Vol. 55 No. 3 (256) (2021)

DOI: https://doi.org/10.46991/PYSUB.2021.55.3
Published: 2021-12-23

Chemistry

  • MODIFICATION OF CHITOSAN BY GRAFT COPOLYMERIZATION

    Mejlum L. Yeritsyan, Аrmen M. Аrustamyan, Valentina M. Mavisakalyan, Inessa M. Sirekanyan, Samvel V. Tsarukyan
    199-203
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.199

  • ISOLATION, IDENTIFICATION AND QUANTITATIVE DETERMINATION OF NIFEDIPINE FROM BIOLOGICAL MATERIAL

    Satenik Gh. Petrosyan, Lusine Yu. Sahakyan, Virab G. Kirakosyan, Ella V. Minasyan, Siranush Ye. Sardaryan
    204-211
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.204

Biology

  • STUDY OF PERMEABILITY OF FISH SKIN

    Marine A. Parsadanyan, Marieta S. Mikaelyan
    212-216
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.212

  • EFFECT OF ELECTROMAGNETIC IRRADIATION AND ASPIRIN ON SURFACE TENSION OF HUMAN BLOOD PLASMA $IN~VITRO$

    Anahit V. Nerkararyan, Marieta S. Mikaelyan, Svetlana V. Grigoryan
    217-223
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.217

  • BIOMASS AND BIOHYDROGEN PRODUCTION BY $ESCHERICHIA~COLI$ UPON CONSUMPTION OF MEAT INDUSTRY AND LIGNOCELLULOSIC CORN WASTES MIXTURE

    Syuzanna S. Blbulyan, Satenik N. Mirzoyan, Karen A. Trchounian, Anna A. Poladyan
    224-231
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.224

  • THE ETHANOL INDUSTRY WASTE AS A VALUABLE FEEDSTOCK FOR HYDROGEN PHOTOPRODUCTION BY GREEN ALGAE $CHLORELLA~VULGARIS$

    Jemma G. Manoyan, Lilit S. Gabrielyan
    232-239
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.232

  • THE STUDY OF THE EFFECTIVENESS OF ANTIHYPOXIC PROPERTIES OF CERTAIN COMPOUNDS OF VARIOUS ACTION MECHANISMS ON HEMIC HYPOXIA MODELS

    Narine K. Hayrapetyan
    240-247
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.240

  • THE ROLE OF THIOL GROUPS IN THE EXPRESSION OF THE ACTIVITY OF ARGINASE I AND II ISOENZYMES

    Meri K. Iskandaryan, Ernestina Kh. Barseghyan
    248-254
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.248

  • PECULIARITIES OF GROWTH PARAMETERS OF $SACCHAROMYCES~CEREVISIAE$ UNDER DIFFERENT CONDITIONS

    Anahit H. Shirvanyan, Satenik N. Mirzoyan, Karen A. Trchounian
    255-265
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.255

  • USEFUL AND HARMFUL PROPERTIES OF AGARICOID BASIDIOMYCETES OF THE SHIKAHOGH STATE RESERVE (Republic of Armenia)

    Siranush G. Nanagulyan, Lusine V. Margaryan, Yeva Kh. Hovhannisyan, Iren V. Shahazizyan
    266-275
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.266

  • THE PROBLEM OF ANEMIA IN ARMENIA AMONG YOUNG CHILDREN

    Siranush А. Mkrtchyan, Razmik А. Dunamalyan, Marine A. Mardiyan, Lilit E. Ghukasyan, Gagik M. Mirijanyan
    276-284
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.276

  • SEASONAL AND SPATIAL DISTRIBUTION OF PHYTOPLANKTON IN ARMENIAN LOTIC ECOSYSTEMS: CASE STUDY OF THE DEBED RIVER

    Armine S. Mamyan, Gor A. Gevorgyan
    285-289
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.285

  • INVESTIGATION OF AMINO ACID COMPOSITION OF SOME MOSSES GATHERED FROM ARMENIA

    Gajane H. Semerjyan, Inessa H. Semerjyan
    290-295
    DOI: https://doi.org/10.46991/PYSU:B/2021.55.3.290

Short Communications