular
importance.
Auth.
10.C6.1. Improvement of methods
of molding parts of clothes using polyester-isocyanate composites. /M. Datuasvili/. Proceedings of the Georgian
National Academy of Sciences. Chemical Series. – 2012. – vol. 38. – #1. – pp.
101-103. – rus. abs.: geo., eng.
The article discusses the molding of parts of
ready-made garments from polyester-isocyanate composites. Based on the
organoleptic evaluation of manufactured pre-production models it was
established that damages of molded part’s surface result from the reaction
going between isocyanate and the mould’s surface lubricant, while the
heterogeneity of pores and air bubbles is conditioned by the processes of
pouring the mixed mass in the mould. Based on the experimental data the
temperature conditions for setting the parts formed from the
polyester-isocyanate composites were established.
Auth.
10.C6.2. Structural
transformation of artificial fur in the process of formation of ultrasonic
welded seams. /N.
Dolidze/. Proceedings of the Georgian National Academy of
Sciences. Chemical Series. – 2012. – vol. 38. – #1. – pp. 107-109. – rus. abs.:
geo., eng.
The work deals with
the questions of physical and chemical transformation of artificial fur in the
course of formation of welded seams during ultrasonic welding. Study of
structural changes in the artificial fur in the process of ultrasonic welding
was carried out by differential-thermal and thermogravimetric analysis of the
initial material (artificial fur), the artificial fur’s welded seam and the
polyacrylonite fiber. As a result it can be concluded that the thermal behavior
of the artificial fur’s welded seam depends on the properties of its fringe
(polyacrylonite fiber). Both the welded seam and the polyacrylonite fiber are
characterized by one exothermal peak. A dramatic loss of weight in the
artificial fur’s welded seam begins at 260°C and makes 35%, which is indicative
of a destructive process in the artificial fur caused by ultrasound action.
Auth.
10.C7.1. Technological process of making natural bread
conditioners from red-grape variety. /N. Baghaturia,
Phenolic substances of grapes occupy a special place among other biologically active food substances. A technological process of making natural bread conditioners from a red-grape variety is given.
Auth.
10.C7.2. Investigation of proteolytic enzymes in grapes and
wines. /N. Baghaturia, T. Nanitashvili,
The article discusses
significant changes in the activity of proteolytic enzymes depending on a
variety of grapes. A comparison between white-grape and red-grape varieties in
terms of their activity is presented. The role of proteolytic enzymes in the
process of winemaking (fermentation, ripening, treatment, etc.) is discussed.
Auth.
10.C7.3. Developing a new range of
functional bakery products by using grape pectin. /N. Baghaturia, Sh. Muladze, I. Kupatadze, M. Kereselidze, N. Gilauri, L.
Kotorashvili, Z. Alania/.
Agrarian-economic Science and Technologies. – 2012. – #3. – pp. 45-51. –
geo.; abs.: eng.
For raising the quality of functional bakery products
different conditioners are used. Surfactants are widely used as key
conditioners, which enables to intensify bakery production and improve the
product quality. Nowadays, grape pectin and the substances extracted from it
are widely used as surfactants in bakery production. The article focuses on the
properties of pectin that ensure improvement of the quality of bakery products.
Auth.
10.C7.4. Study of pectin substances of
widely spread in
The work aims at maximum using of raw materials and
searching for new resources in food industry. In order to meet the population’s
demand for quality food products, the processing of a wider range of products
based on local raw material should be enhanced.
Auth.
10.C7.5. New types of food products and study of their action during
iron-deficiency anemia. /A. Khotivari, G.
Grigorashvili, I. Kupatadze,
For the purpose of raising the nutritive value of food products
different blends of wild growing berry and fruit juices were used. Chemical
analysis of a number of fruits and berries showed that grapes and hips are
characterized for high content of iron and ascorbic acid as compared with other
fruits and berries, which served as the main criterion for their use as blends
in the manufacture of different food products. The article discusses different
doses of blends in the process of preparation of such products and the
favourable action of such products on the health of patients, mainly children.
Auth.
10.C7.6. Dried citrus marc as a food additive and
semi-product in the production of pectine and vitamin P. /N. Alkhanashvili/.
Agrarian-economic Science and Technologies. – 2012. – #2. –
pp. 39-42. – geo.; abs.: eng.
The article is dedicated to the utilization
of waste originated during processing of citrus juices. The marc formed as a
result of citrus processing contains sugars, pectin, vitamins, but because of
its high humidity is a perishable product and needs to be dried immediately.
The dried citrus marc production technology has been worked out in the
Auth.
10.C7.7. Lemon balm cultivation
prospects in
Lemon balm is an aromatic perennial plant growing wild in
Auth.
10.C7.8. Researching
new species of products enriched with pectin. /N. Baghaturia,
Wild plum plant
is widely spread in Georgia, occupying 21-22% of the total area of orchards and
10% of the area under stone fruits. Wild plum plants are mainly spread in the
West Georgian regions, where they account for 20% of the total orchard area.
New technologies for making preventive cure products from the pectin-rich wild
plums have been studied.
Auth.
10.C7.9. The use of citrus processing waste in
confectionery industry. /N. Baghaturia, N. Begiashvili, L. Kotorashvili, M.
Ormotsadze, Sh. Muladze, B. Baghaturia/.
Agrarian-economic Science and Technologies. – 2012. – #2. –
pp. 55-59. – geo.; abs.: eng.
The Georgian Research Institute of Food Industry has developed a waste-free citrus processing technology. Hydrothermal processing of citrus peels yields essential oil. Study of the chemical composition of production waste demonstrated that its liquid phase contains up to 20% solid, water soluble pectin and reducing sugar. It can be used as semis in the production of nonalcoholic drinks. Thermal treatment of citrus fruits does not cause the destruction of vitamin P. The solid contains 30% total sugar, 79.9% total pectin, 100% vitamin P. The dried and ground peel can be used as vitamin-added flour in confectionery industry.
Auth.
10.C7.10. The effect of high-voltage electric field on the keeping property of
apples. /E. Uturashvili, M. Kereselidze,
The article considers the development of a fruit and
vegetable keeping technique providing preliminary processing of apples by
high-voltage electric field with the subsequent keeping in plastic sacks with
air selective membranes. The preliminary processing in the electric field
hinders the development of microflora on the fruit surface and helps to reduce
the loss caused by infectious diseases. As a result of it the standard
production of experimental apple products are 1.5 – 3.0% more than the
appropriate indicator of test samples. The optimal regimes of apple processing
in the high voltage electric field have been chosen, which provide to extend
their keeping period for 270 calendar days. The method, on the whole, provides
the reduction of infectious diseases, increasing the vitality of products and
maintaining their commodity or food values for a long term.
Auth.
10.C7.11. Development of a technology for extracting
polyphenols from the grape processing
waste /A. Khotivari, G.
Grigorashvili, I. Kupatadze, N. Iluridze/. Agrarian-economic
Science and Technologies. – 2012. – #2. – pp. 75-81. – geo.; abs.: eng.
The article considers biochemical indicators of the secondary products of
grape processing (stones, husks) and their changes in the processing. The
methods and the rational practice for producing bioactive extracts are
discussed. As a result of research, optimum technological process parameters
are established. The physical-chemical indicators of the extract are
determined.
Auth.
10.C7.12. Biochemical characteristics
of sea-buckthorn fruit and perspectives of its use. /V. Nakopia, N.
Baghaturia, E. Uturashvili, I. Kupatadze, Z. Alania/. Agrarian-economic Science and Technologies. – 2012. – #2. –
pp. 82-88. – geo.; abs.: eng.
The
work present the results of a biochemical research of wild-growing shrub plant
– sea buckthorn (Hippophae rhamnoides) under conditions of
Auth.
10.C7.13. Lactose
separation from waste water of milk production (whey), its concentration and receiving
of technological water by the help of membrane unit. /G. Bibileishvili/. Metsniereba da teknologiebi. – 2011. – #4-6. – pp. 110-113. – geo.; abs.: eng., rus.
The carried out
experimental work aimed at receiving a lactose solution concentrate by reverse
osmosis, as well as selection of a special type of membranes for the laboratory
unit and the establishment of optimal parameters with the help of laboratory
experiments.
Auth.
10.C7.14. Safe food production - the essential
condition of ecological development of a country. /M.
Garuchava/. Metsniereba
da Tskhovreba. – 2012. –
#1(5). –
pp. 85-87. – geo.; abs.: geo.,
eng., rus.
The
article deals with the basic issues of the policy and strategy of food safety
in the country. The influence of the country’s ecological condition on
production of safe food is discussed. A food safety assessing technology is
proposed.
Auth.
10.C7.15. Determining percentage of ashes in savory (Satureia laxiflora C. Koch) spread in
Georgia /N. Gelovani, T.
Tsintsadze, KH. Tsikarishvili, I. Metreveli, L. Targamadze/. Transactions
of the
The content of active
substances in a medicinal plant stock is generally low. Results of analysis of different
samples of the same plant taken at the same time depend on soil, the
correlation of leaves and stems, and many other factors. 3 samples of savory
were analyzed for their content of ashes: 2 wild samples were taken on the bank
of the Kvirila River, in Western Georgia, and 1 sample of cultivated savory
(for the sake of comparison) – in Mtskheta district, Eastern Georgia. All the
samples were analyzed for their content of total ash and the ash insoluble in
10% ÍÑ1, which remains after processing the total ash and is generally composed
of silicates.
Auth.
10.C7.16. Changes in flavonoids and
antioxidant activity of Kakhetian- and Imeretian-type wines. /T. Shonia, M.
Bezhuashvili, T. Buachidze/. Georgian Engineering News. – 2012. – #3. – pp. 104-107.
– eng.; abs.: rus.
The
IR spectra of unidentified products of transformation of quercetin and
dihydroquercetin during alcoholic fermentation are discussed. The antioxidant
activity of these products was determined. It i`s shown that the antioxidant
activity of Kakhetian- and Imeretian-type wines depends on phenolic compounds.
A significant decrease in the antioxidant activity in the oxidized wines was
revealed.
Auth.
C8. Construction. Architecture
10.C8.1. Experimental study of basalt
fiber reinforced concrete. /D. Nozadze, P. Ejibia/. Modern Technologies
and Methods of Inorganic Materials Science. Proceedings of International
Conference. – 2012. – pp.
318-322. – eng.; abs.: geo., eng., rus.
Fiber reinforced composite materials
consist of high strength fiber embedded in a matrix. In this form, both fibers
and matrix retain their physical and chemical identities, yet they produce a
combination of properties that cannot be achieved with either of the components
acting alone. In general fibers are the principal load carrying members, while
the surrounding matrix keeps them in the desired locations and orientation,
acting as a load transfer medium and protects them from environmental damage.
BFRC is a composite material that uses fine sand, cement, water, other
admixtures and basalt fibers.
Auth.
10.C8.2. Prospects of complex use of local volcanic rocks in production of glass
and construction materials. /E.
Shapakidze, G. Nadareishvili, R. Kvatashidze, V. Maisuradze, M. Nadirashvili,
I. Gejadze, M. Tkemaladze/. Mining Journal. – 2012. –
#1(28). – pp. 12-16. – geo.; abs.: rus., eng.
A
series of acid volcanic rocks of southeast
Auth.
10.C8.3. Use of
building stones and facing stones and technical requirements to them. /N. Bochorishvili, D. Danelia, A. Bezhanishvili, I. Bochorishvili,
The article considers principal problems of using facing
stones in civil engineering and architecture. Depending on the sphere of application,
facing stones can be divided into three groups: the first group includes the
stones free from considerable mechanical loads. Slabs made from these stones
may be used for facing internal and external surfaces of a building. The stones
used for facing external surfaces must be steadfast to the environment and
strong. The second group includes the stones that can stand considerable
mechanical loads, are distinguished by their physical and mechanical properties,
and considerable resistance to environment changes. The group includes the
stones applied for erecting monuments and large decorative-architectural details.
Auth.
10.C8.4. Principal properties and types
of building and facing stones. /N. Bochorishvili, D. Danelia, A. Neverov, I. Bochorishvili,
The
article deals with the durability of building and facing stones and their
decorative cost. The data on durability of different types of facing stones are
given; it is established that idiochromatic colour and color durability are of
great practical importance. The physico-mechanical properties of facing stones
are also affected by porosity, which determines to a great extent their
moisture capacity, water and air permeability.
Auth.
10.C8.5. Calculation
of a pile-supported low raft. /T. Kikava/.
Hydroengineering. –
2012. – #1-2(11-12). –
pp. 27-33. – eng.; abs.: geo., eng., rus.
The calculation
method of a piling is proposed. A system of linear equations for determining
the unknown forces originating in the nodes of plate strips intersection is
formulated. After that each strip with applied forces is considered and
calculated separately as the beam lying on the linearly-deformed base. The
concrete engineering task is considered. Calculation formulas are given.
Auth.
10.C8.6. Modeling a pavement microprofile. /S. Esadze, G. Shilakadze, R. Dzneladze/. Transactions
of the
The
article describes the asphalt-concrete pavement modeling method. The standard
assessment of the pavement is deemed to comply with a “good” condition. The
probabilistic characteristics of the modeled pavement have been obtained. By
means of these characteristics it is possible to determine the dynamic load on
pavement if the pavement microprofile is considered as the dynamic disturbance.
Auth.
10.C8.7. Analysis and examination of ecplogically-oriented town-building
investment projects. /G. Salukvadze, T.
Tatarashvili, M. Tavkhelidze/. Transactions of the
The
methods of analysis and examination of a construction project that can be
successfully applied in assessing and adjusting town-building projects are
considered.
Auth.
10.C8.8. Architectural and planning structure, composition and aesthetics of small
towns of the
The article deals
with the problem of transforming a network of historically established settlements
of Azerbaijan into a single integrated system, based on the interaction of
qualitatively new forms of settling (a group system of settlements), which is
among the most important socio-economic and planning problems and which can be
solved by the regional pattern of settlement of Azerbaijan.
Auth.
10.C8.9. Strategy for the stable development of
The research of urban
planning practice of the Azerbaijan Republic currently implemented in cities
and regions of the country has indicated that attempts to develop the mechanism
of influence on the development of settlement system are conducted in many
directions: 1) in the field of ground relations, 2) in search of creative
judgment ways of structural changes of city formations, 3) in the development
of new methodological data, 4) in the creation of a regional normative and
legislative base, 5) in the refusal of the centralized and scheduled designing
and construction, 6) in search of new forms of designing and refusal of
traditionally accepted town-planning projects, etc. Therefore, the necessity of
comprehensive planning and a system approach to the solution of strategic tasks
of stable development of
Auth.
10.C8.10. Destruction of coastal infrastructure and cultural objects of
The coastal
infrastructure and historical landscapes of
Auth.
10.C8.11. Rehabilitation of the architectural environment of
The necessity of
rehabilitation of the urban environment is one of the most topical subjects of
architecture. The problem is less investigated in its pure form and requires
collaboration with experts of related professions. The means of architectural
rehabilitation of the downtown are given by the example of environmental
fragment analysis.
Auth.
C9. Agriculture and
Forestry. Fishery
10.C9.1. The effect of heteroauxin on
the rooting of imported sweet cherry rootstocks F12/1 (Mazzard) and Colt. /L.
Aleksidze-Dzamashvili/. Bulletin of the Academy of Agricultural Sciences of
Heteroauxin is a
traditional and highly effective growth promoting hormone widely used for
rooting and growth of different plants. In 1997, sweet cherry rootstocks F12/1,
Gisela and Colt were brought to
Auth.
10.C9.2. Modern sweet cherry dwarfing
rootstocks and prospects of their
use. /L.
Aleksidze-Dzamashvili/. Bulletin of the Academy of Agricultural Sciences of
The article deals
with the problem of rejuvenation of extensive and intensive orchards in Georgia
and improvement the quality of their yield, which can be implemented through
introduction of, but frankly speaking, the most of orchards are old enough and
there-produced products are of low quality and non-competitive. The intensive
orchards require young plants grafted to undersized rootstocks; therefore,
study of dwarfing rootstocks is rather important.
Auth.
10.C9.3. Materials on diatoms (Bacillariophyta) from the
Twenty six
representatives of classes Coscinodiscophyceae
and Fragilariophyceae (division Bacillariophyta) were identified in
ponds of the
Diatoma moniliforme and Fragilaria vaucheriae, noted for wide
and quantitative distribution. Rather widely distributed are also Diatoma hiemala and Meridion circulare. Other species are met rarely and in a small
amount, or even as single specimens. 25 out of 26 species of diatoms found in
the ponds of
Auth.
10.C9.4. Seed-growing of onion variety “Tsiteli-54”. /E. Motiashvili, Z. Sapatov, N. Kakabadze. M.Barisashvili/. Bulletin of the Academy of Agricultural
Sciences of
The process of
selection and seed-growing of a new onion variety “Tsiteli-54”, which is
resistant to pests and diseases, is unicellular, flat-shaped, moderately
bitter, and noted for best storage capacity is discussed. The economic and
qualitative properties of the variety seeds are studied.
Auth.
10.C9.5. Studying simple and complex
hybrids of water-melon and melon. /Z. Sapatov, E. Motiashvili,
The study of simple
and complex water melon and melon hybrids have established that the hybrid
vigor (heterosis) is revealed to a greater extent in the hybrid combinations,
in which local varieties are taken as a maternal form, while the geographically
remote varieties – as paternal. In simple water melon hybrids productivity
increased in comparison with the best parental form by 10-30 c/h, while in
complex hybrids – by 10-20 c/h. The content of total sugars in simple hybrids
as compared with local varieties increased from 1.15% to 1.6%, while in complex
hybrids – from 1.0% to 1.3%. By the total sugar content the complex hybrids and
best parental forms are close to each other and there is no sharp difference
between them.
Auth.
10.C9.6. The use of common laurel cherry (Laurocerasus officinalis M.) plantings for
recreational and medicinal purposes. /A. Bajelidze, N.
Alasania, N. Lomtatidze,
Auth.
10.C9.7. Pecularities of stevia (Stevia rebaudiana) propagation by seed.
/Ts.
Kashakashvili, N. Oragvelidze,
Development of stevia
(sweetleaf) seed takes place in a normal sexual way and is formed with full swelling
ability. Since stevia is a tropical plant, low temperatures adversely affect it
growth and development. Hence its seed viability greatly depends on climatic
conditions, namely on temperature.
Auth.
10.C9.8. The
effect of physical-geographical factors of a locality on wine materials (by the
example pf some grape varieties). /G. Gagua, V.
Gogitidze/. Bulletin of the Academy of Agricultural Sciences of
The article deals with the
effect of
Kakheti and Racha-Lechkhumi
conditions on
some grape varieties - Manavis Mtsvane, Kindzmarauli and Khvanchkara.
The climatic
and
soil
conditions are
the most important among the physical-geographical factors that together
with the grape
variety provide
the wine specificity.
Auth.
10.C9.9. The prospects of utilization
of local aluminum silicates in ensuring wine quality. /Sh. Japaridze/. Bulletin of the
Academy of Agricultural Sciences of
The
article reviews the effects on stabilization and clarification of different
types of table wine, both white and red, processed by local, natural and
modified aluminum silicates. It shows a perspective for local, modified
bentonitic clays for this purpose.
Auth.
10.C9.10. On the issue of
double cropping fig in Kvemo (Lower) Kartli. /V. Gogitidze, G. Gagua/. Bulletin of the Academy of Agricultural
Sciences of
The study deals with feasibility of permanent provision of users with
fresh-picked fig during four months by technique of natural (geographical)
conveyer.
Auth.
10.C9.11. On the issue of
restoration and expansion of apple production in
Georgia. /G.
Gagua. V. Gogitidze/. Bulletin of the Academy of Agricultural Sciences of
Georgia. – 2012. – #30. – pp. 48-52. – geo.; abs.: geo.,
eng., rus.
The article provides
recommendations on restoration and expansion of apple production in mountain
areas of Georgia, including selection of frost-resistant varieties, arrangement
of windbreaks, etc.
Auth.
10.C9.12. Biomorphological
peculiarities of Japanese quince (Chaenomeles
japonica Lindl) under conditions of Batumi Botanical Garden. /E. Machutadze/. Bulletin of the
Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 53-56. – geo.; abs.: geo.,
eng., rus.
The vast distribution
of the Japanese quince in the world botanical gardens was preconditioned by not
only the aesthetic qualities but the chemical composition of the fruit as well. The fruit of Chaenomeles
represents a store of vitamins and biologically active substances, owing to
which it can replace expensive lemons. The various decorative shapes with multi-colored
flowers have gained special popularity. The Japanese quince is easily
reproduced with grafts and seeds. In the late autumn seeds are taken out of
fruits and sowed in soil during winter to pass natural stratification. In
spring the whole growth can be received. In vegetative reproduction the
Chaenomeles is reproduced with grafts (in summer) or bending and shrub division
(early spring or autumn). In spring sowing period it is necessary to make
3-month stratification of Chaenomeles seeds. The speed of seed and seedling
growth is high, the seed-germination ability is 45-50%, graft rooting – 100%.
Plants reproduced with seeds begin blooming on the 3rd and 4th
year. The medicinal qualities of Japanese quince are preconditioned by the
composition of C vitamin and phenol compounds.
In particular, they are used in medicine against inflammation, capillary
hardening and sclerotic cases. Owing to the consistency of pectin the Japanese
quince fruit is useful for people living in the zones contaminated with
radionuclide as well as people working at health hazardous factories. The
flower potion is used against coughing, bronchitis, trachyte, and the seeds are
used against burnings. The Japanese quince is widely used in greenery to create
hedges, curbs and rocky gardens. The shrubs are used in groups as well as
singles in lawns and rock gardens.
Auth.
10.C9.13. Leaf-mining sawflies (Hymenoptera: Pamphilidae;
Tenthredinidae; Argidae; Ccimbicidae) in forests of Georgia. /A.
Supatashvili, N. Goginashvili/. Bulletin of the Academy of Agricultural
Sciences of Georgia. – 2012. – #30. – pp. 57–65. – geo.;
abs.: geo., eng., rus.
In the article 63 species of leaf-mining sawflies of
foliage forest in Georgia are given, they belong to 4 families: Pamphilidae – 2 species, Tenthredinidae - 47 species, Cimbicidae - 4 species, and Argidae - 10 species. Out of them 33
species are identified for the first time for the fauna of Georgia.
Enumeration of all these species is given.
Auth.
10.C9.14. The impact of
livestock grazing on natural restoration of beech groves in Adjara. /A.
Dzirkvadze/. Bulletin of the Academy of Agricultural Sciences of
Georgia. – 2012. – #30. – pp. 66–69. – geo.; abs.: geo., eng., rus.
The
article considers the adverse effect of livestock grazing of various
frequencies on natural restoration of beech groves in Adjara. The data are
taken from beech groves of different densities growing at various altitudes
above sea level. Relevant recommendations are given.
Auth.
10.C9.15. The peculiarities
of formation of the upper parts of shoots of dark coniferous species. /A.
Dzirkvadze/. Bulletin of the Academy of Agricultural Sciences
of Georgia. – 2012. – #30. – pp. 70-72. –
geo.; abs.: geo., eng., rus.
The
increase in size and growth in height of the upper parts of offshoots of spruce
and silver fir the optimal zone of spruce and silver fir forests of Adjara is
discussed.
Auth.
10.C9.16. Typological
classification of Adjarian fir-tree and silver-tree fosests. /R.
Vasadze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 73-79. –
geo.; abs.: geo., eng., rus.
The
article deals with a typological classification of Adjarian fir- and
silver-tree forests. In ecological groups are incorporated biologically similar
basic and secondary forest types, which are considered according to their
location (ecotype) at different altitudes above sea level. Each forest type is
characterized according to forest evaluation
data, such as: composition, growth class, density, average height and diameter
of the planting, also altitude above sea level, layout, sloping, soil depth,
genetic origin, etc. Respective forest improvement measures for each forest
type are set up.
Auth.
10.C9.17. The peculiarities of
formation of a root system of saplings of dark coniferous species in various
soil types (by the example of Adjara and Artvin). /A. Dzirkvadze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 80-83. – geo.; abs.: geo.,
eng., rus.
The peculiarities of
formation of a root system of saplings of dark coniferous species in various
soil types by the example of Adjara and Artvin are discussed. To study the said
peculiarities, the data were collected on brown forest soils in the optimal
spreading zone of spruce and silver fir and the mountain-forest soils on the
upper zone of distribution. According to the study results, formation of the
root system of saplings of spruce and silver fir developed better on the brown
forest soils in the optimal zone of their distribution.
Auth.
10.C9.18. Tea diseases. /L. Beradze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 87-90. – geo.; abs.: geo.,
eng., rus.
50 kinds of different
fungi were revealed by researches carried out by in 2006-2010, of which 18
kinds for the first time. Particularly noted for harmfulness and spread are:
gray spot diseases, brown spot diseases, Cladosporium, Alternaria alternata, and Cercospora theae.
Auth.
10.C9.19. Nut micobiota. /L. Beradze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 91-93. – geo.; abs.: geo.,
eng., rus.
51 different kinds of
fungi were revealed on nut plant in the humid subtropical zone of West Georgia.
Out of them particularly harmful are: Piggotia
coryli, Botritis cinerea, Alternaria alternata, Pestalotiopsis gyepini, Trichothecium roseum,
Fusarium sambucinum, Fusarium gibbosum, Phyllactinia gutata.
Auth.
10.C9.20. Safe method for biological
control of locust. /K.
Pavliashvili, E. Abashidze, M. Machavariani/. Bulletin of the Academy of
Agricultural Sciences of Georgia.
– 2012. – #30. – pp. 94-97. – geo.; abs.: geo.,
eng., rus.
The results of a search for safe locust control
methods are presented. Tested concentrations of a local strain of the
entomopathogenic fungus Beauveria
bassiana isolated from a locust have been found to be effective and causing
mortality of the locust. The optimal concentration of sporocidal suspension of
the local strain has been identified, which can be considered as a potent and
ecologically safe method of biological control of locust pests in Georgia.
Auth.
10.C9.21. Effectiveness of modern
insecticides and their combined mixtures against fruit moths. /E. Orjonikidze, N. Berianidze/. Bulletin of the Academy of Agricultural
Sciences of Georgia. – 2012. – #30. – pp. 98-101. – geo.; abs.: geo., eng., rus.
The
article considers the results of effectiveness study of modern insecticides and
their mixtures used to control
moths spread in orchards. The character of a combined action of different
pesticides on the mentioned pests is established. The synergic effect of combined
mixtures is found. The toxicological characteristics of the tested insecticides
are given.
Auth.
10.C9.22. The species composition of
stevia pests in West Georgia. /A. Nikolaishvili/. Bulletin of the Academy of Agricultural
Sciences of Georgia. – 2012. – #30. – pp. 102-105. – geo.; abs.: geo., eng., rus.
The
article enumerates the following pests that damage the stevia plant West
Georgia: Trialeurodes vaporarium (Westwood); Coccus hesperidum L.; Tanymecus
dilaticolus Gyll.; Boarmia salenaria Schiff.; Philaenus spumarius L.; Cicadella
viridis L.; Ricania japonica Mclich.; Cercopis vilnerato L.; Heliothrips
haemorhcidalis B.; Tetranychus telarius L.; Tetramerium caespitum L.; Forficula
euricularia L (Agretanum); Mollusca; Arachnoidae; Tortricidae; Microtus
arvalis. The above-mentioned pests are polyphagues insects having migrated to
stevia from neighboring plants.
Auth.
10.C9.23.
The efficiency of modern pesticides against San Jose scale (Quadraspidiotus
perniciosus Comst). /T. Gogishvili, I. Bujiashvili/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 106-107. – geo.; abs.: geo., eng., rus.
The authors present some aspects of spread of San Jose
scale (Quadraspidiotus perniciosus
Comst) in fruit orchard and their pernicious effects. The study presents the
results of testing of eight modern pesticides: Actellik, Safagor, Karate,
Detsis -Extra, Valsamba, Fury, Confidor and Sultan. In all the cases the high
efficiency was achieved.
Auth.
10.C9.24.
Distribution of wheat yellow blotch in Georgia. /L.
Gorgiladze, G. Meparishvili/. Bulletin of the Academy of Agricultural Sciences
of Georgia. – 2012. – #30. – pp. 108-111. –
rus.; abs.: geo., eng., rus.
Commercial
and private wheat fields’ observation was conducted in 2008-2010 in different
geographic zones of Georgia. Yellow leaf blotch of wheat has been identified as
dominant disease among wheat foliar diseases. The causal agent of Pyrenophora tritici repentis has been
isolated from diseased samples in pure culture.
Auth.
10.C9.25. Occurrence
of barley powdery mildew in Georgia. /Ts. Tsetskladze, G.
Mepharishvili, M.Gabaidze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 112-115. –
geo.; abs.: geo., eng., rus.
The results of barley fields’ survey conducted in 2008-2010 in different
geographic zones of Georgia are given. Barley powdery mildew
was spread in all the investigated zones and varieties. Incidence and severity
of powdery mildew varied between 30%-90% and 20%-40%, respectively.
Auth.
10.C9.26. Screening
sources of resistance to barley powdery mildew. /Ts.
Tsetskladze, G. Mepharishvili, M.Gabaidze/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30. – pp. 116-119. –
geo.; abs.: geo., eng., rus.
Evaluation
of local and introduced breeding material of barley was conducted against the
background of artificial infection with powdery mildew under field conditions
in 2009-2011. As a result of field tests, the sources of resistance to Blumeria (Erisiphe) graminis f.sp. hordei were
revealed, which can be used in breeding programs to improve existing varieties.
Auth.
10.C9.27. Genetic structure of
virulence of wheat stem rust. /L. Mgeladze, Z.
Sikharulidze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 120-122. – geo.; abs.: geo.,
eng., rus.
The virulence of 133 single aecial and 372 uredial isolates was studied on
an international set of differential hosts including the host resistance genes:
Sr11, Sr12, Sr13, Sr14, Sr22, Sr24,
Sr25, Sr26, Sr27, Sr31, Sr32, Sr33, Sr35 were resistant to all of the isolates. Isolates
virulent to genes Sr6, Sr7, Sr7a, Sr8, Sr8a, Sr8b, Sr9b, Sr21, Sr23, Sr29 and
Sr36 were rare (0.5-8.8%). High percentage
(50.3-97.8%) of isolates virulent to Sr1, Sr9g, and Sr15 was recorded.
Virulence to lines Sr11,
12,13, 22, 24, 25, 26, 27, 31, 32, 33, 35,37 was not found in the population.
81 pathotypes were described in the stem rust population.
Auth.
10.C9.28. Virulence structure of wheat
powdery mildew in Georgia in 2009-2010. /M. Gabaidze, Z. Sikharulidze, Ts.
Tsetskladze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 123-126. – geo.; abs.: geo.,
eng., rus.
The
causal agent of wheat powdery mildew occurs annually throughout the wheat
growing regions of Georgia. The results of virulence surveys of Blumeria
(Erysiphe) graminis f.sp.tr in 2009-2010 showed that in the Georgian population
of wheat powdery mildew is highly virulent and consists of eight virulence
genes (91.3-100%). Twenty pathotypes were identified in the population.
The frequency of prevalent pathotype was 78.63%.
Auth.
10.C9.29. Spread
of wheat powdery mildew in Georgia. /M. Gabaidze, L.
Beradze, Ts. Tsetskladze/. Bulletin of the Academy of Agricultural Sciences of
Georgia. – 2012. – #30. – pp. 127-129. – geo.; abs.: geo., eng., rus.
The results of surveys
of wheat fields in different regions showed that optimal conditions for powdery
mildew spread exist in Georgia. Incidence of powdery mildew varied between 5-80%, depending on a region.
Auth.
10.C9.30. Crossing of
Georgian soft wheat varieties with endemic and other varieties; vital capacity
and inheritance of characters of the first generation hybrids. /M.
Naskidashvili, P. Naskidashvili, N. Merabishvili, I. Naskidashvili, T.
Loladze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 130-135. –
geo.; abs.: geo., eng., rus.
The work demonstrates
the crossing ability of Georgian soft wheat indigenous populations and breeding
varieties with tetraploid and hexaploid varieties of Georgian wheat, the
capacity of growing, winter resistance and of preserving the first generation
plants, also the inheritance peculiarities of features and properties
characteristic of the initial forms.
Auth.
10.C9.31. Peculiarities of inheritance
of the features and characteristics in the second generation hybrids received
by crossing the Georgian soft wheat varities with indigenous and other
varieties. /P.
Naskidashvili, M. Naskidashvili, I. Naskidashvili, T. Loladze, K.
Mchedlishvili/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 136-141. – geo.; abs.: geo.,
eng., rus.
The
work shows that in the second generation plants of hybrid plants produced by
crossing Georgian sort wheat varieties with endemic and other varieties being free
from lethal genes the inheritance of the morphologic-dominant features of the
initial forms is monogenic and the produced splittings match the theoretically
expected ratio: 3 (dominant) to 1 (recessive). Other inheritance-related
features and peculiarities of Georgian soft wheat crossing are also discussed.
Auth.
10.C9.32.
The process of forming in the second and other generations’ hybrids – crosses
of Georgian soft wheat and hard wheat varieties and selection of interesting
forms. /P. Naskidashvili, M. Naskidashvili,
T. Loladze, I. Naskidashvili, K. Mchedlishvili/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30. – pp. 142-149. – geo.; abs.: geo.,
eng., rus.
A
wide process of forming taking place in the combinations of crosses of Georgian
soft wheat and hard wheat varieties, as well as production of interesting new
forms are discussed.
Auth.
10.C9.33. Principles
of management of the forming of cereals productivity conditioning elements. /P. Naskidashvili,
M. Naskidashvili, N. Merabishvili, I. Naskidashvili, T. Loladze/. Bulletin of
the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 150-155. –
geo.; abs.: geo., eng., rus.
The work demonstrates the possibility of achieving high
yield of cereals by regulating the main components conditioning productivity of
the crops, also the scales of classification of cereals development phases
worked out by different researchers from different countries of the world.
Auth.
10.C9.34. The results
of genetic investigation of nucellar seedlings of some citrus plants during
distant hybridization. /N. Kipiani/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30. – pp. 156-158. –
geo.; abs.: geo., eng., rus.
The
paper discusses the results of a genetic investigation of sexual nucellar
seedlings obtained through the cross-breeding of the clone of large-leafed
mandarin Unshiu with the clone of distant ancestors of new-Georgian lemon (P. trifoliate and C. ichangensis).
Auth.
10.C9.35. New
Georgian maize interline hybrids. /O. Liparteliani, T.
Tavadze, F. Begoidze,
N.
Zhvania, B. Liparteliani/. Bulletin of the Academy of Agricultural Sciences
of Georgia. – 2012. – #30. – pp. 159-162. –
geo.; abs.: geo., eng., rus.
The
article gives the economic, biological, physiological and biochemical data of
new Georgian maize hybrids Tsilkani 1
and Tsilkani 2 selected as a result
of long-term research and claiming patentability.
Auth.
10.C9.36. Genetics and selection of Georgian wheat. /P. Naskidashvili, M. Naskidashvili, T. Loladze, I. Naskidashvili, K.
Mchedlishvili/. Bulletin
of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 163-167. – geo.; abs.: geo., eng., rus.
The articles mentions a great diversity of natural wheat (Triticum) found in Georgia. Out of 24
cultivated wheat varieties, 14 have been found and recorded in Georgia, 5 (35%)
of which are endemic. many new varieties and forms have been selected based on
the Georgian endemic wheat varieties. In addition, Georgia is considered to be
a homeland of immune and high quality wheat varieties, as well as a country
having discovered the hybrid necrosis genes. The great role of the endemic
varieties of Georgian wheat in the evolution and world breeding of the genus Triticum L. is demonstrated.
Auth.
10.C9.37. The
impact of anthropogenic factors on the composition of macro and micro
aggregates in trenching layers of vineyard soils. /J.
Oniani/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 168-172. – geo.; abs.: geo., eng., rus.
The impact of
anthropogenic factors on the structure strength (water resistance) of trenching
layers of vineyard soils is presented.
Auth.
10.C9.38. The impact of anthropogenic
factors on water properties of subtropical podsolic soils. /J. Oninani/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 173-176. – geo.; abs.: geo.,
eng., rus.
The changes in water
properties of subtropical podsolic virgin soils under tea plantations and
vineyards as a result of 20-27-year use are given.
Auth.
10.C9.39. Features of Cambisols
prevalent in East Georgia. /T. Urushadze, T. Kvrivishvili, E. Sanadze, R. Kakhadze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 177-182. – geo.; abs.: geo.,
eng., rus.
Features of Cambisols
prevalent in East Georgia have been studied. To the Cambisol soil group belong mountain-meadow
soils of a subalpine zone and grey cinnamonic soils of dry subtropical steppes.
The basic diagnostic feature of Cambisols is presence of soil weathering –
cambium horizon. In subalpine layers a Mollic horizon humic diagnostic criteria
are identified. In Cambisols of dry subtropical steppes, chromic and calcaric
diagnostic determinants are observed.
Auth.
10.C9.40. On soil features of arid
subtropical zone (by the example of East Georgia). /T. Urushadze, L.
Machavariani, E. Sanadze, T. Kvrivishvili/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30.
– pp. 183-188. – geo.; abs.: geo., eng., rus.
The conformity of
grey-cinnamonic soils widespread in the zone of subtropical steppe of East
Georgia to the group of chestnut soils of the World Reference Base of Soil
Resources is established. Systematization of the studied soils has been carried
out on a basis of macro- and micro-morphological features and of the analytical
data of the diagnostic horizons. According to the World Reference Base of Soil
Resources, grey- cinnamonic soils are classified as chestnut-calcaric chernozem
soils.
Auth.
10.C9.41. Land erosion dynamics during
a year.
/G. Gogichaishvili, O. Ghorjomeladze, N. Turmanidze/. Bulletin of the Academy
of Agricultural Sciences of Georgia. – 2012. – #30.
– pp. 189-199. – geo.; abs.: geo., eng., rus.
The results of land
erosion in different agricultural regions of Georgia are discussed. Changes in
the land erosion, its sustainability and definite predictions are given
according to seasons.
Auth.
10.C9.42. On land erosion rates. /O. Ghorjomeladze, N.
Turmanidze, G. Gogichaishvili/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30.
– pp. 200-207. – geo.; abs.: geo., eng., rus.
The work analyzes
soil losses as a result of erosion of different soil types sawn to different
crops according to continents and countries. The mean values of river solid
drifts (floating solids), the ways of land reclamation and relevant views of
different scientists are considered.
Auth.
10.C9.43. Some
problems of soil erosion in Adjara. /O. Ghorjomeladze, N. Turmanidze/. Bulletin
of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 208-213. – rus.; abs.: geo.,
eng., rus.
The work analyzes some
problems of soil erosion under conditions of Adjarian highlands. The factors
contributing to water erosion and its damaging mechanisms are considered.
Auth.
10.C9.44. Soil erosion danger
prediction on slopes in Adjaria. /O.
Ghorjomeladze, N. Turmanidze, G.
Gogichaishvili/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 214-218. – rus.; abs.: geo.,
eng., rus.
The work analyzes
such issues as soil erosion danger prediction, study and calculation of land
erosion mechanism, the impact on land erosion of such factors as relief, plant
cover, rain, snow melting, and other parameters, as well as the role of land
conservation measures.
Auth.
10.C9.45. Eco-chemical examination in
dynamics of nitrate nitrogen in basic vegetable crops cultivated in Georgia. /G. Danelia, A.
Tkhelidze, T. Palavandishvili, N. Barateli/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30.
– pp. 219-224. – geo.; abs.: geo., eng., rus.
As a result of an
eco-chemical examination, the content of nitrate nitrogen in basic vegetables
was studied in dynamics. As a result of the study, it was found that the fixed
content of nitrate nitrogen essentially exceeds the maximum permissible
concentration in spring and summer periods. This is caused by excessive
application of nitrogen and organic fertilizers and requires the taking of
urgent preventive measures for purposes of food safety.
Auth.
10.C9.46. Vegetable red color and its
nutritive value. /L.
Kutateladze, M. Demeniuk, L. Ejibia/. Bulletin of the Academy of Agricultural
Sciences of Georgia. – 2012. – #30. – pp. 225-227. – geo.; abs.: geo., eng., rus.
The
work considers the role of food colors in giving a product a consumer appeal.
The artificial coloring of food products and its influence on the health of
consumers are discussed. The article ends with a recommendation on the use of
natural vegetable colors in food production for the purpose.
Auth.
10.C9.47. Application
of artificial sweeteners and their importance. /L. Kutateladze,
G. Kutateladze, L.
Ejibia/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 228-230. – geo.; abs.: geo., eng., rus.
The
article deals with the problem of substituting sugar with sweeteners in the
manufacture of soft drinks and other food products. The most popular sugar substitutes are
enumerated, such as: Saccharin, Sorbitol, Cyclomate, Aspartame (NutraSweet),
etc.
Auth.
10.C9.48. Urgent
problems of Georgian agriculture restoration and development. /G.
Agladze, I. Sarjveladze/. Bulletin of the Academy of Agricultural Sciences of
Georgia. – 2012. – #30. – pp. 231-234. –
geo.; abs.: geo., eng., rus.
The
article deals with the productive capacity of some key sectors of Georgian
agriculture in the last decade, the ongoing changes, the current state of
affairs and the prospective activities aimed at meeting the country’s
population demands for staple foods.
Auth.
10.C9.49. Meat productivity of Holstein cow breed. /J. Javarashvili/. Bulletin of the Academy
of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 235-237. –
rus.; abs.: geo., eng., rus.
The article outlines an
increased interest in the raising of Holstein cows on the part of local
farmers due to high meat and milk productivity of this breed. The results of a
study carried out for the purpose of identifying the merits and demerits of
growing this breed under conditions of West Georgia are considered.
Auth.
10.C9.50. Results of bacterioscopic
monitoring of a dairy farm. /N. Peradze/. Bulletin
of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 238-240. – geo.; abs.: geo.,
eng., rus.
The article considers
the bacterioscopic monitoring of microbial contamination in the dairy farm
“Margebeli”. The farm was set up in 2008, where calves’ morbidity and mortality
due to the disease with gastrointestinal disorders emerged a few months later.
Bacteriological investigations revealed the prevalent presence of
escherichiosis. At the same time, the pathogenic forms of st. aureus and e.coli,
which are also dangerous to humans, were detected in the milk. The results of
microbial contamination study of 340 samples taken from various objects are
discussed and presented.
Auth.
10.C9.51. Serological test for the
express diagnosis of brucellosis. /E. Mamisashvili,
T. Onashvili, M. Natidze/. Bulletin of the Academy
of Agricultural Sciences of Georgia. – 2012. – #30.
– pp. 241-244. – geo.; abs.: geo., eng., rus.
Rapid agglutination
test is a fast and specific method to detect brucellosis in animals. A specific
diagnosticum is usually used as test antigen. Rapid agglutination test
accelerates the detection of specific antibodies in the serum of infected
cattle, sheep, goats and pigs. The above-mentioned test detects the infected
livestock (cattle, sheep, and goats) in 5-6 minutes. High sensitivity and
specificity of the test was also confirmed by the Rose Bengal test (RBT) and
cELISA.
Auth.
10.C9.52. Antibiotic
sensitivity of some bacterial pathogens isolated from hens. /Ts. Napetvaridze, M.
Bokuchava, N. Papiashvili/. Bulletin of the Academy of Agricultural Sciences of
Georgia. – 2012. – #30. – pp. 245-247. – geo.; abs.: geo.,
eng., rus.
The
results of a study concerning resistance of some pathogens to antibiotics are
presented. For instance, most of St.
aureus and St. epidermidis
strains were found to be resistant to Amoxycillin and Tromexin, of St. epidermidis-3 to Levomicetin and
Sultrim, while the strains of St. aureus
to Vilfloks and Levomicetin. Isolators of staphylococcus are highly sensitive
to Enroflox + DAS and Pollodoxin + DAS. The strains of Pr. vulgaris are resistant to against Ampicid, Amoxicillin, Sultrim
and Tromexin. Pollodoxin + DAS is effective against the above-mentioned
strains.
Auth.
10.C9.53. Efficiency of giving tranquilizers in preslaughter period and impact of stress on meat quality of broilers. /D. Kinkladze/. Bulletin of the Academy of Agricultural
Sciences of Georgia. –
2012. – #30. – pp. 248-250. –
geo.; abs.: geo., eng., rus.
The article
discusses how the giving of a
tranquillizer (herbal preparation
“DAS") in the
preslaughter period relieves the stress that
affects
the broiler meat quality and
composition.
Auth.
10.C9.54. Study of
antibiotic stimulatory action of the preparation DAS. /Z. Tigilauri/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30. – pp. 251-254. –
geo.; abs.: geo., eng., rus.
The study revealed high antibacterial action of the combinations DAS +
Enroflox; DAS+ Polodoxin; DAS + ACC-555 against gram-positive cocci (St. aureus, Str. pyogene, Bac. subtilis, St.
epidermidis), sporous forms of anthrax vaccinal strains (55; CTI, Ikhtiman,
34 F2), which was expressed in size of their growth inhibition zone (28-45) and
degree of lysis (4+). The above-mentioned antibacterial activity of the
preparation is much lower toward gram-negative bacteria (E. coli, Pr. vulgaris, S. pullorum-gallinorium, S. enterotidis)
than to gram-positive ones, but it is enough high (3+, 4+) to be used for
practical purposes.
Auth.
10.C9.55. Morphogical changes in
peripheral blood of during salmonellosis of piglets, on the fifth, seventh day from infection. /Z.
Chekurishvili/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 255-258. – geo.; abs.: geo., eng., rus.
The
article deals with a study of the clinical and morphological indices in the
peripheral blood during salmonellosis - the widespread diseases of piglets:
decrease in of hemoglobin and the number of erythrocytes, leukogram, and erythrocyte
sedimentation rate (ESR), analysis of these changes and their application for
diagnostic purposes.
Auth.
10.C9.56. Anatomical features of the Caucasian shepherd
dog’s femoral nerve. /E.
Buzariashvili/. Bulletin of the Academy of Agricultural Sciences
of Georgia. – 2012. – #30. – pp. 259-263. –
geo.; abs.: geo., eng., rus.
The
external architectonics of the lumbar plexus, the level of branching on the
main branches of nerves, deriving from the plexus and patterns of nerve entry
in the muscles and their distribution are studied by the known method of the
Academician V. Vorobiov on the material of 10 Caucasian Shepherd corpses. It is
established that the plexus is displaced caudally; the femoral nerve emerges
from the caudal portion of the plexus, and most often (60%) the ventral
branches of the lumbar (IV, V, VI, VII) segmental nerves participate in the
creation of the femoral nerve.
Auth.
10.C9.57. Study of
virulent strains of Bac. anthracis. /T.
Onashvili/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 264-267. –
geo.; abs.: geo., eng., rus.
The
isolated strains Bac. anthracis are
identified by the cotton limp-like growth in the broth at the bottom of the
tube; on the agar, they create R and RO type colonies in the shape of lion’s
mane, which dilute gelatin, peptonize milk and create a so-called “pearl
necklace”; they are penicillin- and phage-sensitive. All strains are virulent
for white mice.
Auth.
10.C9.58. Study
of antibiotic
sensitivity
of Bac.
anthracis strains. /T. Onashvili/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 268-270. –
geo.; abs.: geo., eng., rus.
The antibiotic sensitivity of Bac.
Anthracis strains is studied. The tests identified different sensitivity
of 14 virulent strains of Bac. anthracis to 21 antibiotics. All the strains
were resistent to Polimyxin and Bactrim Forte and highly sensitive to
Doxaciclin, Tylosin, Enroflox, Cipro and Tetraciclin. The action of other
antibiotics were low.
Auth.
10.C9.59. Results of
the use of probiotic GalliPro in poultry breeding. /Ts.
Napetvaridze/. Bulletin of the Academy of Agricultural
Sciences of Georgia. – 2012. – #30. – pp. 271-274. – geo.; abs.: geo., eng., rus.
The biological additive GalliPro considerably increases
the live weight and maintenance of chickens, regulates the content of
intestinal-obligatory microflora and inhibits the growth and development of
pathogenic microorganisms (hemolytic E. coli, Proteus, etc.). The preparation
increases the content of total protein, calcium and phosphorus in poultry
blood, activates the effect of non-specific factors of immunity and
correspondingly increases the resistance.
Auth.
10.C9.60. Antibiotic
sensitivity of some microbes to DAS and its combinations with antibiotics. /D.
Bostashvili/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 275-278. – geo.; abs.: geo., eng., rus.
The
article considers the impact on the antimicrobial sensitivity of locally made
peptide drug DAS and its combinations with individual antimicrobial drugs
(antibiotics, sulfanilamides). The conducted tests have shown high efficiency
of the above-mentioned preparations and that their combination with DAS
enhances the synergistic action. The combination of DAS with antibiotics from
the group of fluoroquinolones and doxycycline is especially effective.
Auth.
10.C9.61. Methods
of treatment of cows diseased with endometritis. /G.
Butskhrikidze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 279-281. – geo.; abs.: geo., eng., rus.
The
improvement of animal reproduction includes complex and labour-consuming
processes in animal husbandry. The biological abilities of animals enable to
get one calf or more from one cow at every farm in a year. It must be noted
that nowadays there is a high percentage of sterility and dryness of cows at
many farms which is economically damaging to this branch of agriculture and
includes expenses on keeping sterile cows. The sterility of cows can result
from many reasons, such as inappropriate keeping, inadequate feeding, diseases
of genital, and high frequency (23.41%) of post-delivery endometritis. The
article proposes some effective methods of endometritis treatment.
Auth.
10.C9.62. The
impact of a system of management of broilers on meat productivity. /D.
Kinkladze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 282-284. – geo.; abs.: geo., eng., rus.
The
article considers the impact of cage rearing and floor management of broilers
on the growth, development, vitality and meat quality. The research was
conducted in the poultry farm “Mukhrani” in 2010-2011. As the experiment the
broilers of cross “Ross-308”
were used. The live weight of broilers made up 1709 g in cage batteries at 5
weeks of age or by 5% more than on deep litter. The study of vitality and meat
quality has shown that in the case of deep litter management of broilers the
quality of meat improved and vitality increased by 3.2% against cage rearing.
Auth.
10.C9.63. The influence of
stocking densiti on broiler welfare and meat quality. /D. Kinkladze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 15-17. – geo.; abs.: geo., eng., rus.
The influence of the
stocking density on broiler meat productivity and quality is discussed. The
broiler growth dynamics, vitality and meet qualitative indicators have been
studied.
Auth.
10.C9.64. The effect of mastitis on
chemical and technological properties of
milk. /L.
Tortladze, T. Gabisonia, I.
Antia/. Bulletin of the Academy of Agricultural Sciences of
Georgia. – 2012. – #30. – pp. 288-290. – rus.; abs.: geo., eng., rus.
Mastitis in Holstein breed cows has been tested
by the so-called “California Test Mastitis” method. 15% out of the examined
cows were diseased with mastitis, 6.8% in the clinical form. The minimum
percentage of the disease is revealed in cows with bath-shaped udder.
Technological properties of milk have a great importance when making cheese.
The content of fat, lactose, acidity, dry fatless milk residue was decreased in
the diseased cows causing a decrease in technological properties.
Auth.
10.C9.65. Prevention
and treatment of
toxic dyspepsia of newborn calves. /A. Abdinova/. Bulletin
of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 291-293. – rus.; abs.: geo., eng., rus.
For
treatment of dyspepsia oxitetracyclin at a dose 1ml per 10 kg live weight in a
combination with lactic product Ayran and an infusion of chamomile was used
with the concurrent intravenous injection of the solution Ringera–Lokka. For
preventing toxic dyspepsia the conduct of sanitary preventive measures during
management of in-calf cows and newborn claves is a must.
Auth.
10.C9.66. Some
peculiarities of the epizootic process by sarcocystosis of domestic
animals. /Sh. Potskhveria, D. Khelaia, M. Turmanidze/. Bulletin of
the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 294-297. – geo.; abs.: geo., eng., rus.
Sarcocystosis is a widespread
disease in western Georgia. 22.2% of the investigated cattle carcasses, 24.4% of
swine and 69.8% of sheep have been invaded by microsarcocysts. The weak form of
intensity of infestation prevails, which has been revealed in 73.9, 71.0 and
68.2% of the investigated cattle, swine and sheep carcasses respectively. The
carcasses of cattle of average fatness (93.7%), swine (75.0%) and swine of meat
type (100%) also have been invaded mainly by microsarcocysts. The neck and
abdominal muscles (41.2 and 43.8% correspondingly) of cattle, abdominal muscles
(71.7%) of sheep and neck muscles (63.7%) of swine are often invaded by microsarcocysts.
Under conditions of Georgia, the shepherd and hunting dogs are the determining
factor of the invasion spread in the epizootic process by sarcocystosis and
the indices of extensiveness of the infestation of them make 73.1%.
Auth.
10.C9.67. The
influence of Sel-plex on the duration of molt in egg-laying hens. /M.
Kvitsiani/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 298-301. – geo.; abs.: geo., eng., rus.
It has been
determined that during the molt period and during the use of Sel-plex, the
change of flight feathers as well as contour feathers was accelerated. In fowls
of the experimented group, the change of flight feathers finished in 85 days,
in the control group - in 92 days. Analogically, the fowls of the test group
finished the change of contour feathers 5-6 days before.
Auth.
10.C9.68. The effect of preparation M on the blood leucocytes status of cattle during treatment against cattle tick. /M.
Dumbadze/. Bulletin
of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 302-305. – geo.; abs.: geo.,
eng., rus.
The effect of the preparation
M on the blood leucocytes
status of cattle during treatment against cattle tick Ixodes is considered.
Auth.
10.C9.69. Spread of cattle brucellosis
in Georgia in 2000-2010. /G. Maghlakelidze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 306-312. – geo.; abs.: geo.,
eng., rus.
The article deals
with the spread of cattle brucellosis - one of the most severe chronic zoonotic
diseases – in Georgia, specifying its adverse effects on the animal health and
possible dangers for humans.
Auth.
10.C9.70. The result of treatment and
prevention of bowel infections in swine and poultry. /D. Shalamberidze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 313-315. – geo.; abs.: geo.,
eng., rus.
Bowel
infections caused by bacteria are widely spread in swine and poultry farms.
Antibiotics are often used against bacterial diseases. Among them, the most
efficient is Oxytetracycline (99%) that can be mixed with other drugs. The
preparation is produced by ‘Davati’ plant. As a result of carried out
experiments and laboratory tests, the preparation has been found rather
efficient against escherichiosis
in
swine and poultry and less effective in treating swine salmonellosis.
Auth.
10.C9.71. Medical and
prophylactic efficacy of Enrofloxacin against bacterial infections. /D.
Shalamberidze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 316-319. –
geo.; abs.: geo., eng., rus.
The
medical and preventive properties of an antibacterial preparation Entrofloxacin
produced by ‘Davlati’ company in treating and preventing poultry against salmonellosis,
escherichiosis, staphylococci and streptococci are considered.
Auth.
10.C9.72. The
efficacy of Tylosin Tartrate against swine salmonellosis. /D.
Shalamberidze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 319-321. – geo.; abs.: geo., eng., rus.
The medical efficacy
of an antibacterial preparation Tylosin Tartrate (powder) has been investigated
under laboratory conditions on poultry and swine. The preparation has been
found effective in treating swine salmonellosis.
Auth.
10.C9.73. Growth indicators of young
Georgian mountain cattle in smallholder farms. /L. Tabatadze, G.
Gogoli, R. Barkalaia, K. Natsvaladze/. Bulletin of the Academy of Agricultural
Sciences of Georgia. – 2012. – #30. – pp. 322-325. – geo.; abs.: geo., eng., rus.
The researches have
shown that Georgian mountain cattle calves growing under improved keeping
conditions have revealed a relatively high potential of growth and development.
It should be noted that by weight gain per kg body weight at birth Georgian
mountain cattle breed calves exceed this measure in cultural breeds. At the
same time, it should be mentioned that in the temporary Technical Regulations
of Appraisal of Dairy and Dairy-Beef Cattle Breed the live weight indicators of
Georgian mountain cattle calves do not comply with the actual figures and
should be revised.
Auth.
10.C9.74. The result of research of
green algae of agrocenoses in the subtropical zone of Adjara. /G. Beridze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 330-333. – geo.; abs.: geo.,
eng., rus.
More than 100 species
of Chlorophyta algae of agrocenoses
are identified in the subtropical zone of Adjara. Among them, the dominant
genera are the following: Ankistrodesmus,
Chlorella, Closterium, Clamydomonas, Cosmarium, Cosmoastrum, Draparnaldia,
Hormidium, Microspora, Pediastrum, Penium, Oocystis, Scenedesmus, Spirogyra,
Tetraedron, Ulothix, Euastum.
Auth.
10.C9.75. The result of research of aerophilic algae of agrocenoses
in subtropical Adjara. /O. Shainidze, G. Beridze/. Bulletin of the
Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 334-336. – geo.; abs.: geo.,
eng., rus.
The
algoflora of subtropical plants and
tea has been investigated. Over 20 species
have been identified, most of them being incorporated in the division of green
algae.
Auth.
10.C9.76. The results of research of algoflora of water plants in
reservoirs of Adjara. /G. Beridze/. Bulletin of the Academy of Agricultural
Sciences of Georgia. – 2012. – #30. – pp. 337-340. – geo.; abs.: geo., eng., rus.
The composition of algoflora species spreading
over water plants of small reservoirs (canal,
pool, holes) has been studied. As a result of the study, 107 species and subspecies of
algoflora spreading over the water plants have been identified. Their
ecological analysis has been conducted.
Auth.
10.C9.77. The
morphodynamics of modern lithodynamic system of the River Chorokhi. /S. Khorava, A. Kikava, G. Russo/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 341-346. – geo.; abs.: geo.,
eng., rus.
The effects of dams
built on the River Chorokhi in the territory of Turkey against the background
of Batumi sea front development and the renewal of shore protection on the
coastal area under the tested method morphodynamics of the modern lithodynamic
system of the River Chorokhi, immediately from the Batumi Cape to the Kalender
Cape are considered.
Auth.
10.C9.78. Fauna in the protected areas of Ajara (Mtirala-Kintrishi). /R. Davitadze/. Bulletin
of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 347-351. – geo.; abs.: geo.,
eng., rus.
The fauna of the
protected areas in Ajara - Mtirala National Park and Kintrishi protected areas
are discussed. The local animals entered in the Red Book are listed. The
problems of conservation of the fauna in the protected areas and its importance
for attracting tourists are considered.
Auth.
10.C9.79. Diseases of deciduous plants
in the protected areas of Ajara. /R. Davitadze/. Bulletin of the Academy of
Agricultural Sciences of Georgia. – 2012. – #30.
– pp. 352-355. – geo.; abs.: geo., eng., rus.
The article deals
with such diseases of deciduous trees such as Cryphonectria parasitica, Cameraria ohridella deschka and Tischeria complanella
ril.
Their pathology, symptoms of disease, biological symptoms, distribution area
and the measures taken against them in the Ajara protected areas (Mtirala National
Park and Kintrishi protected area) are discussed.
Auth.
10.C9.80. Agroproducts import and
export trends in Georgia. /Sh. Chalaganidze, T. Kunchulia/. Bulletin of the Academy
of Agricultural Sciences of Georgia. – 2012. – #30.
– pp. 356-362. – geo.;
abs.: geo., eng., rus.
The article deals
with agroproducts export-import trends in Georgia, the quantitative and
structural changes in world exports, and the results of the work done for promoting
new commodity groups and widening the export geography. The causes of a
decrease in local production are explained and the expediency of production of
importable goods is justified. For the first time, the 10-year import and
export indicators are systematized according to the harmonized commodity system
groups and published, which is to be of great assistance to researchers and
experts engaged in this sphere, as well as the interested general public.
Auth.
10.C9.81. Cost-effectiveness of the application
of phosphorus fertilizers in tea industry. /N. Kutaladze, T. Gogolishvili/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 367-370. – geo.; abs.: geo.,
eng., rus.
P 180 kg/hectare is
the most effective among the options of annual application of phosphorus
fertilizers. In the given option an increase in green tea leaf compared to the
background made up 2012 kg/ha; the calculated profit – GEL 1411/ha;
profitability – 176%; profit from each spent 1 GEL – 2,8 GEL, and the cost of
one kg tea leaf – GEL 0,4.
Auth.
10.C9.82. Priorities of
agroengineering research development in Georgia. /Sh. Chalaganidze, R.
Makharoblidze/. Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 374-381. – geo.; abs.: geo.,
eng., rus.
The main outcomes of
agroengineering research in Georgia considering the world tendencies and local
features of agriculture production are analyzed and the main directions of
basic and complex applied research in the comprehensive mechanization are
outlined. The engineering and mathematical branches, which are most promising
for raising the level of agroengineering research are focused and the
activities aimed at stabilizing the agricultural sector and its innovative
development are set.
Auth.
10.C9.83. The resource and productive potential of food safety, its
regulation and management. /O.
Keshelashvili/. Agrarian-economic Science and Technologies. 2012. – #3. – pp.
6-16. – geo.; abs.: eng.
The goal of research is
to define production-resource and productive potential of food safety and to
work out an economic mechanism of regulation and management of its utilization
as a system of branch-modified economic-organizational activities. After this a
stable development of the agrarian sector, economic growth and improvement of
social conditions of population are to be reached. A systemic and purposeful
approach will be used while working on the project; interrelation of tasks and
mutual stipulation of results of their solving will be achieved with a focus on
the final result – the economic growth of agriculture and provision of food
safety.
Auth.
10.C9.84. Kolkhetian and Atlantic
sturgeon popularization and breeding strategy (economic and ecological
perspectives).
/O. Keshelashvili, N. Mikhanashvili/. Agrarian-economic
Science and Technologies. 2012. – #2. –
pp. 17-26. – geo.; abs.: eng.
In accordance with the Georgia’s economic strategy, the country’s zonal and micro-zonal natural-economic conditions have to be exploited with the highest effectiveness. In this strategy, one of the directions is Kolkhetian and Atlantic sturgeon breeding and government’s support in this matter. The number of sturgeons has so diminished that the fish is to be included in the Red Book. The article’s subjects of research and analysis include: the main characteristics of Kolkhetian and Atlantic sturgeon inhabiting Georgian waters; problematic ecological conditions of sturgeon breeding in Georgia; within the scope of ecological projects, the main efforts of local (governmental and nongovernmental) organizations and support from foreign investors; and the main factors interfering with the problem solution.
Auth.
10.C9.85. Identification and introduction of new varieties of aromatic plants. /N. Baghaturia, E. Uturashvili, M. Demeniuk/. Agrarian-economic
Science and Technologies. 2012. – #2. –
pp. 60-64. – geo.; abs.: eng.
Identification and introduction of new varieties of aromatic plants helps
expand the range of locally grown aromatic plants. Aromatic plants and their
essential oils are widely used in food industry. The article considers the
necessity of introduction in Georgia of a highly productive aromatic plant –
lemon wormwood (Artemisia balchanorum
Krasch), which essential oil is distinguished by high content of citral
and linalool and has a specific aroma of lemon, also the outcomes of its
planting in tropical (Lagodekhi) and subtropical (Sukhumi) regions of Georgia.
Auth.
10.C9.86. The percentage change of the grape sugar content upon variations in the
quantity of grapevine buds. /T. Khokhobashvili/. Metsniereba da teknologiebi. – 2011. – #4-6. – pp. 119-120. – geo.; abs.:
eng., rus.
The
percentage changes in the grape sugar content are considered upon variations in
the quantity of vine buds and use of the rational methods of pruning are
considered. Two grapevine varieties Rkatsiteli
and Utsiptso were studied for the
purpose. The observations were carried out in five replications, each including
six samples. Thee three-year experiments have found the data on grape sugar
content most interesting in replications III and IV.
Auth.
10.C9.87. Crossability
of endemic species and aboriginal varieties of Georgian wheat and traits in F1. /P. Naskidashvili, I. Naskidashvili, M. Naskidashvili, T. Loladze, K. Mchedlishvili,
N. Gakharia/. Bulletin of Georgian National Academy of Sciences. – 2012. –
vol. 6. – #1. – pp. 137-142. – eng.; abs.: geo., eng.
The research shows that Georgia is a primary centre of the origin and
diversity of cultivated wheat, distinguished from other countries by a high
level of endemism. It is proved that Georgian endemic species of wheat have
played an important role in the evolution of the genus Triticum and process of
wheat selection on a global scale. New species, genera, cultivars and varieties
of wheat have been obtained on the basis of wheat species endemic to Georgia.
Their genotype bears genes which allow to obtain wheat species of a new type
with high immunity and quality features. Issues of crossability of endemic
species of Georgian wheat with other species as well as with aboriginal and
selection varieties of soft wheat, germination capacity of obtained hybrid
grains and viability of plants of the first generation are discussed in the
present paper. Peculiarities of inheritance of economically important
morphological traits in the first generation of plants are shown.
Auth.
10.C9.88. Typology of
East Georgian open juniper woodlands. /P. Togonidze/.
Bulletin
of Georgian National Academy of Sciences. – 2011. – vol. 5. – #3. – pp.
103-106. – eng.; abs.: geo., eng.
This
paper provides new data on East Georgian open juniper woodland types and
associations. The typology of open juniper woodlands has been studied on 8
sampling plots. Phytocenosis composition, average height and diameter, age,
growth class, natural regeneration rate, status of forest understorey and
herbaceous cover were determined.
Auth.
10.C9.89. A new
approach to the methodology of economic evaluation for the land resources of
Georgia. /M. Vartanov/ Collected
Papers of Institute of Water Management. – 2011. –
#3. – pp. 53-56. – rus.; abs.: geo., eng., rus.
The
dynamics in the use of agricultural lands, including irrigation are discussed
and a new approach to the evaluation of different lands in Georgia is assessed.
A conclusion on highly effective use of agricultural lands, their environmental
safety and sustainable functioning of all the national economy sectors is made.
Auth.
10.C9.90. Prospects for the agricultural sector development in
Georgia. /D. Gubeladze/. Metsniereba da Tskhovreba. –
2012. – #1(5). – pp. 80-84. – geo.; abs.: geo., eng., rus.
Georgia has a
possibility to solve the problem of food security, greatly increase the production
of traditional export products, the food processing industry and rural
development and employment with the effective functioning of the reclamation
fund. Nowdays, the main task is to realize these possabilities practically.
Auth.
10.C9.91. Increase of efficiency of egg production in poultry breeding. /M. Khutsishvili, O. Maisuradze/. Metsniereba da Tskhovreba. 2012. – #1(5). – pp. 94-97. – rus.; abs.: geo., eng., rus.
The experiments carried
out at Savana poultry farm have shown that hens on the 10-12th day
of moult lost 20-23% of live weight. The weight of reproductive organs reduced
to a minimum (ovaries – 8.5%, oviduct – 15.6%) and from the 20th day
after moult it increased rapidly. The hens began to lay eggs after 23 days from
the beginning of moult and after 45 days the intensity of egg laying reached
50%.
Auth.
10.C9.92. Copper transformation from soil into the plant (experimental
investigation). /U. Zviadadze, M. Mardashova,
N. Gachechiladze/. Transactions
of the Technical University of Georgia. – 2012. – #1(483). – pp. 45-49. – geo.; abs.: geo., eng., rus.
A problem of
accumulation in agricultural products, particularly in verdure, of toxic metals
from polluted soils is discussed. According to a carried out experiment, plants
growing along motor have been found to have different degrees of assimilation
of heavy metals from such soils.
Auth.
10.C9.93. Problems of ecologization of agriculture in humid subtropical areas of
Georgia. /B. Godziashvili, M. Chebotareva/. Akhali Ekonomisti. – 2012. – #1. – pp. 37-39. – geo.; abs.: eng.
Recently, under the pretext of
ecologization an agriculture and obtaining high-quality production, some European
publications call for a complete ban of mineral fertilizers and their
substitution with organic ones. Even in Georgia, under conditions of humid
subtropics, where for almost 16-18 years minerals fertilizers have not been
applied, a transfer for a system of alternative farming is being considered,
which, in the authors view and given the complicated social conditions, is just
untimely. The application of a combination of the strict ecologically tested
rates of mineral fertilizers with organic matter and it residues together with
agricultural ores containing different biogenic elements can play a significant
role in the ecologization and sustainable development of agriculture in humid
subtropics of Georgia.
Auth.
10.C9.94. Cooperation – the effective mechanism of agriculture development. /P. Koghuashvili, D. Mamukelashvili/. Business-Engineering.
– 2012. – #4. – pp. 61-65. – geo.; abs.: eng.
The work concerns
voluntary cooperation of rural population, its integration with processing
industries (creation of a uniform system of production, processing and sale of
farm products) and on-site regulation of major socio-economic or technical
problems. Based on social solidarity, cooperative community members will be in
full ownership of the income from sales of the final product and themselves
decide on the earmarking of the respective funds for reproduction and/or
handling of common social problems. Implementation of the Community
Entrepreneurial Mobilization Program will bring forth a substantial growth of
incomes of the major portion of the country’s population and dynamic
improvement of its socio-economic situation.
Auth.
10.C9.95. Some problems facing the agrarian sector. /L.
Pitiurishvili, A. Grishikashvili/. Business-Engineering.
– 2012. – #4. – pp. 66-68. – geo.; abs.: eng.
Georgia is unable to meet local population's demands for
national food products. The food products imports exceed export by more than
three times. One of the main reasons of such a situation is small-contour land
parcels where the effective use of farm machinery is rather problematic. The
said problems can be settled by government interventions in the processes of
consolidation of small land plots, supply of farm machinery, conduct of
irrigation and reclamation works. The agricultural sector taxation system
should also be improved; otherwise, the consolidation of land alone will not
bring forth essential results.
Auth.
C10. Water
Industry. Melioration
10.C10.1. The results
of engineering-geological studies of the Ritseuli HPP diversion canal and
nearby structures. /T. Tevzadze, Sh. Birkadze, S. Kandelaki, D. Potskhveria, G. Omsarashvili,
L. Bilanishvili/. Metsniereba da Teknologiebi. – 2011. – #4-6. – pp. 61-69. –
geo.; abs.: eng., rus.
The article presents the results of
engineering-geological studies of area locating Ritseuli HPP headworks,
diversion canal, head bay, power conduit as well as the geodynamic processes
prediction and the structures’ diffusion conditions.
Auth.
10.C10.2. Supply
of drinking water to Kutaisi City and health-resort Tskaltubo using the River
Rachkha (preliminary research data). /J. Noselidze, O. Shautidze, Sh. Momtsemlidze/. Metsniereba da
Teknologiebi. – 2011. – #4-6. – pp.
70-72. – geo.; abs.: eng., rus.
River Rachkha originates at a height of 800 m
and flows into the right bank of the River Tskhenistskali. The height
difference from the river head to Kutaisi makes 440 m. The water’s chemical
composition completely meets the drinking water standards, with the exception
of manganese, the content of which exceeds the standard (12,2 mg/l versus
standard 5,0 mg/l). The water flow varies generally within 4,0–5,0 m3/sec.
The large height of fall from the head to Kutaisi may be used for the
generation of electricity in small HPPs through an environmentally friendly
“Zink” type turbine.
Auth.
10.C10.3. The
analysis of operation of bank-protecting structures on the River Chorokhi. /V. Mamasakhlisi, J. Noselidze, Sh. Momtsemlidze/. Metsniereba da
Teknologiebi. – 2011. – #4-6. – pp.
73-77. – geo.; abs.: eng., rus.
The results of operation of the
bank-protecting concrete structures (levees) on the river Chorokhi are given.
With the aim to avoid deformations of the bank-protecting structures recommendations
on design of each such structure are worked out.
Auth.
10.C10.4. Determination
of the Darcy coefficient at pressure flow of non-Newtonian fluid in the pipe. /O. Natishvili, V. Tevzadze/. Bulletin of the Georgian National Academy
of Sciences. – 2012. – vol. 6. – #1. –
pp. 121-124. – eng.; abs.: geo., eng.
The methodology of
hydraulic calculation of the pressure losses along the length at the motion of
non-Newtonian fluid with flow core in a round pipe is presented.
Auth.
10.C10.5.
Application of nonlinear wave dynamics to the
problems of statistical analysis of water supply curves. /A. Bagdoev, V. Tokmajian, M. Pogosjian/.
Collected Papers of Institute of Water Management. –
2011. – #3. – pp. 9-12. – rus.; abs.:
geo., eng., rus.
The application
of methods of nonlinear wave dynamics to investigate distribution probabilities
of water supply along empirical curves to the town of Goris, Armenia, for
2007-2009 and along the typical curve to Yerevan for 2008 is presented. A small
latent region characteristic of small variations of the curve parameters, which
is described by the known linear diffusion equation for the process
probabilities, is singled out and, according to the chosen system of kinetic
equations for two parameters, their solution represents a vibro-exponential
trend and after trigger transition to the regions of large variations of
parameters its solution is for probabilities is given in the form of a shock
wave. A simplified approach to determination of probabilities and nonlinear
coefficient for the mentioned regions of large variations of processes is
offered based on the equation of shock wave and on inclinations of the
empirical curves, which is close to the theoretical shock wave. A single
nonlinear coefficient for all the regions of essential variation of parameters
is defined, which justifies applicability of the chosen model of shock waves.
Auth.
10.C10.6.
Mathematical simulation of flood in case of a possible
failure of Lajanuri Dam. /G. Gavardashvili/. Collected
Papers of Institute of Water Management. – 2011. – #3. – pp. 13-19. – eng.; abs.: geo., eng.,
rus.
For the purpose of mathematical simulation of a flood
that might be caused in case the Lajanuri arched reinforced concrete dam fails
the algorithm of “Volna-2” software making it possible in such case to
calculate the wave velocity, the travelled distance and, most important, the
flooded area geometry (to the right and to the left of the river axis), taking
into account the time factor was reworked. Fortunately, according to the
simulation results, the population living within the nearby area will not be
endangered.
Auth.
10.C10.7. Hydrology
and hydrography of the River Khadis Khevi. /I. Zakaidze/. Collected Papers of Institute of Water
Management. – 2011. – #3. – pp. 57-61. –
geo.; abs.: geo., eng., rus.
The
article describes hydrology, hydrography and geography of the Khadis Khevi
River basin, also the right and left tributaries of the river which are
characterized by mudflow processes and need to be thoroughly studied. Also
considered are floods and high water of the river and their causing reasons. The
article presents the average annual, maximum and minimum discharges of the
river. The maximum discharges take place in summer, and the minimum - in
winter. Materials of visual observations to clarify some issues are used.
Auth.
10.C10.8. Analysis of precipitation
distribution in the river basins of
Naryn Region of Kyrgyzstan for the purpose of assessing water resources. /N. Ivanova, N. Ershova/. Collected Papers of Institute of Water Management. –
2011. – #3. – pp. 73-79. – rus.; abs.:
geo., eng., rus.
This paper describes
the physiographic characteristics and climate conditions in the Jergital and
On-Orcha river basins of the Naryn region of Kyrgyzstan. The plotting of maps
(scale 1:50000) for the distribution of precipitations in digital format is
considered. An analysis of precipitation change to assess the quantity of water
recourses in the mentioned river basins is carried out.
Auth.
10.C10.9. Analysis of potential evaporation
and deficit of water availability in the river basins of the Naryn Region of
Kyrgyzstan to assess water resources. /N. Ivanova, N.
Ershova/. Collected
Papers of Institute of Water Management. – 2011. – #3. – pp. 80-85. – rus.; abs.: geo., eng.,
rus.
The
article describes the computation and analysis of changes in potential
evaporation and water availability deficit in the Jergital and On-Archa river
basins of the Naryn region of Kyrgyzstan. The plotting of
distribution
maps for the potential evaporation and water availability deficit in digital
format (scale 1:50000) are considered.
Auth.
10.C10.10. Ecological
reliability evaluation of the sedimentation processes in mountain reservoirs of
Georgia. /I.
Iordanishvili, K. Iordanishvili, Z. Charbadze, L.
Javakhishvili/. Collected Papers of Institute of Water Management. – 2011.
– #3. – pp. 93-97. – geo.; abs.: geo.,
eng., rus.
The results of reservoir sedimentation of large
mountain reservoirs of Georgia (Tbilisi, Zhinvali, Khrami, Shaori, Algeti and
Sioni) are given. The critical stage of the Zhinvali reservoir sedimentation (Vfull = 520 Mm3, Wn = 63 Mm3)
caused by the lately observed frequent flooding is proved. To ensure safe
operation of large reservoirs, the appropriate measures significantly slowing
down the process of sedimentation are proposed.
Auth.
10.C10.11.
Calculation of minimum flow-rate for the unexplored mountain rivers of
Azerbaijan. /F. Imanov, A. Guliyeva/. Collected Papers of
Institute of Water Management. – 2011. –
#3. – pp. 86-92. – rus.; abs.: geo., eng., rus.
The paper is devoted to the development and
improvement of methods needed for the calculation of the minimum flow by the
example of the mountain rivers of Azerbaijan. It is shown that the simultaneous
consideration of the impact of the catchment area and its average height on the
mean value of minimum flow can improve the accuracy of calculations. It is
defined that the method of parameterization in addition to the conversion
coefficient method can be used to determine the minimum flow of unexplored
rivers.
Auth.
10.C10.12.
Methods
of probabilistic assessment of the expected threats from river floods. /D. Kereselidze, G. Dokhnadze, V.
Trapaidze, I. Zakaidze, H. Salukvadze/.
Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 120-123. – geo.; abs.: geo., eng.,
rus.
According to the
Intergovernmental Panel of Climate Change (IPCC), the current climate change
will increase the intensity and frequency of the most dangerous phenomena of
the elements as floods. It is known that the lands adjacent to rivers are of
great interest to different organizations because of different factors (relief,
fertile soil, proximity of water sources, relatively well developed
infrastructure, etc.). Therefore, development of the methods of probabilistic
assessment of expected threats providing an effective and exhaustive
description of different situations is of great importance.
Auth.
10.C10.13.
Reducing soil filtration using surface active substances (surfactants). /Kh.
Kiknadze, K. Dadiani, L. Maisaia, F. Lordkipanidze, M.Navrozashvili/. Collected
Papers of Institute of Water Management. – 2011. – #3. – pp. 124-127. – rus.; abs.: geo., eng.,
rus.
The paper describes the results of investigations
carried out to reduce the permeability of sandy, loamy and sandy loamy soils,
which were processed by the aqueous Caprolactam solution. The proposed method
is regarded to be rather promising.
Auth.
10.C10.14. Hydraulics
of furrow irrigation and computer simulation of a process using the programming
language C++. /R.
Kiladze/. Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 128-133. – geo.; abs.: geo., eng., rus.
A
computer simulation of furrow irrigation using the theoretical framework,
numerical methods and programming language C++ is carried out. The results are
given in the form of a table, wherein the input data determining the process
and the output data determining the quality of irrigation are differentiated.
The developed method makes it possible to select a set of inputs that yields
the best quality of irrigation.
Auth.
10.C10.15. Hydraulics
of strip irrigation and computer
simulation of a process using the programming language C++. /R. Kiladze/. Collected Papers of
Institute of Water Management. – 2011. –
#3. – pp. 134-138. – geo.; abs.: geo., eng., rus.
A
computer simulation of strip irrigation using the theoretical framework,
numerical methods and programming language C++ is carried out. The results are
given in the form of a table, wherein the input data determining process and
the output data determining the quality of irrigation are differentiated. The
developed method makes it possible to select a set of inputs that yields the
best quality of irrigation.
Auth.
10.C10.16.
Calculations of recession of
groundwater levels caused by
vertical drainage boreholes in an
arid climate. /R.
Litvak/. Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 139-142. – rus.; abs.: geo., eng.,
rus.
This paper describes dependencies needed for the
calculation of vertical drainage boreholes in case of significant inversion
evaporation of groundwaters. The inversion is considered as a constant value in
the zone adjacent to the borehole, where the depth of groundwater level (GWL)
is below a critical one. In the area, where the GWL is above the critical
level, the inversion of evaporation depends linearly on the unknown depths of
GWL. We have taken into account the overflow from the underlying aquifer. We
have carried out the comparison between the predicted falls of GWL and the
falls calculated by traditional methods with purpose to illustrate the
importance of a detailed calculation of evaporation inversion under the
climatic conditions of Central Asia. The calculations were performed for the
climatic and hydrogeological conditions of the northern part of Bishkek. The
difference in the predicted depths is more than 1m of GWL. If the depth of
groundwater level is shallow (1-2m), this error is unacceptably large
indicating that the inability to use the traditional formula for the
calculation of vertical drainage in the climatic conditions of Central Asia.
Auth.
10.C10.17. Recommendations for the
theoretical determination of the planned configuration of debris threshold. /G. Loginov/.
Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 143-149. – rus.; abs.: geo., eng., rus.
The paper
offers the methods needed to provide the theoretical description for the
protection of heads against debris flow on mountain river's water intake structures.
The type needed to determine the planned configuration of debris thresholds is
substantiated.
Auth.
10.C10.18.
The role of small reservoirs in the protection against mudflows (by the
example of Tajikistan). /D.
Mamatkanov, U. Murtazaev, I. Saidov/. Collected Papers
of Institute of Water Management. – 2011. –
#3. – pp. 155-158. – rus.; abs.: geo., eng., rus.
The paper describes the
significance of reservoirs as a man-caused factor used to minimize the serious
consequences of natural disasters (landslides, floods, etc.). The construction
of small reservoirs for both debris-interception and debris-storage purposes as
one of the main directions in the engineering protection of Tajikistan’s lands
is proposed.
Auth.
10.C10.19.
The impact of irrigation and drainage land-reclamation on the
hydrogeological conditions of the Mugan-Salyan steppe of Azerbaijan. /E. Mamedova, S. Aliev/.
Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 159-162. – rus.; abs.: geo., eng.,
rus.
The impact of irrigation and
drainage land-reclamation on the hydrogeological conditions of the Mugan-Salyan
steppe of Azerbaijan as well as the hydrogeological conditions before and after
the construction of the main Mil-Mugan collector have been studied and a
comparative analysis of the groundwater regime performed.
Auth.
10.C10.20. Some
problems of effective management and protection of water resources in Armenia. /T. Martirosjan/
Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 163-166. – rus.; abs.: geo., eng.,
rus.
The
article presents the main areas of water use in Armenia,
analyses of problems that impede the effective
development of management and preservation of water
resources, and identifies priorities for the solutions of these
problems.
Auth.
10.C10.21. Basic issues of irrigation water supply
management. /M. Mkrtumyan, G. Hovhannisyan/. Collected Papers of
Institute of Water Management. – 2011. –
#3. – pp. 171-174 – eng.; abs.: geo., eng., rus.
Irrigation
water
supply has a great role in the development of agriculture of the Republic of Armenia.
During
the last years there was recorded a 13% increase in the cultivated land and
change in the composition of crops - there was 15% increase of the profitable
crops occupying areas in the republic. One of the main problems of the system
is the mechanical water supply, which seriously increases the cost of
irrigation water. The role of a correct tariff policy is of great importance in
the sphere of irrigation. 3 closed joint stock companies are engaged in supply
of irrigation water. The projects
on the restoration of supply mains have been implemented, (about 310 km main
canals have been restored with a value of AMD 29 billion). A
yearly demand for funds needed for the use of irrigation systems totals AMD 8.4
billion. The basic
repair and restoration works of open and closed drainage systems are generally
included in the Millennium Challenge project, accounting for up
to USD 15.68 million.
Auth.
10.C10.22. Prospects for the
improvement of subsoil drip irrigation of mountain and foothill areas. /G. Omsarashvili, A. Sakhvadze, G. Omsarashvili, L. Sakhvadze/. Collected Papers of
Institute of Water Management. – 2011. –
#3. – pp. 180-184. – geo.; abs.: geo., eng., rus.
A
hydraulic circuit of subsoil drip irrigation providing for water movement and
transport of moisture in the soil, which depends not only on the gravitational
law but also on the surface-molecular forces is proposed. For this purpose
proposed and designed is a new automatic plant allowing for optimally partial
discharges in the distribution water mains.
Auth.
10.C10.23. Criteria
for the filtration stability of soils. /V. Shurgaya, Sh.
Kupreishvili, P. Sichinava/. Collected Papers of Institute of Water Management. –
2011. – #3. – pp. 198-203. – geo.; abs.:
geo., eng., rus.
The critical
filtration rate for a homogeneous soil has been found by rough approximation to
be numerically equal to the coefficient of filtration. The formulas enabling to
determine changes in the filtration coefficient within a definite time interval
and to calculate the desalting capacity and the amount of soil gypsum are
given.
Auth.
10.C10.24. Assessing
the risk of floods on the Kura River below the confluence of the Araks River. /N. Hasanova/. Collected Papers of
Institute of Water Management. – 2011. –
#3. – pp. 212-215. – rus.; abs.: geo., eng., rus.
Floods and their adverse effects require assessment
and analysis in terms of environmental safety. The probability theory is
applied to perform flood risk assessment on peak discharge of the Kura
River below the confluence of the Araks River. Notwithstanding the construction
of Mingechavir and Araz reservoirs on the Mtkvari and Araz respectively the
risk of flooding remains to be rather high.
Auth.
10.C10.25. Comparison of hydraulic and chemical transport
properties of sandy and silty clay loam soils. /G.
Chighladze/. Hydroengineering. – 2012.
– #1-2(11-12). – pp. 6-11. – eng.; abs.: geo., eng., rus.
The simultaneous
transfer of solute and water was studied in a laboratory experiment using sandy
and clay soil debris. The breakthrough curves (BTC) were plotted for both soil
types based on the calculated dispersion coefficients and retardation factors,
and compared to each other. The model accurately predicted the dispersion
process for the sandy soil, while did a poor job for the silty clay loam. This
drawback was primarily attributed to the lack of the model to describe the
adsorption process. For an accurate estimation of solute transport usage of
more comprehensive models was suggested.
Auth.
10.C10.26.
Environmental protection of the Black Sea coast from marine abrasive processes
through regulation of sedimentary runoff. /R. Diakonidze, G.
Chakhaya, L. Tsulukidze/. Hydroengineering. –
2012. – #1-2(11-12). –
pp. 12-26. – geo.; abs.: geo., eng., rus.
The
paper discusses the feasibility of stabilization of abrasive processes of the
Black Sea coast by means of regulating the sedimentary runoff transported by
rivers into the sea. The quantity of the deficit of sedimentary runoff volume which
will stop or considerably reduce the wash-out and losses of the coastal zone is
determined. Empirical calculation dependences of average annual discharge of
the predicted values of sedimentary run-off of the rivers into the Black Sea
are proposed.
Auth.
10.C10.27.
Modeling of corrosion processes of pipelines for reliability prediction of
water supply systems. /K.
Kamkamidze, I. Berdzenishvili, D. Kiknadze/. Hydroengineering. – 2012. –
#1-2(11-12). –
pp. 34-39. – rus.; abs.: geo., eng., rus.
The
dynamics of corrosion development on pipe walls is considered. The basic
factors causing the corrosion are given and corrosion rate of steel pipes in
aggressive medium are evaluated. Use of pipes enameled by the latest direct-on
technology increases the reliability of water supply systems up to 50 years.
Auth.
10.C10.28.
On the problem of consumers continuous supply with drinking water. /I.
Klimiashvili, N. Natsvlishvili, M. Natsvlishvili/. Hydroengineering. – 2012. –
#1-2(11-12). –
pp. 40-45. – geo.; abs.: geo., eng., rus.
Pressure
values in mains system for providing a continuous supply of drinking water to
communities are considered which is conditioned with the necessity of
evaluation of the work done by water supply services to eliminate drinking water
supply by, the so-called, “schedule”. General sequence of pressure values
estimation characteristic to water supply system in settlements is proposed
with the aim of 24-hour continuous supply of drinking water.
Auth.
10.C10.29.
Thermal pumps and their application in heating systems. /M. Grdzelishvili, O. Giorgobiani, A. Kopaliani/.
Hydroengineering. – 2012. – #1-2(11-12). – pp. 100-108. – geo.;
abs.: geo., eng., rus.
The
use of thermal pumps in heating systems is considered. The schemes of their installation
and classification according to different features are presented. When using
pumps the evaporators and capacitors change place. In capacitor is evaporated
working medium which passing through capacitor passes to environment (soil,
water, atmosphere) with the help of heat exchanger. Implementation of thermal
pumps make heating system more safe, economic and ecologically safe.
Auth.
10.C10.30.
Water flow motion on horizontal permeable bottom. /R.
Kiladze/. Hydroengineering. – 2012.
– #1-2(11-12). –
pp. 109-114. –
eng.; abs.: geo., eng., rus.
Surface
irrigation in the case of horizontal bottom is considered as unsteady motion of
water on permeable bottom which is described with the system of Saint Venan’s
differential equation. For the solution of this system numerical
(finite-difference) methods are used which, when using respective boundary
conditions, enable a computer simulation of the process. The results of various
versions of irrigation are given in the table.
Auth.
10.C10.31. On estimation of drinking water unit discharge in
populated areas of Ajara. /L. Klimiashvili, M.
Natsvlishvili, N. Natsvlishvili/. Hydroengineering. –
2012. – #1-2(11-12). – pp. 115-118.
– geo.; abs.: geo., eng., rus.
The major indices of water
supply systems of Khulo, Shuakhevi, Keda, Khelvachauri and Kobuleti populated
areas are considered and the values of drinking water unit discharge per
inhabitant are recommended.
Auth.
10.C10.32.
Estimation of Indices of Tbilisi water supply system reliability.
/L. Klimiashvili, M. Natsvlishvili,
I. Klimiashvili/. Hydroengineering. –
2012. – #1-2(11-12). – pp. 119-124. – geo.; abs.: geo., eng., rus.
The characteristic
values of Tbilisi water supply system reliable functioning worked by the Georgian
Water and Power Company are considered. The number of failures in water mains,
their causes, the operation conditions, factors and time of their origination,
as well as the total time of disconnections during repair and restoration
operations are evaluated.
Auth.
10.C10.33. Analysis of contemporary condition of Telavi
City potable water supply. /U. Zviadadze, M.
Mardashova, N. Kitiashvili/. Transactions of Technical University of Georgia. – 2012. – #1(483). – pp. 49-54. – geo.; abs.: geo., eng., rus.
Telavi is the biggest
city of Kakheti region, with 30 000 inhabitants. The present work considers the
question of water supply of Telavi both in the past, when the centralized water
supply was practiced, and under the present conditions. Both the quantitative
and qualitative parameters of potable water and the alternative, more
cost-effective options of water supply are analyzed.
Auth.
C11. Foreign
and Domestic Trade. Tourism
10.C11.1. Prospects
of development of the mountaineering and ski complexes in the Tergi and
Aragvi river gorges. /D. Akhvlediani/. Metsniereba da Teknologiebi. – 2011. – #4-6. – pp. 114-118. – geo.; abs.: eng., rus.
The article presents a programme of the
development of the mountaineering and ski complexes of Georgia. The programme
is based on a research which should determine: the real existence of the
objects to attract tourists; ski and alpine zones and their potential, the
length of the tourist season; possibilities of different kinds of tourism:
mountaineering, alpine, equestrian, hunting and fishing, boating (rafting),
cognitive, ethnographical, ecological, geological, etc. As a result of
researches and estimations, the received programme conditions the making of an
architectural plan target and follow-up implementation of the project.
Auth.
10.C11.2. Agrotourist
market requirements in Georgia.
/M.Vadachkoria/. Metsniereba da Tskhovreba. – 2012. – #1(5). –
pp. 75-80. - geo.; abs.: geo.,
eng., rus.
Worldwide experience
has demonstrated that agro-tourism and agriculture remain to be priorities in
the development of country’s national economy. Tourism development in rural
areas makes it possible to employ local people and increase the local demand
for agro-tourism product. Today, when living conditions in rural areas are
complicated and incomes of local residents are low, getting a niche in the
agro-tourist markets and offering agro-tourist services become the priority
direction in poverty reduction.
Auth.
10.C11.3. On the
promotion of competitiveness of agro-tourism management. /B. Gechbaia, A. Devadze/. Metsniereba da Tskhovreba. – 2012. – #1(5). – pp. 88-94. – geo.; abs.: geo., eng., rus.
To date the
agro-service market has not been formed in Georgia; agro-tourism development
lacks science-based and approved methods. In addition to government
authorities, municipalities with tourist potential, regional governments and
interested organizations should be involved in the initiation and organization
of this business. A list of agro-tourism services would contribute to
competitiveness of agro-tourism competitive and in case of proper approach it
can compete with both local and foreign tourist services. The
development of agro-tourism for Georgia, especially for Adjara, may also
promote further development of the entire agricultural sector in the country.
The agro-tourism management principles should be based on the concepts of
further development of the Georgia’s agrarian sector and handling the relevant
problems.
Auth.
10.C12.1. Selecting the track cable for a pendulum tramway. /M. Tsereteli, N. Makharashvili, I. Tsereteli/. Mining Journal. –
2012. – #1(28). – pp. 63-64. – geo.; abs.: rus., eng.
The empirical
formulas for selecting the track cable for a pendulum tramway are given The
formulas simplify the calculation of the “virtual” value of the difference of
level by finite supports, to which the maximum sag of the track cable
corresponds, when the latter rests on a support. After the latter is
determined, the calculation of the weight of one meter of the cable makes no
problem.
Auth.
10.C12.2. Differential
equations of motor car’s discontinuous-contact additional motion of brake transmission
with clearances. /G. Sharashenidze, P. Kurtanidze, T. Dundua, T. Motsonelidze, G.
Usanetashvili/. Metsniereba da Teknologiebi. – 2011. – #4-6. – pp. 103-109. – geo.; abs.: eng., rus.
The work considers an issue of forming
differential equations of additional discontinuous-contact motion of electric
train motor car’s brake transmission. The differential equations of motion
according to transmission design model are compiled taking into account the
generalized coordinates of motion and deterioration of swivel elements. The
design model with the moving frame enables to generate other types of
differential equations of additional motions in order to determine the optimum
clearance and permissible dynamic loads.
Auth.
10.C12.3. Tendencies of development of a network of filling stations in Georgia. /V. Kharitonishvili/.
Transactions
of the Technical University of Georgia. – 2012. – #1(483). – pp. 111-115. – geo.; abs.: geo., eng., rus.
An analysis of
methodical approaches to the handling of problems concerning the development of
a network of filling stations as simulation of the queuing system development
is given. The necessity of working out of science-based recommendations on
rational arrangement of filling stations and perfection on their basis of
corresponding technical regulations is substantiated.
Auth.
10.C12.4. Logistics complexes and
interaction of transport means. /R. Velijanashvili, T. Kokoladze/. Business-Engineering. – 2012. – #4. – pp. 69-73. – geo.;
abs.: eng.
The geographical location of
Georgia and the length of motor ways crossing the South Caucasus, including the Central Asia transport corridor - the new Silk Road - ÒÐÀÑÅCÀ, require the necessity of setting
up of a logistics centre, which would undertake information support to the
existing transport infrastructure (sea ports, railway, motor roads),
establishment of rational links between cargo owners and cargo
carriers, as well as collection of information on the traffic of motor road transport and rail rolling stock between transport nodal points.
Auth.
10.C13.1. Long-term
(6-month) hypolipidemic therapy peculiarities in patients with hypothyreosis in postmenopause period. /M. Balavadze, M. Akhvlediani, D. Gacheciladze, Sh. Avaliani, M. Khubua, N. Edisherashvili/. Actual Topics on Women Health. – 2012. –
#1. – pp. 7-10. – geo.; abs.: eng.
The present study aims at revealing long-term
(6-month) hypolipidemic therapy peculiarities in women with hypothyreosis
taking into consideration the blood lipid metabolism. 156 women in
post-menopause (average age 58.4 ± 5.3) were involved with the total
cholesterol exceeding 6.2 mmol/l. The patients were divided into 2 groups.
Group I consisted of 80 women with subclinical hypothyreosis, where TSH
exceeded 4.0 mkIU/ml); group II consisted of 76 women with clinical
hypothyreosis, TSH being less than 4.0 mkIU/ml. Both groups were divided into
subgroups. The hypolipidemic treatment with 20 mg atorvastatin was carried out
in the women of subgroups I and III, while in II and IV subgroups no specific
hypolipidemic treatment was carried out. The patients were given general diet
recommendations. The 6-month hypolipidemic therapy with atorvastatin in
hypothyreosis appeared to be more affective than diet.
Auth.
10.C13.2. Heterozygous
mutation of MTHFR gene and recurrent loss of pregnancy. /M. Janelidze, N. Khochiashvili, N. Phirtskhelani, T. Barbakadze, N.
Shurgaia/. Actual Topics on Women Health. – 2012. – #1. – pp. 11-13. – geo.; abs.: eng.
The results of our clinical studies suggest
that in case of genetic heterozygous mutation of MTHFR gene in pregnant women,
despite normal levels of homocysteine in their blood, the recurrent loss of
pregnancy may develop. We believe that this is mainly due to the deficiency of
folates in the organism, because an adequate treatment with folic acid has
allowed us to achieve in such pregnants a normal development of pregnancy process
with physiological delivery of healthy newborns. Based on the foregoing, we
conclude that normal levels of homocysteine in blood cannot be a reliable
marker to determin the normal level of folats.
Auth.
10.C13.3. Bone mineral density in
women with surgical menopause. /M. Zodelava, M.
Janelidze, V. Khatiashvili, N. Shurgaia, T. Mamaladze, N. Tskhovrebashvili/.
Actual Topics on Women Health. – 2012. – #1. – pp. 14-16. – geo.; abs.: eng.
Natural menopause is the permanent ending of
menstruation that is not brought on by any type of medical treatment. However,
not all women undergo natural menopause. Some women experience induced
menopause as a result of surgery or medical treatments (chemotherapy, pelvic
radiation therapy). Medically induced menopause does not offer women the chance
to enter menopause gradually. Symptoms produced by premature menopause may be
of short or long duration, and can produce physical and psychological distress
that impacts the quality of life. Induced menopause at an early age, due to the
abrupt cutoff of ovarian hormones, may also result in an increased risk for
developing osteopenia and osteoporosis. The primary aim of this study was to
determine BMD in women with surgical induced menopause. The study was carried
out on the women with surgical menopause from 30 to 50 years (n = 95). The
women were divided in two groups: I group – women with hysterectomy include
bilateral oophorectomy (n=52) and II group – women with hysterectomy with
removal only one ovary (n=43). Duration of menopause was from 5 to 15 years.
This groups were compared with age-matched control group (n=22). BMD was
measured at three sites (distal radius, midshaft tibia and proximal phalanx)
using the ultrasound bone sonometer (Sunlight Omnisense). Results were interpreted in accordance with criteria adopted by
the WHO by T-score. The mean data of T-score in the group I of women was:
distal radius - 2.7±0.12; midshaft tibia -3.1±0.08; proximal phalanx -
3.8±0.13. In the II group T-score was: -1.9±0.05; -2.4±0.05; -2.9±0.04
respectively. In control group decrease of BMD was not so significant, T-score
was: -1.2±0.03; -1.1±0.05; -1.5±0.07 respectively. In the both groups of the
women with surgical induced menopause BMD was decreased reflecting different
degrees of osteopenia and osteoporosis. However, in the group of the women with
hysterectomy and bilateral oophorectomy the osteoporosis was more severe and
depends on the duration of menopause. While physicians conducting
hysterectomies no longer routinely remove otherwise healthy ovaries as a
“preventive” measure, there are still many oophorectomy performed, with all
following results mentioned before.
Auth.
10.C13.4. Immunological treatment of infertility with limphoimmuno logical method. /N. Rusakova/. Actual Topics
on Women Health. – 2012. – #1. – pp. 19-21. –
geo.; abs.: eng.
For resorting immunology of
the organism of sterile woman and blocking factor of autoserum addition
stimulation – immunization with father’s antigens is needed. Limphoimmunotheraphy
has lots of advantages. The method of immunization by means of purified
lymphocytes has been used at Zhordania Institute of Human Reproduction from
2008.
Auth.
10.C13.5. The use of β-adrenoblockers in the
treatment of arterial hypertension in pregnant women. /T. Kezeli, G. Tabidze,
T. Tsibadze, N. Dolidze. /. Actual Topics on Women Health. – 2012. – #1. – pp. 22-23. – geo.; abs.: eng.
The literature on the
application of β-adrenoblockers for the treatment of arterial hypertension
during pregnancy. is reviwed. Decisions concerning the administration of
various preparations from this group in pregnant women should be taken with
consideration of efficacy in correction of hypertension and safety for fetus
and neonate. The review contains a discussion of advantages and drawbacks of
the use of β-adrenoblockers for the treatment of hypertension in
pregnancy as compared with other antihypertensive drugs.
Auth.
10.C13.6. Treatment of infertility with stem cells. /N. Papidze/. Actual Topics on Women Health. – 2012. – #1. – pp. 24-29. – geo.; abs.: eng.
Infertility is a great
medical and social problem of our century. A full diagnosis of infertility
requires a long period of time. Today, there is reliable information that
infertility can be defeated using stem cells.
Auth.
10.C13.7. Calcitonin gen-related peptide-dependent state of fetus under conditions
of experimentally induced pre-eclampsia. /G. Bekaia, E. Sukhishvili/. Actual Topics on Women Health. – 2012. – #1.
– pp. 34-37. – geo.; abs.: eng.
It is shown that systemic administration of
calcitonin gene-related peptide (CGRP) can reverse hypertension in pregnant
rats induced by blocking of nitric oxide production. This effect occurs only
during pregnancy but not after birth. Simultaneously, with the decrease in the
level of systemic arterial blood pressure, the CGRP significantly reduced the
incidence of fetus mortality caused by preeclampsia, although has no effect on
the loss of its average weight.
Auth.
10.C13.8. Treatment of viral
hepatitis by acetate of magestrol. /I. Omanidze, S. Badzgaradze, M.
Mzhavanadze, S. Grigorashvili/.
Actual Topics on Women Health. – 2012. – #1. – pp. 41-43. – geo.; abs.: eng.
According to statistics, 200 000 people, and that
is 7% of the total population, suffer from hepatitis C in Georgia,. For the
combined treatment the Italian medicine “Stromeg” – Acetate of Magestrol 160 mg
was used. In all the cases good and satisfactory results were observed.
Auth.
10.C13.9. Monitoring of bone
mineral density in women with breast cancer. /G. Tsikhiseli, S. Nizharadze-Tsikhiseli, M.
Zodelava, T. Mamaladze, N. Tskhovrebashvili/. Actual
Topics on Women Health. – 2012. – #1. – pp.
43-46. – geo.; abs.: eng.
Breast cancer (BC) patients should be
particularly alert to the decrease of bone mineral density (BMD), as many BC
patients receive treatments that may increase their risk of developing
osteoporosis. The aim of the present study was to determine BMD in women with
BC, to consider for them adjuvant
therapy after successful treatment for BC with the following BMD monitoring. 80
women with new case histories of BC aged 35-76 years were studied. All the
patients were divided into four age-matched groups. BMD was measured at three
sites (distal radius, midshaft tibia and proximal phalanx) using the ultrasound
bone sonometer (Sunlight, Omni sense). Results were interpreted according to
the criteria adopted by the WHO by T score. the mean data for T score in the I
group of patients with BC (n=14 age before 45 years) was: distal radius
-0,2±0,02; midshaft of the tibia -0,2±0,05; proximal phalanx -0,8±0,11; in the
II group (n=24, 46-56 years) T score: -0,8±0,09; -1,8±0,15; -1,6±0,11; in the
III group (n=20, 57-65 years) T score: -1,8±0,18; -1,7±0,13; -2,5±0,04; and in
the IV group (n= 22, 66 years and up) T score -2,2±0,14; -2,4±0,08; -3,4±0,11
at the same measurement sites respectively. in patients with BC was shown a
high rate of decrease of BMD from osteopenia to osteoporotic changes, especially
in the older postmenopausal groups, where BC and osteoporosis are common, and
although both are dependent on estrogens, this leads to conflicting
implications for the treatment: estrogen reduce the risk of fractures but
increase the risk of BC. So, it is important that BMD must be determined in all
women with BC, follow up monitored and, when necessary, is prophylactic
appropriately protected considering their postoperative therapy.
Auth.
10.C13.10. Possibility of bariatric surgery in the
treatment of severe obesity complicated by type II diabetes. /Kh. Kaladze, S. Kavtaradze, M. Gogoli/. Actual Topics on Women Health. – 2012. –
#1. – pp. 58-60. – geo.; abs.: eng.
This randomized trial with a 1-year follow-up
was performed in 45 severe obese patients. 15 patients received standard
medical therapy, 15 patients received medial therapy plus gastric bypass, and
15 patients received medical therapy plus sleeve gastrotomy. The main endpoint
was a glycated hemoglobin level of ≤ 6% at the conclusion of the trial.
The proportion of patients reaching the primary endpoint was 14% in the medical
group, 48% in the gastric bypass group, and 39% in the sleeve gastrotomy group.
No deaths were reported. Plasma glucose levels, reduction in required diabetic
medications, and weight loss were all significantly improved in the 2 surgical
groups. Serious complications were more frequent in patients undergoing gastric
bypass. A total of 4 patients in the 2 surgical groups required another
operation.
Auth.
10.C13.11. Modern views on implants, fixed plate prothesis
in the case of complete adentia. /V. Khutashvili/. Actual Topics on Women Health. – 2012. – #1. – pp. 61-64. – geo.; abs.: eng.
The article presents an analysis of the treatment
of further results of 65 patients who had a complete adentia and were treated
through removable dental plate prostheses fixed on implants. Studies conducted
in groups of patients with different construction and implants enabled to
identify the basic principles which have significant influence on immediate and
further consequences of treatment. The obtained information allows to raise
significantly [according to preliminary calculations 18-20%] the efficacy of
the treatment in time. Given that the treated patients had type II, III and IV
atrophy according to Oxsman classification and that alveolar atrophy is an
irreversible process, the percentage is rather high.
Auth.
10.C13.12. Expression
and intensity of epidermal growth factor in human endometrium. /N. Dznelashvili, A. Mariamidze, D. Kasradze,
A. Tavartkiladze/. Actual Topics on Women Health. – 2012. – #1. – pp. 70-73. – geo.; abs.: eng.
The epidermal growth
factor was isolated in 1962. Alongside with many other effects, the factor
activates the proliferation of granulocytes and hampers their differentiation,
inhibiting the production of progesterone, estradiol and inhibin in these
cells. It activates proliferation of cultivated placental trophoblasts, not
revealing, however, similar effect in respect of their differentiation. The
factor also accelerates embryonic development, facilitates proliferation of
mammary glands cells and impairs their differentiation. Additionally, Epidermal
Growth Factor exerts influence on the uterine endometrium. It can
synergistically interact with estradiol; estrogen stimulates EGF synthesis in
the endometrium. Excessive amount of estrogen intensifies endometrial
proliferation,
entailing the augmentation of EGF activity as well as expression of its
receptors. Nevertheless, it is capable of operating independently to stimulate
epithelial cell growth. EFG is a risk- bearing sign in tumor prognosis;
consequently the inhibition of its receptors may decrease the possibility of
tumor progression (malignization).The most attractive point for us was to study
EGF in the case of endometrial hyperplasia. We have studied 35 women including:
22 patients of reproductive age (27-45) with disturbances of menstrual cycle
revealed by menometrorrhagia. The second group consisted of 8 patients of
pre-menopausal age with irregular menstrual cycles and dysfunctional uterine
bleeding. Clinical study (endovaginal ultrasound examination) enabled to
diagnose endometrial hyperplasia revealed by metrorrhagia. The material for
morphologic investigation was obtained by endometrial scraping. Morphological
and histological study was carried out as well. Fixation of the material was
performed in 4% neutral formalin buffer for 24 h with subsequent embedding in
paraffin, 4 mcm thick sections were attached to (placed on) a poly-L-lysine
covered glass. Part of the sections was stained with hematoxylin and eosine
(H&E). In order to obtain histological samples (specimens) for
immunohistochemical investigation, primary antibodies anti-EGFR (Novocastra; Leica
Biosyshems Newcastle Ltd., UK) were used. For blocking endogenous peroxidase
the sections were deparaffinized and treated with 30% hydrogenperoxidase (10
min). Restoration of antigens was performed using 0.01M citrate buffer allowed
for 20 min cooling. It was then washed in triphosphate buffer (Tbs) for 5 min.
Incubation by protein blocking was allowed for 5min and then washed in Tbs (2x5
min). Incubation was performed by anti-EGFR dilute solution of 1:5 for 60min at
25°C. Then the solution was washed in Tbs (2x5min) and incubated for 30min
using Post primary block followed by washing in Tbs (2x2 min). Subsequent
incubation was performed using Novo Link Polymer for 30 min; the solution was
then washed in Tbs (2x5 min.) Peroxidase was activated using process solution
of diaminobenzidine for 5 min, rinsed with water and the nuclei were stained
with hematoxylin (5 min.). Hyperplasia typing was performed on the basis of
histological specimens with the clinical variant being determined.
Immunohistochemical study revealed the intensity and spread (distribution,
expansion) of EGF receptors staining. The intensity was defined as follows: ++
relatively intense staining; + moderate staining; +/- weak staining (Hitoshi
Nikura et al.), the percentage being calculated. The numerical data obtained
were processed statistically using SPS-12. For comparison, conventional
standard was used (Hitoshi Nikura et al. October 20, 1995). Out of 27 patients
of reproductive age, simple hyperplasia without atypia was revealed in 13 women;
common hyperplasia with atypia – in 2 women; complex hyperplasia without atypia
– in 13 women; complex hyperplasia with atypia – in 1woman. Out of 8 patients
of pre-menopause age, 6 women showed simple hyperplasia without atypia, while
complex hyperplasia without atypia was seen in 2 patients. In total, out of 35
patients investigated, 19 patients had simple hyperplasia without atypia and 15
patients had complex hyperplasia with atypia. Based on the results obtained,
the intensity of EGF was revealed in 100% of the patients. With that, weak
expression was observed in 51.4%, while strong expression was seen in 48.4% of
the patients. In simple hyperplasia, EGF is revealed with different rate of
intensity; however weak intensity seems to be prevalent (11 patients out of
19). It turns out that predominance of weak expression is characteristic of
simple hyperplasia. In complex hyperplasia both weak and strong expression was
observed. Out of 17 patients with complex hyperplasia 10 showed strong
expression, 7 showed weak expression, while 2 patients showed both weak and
strong expression of the factor. In atypic hyperplasia (though seen in only one
patient) strong expression was seen. Thus it can be concluded that expression
of EGF in human endometrium is prominent in 100%; besides, EGF staining
intensity increases with the exacerbation of hyperplasia severity.
Auth.
10.C13.13. Chemical
aspects of the use of phenolic compounds.
/M. Sikharulidze, M.
Esaiashvili, I. Chkhikvishvili, S.Skliarenko/. Actual
Topics on Women Health. – 2012. – #1. – pp.
74-76. – geo.; abs.: eng.
These active ingredients
have been found to correct dyslipidemia, normalize the glucose level, and
decrease the overproduction of pro-inflammatory free radicals (NO-,
superoxide-radicals) in animal and human studies.
Auth.
10.C13.14. Stem
cells and prospects of their application in practical medicine. /N. Aleksidze/. Metsniereba da Teknologiebi. – 2011. – #4-6. – pp.
121-130. – geo.; abs.: eng., rus.
The biological properties of stem
cells, their distribution in different organs and tissues, and the up-to-date
separation, cleaning, multiplying and conservation technologies are discussed.
The achievements of medicine in the treatment of people by using stem cells and
the prospects of their application are described in detail.
Auth.
10.C13.15. The effect
of age determination and athletic training factors on heart rate. /G. Zubitashvili, D. Chitashvili/. Bulletin of the Georgian National
Academy of Sciences. – 2012. – vol. 6. – #1. – pp. 125-128. – eng.; abs.: geo.,
eng.
The decrease dynamics of the heart rate of judokas with an increase of
age is discussed. The degree of influence of age and training factors on heart
rate decrease is estimated. It was found that over a 10-year period (8 to 18
years of age) in untrained individual’s heart rate decreases on the average by
18 units, which is due to age, while in persons training in judo this index
decreases on the average by 23.97 units. In the given age range, for judokas
the data on heart rate decrease by additional 5.97 units compared with the
untrained persons (23.97-18) is subjected to the effect of training factor.
Auth.
10.C13.16. Damage of cardiovascular system during systemic lupus
erythematosus. /G.
Chakhunashvili, N. Jobava, A. Bliadze/. Pediatric Cardiology. – 2012 – #6. – pp. 8-14. – geo; abs.: geo., eng.
The articles presents
a review of modern literature about damage of the cardiovascular system during
systemic lupus erythomatosus and concludes that the disease is still of urgency
and requires special attention at any age, especially during the neonatal
period, in order to intervene in time and prevent upcoming complications.
Auth.
10.C13.17. Early discovery of morphologic (adaptive, pathologic) changes in cardiovascular
system and modern governance of training process in young sportsmen. /G. Chakhunashvili, I. Dolidze, N. Jobava, K. Chakhunashvili, Z. Pkhaladze, T. Gogatishvili/. Pediatric
Cardiology. – 2012 – #6. – pp. 15-20. – geo; abs.: geo., eng.
The article reviews
the literature about early dysfunction and morphologic changes in
cardiovascular system and modern training processes in young sportsmen (footballers)
and focuses on the importance of proper governance of the training process and
timely response to even minor such changes.
Auth.
10.C13.18. Status of the cardiovascular
system during clandestine vegetative dysfunction and vascular reactivity in young sportsmen (subjects of diagnostic, treatment and
prevention). /G. Chakhunashvili, I. Dolidze, N. Jobava, K.
Chakhunashvili, Z. Pkhaladze, T. Gogatishvili/. Pediatric Cardiology. – 2012 – #6. – pp. 20-24. – geo; abs.: geo., eng.
The article reviews
the literature about the cardiovascular system status during clandestine
vegetative dysfunction and vascular reactivity in sportsmen children and
teenagers (subjects of diagnostic, treatment and prevention), concluding on the
necessity of constant physicians’ control, perfection of the training process,
increasing the restoration rate of the sportsman’s organism in order to prevent
further complications after irrational physical stress. All above said requires
professional cooperation between pediatricians and sports doctors, so that a
sportsman gets optimal training process.
Auth.
10.C13.19. Value of Dysrhythmias and Mitral Prolapse Diagnosis in Modern Pediatric Cardiology. /G.
Chakhunashvili, N. Jobava, M. Shvangiradze, M. Inasaridze, T. Gogatishvili, A.
Bliadze/. Pediatric Cardiology. - 2012 - #6. - pp. 25-27. - geo;
abs.: geo., eng.
The
purpose of research was to show value of dysrhythmias and mitral prolapse
diagnosis in healthy sportsmen and diseased children. 250 children with mitral
prolapse were observed, 225 of them were diseased and 25 sportsmen. In disaesed
children with mitral prolapse we had dysrhythmia in 56%. Complex
clinical-instrumental research materials on revealing cardiomyopathies,
differentiation criterias, with predictors, must be implemented in Georgian
High Educational Intitutions, Clinical Departments and Sportschools.
Auth.
10.C13.20. Correction
of micronutrient deficiency in the treatment of cardiovascular diseases. /Sh. Zarnadze, I.
Zarnadze/. Pediatric Cardiology. – 2012 – #6. – pp. 28-29. – geo; abs.: geo., eng.
The regulation on the
addition of nutrients to foods recognizes that low intakes and even
deficiencies exist for some micronutrients within the CVD groups, and that
fortification has an important role in addressing such nutritional imbalances.
Most rely on approximations of current intakes from conventional foods, food
supplements and fortification (where practiced), with conservative assumptions
and additional safety factors to minimize the risk of excess intakes in CVD
groups, and thus are likely to underestimate the maximum safe level for many
nutrients.
Auth.
10.C13.21. A comparative analysis of the physical and functional
indicators of basketball players against the background of the action of
Apikori preparation. /K. Chakhunashvili, N. Jobava, N. Badriashvili, N. Topuridze, Z. Shakarashvili, G.
Chakhunashvili/. Pediatric Cardiology. – 2012 – #6. – pp. 30-32. – eng; abs.: geo., eng.
The work studies the
role of an amino acid, mineral and vitamin Apikori in sportsmen’s
rehabilitation, considering the initial health indices. A medical examination
of the cardiovascular system in 12 to 18 year-old 100 players under physical
load was carried out. The obtained data were entered and analyzed by
statistical software SPSS 11-5 The examination demonstrated the positive
effects of Apikori on the physical and functional indices of the players.
Auth.
10.C13.22. Dynamics of changes
in the immune system during acute
viral respiratory infections in children treated
with Apipulmo. /G. Chakhunashvili, N. Topuridze, N. Jobava, N. Badriashvili, K. Chakhunashvili/. Social,
Ecological & Clinical Pediatrics. – 2012 – #14-9-8. – pp. 27-29. – geo; abs.: geo., eng.
The purpose of the
research was to study dynamics of the changes in parameters of the immune
system of children with acute viral respiratory infections treated with
Apipulmo. Enrolled were 60 children aged 1 to 5 years with acute viral
respiratory infection. The patients were divided into two groups: group I with
32 patients undergoing symptomatic treatment and group II with 28 patients
getting Apipulmo with other basic treatment. The patients were under treatment
for 20 days. The test for immunological status was conducted before end after
the treatment session. Conclusions: 1. Apipulmo combined with basic treatment
significantly improves cellular as well as humoral Immune status of the
patients with acute viral respiratory infections. 2. Adding Apipulmo in the
basic treatment contributes to reduction of duration and complications of acute
viral respiratory infections.
Auth.
10.C13.23. Immunological
testimonies among the children with bronchopneumonia associatied with thymomegalia
disease treated with Apihepati. /G. Chakhunashvili, N. Badriashvili, N. Topuridze, N. Jobava, Z.
Shakarashvili, K. Chakhunashvili, T. Gogilashvili/. Social,
Ecological & Clinical Pediatrics. – 2012 – #14-9-8. – pp. 30-32. – geo; abs.: geo., eng.
The aim of the trail
research was to study the immune defenses in the children of early age with
bronchopneumonia. T- lymphocytes and their subpopulations CD3, CD4, CD8, the
percentage levels of B lymphocytes, Ig G, Ig A, Ig M, testimonies in the serum
of blood were studied. The results showed that cell immune system was more
damaged than humor immune system during bronchopneumonia and that Apihepati,
combined with the basic treatment, significantly improved the cellular and
humor Immune status of the patients with bronchopneumonia.
Auth.
10.C13.24. The secret
of reality of genomic imprinting. /M. Chipadze, E. Imnadze/. Social, Ecological
& Clinical Pediatrics. – 2012 – #14-9-8. – pp. 32-33. – geo; abs.: geo., eng.
Genomic imprinting is
an epigenetic phenomenon that involves gene expression – only from maternal or
paternal pair of chromosomes without altering the genetic sequence. Given, an
individual gets only semi-genetic information. This type of the uniparental
disomy becomes the reason of losing a copy of the active gene. The appropriate
expression of imprinted genes is important for normal development; otherwise it
can lead to physical, mental and other health-related problems.
Auth.
10.C13.25. Spreading
of subclinical hypothyreosis in pubertal age in Batumi. /T. Rukhadze, S.
Glonti/. Social, Ecological & Clinical Pediatrics. – 2012 – #14-9-8. – pp. 37-38. – geo; abs.: geo., eng.
Aim of the research
is to study spreading of subclinical hypothyreosis in girls of the pubertal age
in Batumi. 112 girls aged 11 to 15 were observed by ultrasound examination of
thyroid. TSH, FT4 and AT-TPO were defined in each of the examined girl’s blood
serum. The research showed a reliable growth of pathology due to subclinical
and manifested functional disorders of the thyroid.
Auth.
10.C13.26.
Parasitic
diseases of
children and age. /D. Tskhomelidze, I. Khabeisvili, D.
Chakhunashvili, B. Janelidze, M. Kutsia, T. Kasrashvili, N. Nishnianidze/. Social,
Ecological & Clinical Pediatrics. – 2012 – #14-9-8. – pp. 39-40. – geo; abs.: geo., eng.
Visceral
leishmaniasis is a parasitic disease spread in Georgia, which generally infects
children aged 2 to 4. However, since 1996 the number of infected adult people
has significantly increased. Worthy of mention is the circumstance that as a
result of examinations carried out in different regions of Georgia, visceral
leishmaniasis was also detected in children aged 6 months to 2 years.
Auth.
10.C13.27. Rate of occurrance and clinical features of teeth development
anomalies in the osteogenesis imperfecta patients. /K. Alania, M.
Iverieli, T. Chighladze, N. Abashidze, Kh. Gogishvili/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
3-6. – geo.; abs.: eng.
A rare
hereditary connective tissue disorder – osteogenesis imperfecta (OI) is the
reason of tooth (dentine) development anomaly – dentinogenesis imperfecta type
IB/DIIB (DI; DGI). Among the studied 19 patients DI clinical symptoms such as
tooth discoloration was revealed in 21 (05%/4) persons; early abrasion – 36
(84%/7); peculiar form of teeth crown and root – 21.05%/4; increased
constriction of the coronal-radicular junction, obliterated pulp chamber, short
and narrow roots – 0%/0; periapical destruction of intact tooth root – 5.26%/1.
Therefore, out of the examined OI patients, DI was observed in 42 (10%/8)
persons. Adentia – tooth agenesis – is the anomaly of tooth number and is
mostly genetically determined. Among the studied patients one case of adentia –
5.26% was detected with the manifestation of clinical symptoms such as tooth
discoloration and early abrasion combined with the lack of 15 permanent teeth.
The exact etiology of hyperdontia or supernumerary teeth is still unclear, but
heredity is believed to be important. Out of the examined patients, one (5.26%)
had a supernumerary tooth near the front line of the face (mesiodens). In our
case, teeth development anomalies such as DI, adentia and hyperdontia has one
genetic basement – hereditary disease OI. According to current literature, it
is unknown whether there is any other relationship between them and is the
subject of future research.
Auth.
10.C13.28. Foreign body in the appendix (description of a
clinical case).
/L. Akhmeteli, L. Dzneladze, L. Saginashvili/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
6-7. – geo.; abs.: eng.
Foreign
bodies in the appendix are rather uncommon in some reported cases the
appendicular foreign bodies were asymptomatic for years. The acute onset of
clinical manifestation is more common in the case of sharp and jagged foreign
bodies. Small smooth foreign bodies can remain in the appendicular lumen
without any symptoms for a long time. A case is reported, when the patient swallowed
a nail and after 4 days developed a severe pain in the ileocaecal region.
Objective signs were tenderness on palpation of the lower right quadrant with
localized positive signs of peritoneal inflammation. An abdominal X-ray
revealed a foreign body (nail in the ileocaecal region). With a diagnosis of GI
tract foreign body, with possible damage of intestine, an operation was
performed. The foreign body (nail, partly in ceacum, and partly in the
appendix, with the sharp part directed towards the caecum) was found. The
foreign body was pushed manually into the appendix and appendectomy was
performed. Immediate operative treatment is indicated for all clinically
apparent cases. For those cases which are asymptomatic but the sharp foreign body is diagnosed, an operation should be
performed to avoid complications. For smooth little foreign bodies in the
appendicular lumen, operation can be postponed but planned appendectomy is
recommended.
Auth.
10.C13.29. “Malignant” adhesive disease of the abdominal cavity. /G. Azmaiparashvili, G.
Tomadze, A. Megreladze/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 7-9. – geo.; abs.: eng.
Scar
tissue normally is formed within an injured area, as a part of the healing
process. Adhesions appear on adjacent surfaces and can connect them. Abdominal
adhesions mostly appear after abdominal surgery or inflammation, and pelvic
adhesions – after gynecological operations or pelvic inflammatory disease. In
few hours after a surgical procedure (or other cause of tissue injury),
inflammatory cells and fibrin from the blood are attracted to the site of
injury; the end result is a scar formed between two cut surfaces. The same
scaring process can start to develop adjacent to the site of injury because of
mechanical irritation, drying, foreign bodies (piece of gauze, talc from
surgical gloves) or lack of oxygen in the peritoneum – abdominal membrane. In
the first days, fibrous adhesions made of fibrin (clotting substance derived
from the blood), may appear and cause a temporary bowel obstruction with
abdominal pain and constipation. These fibrous adhesions may disappear or
develop into permanent fibrous adhesions, made of fibrous tissue from collagen,
produced by fibroblasts, which may start to trigger symptoms months or years
after surgery. Permanent fibrous adhesions do not likely resolve spontaneously.
Three cases of “malignant” adhesive disease of abdominal cavity have been
presented. In all three cases, due to existing hyperplastic adhesions, it was
impossible to identify anatomical structures of intra-abdominal conglomerate
and to perform adhesion lysis (synechiolysis); therefore we called the
complication as “malignant”. In this case fatal outcome is common. One of the
main reasons of this type of adhesions can be traumatic injury and/or
inflammation in the abdomen as well as certain predisposition towards
hyperplastic synechiogenesis. Preventive measures are minimal traumatization of
bowels, adequate antiinflamatory treatment and early postoperative activation
of patients. Though all this measures cannot guarantee avoiding of the
complication.
Auth.
10.C13.30. The
serum level of glucose and insulin in patients with HCV infection. /T. Bochorishvili, E. Vashakidze/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 9-11. – geo.; abs.: eng.
The aim of
investigation was to study the role of insulin resistance in patients with HCV
infection. 130 patients were investigated: 20 with acute hepatitis C; 38 with
chronic hepatitis C; 72 with cirrhosis. The study demonstrated that the serum
level of glucose and insulin in the patients with liver cirrhosis was higher
than in the patients with acute and chronic HCV infection. The monitoring of
patients with insulin resistance is to contribute to the prevention of
complications and improvement of the quality of life.
Auth.
10.C13.31. HOMA-IR level after antiviral treatment in
patients with chronic hepatitis type C. /T.
Bochorishvili, E. Vashakidze/. Tbilisi State Medical University’s Collection of
Scientific Works. – 2011. – #45. – pp. 11-13. – geo.; abs.: eng.
The aim of this study
is to clarify the associations among the HOMA-IR level and the treatment
outcome of pegylated interferon and ribavirin therapy in HCV-infected patients.
The serum glucose, insulin and HOMA-IR levels before, during, and after
treatment in 30 chronic HCV patients were quantified. Low levels of glucose,
insulin and HOMA-IR were associated with a SVR. High levels were significantly
associated with a nonresponse to treatment. In patients with relapse HOMA-IR,
the level decreased during the treatment and after treatment returned to the
initial value. These results suggest that HOMA-IR level identification enables
early diagnosis and therapy of insulin resistance and will positively effect
the antiviral therapy efficacy.
Auth.
10.C13.32. On the optimization
of differential diagnostic algorithms for cheilitis. /M. Borjadze, M. Iverieli, O. Khardzeishvili, N. Abashidze, Kh. Gogishvili/.
Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
13-15. – geo.; abs.: eng.
On the basis of an
extended examination of 102 patients with various lip pathologies based on
clinical-morphological algorithm, an optimal scheme of differential diagnostics
was elaborated. Based on analysis of the examination results, the authors
conclude that the general process (sometimes preferential) of various lip
pathologies is inflammation, which, in some cases, may be represented by all
featuring components or residual and post-inflammatory changes. Based on the
above it may be recommended to include anti-inflammatory agents as the
necessary component in the list of remedies against lip pathologies.
Auth.
10.C13.33. Antioxidant
activity of celandine growing in Georgia. /A. Bozhadze, V. Mshvildadze, V. Vachnadze, A. Bakuridze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 15-16. –
eng.; abs.: geo.
The antioxidant
activity of alkaloids – chelidonine, stylopine, protopine and crude extracts
#1, #2 were assessed in vitro by ORAC
assay using AAPH, a generator of peroxyl radicals, and ex vivo using a cell-based assay. The obtained results indicate that
the ORAC value of alkaloid chelidonine is 25±3 μmol TE/mg (for control
quercetine is 7.0±0.2). But in ex vivo
assay chelidonine was not effective – IC 50 value was >100; the authors
think it is because chelidonine is cytotoxic for normal cells. The study shows
that pure alkaloid chelidonine obtained from celandine possesses antioxidant
activity and can serve as a raw material for obtaining a biologically active
drug.
Auth.
10.C13.34. Ameloblastoma
and aspects of its surgical treatement. /O. Bregadze, L. Atskvereli, N. Chuchulashvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 17-19. –
geo.; abs.: eng.
The authors discuss
the aspects of surgical treatment of ameloblastoma and suggest their own
position about three types of operational interventions applicable in the case
of ameloblastoma. The authors give preference to mandibular jaw block-resection
to be added with metal implants, where required. This operation ensures the
preservation of the unruptured mandibular bone and achievement of the desired
cosmetic and functional effect. In the case of the two reconstructive
operations (resection, exarticulation) with auto bone and metal implant,
neither cosmetic nor functional effect approaches the norm. The authors report
their own clinical case of operational technique and analysis of the post-operational
period.
Auth.
10.C13.35. Complications
of arterial hypertension and their prevention. /V. Gvantseladze, G. Giorgadze, N. Gvantseladze, T. Janashia/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 21-24. –
geo.; abs.: eng.
Case histories of 217
patients hospitalized because of emergency conditions if internal disease were
analyzed. The principal causes of hospitalization included: arterial
hypertension and its complications in 76 patients (70.7%), ischemic heart
disease – 40.7%; cerebral vascular disease – 9.2%. Timely clinical examination
and adequate treatment of hypertensive patients are at low level, while preventive
measures are a rare event. To reduce the disability and mortality rate caused
by hypertension complications, active intervention of the government in the
public health system is required to set up a new link equipped with skilled
physicians. Also necessary is the raising of patient self-consciousness and
improvement of the doctor-patient relations.
Auth.
10.C13.36. The
changes of the specific and nonspecific immunity indices during parodontosis. /N. Gogebashvili, L. Jashi/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 24-25. – geo.; abs.: eng.
Upon treatment of
parodontosis a study of the changes in indices of nonspecific immunity (the
migration of leucocytes in oral cavity, level of desquamation of epithelial
cells, SIgA and lysozyme in saliva) and specific immunity phagocytic activity,
CD3,CD4,CD8, CD19 of T and B immune system, anti-inflammatory cytokines IL1,
IL8, TNFa and interferon system INFa, INFg) has found the appearance of
secondary immune deficiency, the degree of which is indicative of the intensity
of inflammatory processes that theoretically proves the necessity of
immunomodulatory therapy. In this regard it is recommended to use
immunotrophic, antioxidant and detoxic phytogenetic preparations for
immunomodulation, which increase the treatment efficacy and provide rapid
normalization of specific and nonspecific indices.
Auth.
10.C13.37. Clinical evaluation of osteosynthesis methods
used in case of the traumatic injuries of the upper and middle zone of the
face. /Z. Gvenetadze, T. Danelia, G. Gvenetadze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 27-29. –
geo.; abs.: eng.
Despite the great
achievements of the maxillo-facial surgeons, the treatment issue of the face
upper and middle zone traumatic injuries is still of urgency. The importance of
this problem is conditioned by the escalation of the injuries and unsatisfying
treatment as a result of which different posttraumatic defects and deformations
with abrupt aesthetic and functional disorders tend to develop. The results of
treatment are compared in three groups of patients treated by various methods
of osteosynthesis. In group I (n=102) osteosynthesis was carried out using wire
suture. In group II (n=174) titanic miniplates and screws were used. In group
III (n=12) combined methods were used (simultaneous fixation by wire sutures
and titanium miniplates). Indications to the use of different osteosynthesis
methods are defined, errors and complications in osteosynthesis in the upper
and middle zones of the face are analyzed.
Auth.
10.C13.38. Working out the high-performance liquid
chromatography. Method for determining the quantity of fluoxetine on the
model of human blood plazma. /G. Gvritishvili,
L. Kunchulia, B. Chumburidze, M. Jokhadze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 30-33. –
geo.; abs.: eng.
A high-performance
liquid chromatography method of quantitative determination of fluoxetine in the
human plasma of Georgian population has been developed with the use of Waters
diode array detector (DAD). According to the authors, the applied method makes
it possible to measure the concentration of fluoxetine in the human blood
plasma within 1-200 ng, which is quite reliable for monitoring the fluoxetine
concentration in the plasma of patient’s blood for the purpose of safe and
effective treatment, also for forensic medicine purposes.
Auth.
10.C13.39. Prospective comparison of mini invasive
methods of surgical treatment of amebic liver abscesses. /G. Datuashvili, T. Tabutsadze, G. Lobzhanidze, B. Iremashvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 34-37. –
geo.; abs.: eng.
This work represents a
prospective comparison of the laparoscopic method of treatment of amebic liver
abscesses versus percutaneous needle aspiration. Considered is the surgical
intervention of amebic liver abscess in the following situations: high risk of
abscess rupture, as defined by cavity size greater than 5 cm; left lobe liver
abscess, which is associated with higher mortality and frequency of peritoneal
leak or rupture into the pericardium; failure to observe a clinical medical
response to therapy within 5-7 days and to differentiate from a pyogenic liver
abscess. Our study has shown that the laparoscopic intervention may be more
effective than percutaneous needle aspiration. There were no complications that
usually occur after needle aspiration. The study suggests that laparoscopic
intervention may avoid the problems related to intermittent percutaneous needle
aspiration. We consider that laparoscopy must become the method of choice in
surgical treatment of amebic liver abscess as far as it absolutely enables
aspiration, sanation and drainage of the abdominal cavity. Although further
proof with a large-scale study is necessary.
Auth.
10.C13.40. Nutrition and social protection of internally displaced persons (IDPs). /T. Darsania, D.
Raminasvili, Sh. Zarnadze,
B. Kurashvili, I. Zarnadze/. Tbilisi State Medical University’s Collection of
Scientific Works. – 2011. – #45. – pp. 37-38. – eng.; abs.: geo.
The study results
concerning dietary intake and social condition of IDP communities reveal a
significant deficit in their diet of such products as meat, fish, vegetables
and excessive consumption of pasta, margarine, and bread. Unbalanced nutrition
in this category of population is caused mainly by their poor socio-economic
condition – low income and lack of health education. The local governments and
relief organizations involved in provision of care and support to the IDPs
should intensify efforts to improve the nutritional status of the entire IDPs
especially for pensioners.
Auth.
10.C13.41. Lipid exchange parameters, high-sensitivity C reactive protein and cytokines in patients with acute
coronary syndrome. /N. Emukhvari, R. Napetvaridze, I.
Mamatsashvili, Kh. Khijakadze, R. Miminoshvili/. Tbilisi State Medical University’s
Collection of Scientific Works. – 2011. – #45. – pp. 39-41. – geo.; abs.: eng.
Recent studies
suggest that immunological and inflammatory processes play a key role in the
development of acute coronary syndrome (ACS), which is confirmed by elevation
in blood of high-sensitive C reactive protein (HS-CRP) and IL-6 levels. Several
studies have demonstrated that these pro-inflammatory factors have prognostic
value in patients with acute coronary syndrome. In the present study the levels
of lipid exchange parameters, high-sensitivity C reactive protein and IL-6 are
investigated and the association between this parameters and ACS severity
evaluated. This trial was carried out at TSMU Hospital. We examined 100
patients with acute coronary syndrome: unstable angina, myocardial infarction
without ST elevation and with ST elevated myocardial infarction. In patients
were investigated cardiovascular disease risk factors: arterial hyperten14
sion, diabetes type 2, dyslipidemia, body mass index, smoking. Hs-CRP and IL-6
levels were determined. Results: serum HS-CRP and IL-6 levels showed a
statistically significant difference between the groups UA, STEMI and NSTEMI.
Also, our study demonstrated a significant elevation of pro-inflammatory
factors in diabetic and dyslipidemic patients with ACS in comparison with non
diabetic and non dyslipidemic patients with ACS. We can presume that the
increased HS-CRP and IL-6 levels in diabetic and dyslipidemic patients with ACS
represent a high inflammatory state and explain the worst prognosis of these patients.
Auth.
10.C13.42. Correlation of gamma-glutamyl transferase concentration with acute coronary syndrome
severity and risk factors. /N. Emukhvari, R. Napetvaridze, I.
Mamatsashvili, Kh. Khijakadze, R. Miminoshvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 41-43. –
geo.; abs.: eng.
GGT an enzyme
responsible for the extra cellular catabolism of antioxidant glutathione may
participate in atherogenesis. Higher serum GGT is associated with development
of cardiovascular disease risk factors. GGT levels also correlate positively
with C-reactive protein. This trial was carried out at TSMU Hospital. We
examined 100 patients with acute coronary syndrome: unstable angina, myocardial
infarction without ST elevation and with ST elevated myocardial infarction. In
patients were investigated cardiovascular disease risk factors: arterial
hypertension, diabetes type 2, dyslipidemia, body mass index, and smoking.
Serum GGT, HS-CRP and lipoprotein levels were determined. Results: serum GGT
and HS-CRP levels were higher in acute coronary syndrome patients compared to
controls. There was also correlation between GGT and HS-CRP, in subgroup
analysis, the higher difference with NSTEMI and STEMI groups than UAP group
proposes a relationship between GGT and severity of acute coronary syndromes.
Auth.
10.C13.43. A-V malformation of pelvic blood vessels and
a combined operative approach. /G. Vardishvili, L. Mukhigulashvili, L.
Kitsmarishvili, E. Aladashvili, T. Ruadze, G. Jinchveladze, M. Kutateladze, K.
Kuntelia/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
46-48. – geo.; abs.: eng.
Congenital arterio
venous malformation of the pelvic blood vessels is one of the rarely
encountered surgical pathologies (pAVM), which is characterized by a high index
of morbidity and mortality rates. A 42 year old female patient was
admitted in the Department of Vascular Surgery at the Aversi Clinic, Tbilisi, Georgia.
Her main complaint was bleeding ulcer from a gigantic pulsatile tumour over the
right gluteal region. Initially she noticed an asymmetrical growth of the right
gluteus 15 years ago. At present the swelling is characterized by hyper
pigmented skin with a trophic ulcer. Irregular rough edges with necrotic ulcer
base were noticed in the upper inner quadrant. Angiography of the pelvic
vessels, played a key role in diagnosis of the disease. Initially, CT angiogram
was done. Vivid malformations were obvious in the right pelvis, comprising the
entire right gluteus.The contrasted Inferior vena cava, in its arterial phase
is also noticed. During the first stage, therapeutic embolisation of the
superior gluteal artery was done with two vascular plugs (AMPLATZER) followed
by embolisation of several other branches of the same artery comprising the
malformations with 12 COILS. Post embolisation, the second CT shows the
disappearance of most of the malformations. During the second stage, open
surgery was performed with excision of the malformation. As a result of which,
approximately 2/3 of right gluteus was actually excised, the vascularisation of
the right gluteus practically disappeared. The gigantic stump of the Right
inner artery after embolisation was obvious. The wound was left open for a
week, for delayed primary closure and later closed with approximating sutures
using local soft tissues. Th healing process was satisfactory without any
obvious complications. It was completed in 6 weeks. The application of combined
endovascular and open surgery have reached the effectiveness of treating high
flow complex A-V malformations.
Auth.
10.C13.44. Shiga toxin-producing E.
coli (STEC) infection and its complications. /E. Vashakidze, T. Megrelishvili, E. Pachkoria,
L. Tevzadze, M. Lashkarashvili/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
48-50. – geo.; abs.: eng.
In 2011, 100
hospitalized patients with hemorrhagic colitis underwent observation at the
Center of Infectious Diseases, Aids and Clinical Immunology Practical-Research
Center. The aim of our research was identification of STEC-strains rate in the
structure of hemorrhagic colitis and revealing of clinical features of those
cases complicated by HUS. STEC –infection was confirmed by the bacteriological,
molecular-biological and serological investigations (PCR an ImmunoCard STAT
methods) (NCDC) in case of 50 patients. The laboratory results indicate that
STEC is circulating in Georgia. There are not only 0157 but non-0157 strains as
well (026,0111, 0103 and etc.) After revealing the shiga toxin molecular
markers in the stool by the use of the new and modern laboratory researches
(PCR and ImmunoCard STAT) the rate of confirmation of the STEC infection has significantly
increased in comparison with the bacteriological researches (41% vs. 19%). STEC
infection was characterized by the severe course of clinical manifestation
comparatively to the hemorrhagic colitis. Complications developed in case of
32% of patients, out of which HUS was revealed more frequently in women with
the history of premorbid background (26%). 5 patients required dialysis. Every
patient was cured by complex etiological- pathogenic therapy and there were no
cases with lethality.
Auth.
10.C13.45. Antioxidant polyphenols from endemic Betula megrelica growing in Georgia. /L. Zardiashvili, M.
Jokhadze, J. Kuchukhidze, V. Mshvildadze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 50-52. –
eng.; abs.: geo.
The methanol extract
showed significant activities in antioxidant assays (IC50 0.28± 0.05
μg/mL) and contained a high level of total phenolic content. The highest
DPPH radical scavenging effect was detected in organic ethyl acetate fraction
(IC50 0.12 ± 0.02 μg/mL) followed by chloroform and n-hexane fractions
(IC50 0.62± 0.02 μg/mL and 0.82± 0.02 μg/mL respectively). Those
activities were higher than that of á -tocopherol (IC50 0.37± 0.03
μg/mL) (Table). When considering the organic fractions of B. megrelica L., the DPPH radical scavenging
capacities increased towards the ethyl acetate fraction with increasing the
polarity of the solvent.
Auth.
10.C13.46. Idiopathic duodenal varix as an extremely rare cause of gastrointestinal bleeding. /G. Tomadze, S. Kemoklidze, A.
Megreladze, G. Azmaiparashvili/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. –
pp. 52-55. – geo.; abs.: eng.
Duodenal varix results from retroperitoneal ectopic
porto-systemic shunt, usually originating from gastroduodenal vein. Although DV
are a rare cause of gastrointestinal bleeding, over 40% mortality rate has been
reported after the initial bleeding episode. In the majority of cases DV is
associated with intrahepatic or extrahepatic portal hypertension and with
esophageal and or cardiac varices. We report a case of a 33 old man with no
medical history of liver disease but with three episodes of upper GI bleeding.
Endoscopy excluded esophageal or cardiac varices. Duodenal varices were identified
with endoscopy and ultrasonography. Abdominal scan in angio regime excluded
liver disease, portal hypertension and revealed isolated duodenal varices.
Bleeding was stopped with conservative treatment. Reported case is interesting
because of several reasons: 1. We described duodenal varices with no evidence
of portal hypertension; 2. Duodenal varices were isolated, without esophageal
or cardiac varices. 3. Bleeding was stopped just with medical means
(conservative treatment, PPI).
Auth.
10.C13.47.
Postoperative hospital-acquired
infections. /B. Iremashvili, Z.
Kheladze, G. Gvasalia, Zv. Kheladze, G. Datuashvili, T. Tabutsadze/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
55-57. – engl.; abs.: geo.
Postoperative
hospital-acquired infections (HAI) – also called nosocomial infections occur
worldwide and affect both developed and resource-poor countries. The following
three factors are the determinants of any of 18 infectious processes: the
infecting organism (in surgical patients, usually bacteria); the environment in
which the infection takes place (the local response); the host defense
mechanisms, which deal systemically with the infectious process. Applying
correct strategies for the prevention of surgical site infection help to reduce
surgical patients’ morbidity, mortality and length of stay, and save cost for
the healthcare institutions.
Auth.
10.C13.48. Retrograde jejuno-jejunal intussusception in
Braun’s anastomozis. A rare postoperative complication. /B. Iremashvili, G. Lobzhanidze, G. Datuashvili, T. Tabutsadze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 57-59. –
geo.; abs.: eng.
Postoperative
enterogastric intussusception following Billroth II gastrectomy is a rare
complication. The presented form of intussusception – the case of invagination
of the efferent loop through a Braun’s side-to-side jejuno-jejunal anastomosis
occurs only in 5% of all the enterogastric intussusceptions. This form of
intussusception is a quite different type of invagination, not only as to its
location but also with respect to its causes and symptoms. Invagination may
occur shortly or late following the operation. This invagination may be acute
and is characterized by a typical symptom combination of pain in abdomen,
haematemesis, high intestinal obstruction and profuse vomiting. A history of
gastric surgery can help in making an accurate diagnosis. An early diagnosis
and urgent surgical intervention are mandatory.
Auth.
10.C13.49.
Prevalence of carbohydrate metabolism
disorders in general practice. /A. Isakadze, M. Noniashvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 59-61. –
geo.; abs.: eng.
The
study of prevalence of carbohydrate metabolism disorders (CHMD) in females. Materials and methods. A
representative sample of 20-59 year-old female population of the city of
Tbilisi was examined using age-specific standardized index, WHO tests and
criteria. CHMD occurred rather frequently. Tolerance to glucose was abnormal in
50% of the examinees. Diabetes mellitus affected 20-29 year-old women 4 times
more frequently than poor glucose tolerance. An opposite trend was observed for
40-49 year-old women. Relevant prophylactic measures are required for female
Tbilisi population.
Auth.
10.C13.50. Sulfonylurea hypoglycemic drugs. /N. Kamkamidze, T.
Chikviladze, B. Chumburidze, T. Otarashvili, M. Jorjikia, H. Ioramashvili/.
Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
61-64. – geo.; abs.: eng.
Diabetes mellitus is
one of the leading medical-social problems of the modern medicine. Index of
diabetes distribution in different countries varies from 2% to 6%. In the last
years, owing to the progress achieved in diabetes management, patents’ lives
have been significantly extended, the life quality improved. However,
diabetes mellitus of any type remains to be a serious disease and together with
observation of healthy life-style and nutrition demands a serious treatment.
The classification of peroral medical preparations of diabetes type II and the
description of pharmacologic groups are presented. Sulfonylurea derivatives,
their generation, structure of I, II and III generation preparations,
synthesis, mechanism of hypoglycemic effect, connection between chemical
structure and pharmacologic effect, methods of qualitative and quantitative
analysis are discussed.
Auth.
10.C13.51. The role of intracellular infections in cases of urethritis in males. /E. Kikacheishvili, M.
Dzagnidze, E. Mirvelashvili, A. Dedabrishvili, E. Sukhishvili, K.
Apridonidze/. Tbilisi State Medical University’s Collection of
Scientific Works. – 2011. – #45. – pp. 64-65. – geo.; abs.: eng.
The
importance of intracellular infections in biocenosis of urethritis in males was
studied. By luminescent-microscopic methods of research was determined that
in 70% of cases mycoplasma and herpes simplex virus took place. Among them –
ureaplasma was identified in 65% of cases, Chlamydia – in 55% and
cytomegalovirus – in 40%. The obtained results indicate the specific weight of
intracellular infection stimulators, especially of mycoplasma and herpes
simplex virus. These stimulators were revealed in low titer (+). The recurrent
research, showed that the percentage of stimulators and their titers by
intensity of luminescence remained to be low. Most likely, intracellular
infections of urethritis in males play a part of associated pathologies.
Though, high indices of their identification point to the necessity of a
complex application of drugs against intracellular infection together with the
ethiotropic therapy of urethritis.
Auth.
10.C13.52. History of laparoscopic surgery development
in Georgia. /M. Kiladze, G. Pipia, D. Elgandashvili, T.
Chartolani/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
66-67. – geo.; abs.: eng.
In Georgia,
laparoscopic surgery has been developed since the 90s of the 20th century. The
first laparoscopic cholecystectomy was performed in 1993. Since 2000, at the
Zurab Tskhakaia Thoraco-abdominal Clinic, nowadays the TSMU thoracic surgery
department, the following 21 laparoscopic surgeries have been performed:
thoracoscopic apical lung resection (1999); pre-peritonitis plastic of groin
hernia, appendectomy, cholecystectomy, correction of acute intestinal
obstruction – synechiolysis (2000); primary and post-surgery plastic of
ventral hernia, liver segmental resection, trancystic drainage of choledochus
(2003); diaphragm esophagus hole hernia plastic (2005); splenectomy, left
adrenalectomy, lymphadenectomies of abdominal cavity and retroperitoneal area;
correction, seromyotomy and fundopexy for esophageal achalasia (2007); right
adrenalectomy, video-assistant right hemicolectomy (2010). To date,
laparoscopic surgery is being successfully applied in Tbilisi and over 30
regional clinics.
Auth.
10.C13.53. Evaluation of polyphenols content and
cytotoxicactivities of buds of Populus deltoides growing in Georgia. /J. Kuchukhidze, M. Jokhadze, T. Murtazashvili, V.
Mshvildadze/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. –
pp. 67-68. – eng.; abs.: geo.
The present study was
undertaken to evaluate the polyphenols content and cytotoxicity activity of
different organic soluble materials of the methanolic extract of P.
deltoides. The amount of total phenol content was found to differ for
different extracts and ranged from 45.76 mg to 310 mg of GAE/g of extract of P.
deltoides. Out of all extracts, the highest phenolic content was found in
MESR (310 mg of GAE/g of extract) followed by DMSF (225.08 mg of GAE/g of
extract). Significant amount of phenolics were also seen in CTSF (111.52 mg of
GAE/g of extract), HSF (48.20 mg of GAE /g of extract) and AQSF (44.25 mg of
GAE /g of extract).
Auth.
10.C13.54. Hygiene evaluation of the labour terms of the
Georgian tobacco production workers. /R.
Kverenchkiladze, A. Chikovani, M. Kvatadze, M. Rizhinashvili, N. Tatalashvili/.
Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
68-70. – geo.; abs.: eng.
Factors of work
conditions and working process have been investigated. The workplace air is
leading factor among occupational factors. Workers are exposed to allergic
tobacco dust, the concentration of which exceeds the maximum permissible level
(MPL) 1,3-5,7 times. Therefore, the working conditions belong to 3.2 and 3.3
class of hazard. In 72.5%, noise level exceeds the MPL. In total, the working
conditions of the studied enterprise belong to 3.1 and 3.2 class of hazard,
according to Hygienic Classification, Only several workplaces belong to 3.3
class of hazard. The main reasons of harmful factors are identified, including:
technology process peculiarities, poor ventilation, inadequate tightness of the
major technological components, etc. Relevant preventive measures were
developed, the practical implementation of which would serve as a basis for
improving the working condition.
Auth.
10.C13.55. Surgical treatment of postoperative gigantic ventral hernias. /N. Lomidze, I. Gelashvili, I. Tsereteli, Z. Manijashvili,
T. Chkhikvadze/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
71-73. – geo.; abs.: eng.
The concept of modern
hernioplasty is the treatment of ventral hernias with tension-free
hernioplastic methods. At the Tbilisi State Medical University, treatment with
polypropylene mesh has been practiced since 2001. During this time 68 patients
have been operated; age – from 30 to 82; men – 26, women- 42. After SWR
classification: MW3-4 R1-52 patients and MW3-4 R2-3 – 16 patients. 11 patients
had 2-3 concomitant diseases: ischemic disease of heart, atherosclerotic
cardiosclerosis, hypertonic disease; diabetes mellitus, obesity II-III degree,
hang tummy. In 52 patients the size of hernial sac varied 10X8cm, in 11
patients 18X15, in 5 patients 25X20cm. For hernioplasty we used polypropylene
meshes of “Ethicon”. All operations were performed under general anesthesia, in
31 patients endothracheal anesthesia was combined with peridural anesthesia. We
used two tension free methods: Sublay method (Rives plasty) was used in 32
patients, onlay method (Chevrel plasty) 24; Sublay+onlay combined method in 12
patients. In postoperative period seroma developed in 1 patient operated with
sublay method, and in 7 patients with onlay method. In all cases seroma was
abolished with puncture under ultrasound guide, puncture was performed 1-3
times. Wound was infected in two patients in whom hernioplasty was performed
with onlay method. In 1990 american surgeons reported new reconstruction of
anterior abdominal wall with Components Separation method [12,13,15]. In our
clinic (2008-2011) 12 patients were operated for gigantic ventral hernia with
Ramirez method. After SWR 23 classification: in nine patients size of the
hernial sac was 15X10cm (MW3R1), in two patients 18X15 (MW4R1), in one patient
25X20cm (MW4R2). In conclusion tension free hernioplasty gives ability to avoid
tension of tissues and increase of intraabdominal pressure while putting organs
inside the stomach, this reduces postoperative complications and reccurence. In
patients operated with onlay method risk of postoperative complications such as
seroma, wound infection, mesh removal is increased than in sublay methods. In
reconstruction of anterior abdominal wall with components separation method has
all characteristics of tension free method, except strengthening of hernial sac
with modern alloplastic material. Thus, while performing gigantic ventral
hernioplasties one of the methods of tension free hernioplasty can be
selectively used.
Auth.
10.C13.56. Cytotoxic steroidal glycosides from Georgian Allium rotundum. /M. Maisashvili, D. Chincharadze, J.
Kuchukhidze, M. Jokhadze/. Tbilisi State Medical University’s Collection of
Scientific Works. – 2011. – #45. – pp. 74-75. – eng.; abs.: geo.
The MTT test was
initially performed with the alkaloids for the determination of the IC50
(a concentration which allows the death of 50% of the treated cells),
establishing the starting point for the next experiments, this procedure had to
be adopted because there are no previous studies with these substances. The
bulbs of dried Allium rotundum were
extracted with 60% EtOH. The advantages of this extractive method are a more
complete extraction of all classes of metabolites and a better fractionation of
metabolites that are obtained partially separated in three early fractions. All
compounds were first assayed and only the active extracts were submitted to
further fractionation. All the fractions from each step of the purification
procedure were assayed and the active ones were further fractionated and
purified using different methods to obtain pure active compounds. Figure show
that compounds [1- 4] possess a relatively similar cytotoxicity against tumor
cell lines, with IC50 values ranging from 2.3±0.08 μM (trilin),
3.9±0.1 μM (dideglucoeruboside), 4.7±0.2 μM (aginoside), 5.9±0.2
μM (eruboside B) for HELA.
Auth.
10.C13.57. Effectiveness of BALF cytology using cytospin-prep method for
evaluation of parenchymal
lung disease. /T. Mamaladze, D. Chkonia, K. Vacharadze, L. Vashakidze, V. Toronjadze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 75-78. –
geo.; abs.: eng.
Diagnostic
difficulties in pulmonary cytology may be compounded by other medical problems,
lack of pertinent information, and the presence of rare tumors. In the current
study, the authors describe and present BALF as particular diagnostic
challenges and diagnostic tool to assist in the accurate diagnosis. The aim of
the study is to evaluate different morphological criteria for the distinction
between inflammatory, neoplastic and granulomatous diseases, demonstrate the
importance of correlating clinical and radiologic findings with the cytologic
findings. This review outlines potential pitfalls in pulmonary cytology and
presents diagnostic tools to assist in the accurate diagnosis.
Auth.
10.C13.58. “New ischemic criteria” and their metabolic determinants. /N. Mamamtavrishvili, N. Sharashidze, R. Abashidze,
A. Kvirkvelia/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
78-81. – geo.; abs.: eng.
Myocardial
dysfunction in patients with ischemic heart disease (IHD) may be caused by
irreversible structural deterioration (necrosis, fibrosis, left ventricular remodeling)
as well as by reversible ischemia of myocardium. Manifestations of reversible
ischemia of cardiomyocytes may be as follows: hibernation, stunning and
syndrome of metabolic adaptation i.e. ischemic preconditioning. The common
feature of these pathological conditions is reduction of myocardial
contractility with preserved viability of cardiomyocytes. In present paper
Pathophysilogical determinants of above mentioned ischemic syndromes based on
experts opinion and clinical research is analyzed. Perspective of its practical
use has been shown. Further in-depth study of ischemic syndromes will
contribute to work out and implement new pharmacological methods for myocardium
protection from ischemic injury.
Auth.
10.C13.59. Methadone – literature overview. /R. Macharadze, P.
Tushurashvili, L. Adeishvili-Andguladze, M. Jokhadze, M. Chichikoshvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 81-85. –
geo.; abs.: eng.
Methadone is a long
acting opioid. It was firs synthesized in 1937 by German scientists
Bockmühl and Ehrhart. In 1942 the commercial synthesizing of the drug
started under the name Amidone. Since 1954 it is known as Methadone. At the end
of the 1940s a full-scale clinical research of Methadone was conducted and its
active use in medicine began. It was used as a morphine substitution in cases
of acute pain. In the 1960s, a program for the treatment of heroine dependency
was developed. The overview contains information of literature sources on
methadone’s pharmacological effect, dosage form, use, chronic use symptoms,
dosage, pharmacodynamics and toxicology.
Auth.
10.C13.60. The development of methadone extraction methods from biological material. /R. Macharadze, P. Tushurashvili,
L. Adeishvili-Andguladze, M. Jokhadze, M. Chichikoshvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 85-87. –
geo.; abs.: eng.
The goal of this
study was the development of isolation methods for methadone from biological
liquids. Two methods, liquid-liquid extraction and solid phase extraction (SPE)
were developed. We have studied the effect of methadone extraction conditions
on the isolation and experimentally found that the best extragent for methadone
is a chlorophorm-isopropanol(9:1) mixture with pH=9. And for the SPE we have
used the vacuum manifold Supelco, with silicagel C-18 solid phase and
dichlormethaneisopropanol- ammonia (72:26:2) mixture as a solvent.
Auth.
10.C13.61. Internal hernias. /A. Megreladze, G. Tomadze, G.
Azmaiparashvili, S. Kemoklidze/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 87-89. – geo.; abs.: eng.
Internal hernia is a
rare disease (less then 1% of all hernia cases) and can cause small-bowel
obstruction in 5-8% and (1,2). These hernias may be either congenital or
acquired. This condition involves herniation of a viscus, usually the small
bowel, through a normal or abnormal aperture within the peritoneal cavity. This
herniation may be persistent or intermittent. Because of the risk of
strangulation of the hernia contents, even small internal hernias are dangerous
and may be lethal. First description of internal hernia belongs to Austrian W.
Treitz, who described the disease in 1857 (9). We present three cases of
internal hernias. All of them underwent emergency operations because of ileus.
In one case the reason of ileus was incarceration of small bowel in the defect
of mesocolon, in second case the reason was right sided paraduodenal hernia and
in the third case – retrocecal internal hernia. We confirm, that internal
hernias are difficult to diagnose with both clinical and imaging studies.
Treatment is just operative. In the vast majority of cases the reason of
operations is ileus. Hernia elements should be separated very carefully, since
they might contain main vessels of vital importance.
Auth.
10.C13.62. Clinical course and epidemiological peculiarities of leptospirosis in Georgia. /T. Megrelishvili, E.
Vashakidze, N. Mamuchishvili T. Khuchua, M. Machankaladze, G. Korkotashvili, M.
Kvitashvili/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
89-91. – geo.; abs.: eng.
The article considers
a recent course of sporadic leptospirosis cases. The severity of clinical
course is determined by polyorganic defeat of constitution in the early stage
of disease. Almost in half of patients the development of acute liver
insufficiency in the first week of disease is observed. The heaviest outcome is
caused by hemorrhagic component and central neural systems defeat.
Auth.
10.C13.63. Interleukin-10 and interleukin-12 level
changes in peripheral blood following antiviral treatment in patients with
chronic hepatitis type C. /I. Mikadze, E. Vashakidze/.
Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
91-93. – geo.; abs.: eng.
The aim of this study
was to clarify the associations among serum cytokines levels and treatment
outcome of pegylated interferon and ribavirin therapy in hepatitis C virus
HCV-infected patients. We quantified serum cytokines before, during, and after
treatment in 30 chronic HCV patients. High levels of IL-12 were associated with
a SRV. Conversely, high baseline IL-10 levels were significantly associated
with a no response to treatment. In multivariate analysis, low IL-10 and high
IL-12 levels were independently associated with a SVR. These 2 cytokine levels
were decreased from baseline levels 12 weeks into treatment and remained low in
patients with a SVR. These results suggest that serum IL-10 and IL-12 levels
are predictive of the response to HCV treatment with pegylated interferon and
ribavirin.
Auth.
10.C13.64. The role of interleukin-10 and interleukin-12
in immunopathogenesis of hcvinfection. /I. Mikadze, E. Vashakidze/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 93-95. – geo.; abs.: eng.
The aim of
investigation was to study cytokine-producing ability of blood immune cells in
type of viral hepatitis C, correlation with the degree of hepatic lesion and
liver cirrhosis. 130 patients were investigated: 20 with acute hepatitis C, 38
with chronic hepatitis C and 72 with cirrhosis: among them 10 with Stage A, 14
with Stage B and 48 with Stage C. We used 30 healthy people as the controls.
The results suggest significant changes of cytokine-producing ability of blood
immune cells type of viral hepatitis C. The results showed that various types
of chronic viral hepatitis C and stages of cirrhosis were associated with
misbalance in production of anti-inflammatory and pro-inflammatory cytokines,
i. e. a significant rise of IL-10 and IL-12 concentration, which were the most
prominent in cases of severe hepatic lesion.
Auth.
10.C13.65. Imaging-guided percutaneal core biopsy of thoracic
lesions. /M.
Mizandari, T. Azrumelashvili, D. Magalashvili, T. Macharashvili, N. Onashvili/.
Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
95-99. – geo.; abs.: eng.
Purpose: Guidance techniques, approaches, possible
complications of Imaging Guided Percutaneal Thoracic Lesion Core Biopsy
(IGPTLCB) are outlined Material and Methods: IGPTLCB was performed to 52 patients using
18 G diameter cutting-aspiration biopsy device or biopsy gun; among them 18
(34,6%) Pulmonary and Pleural lesions, 2 (3,8%) – rib pathology, 32 (61,6%) –
mediastinal limphadenophaty; anterior mediastinum – 10 (19,2%), middle
mediastinum– 9 (17,3%), and 13 (25,0%) posterior mediastinum. Ultrasound for
procedure guidance was used in 23 cases; among them – ‘Free Hand” technique 11
(47,8%), and needle guide technique –12 (52,1%). Among Ultrasound guided Core
Biopsy – anterior mediastinum – 8 (34,7%) cases (in all cases needle passed
extrapleurally), pulmonary and pleural lesions – 13 (56,5%) and rib patholo29
gy – 2 (3,8%) In all cases lesions were located adjacent to the thoracic wall
and were reachable for Ultrasound guided biopsy. CT for guidance was used in 29
cases (when Ultrasound failed to image the “target”). 2(6,9%) patients –
anterior mediastinum lesions, 9(31.0%)- middle mediastinum, 13(44,8%) –
posterior mediastinum and pulmonary/pleural pathology – 5(17,3%). Intercostal
approach, adjacent to the sternum (needle passed extrapleurally) was used in
2(6,9%) anterior mediastinum cases and intercostal area approach ranging from
paravertebral, scapular anterior, middle and posterior axillary line was used
in all other cases. The safe puncture site was selected after vessel imaging by
intravenous contrast injection, using skin markers; biopsy needle was inserted
in axial plane in the depth and by the angle, determined on CT image. In
transpleural cases the first step insertion depth was selected so that the
needle should not penetrate pleura; after this control CT was performed to
document the correct puncture direction and the direction was corrected if
needed. The needle tip, located beyond the “target” and the position of the
deepest insertion was also documented on CT. Results: Adequate tissue material was
received in all cases. The procedure was easily tolerated by patients, the
significant pain, requiring administration of additional analgetics was
mentioned in 4 (7,7%) cases. Ultrasound guided procedures had no complications;
the pneumothorax was documented in 7(13,5%) cases of CT guidance total; among
them only 2 (3,8%) patients required the subsequent treatment. Conclusions: IGPTLCB
is effective and minimally invasive; other techniques for thoracic lesion core
biopsy should be used only in IGPTLCB failure cases. The advantages of
Ultrasound guidance are possibility of real-time imaging, noninvasiveness and
cost-effectiveness; this technique cannot be used if the lesion is not adjacent
to thoracic wall. The advantage of CT guidance is the possibility of visualization
of all thoracic structures. When the adequate guidance technique used, IGPTLCB
is a safe procedure and should be recommended for wide use in selected
patients. Ultrasound should be used for procedure guidance if the ”target” can
be adequately imaged by this technique.
Auth.
10.C13.66. Reflux esophagitis illness rehabilitation
results. /N. Saakashvili, I. Chabashvili/. Tbilisi State Medical University’s
Collection of Scientific Works. – 2011. – #45. – pp. 101-102. – geo.; abs.:
eng.
In order to determine
the therapeutic effect of “Ladzgveria” mineral water, a study under hospital
conditions of 35 patients with reflux esophagitis was carried out. “Ladzgveria”
is low-mineral sulphate-calcium-magnesium-aluminum water. According to the
study, the water has a very high rate of therapeutic effect (88.2%). The
treatment proceeded with clinical and endoscopic image improvements. It has an
anti-inflammatory action, causes improvements of the esophageal sphincter
muscles functions and of internal pressure and acidity regulation of stomach.
For that reason, in the case of reflux esophagitis it is necessary to give
preference to natural hard composite natural mineral waters, especially to
“Ladzgveria”.
Auth.
10.C13.67. The endocrinic effects of the
mineral water “Lashichala” in patients with diabetus melitus type 2. /N. Saakashvili, I. Chabashvili, T. Matsaberidze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 102-103. –
geo.; abs.: eng.
The
therapeutic action of “Lashichala” mineral water on 80 patients with diabetes
mellitus type 2 was studied. Light forms of diabetes were detected in 13.9%
patients and medium in 86.1%. The treatment had a positive effect on diabetic
patients. The higher the level of sugar in blood the better the sugar-level
lowering effect of the water was detected. Since the insulin regulation feature
of “Lashichala” is observed in 10-20 minutes following the water consumption,
we recommend to diabetic people to drink the mineral water 10-20 minutes before
eating. The “Lashichala” mineral water is to be regularly used as a preventive
and therapeutic means to increase chances of avoiding further complications in
diabetic patients.
Auth.
10.C13.68. A rare case of Crohn’s disease. /L. Saginashvili, L. Akhmeteli,
L. Dzneladze, N. Khotenashvili/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 103-105. – geo.; abs.: eng.
Crohn’s disease is a
chronic transmural disease of unknown etiology of the gastro-intestinal tract.
It can affect any area of the GI tract, from the mouth to the anus, but most
commonly affects the lower part of the small intestine and colon. The case of a
38-year-old woman with multiple complications of Crohn’s disease such as
perforation of small intestine, malignant transformation, bowel obstruction,
toxic dilatation of the colon, dermatitis and perianal fistulas is reported.
She underwent several operations and died in 7 years from severe malabsorption
and malnutrition. There is no surgical cure for Crohn’s disease. Surgery is
used primarily for Crohn’s diseases’ complications. Resection of the intestine
does not reduce a possibility of recurrences (50% of patients can expect to
have a recurrence of symptoms within four years of surgery) and it can lead to
the short-bowel syndrome. That is why the main goal is to spare the length of
the intestine and keep it functioning.
Auth.
10.C13.69. Cardiac manifestations of the
Fabry-Anderson-syndrome. /N. Katamadze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 105-107. –
geo.; abs.: eng.
Fabry-Anderson-Syndrome
is the X-linked hereditary sphingolipidoses caused by lysosomal enzyme
alpha-galactosidase A (Ceramidase) deficiency. The disease consists in the
accumulation of the so-called Gb3 and/or GL3 mainly in the cardiac muscle and
kidneys, also in the endothelium of blood vessels, nerve cells and skeletal
muscles. Cardiac manifestations are so standard that making of a reliable
diagnosis is rather complicated and often requires joints effeorts of
cardiologists and genetists. The Fabry-Anderson disease is suspicious if
hypertrophic cardiomyopathy is mixed with the following clinical
manifestations: microalbuminuria, proteinuria and kidney chronic failure of the
unknown etiology; early insult (till 55 of age); angioceratoma (especially in
the lower third of abdomen, groin area and buttocks); arterial hypertension;
acroparesthesias, cold and heat intolerance, frequent burning or freezing;
hypohidrosis; vision and/or audio disorders; loaded anamnesis. Diagnostics is
of crucial importance as it gives the possibility to manage this incurable
disease (with á-Galactosidase A, created by genetic engineering).
Auth.
10.C13.70. Influence of esophageal motility on the
method of cardiospasm’s treatment. /S.
Kemoklidze, G. Tomadze/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 107-109. – geo.; abs.: eng.
The treatment for
cardiospasm (achalasia) is based on the principle that there is an abnormal
sphincter which causes obstruction and that weakening, but not destroying it
completely, improves esophageal emptying even though the underlying pathology
itself cannot be changed. Dilatation of the lower esophagus and its treatment
were described by Willis in 1672. The first successful surgical procedure was
performed by a German surgeon, Ernest Heller, on 14 April 1913 through a
laparotomy and consisted of a double myotomy. The article analyzes 922 cases of
cardiospasm and reveals that motility of esophagus can determine a method of
treatment. According to obtained results, in case of normal esophageal motility
pneumodilatation gives good results. If cardiospasm is with increased motility,
method of choice should be Heller’s myotomy with Nissen’s fundoplacation. When
motility is decreased, preference shoulf be given to Heller’s myotomy with
partial fundoplication.
Auth.
10.C13.71. Treatment of chidren diarrhea in hospitals
and primary health care centers of some regions of Georgia and its comoliance
with WHO’s recommendations. /N. Kavlashvili, M.
Kherkheulidze, K. Sharangia, E. Kandelaki, T. Parulava, I. Shalamberidze/.
Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. –
pp. 109-111. – geo.; abs.: eng.
The article aims at
analyzing compliance of management of acute diarrhea in children with WHO’s
treatment guidelines. A questionnaire-based, cross-sectional survey was
conducted in hospitals and out-patient clinics. 153 questionnaires were
analyzed (26% – hospitals, 74% – out-patient clinics). The majority of respondents
defined diarrhea (69%) and classified severity of dehydration (75%) correctly,
25% mixed up signs of moderate and severe dehydration. 88% uses ORS, only 51%
follow WHO recommendations on fast rehydration. 75% do not know benefits of low
osmolarity ORS. 42% hospital staff uses IV rehydration in case of moderate
dehydration. 94% of respondents use probiotics, 35% – antiemetics, 27% –
antidiarrheals, 45% – antimicrobial drugs, from those 65% uses them during
bloody diarrhea. The majority does not use Zinc. Most respondents advise
continuation of breastfeeding, 32% prescribe lactose free formula. In elder
children restrictions in diet are still in practice. The primary level health
care providers adhere to the WHO recommendations better than hospital doctors.
The results show that WHO recommendations on using ORS and continuation of breastfeeding
are most followed. The problematic issues are the excessive use of antibiotics
and IV fluids, no use of zinc, unnecessary use of antidiarheals and
antiemetics.
Auth.
10.C13.72. Determination of in vitro release of ofloxacin containing medical preparation ”Kafra” and its analogs using a high-performance liquid chromatography technique. /T. Chikviladze, Sh. Tskhadadze, B. Chumburidze, D.
Chincharadze, N. Lashauri, T. Otarashvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 111-113. –
geo.; abs.: eng.
In modern
medicine the growing use of fluoroquinolones conditions their broad
antibacterial spectrum, high capacity of absorption from bowels, comparatively
low toxicity and unique mechanism of action – capacity of inhibition of
DNAhyraze that causes death of a microbe (bactericidal effect).
Fluoroquinolones are distinguished by high penetration capacity in lungs
tissue, tissues of urogenital organs, bones. Ofloxacin is one of the most
experienced and successful preparation of fluoroquinolones group. Purpose of
investigation was – comparison of in vitro outlet of 400 mg tablets of ”Kafra”
containing Ofloxacin, produced by the Georgian pharmaceutical company “GMP” and
its analogs ”Tarivid” and ”Oflohexal” by using the high-performance liquid
chromatography technique. According to the received results, average percentage
release of ”Kafra” is 97.41%, ”Oflohexal” – 99.96% and of ”Tarivid” – 100,47%.
Inclination in comparison with Oflohexal is 2.5 %, as compared with Tarivid –
3.1% (norm ± 5%). ”Kafra” 400 mg tablets containing Ofloxacin produced by the
Georgian pharmaceutical company GMP are characterized by good release quality.
Auth.
10.C13.73.
L type calcium channel-blocker – Amlodipine. /A. Tsertsvadze, T.
Chikviladze, B. Chumburidze, T. Otarashvili, M.
Jorjikia, H. Ioramashvili/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 114-117. –
geo.; abs.: eng.
Calcium
channel blockers are used in cardiology for more than 40 years. Their broad use
in clinical practice is conditioned by high anti-ischemic and antianginal
action. Calcium antagonists are therapeutic agents group, which have similar
action mechanism though they differ by pharmacokinetic parameters, tissular
selectivity, and effect on frequency of heartbeats. By the authors’ group in
the work is presented classification of Calcium blockers. Have been discussed
1,4 Dihydropyridine derivatives and their III generation preparation –
Amlodipine. Has been given a comparative characterization of Amlodipine maleate
and besylate, history of their creation, optical isomers of Amlodipine and
mechanism of their pharmacologic action. Have been presented Amlodipine
synthesis, firm preparations. Have been discussed connection between chemical
structure and pharmacological action, methods of qualitative and quantitative
analysis.
Auth.
10.C13.74.
Characteristics of the distribution of
nervous system diseases in the ammonium nitrate production wiorkers. /M. Tsimakuridze, D. Zurashvili, M. Tsimakuridze, E.
Maisuradze/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 117-120. – geo.; abs.: eng.
The
frequency of spread of nervous system diseases among the workers’ of ammonium
production has been studied. It is established that the diseases caused by
industrial physical hazards (industrial noise, vibration, high temperature and
industrial aerosols) belong to a group of disorders known as work-related
diseases.
Auth.
10.C13.75. Phototherapy and pulse currents in the
treatment of patients with scalp psoriasis. /N. .I. Tsiskarishvili, A. Katsitadze, N. V. Tsiskarishvili/.
Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
120-123. – geo.; abs.: eng.
The search and
implementation of new effective and safe treatment of psoriasis remains an
important issue in dermatology. Recently, in the treatment of this pathology
medium wavelength UVA – narrow-spectrum emission of 310-315 nm with a maximum
emission of 311 nm (UVA -311 nm) has been increasingly used. The effectiveness
of 311 nm wavelength phototherapy of local
hand-foot psoriasis was demonstrated in 2007. At the same time the important
role of stress, which leads to psychological, physiological, and social
disadaptation has been observed in a substantial number of psoriatic patients.
We did not find any data concerning the effectiveness of phototherapy with the
combined use of pulsed currents in treatment of scalp psoriasis for the medical
and psychological corrections of patients. Based on the above-mentioned the aim
of this study was: jointly with physiotherapeutic action on the CNS to
establish the effectiveness of local phototherapy of the scalp psoriasis. To
conduct sessions of phototherapy in patients with scalp psoriasis medium
wavelength (280-320 nm with a maximum emission of 311 nm) UVA-comb has been
used. Physiotherapeutic effects on the CNS were provided by means of
transcranial direct current having certain characteristics and causing in
patients the state of relaxation. The following methodical approach has been
used for treatment of patients: three times a week all of them underwent to 311
nm UVA sessions (Dermalight 80 with a maximum emission of 311nm). Depending on
skin type, the initial dose of UVA exposure was 0.05 -0.15 J/cm2, and depending
on tolerability and efficacy of treatment, one-time increase of the dose of
exposure was 0.05 -0.15 J/cm2. Subsequent course of physiotherapeutic actions
on the CNS consisted of 5-11 sessions with a frequency of 2-3 times per week
for the first 5-6 procedures. Depending on the effectiveness of treatment,
patients received 2-5 courses. 18-65 years old 25 patients (15 men and 10
women) with a1to 5 years duration local scalp psoriasis were followed up.
Complete clinical cure was achieved in 70% of cases (17 patients), significant
improvement – in 20% (5 patients) and improvement – in 10% (2 patients).
Tolerability was good. We have shown a positive effect of this method to the
general course of dermatosis (including a lengthening of re36 missions) and
improvement of the emotional state of patients. After about the 6 months of
treatment the proposed method allows to reduce the number of exacerbations in
1.5 – 2 times, and in case of further treatment by pulse current, provides the
further improvement of results in longer periods.
Auth.
10.C13.76. Etology of cholangiogenic liver abscesses. /I. Tsereteli, N. Lomidze, I. Gelashvili,
Z. Manijashvili/. Tbilisi
State Medical University’s Collection of Scientific Works. – 2011. – #45. – pp.
123-125. – geo.; abs.: eng.
Biliary obstruction
with hypertension and infection is the main cause of liver cholangiogenic
abscesses (81.2%). Development of biliary hypertension in the patients with
transhepatic or other type drainages (30) due to various reasons indicates the
presence of stricture or tumor relapses (83.3%) and is the main cause of
cholangiogenic liver abscesses. Also, frequent episodes of cholangitis and
bacteriocholia in the small group of patients (13, 16.7%) with no biliary
obstruction and hypertension (during bilio-digestive anastomoses and the damage
of Vater papilla sphincter apparatus) are the etiologic factor for
cholangiogenic liver abscesses.
Auth.
10.C13.77. Autoimmune process to collagen I during parodontitis. /L. Jashi, M. Iverieli, N. Abashidze, N.
Gogebashvili, N.Adamia, Kh.
Gogishvili/. Tbilisi State Medical University’s Collection of
Scientific Works. – 2011. – #45. – pp. 125-127. – geo.; abs.: eng.
During generalized
parodontitis the inflammatory process caused by microorganisms helps to the
development of an immune reaction against collagen I. This causes the
destruction of collagen I, sensibilization of adhesive receptors, proliferation
of antigen-reactive lymphocytes, and production of AAT. The intensity of above
mentioned process correlates with the degree of generalization of the process.
That’s why it is important to determine the titers of AAT to collagen I, for
prognoses of relapses during generalized parodontitis, determining the gravity
of process and efficiency of the treatment.
Auth.
10.C13.78. Prevalence of allergic rhinitis and its
severity in adolescent population of Tbilisi. /M. Kherkheulidze, N. Adamia, I. Chkhaidze/. Tbilisi State Medical
University’s Collection of Scientific Works. – 2011. – #45. – pp. 129-132. –
geo.; abs.: eng.
Aim: assessment of
prevalence of allergic rhinitis and its severity in adolescents. Cross
sectional study was conducted in randomly selected groups of adolescents using
special questionnaire and VAS. 880 adolescents aged 14-17 were questioned, VAS
questionnaire were performed only in cases with rhinitis signs. Rhinorhea was
revealed in 14,5%, sneezing in 13,2%, nasal itching in 13,75%, obstruction in
13,1% and non nasal symptoms in 4,4 % cases. Allergic rhinitis symptoms was
significantly higher in boys (p<0,05). Prevalence of allergic rhinitis in
adolescents was 15,6 %, symptoms of allergic rhinitis worsened in spring and
autumn. Average nasal severity score was 4.5 (3.2–5.6). In 73.9% of adolescents
rhinitis symptoms affected quality of life, with strong correlation with the
severity of nasal obstruction. Adolescents with a diagnosis of allergy had
slightly but significantly (P < 0.005) greater VAS levels than those who did
not have a diagnosis of allergy, but have the symptoms. So Prevalence of
allergic rhinitis in adolescent population of Tbilisi is 15,6%. The prevalence
show increasing tendency. The nasal symptoms of rhinitis are significantly
frequent comparing with non nasal symptoms. Nasal obstruction has significantly
higher impact on impairment of sleep, work and social activities then other
nasal and non nasal symptoms.
Auth.
10.C13.79. HBV spread in seafarers. /G. Chkonia, I. Zarnadze, Sh. Zarnadze, L.
Lomtadze, M. Kajrishvili/. Tbilisi State Medical University’s Collection
of Scientific Works. – 2011. – #45. – pp. 132-134. – eng.; abs.: geo.
According to some
research, the number of inactive carriers is much higher than active disease
manifestation in seafarers. The reason of high percentage of inactive carriers
among seafarers is supposedly immunodepresion caused by special conditions of
labor on board. It is well known that virus reactivation among inactive
carriers in case of immunodepression takes place in 20-30% of cases. Taking
into consideration the above, the virus reactivation might be observed in the
inactive carrier seafarers, especially on vessels transporting hazardous goods.
It should be also noted that HBsAg inactive carriers are liable to an increased
epidemiological risk in closed circumstances as board of ship. Statistics show
that the hepatitis B virus is about thirty times more infectious than HIV/AIDS.
Auth.
10.C13.80. Bentonites and
zeolites in medicine. /I. Khurtsilava, E. Buadze, N. Abuladze, N. Pailodze, G. Shvangiradze, R. Bochorishvili/.
Proceedings of the Georgian National Academy of
Sciences. – Chemical Series. – 2012. – vol. 38. – #1. – pp. 122-125. – rus. abs.:
geo., eng.
The article deals
with the application of bentonite and zeolite in medicine. It highlights the
medical field where these minerals are used. Particularly, is considered the
usage of bentonites as compounds of various medical ointments, therapeutic and
prophylactic agents for diaper rash. Bentonites are designed as the boogies
lubricants and catheters to protect the skin from the influence of various
irritants, as an astringent in disorders of the gastrointestinal tract, etc. It
is confirmed that zeolites are widely used in food supplements, in tooth
paste, for medicinal preparations and so on.
Auth.
10.C13.81. Results of radical cystectomy
with Mainz pouch II diversion (single institution experience). /G. Zhvania, Sh. Mshvildadze, G. Managadze, G. Khvadagiani/.
Georgian Medical News. – 2012. – #10(211). – pp. 8-13.
– eng.; abs.:
geo., eng., rus.
Evaluation
of the peri- and postoperative morbidity in patients who underwent radical
cystectomy and sigma-rectum pouch (Mainz pouch II) diversion with curative
intent for invasive bladder cancer. We’ve reviewed 320 patients with invasive
bladder cancer who underwent radical cystectomy with lymphadenectomy and
urinary diversion in our clinic from 1988 to 2011. In 134 (41.9%) patients
Mainz pouch II diversion was performed. The results and complication rates have
been analyzed in these patients. Intraoperaive injury of the rectum
occurred in 2 (1.5%) patient, early complications were found in 40 (29.9%) and
late complications in – 5 (3.7%) patients. Oral alkalization was necessary in
30 (22.4%) cases. 9 (6.7%) patients were hospitalized because of severe acidosis.
Acute pyelonephritis developed in 8 (5.9%) patients. Hydronephrosis developed
in 15 (11.2%) cases. In 7 (5.2%) patients dilatation of upper urinary tract was
bilateral and in 8 (5.9%) – unilateral. In 4 (2.9%) patients stricture of the
ureteral anastomosis was diagnosed. All patients were dry at day time. Only
three (2.2%) patients (2 male and 1 female) needed pads at night time. All of
these three patients were above 70 years old. Two patients underwent surgical
intervention for interintestinal abscess. One patient was operated because of
mechanical bowel obstruction 2 month after surgery. Perioperative mortality was
3.7%. Mainz Pouch II has a low morbidity and mortality rates. This form of
diversion is method of choice for patients in whom the urethra cannot be used.
In selected cases Mainz Pouch II is alternative to other types of continent
diversion.
Auth.
10.C13.82.
Body mass of pregnants as a
risk factor for the development of obstetric complications. /G. Shelia, M. Beshkenadze/.
Georgian Medical News. – 2012. –
#10 (211). – pp. 14-17. – rus.; abs.: geo., eng., rus.
To
elucidate the specific courses of the course of pregnancy and labor in patients
with obesity and inadequate body mass. 280 women (pregnant females aged 17-38)
clinically followed up for pregnancy and labor. The nutritional status was
estimated by the Quetelet index (QI). Complications of pregnancy were more
common in females with insufficient and excessive body mass. There are
gestational diabetes, gestoses, uterine inertia, fetal macrosomy and perinatal
mortality was observed in 67 % of the obese women, total number of spontaneous
abortions was 9 % cases, in females with inadequate body mass. The neonatal
outcomes of pregnancy and complications of labor were better in the pregnant females,
who had normal QI. Thus, insufficient and/or excessive body mass is premorbid
negative background and risk factor for the development of obstetric
complications. Further studies will allow us to get answers to some of the
issues raised and to the management of pregnant women with obesity and low
levels of IQ.
Auth.
10.C13.83. The importance of local and
general factors in development of inflammatory periodontal diseases in children
and adolescents. /T. Shishniashvili,
Z. Tsagareli, N. Khimshiashvili/. Georgian
Medical News. – 2012. – #10 (211). – pp. 18-22. – rus.; abs.: geo., eng.,
rus.
The aim
of the study was to investigate the influence of local and general adverse risk
factors and their role in the development of inflammatory periodontal diseases
in children and adolescents. The study of the dental status among 618 school
children, 9 to 15 years of age has been performed. The obtained results
revealed an ambiguous influence of general and local risk factors on the
development of inflammatory periodontal diseases. Namely, among the general
risk factors the main role is given to hormonal functioning state of juvenile
age (26.5%) – (arrhythmia formation of hormonal activity). Among the local risk
factors inducing inflammatory periodontal diseases at young age, the most
significant are tooth-jaw anomalies (32.2%), especially – dental occlusion
pathology, lips’ bridle attachment anomalies, absence of interdental contacts,
small vestibule of the mouth and so on. Poor oral hygiene, however, is also a
significant factor in all age groups. Definition of the role and importance of
general and local risk factors, taking into consideration patient’s age, is of
great importance in organization of early prevention, giving the possibility to
predict disease possible development, choose most appropriate way to treat the
specific situation, reduce the need of complex treatment and improve treatment
outcomes.
Auth.
10.C13.84.
Multimodal approach to
anesthetic management of long-term operative interventions. /J. Sabirov, V. Sharipova/. Georgian Medical News. – 2012. – #10 (211). –
pp. 28-33. – eng.; abs.: geo.,
eng., rus.
The aim of
our investigation is the evaluation of multi-modal approach to anesthetic
management during general anesthesia in comparison to traditional general
anesthesia. 40 patients being inpatient to RRCEM from 2008 to 2009 have
been investigated. Patients were divided into two groups according to the method
of anesthesia performed: patients (n=20) who underwent multi-modal anesthesia;
patients (n=20) of control group who underwent traditional general anesthesia.
Multi-modal anesthetic management with the force to all parts of pain
pathogenesis promotes the stability of hemodynamic indications in
post-operative period, to minimum tension of homeostasis, less expressed
reaction of sympathoadrenal system due to good neurovegetative protection.
Auth.
10.C13.85. Impaired fasting glycaemia as a risk
factor of coronary heart disease. /S.
Sultanova/. Georgian Medical News. – 2012. –
#10 (211). – pp. 33-37. – rus.; abs.: geo., eng.,
rus.
The aim
of the research was to study the prevalence of early carbohydrate metabolism
disorders and their relationship to coronary heart disease (CHD) risk factors
(RF) in the female population. Epidemiological studies were carried out on 952
women aged 20-59 years. The frequency of impaired fasting glycaemia (IFG) was
4.6 %, and the impaired glucose tolerance (IGT) found only 0.2%. It was found
that the prevalence of CHD in female population is found in 2 times more often
in the presence of IFG than in its absence (40.0% and 23.2%, respectively),
observed in almost all age groups except 20-29 years, where CHD totally absent
in individuals with IFG. The detection rate of the RF of cardiovascular disease
with and without IFG also somewhat different: for example, hypertension,
hypertriglyceridemia, hypercholesterolemia, obesity, is the criterion of the
presence of metabolic syndrome, met with greater frequency in the presence of
IFG.
Auth.
10.C13.86. The prevalence of main risk
factors of CHD in women according to epidemiological and clinical examination. /F. Kasumova/. Georgian Medical News. – 2012. – #10 (211). – pp. 38-42. – rus.; abs.: geo., eng.,
rus.
The aim
of the research was to study the prevalence of main risk factors of coronary
heart disease (CHD) in 200 women aged 30-59 years, according to epidemiological
and clinical examination. It was found that the most common risk factors in
women with CHD are abdominal obesity (AO), body mass index (BMI), triglycerides
(TG), and hypercholesterolemia, with a somewhat lower rate – low physical
activity (LPA), LDL cholesterol , atherogenical index, AH and HDL cholesterol.
All risk factors, except for the LPA occur with greater frequency in the group
of clinical examination compared to epidemiological. In women of fertility age
and menopause all risk factors, except AH recorded almost the same frequency
and only AH was more frequently diagnosed in women in menopause, as in
epidemiological and clinical examination.
Auth.
10.C13.87. Insulin resistance disturbances
in patients with HCV infection. /T.
Bochorishvili, E. Vashakidze/. Georgian Medical
News. – 2012. – #10 (211). – pp. 43-45. – rus.; abs.: geo., eng.,
rus.
The aim of investigation was to study the impact of insulin
resistance in patients with HCV infection. 130 patients were investigated: 20
with acute hepatitis C; 38 with chronic hepatitis C; 72 with cirrhosis. The study
demonstrated that the serum level of C-peptide and Insulin in patients with
liver cirrhosis is higher, than in patients with acute and chronic HCV
infection. This is necessary the monitoring of patients with insulin
resistance, which will contribute to the prevention of complications and can
improve patients’ quality of life.
Auth.
10.C13.88.
Genetic structure of
hepatitis B and C virus population circulating among healthy and high risk of
parenteral contamination individuals in Azerbaijan. /M. Mamedov, A. Dadasheva/. Georgian Medical News. – 2012. – #10 (211). – pp.
46-49. – rus.; abs.: geo., eng., rus.
Considering that information on genetic features of hepatitis B
(HBV) and hepatitis C (HCV) viruses populations, circulating in Azerbaijan remains
limited, authors by means of adequate serological and molecular-genetic methods
defined major genetic parameters of HBV and HCV, identified among blood donors
living in Azerbaijan and persons from groups with high risk of contamination
with HBV and HCV. It was established that population of HBV is presented by
dominating “wild” variant of HBV and mutant variants of HBV,
defective on ability of producing HBeAg, HBcAg and even HBsAg. Thus more than
90% of HBV isolates belonged to D genotype, and less, than 10% – to A genotype.
It is shown that population of HCV is presented by three genotypes: “1”, “2”
and “3”, and the ratio of identification frequencies of these genotypes made
approximately 71%:9%:20%, accordingly.
Auth.
10.C13.89.
Our experience of neurovascular
bund-les surgical treatment interposition at transcondylar and supracondylar
fractures of humeral bone at children. /R. Ahmedov, F. Masharipov, A. Hakimov/.
Georgian Medical News. – 2012. –
#10 (211). – pp. 50-55. – eng.; abs.: geo., eng., rus.
The main aim of the study was to discuss the modern approach to
the diagnoses and surgical treatment of fractures of humerus in children,
associated with compromised neurovascular status and signs of acute ischemia.
The 10 year experience was analyzed, with frequency of complications, varied
from 0.68% to 9% between the groups. The age, sex, mechanism of injury and
neurovascular status were recorded in all 31 patients. Our data suggested that
aggressive surgical approach, when indicated, is corresponding with
well-reduced fracture in proper alignment with a viable and warm functional
extremity in 93.5% of cases.
Auth.
10.C13.90.
Child and adolescent body
mass index data according to WHO new child growth standards in Georgia (Kakheti
Region). /M. Kharabadze,
M. Betaneli, R. Khetsuriani, Z. Rainauli, L. Khutsishvili/. Georgian Medical News. – 2012. – #10(211). – pp.
55-59. – eng.; abs.: geo., eng., rus.
The
studies were carried in Georgia among 6-18 year-old 854 children and
adolescents (417 girls, 437 boys). Measurements of weight, height and chest
circumference were taken by the following standard techniques. The body mass
index (BMI) of each child was computed as weight/height2. The
calculated BMI was compared to the World Health Organization’s BMI – for-age
centiles tables (5-19 years old girls and boys). According the given results
the nutritional status was defined: thinness - 2.6%, overweight - 13%, obesity
- 7.2%. The most 6-18 years old children BMI is adequate to 25th, 50th and 75th
centiles of the World Health Organization standard BMI -for-age percentile
tables. The thinness was revealed only among the children of 6-12 age groups,
with the prevalence among the girls. The high number of thin children is fixed
with both 6 years. Older girls and boys (6.4%).12 years old girls (11.1%), but
the number of underweight children is less than the number of the same age
schoolchildren in Tbilisi. The number of fat
and overweighed children increases within the age and dominates among the boys.
The highest percent of obesity was revealed among the children of both sex at
the age of 11(21.5%) also among the 18 years old boys (17.6%). The data
analysis of the carried studies, allow comparisons with the other studies,
carried out in different countries of the world. The data analysis showed that
underweight, overweight and obesity distribution among the schoolchildren in
Georgia is close to the statistics data of the Eastern and Central European
countries.
Auth.
10.C13.91. Per os given bacteriophages changes
the clinical course of diseases caused by bacterial agents in children. /K. Pagava, G. Metskhvarishvili, I. Korinteli, T. Gongadze/. Georgian Medical News. – 2012. – #10(211). – pp. 60-66. – rus.; abs.: geo., eng.,
rus.
The aim
of the study was to reveal the possible effect of perorally given
bacteriophages on the clinical course of diseases caused by infectious agents
in children. The complex therapy with inclusion of bacteriophages was performed
in 85 children aged from 1 week to 15 years, 36 girls, and 47 boys with
following diagnoses: sepsis, bacterial diarrhea, urinary tract infections,
bacterial infections of upper respiratory ways, bacterial pneumonia. For every
case an appropriate analogous control was matched. Thus this open clinical
trial was carried out according to the Case Control Study design. Clinical and
paraclinical markers specific for different diseases and integrated index of
the gravity of condition were defined by the method of multicriterial analysis,
using fuzzy logic approaches. It was established that by peroral treatment with
commercial bacteriophages the positive trends of investigated parameters had
place. The improvement of the integrated index of gravity was most pronounced.
We suppose that obtaining of more convincing evidences of the clinical value of
bacteriophage therapy the further studies in the more number of patients with
the usage of the generally accepted double blind method should be conducted.
Auth.
10.C13.92. Role of lung affection in
development of catecholamine-induced myocardial injury and its correction
(experimental study). /A.
Semerjyan/. Georgian Medical News. – 2012. – #10(211). – pp.
66-70. – rus.; abs.:
geo., eng., rus.
The present research was focused on studies of adrenaline-induced
morphological and biochemical alterations in rat lungs and myocardium and
prevention of these changes by improvement of alveolar gas exchange. The
results obtained allow concluding that adrenaline-induced myocardial injury is
a result of primary affection of lungs and suppression of alveolar gas exchange
leading to generalized hypoxia and affection of cardiomyocytes. This is
evidenced by prevention of myocardial injury in rats when preliminarily exposed
to the mechanical lung ventilation prior to adrenaline injection.
Auth.
10.C13.93. Impact of thymosin-alpha1 on
reproduction of herpes simplex virus in cell system and on course of acute
experimental infection in mice. /M. Mamedov, S. Safarova, A.
Dadasheva/. Georgian Medical News. – 2012. – #10(211). – pp.
71-75. – rus.; abs.:
geo., eng., rus.
The
article contains results of laboratory and experimental investigation carried
out for comparative estimation of antiviral activity of thymosin-alpha1 (Ta1) against
herpes simplex virus (HSV). It was demonstrated that administration of
tymosin-alpha1 in cultivated in vitro cellular system had been inoculated with
HSV provided inhibition of HSV reproduction and defense of cells of HSV
cytopathogenic action. Moreover Ta1 ability to inhibit HSV reproduction in cell
was comparable with the same ability of human alpha-interferon. Besides it was
demonstrated that Ta1 parenteral administration to mice infected with HSV
leaded to reduce of mice morbidity percent and prolonged of their survival
rate. Ta1 ability to depress experimental viral infection development was
higher than same ability of acyclovir.
Auth.
10.C13.94.
Bio-archaeological research
development in Georgia: steps, peculiarities, directions. /R. Shengelia, L.
Bitadze, Sh. Laliashvili/. Georgian
Medical News. – 2012. – #10(211). – pp. 75-81. – eng.; abs.:
geo., eng.,
rus.
In Georgia, bio-archeology in its broad sense started developing
with the research in paleo-anthropology and paleopathology. Paleoanthropology
initially developed in line with
archaeology. The study of biomaterial through the angle of paleopathology
started in 1956. Later works were devoted to ethnogenesis, comparative
anthropology, spreading physiological stresses and other issues. In recent
years newly discovered rich archeological materials and introduction of the
modern methods of research have outlined new prospects, and our decision is to
put them in to action. From our point of view the research methods and aims of
bio-archaeology include: 1. morphological study of biomaterial on the
macroscopic level. 2. The research through chemical methods which gives us an
opportunity to outline many parameters of life such as eating habits, the
aspects of interrelation with the environment and metabolic processes through
the spectrum analysis of main ingredients of material. The important part of
this direction is the researching of stable isotopes which gives us additional
and strong arguments. 3. Genetic research answers the following important
questions: biomaterial’s variety; racial and ethnic origin; time and place of
migration processes traced on ethnogenesis; hereditary disease history
(dating, the origin of the diseases, epidemics and other); human and animal
genome evolution and mutational changes; the role of environment (food,
ecosystems) in genome changes. The results of the above mentioned research
allow answering a lot of important historical and biomedical issues. From
these, we have started the comparative analyses of the genographic data of
Georgia, taking notes of the genetic changes which, in our opinion, are caused
by the radical and stable changes of eating habits produced about 450-500 years
ago, which probably resulted proportional imbalance of the diseases that
appeared in the same period.
Auth.
10.C13.95. Herbal infusions for treatment of epilepsy (review). /H. Kuprashvili/. Georgian Medical News.– 2012. –
#10(211). – pp. 82-85. – rus.; abs.: geo., eng., rus.
On the basis of literature data the possibility of using herbal
infusions to treat epilepsy was studied and medical properties and the chemical
composition of herbal infusions described in the literature were examined. The
most often used plants were selected. On the basis on these data the optimal
option of herbal infusion was composed. The effect of herbal infusion was
studied on 60 rats. It is shown that in animals treated with herbal infusions,
compared with the control group, decreased tonic traction, duration of seizures
decreased by 71%, while their occurrence by 60% and animal survival increased
by 67%. All these data indicate the potential effectiveness of herbal
infusions.
Auth.
D1. Organization and Management
10.D1.1. Land management system. /M.
Khutsishvili/.
Agrarian-economic Science and Technologies. – 2012. – #3. – pp. 27-29. – geo.; abs.: eng.
The priority of agriculture on land is conditioned by its economic role.
Conservation of arable land, its fertility improvement and protection is one of
the most important principles of land management. The land management is effective when its structure and functions fit
the particular political and socio-economic situation, fully reflect the
ongoing complex processes, and reveal the ability to overcome a crisis and
adapt to new conditions. The objective assessment criteria of economic events
will promote the strengthening of organizational-economic relations.
Auth.
10.D1.2. Cross-cultural management in Georgia in the
context of globalization. /B. Ramishvili/. Metsniereba da
Tskhovreba. – 2012. – #1(5). – pp. 27-31. – geo.; abs.: geo., eng., rus.
The current cross-cultural relations in the context of globalization represent a significant issue for development of modern international organizations, because of which an adjusted training system of managerial personnel of transnational companies, which is based on relevant scientific research has a long history of operation in advanced countries of the world. Georgia, as most developing countries, lacks such scientific resources and therefore the relevant educational system. Therefore, the creation of such a system to ensure international collaboration of local individuals and organizations is a must. The barriers to cross-cultural relations that may arise in transnational companies and the recommendations for overcoming them are discussed in detail.
Auth.
10.D1.3. On analytical solution
of a multicriterion problem of stock of goods planning /D. Sikharulidze/. Proceedings of the A.
Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 60-65. –
geo.; abs.:
geo., eng., rus.
One of the inventory management problems, implying that the volume of
consignment, its costs and storage expenditures are constant, while the sale
price of each consignment is different, is considered. The problem is
formulated as a problem with two nonlinear criteria with linear constraints. An
analytical solution is given in the case of two types of goods.
Auth.
10.D1.4. Radiation border monitoring
system in Georgia. /G. Nabakhtiani, A. Gigineishvili, L. Chkhartishvili, Sh. Dekanosidze/. Nano Studies. – 2012. – # 6. – pp. 61-64. – eng.
The main organizational
principles of administrative and technical subsystems of the radiation border
monitoring in Georgia are described.
Auth.
D2. Environmental Protection.
Ecology
10.D2.1. The main principles of environment protection
from pesticide contamination in Georgia. /G. Aleksidze, E. Orjonikidze/.
Bulletin of the Academy of Agricultural Sciences of Georgia. – 2012. – #30. – pp. 84–86. – geo.; abs.: geo., eng., rus.
The questions of safe
use of pesticides for protection of agricultural crops from harmful organisms
are discussed. The perspectives and methods of reducing contamination of the
environment from pesticides are mapped out. The main principles of integrated
pest management system are worked out.
Auth.
10.D2.2. Assessments of ecogeochemistry of soils
within the Tbilisi-Bolnisi highway strip (Georgia). /U. Zviadadze, N. Gachechiladze/. Mining Journal. – 2012. – #1(28). – pp. 8-12.
– geo.; abs.: rus., eng.
It is known that the main source of ingress
and accumulation of toxic metals in human organism is the systematic
consumption of farm products growing on the soils polluted by these metals.
Accumulation of toxicants in the soils is connected with various anthropogenic
factors. Among these factors within the space situated out of area of large
settlements one of the powerful factors are the motor roads with heavy traffic.
Within the stripe adjacent to the highway the atmospheric air is saturated by
metal-containing exhaust gases. The toxicants’ ingress from the air enters the
soil as an open geochemical system of landscape. The article considers the said
issue by a typical example of Tbilisi-Bolnisi highway. The peculiarities of
allocation of toxic metals within the area adjacent to the highway strip are
studied and the causes of their more intensive accumulation in certain sites
are identified.
Auth.
10.D2.3. On some problems of the use of asbestos and
asbestos products. /A. Bezhanishvili, N. Bochorishvili,
A. Grdzelidze/. Mining
Journal. – 2012. – #1(28). – pp. 87-90. – geo.; abs.: rus., eng.
The article deals with a declaration made by
some international organizations, which request adoption of national bans on
the use of asbestos and asbestos products. Asbestos is carcinogenic material,
provoking a lot of occupational diseases, which is the main argument for
banning its use. It was ascertained that indemnity expenses for treatment of
occupational diseases provoked by asbestos are very high. In spite of this, the
use of asbestos is banned only in 40 countries. Alternative recommendations on
the replacement of asbestos by other materials are proposed.
Auth.
10.D2.4.
Measures to purify the industrial
sewage of Chiatura manganese enterprises flowing in the River Kvirila from
radioactive substances. /N. Kiknadze, N. Mekvabishvili/. Mining Journal. – 2012.
– #1(28). – pp. 91-92. – geo.; abs.: rus., eng.
The work considers the
issues of purification of industrial sewage of Chiatura manganese enterprises flowing
into the River Kvirila from radioactive substances, particularly radium and
radon; monthly monitor analysis of Ra226 and Rn222
changeability from October 2010 to September 2011 inclusive is given. As a
result of observations, it is established that the amount of radioactive substances
in the industrial sewage of Chiatura manganese enterprises flowing in the
River Kvirila reduced which can be explained by an increase in precipitations.
At the same time, a new technique to remove Ra226 from the industrial
sewage is proposed, namely the reagent based, wherein the Askana clay
activated with nitric acid is used as a filter.
Auth.
10.D2.5. Tusheti
Protected Areas: evaluation
of natural regeneration processes in
pine stands. /T. Kandelaki,
I. Turashvili/. Agrarian-economic Science and Technologies. – 2012. – #2. – pp. 89-98. –
geo.; abs.:
eng.
Natural and cultural heritage preservation –
protection is the main strategy of Tusheti Protected Areas. Protection and
development of Pine Stands is the key point in this direction, which occupies a
dominant place in the protected area and plays an essential role in its
sustainable development. Accordingly, it is of urgency to study natural
regeneration in pine stands that enables to estimate the progress of this
process and factors influencing it. It should be noted that natural
regeneration is directly dependent on the environmental conditions and the
research has been carried out in all types of stands; pure and mixed pine
groves, at different altitudes from sea level, of different slope gradient, of
different exposure conditions, natural windows, basal and open areas, also in
the stands of various frequency and age.
Auth.
10.D2.6. Urbanization and eco-geographical problems of
big cities. /Sh. Kharziani-Kadzanaia/. Metsniereba daTeknologiebi. – 2011. – #4-6. –
pp. 49-52. – geo.; abs.: eng., rus.
The article considers the problems of global urbanization and
methods to avoid the expected ecological crisis. Special attention is given to
such acute problems as the water and
atmospheric air pollution. A list of the most harmful factors is compiled.
Auth.
10.D2.7. Protection
of the Black Sea coastal zone from abrasive processes against a background of
global warming by controlling the hydrological regime of rivers (by the
example of the River Rioni). /R. Diakonidze, L.
Tsulukidze, T. Supatashvili/. Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 37-41. – geo.; abs.: geo., eng., rus.
The paper describes a brief history of the
boundary changes of the Black Sea for the last 120-140 thousand years. Against
a background of global warming of our planet, current problems of formation of
the Black Sea coastal zone are assessed and one of the best opportunities for
the protection against abrasive processes by controlling the solid runoff of
rivers is proposed.
Auth.
10.D2.8. Influence of contemporary geotechnical processes
on ecosystems within the TRACECA zone and their control. /Z.
Varazashvili, G. Chakhaya, S. Modebadze, I. Khubulava/. Collected Papers of
Institute of Water Management. – 2011. – #3. – pp.
46-52. – geo.; abs.: geo., eng., rus.
The article concerns the
modern geotechnical processes in the construction area and the impact of
international transport corridor TRACECA passing through the territory of South
Georgia, the causes of their origin, propagation conditions and development.
The negative impact of these processes on the ecosystem of the region is
described. The purpose of the article is to initiate and facilitate the
creation of an inventory and monitoring of geotechnical processes and the
development of their control strategy.
Auth.
10.D2.9. Measures against rockslides in road and rail transport corridors
of Georgia. /I. Iremashvili, I.
Pirtskhalaishvili/. Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 104-109. – geo.; abs.: geo., eng.,
rus.
The paper considers the options
for the implementation of measures against rockslides on the slopes of the
Eurasian road and rail transport corridor of Georgia. It is well known that the
erosion of earth surfaces can be considered as permanent geological processes,
and therefore, the stabilization of such surfaces is a very important task. For
our conditions, the most reliable, durable, cheap and best option is to
strengthen the eroded slopes with shotcrete attached to metal grids. The
article describes the results, which revealed that the use of this kind of
protective coating is very effective and appropriate because of its simplicity
and the complexity of technical operations, technical and economic availability
and high mobility.
Auth.
10.D2.10.
The fundamental theoretical principles to determine
some characteristics of reliability of the operative sheeting. /L. Itriashvili, K. Dadiani, Kh. Kiknadze/.
Collected Papers of Institute of Water Management. –
2011. – #3. – pp. 110-113. – rus.; abs.: geo., eng., rus.
The article describes the
fundamental theoretical principles needed to determine the dynamic
characteristics of flow and its impact on the embankments, the results of
experimental studies as well as the practical application of flexible
protective coating.
Auth.
10.D2.11.
Erosion-preventive stabilization of earth slopes using new stabilizer. /L. Itriashvili, E. Khosroshvili, N.
Nibladze/. Collected Papers of Institute of Water Management. – 2011. – #3. – pp.114-119. – geo.; abs.: geo.,eng., rus.
The paper includes the data about
the impact of soil improving poly-complex on the equivalent adhesion, water
resistance, water and wind erosion, moisture content and germination of grass
soils. A conclusion about the effectiveness of poly-complex for the protection
of earth slopes against erosion is made.
Auth.
10.D2.12.
Aggregation of heavy overwet Kolkhetian soils using poly-complex CBSS. /L.
Maisaia, M. Shavlakadze, S. Kupreishvili, F. Lordkipanidze/. Collected
Papers of Institute of Water Management. – 2011. –
#3. – pp. 150-154. – rus.; abs.: geo., eng., rus.
The paper describes the results of investigations
regarding the aggregation of heavy overwet Kolkhetian soils using poly-complex
CBSS. We present new qualitative characteristics of soils acquired as a result
of their aggregation. It is shown that the soils aggregated with CBSS increase
the fertility of corn by 90%.
Auth.
10.D2.13.
Research of anaerobic boil process of sewage water sediment. /A. Mekhraliev, M. Muradov, G. Sadikhov/. Collected
Papers of Institute of Water Management. –
2011. – # 3. – pp. 167-170 – rus., abs.: geo., eng., rus.
The anaerobic boil process of sewage water sediment was studied in
thermophile regime on laboratory equipment. On the basis of food industry
liquid wastes was manufactured an accelerator of the process. Experimental
studies carried out with accelerator-biocatalyzer established an optimal
amount to be added in reactive zone. Besides, it was established that biocatalyzer
accelerates 2,5 times the above process. A new design of bioreactor was tested
on the pilot equipment with total volume of 20m3. It should be
mentioned that the results of pilot equipment test results confirmed the
results obtained in laboratory conditions.
Auth.
10.D2.14.
Hydraulic models of formation, movement along the watercourse and stop on talus
train of hyper-concentrated mudflow. /O. Natishvili, V. Tevzadze/.
Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 175-179.
– geo.; abs.: geo., eng., rus.
A hydraulic model of formation in the erosion breakout of
movement and stopping on the talus train of hyper-concentrated mudflows
taking into account their non-Newtonian (flow) characteristics is proposed.
The model allows to effectively arrange mud dams within the boundaries of the
watercourse and the talus train for the purpose of ensuring safety for the
infrastructure located nearby.
Auth.
10.D2.15.
New technology for arranging a slope erosion-preventive trench. N.
Samkharadze, T. Janelidze/. Collected Papers of Institute of Water
Management. – 2011. – #3. – pp. 185-187. – geo.; abs.: geo., eng., rus.
The paper gives a brief description of the existing tools
and technologies for arranging erosion-preventive trenches on slopes to provide
energy dissipation of the surface runoff and to reduce erosion process during
intensive rains. Currently, the said trenches are cut by trenchers, which are
unstable, fractured on their slopes and increase thus erosion processes; the working
bodies are structurally complex, expensive and low-productive. A new
technology and design of a roller mechanism, which provides the cutting of
trenches using rolling and indentation is proposed. The so cut trenches are
stable, crack-free, functional during a year, and significantly decrease the
erosion processes. The rolling trencher is simple in design, highly productive
and cost-effective.
Auth.
10.D2.16.
Ecological risk assessment of an area. /L. Purtseladze/.
Collected Papers of Institute of Water Management. –
2011. – #3. – pp. 188-192. – geo.; abs.: geo., eng., rus.
The paper discusses the necessity of assessment of the
duration of area maintenance and gives the risk assessment sequence in case of
damage or malfunction. The frequency of ecological risk is assessed; the power
assessment for the estimated parameter of the environmental risk of the area is
defined; a biased and unbiased estimates using mathematical expectation are
given. It is shown that for practical purposes it is not necessary to find true
value of environmental risk for the anthropogenic area. It is enough to know
the bound of confidence probability within its own limits. The calculation of
bounds is carried out with the help of the Student’s distribution.
Auth.
10.D2.17.
The stability of the offshore strip at the confluence of the Rioni River
and the sea through the city wastewater pipe. /I. Kadaria/. Collected Papers of Institute of Water Management. – 2011. – #3. – pp. 193-197. – geo.; abs.: geo., eng.,
rus.
This article discusses the
particular case of the coastal strip stability at the place where the
debris-bearing waters of the River Rioni flow into the sea through the town
wastewater pipe. Recommendations on the improvement of the shore protection in
the coastal area through regulation of the wastewater discharge by the branch
duct’s headwork are given.
Auth.
10.D2.18.
Modern measures to control soil erosion on mountain slopes.
/G. Chakhaya, Z. Varazashvili, R.
Diakonidze, L. Tsulukidze, I. Khubulava, T. Supatashvili/.
Collected Papers of Institute of Water Management. –
2011. – #3. – pp. 204-208. – geo.; abs.: geo., eng., rus.
The paper considers modern locally developed and
internationally tested measures to control soil erosions. The possibilities of
each of them to avoid soil erosion are discussed. For the conditions of
Georgia, a cheap, easily fabricated and mounted geo-mat “Nesfile-2”, meeting
all modern standards, has been developed. It can be effectively used for
protecting eroded soils and restoring local biodiversity, and respectively,
maintaining the ecological balance.
Auth.
10.D2.19.
Mathematical simulation of channel flow using the variational method. /G.
Chitishvili, G. Dokhnadze, L. Kekelishvili/. Collected Papers of Institute
of Water Management. – 2011. – #3. – pp. 209-211. –
geo.; abs.: geo., eng., rus.
The paper describes the study of forms of the effective
cross-section section and other characteristics of uniform, steady, turbulent
channel flow using the method of calculus of variations.
Auth.
10.D2.20. Study of the processes of
filtration of the mill plant effluents using grainy filter media. /V. Kvantidze/. Proceedings of the Georgian National Academy of
Sciences. Chemical Series. – 2012. – vol. 38. – #1. – pp.
104-106. – rus. abs.: geo., eng.
It is experimentally proved that upon application of
grainy filter media for treating mill plant effluents the most effective and
economical results are ensured by using crushed ceramsite (expanded clay
aggregate) and construction slag. The advantages of the construction slag are
shown by the charging height -1 meter and by the size of granules 0.5…4/0 mm,
that provides the effectiveness of treatment by 95–97%, which meets the
requirements of the treated water to be discharged into the drainage system.
Auth.
10.D2.21. Service staff protection from
radium and radon action. /N. Kiknadze, N. Mekvabishvili/.
Hydroengineering. – 2012. – #1-2(11-12). – pp. 46-48. – geo.; abs.: geo., eng., rus.
The problems
of ecological conditions in mining production are considered. The composition
of sewage waters flowing out of manganese deposits is studied, the
possibilities of water purification, as well as the problems of water hardness
disposal of radioactive substances are discussed.
Auth.
10.D2.22. Water, atmosphere and climate.
/R. Kldiashvili, D. Bibileishvili/. Hydroengineering. – 2012. – #1-2(11-12). – pp. 56-59. – geo.; abs.:
geo., eng., rus.
The
distribution and the role of water in the formation of climate, atmosphere and
weather, in space study, in the origin of life, in the growth and development
of living organisms, in preserving of strength and health of human beings, in
agriculture, medicine, religious rites are discussed. The expressions associated
with water which are widely found in the Georgian language and presented.
Auth.
10.D2.23. Diagnostics of an ecological system in terms of balance and the causal
analysis of its possible disturbances. /V.
Radzievski, N. Jaliabova, M. Mikeladze, D. Radzievski/. Proceedings of the A.
Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 226-232. -
geo.; abs.: geo.,
eng., rus.
The problem of diagnostics
of the ecological system state in terms of balance is being solved. The causes and
sources of the observable disturbances are identified using an analysis of
causes. The solution of the problem of diagnostics and the causal analysis
enable to avoid the ecological system imbalance or to promote to its
restoration. Examples of the actual problem solutions are given.
Auth.
10.D2.24. Program to identify the
environmental pollution degree its individual components - air, water and soil.
/D.
Radzievski/. Proceedings of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 233-238. -
rus.; abs.: geo.,
eng., rus.
The
principle of program building by using databases is considered. A description
of the environmental pollution identification and measurement program is given.
The designation of the administration and the main module of the program, as
well as how to work with it are explained.
Auth.
D4. Other Intersectoral Problems
10.D4.1. Computer program for calculation of seismically safe
charge mass of industrial explosions and distances. /R.
Mikhelson, S. Khomeriki, D. Khomeriki, A. Khvadagiani, D. Supatashvili/. Mining Journal. – 2012. – #1(28). – pp. 73-77. – geo.;
abs.: rus., eng.
The calculation methods of
seismically safe charge masses of explosions and distances from the explosion epicentre
to the protected sites are presented. The above methods are taken as a basis
for developing a relevant computer program algorithm. The forms of chunk and
operation of the program are presented.
Auth.
10.D4.2. Mathematical modeling of a catastrophic wave
caused by possible failure of the Zonkari Dam. /T. Gvelesiani, G. Berdzenashvili/. Collected
Papers of
This paper includes the
essential results of the project financed by the British Petroleum Co. The
wave, which can originate as a result of Zonkari high (71 m) earth
dam (at the River Patara Liakhvi) failure, is considered. Graphical
dependencies of the wave parameters on time or longitudinal coordinates are
obtained on the basis of new software developed by the authors. Using the
obtained data, we can forecast the impact of the mentioned wave on the main oil
pipeline (Baku-Geyhan), which crosses the River Didi Liakhvi, near Gori.
Auth.
10.D4.3.
The modeling of wave interaction with coastal slopes stabilized by ripraps and
shaped massifs. /I.
Iordanishvili, M. Vartanov, K. Iordanishvili, I. Iremashvili,
The
paper includes information on the methods developed previously for the
modeling of wave processes up to the inshore. Taking
into account large-scale changes, an analysis of the hydrodynamic
characteristics: maximum wave pressure, height of weight setup and diameter of
riprap on the slope for the inshore (setup and ingress of waves in the area of
slopes) is proposed. The calculations are implemented on the basis of
hydrodynamic investigations in the wave testers of various dimensions.
Auth.
10.D4.4. Mathematical model of discontinuous wave
spreading after its spilling on bank slope (setup and rollback). /R. Kiladze/.
Hydroengineering. – 2012. – #1-2(11-12).
– pp. 60-69. – rus.; abs.: geo., eng., rus.
The phenomenon of spilling of discontinuous
wave on a bank slope, its spreading and formation of forward and backward wave
flows are considered. On the basis of definite schematization of this
phenomenon and the respective system of differential equations the
approximation of analytical solution is achieved to describe the non-steady
flow of water in this zone. Hence follows a series of formulas determining the
main hydraulic characteristics of setup and rollback of wave.
Auth.
10.D4.5. An Intelligence system of medical diagnosis and
treatment
of choice. /V. Radzievski,
The method of the computerized
diagnostics of the state of complex systems based on the diagnosed system
knowledge is offered. Such knowledge includes the descriptions of possible
breaks of components of the system, and the information concerning the
correlations existing among the breaks. The problem of the decisions automation
directed to the removal of the breaks under the criteria given and estimated by
experts is solved. The problem solution is illustrated by the example of
medicine diagnostics, and the choice of treatment mode. The most probable
diagnose algorithm at the given level of consideration is worked out. The
method of the choice of medical products prescribed to the given disease on the
basis of multiple criteria is offered.
Auth.
10.D4.6. Differentiation of diseases by means of an intelligence system. /N. Jaliabova, V.
Radzievski/. Proceedings of the A. Eliashvili Institute of Control Systems. – 2012. – #16. – pp. 219-225. – geo.; abs.: geo., eng., rus.
An intelligence
system to differentiate acute forms of stomach diseases is constructed. The
problem of automation of a choice of decisions is solved. At the given level of
consideration, the most probable diagnose algorithm is developed. The system
works in the interactive mode. Interaction with is conducted in the natural
language, on which basis the system identifies and diagnoses the disease.
Auth.
10.D4.7. Use of mathematical methods in medical ecology. /N. Poporadze, D. Abzianidze, M. Dvali, T. Meskhishvili/. Proceedings of
The paper gives a complete description of
using mathematical methods for analysis of medical ecology processes.
Auth.
10.D4.8. Probabilistic modeling of formation of final
decisions in social groups. /R. Kakubava,
The work considers the problems of influence
and authority in social groups. Particularly, the process of formation of the
final decisions within multi-member social group and aspects of evolution of
this process. On the basis of Markov chains and graph theory the following
problems are researched: 1) How does each member of the group make the
sustainable final decision? 2) In what conditions does the whole group or its
distinct subgroup make the sustainable final decision? 3) What is the
relationship between the group’s final decision (if it’s possible) and the
initial considerations of members of the group?
Auth.
10.D4.9. Business
engineering in the health care system and prevention of chronic diseases. /M.
Chikava/.
Business-Engineering. – 2012. – #4. – pp. 167-175. – geo.; abs.: eng.
Business Engineering, as process
oriented management, is recommended to be implemented in the health care system management. Business
Engineering includes: Business Process Reengineering (BPR) and Continuous
Improvement (CI). The patient's
satisfaction with the process is the main criteria for assessing the quality of
any process performance in the health care system. The
innovative modernization of the public health system in our country needs to
be carried through reengineering. Though change is painful, the successful
transformation of medicine in the USA at the turn of the last century shows
that it is possible. The
chronic disease prevention and preventive treatment reengineering are important components of
the health care reengineering. They must be based on the business process model, for which it is necessary to develop and redesign
prevention programmes. Digestive disorders prevention models for adolescents are developed by us.
The list of measures to be conducted is presented in hierarchical sequence. The
trends of risk factors modification and homeopathic preventive treatment
method described by us are
recommended to be used for development of
digestive disorders prevention programmes and business models. It will create the scientific basis for reengineering
prevention of chronic diseases. Its
practical implementation must be accompanied by the continuous improvement. BPR and CI together will allow to integrate prevention in health care management based on Business Engineering principles.
Auth.
10.D4.10.
Applying social science research methods
for technology assessment of nanotecnologies. /T. Chachibaia, E. Raupp/. Nano
Studies. – 2012. – # 5. – pp. 11-26. – eng.
Research into nanotechnology’s
impact on any societal implication, as ethical, environmental, economic, legal
aspects, must try to keep pace with the technological progress that has been
made. Otherwise, the technological progress will slow down. This will be one
of the first times in history that social scientists have such a participatory
role in nanotechnology’s development. Technology and society evolve together.
No one can fully understand the long-term implications of such advances,
emerging under the heading of nanotechnology – the art and science of
building complex, practical devices with atomic precision, with components measured
in nanometers, billionths of a meter. Certain cultural values, including
strong hopes and deep fears, are likely to shape public understanding of
nanotechnology. Nanophilic hopes and nanophobic fears will not wait until
after scientific work is completed, assessed and disseminated. The tangible
results of nanotech will be selectively appreciated and interpreted in accordance
with those hopes and fears. Nanotechnology must be developed in a safe and
responsible manner. Ethical principles must be adhered to and potential health,
safety or environmental risks scientifically studied, also in order to prepare
for possible regulation. Societal impacts need to be examined and taken into
account. Dialogue with the public is essential to focus attention on issues of
real concern rather than “science fiction” scenarios.
Auth.