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Бюллетень науки и практики @bulletennauki
Статьи журнала - Бюллетень науки и практики
Все статьи: 7236
Theoretical review of developing innovative marketing strategies
Статья обзорная
The article discusses the theoretical issues of developing an innovative strategy. The author has reviewed the scientific literature on this topic. Also, the statistics of the number of technological, marketing and organizational innovations introduced in the Republic of Uzbekistan for 2008-2016 has been given. At the end of the article, the author outlined legal acts for the development of innovative marketing in the country, and also suggested a number of measures for the further development of the development of an innovative marketing strategy.
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Thermal-hydraulic performance analysis cold side of the plate heat exchanger using water-water
Статья научная
In this research, the thermal-hydraulic performance of plate heat exchanger (Ridan HHN no. 04) used in domestic water system is investigated experimentally. The hot water inlet keeps temperature and flow rate constant at 70 C and 0.1 l/s, the cold-water inlet remained 110 C with different velocity. The heat transfer coefficient can reach maximum when velocity of cold water is 0.2 m/s. Then the convective heat transfer coefficient increases with enhancement of Reynolds number and it is stable after more than 1200. Moreover, it is observed that Fanning friction factor decreases with an increase of the Reynolds number and it is showed by the empirical correlation. Therefore, it is possible to find that the increase of the Peclet number results in an increase of the Nusselt number as well when Peclet number small than 200. Finally, we get reference idea how to be cooling in the particular case using plate heat exchanger.
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Title intertextuality in Ray Bradburie's works
Статья научная
This article deals with the concept of intertextuality in the titles of Ray Bradbury’s short stories. It reflects the ideas of intertextuality in general, intending to define them through the examples of his short stories. It intends to explain why the author uses title intertextuality while decoding the plot of his short stories and the referred text. Through four stories, “There will come soft rains”, “Some live like Lazarus” “I sing the body Electric” “Perchance to dream” (also called “Asleep in Armageddon”) we find what role an intertext plays, being used in the title of the work and how it should be seen as an intertextuality as being as reference tool in new texts. That in turn helps us to understand the author’s mastery extend who while writing new texts that would refers to other texts in his title. Along the way, we will witness the value of science-fiction and its usage in his works.
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To questions of classification of Islamic banking products
Статья научная
In article development of interest in Islamic banking as to most of important tendencies of development of financial economy is considered. The modern Islamic bank leans in the financial and credit activity on a certain set of the financial instruments formulated by Sharia. Islamic banks carry out practically all traditional bank operations. In the activity they use various methods of financing, realize credit service of direct investments, carry out credit operations on the basis of leasing, rent and others worldwide. Islamic banks directly become large investors in national economies of the countries of the Muslim world. Besides, after assessment of economic efficiency of activity of data of banks, the governments of many countries began to enter amendments to the existing legislation for creation of more comfortable conditions for their activity. For a better understanding about Islamic banks there is a need of consideration of their operations which in every respect carry interest-free (but doesn’t mean profitless or unprofitable) and not speculative - Islamic character. In article on the basis of the deep and system analysis of set, financial instruments formulated by Sharia, the main norms of Islamic banks depending on their appeal to clients are described. Authors have made attempt to simulate several possible situations of interaction of financial and credit institutes with the partners and the efficiency of investment of capital for each of the parties is calculated. By results of the conducted research, one may say, that, despite so small period of existence, Islamic banks could provide alternative traditional the banking (financial and credit) services allowing to satisfy financial needs of each Muslim, regardless of the direction of financing, a form, a look and scales.
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To the issue of acute myocarditis
Статья научная
According to statistics, pathology of the cardiovascular system can occur in 80% of patients who have undergone various acute viral infections, including influenza. All these manifestations are compensatory in nature and are completed independently without additional therapy. Children have respiratory viral infections, arising heart failure and various rhythm disturbances, quite often with a protracted course. Perhaps the emergence of an acute process, as well as the presence of viruses that can cause difficulties in terms of diagnosis and diagnosis, and other controversial issues. This attempt to highlight some controversial points. The detailed historical aspect of the formation of this nosological unit.
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To the problem of TV innovations in the near future
Статья научная
This article describes the innovation in technology services. In the process the information about some new and improved gadgets was received. Today this area is evolving and the article discusses three new inventions that will help all mankind in the future. This theme is most relevant to the technical specialists, or people who are fond of TV.
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To the question of the etiology and clinical significance of the U wave of the ECG
Статья научная
This article reviews the etiology and clinical significance of the U wave of the ECG. The conclusion about the importance of competent interpretation of this wave in the treatment of such heart diseases as myocardial ischemia, hypocalcemia, hypokalemia, hypomagnesemia, coronary insufficiency and others. Advanced and proven mechanism of U wave.
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To the question on the technology of koumiss production
Статья научная
This article is devoted to the analysis of methods of production of koumiss. Koumiss, unlike kefir, has a more delicate, soft and gentle sour-milk taste, and aroma has tender flakes of casein. The ways of making koumiss are described. An accelerated, easier method of preparing koumiss without maturation and without prolonged mixing is known. However, this method was not widely used. The article describes that the technological regimes for the preparation of koumiss are controlled only organoleptically. The general techniques in the technology of making koumiss are revealed: thelong-term fermentation method and the method of short-term fermentation. The article shows the technology of koumiss production. The inventions of koumiss preparation are considered. It is concluded that there is a need for physicochemical studies of koumiss production and the establishment of its optimal regimes for Kazakhstan.
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Tomato crops powdery mildews in the western part of Azerbaijan and measures to combat it
Статья научная
In the western part of Azerbaijan, tomato plants currently make up half of the open and covered fields. In recent years, the range and damage possibilities of fungi, which were rarely encountered before and were not characterized by high damage, have expanded in the tomato plant belonging to the Solanaceae family. The route and stationary observation-calculation works conducted in the western part of Azerbaijan showed that numerous pathogens are spread in tomato crops. Among these diseases, it has been determined that powdery mildew disease, which was not of economic importance before, prevails due to its spread and damage to crops. A fungicide trial was conducted against the disease.
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Topical issues in training vocational educators of economy and management
Статья научная
The article is dedicated to considering the content of documents on vocational educators of economy and management. The conformity of the documents has been examined. The current employers’ requirements for vocational educators of economy and management and indication of current issues with the ways to solve them have been provided.
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Totem beliefs in livestock farming in the southwest of the Fergana valley
Статья научная
Based on the totem beliefs of the Kyrgyz people, various beliefs and rituals are determined. Most of them adhere to the Islamic religion, bones, wool, color of livestock and dairy products, items used to keep pets, are considered sacred. The scientific novelty of this article is that the information about totemic beliefs in livestock of the Kyrgyz in the southwest of the Ferghana Valley was summarized and presented in full for the first time on a scientific basis. The article aims to determine the characteristics of totemic beliefs in Kyrgyz livestock in the southwest of the Fergana Valley. The study is based on the ceremony dedicated to Zengi Baba and Akyika is a single important ritual that combines totemic faith and the principles of Islam. The remnants of totemic beliefs in livestock were syncretized with pre-Islamic beliefs and Islam, and were regularly used in everyday life among the people. Most of the totemic belief remnants lost their original meaning under the influence of Islam, some merged with it and are entirely used in the traditional culture of the Kyrgyz.
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Towards the analysis of paleoanthropological finds from the Selungur cave
Статья научная
This study focuses on the paleoanthropological analysis of odontological materials recovered from the Selungur Cave site, which dates to the Upper Paleolithic period in Central Asia. The scientific interpretation of both archaeological artifacts (lithic assemblages) and organic remains from this site remains a subject of debate. In particular, the taxonomic classification of ancient human teeth recovered from the cultural layers of Selungur Cave has been contentious, leading to unresolved discussions regarding their attribution to a specific hominin group. However, recent morphological analyses conducted by the eminent anthropologist, Professor A. Zubov, have provided critical insights into this issue. Comparative odontological assessments indicate that the dental remains from Selungur Cave exhibit morphological affinities with archaic hominins, particularly Asian Homo erectus, thereby offering a more definitive classification of these remains.
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Статья научная
This article is devoted to learning long traditions of Surkhan valley agriculture. It was proved by ethnographical field materials and archive documents in this article that Surkhan valley was surrounded by mountains covering 3 sides, only southern side was open to Amu-Darya, and this geographical position was very comfortable for agriculture. It was scientifically determined that Surkhan valley was not only high-tempered area, but also very convenient land with sunny weather. New kinds of the crops of Surkhan valley agriculture were augmented according to local position at the period of Bukhara emirate. Creating special kinds of land products and cereals suitable for valley climate were written based on archive sources. Changes happening on sowing crops in the valley influencing political, economic and ethnographical processes resulted by Bukhara emirate’s being dependent to Russian empire were given based on scientific literature, archive materials, and statistics. As well as stretching cotton-growing lands, traditions of agriculture, and transformation processes were analyzed by many historical-ethnographical sources for this time.
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Training at school and university: results of the imitating modeling
Статья научная
In the article the features of use of the computer simulations for study of the didactic systems are discussed. It is offered the three-component model of training of the learner interested by exact sciences, which after leaving school goes to university on physical and mathematical faculty. The purpose and tasks. To study opportunities of construction of the “teacher-learner” model which takes into account: 1) division of the educational disciplines on the “exact” and "humanitarian-qualitative" subjects; 2) distributions of the educational information on years of training; 3) transitions of the weak (quickly forgotten) knowledge in the strong knowledge, which the pupil forgets slower; 4) dependences of the learner’s motivation and the assimilation coefficient from character of the learned subjects and year of training; 5) degrees of use of the studied material on various disciplines at the subsequent training and everyday life. To create the imitating model of training at school and university, to analyse the results of modeling. Methodology. The methods of the qualitative, mathematical and computer (imitating) modeling are used. It is analysed the one-component model of the didactic system. The three-component model of training at school and university is created, the system of the differential equations is written, the computer program, which calculates the learner's knowledge in the various time moments, is submitted. Results. The computer model of the system “teacher-learner” is offered. The graphs of temporary dependences of the strong and weak knowledge of the physical and mathematical and “humanitarian-qualitative” disciplines are received and analysed. Conclusions. It is proved the possibility of creation of the imitating model of training at school and university which for any moment of time allows to calculate approximate quantity of: 1) the strong and weak knowledge of learner; 2) the knowledge of the “exact” and “humanitarian” subjects; 3) the pupil’s knowledge studied within concrete year of training.
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Статья научная
Proton exchange membrane fuel cells (PEMFCs) are vital energy-conversion devices in a hydrogen-fueled economic. In this study, we performed density functional theory (DFT) calculations to study 4e- oxygen reduction reaction process on transition metal embedded in single and double vacancies (SV and DV) in a graphene. We calculated bonding energy and adsorption energy on CoX3 (X = B, C, N, Si, P and S) and CoX4 (X = B, C, N, Si, P and S) embedded in graphene. Our DFT results indicate that formation of CoX3 is unfeasible and the formation of CoX4 is feasible. In addition, the crucial role of ligand atoms near embedded metal atoms is revealed via the molecular orbital theory. Then the Gibbs free energy of CoX4 are calculated and the CoN4, CoS4, and CoP4 are predicted to be active for catalyzing ORR, and these also show ligand atoms’ coordination effect for catalytic activity of central metal. Furthermore, we observed that they have identical rate-determining step (RDS). This work can provide some references for transition atoms catalytic doped in carbon materials.
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Transition of nanoparticles Fе3O4 and Al in a simplified aquatic food chain
Статья научная
This article presents the results of experiments on the transitions of Fe3O4 nanoparticles (20-30 nm) and Al (18 nm) from one organism to another, making up a simple food chain (plant-mollusk-fish). In experiments, mollusks (Melonopsis praemorsa) feed on the leaves of plant ( Elodea canadensis ) after being contaminated with Al or Fe3O4 nanoparticles. Nanoparticles were detected using TEM analysis in the cells of the mollusk’s organs. Then the fish (Oncorhynchus mykiss) were fed with mollusks. The distribution and localization of nanoparticles in fish organs has been determined. Experimental results showed that nanoparticles can pass from one organism to another in the food chain. Nanoparticles accumulate mainly in the liver of mollusks and fish.
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Translating Methods of Realities in English, Russian and Kyrgyz Culture
Статья научная
This article is devoted to the problem of translation of linguistic realities in English, Russian and Kyrgyz cultures. The article is an overview of the realities in the mentioned cultures. An attempt is made to find ways to overcome the linguo-ethnic barrier when translating concepts from the Kyrgyz language, reflecting the national character. The essence of this problem boils down to the fact that the main requirement of translation is to preserve the originality of the translated text and to study the cultural component of the text. It should be aimed at identifying the differences between the original and the translation, not only because of the linguistic form, but also because of the cultural one. The main purpose of the article is to analyze the elements of the linguistic specificity of translation of realities in English, Russian and Kyrgyz cultures. The subject of the research is ethnic elements - objective problems arising during translation, and methods of their solution, that is, the transfer of cultural realities during translation. The article examines the theory of cultural realities in the translation aspect and analyzes the main features and methods of translating words-realities. The selected realities are analyzed from the point of view of their translation methods to identify the most effective ones. To solve the set specific tasks, the following methods were used in the work: analysis, synthesis, classification and generalization of the data obtained. As a result of the study, material was obtained, the analysis of which made it possible to conclude that the choice of one way or another way to overcome the linguo-ethnic barrier depends on the situation of intercultural communication, as well as on the goals of the participants in the communication.
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Статья научная
Breast cancer (BC) is the most common cancer in women worldwide. This paper presents results of treating patients with metastatic triple-negative breast cancer (BC). All the patients underwent surgical intervention, adjuvant, neoadjuvant chemotherapy and radiotherapy were evaluated the volume of which depended on the stage of the disease. The side effects of different treatment options were analyzed. Triple-negative breast cancers have a relapse pattern that is very different from hormone-positive breast cancers: the risk of relapse is much higher for the first 3-5 years but drops sharply and substantially below that of hormone-positive breast cancers after that. Five-year relapse-free and overall survival rates were traced in this patient group. It is concluded that the used procedures of combination treatment for metastatic triple-negative BC are highly effective.
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Trend models for the analysis of socio-economic security
Статья научная
The correctness of the trend choice for forecasting the characteristics of socio-economic security statistics can be qualified by the mean square error and the aspect of “Ascending” and “Descending” series (although there are other aspects, for example, the aspect based on the median of the sample). According to the proposed model, it is possible to predetermine the average monitoring errors for the development of the lower and upper limits of the forecast version of the values of the characteristics of socio-economic security statistics. The creation of a model is a rather labor-intensive process, as a result of which it is advisable to use, as a rule, the deterministic component of trend models when predicting the characteristics of socio-economic security statistics.
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Trends of development of the Uzbekistan stock market and analysis of influencing factors
Статья научная
The relevance and scientific and practical significance of this topic is insufficient knowledge of the theoretical and practical aspects of improving the infrastructure of the stock market in Uzbekistan is not sufficiently studied as an independent, independent research facility, determines the relevance of the chosen topic. In the opinion of the author, in the conditions of the current modernization of the economy it is especially important to create conditions and establish a mechanism for access to the world stock markets and have a share in it. The article analyzes the dynamics and the state of the exchange commodity turnover for 2010-2016, studied the problems, theoretical proposals and recommendations aimed at improving the efficiency of the stock market. In addition, a number of factors affecting the development of the stock market of the Republic of Uzbekistan are analyzed and grouped into groups based on regression analysis, the relevance of the relationship and the direct relationship between them and the conclusions for the development of factors that are high in this regard are determined. At the end of the article, there are a number of proposals for the development of the country's stock market.
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