- Все статьи 5660
Статьи журнала - Бюллетень науки и практики
Все статьи: 5660
Статья научная
Our research revealed 20 species of Bivalvia, 1 subspecies and 1 variety of the Sangzor River and its surrounding aquatic species belonging to 4 families and 5 genera. Of the species listed in the table: Euglesa hissarica , E. (Casertiana) obliquata , Odhneripisidium polytimeticum are more numerous. They are found in the amount of 1-4 m per 1 m2. The rest of the species are relatively rare. Euglesa (Cyclocalyx) gurvichi , Odhneripisidium terekense , O. (Kuiperipisidium) issykkulense were first discovered in the basin of the Sangzor river. These Bivalves are crenophils and pelolimnophils living in springs depending on their habitat. The length of the Sangzor River and the presence of all biotopes in which mollusks live, made the river a favorable habitat for mollusks. However, it should be noted that while all species occur in the river, they vary in density.
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Distribution of species of the genus Gentiana in Azerbaijan
Статья научная
Species of the Gentiana genus can be found in almost all regions of Azerbaijan. Basically, most species of gentians are distributed in the high mountain belt. During the research conducted in the Herbarium Fund of the Institute of Botany, the new habitats of two species belonging to the Gentiana genus was determined. G. septemfida Pall. is found in the territory of Bilgah village, Absheron district. New habitat for G. asclepiadea L. - is Lesser Caucasus (north), Gadabey area.
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Статья научная
Modern researchers unequivocally state an unfavorable picture of the mass burnout of the personnel of medical institutions. However, the descriptions of research materials do not contain data on the burnout of specialists from medical institutions for pregnant women and newborns. It has been suggested that the value aura of obstetrical activity stimulates the employees to manifest a humanistic mission in the profession, which also protects them from burnout. Empirical hypothesis testing is organized alternatively to traditional. Instead of studying the causes and level of burnout, factors of resistance to it were analyzed from cross-cultural positions. The method of statistical analysis of the critical values (φ* Fisher’s criterion; factor of critical values of selective correlation of Pirson r ) revealed similar and different indicators between the respondents from Kazakhstan and Germany. The indicators of the MBI (Maslach Burnout Inventory), the SOC (Sense of Coherence) of A. Antonovsky etc. were compared. Differences in quantitative indicators served as a starting point for ascertaining the differences and their interpretation. Both groups of medical workers demonstrated favorable results. The respondents of both countries showed a pronounced professional resource of burnout resistance. The reason for this can be called the high social responsibility of physicians for the results of their work in countries focused on increasing demographic indicators. Differences are related to the overall level of burnout resistance (in Germany it is higher) and emotional exhaustion in particular (in Kazakhstan it is more favorable). The cross-cultural nature of the differences is due to the traditionally established resources of burnout resistance. These are professional and organizational resources in Germany (technological ordering, discipline and predictability of labor outcomes) and psychotherapeutic resources in Kazakhstan (emotional and personal support from colleagues and the environment).
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Doing business 2017: equal opportunity for all as a vector of regulation of the business environment
Статья научная
The article analyzes small entrepreneurship as one of the leading sectors of economy, determines rate of economic growth, conditions of employment of population, structure and quality of GDP. Purpose. To study the current state of business climate for entities of small and private entrepreneurship; to analyze the existing range of problems in the sphere of effective state regulation of business activity in the country; to conduct a detailed analysis of structure and dynamics of the World Bank report ranking of Doing Business 2017: equal opportunity for all in conditions of the Republic of Uzbekistan in two years. Methodology. Observational, statistical analysis and purposeful monitoring of the leading ranking organizations of a business climate for small entrepreneurship were used. Various criteria influencing conditions of institutional and entrepreneurial environments were analyzed. Results. Development of small business is responsible to global trends of formation of flexible competitive economy, combination of different forms of ownership and their appropriate economic model in which difficult synthesis of a competitive market mechanism and state regulation of small and large business has been implemented. Therefore, author made attempt to study problems of effective regulation of small entrepreneurship, institutional ensuring business activity in the Republic of Uzbekistan and interaction of business with the government and institutional players of market. Conclusions. Based on detailed studying of the international ranking institutions and inspections of the entrepreneurial environment Doing Business 2017 on the example of Uzbekistan, the author makes proposals on enhancement of entrepreneurship development and improvement of business climate in the country.
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Статья научная
This paper investigates the dynamic pricing and energy management of integrated electric and thermal energy systems through the Stackelberg game approach, for the upper tier leader problem, the revenue of the integrated energy system as a whole is used as the objective function, taking into account the electricity price and related constraints such as the heat price, for the lower follower problem, a leader-follower Stackelberg game model is constructed with the highest user satisfaction as the objective function, Constraints such as power balance conditions and thermal balance conditions of the system are also taken into account, The upper level of the model is solved using a differential evolutionary algorithm, Lower level solver using CPLEX solver. The simulation results show that the proposed model not only effectively weighs the interests of the integrated energy system and the customer aggregator, but also achieves a win-win situation for both the customer aggregator and the external grid, and the solution algorithm used protects the data privacy between the integrated energy system and the customer aggregator.
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Dynamic regression models of forecasting indicators of social and economic security
Статья научная
Dynamic multi-factor regression models make it possible to take into account the dynamics of the proportions of the resulting indicator of socio-economic security and indicators in the retrospective period. The defects of such a model include the complexity of selecting indicators and determining their values in the lead period, the difficulty of forming multivariate static regression models, the development of predictive models of regression coefficients. Without paying attention to the statistical significance of multivariate models used to form a dynamic model, the values of regression coefficients over the years have all the chances to fluctuate significantly in the time series of these coefficients. The alternately decreasing or rising regression coefficients due to the modification of the impact of indicators on the dynamics of the values of the resulting indicator of socio-economic security often does not allow to create a forecast model.
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Dynamics of accumulation of flavonoids in different organs of Sambucus nigra and S. ebulus
Статья научная
The article is devoted to the phytochemical study of flavonoids in various organs of species of the Sambucus L. genus. The results of studying the dynamics of accumulation of the amount of flavonoids in the composition of S. nigra and S. ebulus species depending on the phases of plant development in various organs showed that during the vegetation period the amount of flavonoids undergoes a sharp change. It was established that in the generative organs of the studied species S. nigra and S. ebulus , the maximum amount of flavonoids accumulates in flowers (7.34%, 5.58%, respectively), the minimum amount in green fruits (1.91%, 2.83%). In the vegetative organs, the maximum amount accumulates in the leaves (4.94, 4.91%), and the minimum amount in roots (0.95%, 0.67%) and stems (1.46, 1.32%). The results obtained are of practical importance, since they indicate the possibility of using various plant organs as a source of raw materials for the production of flavonoids.
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Dynamics of population of Primorsky krai
Статья научная
In the real work the demographic situation in separately taken region is considered. In the Concept of population policy of the Russian Federation until 2025 one of solutions of population policy is “involvement of migrants according to requirements of demographic and social and economic development, taking into account need of their social adaptation and integration”. This decision leads only to visible improvements of a demographic situation leading to emergence of various social problems in respect of national identity. Therefore within work extent of influence of various regional factors on population is investigated. Various socio-economic indexes reflecting the standard of living of the population and development of the region act as the key indicators characterizing dynamics of population. On their basis to be under construction the corresponding regression model which factorial signs are number given rise, number of the dead and number of the registered crimes. To be carried out statistical assessment of the importance and degree of adequacy to the constructed model. Ways of increase in population in Primorsky Krai, as a result of carrying out the social policy directed to change of factorial signs are offered. The corresponding positive forecast of dynamics of population is constructed.
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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 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 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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