volume 163 number 2 March-April



Member of the Academy L. Zhizhiashvili

On some Classical Operators Associated with Multiple
Trigonometric Fourier Series

Presented April 25, 2000

Abstract. The weak type inequality for some maximal operators associated with multiple trigonometric Fourier series is established.

Key words: multiple trigonometric Fourier series and their conjugates, Cesaro means.


G. Oniani

On The Convergence of Fourier-Haar Series with Respect to a Norm

Presented by Member of the Academy L. Zhizhiashvili, April 25, 2000

ABSTRACT. Norms with respect of which Fourier-Haar series of every integrable on unit square function converge almost everywhere are characterized.

Key words: Fourier-Haar series, convergence, norm.

D. Ugulava

On the Saturation Problem for some Convolution Type Operators

Presented by Member of the Academy L. Zhizhiashvili, March 14, 2000

ABSTRACT. The saturation problem in the space Lp(Rn), 1 £ p £ ¥ for some multidimensional operators of convolution type with a radial kernel is studied.

Key words: Lp space, saturation, Fourier transform, Riesz derivative, convolution.


Z. Tediashvili

Uniqueness Theorems in the Inverse Problems of the Potential Theory

Presented by Corr. Member of the Academy R.Bantsuri, March 21, 2000

ABSTRACT. Inverse problems of the potential theory are considered for two-dimensional domains. The uniqueness theorems are proved within specific restrictions for boundaries of the domains and densities of potentials.

Key words: inverse problems, potential theory.


U. Goginava

Uniform Convergence of Cesaro Means of Negative Order of
N-Dimensional Trigonometric Fourier Series

Presented by Member of the Academy L. Zhizhiashvili, May 10, 1999

Abstract. In this paper, we consider the uniform convergence of Cesaro means of negative order of multiple trigonometric Fourier series of f in PBVp.

Key words: uniform summability, trigonometric Fourier series.


L. Zivzivadze

On Conformal and Quasiconformal Transformations of Triply Connected Fields

Presented by Member of the Academy I.Kiguradze, February 22, 2000

Abstract. Conformally and quasiconformally transformed functions have been constructed on the canonical field of concrete type of final triply connected fields using the method of integral equations.

Key werds: conformal, quasiconformal transformation.


N. Chelidze

Some Functions of AC and ACG-Classes

Presented by Member of the Academy L.Zhizhiashvili, March 6, 2000

Abstract. Some functions of two variables, which belong to the classes of AC and ACG-functions are considered.

Key words: AC-functon, ACG-function.


T. Elizbarashvili, N. Khomasuridze, Z. Siradze

Study of Field Intensity Parameters during Explosion of
Lengthened Charges

Presented by Corr. Member of the Academy L.Japaridze, April 4, 2000

ABSTRACT. We have studied the parameters of field intensity in destructed medium during the detonation of lengthened blasting charges. To solve this problem, the direction of detonation wave frontier and its real parameters are taken into account during solution of corresponding boundary problem of statics.

Key words: fragments criteria, blasting explosive.


G. Bolkvadze

Working of Recurrent Algorithms of Dispersive Identification in the Closed-Loop Systems

Presented by Member of the Academy I.Prangishvili, December 21, 1999

Abstract. There is considered working of recurrent algorithms of identification in case, when the identification process for open-loop systems has been finished and we go on to the adaptive control. The conditions, providing convergence of identification algorithm with enough high speed and finishing the identification process are found.

Key words: nonlinear dynamic object of Hammerstain class, recurrent algorithms, closed-loop system, convergence.


N. Archvadze, I. Beridze, M. Pkhovelishvili, I. Kokrashvili

The Possibilities to Represent Georgian Language in Windows System

Presented by Member of the Academy V. Chavchanidze, February 29, 2000

Abstract. It is very difficult to write "Georgian" windows application, as Windows system has no Georgian National Language Support (NLS). To solve this problem Windows programmer has to write a lot of codes during creation of Self-Teaching Systems 1.0 (abbr. "MKAS 1.0" in Georgian). We have to write several classes on Visual C++ to apply application support of Georgian NLS.

Key words: Windows system, Georgian interfaces.


T. Butkhuzi, M. Sharvashidze, G. Natsvlishvili, Kh. Gelovani, L. Gogebashvili,
L. Trapaidze, Z. Kuchukashvili

Current Passage Mechanisms of Structures Obtained on the Basis of ZnSe Single Crystals

Presented by Member of the Academy R. Salukvadze, March 7, 2000

Abstract. The In-ZnSe-ZnO-Au structures of three types obtained by the method of radical - beam epitaxy at temperatures T = 300-3500C, T = 500-5500C, T = 700-7500C, respectively have been investigated.

Volt-ampere and volt-farad characteristics of these structures are studied. The different kinds of the injection current passage mechanism were revealed. The conditions of the transition from MIS- structures to p-n-junction are determined; bluish emission in p-n-junction region has been obtained only in the structures of III- type; the surface zinc oxide layer of p-type conductivity acts as injection contact with ZnSe layer of p-type conductivity.

Key words: radical-beam epitaxy, injection, p-n junction.


D. Garibashvili

The Maximum Likelihood Method for Determination of Inelastic Interaction Cross-Sections of Elementary Particles with Nuclei of the Ionization Calorimeter Absorber

Presented by Member of the Academy N.Amaglobeli, November 28, 2000

ABSTRACT. The Maximum Likelihood Method that can be used for determination of inelastic interaction cross-sections of elementary particles with nuclei of absorbers of the ionization calorimeters in the accelerator experiments and in experiments with cosmic rays is described.

Key words: Maximum Likelihood Method, calorimeter, cross-section


G. Ghvedashvili, R. Zaridze, K.Tavzarashvili, A. Bijamov, I. Chelidze, D.Kakulia

Numerical Simulation of Metallic Antenna Covered with Dielectric Layer

Presented by Corr. Member of the Academy T. Sanadze, April 1, 2001

Abstract. Structure of small metallic antenna for Personal Communications Systems covered with high permitivity dielectric layer is presented in this paper. This is a drop-shaped antenna which is supposed to have the wide band radiation characteristics due to its geometry and special structure. The dielectric layer helps to keep the size of antenna small. In order to avoid undesired increase of Q-factor due to this layer its thickness is kept as small as possible. The structure was numerically simulated using the method of auxiliary sources (MAS). The field distributions for particular frequencies are presented together with frequency response of investigated structure.

Key words: antenna, radiation, match, numerical methods.


Z. Kachlishvili, N. Metreveli

On Reliability of Active Elements Working in Regime of Negative Differential Conductivity

Presented by Corr. Member of the Academy A. Khelashvili, December 28, 2000

Abstract. We have evidently calculated field dependence of free electrons' concentration under the existence of Coulomb barrier in approximation of quasi-elastic scattering in crossed electric and magnetic fields when effective cross-section of the capture along with Zomerfeld multiplier exponentially depends on the energy of electron tunneled through the barrier. The influence of this exponential multiplier and magnetic field on the electric field corresponding to the minimum of free electrons concentration are calculated. For rising of active elements' reliability it is advisable to work in relatively weak electric field.

Key words: quasi-elastic scattering, capture negative differential conductivity.


B. Maisuradze

Automatic Regulation of the Generator Excitation by Means of a Computer

Presented by Member of the Academy N. Amaglobeli, January 22, 2001

Abstract. The principle of automatic regulation of the generator excitation in hydropower stations is considered and a block-scheme of such a device is presented in the paper. It is more correct, quick and economic and its principle of work is more simple in comparison with the existing one.

Key words: generator, current, excitation, computer, regulation.


I. Metskhvarishvili, N. Kekelidze, M. Metskhvarishvili

Investigation of Critical Current Density in Bi-based Ceramic High-Temperature Superconductors

Presented by Corr. Member of the Academy T.Sanadze, February 16,2000


ABSTRACT. To investigate penetration of low magnetic fields within the high-temperature superconductor ceramic the method of high harmonics is used. Given experimental results are explained by the modal dependencies between the value of critical current density and the magnetic induction B: .

Key words: Bi-based ceramic, low magnetic fields, high harmonics, critical current density.


A. Gerasimov, N. Gochaleishvili, Z. Samadashvili, Z. Bokhochadze, M. Vepkhvadze,
E. Maziashvili

On the Mechanism of Self-Diffusion in Semiconductors of AIII BV Type

Presented by Corr. Member of the Academy T. Sanadze, August 15, 2000

Abstract. Self-diffusion in AIIIBV -type semiconductors has been investigated and on the basis of a new mechanism of diffusion the earlier inexplicable experimental facts have been explained. By means of this mechanism the elementary migratory act is explained by the change of potential energy of chemical bond of migrating atom with another atoms independently of the way of change (light, injection, temperature).

Experimental data satisfactorily coincide with the temperature dependences of self-diffusion coefficients calculated by means of this mechanism.

Key words: self-diffusion coefficient, antibonding quasiparticles (AQP), electronegativity, effective potential.


T. Matcharashvili, Corr. Member of the Academy T. Chelidze, G. Melikadze

Impact of Nonperiodic Components in Dynamics of Water Level Variations in Boreholes

Presented February 20, 2001

Abstract. In present study dynamic complexity of water level variations has been analysed. Dependence of dynamics on the presence of periodic components in considered data records (time series) was investigated. Modern tools of time series analysis such as Lempel-Ziv complexity measure (LZC) and singular value decomposition (SVD) technique have been used. Values of LZC of original and SVD reconstructed water level records before and after Spitak and Racha earthquakes were analysed.

It was shown that dynamic complexity of water level variations is caused by nonperiodic components of time series and is insensitive to the exclusion of periodical influences corresponding to the three main principal components.

Key words: dynamics, water level variations, complexity measure.

General and Inorganic Chemistry

Corr. Member of the Academy A. Shvelashvili, N. Mestiashvili, Z. Beshkenadze,
M. Tavberidze, L. Gogua, N. Zhorzholiani, T. Tsutsunava

Heteronuclear Citrates of MeI MeIIL·nH2O Type

Presented by Member of the Academy G. Tsintsadze, April 18. 2000

Abstract. We have established conditions of synthesis and synthesized compounds with general formulae Mg·MeIIL·nH2O and Mn ·MeII L·nH2O [ MeII – Mn, Zn, Co, Fe, Cu, Ni; L - citrate ion; n=2-4]. Their individuality is established using microelemental analysis and measurements of melting temperature. Thermographic analysis is carried out. By inclusion of biostimulator, composed of the synthesized compounds in poultry nutrition as an addition, the possibility of its use and the optimal doses are established.

Key words: heteronuclear compounds, coordination compounds, citric acid, premix, biostimulator.

Corr. Member of the Academy A. Shvelashvili , E. Zedelashvili, O. Svanidze,
M. Meladze

The Study of Complexformation of 1-aminoadamantane in
Aqueous Solutions

Presented December 28, 1999

Abstract. Complexformation in the system Ni(NO3)2 -1-aminoadamntane-H2O has been studied by the spectrophotometric and pH-metric methods. The stability constants and formation function have been calculated and it is shown that three 1-aminoadamantane molecules are coordinated with metal.

Key words: ligand, coordination, stability constant, formation function, titration.


R. Kvaratskhelia, E. Kvaratskhelia

Study of Electrochemical Deiodination of Iodoacetic Acid at the Solid Electrodes

Presented by Corr. Member of the Academy J.Japaridze, April 24, 2000

ABSTRACT. The voltammetry of iodoacetic acid at the electrodes from Pt, Cu, Cd, Ta and alloys of Cd with Sn, Hg, In, Ni, Pb, Ag, Cu and Cu-Hg in various aqueous solutions has been studied. The main kinetic parameters of the iodoacetic acid deiodination process have been determined. The fact of the rate decrease of the dehalogenation reactions in a series: ClCH2COOH<BrCH2COOH<ICH2COOH has been explained.

Key words: iodoacetic acid, voltammetry, wave, electrode, reduction.

Organic Chemistry

G. Kvartskhava, R. Chedia, L. Dolidze, A. Dolidze

Utilization of Liquid Propellant

Presented by Member of the Academy T.Andronikashvili, December 19, 2000

Abstract. Xylidine fraction has been isolated from liquid propellant components (samin) on the basis of which the compounds with juvenoidal, anesthetic, pesticide and hydrogen peroxide stabilizing abilities are synthesized. Acetylxylidine mixture dependence on temperature and pH and H2O2 concentration has been studied. The six-month experiments show that acetylxylidines like analogical compounds, can be used as stabilizers of 3.3-35.5% solutions.

Key words: propellant, xylidine, utilization, hydrogen peroxide stabilizer.

Automatic Control and Computer Engineering

V. Mdzinarishvili

Multidimensional Antagonistic Dynamic Models

Presented by Member of the Academy V.Chichinadze, October 19, 1999

Abstract. We present an equation of two antagonistic functions. The system of multidimensional differential equations of three types is considered: parallel-connected, connected in succession and mixed connected.

Key words: multidimensional, differential, antagonistic, equation, model.


R. Svanidze, K.Mestiashvili

On the Problem of Computation of Energy Spectra of some Linear Codes of Digital Optical Fibre Systems of Transmission

Presented by Corr. Member of the Academy I.Prangishvili, December 31, 2000

Abstract. Easily realized expression for energy spectra computation of linear codes of digital optical fibre systems of transmission is obtained.

Key words: digital optical fibre systems, transmission.


N. Machitadze, M. Tvalchrelidze, V. Gvakharia

Particularities of Geochemical Zones Formation in the Sediments of South-Eastern Sector of the Black Sea Georgia

Presented by Corr. Member of the Academiy G. Zaridze, March 4, 2000

Abstract. Formation of chemical composition of the Black Sea Georgian sector shelf sediments depends on solid drift falling into the sea and their transport by alongshore and bottom currents. Different geochemical zones have been distinguished on the basis of bottom sediments chemical analyses. The chemical compositions of bottom sediments of Batumi and Poti seaport aquatorias are studied.

Key words: the Black Sea, sediments, chemical elements, feeding provinces, terrigene.


N. Kiknadze

The Effect of Doses of Phosphoric Fertilizers on Qualitative Indices of Winter Wheat

Presented by Corr.Member of the Academy T. Urushadze, February 20, 2000

Abstract. The study of increasing doses of phosphorus on qualitative indices of winter wheat variety "Bezostaia" in conditions of brown carbonated soils proves positive influence of phosphates. Directly proportional correlation between the increase of fertilizing phosphorus and quantity of raw protein, vegetable gluten, starch, proteins, weight of 1000 grains is marked.

Key words: brown carbonate soils, raw protein.

Plant Growing

M. Kvachantiradze, E. Tvalchrelidze, M. Kotetishvili, T. Tsitsishvili

The Photostabilization of Bacillus Thuringiensis using Clinoptilolite as uv Protectant

Presented by Corr. Member of the Academy B.Kurashvili, January 11, 2000

ABSTRACT. Inadequate stability of B.thuringiensis formulations under field conditions and mainly under solar irradiation limits their full-scale usage in the integrated pest management. Clinoptilolite used in the complex with B.thuringiensis protects this formulation from UV-radiation effect and raises the residual insecticidal activity of the sample of Bt-clinoptilolite complex after sunlight irradiation compared with the sample of unprotected B.thuringiensis (83.3% and 63.3% respectively after 36-hour irradiation against larvae of Ephestia (Anagasta) kuhniella Zell).

Key words: Bacillus thuringiensis, flour moth (Ephestia (Anagasta) kuehniella); delta-endotoxin, photostabilization, insecticidal activity, resudual insecticidal actrivity.

Plant Physiology

N. Janukashvili, N. Kacharava, G. Badridze, Sh.Chanishvili

Ultraviolet Radiation Influence on the Content of Antioxidants in Leaves of Two Forms of Castorbean

Presented by Corr. Member of the Academy D. Ugrekhelidze, February 22, 2000

Abstract. In two forms of castorbean Ricinus coommunis L., with red and green leaves the influence of different intensities of ultraviolet radiation (UV) on the content of antioxidants: carotenoids, glutathione, ascorbic acid and tocopherol has been studied. Measurements were done in flowering and fruit bearing phases. The balb DPT-400 served as an additional source of UV radiation.

Stimulation of carotenoids synthesis in both phases of vegetation was mentioned. Also the content of glutathione + ascorbic acid increased in all the experimental variants. The amount of tocopherol changed diversely in red and green forms.

The used intensities of UV radiation, especially the middle dose was of stimulative effect for all studied antioxidants.The investigated forms of plant differed in content and changing characteristics of studied substances, which may be partly explained by high level of anthocyans in red form of castorbean.

Key words: UV radiation, carotenoids, glutathione, ascorbic acid, tocopherol, red and green leaf castorbean.


G. Badridze, E. Giorgobiani, M. Dolidze, M. Kikvidze, Sh. Chanishvili

Ultraviolet Radiation Influence on Leaf Photosynthetic Capacity, Starch Content and Nitrate Reductase Activity

Presented by Corr. Member of the Academy N. Nutsubidze, March 28, 2000

Abstract. Influence of high ("A" section - 2200, "C" section - 186 J.m-2 ), middle("A"- 1000, "C"-60 J.m-2) and low("A"-204, "C"-20 J.m-2) intensities of additional ultraviolet(UV) radiation on leaves photosynthetic activity, starch content, nitrate reductase activity, also 14C incorporation in organic substances, stomatal conductivity has been studied in: Sesamum indicum L., Zinnia elegans L., Ricinus communis L.(red and green leaf forms). The balb DPT-400 served as a source of additional radiation. It was established, that the used intensities of radiation inhibited photosynthesis in zinnia and sesame, while in castorbean were of stimulative effect. At the same time radiation stimulated stomatal conductivity in castorbean. Nitrate reductase activity increased in all experimental variants, especially using the middle intensities of radiation. Starch content in experimental plants sharply decreased, with the exception of red castorbean.

Key words: photosynthesis, starch, nitrate reductase, stomatal conductivity, UV radiation.


N. Kacharava, N. Chkhubianishvili, L. Kobakhidze, N. Datiashvili, G. Badridze

To the Study of Adaptation of Medicinal Plants to Ultraviolet Radiation

Presented by Corr. Member of the Academy N. Nutsubidze, March 21, 2000

Abstract. Influence of ultraviolet (UV) radiation on medicinal plants(Calendula officinalis L., Sinapis arvensis L., Linum usitatissimum L., Sesamum indicum L., Ricinus communis L (red and green leaf forms) growth, respiration, plastid pigments and protein content, peroxidase and catalase activities has been studied. It was established, that the additional doses of middle(section "A"-1000, section "C"-60, PhAR-9500 J.m-2) and low ("A"-204, "C"-20, PhAR-1900 J.m-2) intensity irradiation promoted developing and fresh weight increase and decrease of respiration, peroxidase and catalase activities. According to the effect of irradiation the intraspecific differences between two forms of castorbean were revealed.This supports the supposition on the specious and intraspecific diversity of adaptive mechanisms to UV radiation.

Key words: UV radiation, respiration, plastid pigments, protein, peroxidase, catalase, medicinal plants

Genetics and Selection

G. Dumbadze

Polyembryony in the Generation of Mandarin Seedy Mutants

Presented by Corr. Member of the Academy P.Naskidashvili, August 23 ,1999

ABSTRACT. Polyembryony or polyrudimentarism occurs in all kinds of Citrus fluctuating from 0 to 100%. Seedy mutants produced under the influence of nitrosoethylurea upon the mandarin seeds as well as C.reticulata modifications are characterized with high percentage of polyrudimentarism (0-10.4). Polyembrionic forms (10341, 1774) are produced under the influence of mutagene. They either have not at all ator possess small quantity of additional embryos. These peculiarities evidence mutational displacement from balanced heritage of mandarin Citrus unschiu.

Key words: polyembryony, Citrus unschiu.

Genetics and Selection

I. Kapanadze, Sh. Sharia

Some Peculiarities of Meiosis in Diospyros lotus L. Seedlings

Presented by Corr. Member of the Academy D. Jokhadze, October 3, 2000

Abstract. The ratio of female, male and hermaphrodite specimens derivation 5:3:1 is evidently distorted in Diospyros lotus L. (2n30). In meiosis one bivalent is encircled by the other fourteen bivalents. Distant contact between the central and peripheral bivalents is distinctly defined. Similar regularity is noted between the peripheral bivalents as well. Three assemblies of chromosomes with five bivalents per assembly are reproduced in phase M2. The monovalents of the central bivalent (sex chromosomes) move to the poles faster or slower than the peripheral monovalents. Sex chromosomes are eliminated in PMC plasm. Out of the sex chromosomes one of them shows fluorescence ability.

Key words: meiosis, bivalent, assembly, fluorescence.

Genetics and Selection

K. Goginashvili, G. Shevardnadze, M. Aslanishvili

Cytogenetic Effect of Nickel and Lead Salts of Allium cepa

Presented by Corr. Member of the Academy D. Jokhadze, March 21, 2000

Abstract. Different cytogenetic dose-dependent effects of nickel and lead salt solutions have been observed in meristematic cells of Allium cepa as a result of their single activity. The combined activity of the solutions caused significant increase of chromosome aberration levels, but mitotic activity of the cells appeared to be decreased.

Key words: Allium cepa, heavy metals, chromosomal aberrations, mitotic activity.

Genetics and Selection

A. Mushkudiani, L. Shoshiashvili, N. Chaganava

Fertility of the Imeruli Sheep under Different Conditions of Lambing

Presented by Corr. Member of the Academy A.Didebulidze, February 16, 2000

Abstract. Fertility of the Imeruli sheep during the pasture lambing and during the artificial lambing was studied.

It was found that the fertility of the sheep was 245.9 percent during the pasture lambing and 158.6 percent during the artificial lambing. The annual meat production per 100 sheep was 329.3 kg for the first case and 1437 kg for the other one.

Key words: fertility, lambing.


K. Chochieva, N. Mamatsashvili, E. Tsagareli

Geological Past of Taxodiaceae Family of Kolkheti

Presented by Corr. Member of the Academy G. Mchedlidze, March 22, 2000

ABSTRACT. The first traces of Taxodiaceae on the territory of Kolkheti floristic region are recorded from early Jurassic (up till now). Concentration of Taxodiaceae families and their longest coexisting period reaches its climax in floristic province of Kolkheti in Pleistocene. In the period of Jurassic to Pleistocene Kolkhida represents natural and inseparable part of paleoareas of this family of conifers.

Key words: Floristic region, paleoflora, spectra, fossils, relict.


K. Chochieva, N. Mamatsashvili, E. Tsagareli

Geological Past of Taxodiaceae Family of Kolkheti

Presented by Corr. Member of the Academy G. Mchedlidze, March 22, 2000

ABSTRACT. The first traces of Taxodiaceae on the territory of Kolkheti floristic region are recorded from early Jurassic (up till now). Concentration of Taxodiaceae families and their longest coexisting period reaches its climax in floristic province of Kolkheti in Pleistocene. In the period of Jurassic to Pleistocene Kolkhida represents natural and inseparable part of paleoareas of this family of conifers.

Key words: Floristic region, paleoflora, spectra, fossils, relict.


R. Kupatadze, K. Kuridze, S. Simonishvili, L. Rusia, A. Abuladze, N. Svanidze,
M. Simonidze, Acad. M. Zaalishvili

Influence of Ionic Strength on the Structure of the Myosin and Actomyosin Complex

Presented February 22, 2000

Abstract. Using the methods of electronic microscopy and limited hydrolysis in the research of actomyosin complex and structure of myosin rod we have established that the ordered structure of myosin and actin changes with the influence of surroundings (pH, ionic strength, temperature), which can affect the expose of the label regions of myosin rod.

Key words: electronic microscopy, myosin rod, limited hydrolysis.


R. Gakhokidze, L. Beriashvili, T. Chigvinadze

Metabolism of Glycine in Plants

Presented by Corr. Member of the Academy N. Nutsubidze, February 22, 2000

Abstract. It has been shown that the carbon of 14CO2 utilized in the light by leaves of soya (Glycine max. L.) and maize (Zea mays L.) seedlings among other compounds incorporated in glycine. Glycine in mentioned plants undergoes complicated multilateral conversions.

Key words: glycine, metabolism, soya (Glycine max. L.), maize (Zea mays L.)


G. Kharebava, T. Garishvili, D. Mikeladze, Corr. Member of the Academy
V. Bakhutashvili

Chromatographic Characterization of Plaferon LB

Presented November 3, 1998

Abstract. Georgian-made antiviral and immunomodulative remedy Plaferon LB was investigated by different chromatographic approaches. Attempts were undertaken to obtain primary biochemical data by HPLC and to scale up prepurification methods for testing on bioactivity in different model systems. To find out purified bioactive substance being of crucial importance, we prepared simplified fractions for further accurate testing.

Key words: placental factors, HPLC, bioactive products.


T. Jariashvili

Some Aspects of Regulation of Na,K-ATPase by

Presented by Member of the Academy T.Oniani, April 25, 2000

ABSTRACT. Glutamate, asparagine, GABA (g-aminobutyric acid), glycine, proline do not influence Na,K-ATPase obtained from rat brain either separately or with specific protein in synaptic cytosol – synaptosomal factor (SF), while Na,K-ATPase activity changes under the influence of noradrenaline, serotonin, dopamine and adrenaline. The latter, in its turn, is regulated by the SF. It is supposed that there are two different mechanisms of neurotransmitters action in synaptic transmission with the participation of Na,K-ATPase, which, in its turn, should be concerned the action of some secondary messengers and without Na,K-ATPase, what may be due to the action of neurotransmitters on ion channels.

Key words: Na,K-ATPase, neurotransmitter (NT), specific proteins regulating Na,K-ATPase in synaptosomal cytosol, synaptosomal factor (SF).


N. Nebieridze, N. Sikharulidze, E. Mitaishvili, A. Koreli

Effects of Galanthamine and Atropine on Short-Term Memory in the Rats

Presented by Member of the Academy T.Ioseliani, March 28, 2000

ABSTRACT. The effects of acetylcholinestherase inhibitor substance (galanthamine) and muscarinic cholinoreceptor blocker (atropine) on the spatial delayed reaction were investigated in the adult Wistar rats. It was found that galanthamine causes improvement of the short-term memory. This action should be due to the cholinergic transmission facilitation, which, in its turn, is involved in the short-term memory mechanisms. Along with this it is possible that galanthamine enhances the rate of anxiety, increases the excitability and facilitates excitation reverberation in the CNS. On the other hand, atropine administration seriously impaired the delayed reactions owing to the blockage of cholinergic receptors and to the other side-effects, which accompany the atropine action.

Key words: short-term memory, acetylcholine, galanthamine, atropine, anxiety, rats


G. Todua

Single Unit Analysis of the Projections from Basolateral Part
of Amygdaloid Complex to Medial Nucleus

Presented by Member of the Academy T.Oniani, March 14, 2000

ABSTRACT. The purpose of this study was to map efferent projections from basolateral part of amygdaloid complex to medial nucleus (MN). Single unit responses were recorded in the MN following electrical stimulation of the basal and lateral nuclei (BN, LN) in unanaesthetized, immobilized cats. The LN stimulation influenced 23 (33.8%) out of the 68 units, whereas to BN stimulation 59 (49.476%) out of 119 units being found. The most effective sites for influencing on MN cells were located in parvicellular part of BN. Following stimulation single cell recordings in the MN showed two basic types of response. The 58% of the cells studied responded with excitation and others showed a suppression of discharge. Latencies to first spike ranged from 16 to 68 msec when the LN was stimulated and from 5.3 to 54 msec when the stimulating electrodes were located in the BN. The possibility of mono- and polysynaptic connections from basolateral amygdala to MN was discussed.

Key words: Amygdaloid complex, basolateral part, basal nucleus, lateral nucleus, unitary response, latency.

Microbiology and Virology

M. Darsavelidze, T. Kratasyuk, Member of the Acadermy T. Chanishvili, T. Suladze,
M. Elizbarashvili

Application of the Phage Titer Increasing Reaction in Detection of P.aeruginosa Microbes

Presented March 21, 2000

ABSTRACT. Applicability of the P.aeruginosa specific phage in phage titer increasing reaction (PTIR) has been established. By means of this method rapid (within 5-18 hours) detection of respective bacteria is possible, even in the presence of other microflora and regardless the concentration of the material under study. Common bacteriological analysis requires no less than 3 days. The PTIR is efficient even in those cases when bacteriological analysis does not reveal and identify the pathogenic agent. With the aim to test the PTIR efficiency total of 70 clinical samples (blood, urine, pus, wash-down from various objects) were investigated. Analysis of the data obtained has shown that the number of positive responses in the PTIR investigations 2-4-times exceeded those obtained by the microbiological examination. Results of investigation allow to recommend the indicator pyocyaneus-bacteriophage as the rapid means for diagnostics of P.aeruginosa.

Key words: bacteria, identification, bacteriophage, phage titer, PTIR method.

Microbiology and Virology

T. Berishvili, D. Pataraya, Ch. Kakhniashvili

The Isolation of Herbicide 2,4-D Destructing Microorganisms of Different Taxonomic Groups from Soils of Georgia

Presented by Member of the Academy G. Kvesitadze, February 1, 2000

Abstract. The present paper is dedicated to the establishment of active strains among the microorganisms isolated from natural substrates and detoxicating the studied xenobiotics. The microorganism strains capable to detoxicate pesticide residues in soil were found. Issuing from the received data the chosen strains can be used purposefully for soil recultivation from pesticide residues.

Key words: pesticides, soil, microorganisms, detoxication.

Microbiology and Virology


D. Pataraya, M. Gurielidze

Biological Properties of Antibiotic Producent Actinomycetes

Presented by Member of the Academy G. Kvesitadze, April 4, 2000

Abstract. Streptomyces sp. 114 strain with high microbial activity was revealed among the studied phytopathogenic fungi affecting actinomycetes-antagonists.

According to morphological, cultural, physiological, biochemical and antagonistic properties it was stated that the given strain is close to the species described by Krassilnikov - Streptomyces levoris Krassilnikov et al., 1960.

Key words: actinomycete- antagonist, biological properties, phytopathogenic fungi, antibiotic compound.

Microbiology and Virology

N. Chanishvili, M. Merabishvili, K. Porchkhidze, G. Natroshvili

The Caucasian Product Matsoni: its Bacterial Composition and Properties

Presented by Member of the Academy T. Chanishvili, February 1, 2000

ABSTRACT. In the 1960s and 1970s when microbial identification was based on traditional microbiology methods Matsoni was equated to Bulgarian yogurt which is composed of Lb. delbrueckii ssp. bulgaricus (i.e Lb. bulgaricus) and St. thermophilus (with the ratio 1:1). Due to modern methodology it was shown that by bacterial composition Caucasian Matsoni remarkably differs from the Bulgarian yogurt. It is composed of Lb. delbrueckii ssp. lactis and St. thermophilus (with the ratio 1:3). Probiotic effect of the endemic Caucasian product Matsoni is determined by Lb. delbrueckii ssp. lactis. According to the preliminary results antagonistic Lb. delbrueckii ssp. lactis produces exogenic inhibitory agent that is active against great variety of bacteria such as pathogenic species of Staphylococcus, Streptococcus, Enterococcus, Ps. aeruginosa, E. coli, Salmonella and yeast like Candida lucitaniae which is a common contaminant of dairy plants.

Key words: lactic acid bacteria, dairy starters, bacterial antagonism.


G. Naskidashvili, N. Aptsiauri, Z. Sikharulidze, K. Natsarishvili

Virulence Structure of the Georgian Population of Puccinia striiformis West f. sp. tritici Eriks

Presented by Corr. Member of the Academy G.Nakhutsrishvili, January 25, 2000

Abstract. The causal agent of wheat yellow rust, Puccinia striiformis West f. sp. tritici Eriks, was developed everywhere in Georgia during 1987-1998. The most wide-spread pathotype is 6EO (83%) with genes for virulence pp6, pp7. The virulence structure of the pathogen in Georgia, Armenia, Azerbaijan were similar. This allows to conclude that the pathogen population in the Transcaucasus is a unit.

Key words: yellow rust, virulence survey.


M. Bregadze

Effect of Constant Magnetic Field on the Organizm of Guinea-Pigs

Presented by Corr. Member of the Academy V. Mosidze April 1, 2000

Abstract. The exposure of 300 E constant magnetic field results in the structural and morphological changes of the peripheral blood and the brain cells in guinea pigs. These deep changes must be due, on the one hand, to the effect of magnetic field directly on the hipothalamo-hypophysic system (causing damage to the blood-forming organs) and on the other hand, to the feedback effect of blood-forming organs on the brain cells.

Key words: constant magnetic field, neuroglia, astrocyte, neurons, hypothalamus, hemispheres, cerebellar cells, erythrocyte, reticulocyte, thrombocyte, leucocyte.


K. Chakhunashvili

Peculiarities of Atherosclerosis Treatment in Georgian Population

Presented by Member of the Academy T.Chanishvili, April 18, 1999

ABSTRACT. We have studied the problems of atherosclerosis treatment within Georgian population. A total of 200 patients were examined. The account of both stage and type of atherosclerosis in due time and activation of ambulatory treatment are necessary for prophylaxis and diagnostics.

Key words: atherosclerosis.


B. Chakhvadze, A. Beridze

Treatment of Endemic Goiter with Lazegrine

Presented by the Member of the Academy T. Chanishvili, March 27, 2000

ABSTRACT. The action of a novel preparation Lazegrine on different forms of goiter was studied. It was established that short-term course of Lazegrine treatment positively affects the patients with hypo- euthyroid goiter, while at the autoimmune diseases of thyroid gland - autoimmune thyroidite (AIT) and at diffuse thyroid goiter (DTG), it has negative action on the course of disease.

Key words: goiter, Lazegrine, thyroid hormones.


M. Labadze

Structural Characteristics of Interneurocytes Space of Spinal
Ganglia and Dog's Anterior Horn

Presented by Member of the Academy T.Chanishvili, October 5, 1999

Abstract. We have studied interneurocyte space of spinal ganglia and anterior horn in dogs from the viewpoint of the density of neurocytes dislocation. The observed ultrastructural parameters of intercellular fissuea in each case of research are almost unchangeable.

Key words: spinal cord, anterior horn.


T. Mchedluri, J. Oniani, N. Sakvarelidze

Bacteriophage as Indicator of Water Reservoirs Pollution

Presented by Corr. Member of the Academy D.Jokhadze, February 8, 2000

ABSTRACT. Investigations have shown that certain bacteriophages are good indicators of the water reservoirs contamination with intestinal pathogenic bacteria.

Key words: enteroviruses, bacteriophage, Colon bacteria, infectious pathologies, dysentery.

Experimental Medicine

K. Barabadze, T, Churadze, M. Papava

Oxidative-Antioxidative System and Neutrophils’ Exotaxis in Children with Relapsing Obstructive Bronchitis

Presented by Member of the Academy N. Javakhishvili, February 27, 2001

ABSTRACT. The state of oxidative-antioxidative system has been studied according to the content of nitric oxide and lithium ions. Their relation with neutrophils’ ability for exotaxis is discussed. The disbalance of oxidative-antioxidative system and disorder of neuroimmune regulation have been established. The positive clinical, antioxidative and immunoprotective effect of the preparation lithium carbonate compared with other antioxidative preparations was marked.

Key words: oxidative-antioxidative system, exocytosis of neutrophils, relapsing obstructive bronch

Experimental Medicine

M. Janiashvili

Investigation of Dynamics of Maximal Rate and Time of Intra-
Ventricular Pressure Increase in Subjects with Hypertension

Presented by Member of the Academy T.Oniani, March 28, 2000

Abstract. Present study is dedicated to the investigation of dynamical aspects of rate and time variation of intra-ventricular pressure increase in healthy persons and patients with hypertension. We have used methods of long range correlation analysis and methods for visualization of complex dynamics. It was shown that according to quantitative statistical differences, there are clear qualitative dynamical differences between variability of considered hemodynamical parameters.

Key words: hemodynamical parameters, hypertension, long range correlations.

Experimental Morphology

I. Jikia, M. Zarkua, G. Gogichadze

Determination of Carcinogenicity on the Basis of the Theory of "Two Synkaryons"

Presented by Member of the Academy N.Javakhishvili, February 29, 2000

Abstract. Those substances and influences, which induce somatic cells fusion (and cell membranes’ perforations) are probably potential oncogenic agents. Positive fusogenic effect (i.e. appearance of two- and polynuclear hetero- and homokaryons) of all known carcinogens with negative control tests, in our opinion, may be confirmed by this mechanism ( fusion) of malignization and also may allow using this method for determination of carcinogenicity of chemical substances.

Key words: carcinogenes, fusion, erythrocytes, electron microscope, homokaryons.

Experimental Medicine

I. Kumaritashvili, U. Gabunia

Some Peculiarities of Laryngeal Cancer in Georgia

Presented by Member of the Academy N.Javakhishvili, October 3, 2000

Abstract. Case histories of 565 patients with laryngeal cancer have been worked out and analyzed. The main risk-factors of the origin of laryngeal cancer were determined.

Key words: cancer, stage of illness, age group, radiation.

Experimental Medicine

A. Khomassuridze, L. Tsertsvadze, L. Khonelidze, Dz. Abuladze

The Choice and Use of Contraceptive Methods

Presented by Corr. Member of the Academy T. Dekanosidze, April 11, 2000

Abstract. The results of our study show that Intra-Uterine-Devices (IUD) are the most spread methods of contraception in Imereti region. The majority of women of reproductive age uses one of the methods of contraception.

Key words: birth regulation, contraception.


I. Bondyrev, G. Lominadze

Levels of our Knowledge and Ignorance and their Ecological Importance

Presented by Member of the Academy Sh. Nadirashvili, April 25, 2000

Abstract. The problem of existing in modern society of unclaimed information which is not transformed into the category of knowledge and ecological consequences of this phenomenon is considered. Multilevel character of knowledge determined by biosocial and ecolandscape factors is defined.

Key words: ecology, information, knowledge, level, population, mutation, socius.


N. Basiladze

Psychology of Relationship between a Man and a Woman
According to V.Sukhomlinsky

Presented by Member of the Academy G. Tsitsishvili, March 6, 2001

Abstract. The question of teaching family planning at school is being discussed. Some views of famous Ukrainian teacher V. A. Sukhomlinsky on the problem of family, marriage, love are presented.

Key words: family, marriage, responsibility, relations.


M. Chikadze

"Universal" Explanation to the Role Concept

Presented by Member of the Academy Sh. Nadirashvili, December 12, 2000

Abstract. The present work is an attempt to find such a definition to the role concept, which could summarize its immensely versatile definitions so that all those definitions would be just and at the same time it would shed light on the hypothesis according to which the ‘role" is a "system unit" in the present day humanities.

Key words: role, status, function, position, role structure.


M. Kereselidze, N. Chikhladze

Economic Methods in the System of Health Care Management

Presented by Corr. Member of the Academy L. Chikava, March 28, 2000

Abstract. The article sets forth important aspects of health care system of transition period in Georgia. During the transition period from administration system to market mechanisms reasonable changes took place in the activities of health care system subjects. It became necessary to establish a new style of economic thinking to make operational new mechanisms and systems of management of health care system. The recommendations on improvement of health care management system in concrete economic conditions are given.

Key words: marketing, health care management.


M. Nanitashvili

To the Problem of Economic Regulation in the Business of Consumer Market Subjects

Presented by Corr-Member of the Academy L. Chikava, March 20, 2001.

Abstract. The paper regards the problem of self-regulation in the business of consumer market subjects. The objective function of a trade company and the methods of planning the activities for sale stimulation in retail trade are considered. A conclusion is drawn that in our conditions conceptual regulations and mechanism reflecting the national peculiarities of transitional period can be used to increase the efficiency of the companies of circulation sphere.

Key words: consumer market, self-regulation, sale stimulation.


L. Gverdtsiteli

Language of the Author, Aspect of Codification

Presented by Member of the Academy G. Tsitsishvili, January 20, 2001

Abstract. Tracing the development of the national languages the author tried to define the role of the individual in the enrichment of his own language. The contribution of the outstanding authors such as A.Pushkin in Russian, Sh.Rustaveli in Georgian, T.Shevchenko in Ukrainian, W.Shakespeare in English is indisputable.

Key words: national, standard language, aurhor's language, lexicography.


I. Ratiani

Conception of Artistic Time and Space in Literature

Presented by Corr. Member of the Academy E. Khintibidze, January 30, 2001

Abstract. A problem of time and space is one of the most actual problems in modern study of art and literature. The aesthetic appearance of an artistic composition is being created on the basis of entirety of time and space, or on the basis of chronotope, which exists in the composition. In our opinion, literature of the 20th century offered peculiar structural and functional transformation of time and space layers.

Key words: artistic time, artistic space, chronotope.


G. Guledani

Egyptian Dilemma after the Six Day War

Presented by Member of the Academy K. Tsereteli, December 7, 1999

Abstract. The article takes analysis of Egyptian president Nasser's ties and attitude towards Middle Eastern peace politics after the 1967 June war.

Key words: Six Day War, peace process, Nasser, Egypt.


N. Rusishvili, I. Maisaia

The Study of Foxtail Millet Culture

Presented by Corr. Member of the Academy O. Lortkipanidze, April 25, 2000

Abstract. Foxtail millet – Setaria mocharica (Alef.). Men. et Er. is one of the oldest cultures on the territory of Georgia. This is confirmed by manuscripts and archaeological data. Archaeological excavations of Ertso Valley reveal newest data about foxtail millet culture (V-VII cc A. D.).

Key words: foxtail millet