MATHEMATICS

L. Mdzinarishvili, L. Chechelashvili

On a Connection between Partially-Continuous Singular and Alexander-Spanier Cohomologies

Presented by Member of the Academy N. Berikashvili, November 30, 2004

ABSTRACT. The purpose of this work is to establish connection between partially-continuous Alexander-Spanier and partially-continuous singular cohomologies, as well as with ordinary and continuous cohomologies.

Key words: topological space, cohomology, presheaf.

                              MATHEMATICS

D. Chokoraia

On One Mixed Boundary Value Problem for the Non-Shallow Spherical Shells

Presented by Member of the Academy R. Bantsuri, May 17, 2005

    ABSTRACT. In the present paper the non-shallow spherical bodies of shell type are discussed, when the displacement vector is independent from the thickness coordinate x₃. Here we consider the case, when the components of an external force   are equal to constant. Analogous model  of the plane deformation has been obtained for the spherical bodies of shell type. Three-dimensional problem for the spherical segment has been solved.

Key words: non-shallow shell, displacement vector, stress vector.

  MATHEMATICS

T. Aliashvili

On Topological Invariants of Polygonal Random Knots

Presented by Corr. Member of the Academy E. Nadaraya, April   8, 2005

ABSTRACT. We give the asymptotic of the mean writhing number of a standard equilateral random polygon with big number of sides. We also obtain a lower estimate for the mean Coulomb energy of a standard equilateral random polygon.

Key words: equilateral random polygon, average crossing number, writhing number, Coulomb energy, self-linking number.

  MATHEMATICS

Z. Melikidze

On the Multiplicative Complementation of some Incomplete Haar Type Orthonormalized Wavelet Systems to Bases in   L^P_Q,  1 ≤ p <  ∞

Presented by Member of the Academy L. Zhizhiashvili, March 22, 2005

ABSTRACT. In this paper we proved that if any finite collection of functions is removing from the Haar type wavelet system, there exists a bounded function such that after multiplying the remaining set of functions by this function the system obtained will

be a basis in all spaces  L^P_Q,   1 ≤ p <  ∞.

For the Haar type wavelet system certain infinite removing is also possible.

Key words: Haar type wavelet, basis, minimal closed system.

  MATHEMATICS

B. Mamporia, A. Shangua, V. Tarieladze Permutations and Convergence in Probability

Presented by Member of the Academy N. Vakhania, April 25, 2005

ABSTRACT. The following results are announced: If a sequence of random elements tea normed space converges to zero in probability, then there exists a permutation of the given sequence, which is Cesáro convergent almost surely. Every bounded in L, sequence of random variables allows a permutation under which it satisfies the strong law of large numbers. A statement about Banach spaces with the Banach-Saks property is also given.

Key words: normed space, permutation, convergence almost surely, law of large num­bers, Cesáro convergence.

  MATHEMATICS

L. Zambakhidze

On, the Problems of A.V.Arhangelskii and L. ATumarkin

Presented by Member of the Academy N. Berikashvili, June 28, 200S

ABSTRACT. It is proved, that under some natural restrictions any topologically closed subclass of the class of all Tychonoff spaces, where the three classical dimension functions coincide, is a subclass of the class of all metrizable spaces with countable base. This gives complete solution of a problem of A.V.Arhangelskii and partial solution of problem of L.A.Tumarkin.

Key words: A.Arhangelskii, L.Tumarkin, space, Tychonoff, dimension, function, metrizable, countable base, class.

 MATHEMATICS

N. Khatiashvili

On One Boundary Value Problem for the Periodic Analytic Functions

Presented by Corr. Member of the Academy R. Bantsuri, March 19, 2005

ABSTRACT. The boundary value problem for the periodic analytic functions in the periodic domain, when one period of the domain contains two cuts, is considered. The effective solution is obtained by means of the conformal mappings. The solution is given in the parametrical form.

Key words: analytic functions, conformal mappings.

V. Meskhia

 On Convergence of Double Haar Wavelet Series

Presented by Member of the Academy L. Zhizhiashvili, May 24, 2005

          ABSTRACT. Equivalence of almost everywhere absolute and almost everywhere un­conditional convergences of double Haar wavelet series is established.

Key words: Separable wavelet, absolute convergence, unconditional convergence.

 MATHEMATICS

MATHEMATICAL PHYSICS

V. Boltyanski

Mathematical Gravitation Theory

Presented by Corr. Member of the Academy E. Nadaraya, September 19, 2005

         ABSTRACT. Mathematical version of gravitation theory that is based on the "flow­ing space" principle is considered. The principle affirms that the enclosing space of mass M “flows” to M with an acceleration which has gravitational potential. The light velocity is not constant, and that allows to introduce a locational time. Earler the author has proved that the passing from Galilean time to locational one gives Schwarzschild's metric. In the article a theorem which gives the law of changing of the wave length along the light trajectory is established. At the end mathematical model of the world is constructed with the gravitational red shift proportional to the distance. The article may be interesting for scientific discussions.

Key words: Gravitation, length of wave, red shift.

 MECHANICS

L. Makharadze, Corr. Member of the Academy T. Iamanidze

 Classification and Analysis of Pipelines and Pipeline Fittings of  Hydrotransport Pressure Systems

 Presented June 2I, 2005

         ABSTRACT. Classification and analysis of pipelines and pipeline fittings according to the material of their fabrication and sphere of application used during hydrotransportation of solid loose materials through pipelines have been considered.

Key words: pipeline, fittings, hydraulic mixture, compensator.

CYBERNETICS

   Corr. Member of the Academy  R. Khurodze,  I. Kakubava,  D. Gulua

          Priority Queuing System for Replacements and Renewals

resented May 17, 2005

       ABSTRACT. The article considers closed queuing systems with absolute priority of replacement. Replacement time is a random value and is different from zero. Graphic system is constructed for two-dimensional random processes, hence the liner algebraic equation system expressing final state of the system is written directly. Its solution allows to calculate and estimate the efficiency and dependability indices of real systems.

Key words: closed queuing system, stand-by, replacement, renewal.

PHYSICS

D. Kekelidze

 Optic Absorption in Solutions InP_x A  S_1-x  after Low Energy Electron

Flows Irradiation

 Presented by Corr. Member of the Academy A.Khelashvili, January 11, 2005

   ABSTRACT. Optic absorption InP_x A  S_1-x  solid solutions in temperature interval

(300÷80)K after irradiation by low energy electron flows has been investigated. The character of the change of frequency dependence of absorption coefficient and bases of defect forming processes have been established.

Key words: crystals, solid solution, absorption, frequency.

PHYSICS

A. Gerasimov, D. Buachidze, G. Chuchulashvili

Correlation of Thermal Capacity of Simple Solids with Atomic

Bonding Rigidity

 Presented by Member of the Academy J. Lominadze, February 22, 2005

          ABSTRACT. The work presents correlation of thermal capacity with bonding energy of the atoms composing the substance. Simple solids are investigated and it is shown that a substance thermal capacity is in invert correlation with the bonding energy between the atoms.

Key words: ionization potentials of valence electrons, Mendeleev's periodic table, thermal capacity of elements.

PHYSICS

 Z. Gogua, A. Gigineishvili, G. Iluridze, G. Rtveliashvili

 Electron Scattering on Ionized Impurities in Degenerate

Semiconductors of Tetrahedral Symmetry

 Presented by Member of the Academy T. Sanadze, July, 2005

          ABSTRACT. In this work we consider electron scattering on ionized impurities in degenerate semiconductors of tetrahedral symmetry based on the unified impurity model. it is shown, that the obtained theoretical results of electron mobility calculations are much  closer to the experimental data than the values of electron mobility calculated by Brooks-Herring formula.

Key  words: tetrahedral symmetry, scattering, nodal impurities, impurity center.

PHYSICS

M. Pkhakadze

On Semiconductor Melting

                      (To the Memory of Academician Irakli G.Gverdtsiteli)

Presented by Member of the Academy J. Lominadze, July 12, 2005

          ABSTRACT. Concept of critical concentration of antibonding quasiparticies (electrons and holes) in semiconductors is introduced. Expressions of dependence of this concentration on temperature are obtained.

Key words: melting, antibonding particles, critical concentration.

PHYSICS

T. Gegechkori

 Numerical Study of the Amplitude Modulation Decay of NME  Echo

in Magnets with Account of the Influence of Additional

Low-Frequency Fields

 Presented by Member of the Academy T. Sanadze, March 29, 2005

         ABSTRACT. In the frames of Mims transformation matrix method, generalized con­sidering the influence of an additional periodic field, the analytical expressions for nuclear magnetizations are obtained. The spin-echo signal decay envelope modulation effects considering the local oscillations of domain walls and Bloch lines were studied. The numerical results are compared with experimental data.

Key words: echo responses, NMR signal, modulation effects, periodic fields,   domain walls, Bloch lines, acoustic field.

PHYSICS

O. Kharshiladze

Physical and Mathematical Models for Generation of Large-Scale

Internal Vortical Electric Fields in the Ionosphere

 Presented by Member of the Academy J. Lominadze, July 7, 2005

            ABSTRACT. The physical mechanism and corresponding mathematical model of lage-scale internal vortical electric field generation in the ionospheric E-and F-Iayers are suggested. It is established, that in the ionosphere a source of the vortical electric field generation is spatial inhomogeneity of the geomagnetic field.

Key words: planetary electromagnetic waves, inhomogeneous geomagnetic field, dy­namo electric field.

PHYSICS

K. Akhobadze, T. Grigalashvili, E. Ioramashvili, A. Javrishvili,

E. Mailian, M. Nikoladze, L. Shalamberidze

A Method of Identification of  π ^±  and K^± Mesons in π^– A

Interactions at Energy 40 GeV

 Presented by Corr. Member of the Academy A. Khelashvili, February 22, 2005

          ABSTRACT. Method  of  identification of π^± and K^± mesons in π^– A interactions at 40 GeV is developed for film information. The calculations show that the probability of decay K^± mesons is in average 5 times as large as that of π^± mesons at the same energy. The developed criterion absolutely excludes possibility of Σ^± hyperons.

       Key words: method of identification, π^± mesons, K^± mesons.

PHYSICS

 M. Namtalishvili, Member of the Academy T. Sanadze, A. Mikaberidze, P. Magalashvili, M. Gabeskiria, Z. Razmadze

 Study and Choice of Light-Reflecting and Adhesive Materials for Creation of Scintillation Detectors on the Basis of LSO(Ce)              Single Crystals

 Presented June 14, 2005

         ABSTRACT. Comparative characteristics of light output dependence on the type of Material used for the optical contact were investigated. For this purpose the adhesive materials necessary for the creation of detectors on the base of  LSO:Ce single crystals were researched. Sometimes it is convenient to glue scintillator to photocathode by means of special optical glue. Different types of packing were researched. As a result a packing from special teflon tape was recognized to be the best. Different types of reflecting covers and accordingly the light output in specific correlation were studied.

Key words: crystal, scintillator, detector, light output, lutetium.

ASTRONOMY

 G. Malasidze

 On the Orbits in the Gravitational Potential Field of the Plane Model

of Mass Distribution

                                       Presented by Member of the Academy J. Lominadze, March 15, 2005

         ABSRACT. We consider Kuzmin's plane model for the stationary Galaxy with triaxial ellipsoidal distribution of velocities. A new method is proposed for construction of orbits in the gravitational field of this model.

Key words: model, orbit, Galaxy, invariant, ellipsoid, eccentricity, potential, contour.

GEOPHYSICS

R. Chakhaia

 Consideration of the Earth's Orography Influence in Prognostic

Models of Meteorological Values

 Presented by Member of the Academy B. Balavadze, March 29, 2005

        ABSTRACT. Consideration of the influence of the Earth's relief for the mountainous territory is essential when considering prognostic accuracy of meteorological elements. Here we propose different variants of consideration of the influence of the relief. Estimation of the main factors is made and corresponding functions of influences are calculated.

Key words: orography, Earth's relief, influence function, prognostic model.

Study of the Kinetics of Tributylarsenate Formation

Presented by Member of the Academy T.Andronikashvili, April 19, 2005

Abstract. The reaction between orthoarsenic acid and butanol has been investigated at stoichiometric ratio of the reactants. The process was observed using a volumetric method via distillation of the by-product water.

The reaction rates have been determined by graphical differentiation of the kinetic curve. The experimental results were processed using statistical analysis methods. It has been established that the activation energy of the reaction approximately equals to zero. A specific kinetic equation describing the time dependence of the depth of chemical conversion was derived under the given experimental conditions. The adequacy of the equation in relation to the experimental data was tested. © 2005 Bull. Georg. Acad. Sci.

Key words: kinetics, arsenic acid, etherification, tributylarsenate.

Physical Chemistry

T. Chavchanidze, N. Naskidashvili

Study of Adsorption of Blue Methylene of Activated Carbone Obtained from Shells of Walnuts and Small Nuts

Presented by Member of the Academy T. Andronikashvili, April 24, 2005

ABSTRACT. Ecologically pure activated carbone was obtained from walnut and small nut shells. Adsorption of blue methylene from water solutions was studied. It was established that when activated carbone obtained by means of three-hour activation is used, adsorption of this colour occurs most intensively. The obtained product represents the best adsorbent and the prospect of its use is considerable from both economic and ecological point of view. © 2005 Bull. Georg. Acad. Sci.

Key words: activated carbone, adsorption, blue methylene.

Physical Chemistry

V. Gverdtsiteli, M. Gurgenidze, M. Gverdtsiteli

Algebraic Chemical Investigation of Thioethers within the Scope of Quasi-ANB-Matrices Method

Presented by Corr. Member of the Academy Sh. Samsonya, May, 2005

Abstract. The correlation equation ,,structure ~ S⁰₂₉₈" was constructed for thioethers within the scope of quasi-ANB-matrices method. According to Japhe' s criteria correlation is satisfactory. © 2005 Bull. Georg. Acad. Sci.

Key words: thiothers, correlation, quasi-ANB-matrices.

ELECTROCHEMISTRY

E. Kvaratskhelia, R. Kvaratskhelia

Voltammetry of Fumaric and Mesaconic Acids at the Solid Electrodes

Presented by Member of the Academy J. Japaridze, April 14, 2005

ABSTRACT. Voltammetry of fumaric and mesaconic acids at the electrodes from Cu, Pt, Ta, Cd, Cu-Hg and alloys of Cd with Sn, Pb, Cu, In, Hg, Ni, Ag in aqueous solutions has been studied. The main kinetic parameters of the electrohydrogenation of these acids have been determined. The influence of the solution composition, electrode nature and substitute (CH₃ group) has been discussed. © 2005 Bull. Georg. Acad. Sci.

PHYSICAL GEOGRAPHY

Trend of Air Temperature Extreme Anomalies Change during XX Century in Georgia

 Presented by Corr. Member of the Academy Z. Tatashidze, January 21, 2005

        ABSTRACT. On the basis of observational data the tendency of the change of recur­rence of positive and negative mean monthly air temperature is investigated. A trend towards the increase of positive extreme anomalies recurrence in Western Georgia is revealed along with the significant increase of the same index in Eastern Georgia. The opposite course is detected for the negative extreme anomalies.

Key words: mean monthly air temperature, extreme anomalies, recurrence, global warm­ing, trend.   

HYDROLOGY

G. Grigolia, D. Kereselidze, I. Khomeriki

A Complex Approach to Estimation of Risk Factors of Technogenic Systems in  the Conditions of Floods

Presented by Corr. Member of the Academy Z. Tatashidze, April 11, 2005

     ABSTRACT. The basic model for calculation of the risk factors arising in different courses of developing events and with undesirable results, is built for hydrometeorological processes of the streamflow and sedimentation. Such approach ensures application of combinations of various schemes known in the operative hydrology.

Key words: technogenic systems, risk factors, natural hazards.

GEOLOGY

T. Tsutsunava, L. Shubitidze

    New Data  on Low-Temperature Metamorphites of  Murguz Crystalline Projection and Amasia-Sevan-Akera Ophiolite Belt

Presented by Corr. Member of the Academy D. Shengelia, April, 5, 2005

         ABSTARACT. Results of electron microprobe analysis of rock-forming minerals of metamorphic complexes are discussed. Temperature conditions of metamorphism of tec­tonic sheets and blocks are evaluated at a level of subfacies.

Key words: metamorphism, green schist facies, paragenesis.

GEOLOGY

A. Okrostsvaridze, D. Bluashvili, R. Chagelishvili

             New Data About the Hokrila-Achapara Gold Ore-Mineralization

(Svaneti, Georgia)

 Presented by Corr. Member of the Academy D. Shengelia, May 18, 2005

      ABSTRACT. The result of the investigation of the Hokrila area in 2002 is given in the article. It is shown that the average gold concentration corresponds to 2.71 g/t (the average of 20 samples) and the maximum reaches 5.27 g/t in the quartz-gold association of the western block. The average gold concentration (the average of 15 samples) in quartz-pyritic association of this block corresponds to S.76 g/t and maximum reaches 2.88 g/t. In the central block the average gold concentration (the average of 24 samples) corresponds to 6.35 g/t, and maximum is 15.60 g/t in quartz-gold association. In the eastern block the average gold concentration (the average of 15 samples) corresponds to 3.82 g/t and maximum is 7.11 g/t in quartz-gold association. In the same block the average gold concentration (the average of 16 samples) corresponds to 2.65 g/t and maximum is 3.52 g/t in quartz-polysulphydic association.

Key words: Sakeni intrusive, gold ore-manifestation, Hokrila-Achapara, quartz-gold association.

GEOLOGY

Presented by Corr. Member of the Academy D. Shengelia, May 18, 2005

Abstract. The result of the investigation of the Hokrila area in 2002 is given in the article. It is shown that the average gold concentration corresponds to 2.71 g/t ( the average of 20 samples) and the maximum reaches 5.27 g/t in the quartz-gold association of the western block. The average gold concentration (the average of 15 samples) in quartz-pyritic association of this block corresponds to 1.76 g/t and maximum reaches 2.88 g/t. In the central block the average gold concentration (the average of 24 samples) corresponds to 6.35 g/t, and maximum is 15.60 g/t in quartz-gold association. In the eastern block the average gold concentration ( the average of 15 samples) corresponds to 3.82 g/t and maximum is 7.11 g/t in quartz-gold association. In the same block the average gold concentration (the average of 16 samples) corresponds to 2.65 g/t and maximum is 3.52 g/t in quartz-polysulphydic association. © 2005 Bull. Georg. Acad. Sci.

Key words: Sakeni intrusive, gold ore-manifestation, Hokrila-Achapara, quartz-gold association.

Automatic Control and Computer Engineering

R. Kutateladze, N. Chkhaidze

Some Theoretical Aspects of Computation Systems Modeling

Presented by Corr.Member of the Academy R.Khurodze, March 20, 2005

ABSTRACT. Typical conceptual model of computer systems has been described. The possibility of composing corresponding mathematical model in the form of the open or closed systems of mass service has been analyzed.

The Markov's embeded chains method is put into the basis of the mathematical model. Short description of the method is presented. © 2005 Bull. Georg. Acad. Sci.

Key words: queneing system, embeded chains, request flow.

PLANT GROWING

L. Mosiashvili, N. Shengelia

Technological Effect of Hot Callusing in Production of Grafts
of Jujube

Presented by Corr. Member of the Academy T.Urushadze, July 5, 2005

Abstract. New effective technology of production of grafted planting material of jujube is considered, which is known as hot callusing technology. This technology was realized in Georgia, by the support of FAO project and by the guidance of Italian international expert D.Avantsato, for walnut, in 2004-2005 yy.

The technology of hot callusing creates the best conditions in the place of graft union; physiological processes are retarded being expressed in moderate callus-forming. The root system of understock and graft buds are in conditions of low temperature. New roots are not developed on the understock; graft buds are in resting condition.

Sensible thermoregulator, by means of electric cable, automatically regulates constant temperature 27° C in the graft union. Callus-forming of jujube begins on 11-th day and stratification proceeds 3.5 weeks. The amount of grafts with formed callus is 93%; the yield of planting material is 90%. © 2005 Bull. Georg. Acad. Sci.

Key words: jujube, understock, graft, grafting, stratification, callus, hot callusing cable.

Botany

N. Melia, L. Gabedava, L. Zhgenti

Ultrastructural Organization of the Pollen of Stevia rebaudiana

Presented by Corr. Member of the Academy G. Nakhutsrishvili, June 14,2005

generation (stability) is significantly affected by the variety of mutagen and the type of mutation. In this respect the radioactive isotope of phosphorus ³²P and notrosomethylurea labeled by carbon ¹⁴C seems to be the effective mutagenic factors. © 2005 Bull. Georg. Acad. Sci.

Key words: mutation, mutant, somic.

BIOPHYSICS

A. Apakidze

 Interconnection of Abscisic Acid Transpiration and Leaf

Ultrastructure in Vine at Water Deficit Stress

Presented by Corr. Member of the Academy D. Jokhadze, December 21, 2004

         ABSTRACT. At water deficit stress the intensity of vine leaf transpiration is regu­lated by abscisic acid formed in mesophyll cells. Exogenous abscisic acid promotes hydroactive movement of stomatal guard cells, thus decreasing plant total demand in water supply. Water stream in leaf parenchyma cells is transported by means of plas-modesmata - by symplastic pathway, but between the epidermis stomatal guard cells - by apoplastic pathway.

Key words: abscisic, acid, transpiration, stomata, symplast, apoplast.

PLANT  PHYSIOLOGY   

D. Baratashvili

 Genetic Peculiarities of Changes Evoked by Mutagenic Factors in M₁ -Generation of Tea Plants in M₃-Generation

 Presented by Corr. Member of the Academy V. Papunidze, April 19, 2005

               ABSTRACT. Genetic peculiarities of changes evoked by mutagenic factors in M₃ generation of tea plant have been studied in M₃ generation. It is established that the possibility of transmission of genetic changes to M₃ generation (stability) is signifi­cantly affected by the variety of mutagen and the type of mutation. In this respect the radioactive isotope of phosphorus³² P and notrosomethylurea labeled by carbon¹⁴ C seems to be the effective mutagenic factors.

Key words: mutation, mutant, somic.

 GENETICS AND SELECTION

G. Gogoladze, G. Mrevlishvili

Effects of Ni²⁺ and Ce³⁺ Ions on the Thermodynamic Parameters of Dna Melting

Presented by Member of the Academy M. Zaalishvili, February 15, 2005

Abstract. The interaction between DNA and metal ions (Ni²⁺ and Ce³⁺) has been studied. Increase of Ni²⁺ concentration leads to decrease of DNA transition temperature and enthalpy. At [Ce³⁺]/[P]=0.2 DNA transition in two stages takes place at the temperatures 53.4±0.1 ^oC and 91.9±0.1 ^oC. © 2005 Bull. Georg. Acad. Sci.

Keywords: DNA melting, denaturation, DNA hydration.

Biochemistry

M. Balashvili, L. Chokheli, Corr. Member of the Academy D. Jokhadze

Isolation of Dna from Spirulina platensis

Presented by Member of the Academy G. Kvesitadze, April 24, 2005

ABSTRACT. DNA isolation method from blue-green algae Spirulina platensis was developed. The method is based on cell wall destruction by freezing and thawing and subsequent DNA isolation by modified Marmur's procedure. The obtained DNA preparations of Spirulina platensis are high polymerous and contain trace amount of protein, polysaccharides, RNA and pigments. © 2005 Bull. Georg. Acad. Sci.

Key words: Spirulina, DNA, RNA, polysaccharides.

BIOCHEMISTRY

N. Mghebrishvili, T. Bolotashvili, Corr. Member of the Academy N. Aleksidze

Isolation and Identification of Proteins Similar to the

Human Sperm Lectins

Presented March 22, 2005

ABSTRACT. The lectin-like proteins were identified in the human sperm. They are characterized by hemagglutination activity and inhibited by D-GlcNAc, Lac, D-Gal, D-Glc, D-Man. It was studied and purified by affinity chromatography N-acetylglucosamine specific SpL-GlcNAc membrane lectin. © 2005 Bull. Georg. Acad. Sci.

Key words: fertilization, human sperm, lectin-like protein.

MICROBIOLOGY AND VIROLOGY

M. Dvalishvili, M. Darsavelidze, Member of the Academy T. Chanishvili,

T. Suladze, M. Elizbarashvili

Key words: biological tissue, insecticides, chromatography.

ZOOLOGY

Corr. Member of the Academy I. Eliava, N. Bagathuria, N. Chuchulashvili

 Jotonchus kvavadzei sp. nov. (Nematoda, Monohchida) from

Western Georgia

Presented March, 29, 2005

       ABSTRACT. A new species Jotonchus kvavadzei are described. The new species resembles J. nigeriensis Mulvey et Yensen, 1967 but differ by some signs.

Key words: tooth, buccal cavity, monodelphic-prodelphic, supplements.

ZOOLOGY

N. Bakhtadze, G. Bakhtadze, E. Kvavadze

The Results of Study of the Genus Dendrobaena (Oligochaeta: Lumbricidae) Species Chromosome Numbers

 Presented by Corr. Member of the Academy I. Eliava, May 16, 2005

       ABSTRACT. The data on chromosome numbers (somatic, basic) characteristic to Dendrobaena genus species and subspecies spread in Georgia and world lumbrkofauna is summarized.

       It is supposed that 2n=36 somatic and n=18 basic numbers are evolutionary initial chromosome numbers characteristic to Dendrobaena genus, on the bases of which the formation of the basic part of species and subspecies of the genus proceeded in Georgia (and presumably in the whole world).

Key words: chromosome number, somatic, basic.

 ZOOLOGY

EXPERIMENTAL MEDICINE

Corr. Member of the Academy F. Todua, G. Tsivtsivadze, M. Razmadze,

T. Daraselia, S. Kakhadze

The Role of Spiral Computed Tomographic Angiography in Assessment of Thoracic Aortic Aneurysms Caused by Aortic Arch Anomalies

Presented May 17, 2005

ABSTRACT. The anomalies of the aortic arch reflect the complexity of the embryological development of the aortic arch and great vessels. The frequency of this anomaly ranges between 0.4%- 0.6%, of all cardiovascular diseases. The identification of the above mentioned pathology is crucial for the planning of the adequate treatment.

The purpose of our study is to assess the role of Spiral Computed Tomographic Angiography in the detection of the aneurysms of thoracic aorta at the congenital anomalies of the aortic arch. We selected 13 patients with anomalies of aortic arch from the series of 70 cases of thoracic aortic aneurysms. CT angiography with 3D reconstruction is capable to evaluate the shape, type, location, relationship with the adjacent structures and all the other characteristics of the aortic aneurysms. © 2005 Bull. Georg. Acad. Sci.

Key words: congenital anomalies, aortic arch.

Experimental Medicine

N. Khmaladze, J. Mamporia, G. Kavtaradze

Healthy Pupil, Problems and Ways of Monitoring

Presented by Corr. Member of the Academy T. Dekanosidze, May 17, 2005

Abstract. Medicobiological and psychological factors that affect the quality of learning have been studied. A total of 217 practically healthy children aged 7-12 years were enrolled in the present study. It has been found that not separate factors independent of each other affect the academic progress but combination of factors in which fixed set and spatial imaginations play leading role. © 2005 Bull. Georg. Acad. Sci.

Key words: fixed set, spatial imagination.

Palaeobiology

I. Shatilova, L. Rukhadze, N. Mchedlishvili, N. Makharadze

The Genus Liquidambar L. in Neogene of Western Georgia

Presented by Corr. Member of the Academy G. Mchedlidze, March 18, 2005

ABSTRACT. Liquidambar is one of the most characteristic representatives of Neogene flora of Western Georgia. In the deposits of this region there are big remains of plant as well as pollen grains, that give full impression of the systematic composition of the genus. The presence of Liquidambar pollen grains nearly in all layers of Late Cenozoic deposits allows to trace the history of development of genus and distinguish the main stages of its evolution. © 2005 Bull. Georg. Acad. Sci.

Key words: Liquidambar, Neogene, Western Georgia.

Ecology

Mathematics" published in the Soviet Union in late 60-s of the 20-th century in the view of reflection of development of mathematics in Georgia. The fact is pointed out that Professor M. Mikeladze has criticized the 12-th chapter of volume 1 concerning the history of the Caucasian population and local development of mathematics from ancient times to the 17-th century. © 2005 Bull. Georg. Acad. Sci.

Key words: domestic mathematics, Soviet Union, Georgia, manuscripts.

LINGUISTICS

 T. Makharoblidze

 A  Few Questions about Basque Noun Morphology

 Presented by Member of the Academy G. Kvaratskhelia, April 19, 2005

        ABSTRACT. Basque is a strongly agglutinating language. Most of the linguists consider that Basque has no class categories. Basing on the empiric material we have the opposite opinion.

Key words: Basque morphology, class category, case.

HISTORY OF SCIENCE

O. Surmanidze

     Reflection of Development of Mathematics in Georgia in the Four-Volume Issue "History of the Domestic Mathematics"

Presented by Corr. Member of the Academy R. Bantsuri, May 24, 2005

          ABSTRACT. The goal of the present work is to analyze the four-volume issue "His­tory of the Domestic Mathematics" published in the Soviet Union in late 60-s of the 20-th century in the view of reflection of development of mathematics in Georgia. The fact is pointed out that Professor M. Mikeladze has criticized the 12-th chapter of volume 1 concerning the history of the Caucasian population and local development of mathemat­ics from ancient times to the 17-th century.

Key words: domestic mathematics, Soviet Union, Georgia, manuscripts.

Philology

T. Tsitsishvili, I. Modebadze, L. Gverdtsiteli

Kartvelology Sciences Database Editing

Presented by Corr. Member of the Academy G. Kvaratskhelia, June 14, 2005

ABSTRACT. The Database of the Georgian literary studies with easily accessible information bank which will be useful for scientific community interested in Kartvelology has been created.

During electronic editing of existing Georgian scientific information the whole series of unexpected problems were encountered. To solve the problems taking into account specificity of the Georgian Language network of internet, syncretic form of annotation of scientific works and system of lexico-symantic support have been elaborated. © 2005 Bull. Georg. Acad. Sci.

Key words: Database, scientific information, Kartvelology.