volume 162 number 3 November-December
Member of the Academy L.Zhizhiashvili
On Multidimensional Hilbert Operators
Presented January 4, 2000
Abstract. It is established, that L.H.Loomis weak (1,1) type inequality for Hilbert transform of function of one variable is not valid for functions of several variables.
Key words: Hilbert operator, weak type inequality.
on fourier coefficients of functions of BV(p(n)¥,j) class
Presented by Member of the Academy L.Zhizhiashvili, November 16, 1999
Abstract. The generalized Wiener classes are considered. For these classes the exact order of Fourier coefficients concerning trigonometrical system is established. A property of the indices of Fourier coefficients is investigated, at which the specified exact order is achieved.
Key words: BV(p(n)¥,j) class, Wiener class Vp, Fourier coefficients concerning the trigonometrical system.
On the Wavelet Summation Methods in Orlicz Spaces
Presented by Member of the Academy L. Zhizhiashvili, September 1, 1999
Abstract. We show that if y is 0-regular wavelet or wavelet under integral condition then for function fÎL(R)ÇL*N(R) the wavelet projection, hard sampling and soft sampling operators are bounded in L*N (R) Orlicz space, where is defined by N function. This pair of spaces is exact. Also we show that if y is the wavelet, fÎL(R) and F satisfies integral condition then the above mentioned operators converge to f in LF norm.
Key words: Orlicz space, wavelet, wavelet projection, hard sampling, soft sampling operators.
On set of Divergence of Multiple Fourier-Haar Series
Presented by Member of the Academy L.Zhizhiashvili, December 21, 1999
Abstract. In the article we show, that each account F-subset of [0,1]n n-dimensional cube is divergent set of some bounded measurable functions.
Key words: Fourier-Haar Series.
The Wavelet systems as Schauder Basis for Banach Functional Space
Presented by Member of the Academy L.Zhizhiashvili, May 31, 1999
Abstract. The present paper is devoted to characterization of Banach functiononal spaces for which the Wavelet system is a Schauder basis.
Key words: Banach functional spaces, Schauder basis, associate space.
Member of the Academician M. Salukvadze, A. Topchishvili, V. Maisuradze
General Duality Principle in Nonscalar Optimization. Basic and Conjugate Problems
Presented October 5, 1999
Abstract. Some structural relations are obtained for Pareto optimal element set. The general duality principle is derived for nonscalar optimization problems.
Key words: optimization, nonscalar, duality, mapping, conjugate.
Recognition of Images by Pyramidal Quadtree Method
Presented by Member of the Academy I.Prangishvili, August 23, 1999
Abstract. In this work we have constructed an algorithm of pyramidal quadtree, which represents an image recognition and makes possible to give the volume form to information system.
Key words: quadtree, algorithm, recognition of images, system of recognition.
One Problem of Production Smoothing in Hydroenergy
Presented by Member of the Academy V.Chichinadze, October 12, 1999
Abstract. The problem of joint optimal operation of the hydroelectric power station and the accumulative hydrostation is considered. The problem is treated as a production smoothing problem. The mathematical model represents a problem of linear stochastic programming.
Key words: storage control, dynamic programming, hydrostation, criterion function, model, projecting.
L. Chotorlishvili, G. Kakabadze, I. Tutberidze
Low temperature phonon echo of Hydrogen containing Niobium
Presented by Member of the Academy J.Lominadze, October 12, 1999
Abstract. The low temperature phonon echo caused by tunneling of hydrogen atoms in Niobium has been investigated. The expression of time dependence of echo signal shape has been obtained.
Key words: echo, two-level systems, signal.
One Problem, about Mass Distribution according to Volume Density
Presented by Corr. Member of the Academy R.Bantsuri, December 28,1999
Abstract. We consider a problem on finding of volume density varying in time in the domain W Ì Rn, n ³ 3 according Poisson boundary problem.
Key words: mass distribution, equivalent distribution, volume density varying in time.
On Conjugate Trigonometric Series
Presented by Member of the Academy L. Zhizhiashvili, December 28, 1999
Abstract. Some approximate properties of Cesaro means of negative order of Fourier trigonometric series are established.
Key words: conjugated trigonometric series, Cesaro means.
On the deformation of the classes H(w (k); L(Tm))
Presented by Member of the Academy L. Zhizhiashvili, October 5, 1999
Abstract. In present work we have solved the problem of deformation of classes H(w (k); L(Tm)) (k ³ 3, m ³ 2) caused by the action of operator.
key words: modulus of continuity of k order, zygmund's condition, conjugate function, deformation of classes H(w (k); L(Tm)).
Axiomatic characterization of dimension in the class of all subspaces of Rn (for any fixed n ³ 3).
Presented by Corr. Member of the Akademy N. Bakhutashvili, October 19, 1999
Abstract. An independent system of axioms, characterizing dimension in the class of all spaces which a embedable the Euclidean n-space Rn (where n ³ 3 is a fixed natural number) is given.
Key words: dimension, space, function, axiom.
On a Generalization of the Browder Fixed Point Theorem with Application to Nash Equilibrium Points
Presented by Corr. Member N. Beritashvili, January 11, 2000
Abstract. The object of this paper is to obtain generalization of the well-known fixed point theorem of F.Browder and K.Fan, which makes possible to extend the Nash theorem for equilibrium points.
Key words: multivalued map, a-fixed point, almost convex.
Cor. member of the. Acad. Sc.R.Kiladze, M.Kachakhidze, V.Kukhianidze,
Exogenous Triggering Factor for the Large Earthguakes
Presented October 5, 1999
Abstract. The problem of the distribution of planets and "couple of planets" in the moment of the origin of the earthquakes for the Caucasus, Turkey-Greece united region has been considered.
The obtained results enable us to make following conclusions: if the definite distribution of planets or "couple of planets" can play a role of the "triggering mechanism" then for the considered regions maximum and real probabilities of getting of the planets and "couple of planets" in the definite sectors are calculated.
One interesting fact should be mentioned here: some pla-nets and couple of planets create the so-called "prohibited zo-ne" that is if the planet or couple of planets are in their prohi-bited zone, the probability of the origin of the large earthquakes is extremely small.
Key words: earthquake, triggering factor, exogenous.
R.Gigauri, M.Chabukiani, G.Mitaishvili, T.Dadianidze
Synthesis and Research of Ammoniummonoselenoarsenates (V) of Main Subgroup Elements of Second Group
Presented by Member of the Academy T.Andronikashvili, October 5, 1999
Abstract. We present a study of the ammoniummonoselenoarsenates of beryllium, magnesium and S-metals by hydrochemical method of investigation. The dependence of synthesized substances on the acids (HCl, H2SO4, HNO3) and hydroxide (NaOH,KOH) was studied.
Key words: arsenic, ammonium monoselenoarsenate, hydroxide, acid.
Corr. Member of the Academy A. Shvelashvili, I. Beshkenadze, N. Mestiashvili, N. Zhorzholiani, L. Gogua, M. Tavberidze, T. Tsutsunava
Synthesis and Study of Heteronuclear Citrates
Presented by Member of the Academy G. Tsintsadze, March 28, 2000
Abstract. Heteronuclear citrates with general formula Mg2 MeL2×nH2O [Me - Mn, Zn, Co, Fe, Cu, Ni; L - citrate ion; n=2-4] have been synthesized based on the hypothesis suggested by us for the first time. Individuality of synthesized biocoordination compounds is established using microelementary analysis; their melting temperature is measured; thermographic analysis is carried out. Investigating biostimulator, composed of the synthesized compounds, perspectiveness of its use as a supplement in poultry nutrition has been established. The effective optimum doses of biostimulator are stated.
Key words: heteronuclear coordination compounds, citric acid, premix, biostimulator, full value combined food (FVCF), leghorn, egg-layG. Darsavelidze, T. Mukhraneli, D. Gabunia L. Gabritchidze, M.Antadze
Damping Processes of Torsional Vibrations in the Specimens of Doped Silicon
Presented by Corr. Member of the Academy I. Baratashvili, September 27, 1999
Abstract. Temperature dependence of internal friction (IF) and dynamic shear modulus have been studied in the 1at%Ge-doped silicon single crystal specimen. Relaxation processes attributed to the migration of dislocations of various types were revealed. Basing on activation characteristics of the observed processes the parameters of dislocation structure such as vibrating dislocation length, Paierls barrier height, half-width of double kinks were also evaluated.
Key Words: doped silicon, internal friction, dislocation, activation energy, frequency factor.
T. Gegechkori, G. Mamniashvili
Synchronous Change of Main and Auxiliary Echo Signals in Manganese Ferrite at Excitation by Low-Frequency Magnetic Field
Presented by Corr. Member of the Academy T.Sanadze, November 5, 1999
Abstract. The synchronous change effect of main and auxiliary Mn55 nuclear spin-echo signals in manganese ferrite at excitation by a low frequency magnetic field was revealed and investigated. It undoubtedly shows, the domain wall nature of the auxiliary echo signal and its direct connection with the main echo signal.
Key words: magnetic, domain wall, nuclear magnetic resonance, nonlinear effects.
On the Theory of Hot Electrons Capture on Repulsive Centres
Presented by Corr. Member of the Academy T.Sanadze, March 7
Abstract. We have studied the ratio of critical electric field corresponding to the removing of barrier effect and field above which it is necessary to account exponential factor. With the parameters characterizing scattering mechanism the electric field range is evaluated in which the results obtained with account of additional exponential multiplier are valid. The value of electric field beginning from which it is necessary to account the mentioned exponant has been determined.
Key words: hot electrons, repulsive centres.
Lowdimensional dynamics of earthquakes temporal distribution
Presented by Corr. Member of the Academy T. Chelidze, August 23, 1999
Abstract. In this study, we have used tools of nonlinear time series analysis, for investigation of dynamics of earthquakes time distribution in the Caucasian region. We have found evidence for a low dimensional nonlinear structure of earthquakes temporal distribution obtained by consideration of time interval sequences between all events encountered in the original catalogue above some threshold magnitude.
Key words: seismicity, temporal distribution, nonlinear structure ing young generation.
L. Asatiani; E.Gigineishvili; A. Panjikidze
Synthesis and physical-chemical properties ot Ferrocene and Germanium -containing alcohol of the bisacetylene series
Presented by Corr. Member of the Academy D.Ugrekhelidze
Abstract. The interaction of dibbenzoilferrocene with lithium derivative of triethylethynylgermanium has been Studied and ferrocene and germanium containing alcohol of the bisacetylene series was prepared. The anionotropic rearrangement of this alcohol under different conditions and reduction of it by the complex LiAlH4/AlCl3 has been studied.
In the presence of HgSO4 in methanol solution the rearrangement proceeded anomalously and resulted with the formation methyl ether; in a nonpolar soloent (benzene) in the presence of HgSO4 reaction doesn’t proceed, while in the case of ClCH2COOH both -an anionotropic rearrangement and innermolecular dehydratation (predominantly) of the synthesized alcohol took place.
Key words: dibenzoilferrocene, acetylene, anomalously, anionotropic rearrangement, function, methylether, ferrocenophane.
N.Sidamonidze, R.Vardiashvili, R.Gakhokidze, L.Tabatadze, M.Tetradze
Synthesis of D-xylo, L-arabino and L-rhamnosaccharinic Acids Derivatives
Presented by Corr. Member of the Academy L.Khananashvili, B.Alkhazava
Abstract. D-xylose, L-arabinose, L-rhamnose under the action of lead (II) hydroxide are subjected to acidic transformation and a,b,D-xylosaccharinic, a,b-L-arabinosaccharinic and a,b-L-rhamnosaccharinic acids are derived. Calcium salts of acids and 1,4-lactones have been obtained.
Key words: D-xylose, L-arabinose, L-rhamnose.
R. Gakhokidze, N. Sidamonidze, N. Itriashvili, S. Mamulia, N. Bogveradze
On the Problem of Carbohydrates Acid Rearrangement
Presented by Member of the Academy L. Khananashvili, December 28, 1999
Abstract. To study mechanism of carbohydrates acid isomerization synthesis of 3,5,6-tri-O-methyl-D-glucofuranose deuterated at anomeric carbon atom from D-glucono-1,4-lactone is performed.
It has been established, that acid rearrangement proceeds by the intramolecular mechanism and migration of deuterium atom located at the first carbon atom to the second carbon atom takes place. This corresponds to the supposition on possible mechanism of this reaction stated earlier.
Key words: carbohydrates, acid rearrangement.
N.Maisuradze, E.Gavashelidze, N.Dokhturishvili, G.Papava
Investigation of Kinetic Regularity In Interaction Between the Bisphenole Fragments-Containing Dioles with Diisocyanates
Presented by Academician T.Andronikashvili, Octpber 12, 1999
Abstract. Some kinetic regularities of interactions of the phthalide-group-containing primary and secondary dioles with 2,4-toluylene-diisocyanate, have been investigated. The constants of reaction velocity, reaction series, and activation energy were determined.
Key words: Bisphenole, Phthalidic dioles, Diisocyanate, Velocity constant, Reaction series, Activation energy.
Ts. M. Ramishvili, M. K. Charkviani
Isomerisation of o-xylene on the Pentasil Type Zeolite Prepared by Pecrystallization of Natural Clinoptilolite
Presented by Member of the Academy T.Andronikashvili, August 2, 1999
Abstract. Para-selectivity of decationated pentasil (SiO2/Al2O3=23) prepared by recrystallization of acid-leached clinoptilolite of Khekordzula deposit (Republic of Georgia), in the isomerization reaction of 0-xylene at 531-723K is demonstrated. Corresponding para-selectivity - the ratio of p-xylene and m-xylene contents (p/m) - equals 0.48-0.63. The yield of p-xylene at 723K makes up 88% of equilibrium value.
Key words: clinoptilolite, pentasil catalyst, o-xylene isomerization.
R. Kvaratskhelia, E. Kvaratskhelia
Study of Debromination of Bromoacetic Acid at the Solid
Presented by Corr. Member of the Academy J. Japaridze,, July 2, 1999
Abstract. Voltammetry of bromoacetic acid at the electrodes from Pt, Cu, Cd, Cu-Hg and alloys of Cd with Sn, In, Ni, Pb, Hg, Ag in various aqueous solutions has been studied. The main kinetic parameters of the bromoacetic acid debromination process have been determined. The influence of the solution composition and electrode nature has been explained.
Key words: bromoacetic acids, voltammetry, electrode, wave, reduction, debromination.
M. Tvalchrelidze, N. Mamatsashvili, R. Khazaradze, I. Sharashenidze, N. Qisishvili
Paleogeography of Colkheti Seacoast in Late Pleistocene and Holocene
Presented by Member of the Academy I.Gamkrelidze, September 14, 1999
Abstract. Colkheti seacoast represents a single integral body from genetic point of view. Late Pleistocene and Holocene eustatics of the Black Sea and the World Ocean, volume of the river’s solid run-off, neotectonic movements, morpho- and lithodynamics of the seasidal zone played a decisive role in formation of its up-to-date landscape. Its main elements started to form in Middle Holocene, after the new Black Sea transgressive phase.
Key words: coastline, regression, paleorivers, erosion, transgressive pollen, woody plant.
On Elaboration of Unique Criterion of Broken Material
Presented by Corr. Member of the Academy L.Japaridze
Abstract. We consider basic indices of estimation of stable medium fragments broken by explosion and their drawbacks. On the basis of these indices corresponding completeness and their integration the unique criterion of fragments estimation has been elaborated by which the establishment of real rate of destruction is necessary.
Key words: destruction, explosion, fragments unique criterion.Z.Jabua, T.Dadiani, A.Gigineishvili, M.Stamateli, G.Mazmishvili
Preparation of b-Yb5Sb4 Thin Films
Presented by Member of the academy G.Gvelesiani, October 5, 1999
Abstract. Technology of preparation of thin b-Yb5Sb4 films by vacuum thermal evaporation from two independent sources has been worked out. Composition of prepared films has been determined by using the X-ray microanalysis.
Key words: film, rare earth element, lattice parameter, ytterbium, antimony, substrate, X-ray diffractogram.
Time Characteristics of Discrete-time Solition
Presented by Corr. Member of the Academy V.Chichinadze, October 9, 1999
Abstract. The expression of discrete-time solition has been obtained. It depends on two parameters. The First one determines the frequency of discrete solution, whereas the second one presents dislocation of the solition itself on the axes of time.
Key words: discrete-time, parameter, solition, differential-difference, equation.
I.Mikadze, N.Kutsiava, E.Topuria
Reliability of a Combined Control Enginering System
Presented by Corr. Member of the Academy A.Prangieshvili, January 2000
Abstract. we consider the analysis of engineering system reliability when its functionability is checked with combined control: random failures are checked continuously and parametric ones - periodically. All characteristics of reliability necessary for their design are obtained.
Key words: random failure, reliability.
Intensive Technology of Bamboo Planting Material Production in Kolkheti
Presented by Member of the Academy G.Gigauri, March 14, 2000
Abstract. The present article discusses the problem of organizining the seed-plot and creating the intensive technology for germination of its planting material for Kolkheti lowland conditions.
Key words: bamboo, planting material, Kolkheti lowland.
The Effect of Prolonged Application of Potassic Fertilizers on Qualitative Indices of Mandarine Fruit
Presented by Member of the Academy G.Tsintsadze
Abstract. The application of potassic fertilizers helps to increase total acidity, sugar content and vitamin C in skin and flesh of mandarine fruit. Among potassic fertilizers K2SO4×MgSO4 variant is distinguished qualitative indices of mandarine fruit in improving on the second place is K2SO4 and on the third place is KCl.
Key words: mandarine fruit, potassic fertilizers.
Ts. Mikatadze-Pantsulaya, Z. Gamtsemlidze
Study of the Seed Reproduction Process of some Species of Saxifraga (Saxifragaceae)
Presented by Corr. Member of the Academy G. Nakhutsrishvili, October 12, 1999
Abstract. The whole pattern of embryological development of three species of Saxifraga genus has been studied. The formation of male generative sphere of species studied takes place in different time, proceeding mainly normal formation is as follows. The study of female generative sphere revealed the significant disturbances in the process of its development.
Key words: seed reproduction, embryology, male and female generative sphere, pollination-fertilization, embryo, endosperms.
The Fodder Grasses’ Productivity of the Saguramo-Yalno Ridge, Estimated by the Agricultural-Botanical Fractions
Presented by the Corresponding Member of Academy I.Eliava, 1999
Abstract. The paper deals with the weight volume of the fodder grasses distributed on the northern slope of the Saguramo-Yalno Ridge beech forests, where mainly the secondary, post-forest, fields are developed.
Key words: Cereals, Sedge, Leguminous plants, Mosses, Lichens, Grass remnants.
N. Datukishvili, G. Tarkhnishvili, D. Mikeladze, Member of the Academy G. Sanadze
Investigation of the Enzymatic Mechanizm of Isoprene
Presented May 23, 2000
Abstract. A protein, transforming dimethylallyl diphosphate (DMAPP) into isoprene in vitro, has been isolated from the leaves of aspen (Populus deltoides Marsch.). The optimum conditions are determined for the enzymatic reaction. The maximum of isoprene synthase activity is revealed at pH 8,0 and temperature of 370C. Ions Mg2+ activate the enzyme. The enzymatic production of isoprene is investigated during 60 min. The results obtained indicating the enzymatic way of isoprene formation in the plant leaves.
Key words: leaves of aspen, isoprene synthase, protein isolation, gas chromatography.
J. Kapanadze, I. Guledani, G. Chanturidze
Global warming for problems of genetics
Presented by Corr. Member of the Academy D. Jokhadze, October 26, 1999
Abstract. Plants, which accomplish utilization of CO2 in carbohydrates can be used for liquidation of global warming. Such plants are both, diploids and polyploids. From the studied plants according to their biomass the first place takes “Squirting cucumber” (Ecbalium ellaterium) and the last place takes “Soft wheat” (Triticum aestivum).
Key words: Global warming, greenhouse effect, and utilization.
Member of the Academy K.Nadareishvili, I.Meskhishvili, G.Ormotsadze, G.Onoprishvili, D.Kakhiani
Comparative Study Of Heart Rate Variability (Hrv) In Naturally Aggressive And Nonaggressive Rats
PresentedAugust 23, 1999
Abstract. By a complex study of HRV in naturally aggressive (mice-killer) and nonaggressive rats statistically significant differences were found in time-domain and time-derivative parameters, as well as in spectral density variations within respiratory rate and vegetative nervous system activity domain-specific frequencies. Aggressive by nature rats differ from nonaggressive ones by a significant predominance of parasympathetic nervous system activity. Possible mechanisms of this feature and its implication for experimental biomedicine are discussed.
Key words: Heart rate variability, rat, aggressive behavior, mice-killing.
Human and Animal Physiology
L.Kvirkvelia, D.Jamaspishvili, M.Kubaneishvili, M.Kuprashvili
Influence of Automatic Behaiour on Discriminative Learning
Presented by Member of the Academy T.Oniani, August 2, 1999
Abstract. The experiments were carried out in 4 cats in three series. First, the animals were trained to perform a conditioned automatic movement to one feeder. Numbers of trials were 224, 230 and 285 in three cats. Then a new conditioned instrumental reflex was elaborated to the opposite feeder. Finally, the trained and control cats were engaged in discriminative learning tasks. The results demonstrate that behavioural automaticity and discriminative learning have distinct and contradictory nature. They are based on memory forms differing by their structure. Attention is not involved in automatic behaviour but inevitably participates in discriminative learning. Time duration of automatic behaviour is an important factor determining the strength of retention in the brain.
Key words: memory, automatic behaviour, discriminative learning, attention.
Human And Animal Physiology
N. Nebieridze, A. Koreli
Cholinergic Control of Emotional Memory in Rats
Presented by Member of the Academy T. Ioseliani, September 14, 1999
Abstract. Possible role of cholinergic input to hippocampus is considered in cognitive and emotional processes. With an aim to elucidate this problem influences of septal lesion, acetylcholinestherase inhibitor (galanthamine), and acetylcholine receptor blocker (atropine) were tested in Punished Water Drinking conflict test, in adult rats. It was found that septal lesion significantly decreased shock-induced memory retention, atropine insignificantly decreased retention time, while galanthamine significantly increased aversive memory retention. These results corroborate the notion that hippocampal theta-activity correlates with negative emotions and with improvement of aversive learning processes.
Key words: septum, punished water drinking, acetylcholine, atropine, galanthamine aversive behavior, rats.Human and Animal Physiology
C. Goletiani, Z. Nanobashvili
The Role of the Thalamic Reticular Nucleus in the Rats’ Passive Avoidance Responses
Presented by Member of the Academy T.Oniani, September 27, 1999
Abstract. Influence of the rostral thalamic reticular nucleus (TRN) ablation on the rats’ passive avoidance reactions - in step-through and punished water drinking tests - was investigated. As compared with the control animals, experimental rats have shown significant disorders in the memory processes.
Key words: step-through test, punished drinking test, thalamic reticular nucleus, brain lesions, memory, emotion, rats.
G. Managadze, M. Pirtskhalava, Member of the Academy M. Zaalishvili
On Conformational Possibilities of Poly (L-Glutamic Acid)
Presented September 6, 1999.
Abstract. Conformational analysis of the (Glu)10 in uncharged and in charged states have been done in the regular main chain approximation. The electrostatic interactions have been estimated using three different values of electrostatic constants (e): e=4, e=R (R is a distance between interacting atoms) and conformationaly dependent values of e for each atom-atom interaction. The last evaluations of e are done accordingly as proposed by our method. The result of analysis allows us to suppose that the side chain charging changes the conformational possibility of the (Glu)10 homopolypeptides, making the extendent helix conformation more preferable relative to other conformations and a- helical conformation as well.
Key words: dielectric constant, uncharged and charged poly (L-Glu).
P. Tkhelidze, O. Buadze, N. Shengelia, K. Jokhadze, M. Ebelashvili
The Effect of DNOK and its Predecessors on Cell Ultrastructure of Vine Leaves
Presented by Corr. Member of the Academy N. Nutsubidze, August 23, 1999
Abstract. It was stated that pesticide DNOK is toxic for cells of vine leaves. Some attempts have been made to determane functional radical in pesticide molecule responsible for toxicity of preparation. It has been shown that such compounds as o-nitrophenol, n-nitrophenol, o-crezol, 2,4-dinitrophenol totally destruct the ultrastructure of leaves indicating easy transfer of these substrates while benzole, phenol, n-nitrobenzole didn’t have such effect. It’s supposed that toxicity depends on the presence of definite (NO2) functional groups and their position in the molecule.
Key words: vine leaves, chloroplast ultrastructure, herbicide.
N.Kuprava, M.Betsiashvili, T.Sadunishvili, Corr. Member of the Academy N.Nutsubidze
Ammonia Assimilation in Soy a Seedlings of Different Varieties
presented September 21, 1999
Abstract. Glutamine synthetase and glutamate dehydrogenase activities, as well as protein spectrum of cultivated in Georgia leaves and roots of young seedlings of different soya varieties have been studied. It has been stated that protein content is 5-fold higher in leaves as compared with roots. isoelectrofocusing of leaf and root proteins revealed that leaf proteins spectrum is more diverse. Difference in protein spectrum of studied varieties is little. Glutamine synthetase and glutamate dehydrogenase activities are higher in roots as compared with leaves. With plant ageing, while glutamine synthetase activities decrease in vegetative organs, glutamate dehydrogenase activities sharply increase, independently from protein amount change. The increase of glutamate dehydrogenase activities is more significant in roots, indicating the participation of glutamate dehydrogenase in ammonia assimilation in this organ.
Key words: soya varieties, glutamine synthetase, glutamate dehydrogenase, ammonia assimilation, protein spectrum.
M. Khurtsidze, Z. Lomtatidze, T. Shiukashvili, G. Alexidze,
Corr. member of the Academy N. Aleksidze
The Impact of Plant Seed Protein Fractions with Lectin Activity on Multiplication of Bacteria and Actinomycets
Presented September 6, 1999
Abstract. It has been established that under the action of the protein fractions with lectin activity extracted from germinated and ungerminated plant seeds the inhibition of the growth and development of some bacteria and actinomycets takes place. It is supposed that the plant seed lectins may have defensive function against bacteria and actinomycets.
Key words: Pea lectins, plant seeds lectins.
V. Tabidze, N. Chiaureli, L. Sakvarelidze
Flower-specific Cytochrome P450 from Sunflower: Structural Similarity with the Plant Cytochrome P450
Presented by member of the Academy T. G. Beridze August 8, 1999
Abstract. Sunflower cytochrome P450 sequence comparison analysis with the several representatives of the plant P450 was studied. Graphic matrix analysis of these protein sequences revealed presence of the short regions which are similar among the plant P450 in a different species. Maximum score sunflower cytochrome P450 was shown with the Arabidopsis Biochemistry
T. Jariashvili, G. Kharebava
Influence of Constituents of the Synaptosomal Factor on the NaK-ATPase activity
Presented by Member of the Academy T. Oniani, September 28, 1999
Abstract. Fractionation of the Synaptosomal Factor by HPLC recovered two active fractions that show influence on the NaK-ATPase activity. One of them is high -molecular-weight proteinous fraction and possesses ability of elimination the inhibitory effect of noradrenalin, and the second, directly inhibits the enzyme. This activity was not observed in preparations obtained after subsequent fractionation of the activatory fraction by the ion exchange HPLC. Even more, there was prominent reversed action, particularly, deepening of the enzyme inhibition by the noradrenalin. The full-fledged interpretation of the results currently is not possible and it needs further investigations but must be noted that enzyme activation effect might be caused by multicomponent complex.
Key words: NaK-ATPase, Synaptosomal Factor (SF), noradrenalin (NA).
microbiology and virology
Lysine Biotransformation during Secondary Alcoholic Fermentation
Presented by Member of the Academy G.Kvesitadze, November 6, 1999
Abstract. Lysine conversion products in yeast and wine were studied during condary alcoholic fermentation. Lysine carboxylic carbons available in the fermentation medium were shown to be incorrporated in the yeast biomass. They participate in the synthesis of wine amino- and organic acids. It has been established that in the process of champagnization asparagine and glutamic acid are the chief products of lysine conversion in yeast and wine. Of organic acids glyoxylacid is the basic one in wine. During secondary alcoholic fermentation lysine carbon skeleton is partially oxidized to carbon dioxide.
Key words: lysine, aspartic acid, glutamic acid, yeasts, organic acids, amino acids.
E. Ordjonikidze, M. Machavariani
Determination of Hectare Ecological Indices of some preparations Used Against Grape Moth
Presented by Corr. Member B. Kurashvili, August 2, 1999
Abstract. We present the indices of per hectare ecological load for preparation used against grape moth. It is ascertained that per hectare ecological load is much less when using synthetic piretroids than phosphate-organic insecticides.
Key words: ecological load, piretroid, phosphate-organic.
P450 where 9 regions of similarity were observed. 7 regions were found with tomato, and only 2 regions with the Glycyrrhiza and Catharanthus P450. Among structural domains two out of four, domains B and D were showing high conservation among plant P450. These regions of similarity may correspond to conserved functional regions and should improve our understanding of the evolution of these proteins.
Key words: cytochrome P450, sequence analysis of the plant cytochrome P450.
Ultrastructural Peculiarities of Erythrocytes during Atherosclerosis
Presented by Member of the Academy T.Chanishvili, September 21. 1999
Abstract. Structural and ultrastructural peculiarities of erythrocytes during atherosclerosis revealed that the change of erythrocytes is connected with the presence of nonspecific antigen.
Key words: erythrocytes, atherosclerosis, membrane.
Some Data on Normocytes Physical Indices after Extracorporeal Use of Laser
Presented by Member of the Academy T. Chanishvili, January 10, 2000
Abstract. Laser radiation acts on membrane and makes its depolarization. This promotes the release of membrane from toxic agents fixed on it. On the other hand, during change of erythrocytes structural parameters laser radiation regulates membrane permeability stimulating active transformation of iones.
Key words: laser radiation, normocytes, erythrocytes.
Kh.Gabisiani, R.Solomonia, V.Bakhutashvili
Antioxidating Properties of the Plaferon-LB
Abstract. Plaferon LB (PLB) is a mixture of biologically active compounds from human placenta amniotic membrane. Due to its immunomodulatory, antiishemic, antitoxic and anti-inflammatory properties PLB is widely used in clinical practice. Lipid peroxidation is a well-established mechanism of cellular injury and this process occurs in association with certain pathological conditions. Present study was aimed to investigate if PLB possesses antioxidant properties. Following products of lipid peroxidation were measured: malondialdehyde (MDA) and MDA plus 4-hydroxyalkenals (4-HAE). Experiments were carried out with three types of rat brain and liver P2 membrane fraction and human plasma: (1) control untreated; (2) incubated with Fe2+ during one hour and (3) treated simultaneously with Fe2+ and PLB for the same period of time. It was shown that PLB causes significant decrease in the Fe2+ induced elevated amount of MDA (but not MDA + 4-HAE). Effect is dose-dependent and is achieved by the cliPsychology
Characteristic Features of Psychic Status, Self-Evaluation and Traumatic Stress Factors in Patients with Renal Failure
Presented by Member of the Academy Sh. Nadirashvili, October 19, 1999
Abstract. We have studied the psycho status, real and ideal "Self" idol, traumatic stress factors, level of self-evaluation and interrelations among psychic status, "Self" idol and personal self-evaluation characteristics in the patients with renal failure.
Key word: Renal failure; Self-evalution, Real self, Ideal self.
History of Science
G. Banetishvili (Baneli), L. Banetishvili (Baneli)
Principles of „À” and „” letter-marks origin and their ideographical names
presented by Member of the Academy G. Tsitsishvili, November 16, 1999
Abstract. The ideographical name ("ar" - the sun) of shumerian goddess of harvest fertility and the geometric drawing of the corresponding letter-mark are studied.
Key words: Georgian alphabet, letter-marks, “ar”-containing words.
G.Gigolashvili, T.Dalalishvili, R.Goglidze, Coir. Member of tile Academy D.Jokhadze
Specifics of Bud Proteins from Some Mulberry Tree Breeds Revealed by the Method of Isoelectric Focusing
presented Septernte 11, 1999
Abstract. The differences between 19 breeds and varieties of mulberry (M. alba) by the is protein isoelecetric focusing method have been shown. The 3 bands of proteins specific for japanese breeds and 1 band for non-japanese ones were found. They can be used as geographical markers.
Key words: bud protein, mulberry.
nically proved concentrations of PLB.
Key words: Plaferon-LB.
Thomas Cranmer - the English Reformation Patriarch
presented by Member of the Academy M.Lortkipanidze, October 17, 2000
Abstract. The present work dials with the Reformation movoment started in England in 16th century, its religious leader and the hard way the Protestant faith passed before its formation into Anglicanism as one of its varieties.
Thomas Cranmer, the Primate of England, developed new religious doctrines confirming the difference of Anglican Church and its separation from Roman Catholic Church. These doctrines are briefly analyzed in this paper and an attempt is made to explain the fact the religious norms of faith and litany composed by Cranmer in the middle of 16th century is in use today without any significant alterations.
Key words: Reformation, Anglicanism, Protestantism, the Primate of England.
Abbe Gaudereau and his Stories about Persia Written in letters, to a Friend in Franlce (1701)
presented by Member of the Academy G.Sharadze, March 21, 2000
Abstract. The information of French traveller Senor Abbe Gaudereau and his writings kept in the National Library in Paris is given. A part of the manuscript about Georgia has been translated for the first time into Georgian.
Key words: ecclesiastic missionary, French traveller, manuscript, the orient, Georgia.
William Faulkner: Concept of Frozen Moment
presented by Member of the Academy A. Gvakharia, February 16, 2000
Abstract. The article deals with the problem of `frozen moment` in the works of the major American writer William Faulkner. The essence of this phenomenon as well as its aesthetic function has been studied to reveal basic innovations in time/space modelling in the modern novel.
Key words: Faulkner, frozen moment, subjective time, stasis.