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Бюллетень науки и практики @bulletennauki
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Все статьи: 6993
Ecocritical approach to Plakha by Ch. Aitmatov
Статья научная
The present paper is devoted to the ecocritical analysis of Ch. Aitmatov’s novel "The place of the Skull". The topicality of this paper lays on the questions of ecology that are being at stake globally in the 21st century and that has become relevant for Kyrgyzstan as never before. Representation of the environmental issues in literature is crucial, and Aitmatov, whose works often contain themes of relationship between nature and human is perfect to study. In our analysis we distinguish the wolf pair as main characters, setting and human depiction. With the close reading as the method we reveal the author’s concern of growing human ignorance towards the nature and the extinction of unique flora and fauna in Central Asia. The research concludes that Aitmatov warns humanity about the future, where both: human and its surrounding nature suffer losses.
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Ecogeographical problems of air pollution in the big cities of Azerbaijan
Статья научная
In connection with the development of urbanization, the protection of cities and the environment, issues of restoring the ecological balance become an urgent issue. The scale and intensity of product development in Azerbaijan enhance the anthropogenic impact on the nature of the regions. Such an effect is manifested in the pollution of soils with industrial, household waste, chemical fertilizers, the burning of hydrocarbons, the emission of harmful substances in the water and vehicles into the environment. Like in the whole world and in Azerbaijan, such negative processes are no exception. In this regard, the environmental problems of cities and urban agglomerations around the world are in the focus of attention of specialists and scientists. The presented article considers environmental and geographic problems that arose as a result of air emissions in 8 cities of Azerbaijan. The historical properties of studying atmospheric pollution in cities are analyzed, ecogeographic methods for studying atmospheric pollution of cities are identified, environmental pollutants of large cities and the ecogeographic properties of their influence are considered...
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Ecological analysis of some Azerbaijan phanerophytes in ex situ conditions
Статья научная
Analyzes of the relationship of 115 species of phanerophytes used in cultural conditions (Azerbaijan) against some abiotic factors (light, temperature, water, wind, etc.) have been presented in the paper. 2 species of these taxa are hygrophytes, 56 species are mesophytes, 23 species are xerophytes, 9 species are mesoskerophytes and 25 species are xeromesophytes have been determined depending from the relationship with water according to the results of analyzes. 100 light-loving species, 15 shade-loving species, 97 wind-resistant species and 18 wind-resistant species were found as a result of the study.
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Economic analysis of gas supply system for dual fuel engines with life cycle cost
Статья научная
The regulations of the international maritime organization (IMO) on ship emission are becoming increasingly strict. Liquefied natural gas (LNG) is an ideal alternative fuel for vessels, considering its environmental and economic advantages. This paper compares the life cycle cost (LCC) of LNG ships low pressure gas supply system (FGSS). Comparative analysis of the three main pressurization modes for supplying LNG in the low-pressure gas supply system, namely external gas source pressurization, self-pressurization and cryogenic pump boost. Through modeling in Aspen HYSYS software, system operation is simulated, life cycle costs are compared, and the implementation effects of the three system schemes are analyzed and evaluated. The application of life cycle economic analysis in ships mainly focuses on the overall energy saving and emission reduction of ships. Its application in low pressure gas supply systems for dual-fuel engines is rare. This study helps the gas supply system choose the most economical and applicable scheme in practical applications.
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Economic efficiency of use of coal production gaseous and solid waste
Статья научная
The article overviews the problem of utilization of the gaseous and solid waste that emerges in the issue of extraction, preparation and burning of coal from the ecological and economic points of view. Moreover, an assessment of efficiency of utilization of coalmine methane as energy raw material is suggested. What is more, the efficiency of use of solid coal waste as a technological raw material is calculated.
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Статья научная
The whole world looked on as the passage of the Dayton Accords resulted in a ceasefire in Bosnia and Herzegovina (BiH), however, the years to follow oversaw protracted conflict fuelled by ethnic tension, government corruption and attempts to create a peaceful economy. Globalization and the potential to build an economy was a significant incentive to motivate actors to work together in the process of rebuilding a stable infrastructure and opening the economy. Although BiH has progressed economically, certain indicators highlight that all is not as it should be. In this paper, therefore we examine the contributions of institutional quality and financial deepening to economic development in a post-conflict area like BiH. Using an endogenous growth model, the evidence suggests that financial deepening and institutional quality are necessary ingredients for economic performance in BiH.
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Ecosystem approach in education: foreign and Russian practices
Статья научная
The article is devoted to the current research in the field of ecosystem approach in education. It examines the main characteristics of educational ecosystems and gives examples of existing innovation and educational ecosystems abroad and in Russia.
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Education in Nakhchivan: stages of development and future perspectives
Статья научная
The main reason for this is that to reveal the development of educational history in the regions and the factors affecting this development, to opine the results gained in the field of education are important matters for our present and modern pedagogical science. That is, the research problem today is of social and political importance according to its pedagogical significance. On the other hand, this aspect, above all, serves the completeness and enrichment of the history of pedagogical thought in the country and helps to identify opportunities for the use of progressive traditions today. Although the history of education and training in Nakhchivan has its own specific features, the school and pedagogical ideas formed in this area are an integral part of all-Azerbaijani pedagogy. This educational experience is mainly conditioned by the national and cultural characteristics of the indigenous population of the region - the Azerbaijani Turks. The investigation of the development trends of national schools in the region, the formation of the Azerbaijani school and pedagogical ideas, and the study of a very important part of the development stages give a complementary and enriching nature to the research process. The success of the complex and difficult path through the various stages of the multidisciplinary education system is so interesting and multifaceted that each author's view of this process sheds a bright light on new realities, opens the way to suggestions, new ideas and considerations that serve progress. It is of particular importance to study the enlightenment movement in Nakhchivan, to discover its fruitful results, to identify pedagogical conceptions, the state of schools and public education, the factors influencing its development on a progressive basis. Because Nakhchivan is the land of Azerbaijan with long history, rich material and cultural monuments and ancient educational culture. Even in the Neolithic period, local tribes lived here, engaged in various economic and art fields, as well as in primitive training and educational works. The aim of the study. To analyze the features of the development of education in Nakhchivan period of independence, to examine the problems of integration, renewal and modernization of education. The aim is to examine the features of the development of education in Nakhchivan during the independence period, to examine in detail the services provided by our Great Leader Heydar Aliyev in the development of education in Nakhchivan, to determine the necessary conditions for the development of education. Research objectives. A number of complex tasks have been planned to achieve this goal. - To examine the activities of our great leader Heydar Aliyev in the development of education in Nakhchivan during the period of independence and in the implementation of education policy; - Determining the influence of the political, economic, cultural and scientific environment supporting the development of education in Nakhchivan during the independence period; - To analyze the factors determining the development of education in Nakhchivan during the independence period; - To research the implementation of education reforms in Nakhchivan Autonomous Republic depending on the development of education in the country. Research methodology. Guiding documents of classical educators on the development of education, our state's reform programs, orders, wise thoughts. Research methods. Theoretical, historical and comparative analysis is the examination of the sources related to the subject and archive documents, the generalization, grouping and systematization of the written sources related to the research. Research innovation. Our research is being developed for the first time in the Republic of Azerbaijan including Nakhchivan Autonomous Republic. For the first time since independence, the development of education in Nakhchivan is being studied extensively.
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Educational importance of tales in primary schools and teaching methods
Статья научная
The article deals with the formation of a humane worldview, an active life position, moral faith, spiritual culture, the development of oral and written speech by acquainting schoolchildren with the best examples of life-tested folklore treasures.
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Статья научная
In this paper, the heat transfer performance of porous microchannels sintered with spherical and dendritic copper particle is compared. The working fluid is deionized water. For uniform particle size sample, the dendritic-particle microchannel presents better boiling heat transfer performance than the spherical-particle one. It includes higher critical heat flux (CHF), which was related to the connected pore structure of the dendritic copper powder. For mixed particle size sample, the dendritic-particle microchannel also shows higher heat transfer coefficient and CHF. At high heat flux, the dendritic-particle microchannel can effectively suppress the pressure pulsation and maintain a relatively stable flow boiling state in the microchannel.
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Статья научная
The article deals with observations on plants and agrotechnical measures in accordance with the recommendations on the cultivation of plants in short rotation alternating and continuous crops consisting of cereal and inter-row cultivated plants under irrigation conditions. It is known that realizing the potential productivity of wheat in favorable soil and climate conditions is possible by applying high-level agrotechnics in various agro-ecological conditions. The highest indicators of spike elements of the Gobustan variety of wheat, which is the main source of research, were obtained in the crop rotation variant. In Absheron YTT, the spike length is 9.1 cm, the number of spikes is 17.4, the number of seeds is 43, and the mass of the seed is 1.62 g. The mass of 1000 grains are 41.8 g. 9.9 cm according to the mentioned indicators in Tarter BTS; 19.9 units; 50 units; It was determined to be 1.83 g: 40.9 g, which is 0.6-0.9 cm in regions, respectively, compared to continuous cultivation; 2.3-2.8 pieces; 4-3 units; An increase of 0.11-0.16 g and 3.1-3.4 g was obtained. The number of beans per plant in Absheron AEF is 45.6, the number of seeds is 106.3, the mass of seeds is 12.5 g, and the mass of 1000 seeds is 118.4 g. In Tarter RES, one plant has 52.5 beans, 128 grains, the mass of a grain is 13.9 g, and the mass of 1000 g of grain is 110.3 g. These indicators 4.0-4.3 units according to regions compared to continuous cultivation; 9.0-12.3 units; 1.2-1.3 g and 7.4-3.2 g indicate an increase. Thus, the crop rotation in 2 different agroecological conditions after the soybean predecessor had a significant effect on the spike and economic indicators of the winter wheat crop. The highest indicators of spike elements of the winter wheat Gobustan variety were obtained in the crop rotation variant. According to the results of the research, the highest grain yield in the regions was obtained in the mentioned option. Thus, in this variant, the grain yield of winter wheat per hectare was 40.4 cwt in Absheron AEF and 48.4 cwt in Tartar RES.
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Effect of high salt stress on germination and growth of some varieties of common beet
Статья научная
Information is provided on soil salinization as the most common abiotic stress that reduces the productivity and quality of agricultural plants. Salt stress is associated with lipid peroxidation in cell membranes, DNA damage, protein denaturation, carbohydrate oxidation, pigment breakdown and disruption of enzymatic activity, as well as metabolic adaptations, including primarily the accumulation of osmolytes. The growth of higher plants in saline soil depends on the salt tolerance of the plant species. Reduced plant growth due to salinity includes a reduction in plant leaf area. A pot experiment plant materials was carried out based on investigate the effect of salt stress on growth and state stomatal of three sugar beet ( Beta vulgaris ) cultivars, Cooper, Tarifa and Taltos which import from Denmark. Plants were harvested after 30, 45 and 60 days of salt treatment and were separated into leaf lamina, petioles, stem, and roots.
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Статья научная
The cultivation of perennial grasses in mountainous areas protects the slopes from erosion and provides animals with good food. According to the results of the studies, it was determined that the restoration of fertility and the ecological balance of erosional lands and the implementation of soil and agrotechnical measures is of great importance for increasing yields. Thanks to the application of these measures, as a result of the improvement of the water-physical properties of the affected lands, runoff of surface waters is prevented. Perennial grasses accumulate the nitrogen atmosphere of legumes, enrich the soil with organic substances, accelerate the formation of a water-resistant granular-fuel structure and improve its water-physical properties, which in turn contributes to the rapid assimilation of minerals.
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Effect of methyl violet to mulberry silkworm some breeds eggs
Статья научная
To liquidate the larvae, the methyl violet (C24H28N3Cl), used against fungal diseases in fish farming, was used. The goal is to establish physiological responses in different phases of development after treating local and introduced mulberry silkworm breeds of with aqueous solutions of methyl violet. Exogenous exposure to eggs led to the formation of a negative reaction. It has been established that treatment of silkworm eggs with water and a 0.001% solution of methyl violet (from October 20 to November 15, 2018) reduces the weight of the silk layer of cocoons with statistical accuracy by 33.0% (-78.5 mg) and 22.5% (-49 .0 mg) respectively (p
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Effect of plants used for whooping cough and their content of biologically active substances
Статья научная
Azerbaijan is a country with the richest medicinal resources in the world. Favorable climatic conditions, fertile soils, abundant sunlight, and sufficient water reserves create the basis for the growth of various types of valuable medicinal plants here. In the cold months, phytotherapy is used not only for treatment, but also for prevention. Among infectious diseases caused by cold weather, whooping cough prevails over others. There are enough medicinal plants and natural remedies to eliminate the main symptom of the disease, coughing and irritation caused by suffocation. The composition of plants used in whooping cough is rich in saponins, mucus, glycosides, flavonoids, and essential oils. Extracts, infusions, and cooking made from them, taken in a certain dose, increase the body's natural defenses and prevent the disease from becoming chronic. Experts have given rules on how much and in what ratio to take them. The use of fresh air in combination with phytomedicines for whooping cough is even more effective. Since treatment with phytotherapy is effective, it has been used at all times and research is constantly being conducted in this direction.
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Effect of precipitation on the process of erosion in Lankaran natural area
Статья научная
An intensive development of some agricultural areas and positive economic consequences were a reason for deterioration of the ecological state in the last 20-30 years. It should be noted that change of the ecological state, increase of the anthropogenic effect on the environment and global climate changes make necessary to protect the soils and from this point of view there is a great need to study the climatic factors in the formation of the erosion process. According to the comparative analysis it should be noted that an amount of the precipitation decreased 281,4 mm, but the average annual temperature increased 0,8-1,2°C in comparison with the average index of 1977. Though an amount of the rainfall decreases, the erosion process intensity and areal are rising in the region year after year. Its main reason is intensive shower precipitations in the autumn after dry summer, deforestation, the man’s incorrect farming activity. According to the conducted research in the pseudopodzole yellow soils it can be noted that the erosion process deteriorated physical characters of the soils. So, a bulk weight increased 0,12 g/cm3, special weight 0,15 g/cm3, but the porosity decreased 1,65% in the averagely eroded soils in comparison with the non-eroded soils. It is necessary to conduct zonal complex fight measures against erosion in order to achieve an intensive development of agriculture and to restore fertility, and in order to prevent from erosion process, to protect destruction of soil cover. It is necessary to pay attention to soil-climate condition, the factors that lead to the development of erosion, degree of soil erosion, farming direction while these measures are worked out and realized. All the measures against erosion protect the soil cover from leaching, destruction and it must be directed to improve fertility.
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Effect of temperature on some biological indicators of Cydia pomonella linnaeus, 1758
Статья научная
In 2022-2023 The influence of temperature on the development and reproduction of the codling moth butterfly was studied. Experiments have shown that the optimal temperature regime for mass reproduction of the codling moth in laboratory conditions is within 20-25°C. At low temperatures (15°C), butterflies live 34-35 days, and some individuals can live up to 45-50 days. This shows that these characteristics of butterflies allow them to remain viable in an unfavorable environment, although their reproduction is reduced. The experiments carried out make it possible to obtain the necessary temperature parameters for the development of fruit-eating apple trees.
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Статья научная
The development of active and selective catalysts for the synthesis of vinyl acetate from ethylene and acetic acid, the effect of the amount and ratio of individual components of the catalyst to control the catalytic properties of the introduced components were studied. In vinyl acetate synthesis, the effects of each component were studied to describe the effect of catalyst constituents on its properties, and empirical one-factor mathematical dependencies were obtained. Their generalized mathematical relationships of the activities of the catalysts, defined as the rates of the reactions of the formation of vinyl acetate and CO2, have been proposed. As a result of the research, a mathematical model was proposed to select the most optimal composition of the catalyst. The activity of the catalyst containing 0.4%Pd+4%Cu+7%CH3COOK/HSZ averaged 700 g VA/(l×cat×h) at 93-97% selectivity of ethylene - vinyl acetate formation.
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Effect of various preparations for plant rooting on olive cuttings
Статья научная
The effect of different rooting agents on the propagation of olive plant by means of cuttings was investigated in a comparative manner. Experimental research works were carried out in the greenhouse complex of the Absheron Experimental Station. Olive plant cuttings from different varieties were taken as the object of the study. Rooters (IST and naphthenic acids) were used to influence the rapid rooting of cuttings and the increase in the number of lateral roots. During the conducted experiments, different results were obtained in different variants. It was observed that indolyl acetic acid and naphthenic acid were more effective on olive cuttings in comparison with the control option. Based on the conducted studies, it was found that rooting of cuttings was accelerated as a result of the effect of rooters. Results were more successful in the indolyl acetic acid variant than in the other variants. So, under the influence of 100 cuttings IST, 96 cuttings in Agbaba variety, 87 in Jigirina variety, 93 in Pikvales variety, and 89 cuttings in Azerbaijani olive were observed. Under the influence of naphthenic acid, rooting occurred in 92 of 100 cuttings of Agbaba variety, 87 of Jigirina variety, 85 of Pikwales variety, and 91 of Azerbaijani olives. As a result, it was determined that for the rapid development of the olive plant, cuttings should be taken from healthy and well-nourished trees and indolyl acetic acid should be used as a rooting solution.
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Effect on soybean growth of sowing time and fertilizers
Статья научная
Soybean also increases soil fertility by absorbing atmospheric nitrogen through its roots. The purpose in conducting research is to increase the fertility of irrigated gray-brown (chestnut) soils in the Ganja-Kazakh region. It consists of determining the optimal sowing time, sowing scheme, and fertilizer norms that ensure water absorption for ensuring high quality. Field experiments were conducted in 2013-2015 on the basis of the central experimental base of the Azerbaijan Scientific-Research Cotton Institute on irrigated gray-brown (chestnut) soils. Field experiments were carried out in 3 single rows with soybean variety Umanskaya 1, sowing was carried out on April 1-5, April 10-15, and April 20-25. With a total area of 54.0 m2 (30×1.80 m) for each variant, 20, 30, and 60 kg of germinating seeds per hectare were sown in 3 sowing schemes of 45×5 cm, 45×10 cm, and 45×15 cm. Phenological observations were made on 25 plants, and agrotechnical measures were carried out in accordance with the rules adopted for the region. Thus, nutrient content, sowing time, and manure fertilizer norms have a significant effect on soybean height. When the optimal sowing period of soybeans was carried out on April 10-15, in all three sowing schemes, the plant height increased compared to early and late sowing (April 1-5 and 20-25) in all variants. The best results were obtained in the variant of manure 10 t/ha + N60P90K60, the reduced and increased norms of mineral fertilizers did not affect the soybean length much.
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