Vol. 55 No. 1 (254) (2021)

DOI: https://doi.org/10.46991/PYSU:B/2021.55.1

Published: 2021-04-28

Chemistry

NEW POSSIBILITIES OF LOW-TEMPERATURE GENERATION OF ACTIVE CENTERS DURING HETEROGENEOUS-HOMOGENEOUS ACTIVATION OF PROPANE ON SILICA GEL SURFACE, MODIFIED WITH ZnO BY THE SOL-GEL AND CHEMICAL TRANSPORT REACTION METHODS

Tatevik O. Kamalyan, Petros S. Gukasyan, Samvel M. Vardapetyan, Oleg A. Kamalyan

1-6
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NITROGEN-CONTAINING CHELATE COMPLEXES AND MONOMERS BASED ON THEM

Valentina M. Mavisakalyan, Mejlum L. Yeritsyan

7-11
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QUANTITATIVE DETERMINATION OF TANNIN IN NETTLE BY SPECTROPHOTOMETRIC AND CHROMATOGRAPHIC METHODS

Svetlana H. Apoyan, Samvel M. Vardapetyan, Anahit M. Hovhannisyan, Gohar F. Mkrtchyan

12-15
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Biology

EFFECT OF VIBRATION STRESS BOTH ON THE SHIFTS OF SOLUBLE PROTEIN FRACTIONS FROM RAT LIVER AND ON THE ARGINASE I ACTIVITY

Ernestina Kh. Barseghyan, Hasmik M. Karapetyan, Armen H. Trchounian

16-24
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ANTIOXIDANT POTENTIAL OF SOME HERBS REPRESENTED IN ARMENIAN FLORA AND CHARACTERIZATION OF PHYTOCHEMICALS

Mikael M. Ginovyan, Naira Zh. Sahakyan, Margarit T. Petrosyan, Armen H. Trchounian

25-38
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DUPLEX–TRIPLEX TRANSITION IN COMPLEXES OF NUCLEIC ACIDS WITH HOECHST 33258

Marine A. Parsadanyan

39-45
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THE ANATOMICAL-MORPHOLOGICAL FEATURES OF OREGANO ORDINARY ($ORIGANUM~VULGARE~\mathrm{L.}$) WIDLY GROWING IN ARMENIAN FLORA DURING THE PRE-BLOSSOMING PERIOD

Armenuhi V. Moghrovyan

46-51
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SPECIES OF AMAUROMYZA HENDEL IN ARTSAKH REPUBLIC

Nonna M. Grigoryan, Varuzhan S. Hovhannisyan

52-57
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PREVALENCE OF CLASS 1 INTEGRONS IN CLINICAL ISOLATES OF NON-TYPHOIDAL $SALMONELLA~ENTERICA$ CIRCULATED IN ARMENIA

Magdalina K. Zakharyan

58-66
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THE ROLE OF PROTON ATPase SPECIFIC INHIBITOR $N,N'$-DICYCLOHEXYLCARBODIIMIDE AND EXTERNAL FORMATE CONCENTRATION ON $E.~COLI$ GROWTH DURING MIXED CARBON SOURCES FERMENTATION AT DIFFERENT pHs

Heghine Kh. Gevorgyan, Anait V. Vassilian, Karen A. Trchounian

67-74
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SOCIO-DEMOGRAPHIC AND MEDICO-BIOLOGICAL FACTORS AS PROGNOSTIC INDICATORS OF QUALITY OF LIFE IN EARLY CHILDHOOD

Siranush А. Mkrtchyan, Razmik А. Dunamalyan, Lilit E. Ghukasyan, Marine А. Mardiyan

75-84
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MORPHOFUNCTIONAL CHANGES IN RAT LUNGS UNDER THE INFLUENCE OF AFLATOXIN B1

Anna F. Karapetyan, Anna V. Grigoryan, Gevorg A. Avagyan

85-90
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QUALITY OF LIFE AND DEVELOPMENTAL CHANGES OF PRETERM INFANTS AT EARLY CHILDHOOD

Siranush А. Mkrtchyan, Razmik А. Dunamalyan, Lilit E. Ghukasyan, Marine A. Mardiyan, Karen K. Grigoryan

91-102
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