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Бюллетень науки и практики @bulletennauki
Статьи журнала - Бюллетень науки и практики
Все статьи: 8087
Study of stable social relations in the family in the works of eastern thinkers
Статья научная
In this article, since ancient times, advanced persons in society, scientists, scholars and sages have paid particular attention to the issues of family and marriage. Abu Raikhan Beruni, Abu Ali ibn Sina, Abu Nasr Farabi, Yusuf Khos Hajib, Kaykovus, Alisher Navoi, Abdullah Avloni, Abdurauf Fitrat, many great scholars and scientists of the East left behind many scientific and practical ideas about raising a well-rounded person in their family and family social relations. These ideas are great importance for modern science and practice. Eastern thinkers of the past emphasized the importance of the family and family education in the maturity and development of a well-rounded person. In particular, they paid special attention to the fact that interpersonal relations in the family, the moral formation of the father and mother have a special place in the upbringing of the child, that the integrity and harmony of the family depend on all the family members. The Avesta, a book of Zoroastrianism written 2700 years earlier, states that the family is a sacred place, and that husbands and wives are equally responsible for the stability of family relations, especially in raising children. The following is said about what depends on the peace and well-being of the family: “Porso, if a person restore a house and allocates a place for fire, his family, his wife and children, if his house is filled with good things and his wife and children live comfortably, if there is faith, constant fire, and other things in abundance in his house, that address is respectable”. At the same time, it is explained that what should be paid special attention to ensure positive and stable relations in the family. According to the Avesta, it is better for the father to be the leader in the family.
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Study of sulfonamides (used as corrosion inhibitors) for possibility to adsorption on steel
Статья научная
In this paper, the process of adsorption of organic compounds of the sulfonamides class on iron (available in 97% of St3 steel) is modeled using the HyperChem package version 8.0.7 using the semi-empirical ZINDO / 1 method. The structures of sulfonamides for the study were chosen so that the sequential complication of the molecular structure could be traced. Such an approach, as will be shown below, accurately reflects the process of corrosion protection with bacterial content by chemisorption of an organic compound on the metal surface to form a complex compound. In the course of the study, the compositions of the complexes obtained, the energies of the boundary orbitals, and a graph depicting the dependence of the charge density on the iron atom on the component of the corrosion rate that is due to chemisorption effects were obtained and analyzed. On the graph there are equations of lines.
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Study of the Chemical Composition of the Fruits of Crataegus orientalis L. and Use
Статья научная
The article presents a phytochemical study of the fruits of Crataegus orientalis L. and, based on the results obtained, a comprehensive scheme for their use was developed. The main components of oriental hawthorn fruits (flavonoids, carotenes, water-soluble polysaccharides, etc.) were sequentially isolated from the same sample and studied using modern physicochemical methods. The characterization of these compounds was achieved by chemical, as well as various chromatographic and spectroscopic (UV/VIS, 1h- and 13c-nmr) methods. The scheme presented in the research work is dedicated to solving a very important and important problem in the direction of waste-free or low-waste complex processing of plant raw materials. A scheme for complex processing of fruits is proposed, including stage IV and allowing the extraction of carotenoids, flavonoids, water-soluble polysaccharides, pectin substances of hemicellulose, α-cellulose and fatty oil from seeds.
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Study of the Comparative Effects of Veterinary drugs on Ovarian Organ Pathologies in Quails
Статья научная
This study investigated diseases affecting the reproductive organs of replacement quails during the period from their transfer to the parent flock up to 60 days of age. Additionally, the effectiveness of veterinary antibiotics applied for therapeutic and preventive purposes was evaluated. The findings demonstrated that improper selection of replacement birds prior to their introduction into the parent flock leads to a more pronounced manifestation of diseases after transfer. Quails carrying latent infections fail to produce eggs and are often culled within a short period, which negatively impacts the long-term productive utilization of the parent flock. Among the antibiotics used in the study, Ciplover and Avidox showed the highest efficacy in the treatment of oviduct-related diseases.
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Статья научная
A number of studies have shown that tellurides are optimal semiconductor materials for use in thermoelectrics and in the fabrication of memory devices. In this study, antimony telluride, a widely used tellurium compound, was synthesized via electrochemical deposition from a citric acid-based electrolyte. Antimony telluride co-deposition was performed electrochemically, yielding thin films. The kinetics and formation mechanism of thin and nanostructured antimony telluride layers were studied using an IVIUMSTAT Electrochemical Interface potentiostat. The polarization pattern was analyzed, and it was established that the process occurs under concentration polarization conditions. The polarization pattern was examined using linear and cyclic polarization curves. Electrolytic solutions of varying concentrations were used, and it was found that homogeneous films with a stoichiometric composition and a smooth surface are formed from a solution with a 1:1 component ratio. The effect of electrolyte temperature on the reduction process was also studied. It was shown that as the electrolyte temperature increases, the reduction rate increases and films with different surface morphologies are formed. The most effective films were obtained at a temperature of 350 K. At higher temperatures, deterioration in adhesion and the formation of films with uneven surfaces are observed. The composition of the films obtained at the selected optimal electrolyte concentration was confirmed by X-ray phase analysis. It was found that the atomic ratio of elements in the composition of the obtained films is close to stoichiometric and corresponds to the compound Sb₂Te₃. Images of the film surface structure were obtained using a scanning electron microscope (SEM), confirming the nanostructured nature of the particles forming the film.
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Study of the Effect of Rheum ribes L. Plant Extract on Human Lung Cancer Cells in vitro (A549)
Статья научная
An extract of Rheum ribes L. was isolated and its effect on lung cancer cells (A549) was determined. Cancer is a group of diseases in which malignant tumor cells with the potential to spread and undergo abnormal cell division break away from their original location and invade other parts of the body. According to literature and studies, rhubarb is used as an important medicinal plant. Its medicinal use is due to the presence of anthracene or its derivatives (e.g., anthraquinones) in its composition. The chemical components were isolated and studied. The effective effect of rhubarb extract on cancer cells was determined - there was a decrease in the growth of cancer cells.
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Статья научная
The presented article provides information about the vegetation of woody species from the family Rosaceae Juss. distributed in the forest-edge shrublands of the Zangazur National Park, located within the flora of the Nakhchivan Autonomous Republic. The article also offers extensive data on the phytosociological characteristics of the woody plants from the Rosaceae family found in the studied area, as well as on the formations, associations, and for the first time, the subassociations identified by us that are formed by these species. As a result of our numerous studies, for the first time, the vegetation of the forest-edge shrublands of Zangazur National Park has been classified based on dominant species. In this classification, dominant species are defined as those with a presence of 50% or more, subdominants around 10%, and other species are evaluated as accessory (assector) species. According to our research, for the first time, a phytosociological classification of the vegetation formed by the woody species of the Rosaceae family in the forest-edge shrublands of Zangazur National Park has been carried out. As a result, 2 formations, 6 associations, and 3 subassociations were identified, and the term subassociation has been applied by us as a unit within the vegetation classification.
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Статья научная
Cosmetic and medical oils have been widely used in medicine and cosmetology for many years. The main function of medical oils is to be a carrier in medicinal preparations. But in many cases, they perform a therapeutic function at the same time. It should be noted that for obtaining medical and cosmetic oils, low-sulfur and low-paraffin oils are more appropriate. In the context of the conducted research, the antimicrobial activity of various combinations of essential oils obtained from eucalyptus and thuja plants with therapeutic white naphthalan oil taken as a control variant was studied to clarify the effective bactericidal action mechanism. In the preparation of these compositions were prepared with the addition of therapeutic white naphthalan oil as the main component, and in addition, essential oil separated from eucalyptus and thuja plants in the ratio of 1:0,04:0,08:0,1 was analyzed for their antimicrobial effects on 4 microbes ( Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, Candida albicans ). Medicinal and cosmetic products were determined according to the received antimicrobial effective compositions.
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Статья научная
Human beings have used plants as medicine for various health cause of years. Plants are widely used in the traditional medicine of different countries and are a source of strong drugs. To evaluate research some bioactive properties of the extract of the Crocus cancellatus subsp. mazziaricus (Herb.) B. Mathew, 1982 the antioxidant activities of these extracts were analyzed by means of cleaning methods (DPPH, ABTS scavenging activity), β-carotene/linoleic acid test system and FRAP activity. Phenolics and flavonoid contents as the equivalents of gallic acid, quercetin respectively. The phenolic content of the extracts was analyzed using HPLC. Brine shrimp lethality test was applied to analyze cytotoxic activity. The obtained results indicated that the highest phenolic compound ferulic acid with 2376.2±0.00 µg/g was in extracts. The highest total phenolic and flavonoid were found in the ethanolic extracts. The aerial part-methanol extract exhibited the highest antioxidant capacity and the corm acetone extract the highest amount of ferric reducing power activity. Among the four different extracts, the acetone extract showed the highest amount of radical scavenging both corm and aerial parts. The brine shrimp lethality assay of bulb ethanol extract has showed good cytotoxic with LC50 of 320.535 μg/mL. This study will be a source for future studies.
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Study of the concepts of social and economic security of the Republic of Belarus
Статья научная
In recent years, the financial and economic recovery increasingly rests on the problems of development of the transport network and energy. The measures are taken in recent years, including the reform of monopolies, have not led to a significant increase in investment in these segments of the economy. To some extent, this is due to the lack of institutional criteria to ensure the openness of their work, as well as control over the effective expenditure of funds. In order to resolve these tasks, the Government of the Republic of Belarus will implement measures aimed at the subsequent implementation of institutional reforms and stimulating the pace of financial and economic recovery. We need urgent measures aimed at improving the institutional system, including the creation of accurate and clear ‘rules of the game’ for all subjects, ensuring an increase in the confidence of all subjects of financial, economic and political activity in the Belarusian society. The previously mentioned instruments of the mechanism of ensuring the socio-economic security of Belarus form a strong base for the continuation of sustainable development for the long term...
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Статья научная
Complex natural-geographic and agroclimatic conditions regions of Azerbaijan, long and anthropogenic effects on the natural objects have led to the emergence and widespread erosion. currently, 43.3% of the land Republic affected by erosion. In the Republic developed all kinds of erosion, particularly irrigation water and wind. At the present stage of development of agriculture, widely implemented land reform. Ubiquitous privatized land, where at this point erosion control is a precondition for improving soil fertility, crop yields, requiring reference to global studies improve their fertility.
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Статья научная
During 2018-2024, in the cities of Baku and Ganja, where pets are widely kept and stray dogs and cats are prevalent, as well as in the cities of Gazakh, Goygol, Goranboy, Gadabey, Dashkasan and Shamkir, sick and suspected dogs and cats were examined. In total, 145 dogs and 160 cats were included in the examination. Hair, itchy skin samples, and blood samples were collected from the dogs and cats involved in the examination, respectively. In addition, for the prevention of microsporia, samples were taken from the cages, mats and surfaces of care items for sick dogs and cats in the dog and cat shelters created under Azerbaijan Veterinary Scientific Research Institute before disinfection and after the effect of disinfectants (after the appropriate time has passed). During the study, a multi-method diagnostic approach was used for accurate diagnosis of Microsporia. The use of a multi-method approach (microscopy, obtaining pure culture of Microsporum spp. and Wood's lamp examination) in the diagnosis of microsporia was implemented. The main goal of our research was to correctly diagnose dogs and cats infected with Microsporia and to study the dynamics of the effects of various treatments and antifungal drugs in the treatment of the disease, at the same time to achieve the correct organization of the prevention of the disease.
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Статья научная
Cranberry and medlar are common in the Guba, Gusar, and Sheki regions of Azerbaijan. A study was conducted to determine the habitats of wild growing forms and biomorphological features. Identification was carried out based on molecular markers. A comparative study of the biomorphological characteristics of genotypes, economic indicators, pomological analysis and assessment of similarity by quantitative indicators was carried out.
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Статья научная
An optimal variant of food used to provide the human organism with biologically active substances that is considered acceptable to every consumer is fruit and vegetable-based juice, which biological value is determined by the maximum retention of nutrients in the product during processing. As the research was related to the preparation of a pectin-rich beverage, the Palavkadu 268 variety of pumpkin, which is a melon fruit, and orange juice were used as the main components of the product. To this end, first of all, the obtained pumpkin puree was treated with enzymes, and then orange juice was added to the mass. Besides, the recipe of the product included sugar, milk powder, sourdough, and 2% liquid pectin. The finished product was made on the basis of this mixture. The effect of the types and concentrations of pectic substances on the probiotic properties of the prepared fruit and vegetable drinks was also studied. The amount of pectin in fruit juice should be taken into account when producing it because a high concentration of pectin increases the viscosity of the juice, and it becomes turbid. By regulating the amount of pectin, it is possible to increase the juice yield. The enzymes of microbial origin are the most widely used substances in the production of juice because they contribute to the expansion of the range of products and the achievement of high juice yield. As a result of our research, it can be concluded that a product with a better bifidogenic effect can be obtained when using 2% liquid pectin in the preparation of beverages.
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Study on heat transfer performance of non-integral capillary core sintered uniform plate
Статья научная
This paper mainly introduces the sintering process of the monolithic capillary wick and analyzes the influence of different copper powder particle size, filling rate, copper powder shape and heat source size on the heat transfer performance of the isothermal plate. The experimental results show that: (1) For the isothermal plate sintered with spherical copper powder, the capillary force of large particle size copper powder is small, but the flow resistance is also small, and the performance of the isothermal plate sintered with large particle size copper powder is better. (2) In the case of low filling rate, the isothermal plate is dried due to insufficient return fluid. In the case of high filling rate, on the one hand, the thickness of the liquid film at the evaporation end of the isothermal plate is large, resulting in additional thermal resistance. On the other hand, the thin film evaporation mode will be transformed into pool boiling mode, which will reduce the heat transfer performance. (3) Spherical copper powder sintered plate with regular shape has the best performance, while dendritic copper powder sintered plate has relatively high thermal resistance. (4) The heat source area has a great influence on the thermal resistance of the plate. Under the same heating power, the thermal resistance of the small area heat source is much higher than that of the large area heat source; The thermal resistance of sintered copper plate is lower than that of pure copper plate under two heat source areas.
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Study on the effect of diaphragm booster on the pulsed heat transfer of cooling system
Статья научная
This paper has developed a diesel engine cylinder liner and cooling water heat exchange enhancement device, including diesel engine cylinder liner, cylinder liner water cooler, hydraulic accumulator, check valve, diaphragm booster, centrifugal water pump, pulse valve and Conical tube. As well as the pulsating circulation system and booster system composed of equipment. The device heats the heat generated by the diesel engine cylinder liner in a pulsating circulation system through a cylinder circulator in a pulsating circulation system to exchange heat with the external low-temperature seawater. By controlling the opening and closing of the pulsating valve in the pulsating circulation system, fluid is generated in the pipe. Pulsing and hydraulically impacting the diaphragm booster connected near the pulsation valve pipeline, the fluid at the outlet of the diaphragm booster is subjected to hydraulic shock and circulates in a closed booster circuit connected to the diaphragm booster and passes through the cone during the flow...
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Studying Students' Models of Formation of Gender Culture in Higher Education Institutions
Статья научная
In this article, it is important to improve the pedagogical environment in higher education institutions, and to create a gender culture among students. For this, it is necessary to implement gender culture in the higher education system and develop effective mechanisms for its management. It is urgent to consider the problems of forming the gender culture of students and implement measures to shape it into a system of training future specialists. The changes taking place in modern society determine the rapidly developing culture and determine the need to improve the educational process using everything that develops advanced thinking, moral and behavioral models in students. Gender culture of students is characterized by the understanding of the concept of gender, the essence and importance of gender characteristics in the life of society, a positive personal attitude towards oneself and the society in general as a carrier of certain gender characteristics.
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Hydronephrosis refers to diseases of the urinary system, which are characterized by high prevalence. Moreover, this pathology of all obstructive uropathies, leading to a decrease in the function of the renal parenchyma, accounts for up to 15% of cases. Therefore, the search for various markers involved in the development and progression of kidney damage is particularly relevant, since in the literature there are very contradictory data. Our article presents the results of a survey of 40 patients with established and confirmed diagnosis of stage I hydronephrosis (according to the classification of N. A. Lopatkin), and 20 completely healthy people (control group). All patients initially and at the end of the study determined the levels of cytokines: IL-1a, IL-1b, IL-1ra and G-CSF. We found that patients with hydronephrosis had higher rates of pro-inflammatory components of the IL-1β system: IL-1β - 104.42 (75% CI [111.8-151.4]) pg/ml, which was significantly higher than in the control group 3.7 times...
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Studying the Effect of Fungicides in Field Conditions on Disease of Fruits of Tomatoes
Статья научная
Tomato is one of the most important food crops. In recent years, tomatoes have been found to be susceptible to various diseases that damage the crop. One of these diseases is black mold of tomato fruits (alternariosis). Leaves, stems and fruits of the plant are damaged. Dark brown or black lesions develop on tomato fruits. The resulting tissue damage is more common where the fruit is attached to the twig.
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Studying the condition of irrigated land in the Mil-Mughan economic region
Статья научная
The article examines the current reclamation state of irrigated lands in the Mil-Mughan economic region. There are favorable conditions for irrigation and growing heat-loving crops. However, the development of irrigated agriculture here is limited by soil salinity, which is widespread in the study area over quite large areas. Thick layers of soil and groundwater are susceptible to salinization. Conventionally, the territory is suitable for irrigation in hydrogeological and reclamation terms.
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