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Бюллетень науки и практики @bulletennauki
Статьи журнала - Бюллетень науки и практики
Все статьи: 6432
Статья научная
Let () and () be two natural variables that is and The pair () () is said to be C -pair if which are as the neighboring elements in Further we prove (Theorem 3) pair () () this pair is C -pair. Let () be natural variable with unlimited step that is d >0 -. Theorem 3 implies that the () with unlimited step can be defined only some subset and is any infinite set. That implies following conclusion (Statement 6). Let be a set of all prime numbers p : p If now it is obvious that | |0 Injective mapping with is said to be potentially antysurjective one (Definition III). Let be (Example 2) square n -matrix with k, m contains of positive rational numbers q, with. Everyone will easily believe that, if we shall assume only distinct numbers in depends essentially on values of the function, for example Now we accept = If we assume a hypothesis that limm( n )»0,6, then we have. (Example 3) Let ( A ) be a harmonic series (Example 3). We prove that ( A ) is the convergent series in addition to it converges to any infinite large number, though it is well known, its sum is not limited by any finite number. See, please, [1, 2].
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Статья научная
The study of the process of migration in aphids has great practical importance. Thus, the aphids pass from one plant to another by these morphs and feed there and maintain their population by growing. The literature information on the research of the photoperiodic reactions in aphids is sufficient. However, the seasonal adaptation characteristics of sugar beet aphids have not been studied up to date in Azerbaijan. For this reason, the study of an impact of photoperiod on the emergence of winged ones in the population of black bean aphid is one of the important issues. During the study of reaction of individuals fed in the same routine against the photoperiod in the next generations, it has been defined that short photoperiod is more observed in the following generations. It seems that the information collected from the former generations is directly passed to the next generations. The results show that the continuous breeding of these species by means of parthenogenesis is only available in the long day (14, 16, 18, 24 hours) routine. However, the winged individuals prevail in the short photoperiods. The preference of winged individuals in 24 hours of photoperiod rather than others (14-18 hours) is probably related to the physiological changes occurs in them.
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Analysis and optimization of the flow path within the protonic ceramic fuel cell stack
Статья научная
With the development of human society, the demand for energy is increasing, and energy, an essential global necessity, is decreasing significantly and is in danger of being depleted. Fuel cell is the fourth power generation facility after hydroelectric, thermal and nuclear power. Fuel cell flow channel is an important part of fuel cell, which has the functions of transferring reaction gas, discharging products and excess unreacted gas, and balancing fuel cell temperature. This thesis focuses on the model design and optimization of a 10-layer flat-plate proton ceramic fuel cell (PCFC) reactor. First, we design a 10-layer flat-plate PCFC reactor model structure, then we simulate the reactor using Fluent, analyze the multi-field coupling operating characteristics inside the target reactor, optimize the reactor based on the results, and finally, we analyze and discuss the optimization results.
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Analysis methods of the factors influencing on consumer market
Статья научная
The results obtained and their novelty: proposals and recommendations for improving the methodology for assessing the market of consumer goods, taking into account the characteristics of the region; scientifically grounded regional aspects of determining methods and directions of research of the consumer goods market; a system of factors influencing the formation of the regional market of consumer goods is determined, recommendations for forecasting market development tendencies are grounded; recommendations on organizational and economic directions of development of the consumer goods market of the region are given. The scientifically grounded proposals and recommendations given in the article can be used in developing measures for the stable development of the regional market of consumer goods, as well as in the development of teaching aids and methodological developments.
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Analysis of Ganja river basin according to geographical elements
Статья научная
The article provides an analysis of the Ganja River basin according to geographical elements. 8 geographical elements Caucasian, Holarctic, Arid or xerocontinental, Pluregional Boreal, Mediterranean, Palearctic and Iran-Turanian geographical elements were defined for the research area. Each geographical element was made on the basis of botanical geographical (floristic) regionalization.
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Analysis of curricula in terms of tolerance education of young school-age children
Статья научная
The subject programs of elementary school are analyzed in the context of tolerance education in children. The analysis criteria were the tasks of developing tolerance in junior schoolchildren and the ways (mechanisms) we identified for solving these problems. Professionally, a fully organized pedagogical process consists not only of didactic but also of educational foundations, which purposefully involves the organization of the classroom and extracurricular educational work. According to the authors, the main task of the school is to cultivate a sense of national identity, pride, honor and dignity in the younger generation. Only in the process of formation of the pupil's personality, some conditions of tolerance and separate ways of their realization were reflected in a superficial form.
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Analysis of methods limiting gas breakthroughs into production wells at the Fedorovskoye field
Статья научная
The article explores the reasons causing gas breakthrough from the gas cap into the producing wells and oil penetration into the gas-saturated part of the formation at the Fedorovskoe Field. It appears that gas breakthrough to the perforated intervals of producing wells are mainly caused by the geological structure of AS4-8 formations (absence of robust shale break/screen) and relatively small distances from the upper filter holes to the gas- and gas-and-oil-saturated portion of the formation. Two operation modes applicable for this field are described: for the wells intersecting the formation with horizontal shaft under impermeable shale break between gas-and-oil-saturated layers (cases of gas breakthrough are excluded) and for horizontal and vertical wells in the contact zones of gas-and-oil reservoirs or areas with thin split shale breaks (there is continuous gas breakthrough). The article describes engineering solutions ensuring insulation of gas breakthrough into wells...
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Статья научная
In the socio-economic security of the country it is possible to note 3 main parts: financial and economic freedom, which, taking into account the state of the global economy, is not absolute; strength and stability of the state economy, which includes the protection of property in all its forms, the formation of stable conditions for entrepreneurship, etc.; the ability to progress and self-develop, which is very important in the modern world. For economic entities, the forecast of social and economic security is all the more necessary, because their potential is the defining moment of anti-crisis formation and the guarantor of the financial and economic recovery of the state.
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Статья научная
The article reviews the issue of waterflooding of gas and gas-condensate wells in the East-Tarkosalinskoe Field. The article lists currently applied methods to prevent and elimination the troubles in question. Recommendations are given regarding the application of the new technologies and technical means.
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Статья научная
To maintain the security of the system in the meaning of its existence, it is necessary to complicate the influence of the rally element on the market mechanisms of risk management in all ways. The test of the essence of dynamic processes, in particular, the resistance, formed under the influence of disturbances of different nature, is considered to be a necessary part of formal procedures for solving a wide class of control problems in complex socio-economic systems. As a rule, the relevant tasks here are considered to be the development of a strategy of socio-economic political activity, the choice and study of the effectiveness of financial, economic and legal systems of regulation of various kinds of risks, forecasting trends in socio-political processes and others.
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Analysis of the natural and cultural dendroflora of the north-western zone of the Greater Caucasus
Статья научная
The role of specially protected natural monuments in the conservation of biological diversity is irreplaceable. Many reserves have been established in order to expand the network of specially protected natural areas of the Republic of Azerbaijan, to preserve biodiversity, and to use natural resources efficiently. Along with the State Nature Reserves, new parks and gardens have recently been built, with Eldar pine, acacia, alder, beech, etc. in the natural flora. Along with plants, trees and shrubs of the world flora (new species of catalpa, juniper, pine, cypress, etc.) were widely used. The research revealed that 81 species of natural flora and 36 species of alien flora were used in landscaping. Among the plants belonging to the alien flora, lilac catalpa, Kokatan tecoma, Japanese daisy, evergreen cypress plays a dominant role in the cultural flora on landscaping. The most commonly used species of local flora are oak, juniper, white acacia, sycamore, maple, hornbeam, ash, linden. The cultural dendroflora of Zagatala-Balakan region is represented by 44 taxa and 117 species of trees and shrubs of 91 genera; including 4 families, 7 genera and 16 species of gymnosperms; according to their life-stages: 42 species of trees, 51 species of shrubs, 5 species of lianas, 13 species of ornamental flowers, 1 species of cover plants; There are 80 species of natural flora and 37 species of alien flora.
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Статья научная
According to hazard categories (IUCN), 46 species from 35 genera were identified belonging to 24 families of rare tree and shrub plants common in the natural flora of Azerbaijan used for landscaping Absheron. As a result of the analysis, it was found that the NT category (almost endangered) includes 12 species, and the CR category (endangered) includes 8 species. The plant species studied in the article were also analyzed by phytogeographic region and life forms. The results of the study showed that in addition to landscaping, other measures for the protection of the studied plants are necessary.
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Статья научная
The paper presents problems existing in passenger traffic by urban passenger transport, as well as the analysis of factors hindering the development of bus routes. There have been studied both quantitative and qualitative indicators of a deterioration in the quality of passenger service by urban buses in the city of Kutaisi. For a comprehensive study of the issue using the time-table method of field observations, an experimental study of the passenger flow was carried out. Based on the system analysis, an assessment was made of the indicators of redistribution of passenger flows by bus and minibus routes: the number of motive power on the routes, in accordance with the percentage of coincidence of the parameters of traffic regimes with the transport schemes. A list of measures has been drawn up, the integrated implementation of which will facilitate the development of a safe and convenient city-class bus route system.
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Analysis of types financing of institutions health care
Статья научная
The article summarizes and analyzes the domestic and foreign experience of financing health care institutions. The author examined the financing options for medical and preventive institutions, the distribution of financial resources within various medical organizations, as well as the measures of material incentives for employees. Also, further plans for the development of health care financing in the Republic of Uzbekistan were discussed.
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Analyzing testing tools according to the five principles of language assessment
Статья научная
In order to have properties of a good test, assessment tools should meet the special requirements. In the current mini research, the selected test is analyzed and modified according to the five principles of language testing: practicality, reliability, validity, authenticity, and washback.
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Статья научная
This research investigates the anatomical structure of the calyx transverse section of 11 species of the Hedysarum genus from Central Asia. The analysis revealed that all species exhibit a more or less smooth or slightly convoluted upper surface and a lower surface with varying degrees of tuberculation. Regarding the mesophyll structure of the calyx, the studied species are mainly divided into two groups: in H. pumilum, H. severtzovii, H. micropterum, and H. wrightianum, the mesophyll is differentiated into lower palisade and upper spongy layers, which is considered an adaptive and progressive feature for the calyx; in other species, an undifferentiated mesophyll is observed, regarded as a primitive trait. Furthermore, the formation of large and giant idioblasts is characteristic of all studied species, located on the lower side of the calyx (directly beneath the lower epidermis), along with a 2-4-layered chlorenchyma beneath the upper epidermis, representing adaptive features.
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Angels and demons novel - a milestone in Dan Brown's creative work
Статья научная
Nowadays the genres eclecticism is so widespread that it is sometimes impossible to identify to which genre a work belongs. This situation, in turn, is reflected in the blurring of the frontiers between Highbrow and Lowbrow literature. Moreover, there are novels that contain some elements of Pulp fiction, and yet they do not belong to this type of literature. This situation is particularly topical with the works that open a series of sequels exploring the same theme or featuring the same protagonist, like the novel under our investigation. This research has proved that this novel contains artistic merit and cannot be referred to as Pop culture product, repeating the same stamp. Furthermore, we traced how the author’s concept of the archetypal notions of Angels and Demons was reflected in the novel. Thus, these results have been reached by implementing biographical approach in considering the writer’s literary career; historical approach in analyzing inaccuracies in depiction of the historical events; and mythological in tracing the reflection of the novelist’s archetypal concept. The benefits of this study include changing attitude to the literary heritage of the author and drawing more attention of scholars to the given novel.
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Annotated checklist of the fishes of Nizhnevartovsk district
Статья научная
The confirmed fishes of Nizhnevartovsk district waters (Russia, Western Siberia, Khanty-Mansi autonomous okrug (district)) comprise 24 species in 19 genera, 10 families, 6 orders and 2 classes found in Middle Ob River basin. There are also 5 species whose presence in Nizhnevartovsk district waters needs confirmation by the described specimens. The most diverse order is the Cypriniformes with 11 confirmed species (45.9%) followed by Salmoniformes with 5 species (20.8%), Perciformes (3 species, 12.5%), Petromyzoniformes (2 species, 8.3%), Acipenseriformes (2 species, 8.3%) and Gadiformes with 1 species (4.2%). Of the 5 introduced species (including three require confirmation), the freshwater bream Abramis brama (Linnaeus, 1758) and the pike-perch Sander lucioperca (Linnaeus, 1758) naturalized and are constantly found.
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Anomalies occurring in eggs in ovarian diseases in quails and ways of their prevention
Статья научная
Nowadays, people are suffering from food shortage. To meet the protein needs of people, meat and eggs of birds are of great importance. Among non-infectious diseases of quails in Azerbaijan, ovarian and oviduct pathologies are mainly observed. Ovarian pathologies are most often observed in ovaries of white English breed. Eggs obtained from them as a result of ovarian disease have no bark, are deformed, their weight is reduced, striped deposits are observed on the bark, and their ability to hatch is reduced. To prevent diseases of quails after 210 days use sodium salt of succinic acid, Aydagh zeolite, sprouted and enriched with ultraviolet rays wheat and Poly-Vital. Ovarian and oviduct diseases are prevented, and egg quality is improved.
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Anthropocentric model of discourse
Статья научная
The article delves into the new approaches to discourse highlighting its communicative, cognitive, pragmatic and linguocultural aspects. The aim is to scrutinize the notion of discourse in relation with human factor in different communicative settings. It is acknowledged that studies on the current topic area can be more successful by the integration of anthropocentric paradigm.
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