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Genre:Естественные науки (natural_sciences)
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281-290 of 317
periodical press (Magazines)
TURSYNBAY A.
Tursynbay, A. To a phytochemical study of Kazakhstani species Fritillaria karelinii (Fisch. ex D. Don) Baker [Text] / A. Tursynbay, Zh. Zh. Karzhaubekova , N. G. Gemejiyeva // Қарағанды университетінің хабаршысы. Биология. Медицина. География сериясы. - 2023. - № 2 (110). - P. 145-150. - Bibliogr.: p. 148-149 ISSN 2518-7201.
UDC:
581.192
Subject headings
- Chemical composition of plants
Annotation
Present article provides the results of a primary phytochemical analysis of Fritillaria karelinii (Fisch. exD. Don) Baker (syn. Rhinopetalum karelinii Fisch. ex D. Don) from family Liliaceae Juss., collected from different fields of populations in the Almaty region
Keywords
Fritillaria karelinii bulbs, phytochemical analysis, amino acids, fat acids, quantitative content
Kazakhstan
0/0 Free
periodical press (Magazines)
ERMEK N. E.
Ermek, N. E. Transformation of the Amudarya river basin in the context of climate change [Text] / N. E. Ermek, A. S. Zhakupova // География және су ресурстары. - 2023. - № 4. - 14-20 р.
. - Bibliogr.: 19-20 р.
ISSN 2957-9856.
UDC:
556.047
Subject headings
- Hydrological analysis
Annotation
The article examines the impact of climate change on the water resources of the Amudarya river basin
Keywords
Amudarya river, climate change, river flow, ecology in the Amudarya basin, glaciers, environmental issues, water resources, water use
Kazakhstan
0/0 Free
periodical press (Magazines)
The Ecolomist [Текст] : экологический журнал / Дауржан Аугамбай. – Астана : The Ecolomist, 2021. - – Выходит четыре раза в год.
Annotation
Публикует материалы об экологических реформах и мерах, предпринимаемых для улучшения состояния окружающей среды; формировании экологической культуры в обществе; принятии эффективного решения экологических проблем.
Kazakhstan
Numbers
1/1 Free
periodical press (Magazines)
ТЫНЫБЕКОВ Б. М.
Тыныбеков, Б. М. Taraxacum officinale wigg. - онтогенезіндегі вегетативтік мүшелерінің морфологиялық құрылыс ерекшеліктері [Мәтін] / Б. М. Тыныбеков, Н. М. Мухитдинов , Ә. Б. Бегенов [ж. б.] // ҚазҰУ хабаршысы. Биология сериясы. - 2006. - № 2 (28). - 13-16 б. - Библиогр.: 16 б. ISSN 1563-0218.
UDC:
635.491
Subject headings
- Бақбақ өсімдігі. Taraxacum officinale Wigg.
Annotation
Мақалада дәрілік өсімдік Taraxacum officinale wigg. онто-морфогенезін қамтитын оның тұқымының құрылысы, зертханадағы, екпе жағдайдағы өну қабілеті мен көктеу кезеңіне фенологиялық бақылау, вегетативтік мүшелерінің морфологиялық ерекшеліктері зерттелген
Keywords
дәрілік өсімдіктер, күрделігүлділер тұқымдасы, вегетативтік мүшелер, морфологиялық құрылысы, Taraxacum officinale wigg. өсімдігі, бақбақ өсімдігі
Kazakhstan
0/0 Free
periodical press (Magazines)
VDOVINA T. A.
Vdovina, T. A. To the methodology for the study of intraspecific variability and selection of wild forms of Viburnum opulus L. [Text] / T. A. Vdovina, O. A. Lagus // Қарағанды университетінің хабаршысы. Биология. Медицина. География сериясы. - 2023. - № 4 (112). - P. 126-133. - Bibliogr.: p. 131 ISSN 2518-7201.
UDC:
581:634.745
Subject headings
- Botany. Viburnum opulus L.
Annotation
The methodological recommendation for the study of intraspecific variability and the selection of wildgrowing promising for breeding forms of common Viburnumis written on the basis of a large amount of factual material obtained from the study of this species in the East Kazakhstan region
Keywords
distribution, quantitative characteristics, degree of flowering , fruits, variability
Kazakhstan
0/0 Free
periodical press (Magazines)
SHLYAPOV R. M.
Shlyapov, R. M. Thermodynamics of chalcocite dissolving in solutions of flotation reagents [Text] / R. M. Shlyapov, Sh. K. Amerkhanova , А. S. Uali [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 1. - Р. 122-130. - Bibliogr.: p. 128-129 ISSN 2518-718Х.
UDC:
543.42
Subject headings
- Spectral analysis
Annotation
This work describes the formation of the ionic composition of the sorption layer during the concentration ofcopper-lead and pyrite-copper-zinc ore
Keywords
flotation, hydrophobicity, sorption layer of collector, flotation reagents, sulfide minerals
Kazakhstan
0/0 Free
periodical press (Magazines)
MEDVEDEVA N. A.
Medvedeva, N. A. The Effect of Aging on the Microstructure of Alloys (ТiСr1.8)100–xVx after Electrolytic Hydrogen Charging [Text] / N. A. Medvedeva, A. A. Mironova , N. E. Skryabina [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 2. - Р. 95-102. - Bibliogr.: p. 99 ISSN 2518-718Х.
UDC:
544.2
Subject headings
- Physical chemistry of solids, liquids and gases
Annotation
The microstructure transformation of ternary Ti-Cr-V alloys after introduction of hydrogen has been analyzed for a long time. Assessment of the impact of vanadium concentration and ratio of Ti and V concentrations on composition stability has been carried out
Keywords
alloys, electrochemical hydrogen saturation, hydrogen, self-diffusion, microstructure of alloys
Kazakhstan
0/0 Free
periodical press (Magazines)
RYABYKH A. V.
Ryabykh, A. V. The Role of Zinc Ion in the Active Site of Copper-Zinc Superoxide Dismutase [Text] / A. V. Ryabykh, O. A. Maslova , S. A. Beznosyuk [et al.] // Bulletin of the Karaganda University. Chemistry Series. - 2022. - № 2. - Р. 77-87. - Bibliogr.: p. 85 ISSN 2518-718Х.
UDC:
544.18
Subject headings
- Quantum chemistry
Annotation
The interaction of the superoxide radical ion O2– with the active center of Cu, Zn superoxide dismutase was studied obtained by computer simulation
Keywords
Zn-superoxide dismutase, superoxide radical ion, reactive oxygen species, antioxidants
Kazakhstan
0/0 Free
periodical press (Magazines)
DEBERDEEV T. R.
Deberdeev, T. R. Thermal Behavior of Novel Aromatic Oligoesters and Oligoesteramides [Text] / T. R. Deberdeev, A. I. Akhmetshina , L. K. Karimova [et al.] // Bulletin of the Karaganda University. Chemistry series. - 2022. - № 3. - Р. 180-188. - Bibliogr.: p. 188 ISSN 2518-718Х.
UDC:
541.64
Subject headings
- Chemistry of macromolecules. Products of polymerization, polycondensation and polyaddition reactions
Annotation
Series of aromatic oligoesters and oligoesteramides were synthesized via high-temperature polycondensation of aromatic dicarboxylic acids with 4-hydroxybenzoic acid (or 4-aminobenzoic acid) and 1,5-naphthalene diol
Keywords
liquid crystalline polymers, phase transitions, polarizing microscopy, thermal stability, high-temperature polycondensation
Kazakhstan
0/0 Free
periodical press (Magazines)
WU C. Y.
Wu, C. Y. Three-Dimensional Fingerprint Spectroscopy Study on the Biopolymer System of Polyphenol Oxidase Binding with Cumalic Acid [Text] / C. Y. Wu, W. О. Ling , Y. C. Yao [et al.] // Bulletin of the Karaganda University. Chemistry series. - 2022. - № 3. - Р. 168-179. - Bibliogr.: p. 176-177 ISSN 2518-718Х.
UDC:
544.4
Subject headings
- Chemical kinetics. Catalysis
Annotation
This study examines the interaction of coumaric acid with polyphenol oxidase, an enzyme that plays a key role in the aging and darkening of plant cells
Keywords
biopolymer, Cu-containing enzyme, coumaric acid, polyphenol oxidase, antioxidant, antioxidant, spectroscopy, tyrosinase, molecular modeling
Kazakhstan
0/0 Free
TURSYNBAY A.
TO A PHYTOCHEMICAL STUDY OF KAZAKHSTANI SPECIES FRITILLARIA KARELINII (FISCH. EX D. DON) BAKER
periodical press (Magazines)
0/0 Free
ERMEK N. E.
TRANSFORMATION OF THE AMUDARYA RIVER BASIN IN THE CONTEXT OF CLIMATE CHANGE
periodical press (Magazines)
0/0 Free
THE ECOLOMIST (2021)
periodical press (Magazines)
1/1 Free
ТЫНЫБЕКОВ Б. М.
TARAXACUM OFFICINALE WIGG. - ОНТОГЕНЕЗІНДЕГІ ВЕГЕТАТИВТІК МҮШЕЛЕРІНІҢ МОРФОЛОГИЯЛЫҚ ҚҰРЫЛЫС ЕРЕКШЕЛІКТЕРІ
periodical press (Magazines)
0/0 Free
VDOVINA T. A.
TO THE METHODOLOGY FOR THE STUDY OF INTRASPECIFIC VARIABILITY AND SELECTION OF WILD FORMS OF VIBURNUM OPULUS L.
periodical press (Magazines)
0/0 Free
SHLYAPOV R. M.
THERMODYNAMICS OF CHALCOCITE DISSOLVING IN SOLUTIONS OF FLOTATION REAGENTS
periodical press (Magazines)
0/0 Free
MEDVEDEVA N. A.
THE EFFECT OF AGING ON THE MICROSTRUCTURE OF ALLOYS (ТIСR1.8)100–XVX AFTER ELECTROLYTIC HYDROGEN CHARGING
periodical press (Magazines)
0/0 Free
RYABYKH A. V.
THE ROLE OF ZINC ION IN THE ACTIVE SITE OF COPPER-ZINC SUPEROXIDE DISMUTASE
periodical press (Magazines)
0/0 Free
DEBERDEEV T. R.
THERMAL BEHAVIOR OF NOVEL AROMATIC OLIGOESTERS AND OLIGOESTERAMIDES
periodical press (Magazines)
0/0 Free
WU C. Y.
THREE-DIMENSIONAL FINGERPRINT SPECTROSCOPY STUDY ON THE BIOPOLYMER SYSTEM OF POLYPHENOL OXIDASE BINDING WITH CUMALIC ACID
periodical press (Magazines)
0/0 Free