On Vallee-Poussin Differentiated Integral on the Sphere
Presented by Member of the Academy L.Zhizhiashvili, March 28, 2006
Notation of Laplacian operator on the sphere k-1 and that of Laplacian
generalized operators of the first and the second orders are introduced. By
means of those operators sufficient conditions for convergence of the
differentiated twice Vallee-Poussin integral are proved.
© 2006 Bull. Georg. Natl. Acad. Sci.
Key words: Vallee-Poussin singular integral, Laplace operator, generalized Laplace operator.
G. Chelidze, A. Shangua
A Contrexample Related to Permutational Cesaro Summability
Presented by Member of the Academy N. Vakhania, March 31, 2006
Abstract. We construct an example of a sequence of reals Cesaro convergent to zero such that there is a permutation of the sequence having no Cesaro convergent subsequence. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: Cesaro summability, permutation of a sequence.
Z. Kiguradze, M. Aptsiauri
Large Time Behavior of the Solutions and Finite Difference Scheme for One System of Nonlinear Integral-Differential Equations
Presented by Corr. Member of the Academy R. Bantsuri, April 4, 2006
Abstract. The asymptotic behavior of solutions of nonlinear system of integral-differential equations as associated with the penetration of a magnetic field into a substance is studied. The rates of convergence are given. The corresponding difference scheme is considered too. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: system of nonlinear integral-differential equations, magnetic field, asymptotic behavior, finite difference scheme.
L. Zivzivadze, E. Japaridze
On Approximation of Functions Mapping Conformally Neighbouring Domains
Presented by Corr.Member of the Academy R.Bantsuri, May 16, 2006
ABSTRACT. Problem of approximation of functions mapping conformally neighbouring domains is considered. The order of proximity of conformally representative functions in generic part of doubly connected domains is estimated according to neighbourhood of those domains. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: mapping, conformally mapping function, neighbouring domains.
A.L.Chobanyan, S.A.Chobanyan, V.S.Mandrekar, M.W.Mutka
Some Applications of Transference Lemma to Compact Vector Summation
Presented by Member of the Academy N.Vakhania, May 8, 2006
Abstract. We find an estimation for the problem of dynamical compact vector summation for a general norm. An algorithm based on the transference lemma is constructed reducing the problem to the well-known combinatorial problem of choosing signs. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: transference lemma, compact vector summation, sign algorithm.
The Resonance Theorem for the Double Denjoy Integral
Presented by Member of the Academy L. Zhizhiashvili, May 23, 2006
ABSTRACT. There is extended the resonance theorem to D-integrable function f of two variables. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: D-integrable function, a function of bounded variation. (BV).
Multiplicities of Roots of Quaternionic Polynomials
Presented by Member of the Academy N. Berikashvili, June 20, 2006
ABSTRACT. The topological structure of the zero-sets of quaternion polynomials is discussed. As was earlier proved by the author, such a zero-set consists of several points and two-dimensional spheres with the centers on the real line. In the present paper we show that one can define multiplicities of components of each type in such way that their sum is equal to the algebraic degree of the polynomial considered. The effective method of finding a number of both type components is suggested. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: quaternion polynomials, zero-set, algebraic multiplicity, geometric multiplicity.
G. Manelidze, A. Papukashvili
Approximate Solution of some Linear Boundary Value Problems by Approach Alternative to Asymptotic Method
Presented by Corr. Member of the Academy R. Bantsuri, May 30, 2006
ABSTRACT. Problems of approximate solution of some linear nonhomogeneous operator equation is studied with an approach alternative to asymptotic method. Our alternative method is based on representation of unknown vector over the small parameter with orthogonal series instead of asymptotic one. In such a case system of three-point operator equations of special structure is received. For system solving a certain regular method is used. On the basis of the suggested method the programming production is created and realized by means of computer. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: nonhomogeneous operator equation, asymptotic series, orthogonal series, asymptotic method, alternative method.
Peter V. Danchev
Isomorphism Classifications of Maximal Divisible Subgroups in Modular Group Rings
Presented by Member of the Academy N. Inassaridze, June 26, 2006
ABSTRACT. The complete set of invariants for certain divisible groups in commutative modular group rings is given. Explicit formulae are also established.
In particular, a comprehensive strategy for the full description of normed unit p-groups (p a prime) is developed, provided the GDFC (=Generalized Direct Factor Conjecture) holds in the affirmative.
These achievements strengthen our recent results in (Radovi Mat., 2004) and supersede results due to N. Nachev (Comm. Algebra, 1995) as well. © 2006 Bull. Georg. Natl. Acad. Sci.
Keywords: group rings, divisible groups, isomorphic classifications.
L. Makharadze, Corr. Member of the Academy T. Iamanidze
Generalized Algorithm for Calculation of Hydraulic Shock Bampers with Elastic Working Organs Made of Elastomers Filled with Air
We describe generalized calculation algorithm for hydraulic shocks with elastic
working organs, which have forms of sphere, torus, hose, made of elastomers and
filled with air.
© 2006 Bull. Georg. Natl. Acad. Sci.
Key words: hydraulic shock, pipeline, pressure, sphere, torus, hose, air, damper.
THEORY OF ELASTICITY
The Problem of Bending of Contracted Homogeneous Anisotropic Bar by Transversial Force
Presented by Corr. Member of the Academy R.Bantsuri, June 6, 2006
ABSTRACT. In the paper the problem of bending of the homogeneous anisotropic contracted bar transversal force is investigated. Posed problem is reduced to the solution of plane boundary problems and there solvability is shown. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: bending problem, transversal force.
G. Lezhava, I. Kamkamidze, Z. Berikishvili, E. Mkrtchian, A. Vardosanidze
The Semantic Information and Formation of “Base of Knowledge”
Presented by Member of the Academy V. Chavchanidze, May 2, 2006
ABSTRACT. New approach to a problem of creation of the theory of the semantic information is considered. The approach is based on the representation of the receiver of the information as the system of an inductive conclusion. Two sides of semantic information effect have been revealed: the current actual information effect and the information effect forming base of knowledge. The criteria of a quantitative estimation of these effects are entered. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: inductive conclusion, optoelectronic processor, theory of the semantic information, information effect.
R. Shamugia, R. Kukava
Model of Estimation of Operation Effectiveness of Nondependable Technical Systems
Presented by Corr. Member of the Academy A.Prangishvili, April 7, 2006
ABSTRACT. In the recent decade the Recommendation E.862 “Dependability planning of telecommunication networks” developed by Swedish specialists on the commission of International Telecommunication Union (ITU) became one of the main sources of new fruitful tendencies in the theory of dependability (particularly, in mathematical theory of dependability). It was really approved in 1992 and served as a stimulus of the activity for many specialists.
The Recommendation E.862 pays a particular attention to the models and methods of dependability planning, design, operation and technical maintenance of telecommunication networks and to the problems of applying these methods to various services of international network. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: failure, renewal, replacement, closed queuing system.
M. Namtalishvili, N. Basharuli, Member of the Academy T. Sanadze, P. Magalashvili
Detectors for Nuclear Spectrometry Based on Ce-Activated Lutetium-Yttrium Oxyorthosilicate Single Crystals
Presented June 20, 2006
ABSTRACT. Scintillation characteristics of lutetium-yttrium oxyorthosilicate single crystals, activated by Ce (Ce2-x( Lu1-yYy ) 2(1-x) SiO5) with dimensions of [ 10x10x2 ] mm3 and [ 10x10x10] mm3 were received. The best optically homogeneous crystal samples were of the following parameters: energy resolution over 137Cs - not less than 10 -11 %; decay time - not more than 41-43 ns; light yield – relative NaI(Tl) – 90-97 %. In the course of the work radioactive sources 137Cs and 22Na were used. The afterglow of these crystals has also been researched. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: crystal, luminescence, detector, tomography, nuclear, light yield, decay time, energy resolution, lattice after glow, admixture.
E. Khalvashi, M. Chkhartishvili, G. Kakhiani
Angular Dependence of Relaxation Times and Line Shape of Electron Paramagnetic Resonance in La0.95Sr0.05MnO3
Presented by Member of the Academy T.Sanadze, July 4, 2006
Abstract. For La1-xMexMnO3 samples (where Me=Sr, Ca, Ba,... , and x is the Me concentration), containing localized spins with the Dzyaloshinsky-Moriya (DM) interaction, above the Neel temperature, expressions for transverse (Tx, Ty) and longitudinal (Tz) relaxation times determining the line shape and line width of electron paramagnetic resonance (EPR) of localized spins are given.
The results of the performed analytical investigation of the angular dependence of transverse and longitudinal relaxation rates can foster new experiments and become very useful for solution of problems of applied character. The expressions for EPR line width obtained in the work are in complete agreement with the data of previous theoretical and experimental investigations. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: relaxation times, electron paramagnetic resonance.
V. Bochorishvili, S. Tsereteli
Solar Activity and Cosmogeneous Isotopes During Last 350 Years
Presented by Member of the Academy J.Lominadze, July 11, 2006
ABSTRACT. In the article a question of connections
between solar activity and cosmogeneous isotope concentration existing several
hundred years is studied. For this aim the results of annual radiocarbon
measurements obtained at Tbilisi State University, at Washington University and also data of 10Be and sunspot
numbers measurements were used. It is shown sunspot numbers can be well
described with a modulation function Am(t)cos2(2pt/T(t)+Fm(t)). It is also shown that dependence between long-term
periodicities of cosmogeneous nuclide formation rate and sunspot numbers was
linear. Strong influence of local various factors on short-term variations of
isotopes is established with spectral analysis. Supposition that the ~20 year
periodicity in radiocarbon data found during Maunder minimum is not caused by
solar modulatory effect, is suggested.
© 2006 Bull. Georg. Natl. Acad. Sci.
Key words: Sun, solar activity, Maunder minimum, Dalton minimum, cosmogeneous isotopes, radiocarbon, 14C, 10Be.
I. Shengelia, Z. Javakhishvili
Study of Coda QC According to Broad Band Seismic Data
Presented by Corr. Member of the Academy T. Chelidze, May, 8, 2006
ABSTRACT. The coda wave attenuation quality factor QC at the Javakheti plateau and at the area located at the north of Tbilisi from 11 local earthquakes recorded by broad band seismograph have been estimated. The QC was estimated using the single-scattering attenuation model in the frequency range from 0.62 to 40 Hz. The analyzed events were recorded at epicentral distances up to 80 km and their magnitudes vary from 2.5 to 4.3. In the north of Tbilisi we found that QC = (110 ± 15)f0.6 in the indicated frequency range and QC = (100 ± 15) f0.4 for the Javakheti Plateau in the frequency range from 40 to 10 Hz. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: coda QC, envelope, single-scattering model.
M. Alania, K. Iskra, M. Siluszyk
New Index for Characterisation of the Long-Period Modulation
of the Galactic Cosmic Rays Intensity
Presented by Corr.Member of the Academy T.Chelidze, June 13, 2006
ABSTRACT. It has been shown that time changes of hard spectrum of long-term variations of cosmic rays intensity can be represented as the new index to study the characteristics of cosmic rays intensity and 11-years cycle of solar activity. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: cosmic rays, solar activity, hard spectrum, long-term variations.
T. Adeishvili, L. Khvedelidze, M. Bardavelidze, A. Gabeshia
One Physical Model of an Increase in Carbon Dioxide Concentration in the Upper Layer before Strong Earthquakes
Presented by Member of the Academy J. Lominadze, July 11, 2006
Abstract. Various geochemical precursors develop before an earthquake. One of them is carbon dioxide, the concentration of which frequently increases significantly in underground waters before an earthquake. Researches prove the opinion, that carbon dioxide is a reliable precursor of an earthquake. The diagram shows variations of carbon dioxide concentration during the 24 october 1992 Dusheti earthquake. The research states possible mechanisms causing sharp variations in the concentration. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: earthquakes, geochemical precursors, carbon dioxide, variations of concentration.
V. Gverdtsiteli, K. Kupatadze, G. Gamziani, M. Gverdtsiteli
Classification and Enumeration of Alkanes within the Scope of Mathematical Chemistry
Presented by Corr. Member of the Academy Sh. Samsonia, July 26, 2006
Abstract. The effective method of classification and enumeration of alkanes is considered. The formulae for calculation of the amounts of families are represented. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: alkanes, classification, enumeration, families.
J. Bagdavadze, Member of the Academy G. Gvelesiani, I. Janelidze, M. Jlantiashvili
Thermodynamic Analysis of Carbide and Cr2O3 Interaction at Atmospheric Pressure and in Vacuum
Presented May 30, 2006
ABSTRACT. The thermodynamic analysis of Cr2O3 - carbide system is carried out with initial compositions corresponding to the stoichiometry of the following reaction
Cr2O3 +13/3 C = 2.3 Cr3C2 + 3 CO
The main results are represented in diagrams. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: carbide, condensed carbon, metallic chrome.
Corr. Member of the Academy Z.
Tatashidze, K. Tsikarishvili, J. Jishkariani,
K. Rakviashvili, G. Geladze
The Morphometric Analysis of Abyssal Karst of Georgia
Presented May 15, 2006
ABSTRACT. Due to speleological researches carried out at Arabika and Bziphi limestone massifs in the recent years there were revealed the deepest karst caves of the world A. Kruber, V. Pantiukhin, Tovliani-Mezheni as well as the water-bearing hydrogeological systems of Napra-Mtchishta-2345m, Iliukhin-Reprua-2307 et al. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: cave, pit, well, karst hollow.
History of Lake Paliastomi and the Problem of Localization of Fasisi
Presented by Corr. Member of the Academy Z. Tatashidze, May 6, 2006
Abstract. The existence of partially flooded forest-meadow is determined in the area of Lake Paliastomi 6500-6800 years ago. It was substituted with peat bogs 4500-6500 years ago. 3900-4500 years ago the peat bogs were formed into salty type sea lagoon separated from the sea by sand dune 3200-3500 years ago. Since then the history of the fresh water Lake Paliastomi has begun. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: bore hole, lithology, stratigraphy, sapropel, diatomic algae.
M. Akhalkatsishvili, B. Tutberidze
On the Problem of the Presumable Causes and Age of the Javakheti Volcanic Plateau Glaciation
Presented by Corr. Member of the Academy D. Shengelia, July 4, 2006
ABSTRACT. The paper deals with the causes of glaciation: volcanism, tectonics, orogenic processes and carbon dioxide (CO2) on Javakheti upland. According to our data the beginning of glaciation coincides with the boundary of the Middle and Late Pliocene. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: glaciation, volcanism, forms of glacial relief, Würmian, tectonics, orogenic processes.
Machine Building Science
G. Chavleshvili, I. Khatiskatsi, N. Nikvashvili
About Construction of Intersection
Line of Surface Cylinder
Rotation with Cone
Presented by Corr. Member of the Academy A. Prangishvili, May 11, 2006
Abstract. The following problem is solved in the article: cylinder surface of rotation and general type cone with vertex on the axis of the cylinder, the elements of frontal contour of which make straight angle are given. Construct the line of their intersection. Solution of the problem is carried out by means of squared transformations. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: cylinder, squared transformation.
A. Chichinadze, M. Keburia, O. Shautidze
The Distribution of the Wind Power
Over the Territory of Georgia
Presented by Member of the Academy R.Adamia, May 8, 2006
Abstract. Curves of relation between wind speed, duration, maintenance and annual duration of the wind have been constructed. This makes possible to calculate territorial distribution of the wind duration, in order to reveal micro and macro territories. Spectral indices of spreading the noise caused by wind turbines are given. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: wind resources, meteorological station, empirical point, maintenance, curve, noise.
Technology of materials
G. Karumidze, L. Kekelidze
Technology of Materials on the Basis of Isotope as the Method for Creation of the new Generation Materials
Presented by Member of the Academy G. Gvelesiani, July 18, 2006
Abstract. Present work demonstrates strong relationship between the microhardness (Hm) of boron carbide with isotopic composition and general composition of boron. It has been discovered that by increasing the concentration of Boron-11 (c>99.8%), Hm reaches 8000 kg/mm2, which corresponds to Hm of diamond. Increase of density of B-10 isotope and general composition of boron results in decrease of Hm. Model has been developed to explain observed experimental results. Opportunity is created to broaden the application of boron carbide. New technological trend is created to obtain materials with the parameters that are impossible to obtain using classical technologies and that can possess natural isotopic composition. This represents a considerable fact taking into consideration problems of obtaining materials with the resource capacities in extreme conditions, which is essential for developing of high technologies. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: boron carbide, isotope, physical thermal mechanical properties.
Ts. Gviniashvili, R. Gagnidze, Kh. Gagua
Chromosome Analysis of some Rare and
of the Caucasus
Presented by Corr. Member of the Academy G. Nakhutsrishvili, May 16, 2006
ABSTRACT. Caryology of rare and endemic species of the Caucasus has been studied. Our study confirms that diploid species of the Caucasus high mountain flora are autochthonous, however polyploids are the result of the evolution. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: monotypic, polyploid, Pseudovesicaria digitata.
N. Melia, L. Gabedava, L. Zhgenti
Structural Peculiarities of the Generative Sphere of Quercus pontica C. Koch.
Presented by Corr. Member of the Academy G. Nakhutsrishvili, June 6, 2006
ABSTRACT. The development of male and female generative structures of Quercus pontica at the light and the electron microscope levels has been described.
Key words: Quercus pontica, pollen, embryo sac, seed.
M. Bokeria, M. Davlianidze, M. Khutsishvili
A New Locality and Field Observations of Colchicum woronowii (Colchicaceae) from the West Georgia
Presented by Corr. Member of the Academy G. Nakhutsrishvili, June 13, 2006
Abstract. New locality of the Caucasian endemic species – Colchicum woronowii Bokeria is presented. This is a rare, endangered species, that was known only from the Abkhazia (West Georgia) and adjacent areas of Krasnodar district (NW Transcaucasia, RF). The differences with closely relative species C.speciosum Stev. are discussed. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: Colchicum, rare, endangered species, Georgia, Caucasus.
Endemic Medicinal Plants of Imereti (West Georgia)
Presented by Corr. Member of the Academy G. Nakhutsrishvili, July 18, 2006
ABSTRACT. Endemic medicinal plants distributed in Imereti region have been investigated. The 31 species of studied plants are endemics of the Caucasus and 19 ones – endemics of Georgia. Several rare species of endemic medicinal plants are found to be concentrated on the calcareous ecotopes of the river Tskaltsitela gorge, on the territory adjoining to the Gelati monastery.
It has been proposed that since the establishment of Gelati Xenon several rare endemic plants grown near the monastery might have been used for centuries in therapeutic purposes. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: medicinal plants, endemics, rare species, calcareous ecotopes, botanical-geographic province.
GENETICS AND SELECTION
E. Kadagishvili, T. Doborjginidze, A. Shatirishvili, N. Baratashvili, Zh. Chitanava
The Effect of Pesticide b-Cyfluthrin (Buldok) on Growth of Soybean (Glycine max (L.)Merr) Seedlings of Different Genotypes
Presented by Corr. Member of the Academy N. Aleksidze, May 16, 2006
ABSTRACT. The effect of different concentrations (0.02%, 0.04%, 0.06%, 0,08%, 0.1%) of the fungicide b-cyfluthrin has been studied on three genotypes (Y¢¢Y¢¢,Y¢¢y¢¢, y¢¢y¢¢) of L65-1237 genetic line of soybean. The studied seedlings manifested nonuniform resistance to the fungicide. Soybean seedlings of Y¢¢Y¢¢, genotype turned out to be much more resistant than the rest ones. Effect of different concentrations of the fungicide on germination process was nonuniform. The phenomenon of “dose-effect” has not been revealed. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: soybean, pesticide, fungicide, b-cyfluthrin (Buldok).
GENETICS AND SELECTION
N. Machavariani, A. Shatirishvili, Ts. Jorbenadze, A. Kekelidze
Study of Resistance to Copper Ions
in Local Populations
of Wine Yeast
Presented by Corr. Member of the Academy G. Tumanishvili, May 23, 2006
ABSTRACT. Wine yeast populations isolated from wine samples from villages Shilda and Kvemo Kedi have been examined on sensitivity to copper ions. The 250 strains of each population were studied. Both populations turned out to be polymorphic. In both of them copper-resistant and copper-sensitive strains occur with different frequencies. Inheritance of resistance to copper ions was investigated. Two genes SMF1 and SMF2 have been found to control this trait in Shilda population of wine yeast. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: wine yeast, copper ions, resistance.
Human and Animal Physiology
M. Khomeriki, N. Lomashvili, A. Kezeli
Some Peculiarities of Color Naming and Color Visual Searching in Georgian-Speaking Population
Presented by Member of the Academy T. Oniani, June 23, 2006
ABSTRACT. When verbally sequencing colors, Georgian-speaking individuals name approximately forty colors, starting with the basic colors. When viewing a collage composed of familiar colors, four-year-old children initially name the basic colors, in most cases starting with red, without giving preference to any specific strategy. However, school-aged children and adults name colors in a sequence that coincides with eye movement during the color viewing process; specifically, from left to right and from top to bottom. This fact indicates that the color searching strategy of a visual scene is determined by eye movement direction, which is developed as a result of reading and writing abilities and habits. This does not permit an individual to use any other strategy or to give priority to any color. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: color naming, Georgian population, children, adults.
K. Tsakadze, V. Bregadze
Adsorption of H+ Ions on DNA Surface
Presented by Corr. Member of the Academy T. Zaalishvili, July 18, 2006
of hydrogen ions on DNA surface is proved by dependence of pH on the amount of
H+ added to the solution in presence of 10-2M NaCl. This suggestion is supported by
change of ultraviolet absorption spectrum of DNA. Juxtaposing the obtained and
literature data, possible mechanism of DNA double helix destabilization by H+ is suggested.
© 2006 Bull. Georg. Natl. Acad. Sci.
Key words: DNA, hydrogen ions, pH, destabilization.
V. Tabidze, M. Gamkrelidze, V. Gotsiridze, T. Glonti, Member of the Academy T. Beridze
Microsatellite Analysis of Vitis vinifera L. Georgian Cultivars
Presented July, 18, 2006
ABSTRACT. Seven Georgian cultivars: Rkatsiteli, Saperavi, Tavkveri, Goruli Mtsvane, Aleksandrouli, Chkhaveri and Ojaleshi were genotyped at six polymorphic microsatellite loci: VVS2, VVMD5, VVMD7, VVMD27, ssrVrZAG62, and ssrVrZAG 79. Georgian cultivars are characterized with high level of genetic variability, detecting at the same time their individual unique allelic profile, which is typical for the systems with large number of equally frequent alleles. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: microsatellite, simple sequence repeats (SSR), Vitis vinifera, cultivar identification.
E. Kapanadze, E. Davitashvili, R.
Solomonia, N. Nadiradze,
Corr. Member of the Academy N. Aleksidze
Study of the Hypoglycemic Effect of CS-Gal Lectin with the Presence of Monensine and Cytochalasin B
Presented July 25, 2006
Abstract. The hypoglycemic effect of Galactose-specific lectin (CS-Gal) from coriander (Coriandrum sativum, Umbelliferae, Apiaceae, herbal vegetable plant) in human peripheral blood erythrocytes and bovine liver cells has been studied in the conditions of intracellular alkalization (ionophore monensine) and with the presence of the inhibitor of glucose transporter GLUT1 – cytochalasin B. Inhibition of the lectin hypoglycemic effect has been revealed with the presence of monensine and cytochalasin B in erythrocytes but not in the liver cells. It has been supposed that hypoglycemic effect of CS-Gal lectin is not implemented via the phosphatidylinositol signaling system in erythrocytes.
Key words: lectin, erythrocytes, liver cells, monensine, cytochalasin B.
MICROBIOLOGY and Virology
L. Daushvili, L. Kutateladze, I. Dzalamidze
Extremophilic Microscopic Fungi of
Different Type Soils
of Telavi Region
Presented by Member of the Academy G. Kvesitadze, June 27, 2006
ABSTRACT. It have been investigated 40 cultures of microscopic fungi isolated from different type soils of Telavi region. The 2 extremophiles and 10 moderate halophiles were revealed. The extreme limits of temperature have been determined. Extremophilic micromycetes are revealed by several parameters (temperature, pH and NaCl concentration) simultaneously and the ranges of optimal temperature for their cultivation have been determined. It is established that the soil type significantly influences the extremophilic properties of the micromycete. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: extremophiles, microscopic fungi, halophiles, thermophiles.
N. A. Zhukovskaya
Revealation of Age Peculiarities of Apodemus sylvaticus Morphofunctional Status
Presented by Corr. Member of the Academy I. Eliava, July 25, 2006
ABSTRACT. With the purpose of determining generative potential and estimating age of animals, morphometrical analysis of male Apodemus sylvaticus was carried out. The subject of the morphometrical analysis was male Apodemus sylvaticus caught on the territory of Georgia in July 2000. The animals were weighted;the lengths of their bodies, tails, feet and ears were measured. The macromorphometric estimation of animals was completed by morphometric analysis of testes, which included the determination of absolute and relative weight of testes, diameter of seminiferous tubules, index of spermatogenesis as well as volume of Leydig cells’ nuclei. On the basis of implemented measurement it has been established that the animals are underyearlings of 3 reproductive-age categories and are posterity of wintered individuals. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: age, testes, seminiferous epithelium, Leydig cells.
Assessment of Immunoglobulins A, M, G Level in Dacrya Humor
Presented by Member of the Academy T. Oniani, July 18, 2006
Abstract. We aimed to study content in dacrya humor in patients before and after primary operation treatment of an eyeball penetrating wound or traumatic lens extraction and implantation of intraocular lens (IOL). We revealed slight weakening of local immunity in patients on the first day after the eyeball penetrating wound occurrence which is assumed to be as post traumatic stress reaction with quite quick normalization during the first week. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: lens extraction, immunoglobulin, eye trauma.
M. Khvedelidze, I. Meskhishvili, R.Vekua, M. Gvasalia, E.
G. Jiqia, D. Butkhuzi
Ketamine Effects on Heart Rate Variability in Rabbits
Presented by Member of the Academy, K. Nadareishvili, August 12, 2006
Abstract. The purpose of the work was to study the changes of the main time domain (TD) and frequency domain (FD) parameters of heart rate variability (HRV) after ketamine (44 mg/kg) intramuscular injection.
This study showed the various changes in majority of HRV parameters according to the initial neurovegetative status of the experimental animals and these changes appeared to be statistically reliable. Sympathicotonics arouse from narcotic sleep two times faster than vagotonics. These results underline the importance of grouping experimental rabbits by their initial autonomous status at the time of the studies in the field of biology and medicine. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: ketamine, heart rate variability, rabbit.
Music as Means of Humanization of Education
Presented by Corr. Member of the Academy G. Tumanishvili, June 10, 2006
Abstract. Modern trend of thorough music study in comprehensive schools is considered. The unique role, which music can play from the point of view of humanization of education, is stated. It is noted that absolutization of brain left hemisphere orientiated training, one of the main disadvantages of the traditional pedagogics, results in violation of human rights of right hemisphere orientiated pupils, causes their poor academic progress and school neuroses. Some major facts of neurobiology of music, obtained by modern methods of neurovisaualization are pointed. Based on the analysis of these data, it is concluded, that serious, thorough study of music stimulates harmonic interaction of both hemispheres of brain, providing a unique opportunity of development and integration of cognitive and emotional spheres of pupils. Thus, thorough study of music assits to conduct educational process in a way, that takes proper account of integrity of human nature. The importance of this fact from the point of view of humanization of education system is emphasized. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: music education, comprehensive schools, humanization of education, neurobiology of music.
History of Art
On One Scenery by Dimitri Shevardnadze
Presented by Member of the Academy D. Muskhelishvili, May 8, 2006
ABSTRACT. Dimitri Shevardnadze, (1985-1937), a famous artist and outstanding public promoter, was an initiator and organizer of many important enterprises in the sphere of Georgian culture of the first tenths of the 20 century. In 1924 he decorated the stage of the opera of a great Georgian composer Z. Paliashvili “Abesalom and Eteri”. The performance was staged by a well-known contemporary Georgian reformer K. Marjanishvili (1872-1933). The producery and scenery of the performance became an important appearance in the history of modern Georgian culture.
In this work the reconstruction and analysis of scenic feature of decorations, made by Shevardnadze, are realized for the first time. Insufficiently known descriptive materials and some written information are widely impressed and you are given possibility to image artistic and visual peculiarities. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: stenography, Georgian opera, performance.
History of Science
Georgia’s Integrated Economy and Characteristics of its Development
Presented by Corr. Member of the Academy L.Chikava, May 31, 2006
ABSTRACT. The paper discusses preconditions of Georgia’s economic integrity. It identifies the inner driving force of the country’s economic development based on the cultural and lingual unity of the provinces their customs and traditions. It explains the factors that have thwarted successful completion of the long historic process towards transforming the peoples of Georgia into one nation on the basis of unified economic system. The paper also analyzes the key characteristics and goals of the national economic policy worked out after restoration of Georgia’s statehood. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: Georgian economy, natural resources, customs, traditions agriculture, Georgian.
HISTORY OF SCIENCE
T. Efremidze, N. Gegechkori
Gruzintsev Classical Electronic Theory of Metals Dispersion
Presented by Corr. Member of the Academy A. Khelashvili, june 15, 2006
ABSTRACT. The formulae about metal dielectric constant and the formulae by Gruzintsev about the density of electrons participating in conduction are considered in the article.
Classical electronic theory of metal dispersion was founded by A.P. Gruzintsev (1851-1919) in 1911-1912. In 1914 A.P.Gruzintsev published a monograph “Theory of electron motion in the process of dispersion” in which his theory was proved. © 2006 Bull. Georg. Natl. Acad. Sci.
Key words: metals dispersion, refraction data, absorption coefficient, electrical conductivity.