- Все статьи 6181
Статьи журнала - Бюллетень науки и практики
Все статьи: 6181
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.
Бесплатно
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.
Бесплатно
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.
Бесплатно
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.
Бесплатно
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.
Бесплатно
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.
Бесплатно
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.
Бесплатно
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
Бесплатно
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.
Бесплатно
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.
Бесплатно
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.
Бесплатно
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.
Бесплатно
Effective methods improving the load-bearing ability of clay bricks and walls
Статья научная
An analysis of major earthquakes over the last 60 years reveals the preponderance of structural damage, building collapse, and fatalities to have occurred in individual buildings of the residential sector. This highlights a serious problem in the rural districts of Central Asia, where more than 65 percent of residential construction uses clay-based materials. For these reasons we are currently developing new ways, based on the old time-honored techniques, to improve the strength and durability of clay as a building material so that locally constructed houses are better able to withstand seismic effects. In this paper presents the third methods of improving traditional building technologies and clay’s ability to withstand seismic forces. These methods are short fibers, thermoprocessing and of compacted soil cement block and brick which based to inexpensive materials.
Бесплатно
Effectiveness of applying fertilizers under watermelon on the meadow-grey soils in Mugan-Salyan zone
Статья научная
The meadow-gray soils are one of the most widespread species in Azerbaijan territory, mainly in the Kur-Araz lowland, in Nakhchivan plain regions, in the Samur-Davachi valley. The meadow-gray soils irrigated in the Mugan-Salyan zone are most commonly used in the agricultural lands of the region. Agrochemical characterization of soils plays an important role in defining a number of its features, including fertility, degree of provision of certain nutrients, determination of soil condition reaction, timing, norms, methods and proportions of fertilizers under separate plantings. In this context, the soil under watermelons has been researched, and the agrochemical properties of meadow-gray soils have been studied. Apart from the nutritional properties of plants, it has a great impact on the efficient use of fertilizers in the soil. Soil is the main source of plant nutrients. Different soils contain different amounts of nutrients. The soil contains more nutrients than it needs to produce high yields. Fertilized soil with less moisture increases the yield of agricultural crops. This is explained by the fact that only some of the nutrients in the soil are used by plants. Many of them remain unused. The nutrients contained in the soil go into the form used by plants from time to time as a result of the biological and chemical processes involved. In this regard, it is necessary to determine the amount of nitrogen, phosphorus, potassium and other elements found in the soil and which plants can easily use to ensure proper nutrition. The main reason why plants do not meet their nutrients is the use of fertilizers. Given the biology of watermelon, soil-climatic conditions and agrotechnical methods in Azerbaijan, the optimal dose and timing of fertilizers can be enhanced and improved.
Бесплатно
Effects of NaCl salt stress on biometric parameters in Pisum varieties
Статья научная
Salinity is a major threat to modern agriculture causing inhibition and impairment of crop growth and development. Here, we not only review recent advances in salinity stress research in plants but also revisit some basic perennial questions that still remain unanswered. In this review, we analyze the physiological, biochemical, and molecular aspects of Na+ and Cl- uptake, sequestration, and transport associated with salinity. We discuss the role and importance of symplastic versus apoplastic pathways for ion uptake and critically evaluate the role of different types of membrane transporters in Na+ and Cl- uptake and intercellular and intracellular ion distribution. Our incomplete knowledge regarding possible mechanisms of salinity sensing by plants is evaluated. Furthermore, a critical evaluation of the mechanisms of ion toxicity leads us to believe that, in contrast to currently held ideas, toxicity only plays a minor role in the cytosol and may be more prevalent in the vacuole. Lastly, the multiple roles of K+ in plant salinity stress are discussed.
Бесплатно
Effects of phytopathogenic fungi on plants (review)
Статья обзорная
This article outlines explanatory data on the interactions between phytopathogenic fungi and plants, as well as infestation ways of pathogenic fungi on plants. A thorough analysis of the literature revealed that phytopathogenic fungi use a number of biochemical and mechanical methods to penetrate into the plant tissues, including the production of cell wall-degrading enzymes, also use toxins, effector proteins, and growth regulators. Cell wall degrading enzymes (CWDEs) in pathogenesis are the main weapon of phytopathogenic fungi.
Бесплатно
Статья научная
Mastitis is the most common disease in dairy farming, in clinical and subclinical form it is diagnosed in more than 50% of cows. Currently, various drugs and methods are used to treat mastitis. The article presents data on the effectiveness of the use of the preparation Ceftonit and preparation on the basis of cefquinome sulfate in the treatment of various forms of clinical mastitis during lactation. For the treatment of mastitis, the cows used the preparation Ceftonit®, Nita-Farm Russia, containing in its composition 50 mg/ml of ceftiofur, which is used in comparison with imported drug containing in its composition 25 mg/ml cefquinome sulfate. As a result of researches, it is established that the drug Ceftonit in the treatment of clinical mastitis in cows is not found in the milk of BRT by the AIM test and shows 100% therapeutic efficacy with an average recovery time of animals 5.5 days. Disease recurrence in the form of subclinical mastitis in the treatment with the drug Ceftonit was from 25 to 33%, and in the treatment with the drug based on cefkinom sulfate the number of relapses was greater and amounted to 44.44%. The use of the drug Ceftonit® for the treatment of mastitis does not lead to the culling of milk due to the presence of antibiotics, in contrast to the drug based on cefkinom sulfate, which has a restriction on milk, as confirmed by our studies.
Бесплатно
Efficient aspect ratio of the wing with at winglets
Статья научная
In the article, by the method of the system of equations of steady horizontal flight the effective aspect ratio of the wing with AT winglet wingtips is explored. The total aerodynamic force, created by all four parts of the wingtips is determined. The vector of the total aerodynamic force of the wingtips is represented in the form of components of a linked coordinate system. Equilibrium equations for the steady rectilinear motion of an aircraft with AT winglets type wing tips in a horizontal flight are recorded. From these equations it is obtained that, in the direction of motion, the longitudinal component of the vector of the total aerodynamic force of the tips reduces the force of the drag of the wing, the vertical component is added to the lifting force of the wing and increases it, and the lateral component, due to the symmetry of the wing, is zero. The coefficient of inductive drag of the wing with the tips is written in the form of the difference in the inductive drag of the wing without the tip and the coefficient of the longitudinal component of the total aerodynamic force of the tips. Writing the coefficient of inductive drag of the wing with the tips in the traditional form through the coefficient of lift and aspect ratio of the wing, the expression for the effective wing aspect ratio with the AT winglets, which is longer without aerodynamic termination. An important consequence is that at the constant weight of the aircraft, the product of the effective wing aspect ratio with aerodynamic wingtips to its coefficient of inductive resistance is a constant value, independent of the kind of the wingtips. It is shown that with increasing flight speed, and also by reducing the inductive speed, the aspect ratio of the wing decreases.
Бесплатно
Efficient use and protection of the Lesser Caucasus nature reserves plant cover
Статья научная
While using food crops, feed crops, medicinal plants found in nature reserves criteria for the rare and endangered species should be met the International Union for Conservation of Nature (IUCN). Although there is wild fruit spread in 12 Families, 22 Genera belong to 46 species are not used effectively in nature reserves. Appletree, Arachis, Pyrus, Sea Buckthorn, Mespilus, Crataegus, Rubus, Cornus, Ribes, etc. are considered expedient to use the raw material reserves of these fruits for industrial purposes.
Бесплатно
Electoral activity as factor of political socialization of youth
Статья научная
In given article is considered question to electoral activity as factor to political socialization youth. Future development of Uzbekistan society mainly dependent on youth; their professional knowledge degree, spiritual and behavioral qualities, especially their extent of electoral culture. We can estimate political behavior as youth’s articulating their position as citizens. An electoral activity represents the unique form in which subject of electoral process actively attends at election sand referendums for government organs according to their individual wishes. Electoral activity as a system consists of following elements: object, subject, objective, forms, circumstances, motives and norms, consequences and action process. Stability, independence, prosperity, military power, economic development indicators, security of national interest issues of the country and main activity base of society and government mainly dependent on the human factor. This plays a significant role in the process of modernization.
Бесплатно
