Электронный каталог
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Жанр:Естественные науки (natural_sciences)
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321-330 из 367
периодические издания(Журналы)
GOLUSHKO A. V.
Golushko, A. V. The study of the city of Rundy as a "Heat island" [Text] / A. V. Golushko // Қарағанды университетінің хабаршысы. Биология. Медицина. География сериясы. - 2024. - № 3 (115). - P. 157-165. - Bibliogr.: p. 162-163 ISSN 2518-7201.
УДК:
913
Предметная рубрика
- Regional geography
Аннотация
The purpose of the study is to identify patterns of changes in meteorological indicators in the city of Rundy, Kostanai region over the summer period 2018-2022
Ключевые слова
heat wave, heat index, metrological indicator, coefficient of variation, coefficient of dispersion, trend line, atmospheric humidity, жылу аралы, остров тепла
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ZHANYBEKOVA ZH. T.
Zhanybekova, Zh. T. The effect of growth regulators on the multiplication of Crataegus sanguinea in vitro [Text] / Zh. T. Zhanybekova, A. S. Nurtaza , G. K. Magzumova [et al.] // Қарағанды университетінің хабаршысы. Биология. Медицина. География сериясы. - 2024. - № 4 (116). - P. 135-143. - Bibliogr.: p. 141-142 ISSN 2518-7201.
УДК:
58:57.084.1
Предметная рубрика
- Studying plants in the laboratory
Аннотация
This study presents an efficient protocol for in vitro multiplication of Crataegus sanguinea, achieving the highest shoot proliferation rate
Ключевые слова
QL medium, PGRs, shoot proliferation, crataegus sanguinea, өсімдік гормондары, микроөркендерді көбейту, axillary buds, мультипликация
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
541.64
Предметная рубрика
- Chemistry of macromolecules. Products of polymerization, polycondensation and polyaddition reactions
Аннотация
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
Ключевые слова
liquid crystalline polymers, phase transitions, polarizing microscopy, thermal stability, high-temperature polycondensation
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
544.4
Предметная рубрика
- Chemical kinetics. Catalysis
Аннотация
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
Ключевые слова
biopolymer, Cu-containing enzyme, coumaric acid, polyphenol oxidase, antioxidant, antioxidant, spectroscopy, tyrosinase, molecular modeling
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ОMAROVA G. Т.
Оmarova, G. Т. To the inverse problem of comet dynamics [Text] / G. Т. Оmarova, Zh. Т. Оmarova // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 1. - P. 124-129. - Bibliogr.: p. 128-129 ISSN 2224-5227.
УДК:
521.1
Предметная рубрика
- Celestial mechanics. General principles of dynamic astronomy
Аннотация
In this work, a further consideration of the inverse problem of Celestial Mechanics is developed - the problem of reconstruction of a non-stationary space symmetrical regular planar potential of the gravitating system generating a family of evolving types of orbits
Ключевые слова
celestial mechanics, inverse problem, comet dynamic, аспан механикасы, кометалардың динамикасы, небесная механика, динамика комет
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BITMANOV YE.
Bitmanov, Ye. The content of heavy metals in the soil of central Kazakhstan [Text] / Ye. Bitmanov, A. Abzhalelov , L. Boluspayeva // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 3. - P. 5-14. - Bibliogr.: p. 13-14 ISSN 2224-5227.
УДК:
504.53:631.4
Предметная рубрика
- Soil pollution. Soil research
Аннотация
The article provides comparative data on the content of such heavy metals as chromium, zinc and lead for 2019 and 2020 in several cities of the Akmola region
Ключевые слова
heavy metals, pollutants, ecology, топырақтағы ауыл металдар, топырақтың ластануы, тяжелые металлы, загрязнители почвы, environment
Казахстаника
0/0 Свободно
периодические издания(Журналы)
AYAZBAYEVA A. YE.
Ayazbayeva, A. Ye. Temperature and salt responsivity of anionic, cationic and amphoteric nanogels based on n-isopropylacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt and (3-acrylamidopropyl) trimethylammonium chloride [Text] / A. Ye. Ayazbayeva, A. V. Shakhvorostov , S. E. Kudaibergenov // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 14-24. - Bibliogr.: p. 22-23 ISSN 2518-718Х.
УДК:
541.64
Предметная рубрика
- Chemistry of macromolecules. Products of polymerization, polycondensation and polyaddition reactions
Аннотация
Three different nanogels possessing anionic, cationic and amphoteric character were synthesized via conventional redox initiated free radical copolymerization of N-isopropylacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt and (3-acrylamidopropyl) trimethylammonium chloride
Ключевые слова
polyampholyte nanogels, ionic monomers, cationic nanogel, poly-N-isopropylacrylamide, volume phase transition temperature, amphoteric nanogel
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ZHAPBASBAYEV U.
Zhapbasbayev, U. Transition of a Newtonian fluid to a viscoplastic state [Text] / U. Zhapbasbayev, M. Pakhomov , D. Bossinov // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 3. - P. 92-102. - Bibliogr.: p. 102 ISSN 2224-5227.
УДК:
532.542:665.71
Предметная рубрика
- The movement of liquids in pipelines. Petrochemical products
Аннотация
In the zone of yield stress, oil does not flow, which causes an increase in flow velocity in the central part of the pipeline. Such a complex structure of a non-isothermal waxy oil flow is investigated using the RANS turbulence model
Ключевые слова
waxy oil, Newtonian fluid, viscoplastic state, RANS turbulence model, парафинді мұнай, Ньютон сұйықтығы, парафинистая нефть, ньютоновская жидкость
Казахстаника
0/0 Свободно
периодические издания(Журналы)
CHEKANOVA L. G.
Chekanova, L. G. The Selection of Reagents for Ionic Flotation of Non-Ferrous Metals in the Series of N-Acyl-N'-Mezylhydrazines [Text] / L. G. Chekanova, V. N. Vaulina , Yu. B. Elchischeva [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 171-181. - Bibliogr.: p. 180-181 ISSN 2518-718Х.
УДК:
547
Предметная рубрика
- Organic chemistry
Аннотация
A series of new ligands — N-acyl-N'-mesylhydrazines — of the general formula RC(O)NHNHSO2CH3 has been obtained and considered as reagents for ionic flotation of non-ferrous metals (M(II)
Ключевые слова
ionic flotation, precipitate flotation, sulfonylhydrazines, non-ferrous metals, physico-chemical properties, surface-active substances
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BELKOZHAYEV A. M.
Belkozhayev, A. M. The interaction of miR-4258, miR-3960, miR-211-3p AND miR-3155b with mRNAs genes of non-polyglutamine trinucleotide disorders [Text] / A. M. Belkozhayev, R. Ye. Niyazova // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Биология және медицина сериясы. - 2020. - № 1 (337). - P. 25-32. - Bibliogr.: p. 32 ISSN 2224-5308.
УДК:
577.21
Предметная рубрика
- The molecular biology of the gene. Molecular genetics
Аннотация
Trinucleotide repeat expansion disorders constitute a group of dominantly inherited neurological diseases that are incurable and ultimately fatal. In the present work, miRNA binding sites were predicted by the MirTarget program
Ключевые слова
mRNA, binding site, trinucleotide repeat expansion, тринуклеотидті қайталанатын экспансия, miRNA, тринуклеотидтік бұзылысты гендер, тринуклеотидные повторы
Казахстаника
0/0 Свободно
периодические издания(Журналы)
0/0 Свободно
ZHANYBEKOVA ZH. T.
THE EFFECT OF GROWTH REGULATORS ON THE MULTIPLICATION OF CRATAEGUS SANGUINEA IN VITRO
периодические издания(Журналы)
0/0 Свободно
DEBERDEEV T. R.
THERMAL BEHAVIOR OF NOVEL AROMATIC OLIGOESTERS AND OLIGOESTERAMIDES
периодические издания(Журналы)
0/0 Свободно
WU C. Y.
THREE-DIMENSIONAL FINGERPRINT SPECTROSCOPY STUDY ON THE BIOPOLYMER SYSTEM OF POLYPHENOL OXIDASE BINDING WITH CUMALIC ACID
периодические издания(Журналы)
0/0 Свободно
периодические издания(Журналы)
0/0 Свободно
BITMANOV YE.
THE CONTENT OF HEAVY METALS IN THE SOIL OF CENTRAL KAZAKHSTAN
периодические издания(Журналы)
0/0 Свободно
AYAZBAYEVA A. YE.
TEMPERATURE AND SALT RESPONSIVITY OF ANIONIC, CATIONIC AND AMPHOTERIC NANOGELS BASED ON N-ISOPROPYLACRYLAMIDE, 2-ACRYLAMIDO-2-METHYL-1-PROPANESULFONIC ACID SODIUM SALT AND (3-ACRYLAMIDOPROPYL) TRIMETHYLAMMONIUM CHLORIDE
периодические издания(Журналы)
0/0 Свободно
периодические издания(Журналы)
0/0 Свободно
CHEKANOVA L. G.
THE SELECTION OF REAGENTS FOR IONIC FLOTATION OF NON-FERROUS METALS IN THE SERIES OF N-ACYL-N'-MEZYLHYDRAZINES
периодические издания(Журналы)
0/0 Свободно
BELKOZHAYEV A. M.
THE INTERACTION OF MIR-4258, MIR-3960, MIR-211-3P AND MIR-3155B WITH MRNAS GENES OF NON-POLYGLUTAMINE TRINUCLEOTIDE DISORDERS
периодические издания(Журналы)
0/0 Свободно