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Бюллетень науки и практики @bulletennauki
Статьи журнала - Бюллетень науки и практики
Все статьи: 6652
Test designing principles and related problems
Статья научная
The article discusses the role of following assessment principles while designing tests. Problems and obstacles of test designing and administering at national higher education context are illustrated, being grouped into seven respective principles.
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Test of the layout of the correction circuit with a plate heat exchanger
Статья научная
Pulse enhanced heat transfer technology is introduced, and a plate heat exchanger is designed. A pulsating valve is installed at the outlet of the heat exchanger to pulsate the heat medium. Pulsating and non-pulsating heat transfer tests are carried out on the same heat exchanger. On the basis of experiments, the effective temperature difference, heat flow and convective heat transfer coefficient of the heat exchanger at different pulse frequencies are analyzed by combining the theory of pulse enhanced heat transfer technology, heat transfer capacity, heat flow and convective heat transfer coefficient. Find the relationship between pulsation frequency of heat transfer effect of heat exchanger. The experimental results show that the heat exchanger has high heat transfer efficiency under the experimental conditions when there is pulsation.
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Testing of the model of the heat exchanger supercharger with a flat active part
Статья научная
This paper designs a pulsation-generating structure to provide pulsating flow for experiments. The relationship between frequency, flow and pulsating flow enhancement heat transfer is discussed separately. The characteristics of pulsating flow enhanced heat transfer are analyzed, and the theoretical research and engineering application of pulsating heat transfer are proposed. The scheme of the laboratory installation is developed, which is an independent circuit from the heat source with a pulse circulation of the coolant. The unit allows testing the heat exchanger-supercharger at different performance at the frequency of fluctuations of the coolant from 0.5 to 2 Hz. As a result of thermal tests, graphs of temperature changes over time in the heated and closed circuit at flow interruption frequencies from 0.5 to 1 Hz are obtained. It is found that with increasing frequency of flow fluctuations, the heating time of the coolant in a closed loop decreases by almost 1.85 times.
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Tetranychus urticae Koch biology on apple trees
Статья научная
The two-spotted spider mite ( Tetranychus urticae Koch) is a polyphagous arthropod herbivore that consumes over 1,100 plant species from 140 distinct plant families, including those producing harmful chemicals in temperate and tropical climates. It is an important pest in greenhouse and field cultivation, causing damage to various crops such as citrus, apples, grapes, tomatoes, peppers, cucumbers, strawberries, maize, and soy. T. urticae ability to spread over agricultural fields and adapt to environmental stressors is linked to its high propensity for mutation, leading to the highest frequency of pesticide resistance among arthropods. The genetic diversity of T. urticae gathered from apple orchards throughout Poland has been studied to investigate potential correlations between molecular variations and the occurrence of resistance to METI-acaricides. Research has shown that an abundance of leaf pubescence on the abaxial leaf surface adversely affects the development of European red mite, two-spotted spider mite, and carmine spider mite. However, due to variations in leaf sizes, tree canopy, tree ages, and the existence of natural enemies, it is impossible to compare data gathered due to variations in leaf sizes, tree canopy, tree ages, and the presence of natural enemies. Pesticide treatments negatively impact fruit plantations' ecosystems, devastating biodiversity, altering the makeup and structure of arthropod populations, and promoting mass reproduction of phytophage mites by displacing certain species with others. The most extensive research has been done on the common spider mite's development of resistance to avermectin group preparations, with some studies showing resistance to multiple acaricides.
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The Aryan myth of the first man Manu and parallels in the Kyrgyz epic of Manas
Статья научная
The ancient Kyrgyz had a different idea of the creation of the First Man. They did not even know the word ‘adam’, they called a person ‘kishi’, ‘kishi uulu’. We know this from the ancient Kyrgyz scripts from Enesai. And despite the fact that we, the Kyrgyz, converted to Islam almost a thousand years ago, the storytellers did not forget the information about the creation of the First Man. For example, in the description that characterizes the main character of the Epic of Manas, information relating to the ancient Aryans about the creation of the First Man has been preserved. Studying them, comparing the myths of two peoples (Aryans and Kyrgyz) we came to the conclusion that they have the same root. Although historians have not yet recognized this, Kyrgyz philosophers assert the idea that Manas and Manu are one and the same mythical character. This article is our contribution to this idea.
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The Classification of Desert and Semi-desert Vegetation of the Caspian Coast (Azerbaijan)
Статья научная
The article outlines the fractional classification of the semi-desert, desert vegetation covers of the studied territory of the coastal strip of the Caspian Sea of Azerbaijan. We studied the phytoceonological indicators of communities related to forests, shrubs, semi-desert, desert, vegetation. 3 types, 12 formation classes, 69 formation groups and 92 associations are distinguished.
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Статья научная
The purposeof this article is to identify the concept of Love in two works, as well as to reveal the image of the woman Aksiniya and Jamila. The authors use the method of theoretical analysis of modern scientific literature on the problem, conceptual analysis of a work of art, a comparative study of the image of a woman in two works. The article briefly describes such concepts as: Love-Eros, Love-Mania Love-Storge, Love-Pragma. In the main part, the characteristics of the concept of love are presented and descriptions of the main heroines of the works are given. In conclusion, the authors come to the opinion of the parallelism of the feelings of love of Aksiniya and Jamila.
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The Oliy Majlis of Republic of Uzbekistan and its foreign resembles’ activities in comparison
Статья научная
The Senate of Oliy Majlis is place where democracy begins and country’s economy flourish. A Senator is an appointed representative that is required to be a symbol of the population. The role of the Senate is to read the legislation proposed by the Legislative Chamber of Republic of Uzbekistan and suggest changes or amendments. Therefore, the article covers the main activities of the Senate and senators. Moreover, the head of authorities and public administration are to provide their annual report to the Senators. It emphasizes the role and position of Senate in the society.
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The Process of Weaving New Types of Adras National Textile
Статья научная
This article describes our experimental research on the technology of production of a new range of national textille at the production enterprise Yodgorlik LLC in Margilan and its selling.
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The Role of Mathematics in the Formation of Pupils’ Creative Activity
Статья научная
The article is devoted to the problem of the development of the creative activity of students in grades 5–6 in the process of teaching mathematics. It is noted that the fulfillment of a creative task requires from students not a simple reproduction of information, but creativity, since the tasks contain a greater or lesser element of obscurity. A creative task is the content, the basis of any interactive method. A creative task (especially practical and close to the student's life) gives meaning to learning, motivates pupils. To develop the creative activity of students, you can use specially developed various software tools (Learning Apps, Mentimeter, Quzizz, etc.) in the lesson. With the help of a huge number of online services, you can create a whole collection of interactive tasks of the following nature: study an interactive lecture and answer the questions; answer questions of the test, quiz (with one or many correct answers); build a timeline and others.
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The Role of Teachers’ ICT Skills in the Development of Scientific Views of High School Students
Статья научная
The article discusses the development of the learning process in the new information society, the importance of using new technologies, their application in the learning process. It also emphasizes the importance of inculcating teachers’ knowledge and skills in the formation of the worldview of high school students using ICT tools and notes that the application of new technologies in the learning process is an important feature of the modern learning process.
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Статья научная
The review highlights animal coronaviruses, their pathogenicity, and the possible role of domestic and agricultural animals in the further spread of the COVID-19. Joint researches have been established amongst an international team of scientists regarding a close phylogenetic relationship of the coronavirus SARS-CoV-2 with the coronaviruses of bats and carnivores, especially with the representatives of the Felidae family (domestic cats). However, the case of Middle Eastern SARS transmitted by camels has required special attention to biological safety measures in farms.
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The Russian hotel industry: condition and development
Статья научная
The aim of the article is to study the condition and development of the Russian hotel industry. The factors of internal and external environment that exert the great influence onto the development of the hotel business in Russia were analyzed. The main problems of the development of the hotel business in Russia related to the factors of both macro-economic and micro-economic characters and some political instabilities. The competitive advantages of the Russian hotel industry include mainly changes in the system of interaction between employers and higher education system and changes in the system of personnel training. Present analysis also shows the further development of the Russian hotel industry.
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The Sovietization of Azerbaijan: historical perspective
Статья научная
The Sovietization of Azerbaijan, spanning from the early 1920s to the dissolution of the Soviet Union in 1991, was a transformative period that significantly impacted the country's political, social, economic, and cultural landscape. This paper explores the multifaceted process of Sovietization and its enduring legacy on Azerbaijan's development. Politically, Sovietization entailed the establishment of authoritarian rule, characterized by one-party dominance and the suppression of political dissent. Socially, it led to both advancements in education and healthcare and the suppression of cultural and religious freedoms, contributing to tensions within Azerbaijani society. Economically, Sovietization fostered the development of heavy industry and infrastructure but also resulted in environmental degradation and economic inefficiencies. Understanding the complexities of Sovietization is crucial for comprehending contemporary Azerbaijani realities and ongoing efforts towards political reform, economic development, and social progress.
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Статья научная
Mortality and morbidity of pregnant and maternity women is a big problem in developing countries like Indonesia. The support of husbands, parents, and midwives in taking care of pregnant women is important for the health of mother and baby fetus. One of a problem in taking care of pregnant women, is maintaining the emotional stability and behavior of pregnant women. The strategy to optimize support for pregnant women is to provide Maternity Waiting Homes. The purpose of this study was to analyze the support of husbands, parents and midwives in optimizing the function of Maternity Waiting Homes. This research is qualitative descriptive research. Data collection techniques with in-depth interviews, observation, documentation and Focus Group Discussion. The core informants consist of midwives who managed the Maternity Waiting Homes and doctors, main informants consist of pregnant women, husbands, parents, and midwives, supporting informants consist of public health center nurses and sub-district stakeholders. This research located in Wonogiri Regency (kabupaten), Central Java Province in Indonesia. Based on the results of the study, husband’s, parents and midwives support in the normal pregnancy has a positive impact on the physical and psychological aspects of pregnant women until delivery. While husbands, parents and midwives support in unwanted pregnancies did not have positive impact on pregnant women. The existence of Maternity Waiting Homes has not functioned optimally in supporting the amenities of mothers and babies. Thus, social support (husband, parents and midwife) is a determinant factor of emotional stability and the behavior of pregnant women.
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The Whorf hypothesis and language manipulation in dystopian literature
Статья научная
Problem of language manipulation reflected in dystopian fiction suggests certain changes that drastically influence mentality of people. Deeper analysis of dystopian texts such as ‘Cloud Atlas’, ‘We’, ‘Nineteen Eight-Four’, ‘Brave New World’ and other works reveal that the one, who controls language, controls the mind of people. Language as such carries within itself many meanings related to culture, values, beliefs and many more, and thus limiting the open expression in language restricts access to that information that is stored behind words. This matter is touched by The Whorf hypothesis.
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The Yahyo Gulomov role in the study of the primitive history of the Bukhara oasis
Персоналии
In the 50s and 60s of the XX century, the first archaeological excavations were carried out in the western part of the Bukhara oasis, in the foothills of the Zarafshan River. It is headed by Yahyo Gulomovich Gulomov, the father of Uzbek archaeology. The expedition will find the sites of Neolithic and Bronze Age communities in the area, and later excavations at these sites will reveal many innovations in our history. The article discusses the role of Yahyo Gulomov in the study of the primitive history of the Bukhara oasis and his great contribution.
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Статья научная
This study examined the effects of ferric oxide and zinc oxide nanoparticles (NPs) at various concentrations on the activity of antioxidant system enzymes (superoxide dismutase and catalase) in the sprouts of durum and soft wheat varieties. The research objects included durum wheat varieties ( Triticum durum Desf.) Gyrmyzy Bugda, Garagylchyg-2, Yagut, and Karabakh, as well as soft wheat varieties ( Triticum aestivum L.) Mirbashir-128, Gobustan, Sheki-1, and Dagdash. To determine the optimal concentrations of nanoparticles influencing the activity of antioxidant enzymes in different wheat varieties, molar concentrations of zinc oxide NPs (0,1 mM, 0,01 mM, and 0,001 mM) and mass concentrations of ferric oxide NPs (15 mg/kg, 30 mg/kg, 50 mg/kg, and 100 mg/kg of soil) were applied. The highest catalase activity was observed at a zinc oxide NP concentration of 0,01 mM for both durum and soft wheat varieties. For ferric oxide NPs, the optimal concentration was found to be 30 mg/kg for durum wheat varieties and 15 mg/kg for soft wheat varieties. Thus, ferric oxide and zinc oxide nanoparticles show potential for use as pre-sowing seed treatments for various durum and soft wheat varieties. However, determining the optimal NP concentrations for the specific crops being studied is a critical requirement for their effective application.
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The anti-dogmatic metaphors in M. Bulgakov's novel “The Master and Margarita”
Статья научная
The article describes Christian reminiscences in Mikhail Bulgakov’s novel “The Master and Margarita”. From the perspective of evangelical traditions the themes, issues and pro-genre originality of the work are explored in the novel. The novel is analyzed in terms of menippea genre. In addition, the specifics of using the “shift” techniques lexical bias are discussed in the article; violation of the logic of cause and effect linkages, accurately traced episodes, as well as the expansion of the thematic fields, images with symbolic meaning, artistic ambiguity by using words are also described in this article. The reasons of rejection of the classical model of the universe, the binary system of concepts (good and evil, light and darkness, harmony and chaos) are analyzed. A comparative-typological analysis of the main characters of the novel is drawn. The range of problems are touched upon the issue, there are risen and closely intertwined topical issues and at the same time eternal issues: “What is truth?”, “What is real and imaginary freedom?”, “Man and his faith”, “The problem of power, conscience, man’s responsibility for his actions”, “The artist’s fate in a totalitarian regime”, “Why do betrayals happen?”, “Where is the border between mind and common sense?”, “How does true charity, love and devotion become apparent?”.
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The aspects of the homonymy in Persian
Статья научная
The article studies the phenomenon of homophones, homographs and homoforms in Persian that has been paid less attention. The research comparatively analyzes the theories of linguists on homophones and discusses the appropriate ideas respectively.
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