MOAMBE
2004
volume 169 number 3
Mathematics
member of the Academy L. ZHIZHIASHVILI
Some Approximate Properties of Cauchy Singular Operator in the Space C
Presented September 16, 2003
ABSTRACT. In the paper certain approximate properties of Cauchy singular operator are established. © 2004 Bull. Georg. Acad. Sci.
Key words: Cauchy singular operator, Hilbert transform.
Mathematics
N. GORGODZE
GLOBAL FORMULAS OF THE VARIATION OF SOLUTION FOR SOME QUASILINEAR NEUTRAL DIFFERENTIAL EQUATIONS WITH THE CONTINUOUS INITIAL CONDITION
Presented by Member of the Academy G. Kharatishvili, September 30, 2003
Abstract. Formulas of the variation of solution are obtained on a whole interval for quasilinear neutral differential equations with the continuous initial condition. The continuous initial condition means that at the initial moment the values of the initial function and the trajectory always coinside. © 2004 Bull. Georg. Acad. Sci.
Key words: neutral differential equation, formulas of the variation of solution.
Mathematics
G. Khimshiashvili
ANALYTIC DISCS IN LOOP SPACES
Presented by Member of the Academy N.Berikashvili, October 21, 2003
ABSTRACT. We discuss almost complex structures on loop spaces of certain types and describe two constructions of analytic discs passing through a given loop. © 2004 Bull. Georg. Acad. Sci.
Key words: loop space, complex structure, analytic disc, solid torus, Lie group, Cauchy-Kovalevskaya theorem.
Mathematics
G. Khimshiashvili
ANALYTIC DISCS IN LOOP SPACES
Presented by Member of the Academy N.Berikashvili, October 21, 2003
ABSTRACT. We discuss almost complex structures on loop spaces of certain types and describe two constructions of analytic discs passing through a given loop. © 2004 Bull. Georg. Acad. Sci.
Key words: loop space, complex structure, analytic disc, solid torus, Lie group, Cauchy-Kovalevskaya theorem.
Mathematics
Z. Tevdoradze
ON HARMONICITY OF PRODUCT OF HARMONIC FORMS
Presented by Member of the Academy N.Berikashvili, October 21, 2003
ABSTRACT. It is well known that even in classical case (on the Riemannian manifolds) the product of harmonic forms is not harmonic form. In this paper we develop the algebraic and analytical mechanisms according to which the reason this is precisely visible for the harmonic forms on Poisson manifolds. As corollary we allocate the class of harmonic forms which is closed with respect to the exterior product. © 2004 Bull. Georg. Acad. Sci.
Key words: Poisson manifold, harmonic form, Poisson connection.
Mathematics
G. Avalishvili, M. Avalishvili
INVESTIGATION OF STATIC HIERARCHIC MODEL FOR ELASTIC SHELLS
Presented by Corr. Member of the Academy R. Bantsuri, October 28, 2003
ABSTRACT. The present paper is devoted to the study of hierarchic model of boundary value problem for elastic shell in curvilinear coordinates. The two-dimensional model of elastic shell with thickness which may vanish on the lateral boundary is constructed and the corresponding boundary value problem is investigated in suitable spaces. The convergence of the sequence of vector-functions restored from the solutions of the reduced two-dimensional problems to the solution of original problem is proved and the rate of convergence is estimated. © 2004 Bull. Georg. Acad. Sci.
Key words: boundary value problems for elastic shells, a-priori error estimation.
Mathematics
V. BUGADZE
ON FOURIER COEFFICIENTS WITH RESPECT TO MULTIPLE HAAR WAVELET
Presented by Member of the Academy L.Zhizhiashvili, November 11, 2003
ABSTRACT. A property of Fourier coefficients with respect to multiple Haar wavelet is established. © 2004 Bull. Georg. Acad. Sci.
Key words: multiple Haar wavelet, Fourier coefficient, composite function.
Mathematics
L. Alexidze, Z. Zerakidze
Construction Of Gaussian Homogeneous isOtropic statistical Structures Connected With A Stochastic System
Presented by Corr. Member of the Academy E. Nadaraya, December 1, 2003
ABSTRACT. In the present paper we construct Gaussian homogeneous orthogonal, as well as weakly separable statistical structures having maximal possible power. The theorems that any Gaussian homogeneous or isotropic statistical structure is subjected to an orthogonal structure and the latter to the sum of three statistical structures are proved. © 2004 Bull. Georg. Acad. Sci.
Key words: subjected, orthogonal, pure and fully irreducible statistical structures.
Mathematics
G. Nadibaidze
CONVERGENCE OF THE ARITHMETIC MEANS OF DOUBLE SERIES WITH RESPECT TO BLOCK-ORTHONORMAL SYSTEMS
Presented by Member of the Academy L. Zhizhiashvili, November 11, 2003
ABSTRACT. Two-dimensional analog of theorem about almost everywhere convergence of the arithmetic means of series with respect to block-orthonormal systems is proved. © 2004 Bull. Georg. Acad. Sci.
Key words: block-orthonormal systems, double block-orthonormal systems.
Mathematics
T. Tevzadze
On Lipschitz Type Classes and Fourier Coefficients of Functions of Several Variables
Presented by Member of the Academy L. Zhizhiashvili, December 2, 2003
Abstract. The Theorems with generalized results of the author for functions of several variables are stated. © 2004 Bull. Georg. Acad. Sci.
Key words: Lipschitz type classes of functions of several variables.
Mathematics
Ya. Diasamidze, Sh. Makharadze, G. Partenadze, O. Givradze
DESCRIPTION OF S(X, m) CLASS (m – FINAL NUMBER)
Presented by Corr. Member of the Academy D. Baladze, December 2, 2003
ABSTRACT. Class S(X, m) consisting of all final X-semilattices of unions, which are isomorphic to earlier given semilattice Dz are characterized in the work. A number of elements in S(X, m) class is found in the considered case. © 2004 Bull. Georg. Acad. Sci.
Key words: complete semigroups, binary relations, complete semilattices.
Mathematics
T. TSABADZE
ON THE REDUCTION OF BINARY RELATIONS
Presented by Corr.Member of the Academy V.Kokilashvili, December 30, 2003
ABSTRACT. This paper introduces the generalization of the concept of binary relations reduction. The offered approach allows one-valued restoration of any transitive and antisymmetric relation by its reduction. The theoretical basement of this approach has been successively constructed. The example of practical applying of the reduction has been set. The ways of further generalization of introduced concept are outlined. © 2004 Bull. Georg. Acad. Sci.
Key words: binary relation, reduction, transitivity, transitive closure, antisymmetry, strict order, nonstrict order.
Mechanics
L.MAKHARADZE, Corr. Member of the Academy T. IAMANIDZE
ANALYSIS AND ASSESSMENT OF THE INFLUENCE OF the DIameter and WALL thickness along THE LENGTH OF the PIPELINE ON THE WAVETRavel VELOCITY AT hydraulic shock
Presented December 29, 2003
Abstract. Theoretic analysis and graphic material for assessment of the influence of the diameter and wall thickness along the pipeline on the wavetravel velocity of hydraulic shock is presented in the article. © 2004 Bull. Georg. Acad. Sci.
Key words: pipeline, wavetravel velocity, hydraulic shock.
Computer Science
L.Kutchava, O.Shudra
On Automation of Administrative Records Management of Georgia
Presented by Member of the Academy N. Amaglobeli, October 24, 2003
ABSTRACT. For automation of records management of government institutions (in Georgian legislation), the database and software product separate modules of which have passed approbation in some establishments of Tbilisi city have been created. © 2004 Bull. Georg. Acad. Sci.
Key words: database, automation, the network program, records management.
Informatics
M. Shaduri, T. Davitashvili
Holodiffraction in Biological Systems
Presented by Member of the Academy V. Chavchanidze, February 10, 2004
ABSTRACT. Emission of the body, when induced by electromagnetic field of high frequency (“Kirlian Radiation”), modulates those flows/waves, which are generated naturally or appear in response to various influences upon the organism. The emission of living system’s distal parts reflects the condition of the entire body and produces holodiffractional replicas of its functionally activated and structurally altered internal organs. We have also demonstrated non-local and non-specific character of weak ambient signals’ perception by biological objects. It is affirmed that self-organized field/wave processes are manifested in the form of integral “Holo-informational” system of the whole body, ensuring the systemic features and specificity of biological objects. © 2004 Bull. Georg. Acad. Sci.
Key words: biological emission, holo-diffraction, functional system.
Physics
I. Ratishvili, N. Namoradze
INFLUENCE OF HYDROGEN ORDERING ON
THE
SPIN-LATTICE RELAXATION TIME IN METAL HYDRIDES.
LOW-TEMPERATURE LIMIT
Presented by Member of the Academy T. Sanadze, September 30, 2003
ABSTRACT. The protonic spin-lattice relaxation time in metal hydrides is discussed. The scheme of analyzes used already for the high-temperature limit is extended to the region of low temperatures in the particular case of compounds NbHx (0.6 < x < 1). © 2004 Bull. Georg. Acad. Sci.
Key words: NMR, metal hydrides, redistribution of interstitial atoms.
Physics
K. Chargazia
Generation of Ultra-Low-Frequency Electromagnetic Planetary Wave Structures in F-Region of the Spherical Ionosphere
Presented by Member of the Academy J. Lominadze, December 23, 2003
ABSTRACT. physical mechanism of generation of the new modes of ultra-low-frequency (ULF) electromagnetic planetary waves in F-region of the spherical ionosphere due to the latitudinal inhomogeneity of the geomagnetic field is suggested. The frequency spectra, phase velocity, wavelength of these perturbations are determined. It is established, that these perturbations are self-localized as nonlinear solitary vortex structures in the ionosphere and moving westward or eastward along the parallels with velocities much higher than the phase velocities of the linear waves. The properties of the wave structures under investigation are very similar to those of low-frequency perturbations observed experimentally in the ionosphere at middle latitudes.
Keywords: ionospheric plasma, planetary waves, inhomogeneous geomagnetic field.
Physics
N. DOLIDZE, Z. JIBUTI, M. PKHAKADZE, N. SIKHUASHVILI
LOW-TEMPERATURE LAZER ANNEALING OF RADIATION DEFECTS IN n-GaAs
Presented by Member of the Academy T.Sanadze, February 6, 2004
ABSTRACT. The low-temperature laser annealing of the radiation defects created in n-GaAs by accelerated electrons has been investigated. It is shown, that the laser action can promote both annealing and recharge of radiation lattice defects. © 2004 Bull. Georg. Acad. Sci.
Key words: laser annealing, radiation defects, gallium arsenide.
Physics
N. Kuchava
Neutron Activation Analysis of Biological Materials by Means of Neutron Multiplicator
Presented by Member of the Academy N. Tsintsadze, February 3, 2004
Abstract. We have studied the possibilities of instrumental neutron activation analysis of freeze-dried biological materials performed with neutron multiplicator of average power (subcritical assembly PS-1). Neutron flux in the vertical channel amounts to 2.3´106n/cm2sec, concentrations of Na, Al and Mn were determined in freeze-dried samples of blue-green alga Spirulina platensis (S. platensis). © 2004 Bull. Georg. Acad. Sci.
Key words: activation analysis, neutron multiplicator, biological samples.
Physics
A. BIBILASHVILI, A. GERASIMOV, R. KAZAROV, I. KVANTALIANI
RADIATION EFFECT ON the PARAMETERS of FIELD TRANSISTOR WITH SHOTTKY BARRIER ON GaAs
Presented by Corr. Member of the Academy G.Japaridze, March 16, 2004
ABSTRACT. In the present work we report the results of study of electron and g-radiation effect on the parameters of normally open and normally closed field transistors with Shottky barrier on GaAs. It has been shown that normally closed field transistors are more sensitive to the action of radiation than normally open ones. Both transistors are more sensitive to electron irradiation. The possible reasons of the mentioned effects are given. © 2004 Bull. Georg. Acad. Sci.
Key words: field transistor, Shottky barrier, radiation.
Physics
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Z.GOGUA, G. GOGUA, I.SHIRYAPOV, A.TSERTSVADZE
ELECTRON SCATTERING ON IONIZED IMPURITIES
Presented by Corr. Member of the Academy G.Japaridze, February 9, 2004
ABSTRACT. We consider calculations of relaxation time, electrons mobility and termo-emf in semiconductors in new models of impurity centre. New results which qualitatively and quantitatively differ from the corresponding classical laws of Broks-Herring and Conwell-Vaiskopf are received. The obtained results are closer to the experimental data than classical results. © 2004 Bull. Georg. Acad. Sci.
Key words: scattering, electromotive force, screen, alkaline-halide.
Physics
A.GULDAMASHVILI
EMISSION PROPERTIES OF MOLYBDENUM, NIOBIUM AND TUNGSTEN, IMPLANTED WITH OXYGEN IONS
Presented by Member of the Academy N.Tsintsadze, December 30, 2003
ABSTRACT. Application of specific advantages of the technology of high fluence ion implantation at non-equilibrium high over-saturation of the solid body with the radiation defects and oxygen atoms allowed to improve the emission and adsorption properties of the surface layers of molybdenum, niobium and tungsten, preserving the plastic and other properties of the rest bulk volume of the sample. Basic laws and mechanisms of the directed change of emission and adsorption features of oxygen ion-implanted metals were determined. The report classifies and generalises basic results and experience in the development of ion-implanted materials with high emission-adsorption parameters. © 2004 Bull. Georg. Acad. Sci.
Key words: ion implantation, oxygen, molybdenum, niobium, tungsten, emission, parameters.
Geophysics
I. Shekriladze
Two-Zone Model of Heat Transfer from an Ocean to Tropical Hurricane
Presented by Member of the Academy B. Balavadze, January 22, 2004
ABSTRACT. Two-zone model of heat transfer from ocean upper layer to tropical hurricane is introduced. The first zone includes the major outer portion of active ocean area with average heat flux practically independent on maximum intensity of tangential winds of a hurricane. The second zone covers central area of hurricane with average heat flux essentially influenced by the most powerful tangent winds. The integral heat flux calculation procedure is offered fitted to developed previously equilibrium translation model. © 2004 Bull. Georg. Acad. Sci.
Key words: tropical hurricane, heat transfer, equilibrium translation, alignment number.
GEOPHYSICS
E. Jibladze, N. Butikashvili, E. Glonti
Effective Attenuation of Macroseismic Intensity with Distance According to Data on the Racha Earthquake of April 29, 1991
Presented by Corr. Member of the Academy T. Chelidze, November 20, 2003
ABSTRACT. The effective coefficient of attenuation of macroseismic intensity with distance is studied for the Racha earthquake region. The study is based on macroseismic data on the Racha earthquake of April 29, 1991. The Blake-Shebalin formula for macroseismic field was used. Proceeding from the energy model of the earthquake focus, we consider the intensity for point, linear and volumetric foci. © 2004 Bull. Georg. Acad. Sci.
Key words: earthquake, magnitude, energy class, epicenter, absorption, effective attenuation.
Geophysics
Corr. Member of the Academy R. Kiladze, N. Kachakhidze, V. Kukhianidze,
G. Ramishvili, M. Kachakhidze
Study of Earthquakes and Atmospheric Processes Connected with them
Presented October 21, 2003
ABSTRACT. Long-standing observations show that earthquakes are not independent phenomena. All earthquakes are followed by complex processes of preparing, which are revealed as the earthquake precursors in most of cases by variation of different geophysical fields.
In order to reveal the possible earthquake precursors for the Caucasus we studied electric field potential gradient perturbations of atmosphere.
Based on the analysis of 1953-1992 data for the earthquakes with there have been got anomalous perturbations in the potential gradient character changing, which are divided into three categories. Such phenomena were fixed 10 days before the earthquake occurring; they may be considered as earthquake precursor effects. © 2004 Bull. Georg. Acad. Sci.
Key words: potential gradient, weather combination, earthquake.
Organic Chemistry
D. Ioseliani, T. Kurtsikidze, K. Sarajishvili, M.
Vacheishvili, A. Dolidze,
Corr. Member of the Academy V. Tsitsishvili
Synthesis of optically active
s-a phenylethylamide of benzoyltyrosine
by diastereoselective hydrogenation
Presented October 18, 2003
Absrtact. The reaction of hydrogenation of s-a-phenylethylamide of benzoyldehydrotyrosine on Pd-catalysts supported on SiO2, gumbrine, clinoptilolite, aluminum oxide and activated charcoal have been studied. The influence of temperature and the substrate substituent on the optical yield of benzoyltyrosine has been investigated. © 2004 Bull. Georg. Acad. Sci.
Key words: amino acids, asymmetry.
Physical Chemistry
E. Kachibaia, R. Imnadze, R. Akhvlediani, Sh. Japaridze, T. Paikidze
Structural Features of LiMn2-xNixO4 Cathode Materials Synthesized through Sol-Gel Method
Presented by Member of the Academy J.Japaridze, October 15, 2003
ABSTRACT. The sol-gel method of obtaining Ni-doped lithium-manganese spinel was proposed. LiMn2-xNixO4 type compounds characterized by cubic spinel lattice with a = 8.23 ч 8.174 Е within the range 0 £ x £1 were obtained. The structure of normal spinel is preserved throughout the range 0 £ x £1 and dopent metal Ni is located in octahedral sites of manganese. This can promote retention of their structure integrity on multiply cycling and eventual improvement of electrochemical performances of cathode material. © 2004 Bull. Georg. Acad. Sci.
Key words: lithium-ion batteries, cathode material, lithium-manganese spinel, sol-gel method, structure, doping.
Physical Chemistry
E. Lekveishvili, N. Vashakmadze, N. Naskidashvili, T. Chavchanidze
THE RESULTS OF TESTING ZEOLITE FILTERS TO IMPROVE PETROL QUALITY
Presented by Member of the Academy T. Andronikashvili, January 27, 2004
ABSTRACT. On the basis of carried out investigations the possibility of improving petrol quality using acid-modified species of natural zeolite-clinoptilolite is proposed. Low octane and high-octane petrol brands have been used for the experiments. Chromatographic analysis has shown that treated petrols contain less amount of n-parafins than initial petrols. © 2004 Bull. Georg. Acad. Sci.
Key words: petrol, zeolite, clinoptilolite, chromatography, internal combustion engine.
Physical Chemistry
member of the Academy T.
Andronikashvili, M. Sharvashidze,
E. Kekelidze, L. Aptsiauri, L. Trapaidze, T. Butkhuzi
Influence of Oxygen on base crystals ZnSe treated by RBQE
Presented October 21, 2003
ABSTRACT. We investigated nonimplanted and preliminary oxygen implanted ZnSe monocrystals treated by RBQE. After removing new quasiepitaxial layers of ZnO we studied electrical and luminescence properties of ZnSe basic crystals. According to Thermo-EMF measurement in all cases near-surface layers of ZnSe basis revealed p-type conductivity (r=104-106 Wcm). In the PL spectra of implanted and nonimplanted ZnSe basic crystals treated in identical conditions the bands with maxima at l=480 nm; l=540 nm and l=720 nm were observed. In the PL spectrum of implanted ZnSe new band with maximum at l=628 nm was additionally observed. In our opinion this band must be connected to the existence of oxygen in the crystal, supposedly to (OSe-VZn-).
Key words: ZnO, ZnSe, implantation, PL, PC.
Electrochemistry
G. GORDADZE, G. AGLADZE
INVESTIGATION OF DEPENDENCE OF MASS TRANSFER COEFFICIENT ON TECHNICAL PARAMETERS OF ELECTROLYZER IN SYSTEMS WITH DISPERSED ELECTRODES
Presented by Member of the Academy J.Japaridze, December 1, 2003
ABSTRACT. In this paper dependence of mass transfer coefficient on technical parameters of electrolyzer for systems with dispersed electrodes is studied theoretically. The results of investigations allow us to choose without previous experiments both a type of dispersed electrodes and optimal technical parameters of electrolyzer for electrochemical processes, proceeding by convective diffusion. © 2004 Bull. Georg. Acad. Sci.
Key words: dispersed electrode, mass transfer coefficient.
Electrochemistry
R. Kvaratskhelia, E. Kvaratskhelia
CONTRIBUTION OF THE DIFFERENT STEPS OF DISSOCIATION OF WEAK DIBASIC ORGANIC ACIDS TO the FORMATION OF HYDROGEN IONS CONCENTRATION IN THEIR SOLUTIONS
Presented by Member of the Academy J.Japaridze, October 24, 2003
ABSTRACT. The
regularities of the formation of hydrogen ions concentration in the solutions
of weak dibasic acids with the close values of 
and
have been
described. The role of the different steps of dissociation and value of / ratio have been discussed. © 2004 Bull. Georg. Acad. Sci.
Key words: dissociation, constant, hydrogen ions, concentration, acid.
Pharmaceutical Chemistry
V. Barbakadze, Member of the Academy E. Kemertelidze
Structural Characterization of Polysaccharides from Mistletoe Viscum album L. Berries and their Anticomplementary Activity
Presented September 18, 2003
ABSTRACT. According to the chemical analysis and №іC NMR spectral data two acidic arabinogalactans from mistletoe (Viscum album L.) berries belong to the class of pectin substances. Both polysaccharide preparations inhibit in vitro the alternative pathway of human complement system. © 2004 Bull. Georg. Acad. Sci.
Key words: Viscum album, mistletoe, polysaccharide, acidic arabinogalactan, complement.
Pharmacochemistry
V.Mshvildadze, R.Elias, B.Baghdikian, E.Ollivier, G.Dekanosidze, G.Balansard, G.Boudon
Quantitative HPLC analysis of triterpene glycosides in dry extracts from the leaves of Hedera colchica and H.Pastuchowii
Presented by Member of the Academy E. Kemertelidze, December 9, 2002
Abstract. High performance liquid chromatographic method was developed for the qualitative and quantitative determination of the triterpene saponins in the purified extract of Hedera colchica and H.Pastuchowii. The major compounds – hederacolchisides E (Hcol E) and F were used as external standards for quantification. Hcol E made 19.1% and 14.4% respectively in the dry extracts of H.colchica and H.Pastuchowii. Hcol F was 13% in the extract of H.Pastuchowii. © 2004 Bull. Georg. Acad. Sci.
Key words: Hedera colchica, Hedera Pastuchowii, Araliaceae, triterpene saponin, HPLC, anthelmintic activity.
Palaeontology
K. Koiava
BIOSTRATIGRAPHY OF LIASSIC AND LOWER AALLENIAN SEDIMENTS OF DZIRULA CRYSTALAIN MASSIF on BRACHIOPOD'S data AND some ISSUES OF PALaEOgeoGRAPHY
Presented by Corr. Member of the Academy M. Topchishvili, December 30, 2003
ABSTRACT. Lower and upper horizons with brachiopods were identified according to the brachiopods preserved in the Liassic and Lower Aallenian sediments of Dzirula crystalain massif. These horizons are related to the Kvirila (Lower Plinsbachian) and Shrosha (Upper Plinsbachian-Lower Aallenian) suits identified on the basis of amonite fauna. According to facies analysis, paleobotanical and paleotechtonical data, morphological features of Brachiopods lived in a warm climatic belt, in a shallow basin of normal sea shore basin, in both movable and still water environment. The results of the analysis are presented in the article. © 2004 Bull. Georg. Acad. Sci.
Key words: Dzirula massif, Liassic sediments, brachiopods, horizon with brachiopods, Kvirila suit, Shrosha suit.
Metallurgy
Sh.OGBAIDZE, Z.SVANIDZE, B.GOGICHAISHVILI, T.SHARABIDZE, L. svanidze
PURIFICATION OF GASES EXHAUSTED FROM INDUSTRIAL FURnAcEs DURING METALLURGICAL TREATMENT OF BARIUM ORE AND MANGANESE DIOXIDE
Presented by Member of the Academy G. Gvelesiani, July 15, 2003
ABSTRACT. The article consiclers receiving barium bearing complex alloy from industrial waste. Concentrations of manganese, lead, zinc and nickel in gases exhausted from industrial furnaces are estimated. Purification system consisting of fibrous sorbent as filter ensuring refinement of exhausted gases from metals is offered. © 2004 Bull. Georg. Acad. Sci.
Key words: industry, chemistry, furnace, filter, atomic-absorption, aspiration.
ELECTROTECHNICS
J. Dochviri, I. Dochviri
Mathematical Models and Optimization of Dynamics of Three Phase AC Asynchronous Drive by Regulation of the Voltage and Frequency
Presented by Member of the Academy R. Adamia, November 2003
Abstract. Transfer functions of asynchronous AC electric drive by regulating voltage and frequency are given. The optimal parameters of speed regulator using frequency characteristics are established. © 2004 Bull. Georg. Acad. Sci.
Key words: AC drive, control, dynamics.
PLANT PHYSIOLOGY
E. KIMUTSADZE, Z. PUTKARADZE
THE EFFECT OF BIORAG ON GERMINATION ENERGY AND SPROUTING CAPACITY OF MULBERRY SEED
Presented by Corr. Member of the Academy P. Naskidashvili, July 15, 2003.
ABSTRACT. The use of Biorag increases germination energy and sprouting capacity of the mulberry seed in comparison with control variant. Its action on mulberry seed lasts even after 100 days. © 2004 Bull. Georg. Acad. Sci.
Key words: mulberry seed, germination, sprouting capacity, bioenergoactivator, Biorag
PLANT PHYSIOLOGY
M. Gaidamashvili, T. Ogawa, K. Muramoto
ISOLATION AND CHARACTERIZATION OF MALTOSE-BINDING LECTIN FROM dioscorea batatas (DECNE)
Presented by Corr. Member of the Academy N. Aleksidze, April 20, 2004
ABSTRACT. Maltose-binding lectin (DBL) was isolated and purified from yam tubers (Dioscorea batatas Decne) by hydrophobic chromatography on Phenyl-Toyopearl 650M and anion exchange chromatography on HiTrapQ. DBL showed high affinity to maltose and its polymer starch. Molecular weight and structural assembly of DBL subunits were determined by combination of chemical cross-linking of subunits and SDS-PAGE. DBL was heterodimer of 66 kDa and 31 kDa subunits with inter-chain disulfide bonds in the large subunit. © 2004 Bull. Georg. Acad. Sci.
Key words: Dioscorea batatas, maltose-binding lectin, yam.
Genetics and Selection
Corr. Member of the Academy P.Naskidashvili, M.Naskidashvili,
I.Naskidashvili, I.Rekhviashvili
STUDY OF SPECIES, SUBSPECIES AND soRTS
of GEORGIAN WHEAT
Presented October 8, 2003
ABSTRACT. Of 23 wheat species spread in the world 14 cultural species have been recorded in Georgia. From Georgian wheat species five new species have been obtained which makes over than 65% of species entering wheat genus. It is interesting to note that 5 species are endemic and they are not found in any other country of the world. In addition to the number species Georgian wheat is distinguished with the diversity of aboriginal sorts. Endemic species and aboriginal sorts of the Georgian wheat are characterized with valuable features and properties. They represent the best initial material for selection and are of great practical and scientific importance. © 2004 Bull. Georg. Acad. Sci.
Key words: wheat.
Genetics and Selection
G. Geladze
Biological Method of Obtaining Tetraploids
of Lemon
Presented by Corr. Member of the Academy P.Naskidashvili, December 2, 2003
ABSTRACT. Seedlings of lemon ablacted on Poncirus genus undergo tetraploidization (2n 36) on the first year of existence. Chromosome number becomes doubled only in the apex of the second sprout. Growth of initial cell of the apex is preceded by its auxetic growth. © 2004 Bull. Georg. Acad. Sci.
Key words: ablaction, tetraploidization, apex, auxesis.
Human and Animal Physiology
G. Todua
Electrophysiological Investigation of some Properties of Output Neurons of Lateral Nucleus of the Amygdaloid Complex
Presented by Member of the Academy T. Oniani, October 26, 2003
Abstract. Efferent neurons of the lateral nucleus (LN) were investigated by their antidromic responses to ventral amygdalofugal tract stimulation in anaesthetized cats. These cells were examined by their responses to central (CN) and basal (BN) nuclei stimulation. Our results indicate, that there are output neurons in LN, which sent axon collaterals to other nuclei of the amygdaloid complex. © 2004 Bull. Georg. Acad. Sci.
Key words: lateral nucleus, antidromic response, axon collateral, collision test.
Human and Animal Physiology
D.TSINTSADZE, E.KARELI, L.CHKHUBIANISHVILI, M.GOGOBERIDZE,
Member of the Academy M.KHANANASHVILI, E.IMNADZE, N.ABASHIDZE,
L.PKHAKADZE
Alcohol Motivation in the Rats Under Psychogenic Stress Conditions
Presented December 2, 2003
ABSTRACT. The animals studied were divided into two groups. Group I consisted of those animals, which had strong inclination towards alcohol (heavy drinkers). Animals in the II group consumed less alcohol and thus were labeled as moderate drinkers.
When at Stage II of experiments the animals were subjected to elaboration of two different active avoidance responses separately, the heavy drinkers decreased volume of self-administered ethanol, while the moderate drinkers increased alcohol consumption.
The trend to decreased consumption of alcohol was maintained at Stage III of experiments, when the two avoidance responses were unified. Therefore, under conditions of psychogenic stress the heavy drinkers were transformed into the moderate ones, while the moderate drinkers – into the heavy ones. © 2004 Bull. Georg. Acad. Sci.
Key words: psychogenic stress, alcohol consumption, active avoidance, rats.
BIOCHEMISTRY
T. Tarielashvili, G. Mrevlishvili
IRREVERSIBLE THERMAL DENATURATION OF MRP8/14 PROTEIN
Presented by Member of the Academy G.Kvesitadze, October 7, 2003
ABSTRACT. Thermal properties of denaturation of MRP8/14 protein (Macrophage migration inhibitory factor Related Protein) at different pH values have been studied by differential scanning calorimetry (DSC) and circular dichroism (CD). It was shown that under experimental conditions, denaturation of studied protein is irreversible. © 2004 Bull. Georg. Acad. Sci.
Key words: MRP8/14, DSC, CD, irreversible denaturation, oligomeric proteins, pH dependence, heat capacity.
Biochemistry
N. Surguladze, N. Koshoridze,
Corr. Member of the Academy N. Aleksidze
THE INOSITOL-SPECIFIC LECTIN FROM SYNAPTIC VESICLE MEMBRANES
Presented October 21, 2003
ABSTRACT. Inositol specific neurolectin has been isolated from synaptic vesicles of bovine brain (BVL-I). Some physico-chemical properties of BVL-I are investigated. In particular, it was determined that BVL-I lectin is glycoprotein with 10% of total amount of carbohydrates. The lectin reveals high sensitivity to Ca2+ and Mg2+-ions. This fact suggests that these ions presumably participate in the implementation of lectin functions. It was determined that BVL-I shows high affinity to the phosphatidylinositol and phosphatidylxoline only. Proceeding from the above mentioned results the participation of BVL-I in the process of neuroexocytosis is supposed. © 2004 Bull. Georg. Acad. Sci.
Key words: lectin, brain, neurotransmission.
Biochemistry
I. Pipia
BENDS IN MOUSE SATELLITE DNA
Presented by Member of the Academy T. Beridze, November 25, 2003
ABSTRACT. Mobility of mouse satellite DNA dimer in PAAG at different temperatures has been studied. It was shown that the dimer contains bends and its straightening at the temperature elevation has specific character. The dependence of K factor from temperature has chair-like form: it decreases in the interval 5-250C, remains unchanged in the interval 25-350C and at 450C decreases to the final value – 1.02. The specific form of the curve can be explained on the basis of CDH-form characteristic for satellite DNA. © 2004 Bull. Georg. Acad. Sci.
Key words: mouse, satellite DNA, DNA bending, electrophoresis.
BIOCHEMISTRY
N. Zakariashvili, T. Iashvili, L. Daushvili, M. Jobava, T. Aleksidze
GROWTH AND ENZYMATIC ACTIVITY OF Cerrena Unicolor 062 IN THE CONDITIONS OF SUBMERGED FERMENTATION ON THE WASHED OFF CUTTINGS OF GRAPEVINE
Presented by Member of the Academy G. Kvesitadze, December 30, 2003
ABSRTACT. Possibility of physiological regulation of enzymatic activity of Cerrena unicolor 062, grown under conditions of submerged cultivation washed off cuttings of grapevine has been investigated. It was established that the concurrent application of additional sources of nitrogen and carbon is responsible for the highest increment of fungous protein and sharp increasing of laccase, ligninase and Mn – peroxidase activities. © 2004 Bull. Georg. Acad. Sci.
Key words: protein, laccase, lignocelulose, ligninase, Cerrena unicolor 062.
Biochemistry
K. Jibladze
THE BASES OF TEACHING THE CARBOHYDRATE METABOLISM VIA THE DIALOGUE
Presented by Member of the Academy G. Kvesitadze, July 8, 2003
ABSTRACT. In order to stimulate thinking and interest in future specialists and to prepare them for further professional activities the active teaching methods should be implemented in the higher education. During learning the biochemistry, among the active methods of teaching, the lecture-dialogue may be applied. We have developed the exemplary scheme for teaching the basic topic (Carbohydrate Metabolism) via the lecture-dialogue. Implementation of the latter determines an independent logical thinking in the students, an ability to make correct conclusions, and enrichment and consolidation of their scholarship. © 2004 Bull. Georg. Acad. Sci.
Key words: biochemistry, teaching methods, lecture-dialogue, Carbohydrate Metabolism.
Entomology
B. DEVELASHVILI
EPIDEMIOLOGIC IMPORTANCE OF PHYSIOLOGICAL AGE OF TRANSMISSIBLE DISEASE TRANSMITTERS
Presented by Corr. Member of the Academy B. Kurashvili, March 3, 2004.
ABSTRACT. The physiological age of Anopheles maculipennis was studied in the hypermalariogenic zone of eastern Georgia mainly in surroundings of Gardabani and Tbilisi (Soganlugi, village Digomi). We have investigated spring, summer and autumn populations. The following issues were determined: the physiological age of Anopheles maculipennis, the number of individuals within the honoactive population, the duration of their active life period, epidemiologic definition of various age groups of females in malaria transmission, the influence of climatic factors on the seasonal distribution of the transmitter’s age groups. © 2004 Bull. Georg. Acad. Sci.
Key words: Anopheles maculipennis, diapause, honoactivity, physiological age, sporogonia, endophilar transmission, exophilar, ectoparasite.
ZOOLOGY
Kh. Tsiklauri, L. Gurgenidze, E. Kvavadze, G. Kajaia
Soil MEZOFAUNA OF ALGETHY RESERVE
Spruce forests
Presented by Corr. Member of the Academy I. Eliava, December 9, 2003
ABSTRACT. The mezofauna of Algethy Reserve soil distributed in spruce forests on different see levels was studied. By species diversity and high density the order of insects Diptera is distinguished. Their representatives fulfill a main role in utilization of plant residues and creation of humus. © 2004 Bull. Georg. Acad. Sci.
Key words: Algethy Reserve, mezofauna, Insecta, Diplopoda, Aranei, Enchitreidae, Oniscoidea, Mermitidae, Mollusca, Lumbricidae.
Parasitology and Helminthology
O. Gorgadze, M. Lortkipanidze
THE INVASION OF COLORADO BEETLE (Leptinotarsa Dezemlineata Say) BY USING THE NEMATODE Steinernema Thesami (Steinernematidae)
Presented by Corr. Member of the Academy I. Eliava, September 21, 2003
ABSTRACT. The paper presents the results of experiments made in both laboratory and field conditions. As a result of application of the nematode Steinernema thesami in laboratory experiments mortality rate of Leptinotarsa dezemlineata imagos and its worms made 97.4% and 68.1% correspondingly. 62.3% of pests perished as a result of invasion by nematodes in field experiments. © 2004 Bull. Georg. Acad. Sci.
Key words: Leptinotarsa dezemlineata, Steinernema thesami, biological control, nematode, invasion, entomopathogenicity, titre, migration.
Parasitology and Helminthology
E. Kakalova, Corr. Member of the Academy B. Kurashvili, L. Tsiskarishvili
Metacercaria of Diplostomum spathaceum Trematode in Fish of Kumisi and Tbilisi Reservoirs
Presented December 2, 2003
ABSTRACT. The work deals with the pathogenic action of metacercaria of Diplostomum spathaceum parasite in fish of the reservoirs of Kumisi and Tbilisi. Invasion degree caused by this parasite and the influence of excessive salinity on fish and host has been shown. © 2004 Bull. Georg. Acad. Sci.
Key words: trematoda, Diplostomum spathaceum, metacercaria, diplostomatosis.
Cytology
M.Zhvania, N.Topuridze, N.Uberi, G.Chakhunashvili
Erythrocytes during Hemorrhagic Vasculite in Children
Presented by Member of the Academy T.Chanishvili, November 25, 2003
Abstract. We have studied erythrocytes during hemorrhagic vasculitis in children. A total of 12 cases and 3 controlsones have been examined. The method of light and electron microscopy has been used while studying red-formed elements of blood. It has been shown that structural changes obtained before treatment and after it only approximate to the norm. © 2004 Bull. Georg. Acad. Sci.
Key words: hemorrhagic vasculite.
Experimental Morphology
M. Jangavadze
HISTOLOGICAL ASSESSMENT OF SKIN GRAFTS PRESERVED IN NATURAL HONEY
Presented by Member of the Academy N. Javakhishvili, December 2, 2003
ABSTRACT. This study provides a description of the histological changes occurring in rat skin grafts stored at 4°C in natural honey per 3, 7, 14, 30 days. During the storage time changes were seen in all layers of the epidermis and dermis. The early features were nuclear and cellular swelling and pleomorphism. After 14 days nuclear and cellular shrinkage, halo formation and pyknosis became evident. The most worrying histological features were the development of dermo-epidermal blebs and their separation after 30 days of preservation. Along with the conservation term the destructive changes increase in the epidermis. Such histological changes can decrease the success of transplantation. © 2004 Bull. Georg. Acad. Sci.
Key words: skin, transplantation, preservation, histological assessment, honey.
Experimental Morphology
J. Kurely, N. Kakauridze, M. Tsagareli
INFLUENCE OF EXOGEnOUS CHOLESTEROL ON THE MICROCIRCULAR VESSELS AND FORMED ELEMENTS FUNCTIONAL MORPHOLOGY IN THE TIME-RELATED COURSE OF ATHEROGENESIS
Presented by Member of the Academy N. Javakhishvili, December 9, 2003
ABSTRACT. The aim of the present study is to examine the character and intensity of structural functional transformation of blood formed elements at different stages of atherosclerosis development as well as appropriateness of the reciprocal reaction to exogenous cholesterol (Ch) effects as one of the main factors of atherosclesosis pathogenesis at the experimental model of the disease and under the conditions of clinical observation. The data received confirm an ethiologic importance of exogenous Ch and SFA as a starting point of atherogenesis. © 2004 Bull. Georg. Acad. Sci.
Key words: functional morphology, cholesterol, microcircular vessels, formed elements, atherogenesis.
Experimental Morphology
M. Beltadze, L. Nebolsina
ULTRASTRUCTURAL ANALYSIS OF HEART LEFT VENTRICULAR MYOCARDIOCYTES IN EXPERIMENTAL ALCOHOL CARDIOMYOPATHY
Presented by Member of the Academy N. Javakhishvili, October 21, 2003
ABSTRACT. Left ventricular myocardium ultrastructure and indices of blood acid-base balance have been studied in male rats under experimental alcohol cardiomyopathy. Sarcomere overcontraction, damage of capillary transendothelial transport function, considerable disintegration of mitochondrion membranes, shift of indices of blood acid-base balance to acidosis have been revealed. The changes in myocardiocytes intensified with an increase in ethanol injection time. © 2004 Bull. Georg. Acad. Sci.
Key words: alcohol cardiomyopathy, myocardiocytes, ultrastructure.
Experimental medicine
I. Mikadze, G. Kavtaradze, T. Tskhvaradze
Influence of the Personal Characteristics on the Development and Progression of the Arterial Hypertension and Ischemic Heart Disease
Presented by Member of the Academy N. Tatishvili, February 4, 2004
ABSTRACT. Personal characteristics: types of fixated set (TFS), behaviour types and functional asymmetry at patients with arterial hypertension and ishemic heart disease (IHD) have been determined. The study of parameters show, that there is certain corellation between them. The change of causes statistically true increase the per cent index of behaviour types A1 and A2. The worsening of clinic condition is fixed more often in behaviour group I (A1 A2) compared with group II (AB, B1). It could be said that A1 A2 behaviour types and changing of TFS were those personal characteristics which cause worsening of clinic condition of patients. © 2004 Bull. Georg. Acad. Sci.
Functional asymmetry was studied in 49 patients. The patients were divided into 3 groups: right-sided (D), left-sided (S) and D=S. The infra structure of the distribution of the behaviour types in different groups of the functional asymmetry has shown, that in right-sided (D) and in left-sided (S) groups there is prevalence of A2 behaviour type, in the group D=S AB behaviour type dominates.
Key words: ischemic heart disease, arterial hypertension, type of fixated set, behaviour type, functional asymmetry.
Experimental Medicine
N. Cheishvili, T. Chikovani, R. Rukhadze, T. Sanikidze,
N. Kulikova, M. Iobadze, M. Jgenti, N.Kukuladze,
Member of the Academy V. Bakhutashvili
Early treatment of experimental hepatitis by Plaferon LB
Presented November 11, 2003
ABSTRACT. Plaferon LB (PLB) is an endogenic preparation received from human placenta. It possesses immunomodulatory, antioxidant and antitoxic activities. In the present study, the effect of PLB on experimental model - concanavalin A (Con A)-induced hepatitis was examined. PLB (0.25 mg/kg) inhibited the ConA-induced elevation of alanine aminotransferase (AlAT) activity. Histological examination showed that at the last point of observation after PLB therapy generally the normal structure of the liver tissue was restored, the areas of destruction and necrosis were not characteristic. FACS investigation confirmed morphological study, that demonstrated inhibition of the development of Con A-induced necrosis in the liver by PLB and in this group of mice the hepatocytes mainly died by apoptosis . Improvement of morphological changes took place against a background of high level of nitric oxide (NO). We speculate that elevation of NO is the result of intensification of constitutive NO under the influence of PLB. © 2004 Bull. Georg. Acad. Sci.
Key words: Concanavalin A-induced hepatitis, Plaferon LB.
Experimental Medicine
T. Akhobadze, N. Amaglobeli, L. Sereda, K. Shelegia, N.
Lomishvili,
L. Burjanadze, D. Ghirdaladze, G. Iosava, N. Porakishvili
Impaired Phagocytic Function of Monocytes in B Cell Chronic Lymphocytic Leukaemia
Presented by Corr. Member of the Academy G. Tumanishvili, April 28, 2004
ABSTRACT. The ability of Fcg-receptors to bind to IgG affects the ability of the phagocyte to effectively eliminate opsonized pathogen. In this paper the phagocytic capacity of the monocytes from the patients with B cell chronic lymphocytic leukaemia (B-CLL) has been investigated. In vitro studies of the monocyte ability to engulf opsonized Staphylococcus aureus show that this function is significantly reduced and that the monocytes from B-CLL patients are unable to effectively phagocytose the bacterial particles. © 2004 Bull. Georg. Acad. Sci.
Key words: B cell chronic lymphocytic leukaemia (B-CLL), phagocytosis, monocytes.
Palaeobiology
I. SHATILOVA, L. RUKHADZE, N. MCHEDLISHVILI, N. MAKHARADZE
ON THE USE OF THE LANDSCAPE-Phytocenological METHOD FOR THE Restoration OF VEGETATION AND CLIMATE OF MOUNTAIN REGIONS (on the example of Colchis)
Presented by Corr. Member of the Academy G. Mchedlidze, September 2, 2003
Abstract. The landscape-phytocenological method of climate and vegetation restoration of the past is considered. It is widely used for the interpretation of palynocomplexes of the Late Cenozoic deposits of Colchis, which is the physico-geographically isolated region with mountain relief. The brief history of the development of the Late Miocene vegetation and climate, reconstructed on the basis of this method is considered in the paper. © 2004 Bull. Georg. Acad. Sci.
Key words: landscape-phytocenological method, palynocomplexes, Late Miocene, vegetation, climate, Colchis.
Ecology
Sh.Abramidze,
N.Katamadze, G.Kiknadze, G.Nabakhtiani, M.Razmadze, Z.Rostomashvili,
Z.Saralidze
ESTIMATION OF EFFICIENCY OF DIFFERENT SHIELDING MATERIALS AT DECOMMISSIONING OF NUCLEAR REACTOR OF THE INSTITUE OF PHYSICS OF GEORGIAN ACADEMY OF SCIENCES
Presented by Member of the Academy K. Nadareishvili, December 2003
ABSTRACT. After 28 years operation of nuclear research reactor IRT-M, Georgian Academy of Sciences made decision to decommission the reactor by means of its dismantling, but instead of this, the Institute of Physics made the decommissioning of the reactor by covering the lower radioactive part of the tank and in-tank units with concrete. The theoretical calculations of the efficiency of different shielding materials have been presented and the reasoning of using concrete is shown. The obtained results are interesting both theoretically and practically for decommissioning the similar exhausted nuclear reactors. © 2004 Bull. Georg. Acad. Sci.
Key words: radiation, reactor.
Ecology
J. ONIANI, T. ONIANI, M. NIKOLAISHVILI, T. MUSELIANI
STUDY OF CHEMICAL AND RADIOACTIVE/ECOLOGICAL STANDARDIZATION
Presented by Corr.Member of the Academy D. Jokhadze, September 30, 2003
ABSTRACT. The chemical and radioecological standardization of rivers and natural waters of several regions of Georgia (Aspindza, Akhaltsikhe, Adygheni) have been studied. It was shown that the composition of nitrates, radionuclides and heavy metals in the rivers and natural waters is within the norm. This can be explained by the fact that in the waters of Georgia the processes of self-cleaning proceed very actively. © 2004 Bull. Georg. Acad. Sci.
Key words: radio nuclide, nitrate, natural waters.
Psychology
D. Zurabashvili, M. Gergedava
Demopsychological Problems of Migration
Presented by Member of the Academy Sh. Nadirashvili, December 25, 2003
ABsTRACT. Migration makes contradictory action on the efficiency of demoecological development in Signakhi region of the east Georgia. The scales of stationary migration of two main life periods in juveniles and young people are determined. The method of questionnaire is used. The main reasons of migration are considered. © 2004 Bull. Georg. Acad. Sci.
Key words: migration, ecology.
Economics
V. CHOCHELI
On THE PROBLEM OF tax BURDEN and “shadow economy”
Presented by Corr. Member of the Academy V. Papava, February 10, 2004
ABSTRACT. Tax burden measured by the ratio of tax to GDP shows an aggregated impact of fiscal politics upon the change in business activity, though it does not completely reflect the volume of payments really rendered by economic agents. To meet the lack here we introduce the notion on tax burden, which connects official and unofficial sectors of the national economy and shows the scale of the complete “financial pressure” the private sector undergoes. It is applicable for evaluation of taxation policy disadvantages. It also allows to elaborate the measures for raising its efficiency in both post-communist and developed countries. © 2004 Bull. Georg. Acad. Sci.
Key words: tax burden, gross domestic production, corruption.
Economics
M.Vanishvili
METHODOLOGICAL AND METHODIC PRINCIPLES IN ELABORATION OF FOOD SECURITY STRATEGY for GEORGIA
Presented by Corr.Member of the Academy A.Silagadze, February 9, 2004
ABSRACT. The main principles of the strategy of national food security are considered. The optimal condition in solution of the national food security problem is the formation of government food funds and creation of reserves for emergencies on the expense of domestic production and removal of any barriers for imports. We have determined optimal and marginal (critical) parameters of the most important items of food products for the nearest and long perspectives. © 2004 Bull. Georg. Acad. Sci.
Key words: food security, domestic production.
Economics
L. Grigalashvili
NECESSITY FOR THE ACCOUNTING SYSTEM REFORM, AIMS AND OBJECTIVES IN TRANSITION OF GEORGIA TO MARKET ECONOMY
Presented by Corr. Member of the Academy A. Silagadze, March 30, 2004
ABSTRACT. The main objective of this work is to review the existing accounting system of Georgia and substantiate the necessity for its reform during transition of the country to market economy. Comparison of the existing system with the “European” and “Anglo-American” models of accounting basing on analysis of appropriate materials and analysis of experience gained by the CIS-countries through implementation of the accounting system reforms are made. The resulting findings stand to reason that it is necessary to implement the accounting system reform, and the reform process will inevitably be accompanied with the need to resolve numerous serious problems of organizational and social nature. © 2004 Bull. Georg. Acad. Sci.
Key words: accounting, reporting, reform, standards.
Philology
M. Maisuradze
Chekhov in Mikheil Kvlividze’S TranslationS
Presented by Corr. Member of the Academy E. Khintibidze, July 8, 2003
ABSTRACT. We consider Georgian translations of Chekhov’s plays: ,,The Cherry Garden”, ,,The Seagull”, and ,,Ivanov” done by M. Kvlividze. Being very close to the original text the translator created an independent artistic wholeness in his own language. Kvlividze rightly rendered the spirit rather than the letter of Chekhov‘s plays. © 2004 Bull. Georg. Acad. Sci.
Key words: translation, translation style, drama, originality.
History of Science
N. Sikharulidze, G. Inanishvili, R. Chagunava
TO THE HISTORY OF EXTRACTION OF TUNGsTEN ORE
Presented by Corr. Member of the Academy Sh. Samsoniya, December 9, 2003
ABSTRACT. Based on the study of the mining-metallurgic production debris obtained by archaeological excavations and according to the data available in historical sources the question about the first acquaintance with the tungsten ore (ferberite) and its use is put forward. The problem of using the complex antimony and connected with it tungsten-containing ores in ancient mining production is considered. The priority of ancient Georgian miners in tungsten discovery made in the late Bronze age is outlined. © 2004 Bull. Georg. Acad. Sci.
Key words: tungsten, ferberite, wolframite, hubnerite, scheelite, antimony.