volume 164 number 1 Jule-August
Member of the Academy L. Zhizhiashvili
On Multidimensional Schwarz Operator
Presented May 23, 2000
Abstract. The integral properties of the majorant of multidimensional Schwarz operator is established.
Key words: multidimensional Schwarz operator, integral properties of the majorant.
Corr. Member of the Academy N. Vakhania, V. Kvaratskhelia
Convergence of Sylvester Series in Banach Spaces lp, 1 Ј p < Ґ
Presented July 18, 2000
Abstract. In Banach spaces lp for p і 2 a series of a specific type, Sylvester series, converges only if it converges unconditionally. For 1 Ј p < 2 there exist Sylvester series that converge but fail to converge unconditionally.
Key words:Sylvester matrix, Sylvester series, unconditional convergence
Some Inequalities Related with Hadamard and Sylvester Matrices
Presented by Corr. Member of the Academy N. Vakhania, October 9, 2000
Abstract. The numerical characteristics for Hadamard and Sylvester matrices are introduced and some estimates for the maximum of partial sums related to these matrices are proved.
Key words: Hadamard matrix, Sylvester matrix, Banach space, subsymmetric basis, type p.
On Embedded Markovian Processes with the Supplementary Variable
Presented by Corr. Member of the Academy R.Bantsuri, January 9, 2001
Abstract. In this work, a generalized mathematical scheme of random processes, with the help of which it is possible to describe a wide range of real queueing systems (data transmitting networks, computer systems, etc.) and to solve some problems of the reliability theory, is offered. The necessity in developing such a scheme has arisen in connection with an increasing sophistication of real automated control systems when the available methods do not cover all problem statements that interest a practical worker.
So, it is necessary to develop an analytical apparatus capable to consider a great variety of active factors in order to create the models which fit the original adequately, i.e. are maximally approximated to the original.
Keywords: random processes, queue, waiting time, reliability, theory.
BL(P(n)Ґ,j) Classes of Functions of Bounded Variation
Presented by Member of the Academy L.Zhizhiashvili, December 5, 2000
Abstract. Generalized classes of functions of bounded variation are considered. For these classes the exact order of Fourier coefficients with respect to the trigonometric system is established. Moreover, an uniformly convergence criterion for the Fourier trigonometric series is formulated.
Key words: Class BL(P(n)Ґ,j), Wiener class BVp, Fourier coefficients, Fourier series
On the Absolute Convergence of the Series of Fourier-Haar Coefficients
Presented by Member of the Academy L. Zhizhiashvili, March 21, 2000
Abstract. In this paper, we study the absolute convergence of the series of Fourier-Haar coefficients of functions on the generalized Wiener's class BV(p(n)p).
Key words:absolute convergence, Fourier-Haar coefficients, generalized Wiener's class.
On One Choice of Nonparametric Estimation of the Regression Function
Presented by Member of the Academy H.Inassaridze, August 8, 2000
Abstract. The properties of the integral consistency and asymptotical efficiency of estimations of the regression function of Nadaraya-Watson type are studied. A mean value of the integral of the error square is taken as the measure of deviation and a kernel is sought for, which minimizes the measure of deviation. Two classes of the regression function, algebraic and exponential, are considered.
Key words: nonparametric, asymptotical efficiency, integral consistency
On the Strong Differentiation of Multiple Integrals Along Different Frames, II
Presented by Member of the Academy L. Zhizhiashvili, October 3, 2000
Abstract. The strong differentiability along different frames of Lebesgue multiple integrals is investigated. In particular, one of the given theorems characterizes at most countable unions of orbits of (n-1)th order that are R-sets.
Key words: strong differentiation, integral, basis.
Non-abelian Tensor Product of Restricted Lie Algebras
Presented by corr. member of the academy H. Inassaridze, May 16, 2000
Abstract. In this paper we introduce the non-abelian tensor product of restricted Lie algebras and the non-abelian second exterior power of restricted Lie algebra. For perfect restricted Lie algebra we get a construction of the universal central extension. The second Pareigis homology group of a restricted Lie algebra can be described via the non-abelian second exterior power.
Key words: non-abelian tensor product, non-abelian exterior product, restricted Lie algebra, crossed module.
M. Losaberidze, T. Iamanidze
On the Stressed State of the Elastic Half-Plane Caused by the Stamps Moving at a Constant Speed
Presented by Member of the Academy R.Adamia, July 10, 2001
Abstract. Dynamic problem of action of two stamps on the elastic half-plane is considered. A conclusion is drown that the epure of the contact stress of the action of stamps coincides with the results of the analogous static problem.
Key words: elastic half-plane, stamp, complex variables, stressed state of the body.
Application of Discrimination and Connectivity Analysis in Psychiatry
Presented by Corr. Member of the Academy A. Prangishvili, November 21, 2000
Abstract. In present work the use of some elements of fussy logic in psychiatry is discussed for decision-making (diagnostics).
Key words: fuzzy logic, discrimination analysis, connectivity theory.
D. Bukhsianidze, Z. Jaliashvili, T. Medoidze, Z. Melikishvili, A. Papashvili, Corr. Member of the Academy T. Sanadze, G. Tsintsadze
Absorption and Luminescence Spectra of Tm3+ Doped YLiF4 Laser Crystal: 1I6 and 3P0,1,2 levels
Presented November 7, 2000
Abstract. Absorption and luminescence properties of Tm3+ doped YLiF4 crystal for 2% concentration of activator were investigated. The absorption spectra, especially for the 1I6 level, show the strong concentration dependence. The luminescence spectra from the 1I6, 3P1 and 3P2 levels and the radiative lifetime of 1I6 level are measured. The most favorable channels for short wavelength lasing in Tm3+:YLiF4 are observed.
Key words:laser crystal, ultraviolet luminescence, radiative lifetime, absorption spectra.
T. Nadareishvili, Corr. Member of the Academy A. Khelashvili
Influence of the Scalar Potential on the Additional Coulomb Bound States in the Two-Body Klein-Gordon Equation and Massless Bound States
Presented November 11, 2000
Abstract. Mass formulae for the vector Coulomb potential in the two-body equation are generalized for the nonzero orbital moments. It is shown, that in the mentioned equation scalar Coulomb potential restricts additional bound states. Condition of the massless bound states existence is investigated.
Key words: vector, scalar potentials, additional and massless states.
R. Metskhvarishvili, I. Metskhvarishvili, Z. Miminoshvili, L. Nekrasova, Z. Mikava,
M. Rusishvili, N. Khazaradze, L. Khorbaladze
Investigation of multipolarity of 153Eu 69.67keV g-transition
Presented by Corr. Member of the Academy T.Sanadze, January 5, 2000
Abstract. Spectrum of conversion electrons for the 153Eu 69.67 keVg-transition by means of sector-type double focusing magnetic beta spectrometer with resolution of 0.2% was investigated. The relation of the internal conversion coefficients on the L1, L2, L3 subshells and M-shell was determined. A comparision of experimental and theoretical results allows us to establish that multipolarity of studied g-transition is mixed M1+E2. Mixture fraction of E2 component was determined.
Key words:multipolarity, internal conversion coefficients, b-decay.
L. Chkhaidze, T. Djobava, L. Kharkhelauri
Multiparticle azimuthal correlations in central nucleus-nucleus collisions at energy of 3.7 GeV per nucleon
Presented by Member of the Academy N. Amaglobeli, December 12, 2000
Abstract. Azimuthal correlations between protons and between pions have been investigated in central C-Ne, C-Cu, O-PB and Mg-Mg collisions at energy of 3.7 GeV/nucleon. “Back-to-back” (negative) correlations have been observed for protons in C-Ne, C-Cu and forp- -mesons in C-Ne, Mg-Mg collisions. For p- -mesons “side-by-side” (positive) correlations have been observed for heavy systems of C-Cu and O-Pb. The Quark Gluon String Model (QGSM) satisfactorily describes the experimental results both for protons and p- -mesons.
Key words:nucleus, proton, pion, correlation.
Investigation of Long-term Trend of the Mesopause Temperature from Observations of Hydroxyl Airglow in Abastumani Observatory
presented by Corr. Member of the Academy R.Kiladze, December 5, 2000
Abstract. Regular spectrographic observations of the OH (6-1) band during late twilight in the Abastumani observatory (420 N, 420E) in 1958-1992 enabled to determine the temperature of the mesopause (TOH). Seasonal variations of TOH, separately for the periods of maximum and minimum of the solar activity, as well as variations with the periods of 11 and 5.5 years have been found. A long-term negative trend of TOH (-0.7 K/years) has been confirmed and its behavior for different periods of the year has been investigated.
Key words:mesopause, temperature, trend.
General and Inorganic Chemistry
M. Gakhutishvili, R. Gigauri, Z. Machaidze, G. Koranashvili, M. Kokhreidze
Synthesis and Investigation of Ammine Complexes of d-Metals’ Dithioarsenates
Presented by Member of the Academy T. Andronikashvili, May 29, 2001
Abstract. It has been established that ammines of Sc(III), Y(III) and La(III) are easily precipitated by the action of precipitant - sodium dithioarsenate(V) on products of interaction of initial soluble salts with surplus ammonium hydroxide, while ammines of Cr(III) and Fe(III) dithioarsenates may be synthesized only by the action of ligand (NH3) on complex-forming agent.
Key words:dithioarsenates of transition metals, coordination compounds, ammines of Sc(III), Y(III), La(III), Cr(III), Fe(III), Co(III) dithioarsenates
I. Mikadze, V. Kasradze, A. Dolidze
Biologically Active Compounds Based on Natural Alcohol Components
Presented by Member of the Academy T. Andronikashvili, February 27, 2001
Abstract. Geranyl ester of 3-methyl-2E,Z,4E-decadienoic acid was synthesized to obtain an ecologically pure and highly efficient juvenoide. The replacement of the ethyl group by geranyl in ester may cause an increase of biological activity in juvenoide.
The synthesis of 3,7-methyl-2,7-octadiene-1-yl propionate, the pheromone of Diaspidiotus perniciosus Comst., was carried out in two steps on the base of geraniol, the plant component of essential oil.
Key words: juvenoide, pheromone, synthesis, etherification, geraniol.
T. Alavidze, T. Gogiashvili, V. Vasnev
Study of Physico-Mechanical Properties of Polyarylates
Presented by Corr. Member of the Academy L.Khananashvili, October 10, 2000
Abstract. Physico-mechanical properties of arsenic-containing polyarylates have been studied. The obtained results evidence good chemostability of arsenic-containing polyarylates to acid medium.
Key words: polyarylates, heat stability, thermostability.
M. Gverdtsiteli, N. Samsonia
Investigation of Fisherўs Reaction within the Scope of Quasi-ANB-matrices Method
Presented by Corr. Member of the Academy L. Khananashvili, August 29, 2000
Abstract. Algebraic investigation of Fisherўs reaction is presented within the scope of quasi-ANB-matrices method.The diagonal elements of ANB-matrices are the atomic numbers of chemical elements, whereas nondiagonal ones are the multiplicities of chemical bonds.
Key words:Fisherўs reaction, quasi-ANB-matrices.
D. Tsakadze, Sh. Samsoniya, N. Kupatashvili, R. Ziyaev, A. Abdusamatov
Alkaloids of Cocculus laurifolius DC
Presented by Corr. member of the Academy D.Ugrekhelidze, March 13, 2001
Abstract. Earlier known alkaloids (coculine, coclaurine, norisoboldine, isoboldine) and new alkaloids (talikmidine and glaucine) were isolated and identified from the leaves of the cultivated in Georgia plant Cocculus laurifolius.
Key words: alkaloids, Cocculus laurifolius, identification.
M. Katsitadze, G. Bezarashvili, Z. Dzotsenidze, M. Abuladze, K. Mikaberidze, M. Kekenadze
Simultaneous Action of Pentane and Hexane on the Inflammation Process of Detonating Gas
Presented by Member of the Academy T. Andronikashvili, May 23, 2000
Abstract. Simultaneous action of pentane and hexane on the ignition of Detonating mixture has been studied. Mathematical design of two factoral experiment was used. It has been found, that the simultaneous effect of these inhibitors on ignition process is of additive character in the studied temperature range.
Key words: inflammation, inhibition, additivity effect.
Z. Dzotsenidze, D. Petviashvili, M. Museridze, K. Sulaberidze
A Study of Heterogeneous Recombination of Bromine Atoms on Solid Surface
Presented by Member of the Academy T.Andronikashvili, September 24, 2000
Abstract. The velocity constant of the heterogeneous recombination of Br atoms on the surface of quartz and the recombination coefficient have been established. The method of EPR combined with continuous vacuum plant was used. It has been found that kBr=100.3 sec-1 andgBr=2·10-3 at room temperature.
Key words:electron paramagnetic resonance, heterogeneous recombination, bromine atom.
M. Kekenadze, M. Rusia, G. Bezarashvili, Z. Dzotsenidze, R. Gigauri
Mathematical modelling and optimization of chromium (III) tetraoxoarsenate with 2,2'-dipyridil synthesis by experimental design method
Presented by Member of the Academy K.Japaridze, March 27, 2001
Abstract. The article is devoted to the statistical modelling of chromium (III) tetraoxoarsenate with 2,2'-dipyridil formation process. Second order multifactoral design method was used and the empirical regression equation has been deduced. The equation adequately describes the dependence of weight percent yield of the reaction on temperature and hydrogen-ion index. The results obtained make it possible to predict the experimental conditions which provide an impoved percent yield of the investigated process.
Key words: mathematical modelling, experimental design, coordination compound, tetraoxoarsenate, 2,2'-dipyridil.
D. Tsagareishvili, K. Nadiradze, Corr. member of the Academy I. Baratashvili,
J. Bagdavadze, A. Nadiradze, K. Ukleba
A Method for Estimation of Standard Heat Capacity of Intermetallic Compounds According to their Melting Temperature
Presented September 12, 2000
Abstract. A new equation has been derived by quasithermodynamic method for calculating the standard heat capacities of intermetallic compounds using their melting temperatures with the accuracy ±3.0%.
Key words: Standard heat capacity, intermetallic compounds, melting temperature.
G. Agladze, V. Kveselava, G. Gordadze
The Similarity Determining Criteria for Optimization of the Packed Bed Electrode Systems and its Experimental Checking
Presented by Corr.Member of the Academy J.Japaridze, September 19, 2000
Abstract. The criterial equation of invariant similarity of the specific consumption of electric energy in packed bed bipolar electrode systems is derived. The similarity determining criteria expression and the dependence of the parameters of the model and the N-times increased capacity setup are obtained. The accuracy of the resulting expression is tested on an example of potassium permanganate electrosynthesis. It is shown that the relative error between nondimensional parameters of the capacity obtained experimentally as well as calculated theoretically doesn’t exceed 20%.
Key words: packed bed electrode, potassium permanganate, similarity determining criteria, setup enlargement.
Member of the Academy E. Kemertelidze, M. Benidze
Steroidal glycosides of Yucca gloriosa L. and their influence on plant growth
Presented July 4, 2000
Abstract. two new steroidal spirostanol glycosides have been isolated from the flowers of Yucca gloriosa and characterized as: 3-0-[a - L - rhamnopyranosyl (1®4) - 0-b-D - glucopyranosyl (1®3)] - [0-b-D-glucopyranosyl (1®2)] - 0-b-D-glucopyranosyl (1®4) - 0-b-D galactopyranoside 5a, 25R - spirostan - 3b - ol and 3-0- [a - L rhamnopyranosyl (1®4) - 0-b-D-glucopyranosyl (1®3)] - [0-b-D-glucopyranosyl (1®3) - 0-b-D-glucopyranosyl (1®2)] - 0-b-D-glucopyranosyl (1®4) - 0-b-D galactopyranoside 5a, 25R - spirostan - 3b - ol with the help of physical and chemical investigations. Effective plant growth stimulant named as Alexin has been prepared on the basis of steroidal glycosides of Yucca gloriosa L.
Key words:steroidal glycoside, steroidal sapogenin, spirostanol glycoside furostanol glycoside, tigogenin, gitogenin, saponin, 5a - pregnenolone, 5a - androstanole, dehydrotestosterone, methandrostenolone.
On the Kinta Suite
Presended by Member of the Academy I.Gamkrelidze, October 24, 2000
Abstract. Kinta suite was distinguished by N.B.Vassoevich as Upper Eocene- Oligocene. At present there exist various opinions about the age and volume of the suite. The facies and paleogeographyc investigation of Kinta suite sediments gave the author possibility to date it as Oligocene-Lower Miocene and to regard it as facial analogue of Maikopian series. The lower, Upper Eocene part of the suite is determined as separate litho-stratigraphyc unite.
Key words: suite, age, Maikop deposits, sedimentary basins, facies, paleogeography.
Horizontal-vertical random seismic vibration of big span construction
Presented by Corr. Member of the Academy I.Ghudushauri, November 7, 2000
Abstract. Random horizontal-vertical seismic vibration of the plane big span system is examined. The method of the system investigation is founded on presentation of both components as multiplication of deterministic envelope function and stationary random processes with fraction-rational density and on the use of analytical methods of uninterrupted Markov Random Processes. By repeated calculations for the various realization characterizing influence the searched deflection curves (both horizontal and vertical direction) are received from which the maximal values of searched parameters are obtained.
Key words: big span frame system, random process, Markov process, dispersion.
Automatic Control and Computer Engineering
Modelling of Reserved System of Self-Organized Criticality
Presented by Member of the Academy V. Chichinadze, May 16, 2000
Abstract. Modelling of three-object reserved system by self-organized criticality occurs by means of antagonistic differential equation. The expressions by which nonstable equilibrium of the system can be determined in any moment of time have been obtained.
Key words: antagonistic, reserved, balance.
G. Gunia, I. Mebuke
Results of the Estimation of Transport Exhaust Greenhouse Gas Prognostic Emissions in TRACECA Corridor
Presented by Member of the Academy Ts.Mirtskhulava, August 15, 2000
Abstract. The paper considers the expected increase of greenhouse gas emissions due to the intensification of international as well as domestic motor-transport traffic in the “TRACECA” corridor. The relevant prognostic data are presented.
Key words: greenhouse gas, emission, TRACECA, transport corridor.
The Effect of Environment factors on Quantity of Ips typographus L.
Presented by Member of the Academy G. Gigauri, June 12, 2001
Abstract. The drought of 2000 in Borjomi canyon caused the formation of new loci of Ips typographus L. The number of trees destroyed by this pest reached 70%. Inhabitation density on 1dm2 cortex increased too. the researches have been carried out to detect the pathology. Drought weather creates favorable conditions for mass reproduction of Ips typographus L.
Key words:Ips typographus L., Borjomi canyon.
Bamboo Nursery-Stock Management on Dried Lands of Kolkheti Lowland
Presented by Member of the Academy G.Gigauri, March 14, 2001
Abstract. The methods of interrow soil management in bamboo nursery-stock on dried lands of Kolkheti lowland are presented.
Key words: bamboo, planting material, Kolkheti lowland.
N. Melia, L. Gabedava, L. Zhgenti, V. Subeliani, L. Sarjveladze
Study of the propagation of Stevia rebaudiana under the Georgian conditions
Presented by Corr. Member of the Academy G. Nakhutsrishvili, December 26, 2000
Abstract. The propagation peculiarities of Stevia rebaudiana under Kobuleti and Tbilisi climatic conditions and some aspects of the reproductive anatomy of the male and female gametophytes have been investigated.
Key words: Stevia rebaudiana, propagation, embryo sac, pollen grain, seed formation.
Foreign Species of Forest Flora in Batumi Botanical Gardens
Presented by Member of the Academy G. Gigauri, July, 10, 2001
Abstract. Items of invasion of exotic and adventic kind of phytocenoses in relic colchic forest of the Batumi Botanical Gardens are considered in the article. The study of reproduction of unlocal kind of vegetation in phytocenoses of Colchic forest showed, that Eastern Asian plants are characterized by high invasion potential.
Key words: Colchic forest, phytocenoses, foreign species.
N. Keburia, G. Alexidze
Galactose-Specific Lectins from Mistletoe (Viscum Album L.) Fruits: Isolation and Some Properties
Presented by Corr. Member of the Academy N. Aleksidze October 10, 2000
Abstract. The galactose-specific lectins characterized by high hemagglutinating activity have been identified from the fruits of mistletoe (Viscum album L.). They agglutinate human erythrocytes without specificity towards ABO blood types. Some of their physico-chemical properties were studied. They are composed of Mr 63, 55, 40, 38, 31 and 29 kDa polypeptides. The characteristics of 63, 55, 31 and 29 kDa polypeptides are in accordance with those of described lectins identified from green parts of mistletoe. The polypeptides of Mr 40 and 38 kDa presumably should be the subunits of new fruit lectin.
Key words:mistletoe, fruit, galactose-specific lectin.
Genetics and selection
The Importance of Study of Isoenzyme in the Selective-Genetical Work with Tea Plants
Presented by Corr. Member of the Academy P. Naskidashvili, September 19, 2000
Abstract. The selective-genetic work with tea plants is very laborsome. About 15 years are needed for breeding a new kind. The usage of isoenzymes for identification of valuable forms of plants is very perspective, especially for the tea plant because it is reproduced vegetatively and the identified correlations between isoenzyme, alcohol dehydrogenase and valuable features of tea plants – taste and flavor – is preserved in clones.
Key words: isoenzyme, electrophoresis, selection.
Genetics and Selection
I. Kapanadze, G. Getsadze, V. Gotsiridze
Vine Tissue Chimeras
Presented by Corr. Member of the Academy D. Jokhadze, January 16, 2001
Abstract. Chimeras of various categories have been received from the combined callus of grafted Vitis silvestris and Vitis vinifera. Monochlamydeous chimeras, which have only the epidermis of Vitis silvestris, show partially increased resistance to peranosporosis (mildew, oidium), and the dichlamydeous chimeras, which have the epidermis, phloem and stomata of Vitis silvestris become absolutely resistant to peranosporosis.
Key words: chimera, callus, resistance, sisterly plant, decapitation.
Genetics and Selection
T. Sadagishvili, T. Zarnadze, M. Menabde, A. Shatirishvili
The Killer System Inactivation in Wine Yeast under the Action of UV-rays
Presented by Member of the Academy P. Naskidashvili, April 24, 2001
Abstract. The antagonistic activity has been defined in 4000 strains of 9 populations in Kakheti. The strains of K, N and S-phenotypes are found in different density. The populations under this mark are polymorphic. four different kinds of killer systems (K1-K4) are revealed. UV-rays causes high-frequent inactivation of the killer system.
Key words: yeast, population, killer, UV-sensitive, antagonistic activity.
Human and Animal Physiology
V. Maloletnev, G. Beradze, G. Dzidziguri, I. Kharatishvili
Implementation of General Ability Tests (Gat) in Local Populations
Presented by Member of the Academy T.Oniani, July, 1, 2000
Abstract. The analysis of the situation existing in professional testing has shown that in order to implement International Standards for testing aimed on professional selection in Georgian conditions it is necessary to carry out spade-work. At the current stage it is considered to be especially important to clarify the possibility of application of GAT (non-verbal and numerical) in local conditions. For this 138 volunteers (average age 32±9.1, male - 77, female – 61) were investigated. The analysis of testing norm representativeness allows to conclude that for the majority of people the methodological training allowing them to acquire skills necessary to complete the procedure is necessary. In order to evaluate test scores adequately it is desirable to develop flexible algorithms for each population.
Key words: psychometrics, testing, general ability, representation of test norms.
Human and Animal Physiology
Microelectrophysiological Investigation of Input from Lateral Nucleus of the Amygdaloid Complex to Basal Nucleus
Presented by Member of the Academy T. Oniani, January 25, 2000
Abstract. The basal nucleus (BN) of amygdaloid complex in cats was explored with microelectrodes during electrical stimulation of the lateral nucleus (LN). Stimulation influenced 69 (76.6%) out of the 90 units in parvicellular part and 15 (25.4%) out of the 59 units in magnocellular part. Pure excitation was observed in 24 units (26.08%), activation-inhibition sequence in 33 (39.6%), pure inhibition in 15 (16.3%), inhibition-activation sequence in 11 (11.8%) and complex polyphasic reaction was observed in remained 9 (9.7%) units. All of units were activated orthodromocally and transsynaptically. Latencies ranged from 1.7 to 43 in pervicellular part and between 10.2 to 62 ms in magnocellular part of BN. With short latency in parvicellular part responded 58.46% of responding units, in magnocellular part short latency responses were observed only in a very limited population of units.
The data support the existence of a monosynaptic pathway from the LN to the parvicellular part of BN.
Key words: lateral nucleus, basal nucleus, parvicellular part, magnocellular part, latency.
Human and Animal Physiology
Member of the Academy T.Ioseliani, Kh.Kuprashvili, N.Mgaloblishvili, R.Intskirveli, I.Kobaidze
Effects of Noradrenaline Application on the Penicillin-Induced Neocortical Seizure Reactions
Presented July 18, 2000
Abstract. Experiments have shown that noradrenaline application on the cortex results in increased neocortical seizure reactions, induced by penicillin. The reference data and experimental results obtained support once again our earlier suggestion that facilitation of the neocortical seizure reactions is determined by adrenaline-induced increase of the neocortical neurons excitability.
Key words:neocortex, adrenaline, seizures, excitability, rabbits.
G. Managadze, M. Pirtskhalava, Member of the Academy M. Zaalishvili
Conformational Analysis of the Myosin II Tail’s Fragment Rich in Glutamic Acid
Presented October 17, 2000
Abstract. Using the Monte Carlo method, the investigation of the model fragment for myosin rod region, rich in Glu has been carried out both for uncharged and charged states. It was found, that charging of glutamic acid residues causes conformational transitions which are expressed by the propensity rising of model structure to the extended (d > 2.5) conformations. Hence, a nature of possible conformational transitions is supposed.
Key words: myosin S2 fragment, uncharged and charged glutamic acid.
N. Tevzadze, M. Saatashvili, Corr. Member of the Academy D. Jokhadze
General Characterization of Proteins from the Local Strain of Spirulina platensis
Presented August 22, 2000
Abstract. Fractionation of soluble cytosole proteins from cells of two different forms of Spirulina platensis was performed using different solvents: 0.02M K-phosphate buffer (pH7.2), distilled water, 10% NaCl and 0.5M NaOH. Protein fractions were extracted with different solvents consecutively and separately. The results have shown that the complete extraction of pigment-containing protein phycocyanin (absorption at 620nm wave length) took place in water phase only.
Key words: Spirulina platensis, extraction, protein fractions.
M. Saatashvili, R. Goglidze, Corr. Member of the Academy D. Jokhadze
Cytochrome f, Biliprotein and Ferroproteid from Different Forms of Spirulina
Presented September 12, 2000
Abstract. Cytochromes, biliproteins and ferroproteids from different forms of blue-green algae Spirulina platensis, have been studied. It was revealed, that the absorption peaks of oxidized cytochromes extracted from both Tashkent and Kumisi Lake forms of Spirulina coincided with each other. The same results were observed in case of biliproteins too. The absorption spectra of ferredoxine were sharply different and study of Kumisi Lake Spirulina with its different ferredoxine is of definite interest.
Key words: Spirulina platensis, biliprotein, ferroproteid.
Kh. Gamkrelidze, N. Zarnadze, M. Gogoberidze, N. Chelidze
Induction of Callusogenesis and Organogenesis in Stevia raboudiana Leaf and Shoot
Presented by Corr. Member of the Academy N. Nutsubidze, May 15, 2001
Abstract. It has been established that among applied auxins the most intensive callusogenesis of Stevia raboudiana leaf and shoot initial explants was induced by naphthaleneacetic acid (NAA) and 2,4-diclorophenoxyacetic acid (2,4-D). For induction of morphogenesis in created callus the most effective were NAA (naphthaleneacetic acid) and indolebutyric acid (IBA) and from cytokinins benzylaminopurine (BAP) and zeatine.
Key words: Stevia raboudiana, callus, auxins, cytokinins, rhizogenesis.
L. Beriashvili, R. Gakhokidze, T. Chigvinadze
Formation of Glycolic acid in C3 and C4 plants during photosynthesis
Presented by Corr. Member of the Academy N. Nutsubidze, July 18, 2000
Abstract. The characteristics of glycolic acid formation during photosynthesis in C3 and C4 plants have been studied.
Key words:glycolic acid, formation, C3 and C4 plants.
M. Gvritishvili, K. Kacheishvili-Tavartkiladze
Contribution to the Fungal Biodiversity of Georgia: Microfungi on Fruits of Rosa spinosissima L.
Presented by Corr. Member of the Academy G.Nakhutsrishvili, April 3, 2001
Abstract. 16 species of microfungi first recorded on Rosa spinosissima are briefly characterized. Of them Hendersonula sp. and Metasphaeria depressa are new records to Georgia.
Key words: microfungi, Rosa spinosissima, fruits.
Analysis of the Taxonomic Structure of Nematodes in the Soil of restored Ecosystems
Presented by Corr. Member of the Academy B. Kurashvili, May 29, 2001
Abstract. Diversity of the nematode fauna, asymmetric origin of big nematode taxons and the character of dominance and constantation is established.
Key words: nematoda, fauna, structure.
Mulberry Harmful Lepidoptera in Georgia
Presented by member of the Academy I.Eliava, August 15, 2000
Abstract. Mulberry harmful Lepidofauna in Georgia has been specified and new species varieties have been found and studied.
Key words: lepidoptera, insect, mulberry, loopermoth, nymphal stage, moth, biopreparation.
Parasitology and Helminthology
The Entomopathologic Nematode New Species Steinernema (Neoaplectana) Disparica SP. N (Rhabditida, Steinernematidae) From Georgia.
Presented by Corr. Member of the Academy I. Eliava, August 1, 2000.
Abstract. The new species Steinernema (Neoaplectana) disparica sp. n. of nematode (Ocneria disparica L.) is described in this work. The full measures of females, males and invaded larvae with original pictures are given.
Key words: generation, genital, dorsal, ventral, apical.
D. Kherodinashvili. A. Gvenetadze, L. Khonelidze, M. Nutsubidze
The Long-term Results of Laparoscopic Sterilization
Presented by Corr. Member of the Academy T. Dekanosidze, June 6, 2000
Abstract. Laparoscopic Steilization represents safe and the most highly effective methods among the modern methods of family planning. In the present work the use of laparoscopic sterilization in Georgia has been studied. This is the procedure, which protects the women from unwanted pregnancy, it is made without opening the abdominal wall, the percents of complications are very little and practically doesn’t change the hormonal status of the body.
Key words: sterilization, surgery contraception.
Sh. Lolashvili, R.Mitichashvili, I.Modebadze
The Possibility of More than one Hair Formation in one Follicle of Sheep Skin
Presented by Corr. Member of the Academy G.Tumanishvili, December 12, 2000
Abstract. We have studied the action of threefold shaving for the first 15 months of lamb’s life : prekoss breed, Georgian fine-wooled, Georgian half fine-wooled and Tusheen. The experimental data testify that threefold shaving makes strong action on the organism of the animal and stimulates the formation of some hair fibrillae inside hair follicle. Such follicles were detected in prekoss from 100 follicles - 12.6; in lambs of Georgian fine-wooled - 10.6; in Georgian half fine-wooled - 9.8; in Tusheen -1.0. Our results suggest that temperature factor of thermoregulation caused by threefold shaving stimulates the appearance of genetically programmed feature necessary for adaptation.
Key words: sheep, follicle, hair formation.
N. Gachechiladze, R. Sturua, K. Shelegia, M. Tevzadze, N. Porakishvili, T. Shaburishvili, M. Ramazashvili
Synthesis of Several T Cell Dependent Mediators in Patients with Insulin-Dependent Diabetes Melitus (IDDM) and Diabetic Vascular Complications
Presented by Member of the Academy L. Bakhutashvili, June 20, 2000
Abstract. Intensity of migration inhibition factor (MIF) synthesis in response to non-specific mitogen was investigated in patients with IDDM and diabetic vascular complications. Significant decrease of MIF synthesis in response to poke-weed mitogen (PWM) was demonstrated. Decrease of MIF secretion in response to Concanavalin A (ConA) was revealed in gangrenous complications during IDDM, whereas during diabetic rethinopathy the difference from healthy donors were insignificant.
Key words: IDDM, MIF, CD4, ConA, PWM.
T.Tsintsadze, E. Tuskia, N.Antelava, T.Sanikidze, N.Gongadze, R.Katsarava
on Oxidation Metabolism in Rabbits with Experimental Wounds Treated by “PhagoBioDerm”
Presented by Member of the Academy V. Bakhutashvili, June 12, 2001
Abstract. Wound dressing “PhagoBioDerm” based on original biodegradable poly(esteramide) and containing bacteriophages applied for treatment of experimental wounds has antiinflammatory, membranestabilising, anabolic action, normalises oxidation metabolism, to normalises microcirculation and wound healing.
Key words: biodegradable polymer, wounds dressing, electron paramagnetic resonance.
N. Khmaladze, G. Kavtaradze
Fixed Set of 7 - 12 Years Old Children in Correlation with
Presented by Member of the Academy N.Tatishvili, May 29, 2001
Abstract. A comparative analysis of the fixed set and interpersonal attitudes has been made in 112 children. The D.Uznadze Fixed Set method and the method of children’s and animal projection, adapted in the Georgian Institute of Psychology, have been used. Relations between the child’s personal set and the attitudes towards parents, members of the family, teachers, and mates, have been established. Positive attitudes towards the associates were displayed by the children with predominant plastic-dynamic set, while the negative attitudes – by the children with awkward-static- and zero set.
Key words: fixed psychological set, interpersonal relations, children.
M. Janiashvili, T. Matcharashvili, G. Alpaidze, N. Mamamtavrishvili
Dynamics of variability of myocardial contractility indices in
patients with hypertension
Presented by Member of the Academy T. Oniani, October 31, 2000
Abstract. In present study we have evaluated exponents of regression of power spectrum -a and Lempel-Ziv complexity measure (LZC) of myocardial contractile indices of healthy persons and patients with hypertension. Namely, variability of mean velocity of myocardial fibers circular contraction (MVCC), end diastolic pressure (EDP) and ejection fraction (EF) were investigated in patients with different form of arterial hypertension.
It was found that considered indices of myocardial contractile functions in healthy persons and patients with mild form of hypertension are characterized by high extent of variability while mentioned indices in patients with moderate and severe forms of hypertension practically do not change.
Key words:dynamics, hypertension, contractile indices.
Structural changes of adrenal medulla under permanent
electromagnetic fields (PMF) effect
Presented by Member of the Academy N.Javakhishvili, October 24, 2000
Abstract. A recent study reports the results of an experimental investigation of adrenal glands medulla alteration due to the effect of permanent electromagnetic fields (1000 and 5000 A/m) in light and electromicroscopic level.
The general finding is a direct influence on the microcirculatory network (blood vessels wall) and chromaffin cell mitochondria damages.
Key eowrd: adrenal medulla, ultrastructure electromagnetic field.
K. Barabadze, T. Churadze, M. Tsulukidze
The Role of Free Radical NO and Cytokine TNFa in Pathogenesis of Obstructive Bronchitis in Infantile Age
Presented by Member of the Academy N. Javakhishvili, December 19, 2000
Abstract. In pathogenesis of acute obstructive bronchitis the activation of free radical processes plays a significant role. We have studied the role of free radical - nitrogen oxide and inflammatory cytokine tumoral necrosis factor. The increase of NO and TNFa during acute illness and the existence of positive correlative connections among them are confirmed.
Key words:obstructive bronchitis, nitrogen oxide, tumoral necrosis factor.
S. Lashkareishvili, L.Tsiskarishvili
Hydrochemical Condition of the Paliastomy Lake
Presented by Corr.Member of the Academy I.Eliava, March 27, 2001
Abstract. The Paliastomy lake thermal regime, water transparence, active reaction (PH), free oxygen content, oxygen saturation degree, permanganate oxydability of filtered and unfiltered water, dynamics of biogenic elements (NH+, NO2-, NO3-, P), general mineralization component ions ( Na+ + K+, Ca+2, Mg+2, SO-24, Cl-4) and general mineralization are considered. Principal factors determining their change are established.
Key words:the Paliastomy lake, hydrochemical condition.
Criteria for Commercial Bank Service Selection
Presented by Corr. Member of the Academy L.Chikava, June 2, 2001
Abstract. New indexes to the method of analysing the activities of commercial bank in order to select the bank with maximum interest for creditors and clients are offered.
Key words: the creditors.
Methodological Approaches to the Development of Competitive Strategies in Retail Trade
Presented by Corr. Member of the Academy L. Chikava, March 6, 2001
Abstract. The paper regards the problem of developing the competative strategies in retail trade. Business competitive strategies in retail trade companies are considered and a conclusion is drawn that a system approach to the method of analysis of hierarchies is best acceptable for the process of developing the competition strategies in retail trade.
Key words: competative relation, competative strategies, strategic planning.
Contract on Lifetime Care
Presented by Corr. Member of the Academy G.Intskirveli, June 12, 2001
Abstract. In general terms, lifetime care means to permanently ensure a person with accommodation, food and care. Lifetime care under a contract implies a legal transaction, where one party takes an obligation to provide the other part with permanent material ensuring from the property obtained into ownership from that respective party. New Civil Code of Georgia envisages the lifetime care in Part 3, particularly, in the Private Section of the Contractual Law – Chapter 26, Section 2, Part 1 (Articles 941-950).
Key words: beneficiary, lifetime care, caretaker.
The Analysis of Consonant Clusters
(on the material of the Daghestanian languages)
Presented by Member of the Academy T. Gamkrelidze, May 1, 2001
Abstract. We have made distributional analysis of consonants in Avarian-Andian-Didoian languages. Basic regularities of their combination and tendencies have been established.
Key words: articulation zones, consonants distribution.
Motive of Jealousy in Shakespeare’s Tragedy “Othello”, Untraditional Interpretation
Presented by Corr. Member of the Academy A.Gvakharia, April 12, 2001
Abstract. The motive of “jealousy” is the field of “traditional” interpretation. It is a source of the main psycho-motivation principle for a conceptual resolution of the main conflict being in the basis of plot development of Shakespeare’s “Othello”.
Key words: motive, jealousy, Othello.
Some Elements of the Wedding Ritual in the Odyssey of Homer
Presented by Corr. Member of the Academy R.Gordeziani, May 15, 2001
Abstract. The ball is a gift and it certainly reminds us of the sun. The consideration about the ball being the symbol of the female origin is quite acceptable. The resemblance between the three elements (ball, sun, maiden) is singled out.
Key words: wedding ritual, solar cult, ball, games.
Relations between the Georgian Government and the Command of the British Troops stationed in Georgia (1918-1919)
Presented by Member of the Academy R.Metreveli, August 21, 2001
Abstract. Turkey, one of the states making up the Triple (Quadruple) Alliance (Germany, Austria-Hungary, Turkey and Bulgaria), suffered a defeat in World War I in October 1918. The same month Turkey signed a truce. The act was executed on board the British warship Agamemnon then standing in the port of the Mudros City on the Greek Island of Lemnos. Admiral Caltorp of the warship on behalf of the Antante Cordiale and Hussein Raugh, Hikmet and Saadul on behalf of Turkey signed the truce.
Under the Mudros Truce, the Turkish troops were to withdraw from all Transcaucasian territories that they held to surrender them to the allied (in this case the British) forces. Article 15 of the Mudros Truce spelled out that the Allies would occupy Batumi. Britain seized this opportunity and quickly occupied Batumi and Batumi District.
Key words: Mudros Truce, Georgia, British mission, Bolshevik Russia.