Посмотр Серия Химия. География. Экология по названию

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    • Analysis and assessment of surface water quality in the Ilek river basin 

      Safarov, R.Z.; Mendybayeva, G.E.; Mendybaev, E.H. (L.N.Gumilyov Eurasian National University, 2022)
      The article is devoted to the study of hydrochemical indicators of surface waters of the Ilek River and large tributaries. The study was conducted based on the results of expeditionary observations in 2020-2021. Surface water samples were taken at key sites for chemical analysis of constituents. The scientific article describes natural and technogenic factors influencing ...
      2023-08-21

    • Analysis of the state of atmospheric air in the city of Aktobe according to stock materials 

      Mukanov, B.; Berdenov, Zh.G. (L.N.Gumilyov Eurasian National University, 2022)
      The article considers the influence of climatic factors on environmental indicators of the state of atmospheric air. The analysis of atmospheric air pollution in the city of Aktobe is carried out according to departmental organizations and stock materials. The dynamics and structure of pollutant emissions in recent years are presented. The authors carried out a comparative ...
      2023-08-21

    • Arid landscapes of the Central Asian region 

      Akpambetova, K.M.; Rakhmetova, A.; Beisenova, R.; Dzhamgyrchiev, D. (L.N.Gumilyov Eurasian National University, 2020)
      The large absolute heights, the complex geological and orographic structure of Kyrgyzstan and Kazakhstan, their geographical position in the depths of the Eurasian continent, surrounded by vast deserts and the related continental and arid climate, create a great diversity of landscapes, a variety of natural conditions. By the totality of natural factors, taking into account their ...
      2023-08-21

    • Assessment of the ecological stability of the landscapes of the Pavlodar region 

      Ozgeldinova, Zh.О.; Usalinov, E.B.; Zhanguzhina, А.А.; Mukayev, Zh.T.; Dasturbayev, Sh.U. (L.N.Gumilyov Eurasian National University, 2021)
      There are presented main results of the assessment of the ecological stability of the landscapes of the Pavlodar region, performed by GIS. The assessment of the ecological stability of the study region was carried out using a series of indicators: the area of water resources, the area of specially protected natural territories, the average NDVI value, the area of buildings, ...
      2023-08-21

    • Assessment of the migration situation of the North Kazakhstan region 

      Ismagulova, S.M.; Dunets, A.N.; Dmitriyev, P.S.; Eremin, A.A.; Janaleyeva, K.М. (L.N.Gumilyov Eurasian National University, 2020)
      The main trend in the current migration situation of the Republic of Kazakhstan can be considered the expansion of the migration zone outflow, the reduction of the migration zone inflow and the gradual increase in the polarization of the country’s territory according to the effectiveness of migration flows. The goal is to study the factors of migration decline, reduction ...
      2023-08-21

    • Chamaenerion latifolium (L.) Th. Fr. et Lange. амин және май қышқылдарының құрамы 

      Байгазиева, А.Т.; Рахмадиева, С.Б. (ЕНУ им. Л.Н. Гумилева, 2018)
      Бұл мақалада Қазақстанда өсетiн Onagraceae Lindl. тұқымдасына, Chamaenerion Adans. ( синонимi - Epilobium latifolium L. Sp. Pl) тегiне жататын Chamaenerion latifolium (L.) Th. Fr. et Lange.(күреңот үлкен жапырақты) өсiмдiгi жөнiнде таралу аймағы, таралуы, ботаникалық сипаттамасы, халықтық медицинада қолдануы жөнiнде мәлiмет келтiрiлген. Бұл өсiмдiк жаңартылатын өсiмдiк шикiзаты ...
      2023-08-18

    • Crystal structure and biological activity of tetra-tosyl derivative of quercetin 

      Tashenov, Ye.O.; Hecke, K.Van; Suleimen, Ye.М.; Akatan, K. (L.N.Gumilyov Eurasian National University, 2018)
      At present time one of the great interest is represented on the biologic activities of quercetin a polyphenol relating to the class of flavonoids, natural products generally known for their beneficial actions on health. With the aim of obtaining new derivatives of quercetin which would possess a potential of showing valuable biological activity, 5-hydroxy-3,3’,4’,7-tetratosyl ...
      2023-08-18

    • Development of enrichment reagent regime of Py-Cu-Zn ore using collectors’ mixtures 

      Amerkhanova, Sh.K.; Shlyapov, R.M.; Uali, A.S.; Belgibayeva, D.S.; Kaliyev, O.Ye. (L.N.Gumilyov Eurasian National University, 2021)
      The article presents results of flotation enrichment of pyrite-copper-zinc ore in a selective mode. It allows predicting the choice of technology for enrichment of non-ferrous metal ores based on mathematical models describing the influence of hydrodynamic and reagent modes on the flotation parameters of the ore under study. The use of a mixture of flotation reagents excludes ...
      2023-08-21

    • Ecological and economic analysis of the impact of railway transport enterprises on the environment: (on the example of the branch of JSC «NC» Kazakhstan Temir Zholy) 

      Abubekirova, A.Sh.; Massenov, K.B. (L.N.Gumilyov Eurasian National University, 2022)
      The impact of rail transport on the environment is one of the major problems in the Republic of Kazakhstan. It is well known that railway transport causes enormous harm to the environment, destroying natural relief during the construction of railways, pollution of water and air objects also creates physical pollution for people, and the operation of wagons and the transport ...
      2023-08-21

    • Environmental impact assessment of heat and power complexes transferred to the gas system of Nur-Sultan city 

      Tungysh, A.Zh.; Massenov, K.B. (L.N.Gumilyov Eurasian National University, 2022)
      The article is devoted to the environmental assessment of the environmental impact of thermal energy complexes on the territory of the city of Nur-Sultan. The technology of electricity production at thermal power plants leads to large emissions of waste into the environment, which in turn worsens the living conditions of people. It is shown that the implementation of ...
      2023-08-21

    • Evaluation of adsorption properties of carbon material obtained from a pinecone in relation to nitrogen 

      Amerkhanova, Sh.K.; Uali, A.S.; Shlyapov, R.M.; Yerkin, K. (L.N.Gumilyov Eurasian National University, 2022)
      The pinecone, solid waste was successfully converted into activated carbon using chemical agents H3PO4. There were carefully studied properties including porous structures, surface functional groups, and morphology structures. The N2 adsorption studies showed that the nitrogen isotherm exhibits Type IV, and the presence of a hysteresis loop clearly shows the predominantly ...
      2023-08-21

    • Evaluation of the method of territorial redistribution of the flow of the Irtysh river to the Central and Northern regions of Kazakhstan 

      Saspugayeva, G.E.; Zhaken, A.M. (L.N.Gumilyov Eurasian National University, 2020)
      The article provides an overview of the world experience of territorial redistribution of surface water resources, using the experience of the People's Republic of China, the North American continent, and the projects of the Soviet Union. Based on the world experience, it should be noted that large-scale river flow transfer projects are not effective for several reasons, such ...
      2023-08-21

    • Fatty acid compositions of different organs of Alhagi Pseudalhagi (M.Bieb.) Desv. Ex B. Keller & Shap 

      Kokoraeva, A.; Baisalova, G.; Azimbay, M.; Azhikhanova, Zh.; Mendaliyev, G.; Tukhmetova, Zh.; Torsykbayeva, B.; Аtimtaіkyzy, A.; Abdіkalykov, R.; Iztleu, N. (L.N.Gumilyov Eurasian National University, 2022)
      By employing gas chromatography, the fatty acid contents were determined in the root, stem, and leaf of A. pseudalhagi. The composition of fatty acids varied among the organs of A. pseudalhagi. The unsaturation percentages for each part were 47.78%, 48.17%, and 44.12%, respectively. The dominant fatty acid in leaves and stems was palmitic acid. The content of palmitic acid in ...
      2023-08-21

    • Landscape forming factors of the Karkaraly low mountains 

      Keukenov, Ye.; Dzhanaleeva, K.; Baryshnikov, G.; Orazymbetova, K. (L.N.Gumilyov Eurasian National University, 2023)
      The territory of geosystems of the Karkaraly low mountains is mainly forest landscapes and dark-chestnut soil cover. The paper reflects the state of the soil and vegetation cover of the forest landscapes of the Karkaraly low mountains in the Karaganda region. The paper provides the results of chemical soil tests, describes the vegetation cover samples using geoinformation ...
      2023-08-21

    • Landscaping features of the Burabay district of the Akmola region 

      Nurtazina, N. (L.N.Gumilyov Eurasian National University, 2021)
      The scientific work describes the applicability of geoinformation technologies in landscape analysis, including the study of natural components through remote sensing. The focus of the work is shifted to the use of various sources of remote sensing information, the transfer, and processing of the information obtained with their further use in the analysis of landscapes and their ...
      2023-08-21

    • Methods of coating a three-dimensional structure with polymer electrolytes for lithium-ion batteries 

      Beysembaeva, K.A.; Nurymov, Zh.D. (L.N.Gumilyov Eurasian National University, 2021)
      The paper considers various methods of conformal coating the three-dimensional structure of Ni foam with polymers as electrolytes in lithium-ion batteries. Polymethylmethacrylate (PMMA), polyacrylonitrile (PAN), polyvinylidene fluoride (PVDF), and polyethylene oxide (PEO) were chosen as polymer electrolytes because of their good ionic conductivity and mechanical stability. ...
      2023-08-21

    • Pharmaceutical ingredients in the environment: their occurrence and effect to biota 

      Aubakirova, B.N.; Beisenova, R.R.; Zhurmanova, N.Sh.; Osmanova, Zh.Zh.; Nurtileu, A.G. (L.N.Gumilyov Eurasian National University, 2018)
      The following paper highlights concerns about pharmaceutical pollution of the environment. Currently, pharmaceuticals play an important role in human life. People use them in the human and veterinary medicine. These chemicals are designed to treat illnesses of living organisms. However, there is lack of data on the fate and effect of medicines after discharge them to the ...
      2023-08-18

    • Physical and chemical properties of natural clay deposits 

      Kussainova, B.M.; Tazhkenova, G.K.; Kazarinov, I.A. (L.N.Gumilyov Eurasian National University, 2020)
      The problem of creating and using sorption materials is relevant for the practice of modern chemistry, biotechnology, medicine and agriculture. Knowledge of the physical and chemical laws of the processes of carbonation, activation, as well as sorption and desorption is of particular importance in the case of nanostructured carbon sorbent for highly effective treatment of ...
      2023-08-18

    • Prospective sources of natural sesquiterpenoids 

      Yelshibayeva, A.M.; Jalmakhanbetova, R.I. (L.N.Gumilyov Eurasian National University, 2022)
      Sesquiterpene lactones are the main component of many genera of the Asteraceae (Compositae) family. They include active compounds that are used in traditional medicine to treat a variety of ailments. Several sesquiterpene lactones, such as mipsagargin and artemisinin, are already available for sale and used to fight tumor growth, and malaria, respectively. In this article, ...
      2023-08-21

    • Quantum chemical study of structural properties for copper halide complexes with protonated acetamides 

      Omirzak, N.; Yerkasov, R.S. (L.N.Gumilyov Eurasian National University, 2022)
      The chemistry of copper complexes, which contain organic ligands, is one of the important research areas for modern chemical technology and science. Herein, the copper complexes coordinated with organic ligands are playing an important role in many applications including crop production, animal husbandry, and pharmacology. At this point, the coordination of copper halides ...
      2023-08-21