Proceedings of Yerevan State University 2002 #3(199)
Proceedings of Yerevan State University 2002 #3(199) About
Published since 1925. Currently the peer-reviewed works on natural sciences, mathematics and informatics are published here in Armenian, Russian and English languages.
"Proceedings of the YSU" is published three times a year. The journal presents original articles containing new results of theoretical, experimental and applied research, carried out in YSU or other Armenian and foreign scientific centers.
The first Editor in Chief in 1967-1972 was academician of Armenian AS Hovhannes H. Chaltikyan
Scince 2009 the Journal is publishing in three series

Physical and Mathematical Series
Editor in Chief Professor Varujan S. Atabekyan
Chemical and Biological Series,
Editor in Chief Professor Rouben M. Harutyunyan
Geografical and Geologicall Series
Editor in Chief Professor Hoghmik H. Sargsyan
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    Proceedings of Yerevan State University


    Editorial Board
    Aroutiounian R. M. (editor), Petrosyan S. G. (deputy editor),
    Sharambeyan L. T. (executive secretary),
    Boynagryan V. R., Chubaryan E. V., Danielyan E. A., Khachatryan I. G., Khachatryan H. G., Margaryan Sh. A., Martirosyan R. M., Osipyan L. L., Sargsyan H. H., Sargsyan S. V., Shoukouryan S. K.

    Table of Contents

    A. G. Baghdasaryan

    On zero spaces of Nikoski-Besov type | Proceedings of YSU, Natural Sciences, 2002, #3, p. 3-6 (in russian) |

    L. G. Tonoyan

    On an extremal problem | Proceedings of YSU, Natural Sciences, 2002, #3, p. 7-11 (in russian) |

    L. M. Budaghian

    Elementary classification of quasi-Boolean algebras | Proceedings of YSU, Natural Sciences, 2002, #3, p. 12-19 (in russian) |

    A. A. Chubaryan, H. R. Bolibekyan

    On the minimal sequential caculi of Robinson's arithmetic | Proceedings of YSU, Natural Sciences, 2002, #3, p. 20-22(in russian) |

    M. M. Aghasyan

    The denotional semantics of procedural programs (solution to the problem of minimizing the number of variables) | Proceedings of YSU, Natural Sciences, 2002, #3, p. 23-30 |

    S. G. Shahinyan

    On the stability of acting force of linear systems of differential equations with changeable cofficients | Proceedings of YSU, Natural Sciences, 2002, #3, p. 31-34 (in russian) |

    A. G. Galumian, H. M. Arakelyan

    Mathematical comparision of two well known patterns of material equations for gyrotropic media | Proceedings of YSU, Natural Sciences, 2002, #3, p. էջ 35-40 (in russian) |

    Shushanik R. Melikyan

    Radial oscillations of homogeneous stellar objects and the critical value of adiabatic exponent | Proceedings of YSU, Natural Sciences, 2002, #3, p. 41-44 (in russian) |

    G. S. Simonian

    Quantitative characterization of the reactionary medium by means of semiempirical correlation equations | Proceedings of YSU, Natural Sciences, 2002, #3, p. 45-53 (in russian) |

    H. H. Ghazoyan

    Kinetic peculiarities of anionic polymerization of acrylonitrile sulfoxides solutions | Proceedings of YSU, Natural Sciences, 2002, #3, p. 54-60 (in russian) |

    N. O. Geokchiyan, A. A. Yeghiazaryan, J. A. Mikaelyan, H. G. Khachatryan

    Extraction absorbtiometric determination of ampicyline by oxasine basic dye Nile blue "B" | Proceedings of YSU, Natural Sciences, 2002, #3, p. 61-64 (in russian) |

    Zh. Kh. Grigoryan, R. T. Mkrtchyan, K.A. Ter-Arakelyan, H. G. Babayan, J. R. Andreasyan, S.K. Grigoryan

    Physico-chemical investigation of system from alkaline metals flouroyttrates and flouroaluminates. Melting diagram of system Rb3AlF6-K3YF6 | Proceedings of YSU, Natural Sciences, 2002, #3, p. 65-68 (in russian) |

    E. G. Mesropyan, G. B. Hambardzumian, A. A. Avetisyan, M. G. Sargsyan

    Synthesis of new derivatives of paraaminobenzesulfacetamide | Proceedings of YSU, Natural Sciences, 2002, #3, p. 69-71 (in russian) |

    V. P. Kalantaryan

    Effects of extremely high-frequency mycrowaves on bioobjects | Proceedings of YSU, Natural Sciences, 2002, #3, p. 72-84 |

    M. G. Gevorgyan, M. A. Davtyan

    The investigation of influence of pH and urea on the fluorescence of arginase solution | Proceedings of YSU, Natural Sciences, 2002, #3, p. 85-90 (in russian) |

    E. V. Goginian, J. H. Vardanyan, M. A. Davtyan

    Some kinetic properties of branched chain amino acids transaminase of chicken liver | Proceedings of YSU, Natural Sciences, 2002, #3, p. 92-95 (in russian) |

    M. B. Matevosyan, V. S. Poghosyan, E.A. Aghadjanyan, A. L. Atoyants, R. M. Aroutiounian

    Application of tradescantia 02 clone for monitoring of the genotoxicity of Hrazdan river water on territory of Yerevan city. | Proceedings of YSU, Natural Sciences, 2002, #3, p. 96-99 (in russian) |

    S. V. Amirian

    Investigation of influence of Vipera reddei venom on rlrctrical activity of single inter neurons of the rat's spinal cord in conditions of chronical intoxication and cool-hardening | Proceedings of YSU, Natural Sciences, 2002, #3, p. 100-107 (in russian) |

    A. M. Hovhanisyan, K. A. Jivanian

    Data on the comparative morphometic study of reactive changes in the spleen of rats and hens during liver regeneration. | Proceedings of YSU, Natural Sciences, 2002, #3, p. 108-112 (in russian) |

    G. A. Parsadanian

    Phosphatase activity of forest chesnut and carbonate soils, noninfected and infected by Bacillus thuringiensis Berliner | Proceedings of YSU, Natural Sciences, 2002, #3, p. 113-117 (in russian) |

    Zh. A. Achoyan, T. G. Mkrtchyan

    The impact of drainage network condition on the mineralization of water | Proceedings of YSU, Natural Sciences, 2002, #3, p. 118-123 (in russian) |

    H. H. Sargsyan, R. H. Sargsyan

    The basic principals of Armenian geological dictionary | Proceedings of YSU, Natural Sciences, 2002, #3, p. 123-129 |

    Arsen T. Grigoryan

    The dependence of the mean annual temperature of the rivers of RA upon mean temperature in july | Proceedings of YSU, Natural Sciences, 2002, #3, p. 130-134 |

    S. M. Hakopian, G. P. Piroumian

    Investigation of reaction ability of alpհa-halogenocarbonic acids with ansaturated alcohols | Proceedings of YSU, Natural Sciences, 2002, #3, p. 135-137 (in russian) |

    L. H. Navasardyan

    Protein biosynthesis in yeasts Candida rugosa ВСБ-925 under high temperature | Proceedings of YSU, Natural Sciences, 2002, #3, p. 135-137 (in russian) |

    N. V. Adamian

    On the role of mast cells at recovery reaction of liver | Proceedings of YSU, Natural Sciences, 2002, #3, p. 141-142 (in russian) |
    New Books. A.M.Trofimov, Ye.I. Igonin (Kazan State University edition, 2001) The conceptual fundamentals of modeling in geography (in russian) | Proceedings of YSU, Natural Sciences, 2002, #3, p. 143 (in russian) |
    Hovhannes H. Chaltikian (100th anniversary) | Proceedings of YSU, Natural Sciences, 2002, #3, p. 144-146 |
    Hovhannes G. Baklavajian (on the occasion of the 80th anniversary) | Proceedings of YSU, Natural Sciences, 2002, #3, p. 147-149 |
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