Vol. 57 No. 2 (261) (2023)

DOI: https://doi.org/10.46991/PYSUB.2023.57.2
Published: 2023-07-07

Chemistry

  • A NEW METHOD FOR THE PREPARATION OF HYDRAZIDES OF SUBSTITUTED GAMMA-HYDROXYBUTANOIC ACIDS

    Tariel V. Ghochikyan, Armen S. Galstyan, Melanya A. Samvelyan
    68-76
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.068

  • HERBAL INFUSIONS AS INHIBITORS OF TRYPSIN ACTIVITY IN WATER AND POLAR ORGANIC SOLVENT–WATER SYSTEMS

    Ameer Khalid Jamal, Ali Qutaiba Mohammed, Abdulrahman Hameed Rasheed, Ahmed Raheem Al-Rubbawi, Gohar A. Shahinyan
    77-89
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.077

  • OLIVINE-BASED SORBENTS FOR REMOVAL OF HEAVY METALS

    Sergey S. Hayrapetyan, Martin S. Hayrapetyan, Hambardzum H. Khachatryan
    90-99
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.090

  • COMPARATIVE STUDY OF THE CONTENT OF ANTHOCYANINS IN THE FRUITS OF BLUEBERRIES, BLACKBERRIES AND BLACKCURRANTS. DEVELOPMENT OF A TECHNOLOGICAL METHOD FOR OBTAINING PARTIALLY PURIFIED NEW-GALENIC EXTRACTS

    Ani S. Dadayan, Artavazd S. Poghosyan, Samvel G. Ghazaryan, Anahit M. Hovhannisyan, Melanya S. Ghazaryan, Slavik A. Dadayan
    100-109
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.100

  • CHIRAL SEPARATION OF $(2S,~9S)$-DIAMINO-2,9-DIBENZYLDECA-4,6-DIYNEDIOIC ACID AND $(2R,~9R)$-DIAMINO-2,9-DIBENZYLDECA-4,6-DIYNEDIOIC ACID

    Avetis H. Tsaturyan
    110-117
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.110

Biology

  • ERYTHROCYTES AS A MODEL FOR STUDYING THE EFFECT OF TEMPERATURE ON THE RESISTENCE OF CELLULAR MEMBRANES

    Marieta S. Mikaelyan, Mariam A. Shahinyan, Marine A. Parsadanyan
    118-125
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.118

  • STUDY OF HYBRIDIZATION OF COMPLEMENTARY SINGLE-STRANDED POLYNUCLEOTIDES POLY(rA) AND POLY(rU)

    Zvart H. Movsisyan
    126-132
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.126

  • CISPLATIN AND PROGESTERONE SEPARATE AND JOINT ACTION ON RAT THYMUS NUCLEAR PHOSPHOLIPIDS COMPOSITION AND CONTENT

    Agapi G. Hovhannisyan, Nune R. Hakobyan, Zhenya V. Yavroyan, Emil S. Gevorgyan
    133-140
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.133

  • EVALUATION OF ETHANOL AND BIOMASS PRODUCTION RATE BY DIFFERENT $SACCHAROMYCES~CEREVISIAE$ STRAINS DEPENDING ON EXTERNAL pH AND TEMPERATURE

    Anahit H. Shirvanyan
    141-153
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.141

  • ROLE OF GLYCINE-BETAINE IN THE GROWTH AND HYDROGENASES ACTIVITY OF $RALSTONIA~EUTROPHA$ H16

    Meri K. Iskandaryan
    154-163
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.154

  • EFFECT OF VARIOUS CARBON SOURCES ON THE GROWTH PROPERTIES AND MORPHOLOGY OF $SPIRULINA~PLATENSIS$

    Ani A. Harutyunyan, Jemma G. Manoyan, Lusine R. Hambaryan, Lilit S. Gabrielyan
    164-171
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.164

  • MICROBIOLOGICAL ASSESSMENT OF FECAL CONTAMINATION IN THE RIVER WATERS OF THE VOGHJI RIVER CATCHMENT BASIN

    Anita L. Varagyan, Gor A. Gevorgyan
    172-176
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.172

Short Communications

  • PREPARATION AND STUDY OF JUNIPER BERRY AND SEED EXTRACTS

    Mikayel S. Torosyan, Vladimir V. Vardapetyan, Gohar A. Shahinyan, Armen I. Martiryan
    177-181
    DOI: https://doi.org/10.46991/PYSU:B/2023.57.2.177