volume 161 number 2 March-April
Corr. Member of the Academy V. Kokolashvili
Two-Weighted Inequalities for Hilbert Transforms for Even and Odd Functions
Presented July 12, 1999
Abstract. The criteria of two-weighted inequalities for the integral operators related to Hilbert transforms are derived.
Key words: Hilbert transform, two-weighted inequality.
Corr. Member of the Academy D. Baladze, G. Romanadze
Contracted K-groups of the Homology and Cohomology over the Pairs of Copresheaves and Presheaves respectively
Presented June 30, 1999
Abstract. Alexandrov - Cech’s K-groups of a homology and cohomology of topological space above the pairs of copresheaves and presheaves, respectively, are defined to be contracted. For these groups the duality theorem is proved, In that special case, when a complex K, consisting from one point and both pairs of copresheaves and presheaves, is constant, the defined groups coincide with the earlier known contracted groups of a homology and cohomology. Besides the exact K-cohomologous sequence is under construction, which gives and estimation to the contracted K-homologous group taken above the pair of presheaves through the contracted K-groups of cohomologies, taken above presheaves.
Key words: copresheaf, presheaf, contracted groups, chain, cochain.
Summability of Multiple Trigonometric Fourier Series in Lp([0,2p]N) Spaces
Presented by Member of the Academy L.Zhizhiashvili, December 21, 1998
Abstract. In this paper we study the summability by negative order Cesaro methods of N-dimensional Fourier series with respect to the trigonometric system in Lp([0,2p]N), 1 Ј p Ј µ spaces.
Key words:Cesaro summability, trigonometric system, Fourier series.
On Multiple Trigonometric Series
Presented by Member of the Academy L.Zhizhiashvili, June 3, 1998
Abstract. A property of convergent multiple trigonometric series is presented.
Key words: multiple trigonometric series, convergence in Pringsheim sense.
On Conformal Mapping of Doubly-Connected Domain Bounded by Convex Polygon with Linear Section on Circular Ring
Presented by Corr. Member of the Academy R.Bantsuri, October 19, 1999
Abstract. This paper deals with the construction of conformally mapped function of doubly-connected domain bounded by convex polygon with linear section on circular ring.
Key words: conformal mapping, convex polygon.
Some Approximated Properties of the Cazaro average of the Conjugate Trigonometric Fourier Series
Presented by Member of the Academy L. Zhizhiashvili, May 20, 1999
Abstract. Some approximate properties of trigonometric Fourier series of function f conjugated with Cezaro average are considered.
Key words: Cezaro average, Fourier trigonometric series.
R. Gachechiladze, O. Maisaia
Application of the Method of Boundary Variational Inequalities for Statical Problems of the Theory of Elasticity with Regard to Friction
Presented by Member of the Academy T. Burchuladze, January 22, 1999
Abstract. Using the method of boundary variational inequalities, staticalproblems of the classical and couple-stress theory of elasticity are studied for anisotropic, nonhomogeneous media, when friction is taken into account on the whole or on a part of the boundary.
Key words: Boundary variational inequality, friction, theory of elasticity, couplestress elasticity, statics.
The Analogue of W. Hurewicz’s Inequality and on One Problem of A. V. Arkhangel’skii
Presented by Corr. Member of the Academy H. Inasaridze, April 5, 1999
Abstract. The formal analogue of W. Hurewicz’s inequality (dimXЈ dimf + dimY) for certain dimension-like function is proved. A new example, concerning A. V. Arkhangel’skii already solved problem (about the cardinality of the set of points with noncompact fibres under continuous closed mappings defined on a Lindelof space) is constructed.
Key words:continuous, closed, mapping, dimension, compactification, Tychonoff, Hurewicz.
Weak Type Inequalities for the Maximal Operators in Banach Functional Spaces
Presented by Member of the Academy L.Zhizhiashvili, April 19, 1999
Abstract. Necessary and sufficient conditions are shown in order that the inequality holds with some positive C independent ofl > 0, where X, Y are Banach functional spaces.
Key words:Banach space, maximal operator, weak-type operator.
L. Gogorishvili, T. Kamushadze, Sh. Mirianashvili, R. Shalamberidze, G. Mirianashvili, M. Iordanishvili, E. Keshelava, N. Rtveliashvili, A. Matveenko, N. Mirtskhulava, A. Mirtskhulava, L. Khavtasi, K. Edilashvili
The Improving Method of Photoelectric Parameters of Photoreceivers Based on Epitaxial Layers of Pb1-xSnxTe
Presented by Corr. Member of the Academy T. Sanadze, July 27, 1998
Abstract. The preparation method of intermediate barier layer of proper oxide of solid solution for metal-epitaxial layer Pb1-xSnxTe system, preventing the interaction of metal with semiconductor components and considerably improving photoelectric characteristics of infrared photoreceivers based on Pb1-xSnxTe was carried out.
Key words:deposition, oxide, epitaxial layers.
T. Kereselidze, V. Kirikashvili, M. Tsulukidze
Correlation of the diabatic MO of Diatomic Quasimolecules with Account of the Fine Structure of Levels
Presented by Corr. Member of the Academy T. Sanadze, November 30, 1998
Abstract. Rules for the correlation of the diabatic molecular orbitals of diatomic quasimolecules, accounting fine structure of levelas are obtained.
Key words: correlation, adiabatic, diabatic, quasimolecule.
G. Gamtsemlidze, K. Gamkrelidze, M. Mirzoeva, G. Shonia
Description of Critical State of High-Temperature Ceramic YBa2Cu3O7-x Superconductor with Account of Polycrystalline Structure of the Sample
Presented by Corr. Member of the Academy T. Sanadze, April 10, 1999
Abstract. High-temperature ceramic superconductor magnetization taking into account the granule anisotropy is studied.
Key words: magnetization, anisotropy, polycrystal, hysteresis.
O. Davarashvili, M. Enukashvili, N. Kekelidze, E. Stepanov, A. Shotov
Study of Molecular Gases Content in the Atmosphere and in Human Exhalation by the Laser Spectroscopy Method
Presented by Corr. Member of the Academy T. Sanadze, November 30, 1998
Abstract. The creation of the multicomponent laser gaz analyser is presented and the functional scheme is given. The sensitivity at the level of 10-8 is achieved for discovering of Co, NH3, CH2 and isotopes CO2, NO in the atmosphere and for earlier diagnosis of patients.
Key words:laser spectrometer, gas analysator, sensitivity, laser tuning.
The Basis of Theory of X-ray Monochromators and Elliptical Reonthenometry
Presented by Member of the Academy G. Kharadze, July 26, 1999
Abstract. We try to find the united approach of all well-known methods of X-rays focusing. The universality of elliptical monochromator and possibility of inculcation of new X-ray investigation method - elliptical roentgenometry is shown.
Key words: X-rays, focusing methods, bended monochromator, logarithmic spiral, ellipse, elliptical reotgenometry.
T. Buthuzi, M. Sharvashidze, E. Chikoidze, L. Trapaidze
Preparation Method of Ohmic Contacts in Implaneted Layers
Presented by Member of the Academy T. Sanadze, May 24, 1999
Abstract. We have used the universal method which helps not only to create Ohmic contacts but also to increase implantation efficiency. For n-type ZnS there was used In and Al, but for p-type only Au and Ag. Ion beam precipitation method was elaborated for metallic plate. Voltamperic characteristics obtained in this way are given in the paper.
Key words: Ohmic contact, work function, implantation.
G. Kimeridze, R. Inasaridze
The Nova Star in Andromedae Nebula
Presented by Member of the Academy J. Lominadze, March 1, 1999
Abstract. Position, brightness and finding chart of the nova discovered at the Abastumani Astrophysical Observatory (AbAO) in the Andromedae Nebula are presented. According to the brightness variability behaviour it belongs to the class of the fast or very fast novae.
Key words: novae, photometry, astrometry.
Z. Khvedelidze, N. Pavlenishvili
Evaluation of Energy Characteristic of Atmosphere Geopotential Field
Presented by Member of the Academy B. Balavadze, November 16, 1998
Abstract. Evaluation of energy characteristic of atmosphere geopotential field has been considered. The results obtained by baroclinic atmosphere numerical model and then their comparison with real observations and data given by barotropic model, as well, enable us to consider it as energy characteristic almost completely describing atmosphere processes taking place in the Caucasus region. Therefore, it can be used as a criterion of stability for numerical models of atmospheric processes.
Key words: geopotential field, energy characteristic, relief, barotropic atmosphere, barochlinic atmosphere.
G. Gogichaishvili, T. Urushadze
Some Data on Georgian Soils Stability against Erosion
Presented by Member of the Academy Ts. Mirtskhoulava, June 28, 1999
Abstract. The article deals with several aspects of main Georgian soils stability against erosion.
Key words: soil erosion, soil erosiveness factor, soils of Georgia.
Sh. Shatirishvili, Sh. Gigilashvili
Chromatographic Analysis of Wines Liquid Phase
Presented by Member of the Academy T. Andronikashvili, December 28, 1998
Abstract. We present the results of liquid phase analysis of Georgian wines which was carried out by capillary gas chromatography during complete overcondensation of the system by heating vacuum. Study of wines and control of technological processes required direct analysis of products which is complicated due to the contamination of chromatographic column. To acoid this it is necessary either set protective column or release it form nonvolatile components by the sample overcondensation of the sample.
Key words: chromatography, liquid phase.
I. Ninoshvili, Sh. Shatirishvili
Determination of Free Amino Acid Profile by Highly Efficient Method of Liquid Chromatography
Presented by Member of the Academy T. Andronikashvili, March 1, 1999
Abstract. We determined free amino acid profile in six varienties of Georgian wines by highly efficient method of liquid chromatography. To raise detection level of fluorescence detector precolumn derivatization was performed for which combined procedure of reaction with OPA by addition of FMOCCI was used in order to determine primary and secondary amino acids.
Key words: buffer solution, sorbent, amino acids.
N. Iashvili, E. Gelashvili, G. Gamziani, M. Gverdtsiteli
Theoretical Study of some Thiirances within the Scope of Quasi-ANB-Matrices Method
Presented by Corr. Member of the Academy L. Khananashvili, December 7, 1998
Abstract. Theoretical investigations of some thiiranes were carried out within the scope of quasi-ANB-matrices method.
Key words: thiiranes, quasi-ANB-matrices.
Member of the Academy L. Khananashvili, E. Markarashvili, M. Gverdtsiteli, I. Kubaneishvili, N. Tsomaia, Ts. Vardosanidze, D. Girgvliani
Theoretical Investigation of Thienyl-containing Organocyclosiloxanes within the Scope of Quasi-ANB-matrices Method
Presented November 30, 1998
Abstract. Theoretical investigation of thienyl-containing organocyclosiloxanes and reaction of their synthesis were carried out within the scope of quasi-ANB-matrices method.
Key words: thienyl, organocyclosiloxanes, quasi-ANB-matrices method.
M. Trapaidze, N. Machidze, Sh. Samsoniya
Convertions of 1,5-diaminonaphthalene
Presented by Corr. Member of the Academy L. Khananashvili, July 6, 1998
Abstract. By converting of 1,5-naphthalendihydrazine the corresponding tetramethylsubstituted indolo-[7,6-g]-indole and octahydracarbozolo-[3,2-c]-carbazole were obtained. The reactions of N,N benzylation were studied.
Key words: naphthalendihydrazine, indoloindole, carbazolocarbazole, indolization, benzylation.
G. Papava, K. Ebralidze, E. Gugunaca, K. Papaca
Amidoaldehyde Oligomers for Obtaining Multicomponent Pelleted Polymer Compositions of Wheat Seed material
Presented by Member of the Academy T. Andronikashvili, July 26, 1999
Abstract. Amidoaldehyde oligomers have been used as matrices to carry out the pelleting-capsulating process simultaneously. In the presence of a catalyst they undergo structurization and make fixation of drajee components. The influence of different factors on oligomers formulation is studied and optimal conditions for oligomers formation are established.
Key words: amidoaldehyde oligomers, multicomponent pelleted polymer compositions.
L. Amiranashvili, N. Menshova, N. Suvorov
Tigogenene-Based Synthesis of b-hydroxy- and 3a-methoxy-17-asa-D-homoandrostanes
Presented by Member of the Academy E. Kemertelidze, December 7, 1998
Abstract. On the basis of local vegatable raw material-tigogenine - the new derivatives of D-homo-androstane line - 3b-hydroxy- and 3a-methoxy-17-asa-D-homoandrostanes have been synthesized with an aim to study influence of the D-ring transformation on the anti-arrhythmic activity, as compared to 5a-androstane line derivatives.
Key words:steroids, synthesis, pharmacologiac activity.
K. Mulkijanyan, G. Abuladze
Antiexudative Action of Steroid Glycosides’ Preparation Ruscoponin from Ruscus ponticus
Presented by Member of the Academy E. Kemertelidze, December 14, 1998
Abstract. Antixudative action of Ruscoponin - preparation containing steroid glycosides from underground parts of Ruscus ponticus G. Wor has been studied using thermal inflammation of mice rectum model. It is suggested that antiexudative action of Ruscoponin is determined by its phlebodynamic properties.
Key words: aintiinflammatory, antiexudarive, phlebodynamic properties, steroid glycosides, sodium fluorescein, Evans blue, Ruscus ponticus.
Member of the Academy Ts. Mirtkhulava
On the Aging of Dams and the Methods of its Prediction
Presented November 30, 1998
Abstract. In this paper we describe the process of aging and failure of dams, using mathematical methods of demography and the apparatus of the reliability theory. Analytical dependencies are presented, enabling approximate prediction of the onset and specificities of the course of aging and its impact on the longevity of dams and other structures.
Key words: aging, dams, breakdown.
Rheological Properies of Water-Propellant Mixture
Presented by Member of the Academy On. Natishvili, February 22, 1999
Abstract. The result of experimental invesitagion are presented concerning the determination of rheologic parameters of water-propellant mixture: the shearing stress, original substitution tension and plastic density coefficient dependence on mixture volume deformation and deformation velocity. The experiments have been carried out according to the mathematical modelling.
Key words: water-propellant mixture.
Zones of Collectors and Oil-Gas Accumulation in Mesozoic-Cenozoic Complexes of the Western Georgia
Presented by Member of the Academy I. Gamkrelidze, May 24, 1999
Abstract. Taking as a basis new criteria in particular petrophysical and petrochemical investigations, petroleum-containing units and collector zones in Mesozoic-Cenozoic sediments of Western Georgia are separated and suitable recommendation are given.
Key words: Western Georgia, Oil-gas collectors, petrophysical, petrochemical investigations.
Corr. Member of the Academy I. Gudushauri, M. Kalabegashvili
On Solving the Geometrically Nonlinear Problems while Calculating Rectangular Plates Bending
Abstract. We consider the problem of calculation of geometrically nonlinear rectangular plates by means of ordinary differential equations. The way of successive approximations is proposed, which gices possibility to consider great bending of plates and their middle surface deformations.
Key words: geometrically nonlinear rectangular plates, bend.
MECHINE BUILDING SCIENCE
M. Iadze, A. Mylnikov, R. Partskhaladze
Some Algorithms of Mobile Robots Terminal Control
Presented by Member of the Academy R. Adamia, December 28, 1998
Abstract. The simple algorithms of mobile robots final postion control are given. These algorithms are based on the conception of proportionality of controlable and uncontrolable forces for acceleration of mobile robots. These algorithms make possible to create adaptice system to control final position of moving robots.
Key words: mobile robots, final position, boundary problem, adaptive control system.
MACHINE BUILDING SCIENCE
Stay Cableway Cable System Numerical Study with Computer
Presented by Corr. Member of the Academy L. Japaridze, Deceber 14, 1998
Abstract. The article presents the results of stay cableway (“Aerobus” by G. Mueller) and the structures perfected by the author of cable system numerical study, carried out on a personal computer, with corresponding graphucal characteristics.
Key words: stay cableway, hanger, span, sag.
MACHINE BUILDING SCIENCE
Determination of Hydromechanical Force during Immersion of Cylindrical Body into Vertical Tube under Turbulent Motion of Rising Fluid Flow
Presented by Corr. Member of the Academy I. Gudushauri, May 5, 1999
Abstract. Determination of hydromechanical friction on the surface of porous pump plunger under turbulent motion of rising flow is given. The problem is solved by means of exponential law of fluid velocity distribution.
Key words: fluid flow, plunger, immersion.
AUTOMATIC CONTROL AND COMPUTER ENGINEERIGN
Multisoliton Discrete-Time Functions
Presented by Member of the Academy V. Chichinadze, July 26, 1999
Abstract. Orthogonal systems constructed on the basis of the whole rational numbers are used. Multisoliton discrete-time functions are obtained on the basis of these systems. The examples of multisoliton discrete functions both for odd and even numbers are constructed.
Key words: orthogonal, vector-function, multisolitons.
Pareto Set Formation Algorithm for Minimal Cost Network
Presented by Member of the Academy M. Salukvadze, November 30, 1998
Abstract. The problem of finding information transmission net is discussed in the paper. For this purpose the net is represented by tree-like graph having one root and n nodes. All possible graph sets are discussed as the set of alternatives. The algorithm, which finds Pareto set from the given set is presented. Pareto sets contain all those alternatives each of what is a graph of minimal value.
Key words: tree-like graph, alternative, Pareto, vector criterion, algorithm.
Vector Optimization of Border Irrigation
Presented by Member of the Academy Ts. Mirtskhoulava, February 15, 1999
Abstract. The method of border irrigation simulation and optimization is presented. Choice of control parameters cmes from maximization of several criteria.
Key words: border irrigation, vector optimization.
A. Tsitsvidze, I. Grigolia
Transbiotic Interaction of Local and Introduced Plants
Presented by Member of the Academy G. Gigauri, February 22, 1999
Abstract. Biological incompatibility between the local and introduced woody plants in decorative parks of Georgia causes competition for nutritious resources, expansion and replacement of species. Competition for water is especially aggravated in droughty periods, when plant compositions begin to destroy. Xerophytes supplant plants of other biological groups from phytocenoses.
Key words: competition, allelopathy, espansion, biological incompatibility, succession, replacement of species.
N. Zazanashvili, R. Gagnidze, Corr. Member of the Academy G. Nakhutsrishvili
Small-Scale Mapping of High Mountain Vegetation of Georgia
Presented November 9, 1998
Abstract. In the framework of governmental project “Complex investigation and mapping of natural resources of Georgia employing cosmic photo-information” a new vegetation map of Georgia (scale 1:500 000) has been prepared (presently, because of financial restraints publishing of the map is cancelled). Due to the new typological-regional approach high mountains are represented more precisely on the new map in contrast with previous vegetation maps of Georgia.
Key words: subalpine, subnival vegetation, alpine mats, grasslands, woodlands, tall herbaceous vegetation.
Sh. Chanishvili, T. Barblishvili, M. Dolidze, E. Giorgobiani, G. Badridze
Effect of Sink Demand on Photosynthesis, Transport and Distribution of Photoassimilates in Grapevine
Presented by Corr. Member of the Academy N. Nutsubidze, December 21, 1998
Abstract. The effect of sink (shoot apex, cluster or both of them) removal on source photosynthesis intensity, photoassimilates’ transport and distribution in grapevine shoot (Vitis vinifera L., var “Rkatsiteli”), in berry set and berry intensive growth phases was studied. Also the specific weight of leaves and starch accumulation in leaves was investigated.
It was established that the intensity of photosynthesis decreased in all experimental variants especially while removing both sinks. In berry set phase the removal of top, as of stronger sink, had more influence on transport and changed it significantly. In berry intensive growth phase, when the cluster is the main consumer, its removal increased the upward transport. While studying leaf specific weight and starch content, it was revealed, that in berry set phase the shoot apex removal caused leaf specific weight and starch content increase. In berry intensive growth phase leaf specific weight and starch content increased in leaves of that zone, which was closer to removed sink.
Key words: sink, source, photosynthesis, transport of photoassimilates, specific weight, starch, grapevine.
G. Badridze, M. Dolidze, N. Janukashvili, Sh. Chanishvili
Additional Ultraviolet Radiation influence on Photosynthesis and 14C distribution Among Photoassimilates
Presented by Member of the Academy G. Sanadze, November 16, 1998
Abstract. Three species of herbaceous plants: Glycine hispida, Max., Calendula officinalis, L., Linum usitatissimum L. were irradiated with additionalultraviolet (UV) source, using the balb DPT-400. High intensity irradiation stimulated photosynthesis in soybean (“A sectio 2200, “C” section 186 J.m-2), while middle (“A”-1000, “C”-60 J.m-2) and low (“A”-204, “C”-20 J.m-2) intensities-in allplants did. The high level of 14C incorporation in carbohydrates was established, espesially using low intensity of radiation. Biosynthesis of glucose and fructose increased. Simultaneously with the increase of photosynthesis, middle intensity of radiation stimulated the synthesis of amino acids (soybean, lint), especially of alanine. Among the organic acids biosynthesis of oxalic and malic acids was high.
Key words:ultraviolet radiation, photosynthesis, photoassimilates, soybean, calendula, lint.
GENETICS AND SELECTION
J. Kapanadze, Sh. Sharia, R. Goguadze
Basal Number of Chromosomes in Persimmon Genus
Presented by Corr. Member of the Academy D. Jokhadze, June 4, 1999
Abstract. Three assemblies of bivalents are produced in diploid forms of persimmon and in each assembly five bivalents are associated. Diploids produce pollen grains containing n 15 and n 5 chromosomes. In tetraploid forms six assmeblies of bivalents are produced and in each assembly five bivalent are associated. Tetraploids produce pollen grains. They contain n 30, n 15 and n 5 chromosomes. Nine assemblies of bivalents are produced in hexaploid forms and in each assembly five bivalents are associated. Hexaploids produce pollen grains containing n 45, n 15 and n 5 chromosomes. Five-chromosome pollen grains formation shows that the basal chromosome number of persimmon is five.
Key words: persimmon (Diospyros), basal chromosome number.
GENETIC AND SELECTION
T. Jokhadze, N. Dvalishvili, N. Bablishvili, T. Lezhava
Study of Genetic Activity of Nickel Ions in Different Model Systems
Presented by Corr. Member of the Academy G. Tumanishvili, November 16, 1998
Abstract. The effect of nickel inorganic salts on frequency of chromosome aberration and acrocentric association has been studied in short-term and in vitro aged cultures of human limphocytes. Nickel chlorate in concentrations 10-4 and 10-5 M caused a significant increase of chromosome aberration level and dose-dependent relation has been observed. The damaging effect of nickel salts was more intensive in long-term lymphocyte cultures in comparison with 72 h cultures. In the both studied systems nickel chlorate caused decreasing of acrocentric chromosome association levels.
Key words:chromosome aberration.
HUMAN AND ANIMAL PHYSIOLOGY
S. Zhuruli, Z. Nanobashvili
Thalamic Reticular Nucleus Neurons’ Reactions on the fainful Stimulation
Presented by Member of the Academy T. Oniani, December 28, 1998
Abstract. In the thalamic reticular nucleus (TRN) the neurons have been recorded, which respond to nociceptive and non-nociceptive stimuli. The TRN ceurons, generally, are of the convergent type but some neurons respond to the painful stimuli only. It is suggested that the TRN participates in regulation of the nociceptive impulses’ transmission.
Key words: thalamic retcular nucleus, neuron, pain, cat.
HUMAN AND ANIMAL PHYSIOLOGY
M. Koridze, M. Kavkasidze, M. Barbakadze
Effect of Stress on the Sleep-Waking Cycle
Presented by Member of the Academy T. Oniani, June 17, 1999
Abstract. Effect of the swimming-induced stress (SS) on the sleep-waking cycle (SWC) was studied in chronic rats. It was shown that the prior SS evokes prolongation of the wakefulness and decrease of the sleep. Administration of diazepam following the SS resulted in reduction of the stress-induced wakefulness and increase of the sleep phases.
Key words: wakefulness, swimming-induced stress, slow-wave sleep, paradoxical sleep, diazeparm, rats.
HUMAN AND ANIMAL PHYSIOLOGY
N. Doreulee, M. Datunashvili, Member of the Academy T. Ioseliani, H. Haas
A Role of Endothelial NO Synthase in Mossy Fiber Long-Term Potentiation in the Hippocampus
Presented June 21, 1999
Abstract. A roel of endothelial NO synthase (eNOS) in mossy fiber long-term potentiation (LTP) was tested on slices from mice, where eNOS was genetically disrupted. It was found that in the eNOS knock-out mice the non-NMDA dependent LTP induced by tetanic stimulation is markedly reduced. However LTP was normal in hippocampal slices of wild-type mice after N-nitro-L-Arginine (NL-Arg., an inhibitor of NOS) application. This result suggest that eNOS is not directly incolved in generation of LTP, but eNOS deficit during development affect on the system, which is responsible for the mossy fiber LTP.
Key words: Hippocampus, mossy-fiber LTP, NO, NL-Arg.
HUMAN AND ANIMAL PHYSIOLOGY
Ingluence of Functional Exmlusion of the Thalamic Reticular Nucleus on the Cats’ Conditiioned Behavior
Presented by Member of the Academy T. Oniani, January 24, 1999
Abstract. Influence of electrolytic lesion of the thalamic reticular nucleus (TRN) on the spatial discrimination learning was investigated in cats. It was shown that following the TRN ablation the spatial auditory discrimination was significantly deteriorated, which should be attributed to suppression of the ingibitory processes.
Key words: thalamic reticular nucleus, conditioning, spatial learning, inhibition, cats.
HUMAN AND ANIMAL PHYSIOLOGY
Electrophysiological Investigation of the Input from Amygdaliod Complex to the Posterior Sylvian Gyrus
Presented by Corr. Member of the Academy V. Mosidze, January 25, 1998
Abstract. Responses of single units of posterior sylvian gyrus (PGS) to stimulation of the amygdaloid complex were recorded in immobilized cats. Following the stimulation 88 (36.88%) responsive units out of a total of 225 units were observed. The pattern of response was minly of excitatory type. Neurones responded ortho-and antidromically, thus confirming the existence of bilateral direct temporo-amygdaloid connections. The highest degree of reactivity of PSG units was found after the stimulation of lateral nucleus. According to the latency three types of responses were revealed: short (3-12 msec), middle (12-22 msec) and long latency (22-85 msec) responses. Short latency group of units was always activated from lateral nucleus. The results lend support to the contention that there is a direct pathway from lateral mucleus of the amygdaloid complex to the PSG.
Key words: posterior sylcain gyrus, amygdaloid complex, unitary response, direct connection lateral nucleus, latensy.
M. Melikishvili, E. Avaliani, N. Svanidze, T. Eristavi, G. Berishvili, G. Mikadze, Member of the Academy M. Zaalishvili
Choosing of Conditions for the Extraction of Nebulin in Native Form from Rabbit Skeletal Muscle
Presented November 3, 1998
Abstract. The experiments for selection of conditions for extraction of native nebulin were carried out. According to our results nebulin dissolves into solutions at low ionic strength with the proteins forming thin filaments. Thus nebulin mist be associated with actin filaments.
Key words: nebulin thin filament, westernbolitting.
B. Oniani, M. Chochua, A. Chogoshvili
Revealing of the Temperature- and Water-Stress Resistant Species of Plants by Delayed Fluorescence Method
Presented by Corr. Member of the Academy N. Aleksidze, July 12, 1999
Abstract. The difference among the studied species of potato according to the temperature-and water-spress resistance was clearly recealed, by means of delayed fluorescence method which was expressed in the change of delayed fluorescence parameters during the stress-factor effects on the electric transport of photosynthetic membrane, permeability and dynamic regulation mechanism. Ca2+-difinency depressively affects the temperature acclimation spacies “Temp” with normal Ca2+ is 460C and that of non-acclimated is 440C. The Ca2+-dificiency decreases heatersistance of the acclimated plant from 460C to 44.50C and that of non-acclimated plant from 440C to 43.50C. By means of delayed fluorescence method it was revealed that Ca2+-defficiency depressive effect on the acclimative and reparative processes is expressed differently in various species of the plant.
Key words:delayed fluorescence, temperature-stress, water stress.
I. Chkhikvishvili, Z. Ramazanov, O. Khachidze
Comparative Chracteristics of some Georgian and Spanish wines According to the Content of Polyphenolic Substances and Antioxidant Activity
Presented by Corr. Member of the Academy N. Nutsubidze, November 30, 1998
Abstract. The content of phenolic substances and their antioxidant activity in Georgian and Spanish red wines was studeid. These two indices were higher in Georgian red wines. Antioxidant activity of Georgian wines was higher than that of pure antioxidants: fluroglucine,b-carotine and ascorbic acid.
Key words:grapevine, polyphenolic compounds, antioxidant activity, gallic acid, (+)- catechin, ascorbic acid, b-carotine, floroglucine.
M. Baramidze, A. Tsereteli
Untraditional Method of Receiving Ethyl Alcohol:Curds Whey Fermentation by Saccharomyces fragilis
Presented by Corr. Member of the Academy M. Gordeziani, October 12, 1998
Abstract. From cultures of genus Saccharonyces, the most perspective strain- Saccharomyces fragilis with the ability of alcohol fermentation from lactose and yeast biomass accumulation in higher fquantites has been selected. Optimum conditions of Saccharomyces fragilis growth (initial pH, age of the sowing material, quantity of the sowing material, period of growth) were stated and nutrient medium was optimized.
Key words: Saccharomyces fragilis, curds whey, ethyl alcohol.
T. Chakhunashvili, D. Kiladze, M. Inasaridze, M. Zodelava
Congenital Heart defects and their Structural-Cytochemical Peculiarities
Presented by Corr. Member of the Academy T. Chanishvili, June 7, 1999
Abstract. Adsorption, the main immune function of erythrocyte is represented as nonuniform by form membrane surface which has a certain value of charge, determining its immune function.
Key words: coarctation, erythrocytes, neutrophils.
C. Chkhubianishvili, I. Malania, M. Kakhadze
The Study of the action of Photostabilized Bacteria to Grape Berry Moth, Lobesia botrana
Presented by Corr. Member of the Academy B.Kurashvili, December, 1998
Abstract. The grape berry moth Lobesia (polychrosis) botrana Den. & Schiff. (Lepidoptera: Tortricidae) is a very important pest of viticulture regions in East Georgia. The entomocidal activity of photostabilized bacterial, Bacillus thuringiensis (Bt) complexes to grape berry moth in laboratory conditions was studied and the results are presented. The Bt-AF complex is detected by the high virulence (92.2-100%). During the ripe phases of grape the use of bacterial formulations is necessary as the safe for men and environment.
Key words: the grape berry moth, Bacillus thuringiensis (Bt), the entomocidal activity.
New Genus of Earhworms Dendrodriloides Gen. Nov (Oligochaera, Lumbricidae)
Presented by Corr. Member of the Academy I. Eliava, December 28, 1998
Abstract. The species of the Eisenia grandis group have been united in a new genus Dendrodriloides gen. nov., its main features being seate arranged in close pairs, tetrahedral genital setae and the locatio of seminal receptacle pores on the dorsal side close to the medial line. A differential diagram of the new taxons has been given.
Key worsds: Dendrodriloides, genital setae, Eisenia, Dendrobanea, genus, Caucasus.
T. Mchedluri, J. Oniani, N. Sakvarelidze, N. Dzneladze, R. Datunashvili
On Bactericidal Properties of the Water Disinfectant Nargosept
Presented by Member of the Academy D. Jokhadze, July 5, 1999
Abstract. Influence of disinfectant Nargosept on the sewage waters’ bacterial content was studied in Tbilisi water purification construction. It was found that nargosept efficiently decreases the number of parhogenic bacteria when administered at 1-2% concentration.
Key worda: sawege waters, decontamination, bacteria, nargosept.
K. Gogoliashvili, M. Iverieli
Determination of Genetic Inclination Role in the etiopathogenesis of Decompensated Caries (DC)
Presented by Corr. Member of the Academy T. Dekanosidze, November 24, 1998
Abstract. Determination of etiology and pathogenesis of carties is very impotant for prophylaxis and treatment. Despite the pathogenetic factors of disease are already established, genetic factors have not been determined until today. On the basis of epidemiological, population, clinical and genealogical research it became possible to study the role of genetic factor in the development of decompensated caries.
Key words: decompensated caries, poplulation frequency, genetic inclination.
A New Conception of Polycystic Ovary Syndrome and New Methods of Infertility Prevention in Girls
Presented by T. Dekanosidze, June 17, 1999
Abstract. We have examined 947 girls with polycystic overy syndrome. A new conception of pathogenetic mechanism of nosology carrying a kind of compromise idea compared with earlier viewpoints has been elaborated. Namely, the increase of L.H. amplitude as well as its throwing frequency and the reduction of endogenous dopamine andb-endorphin effect on the gonadotropin-releasing - hormone inhibition system are considered to be the diagnostic markers of ovary polycystic syndrome. It has been concluded that formation of polycystic ovary syndrome greatly depends on stress-factors effect. Hence, in the treatment of the mentioned disease beseides the up to now approbated methods of hormon-therapy, psychotherapy should be extensively introduced.
Key words:polycystic ovary syndrom, infertility.
Immunologyc Principle of Antibioticotherapy Rationalization during Chromin Staphilodermy
Presented by Corr. Member of the Academy N. Tatishvili, August 23, 1999
Abstract. The problem of etiologic treatment of ehronic staphilodermy are discussed. The method of antibiotic’s choice is eleborated that makes possible to study the character of antibiotic’s action on neutrophil and susceptibility of etiologic agent to the given antibiotic simultaneously. The method helps to improve the rational use of antibioticotherapy.
Key words: antiotic, chronic staphilodermy, etiologic agent, neutrophil.
Fault Idea in Roman and Canon Law
Presented by Corr. Member of The Academy G. Intskirveli, November 30, 1998
Abstract. From the still primitivist conception of the early Roman law to the subjectivism of the (Medieval) Canon penal doctrine the criminal fault was essentially changed in all its apects. However the author does not agree with the assertion that the development of fault idea in this period consisted in the final negation of objectivist dogmata and the establisheing of the strict (absolute subjectivism. As it follows from the research, in Roman as well as Canon law both of them found concurrent expression.
Key words: fault idea, Roman law, Canon law.
N. Kemertelidze, K. Kadagishvili
Colour-Designating Words in English and American Poetry of the XVIII-XXc.c.
Presented by Corr. Member of the Academy M. Andronikashvili, November 2, 1998
Abstract. Functioning of colour-designating words in English and American Poetry is suggested. To understand meaning of these words in most cases the knowledge of macrocontext and extralinguistic factors is necessary.
Key words: colour-designating, macrocontext, extralinguistic factors, connotative meaning, denotative meaning, figurative meaning, trope.
HISTORY OF SCIENCE
N. Bagaturia, A. Dolidze, R. Chagunava
The Methords of Organoleptic Analysis in the “ Chemistry” of King Vakhtang VI
Presented by Member of the Academy T. Andronikashvili, June 7, 1999
Abstract. We present the work of Georgian king Vakhtang VI (1675-1737) “Preparation of Solutions and Chemical Transformations: (or “Chemistry”). The obtained material evidences that the methods of organoleptic analysis produced by sence organs were used for identification of substances.
Key words: “Chemistry” of Vakhtang VI, organoleptic analysis.