Refine Search

New Search

Results: 1,354

(searched for: doi:(10.21303/*))
Save to Scifeed
Page of 28
Articles per Page
by
Show export options
  Select all
Nashwin Davids, ,
EUREKA: Social and Humanities pp 24-37; doi:10.21303/2504-5571.2021.001718

Abstract:
Coloured people's entrepreneurial efforts in South Africa are mostly survivalist. Although most of the selected suburb's youth have high entrepreneurial intentions, most do not become successful entrepreneurs. We are hoping to understand why people think this. Indisputable are the inadequacy of entrepreneurial education and training, a heavily skewed distribution of resources, a lack of mentorship, minimal support from parents, and a cultural upbringing in opposition to entrepreneurship. This study's objective was to gain insight into the cultural and educational limitations on entrepreneurial development and the entrepreneurial intentions of the selected suburb's youth. This paper employed quantitative and qualitative research methodologies. The quantitative data was collected from 470 youths through a survey questionnaire. Ten personal interviews were conducted within the qualitative ambit and served to validate the quantitative tool's results. The quantitative data was analysed using SPSS software, and the qualitative data was analysed by identifying common themes in relation to the quantitative findings. The study revealed a low level of tertiary education, a family orientated culture and a high level of entrepreneurial intention. The findings further revealed that many parents do not run their businesses, which indicated that most of the youth do not stem from entrepreneurially oriented households. The researchers recommend that business incubators be established within the suburb and that schools within the community should partner with the private sector and governmental structures, such as the Department of Trade and Industry (DTI), The National Youth Development Agency (NYDA), and Small Enterprise Finance Agency (SEFA) in order to expose youth to the practical application of entrepreneurship.
Szira Zoltán, Bárdos Kinga Ilona, AlGhamdi Hani, Enkhjav Tumentsetseg, Erika Varga
EUREKA: Social and Humanities pp 17-23; doi:10.21303/2504-5571.2021.001760

Abstract:
2019 was Earth's second warmest year since 1850. In 2019 the global mean temperature was cooler than in 2016, but warmer than any other year explicitly measured. Consequently, 2016 is still the warmest year in historical observation history. Year-to-year rankings are likely to reflect natural fluctuations in the short term, but the overall pattern remains consistent with a long-term global warming trend. This would be predicted from global warming caused by greenhouse gases, temperature increase across the globe is broadly spread, impacting almost all areas of land and oceans. Climate change" and "global warming" are often used interchangeably but are of distinct significance. Global warming is the long-term heating of the Earth's climate system observed since the pre-industrial period as a result of human activities, mainly the combustion of fossil fuel, which raises the heat-trapping greenhouse gas levels in the Earth's air. The term is often used interchangeably with the term climate change, as the latter applies to warming caused both humanly and naturally, and the impact it has on our planet. This is most generally calculated as the average increase in global surface temperature on Earth. Carbon dioxide emission is one of the main reasons for global warming. Since the Industrial Revolution, human sources of carbon dioxide emissions have been growing. Human activities such as the burning of oil, coal and gas, as well as deforestation are the primary cause of the increased carbon dioxide concentrations in the atmosphere. In our research, let’s examine the relationship between the amount of carbon dioxide emissions and the GDP/capita in developed and developing countries.
Olha Chernenko, Iryna Vdovenko
EUREKA: Social and Humanities pp 3-10; doi:10.21303/2504-5571.2021.001731

Abstract:
Lending is a main instrument of bank institutions’ influence on the development of economy and its subjects. The aim of the paper is to analyze the condition of entrepreneurial subjects lending by the bank system, especially agrarian enterprises, and separation of main restraining factors of its development. During 2017-2020 there is observed an essential reduction of volumes of medium-term and long-term credits, given to entrepreneurial subjects. The use of short-term credits for less than 1 year, the most specific weight (80.5 %) of which is possessed by microentrepreneurial subjects with annual income less than 50 thousand euro, prevails. It has been established, that high cost of credit resources, absence of correspondent guarantee and insufficient competitiveness of most entrepreneurial subjects prevent the development of credit relations for all participants (borrowers, creditors and state). Agricultural economy that produces more than 12 % of GDP and provides more than 40 % of Ukrainian currency receipts, demonstrates positive financial results of activity, is really underfinanced at the expanse of bank credits. A share of credits, directed to the agrarian sector during last years, is essentially less than the contribution of the branch in the gross added value formation in the country. A bank credit policy, acceptable for all entrepreneurial subjects and directed on credit cost decrease and long-term lending increase, is necessary. Studies of the influence of arrangements in the AIC by reduction of credit prices on effective indices (pure profit of agrarian enterprises) has testified a close connection (R=0,9803), comparing with other factors, that is why the practice of using the preferential lending mechanism must be continued, but by stable, not continuously changing approaches and by direct state support of just small and medium entrepreneurial subjects, which are most limited in access to credit resources of bank institutions.
Shaka Yesufu
EUREKA: Social and Humanities pp 61-70; doi:10.21303/2504-5571.2021.001721

Abstract:
With the end of the apartheid regime in South Africa, new police service was needed to promote the transition to democracy. Community policing was introduced from the United Kingdom in the 1990s into South Africa as a channel to heal the wounds and injustices of the past. Over Twenty-five years down the road, community policing in South Africa has made little or no impact on the majority of South Africans who will openly admit that they do not attend their local community forums, because they simply do not trust the police because of its oppressive past. It is a widely held view by several South Africans that the Police Service simply cannot change overnight from being a very brutal force to become the protectors of citizen’s human rights. This research is a qualitative study; whereby an extensive literature review was carried, exploring the issues and concepts related to community policing. The findings are that community policing has achieved its desired results. All citizens must go back to the drawing board again to bring community policing back on track for the benefit of all citizens to whom the police serve and protect. The author argues that the bitterness and divisions of the past must put be put to one side and that all citizens must co-create a country, where all South Africans are proudly part of and allowed to make their contributions.
Mykola Kalashnik
EUREKA: Social and Humanities pp 38-43; doi:10.21303/2504-5571.2021.001755

Abstract:
The article is devoted to the problem of assessing the effectiveness of the formation of acmeological competence of future navigators in the process of their professional training. And taking into account the specifics of their professional activities, the main objects of pedagogical diagnostics of the formation of the level of acmeological competence of future navigators are: acme-awareness, acme-praxis, acme-quality, acme-ability, acme-properties, value orientations and motivation, activity of interaction with the external environment, the effectiveness of subject-cognitive activity. The key in pedagogical measurement is the definition of assessment criteria corresponding to the indicators of the named education. According to the main provisions of the theory of pedagogical measurement, the article highlights the criteria for the formation of the acmeological competence of future navigators with the corresponding indicators of their manifestation, the distribution of which is determined by: motivational, cognitive, praxeological and personal criteria, makes it possible to effectively evaluate the corresponding complexes of indicators of the state of formation of acmeological competence. In addition, in the course of the study, a three-level system of forming the acmeological competence of future navigators was propaned: low, medium and high. Where the highest level of formation of acmeological competence is characterized as – the level of actual "acme", which future navigators must achieve in their personal and professional development while studying in educational institutions.
Nadiia Benko
EUREKA: Social and Humanities pp 11-16; doi:10.21303/2504-5571.2021.001715

Abstract:
The article examines the essence of the reproduction of human capital process, reveals its main stages (phases) –formation, distribution, exchange and consumption. The specificity of each stage of reproduction of human capital is considered, which makes it possible to realize the need for purposeful investment in a person and study the problems of state regulation at each of the stages. The article also shows that the reproduction of human capital occurs at the individual, corporate and national levels. Based on the study of the literature, a classification of the types of reproduction of human capital has been developed. This allows investing in human capital in order to create high quality human capital for the country. The classification of the types of reproduction of human capital is considered according to such characteristics as: the scale of reproduction, the nature of labor resources, the direction of reproduction, the innovativeness of the reproduction process, the completeness of the reproduction process, stages (phases, stages) of the reproduction process and structural components. The expanded reproduction of human capital is disclosed in detail, on which the state regulation of the economy of the most developed countries of the world is focused. The article notes the importance of the reproduction of human capital in providing an innovative "breakthrough" in engineering, technology, organization of production and management. The influence of the process of reproduction of human capital on the development of the country's economy has been investigated. The necessity of enhancing the activities of the state to create conditions for the effective formation, distribution, exchange and use of human capital has been substantiated. The role of the state in the formation (accumulation) of human capital through public goods for a person and through the establishment of norms and rules created in society and contributing to the development of this society is presented.
Elda Maloku, Osman Jasarevic, Ahmet Maloku
EUREKA: Social and Humanities pp 52-60; doi:10.21303/2504-5571.2021.001649

Abstract:
This paper reviews the assistance of a psychologist expert in the justice bodies to protect minors in Kosovo. Research data on the study of normative acts (laws and international acts) regarding the role of the expert psychologist have been analyzed since from September 1999 until 2019. The purpose of this study is to assess the role of an expert psychologist, conforming to national and international legal norms in the protection of minors at the police, prosecution and court organs, where the analysis of these legal norms has been used over the years. In the case of looking at the protection of minors the expert psychologist is involved in all stages of criminal and civil proceedings before the competent authorities. The results show that the role of the psychologist expert in justice bodies in Kosovo is based on national and international law, but in this highly sensitive work Kosovo psychologist experts must have their own association to represent their requests as good as possible to the competent authorities and for the delegation of the name of the expert psychologist at the request of the judge. Moreover, it has been found that until now the determination of the expert psychologist hired has been made with the will of the judge. This paper contributes to existing scientific literature, especially in the fields of criminology, victimology and forensic psychology. Moreover, this paper is likely to contribute to the work of the Association of Psychological Experts, the Victims' Association and in the work of various minors’ protection associations
EUREKA: Social and Humanities pp 44-51; doi:10.21303/2504-5571.2021.001759

Abstract:
In accordance with the European parameters of professional training of the new formation of educators, it is mandatory to emphasize the problem of forming in the future teacher the basic competencies of modern human, including an ethnocultural one. The value of this format of professional training is the focus of competence-oriented content of education on the formation of life and worldview of the future teacher, as well as his/her professional self-development. Ethnopedagogical component of training of future bachelors of natural sciences is of particular importance in the implementation of the concept of specialized training in high school and is one of the indicators of professional readiness to implement the multicomponent component of the content of modern natural education. Ethnopedagogy as a component of modern pedagogical science is a powerful resource for the formation of general cultural competence of the future teacher, which reflects a certain level of his/her professional readiness for teaching in the context of interaction of natural and social environments, to emphasize semantic and ideological aspects, to highlight the dominance of new values.
Ludmila Pusik, Vlаdimir Pusik, Veronika Bondarenko, Ludmila Gaevaya, Nina Lyubymova, Galyna Sukhova, Nataliya Didukh, Galina Slobodianyk
Published: 1 April 2021
EUREKA: Life Sciences pp 65-72; doi:10.21303/2504-5695.2021.001756

Abstract:
Kitchen beetroots have a series of high-value parameters: good taste properties, healing-prophylactic importance, ability to long-term storage. There are many sorts of kitchen beetroot, different by root form. Most widespread are ones of the round and cylindrical forms. At the same time plants of kitchen beetroot at growing form roots of different masses. The aim of the study was to investigate the storage life of kitchen beetroot depending on form and root sizes. The conducted studies give a possibility to substantiate scientifically an influence of kitchen beetroots’ form and sizes on their storage life for determining its term. It has been established, that roots of the round form of the Kharkiv Bordo sort lost moisture more intensively at the expanse of breath and evaporation – 4.4–5.4 %. In the Vital sort with roots of the cylindrical form, mass natural losses were 4.1–5.1 %. At that more natural mass losses were in small roots with mass 150–300 g. Small roots were more inclined to sprouting at storage. Among sprouted roots, 1.6–1.8 % were small ones with mass 150–300 g. More percent of sprouted roots was for ones with mass 500–700 g as 2.3–2.5 %. At that less percent of sprouted roots was in the Vital sort of the cylindrical form. Small roots with mass 150–300 g were more damaged by rots at storage – 10.4–12.3 %. Among roots of middle sizes, 6.0–6.8 % were damaged by rots, among big ones – 4.5–4.7 %. It must be also noted, that cylindrical roots of the Vital sort were less damaged by rots at storage than round ones of the Kharkiv Bordo sort
Ievgen Ivanov, Valentyn Kozheshkurt, , Anatolii Goltvjansky, Victor Katrich, Vadim Sidorov, Taras Gromovoy
Published: 1 April 2021
EUREKA: Life Sciences pp 56-64; doi:10.21303/2504-5695.2021.001738

Abstract:
The protein composition in the diapason of molecular masses from 4800 to 9500 Dа has been studied in colostrum, taken from different cows, and manifested the expressed biological activity. For this aim, an influence of low-molecular components of colostrum on some physiological parameters (change of body mass and temperature) at intoxication of animals (Wistar rats) by blue stone has been studied. An influence of colostrum low-molecular components on parameters of the organism redox-system (content of hyperperoxides of lipids and activity of glutathione peroxidase) in the blood serum of animals has been studied. For determining integral characteristics of colostrum components, electric conductivity of skim colostrum and one of colostrum with low-molecular proteins (less than 10 000 Dа), taken from different cows, were used. The aim of this work is to study interconnections of an influence of colostrum low-molecular proteins on models of organism intoxication by cooper ions. It is demonstrated, that the colostrum composition includes 25–35 different proteins with a molecular mass from 4800 to 9500 Dа. The number and ratio between protein fractions depend on individual physiological-biochemical characteristics of producers. It has been revealed, that there is no direct dependence between the protein content in a measuring cell (2 mg/ml, 4 mg/ml and 10 mg/ml) with skim colostrum and electric conductivity change, and this dependence is different for skim colostrum, taken from different cows. Individual differences are manifested both at electric conductivity change and by the content of colostrum low-molecular proteins in a measuring cell. It is demonstrated, that colostrum low-molecular components can eliminate the toxic effect of blue stone on the organism, which mechanisms are connected with a balance shift in the system “prooxidants↔antioxidants” towards antioxidants. The electric conductivity of colostrum components may be used as an express-method for evaluating biologically active substances of colostrum
Roman Petrov, Oleksiy Pidlubniy
Published: 1 April 2021
EUREKA: Life Sciences pp 25-31; doi:10.21303/2504-5695.2021.001754

Abstract:
The aim of this study was to investigate a possibility to decrease a toxic influence of aflatoxin on the fish organism and veterinary-sanitary evaluation of fish, fed by a pure fodder, aflatoxin and ketoconazole+aflatoxin. Fish aflatoxicoses cause essential losses at fish growing using industrial production technologies. It is characterized by decreasing weight gains and increasing kill of commodity fish, worsening fodder conversion. Farmers often use fodders of own production, without conducting laboratory studies, and don’t know about aflatoxins. At the same time because of different reasons, first of all economic ones, they don’t use adsorbents for decreasing the negative influence of aflatoxins on the fish organism. Their use doesn’t guarantee 100 % fish resistance to micotoxicoses and correspondingly product safety for a consumer. Fish, received aflatoxins with food, is dangerous as a food product for humans and animals. Aflatoxins are very stable in the environment, so even thermal processing doesn’t exceed risk of aflatoxin contamination. The article presents a possibility of effective treatment of fish at aflatoxicosis. It is known, that aflatoxin beyond cells is not dangerous. Its activation takes place within a cell by the enzyme system cytochrome Р-450, forming an epoxide, in which result the aflatoxin inclusion complex with DNA forms in the kernel. The veterinary preparation “Ketoconazole” inhibits cytochrome enzymes Р-450, so aflatoxin activation within a cell doesn’t take place, epoxides don’t form, DNA cells are not injured, aflatoxicosis doesn’t develop in fish that has been proved experimentally. The veterinary-sanitary mark of fish, treated for aflatoxicosis, is satisfactory. The importance of this study is in fact that for today there is no developed effective method of fish aflatoxicosis treatment. An influence of aflatoxin on the crucian organism has not been studied experimentally
Inna Fedoruk, Oleg Bakhmat, Yuri Khmelianchyshyn, Olesia Gorodyska
Published: 1 April 2021
EUREKA: Life Sciences pp 16-24; doi:10.21303/2504-5695.2021.001747

Abstract:
The practical experience substantiates the need to treat soybean seeds with high-quality inoculants and VuksalKoMo 15 with the trace elements content of cobalt and molybdenum. The processes of inoculation of seeds in the form of rhizobial bacteria significantly improve the soy plants ability to fix atmospheric nitrogen in the early stages of development. We begin to observe the rhizobial formation on the corinium soybean system already at the stage of BBCH 12–13. This in turn will affect the yield and productivity of Rosin soybeans. One of the important aspects of soybean cultivation is providing not only macroelements, NPK, Ca, S, but also microelements. Carrying out experiments on the effect of seed inoculation on soybean yield, we combined an inoculant, VuksalKoMo preparation and Sdandak Top insecticidal fungicide preparation with a sowing period of up to 5–7 days in a tank mixture. One of the main requirements is the use of high-quality inoculants with a high content of viable nitrogen-fixing bacteria for processing soybean seeds. This, in turn, will ensure high yields of soybeans with optimal costs and the fastest return on investment, especially in today's conditions. The research results are aimed at solving urgent problems in the technology of growing leguminous crops, namely: developing a version of the technology for growing soybeans for the selection of varieties, adapted to a given climatic zone, the use of inoculants and micronutrients in the conditions of climate change
Sunita Singh, Prachi Lad
Published: 1 April 2021
EUREKA: Life Sciences pp 41-55; doi:10.21303/2504-5695.2021.001753

Abstract:
The contamination of squash by B. cereus, an enterotoxin producer, was found to range between 7.5×104 and 1.8×104 CFU/g in orange squash (during storage), that is hazardous. Orange squash is widely produced and consumed in India, but has a low rating of 3 on the scale of 10 (on feedback), mostly due to high sugars, not preferred these days. It can be preserved for >9 months due to added sugars and preservatives. During processing squash, if juice is not quickly cooled and/or squash is kept for long at temperatures <48 °C after processing, it can be a source of food poisoning. Reason, a large number of toxins can be produced by B. cereus. B. cereus strains, isolated from squash, produce heat stable toxin. Vacuolar assay confirmed them as emetic toxins, produced in squash. The toxin behaved like an ionophore in assay using mitochondria, extracted from liver cells of chicken with potassium ions in buffer. The toxicity of toxin by assay was 3200 IU/ng (BC IV strain) and 800 IU/ng (BC X strain). By the vacuolar expansions of mitochondria in assay, toxins of B. cereus demonstrated a toxic effect, in the range of 20.93 to 60.94 % by BC IV toxin and 43.28 to 45.02 % by BC X toxin, on the 3rd day growth of B. cereus in squash and toxin extraction for assay. It was also possible to produce antibodies against the B. cereus whole cell and toxin of BC IV, as an attempt to detect B. cereus contaminations in foods, by Ouchterlony’s immune-diffusion test
Ruslana Stavetska, Yurii Dynko
Published: 1 April 2021
EUREKA: Life Sciences pp 9-15; doi:10.21303/2504-5695.2021.001696

Abstract:
This study focuses on research of economically important traits of Ukrainian black-and-white dairy cows with different types of body constitution. The aim of the study was to differentiate dairy cows into constitution types and to identify the best types in terms of growth, exterior, milk productivity and reproductive capacity. The cows were differentiated into low-, mid- and high-capacity types of body constitution. Depending on their type the features of growth, exterior, milk productivity and reproduction capacity of primiparous have been studied. It has been established, that the intensity of growth of heifers from birth to 18 months depended on the type of their body constitution. Higher live weight, absolute and average daily gains were characteristic of heifers with low-capacity body constitution. Their live weight at the age of 18 months on average was 388.5 kg, it was on 30.9 kg and 60.3 kg (Р < 0.01) more than live weight of mid- and high-capacity heifers. The advantages of low-capacity heifers in average daily gain during the growing period were 60 g and 117 g, respectively. The results of the exterior evaluation have shown that primiparous with the high-capacity type of body constitution had greater size and larger measurements primarily of the chest and barrel (Р < 0.05–0.001).The higher values of linear evaluation were also observed in cows with the high-capacity type, which were characterized by well-developed chest, wide rump, desired rear view of rear legs, firm udder attachment and strong central ligament. The power of influence of the type of body constitution on linear type traits ranged from 0.5 % (rear teat placement) to 46.2 % (chest width). Higher milk productivity was a characteristic of mid-capacity cows (an advantage of 305-d milk yield – 340–662 kg, milk fat yield – 9.0–21.0 kg, milk protein yield – 9.8–19.8 kg).The best results of reproduction capacity have been observed in cows with the high-capacity type of body constitution (calving percentage – 87.5 %)
Mykola Bakhmat, Oleksandr Chynchyk, Kateryna Nebaba
Published: 1 April 2021
EUREKA: Life Sciences pp 3-8; doi:10.21303/2504-5695.2021.001751

Abstract:
In the conditions of the western Forest-steppe, leguminous crops, including sowing peas, are the main and most important source of vegetable protein, which solve the biological and ecological problems of modern agriculture in Ukraine. The article presents the main research results on the study of the effect of mineral fertilizers and growth regulators on the formation of the sowing peas productivity in the conditions of the western Forest-steppe. The field trifactor experiment was laid in the ten-field crop rotation in Podillia Research Center of State Agrarian and Engineering University in Podilya, during 2016–2018. The field experiment was laid down in the research ten-digit crop rotation. In microstages VVSN 55-65 (budding – flowering) crops were sprayed with growth regulators PlantaPeg, Еmistim С and Vympel. The studies carried out showed that the individual productivity of plants of the Chekbek variety was the best of all the varieties that were studied. It was found, that high indices of the mass of 1000 seeds were in the variants, where mineral fertilizers were used at a dose of N30P30K45 with the plant growth regulator Vympel. According to this fertilizer composition, the mass indices of 1000 seeds for peas of the Chekbek variety were 266.4 g, and for the Hotivskyi and Fargus varieties – 260.6 g and 238.4 g, respectively. The grain yield of peas is an integrated indicator of the action of all life factors on the plant organism during its growth and development. To a large extent, it depends on the biological characteristics of the variety, the supply of moisture and nutrients to the plant, technological methods of cultivation, as well as natural and climatic conditions. In our studies, the crops, fed with mineral fertilizers and growth regulators, were significantly less exposed to adverse factors, and the studied technology elements had a positive effect on the productivity of pea grain. The maximum biological yield was for the application of mineral fertilizers in doses of N30P30K45 and the plant growth regulator Vympel. For the varieties of Hotivskyi peas, these indicators were 3.79 t/ha, Chekbek 4.32 t/ha, and Fargus 3.30 t/ha
Lavdi Hasani
Published: 1 April 2021
EUREKA: Life Sciences pp 32-40; doi:10.21303/2504-5695.2021.001752

Abstract:
In this paper, one of the most specific groups of plant entomologists, that of the U/Order Coccoinea Class Insecta is taken into analysis. Below it is seen important to identify the problems of infections of a variety of ornamental plants, found in the Southern Region of Albania, precisely by this group of pests. The role of the quality of the natural environment in our health has recently taken tremendous priority in the context of the contamination of all forms in the wild nature and especially those in the air. Precisely, to increase the quality of our life, the establishment of major parks with a truly significant green space per unit of population, is one of the current main objectives of each country. In these conditions, those environments are pretty rich in a variety of plants that, in addition to the functional values of environmental creativity, also have many aesthetic values with relaxing power and positive effects on our physical and mental health This type of plants is represented not only by those that are cultivated directly in the nature, but also by those that are planted and cultivated in greenhouses, which from time to time we take them out to realize the required decorations and compositions, asked to cover the needs of the parks. The healthier these components of this environment are, the more effective is their role on our personal health. For this reason it is equally important to recognize the dangers that threaten this vegetation by disabling its main function, for which we, as citizens, are interested, due to the need of our health, to have it in the highest efficiency. On this basis arose the idea of a comprehensive study on the above group of insects, which in a form or another constitute some of its main pests. These insects, as a specific group of pests that feed on plant lymph, not only dry out the plant, but also transmit to it a series of viral diseases, leading the plant to complete degradation. Most of them spend the winter (one of the most delicate periods for their survival) as parasites on them. We show below, which of these entomophytes is found in this group of plants in the region in question. It is also shown, which of the analyzed plant species emerges as the most frequented by this group of pests. We also identify the prevalence of this pollution in both variety and percentage. On the basis of the analysis, the question is also what is the distribution of plant species encountered, at different altitudes above the sea level? The paper contains, figuratively, a series of morpho-defining characteristics of the representatives, mentioned in this paper. As will be seen in the following material, the truth is that this specific group of ornamental plants, part of the relaxing parks around the world, in our country turns out to be contaminated by a large number of these parasites. This shows that in order to carry out quality work in this direction, we must not leave without considering the role of these pests in this process. Thus, we will be able to control the quality and function of our recreational environments in the role, for which we realize them. For this reason, detailed data are given below. We have identified these parasites in about 15 (fifteen) species of these ornamental plants, taking into account that parks in our country are not valued for the size of the area, as in an inferior and small country. In this material we have identified the number and dynamics of parasites according to each plant and also according to their distribution in areas with different altitudes above the sea level. We also give a comparative report on the frequency of vulnerability of the various plants by representatives of these pests. Summarized in a table, we have given for each pest the plant variety that it frequents, noting, in which plant organ this parasite was most commonly found during our research. As it is a group with annual activity on the plants, we have data for each month that we have met them on this vegetation and for each plant organ, where they were met (in leaves, on stalks or even the fruit itself). Regarding the degree of the damage that they cause to the plants, given the many harmful valences they show, not all belong to the category of the very dangerous pests. Some enter the minor pests that are mostly caused by overlapping other diseases, some others into the normal pests and a more specific group enters the category of very powerful pests, the risk of which is maximized with other additional effects. These and other information are given in table Number 1 (one), with the required symbolism. Since this group of plants is the environmental generator, where we live and work, the work in question takes on practical importance and value
Nikolay Shcherbina, Natalia Shelest
Published: 31 March 2021
EUREKA: Health Sciences pp 3-8; doi:10.21303/2504-5679.2021.001683

Abstract:
Underlying biochemical factors that contribute towards the preparedness for labour and ripening of the cervix remain largely unknown. We aimed to characterize metabolic and hormonal determinants that constitute the preparedness for labour in women. The aim of the research was to study the content of relaxin and amino acids involved in its formation in primiparous pregnant women with various degrees of birth preparedness. Materials and methods: Prospective study has been conducted on 115 primiparous women at 38-40 weeks of gestation. Biochemical methods were used to analyse relaxin and amino acid levels in pregnant women with varying degree of birth preparedness. Results: the obtained data from the study indicate importance role of relaxin in the underlying pathogenesis in women with variable degree of preparedness for labour. The results allow to use the levels of relaxin serum as a predictor of the state of the birth canal. Furthermore, the amino acids are known to participate in various critical metabolic processes and play an important role is orchestrating many essential pathways in the body. We present the analysis of amino acids involved in the formation of relaxin in the serum of pregnant women. Our analysis has shown that amino acid imbalance leads to disruption of energy metabolism and blood flow rate, resulting in metabolic, structural and functional changes in the cervix at the onset of labour. Conclusion: considering the mechanisms of the possible influence of relaxin and amino acids on the cervical ripening, we concluded that correcting amino acid imbalance and normalising relaxin levels should be included in preinduction of labour therapeutic regimen. This would be an important step in improving the perinatal outcomes
Olga Yasynovska
Published: 31 March 2021
EUREKA: Health Sciences pp 111-118; doi:10.21303/2504-5679.2021.001692

Abstract:
The aim of the research. To compare the ovicidal efficiency of insectoacaricides of different composition and manufacturers on flea eggs (Ctenocephalides spp.) for treatemnt of the premises where animals live. Materials and methods of the research. The study was conducted on the basis of the clinic of veterinary medicine "Vetservice" Sumy, laboratory "Veterinary Pharmacy" and "Innovative technologies and safety and quality of livestock products" of Sumy National Agrarian University. The ovicidal effect of insectoacaricides on flea eggs of Ctenocephalides spp. was studied. Ctenocephalides spp. eggs were selected from the pet bedding on which the animal spended most of its time, namely the cats. The studied material was selected with a cosmetic brush. Ctenocephalides spp. eggs were placed into a Petri dish of 10 eggs per each dish. The test material was introduced with a dental probe. There were 4 test dishes, which were treated with insectoacaricides (each test dish was treated with a separate drug) and 1 control dish with no treatment. Microscopy was conducted under a light microscope with magnification X8 of each egg, with following treatment of each egg with insectoacaricides. Monitoring was conducted in 24, 48 and 72 hours after treatment. Results. Research has shown that drugs which demonstrated 100 % ovicidal effectiveness were Sentry Home (pyriproxyfen – 0.02 %, permethrin – 0.2 %, n-Octyl Bicyclohepten – 1.0 %) in 24 hours and Neostomazan (CEVA)(transmix – 5.0 g, tetramethrin – 0.5 g) in 72 hours. Conclusions. Insectoacaricide drug Sentry Home (pyriproxyfen – 0.02 %, permethrin – 0.2 %, n-Octyl Bicyclohepten – 1.0 %), used for the treatment of the premises where the animals live, showed the most pronounced ovicidal effect in 24 hours.
Svitlana Chernetska, Natalia Beley, Mariana Demchuk
Published: 31 March 2021
EUREKA: Health Sciences pp 73-81; doi:10.21303/2504-5679.2021.001664

Abstract:
The aim. The aim of the research was to study the influence of excipients amount on the technological parameters of the compression mixture and tablets based on dry extract of Origanum vulgare L. herb using the method of random balance. Materials and methods. Objects of the study – Origanum vulgare L. herb dry extract, 8 excipients that have been studied at two quantitative levels. The tablets were prepared by direct compression method. The formulations were designed according to the method of random balance. The technological parameters of the compression mixture and tablets based on Origanum vulgare L. herb dry extract have been studied as a function of quantitative factors: silicon, magnesium carbonate basic, dioxide magnesium aluminometasilicate (Neusilin S1®), isomalt (GalenIQ™720), F-melt® Type C (co-spray dried excipients), sucralose, berry flavor and citric acid. Results and discussion. The increase in the amount of Neusilin S1®, GalenIQ™720 and F-melt®, and the decrease in the amount of magnesium carbonate basic and silicon dioxide improved the flowability expressed by the Hausner ratio. Results of bulk density and tapped density of the compression mixture depended on the quantities of GalenIQ™720 and F-melt®. All formulations of the prepared tablets had the rapid disintegration and ranging from 6 to 15 minutes. Resistance for crushing and friability tablets’ were improved with a decrease in the amount of silicon dioxide and increase in the amount of Neusilin S1®, F-melt® and sucralose. Higher resistance to moisture of tablets based on Origanum vulgare L. dry extract was obtained by using Neusilin S1®, F-melt® and sucralose on the upper levels. Conclusions. The tablets based on Origanum vulgare L. herb dry extract were successfully manufactured by direct compression method. The random balance method enabled us to identify the most significant quantitative factors to optimize their composition in the tablets based on the dry extract of Origanum vulgare L. herb.
Karyna Tolmachova, , , Svetlana Grashchenkova,
Published: 31 March 2021
EUREKA: Health Sciences pp 64-72; doi:10.21303/2504-5679.2021.001712

Abstract:
The aim of the experiment was to study the anti-inflammatory effect of the novogalene agent Ledum 50, obtained from Ledum palustre shoots, in a rat model of acute bronchitis. Materials and methods. Acute bronchitis was initiated by endotracheal administration of 1 % formalin solution. The effectiveness of Ledum 50 was investigated by the number of leukocytes and cell composition in isotonic BAL solution after 24 hours and after 8 days of the experiment. Serum levels of C-reactive protein (CRP), alkaline phosphatase (AP) and CIC were determined. Histological examination of the lungs was carried out. Results. Endotracheal injection of formalin caused irritation of the trachea and bronchi, excessive formation of bronchial secretions (heavy breathing, wheezing) in all the studied groups. The lethality of animals in the OB group on the 3rd day of the experiment (1 rat) was recorded, in the studied groups there was no death. The level of leukocytes in BAL after 24 hours exceeded the index of the IC group by 9.63 times (p<0.05), after 8 days – by 3.0 times (p<0.05). In the cellular composition of BAL, there was a significant increase in granulocytes (rod- ​​and segmented neutrophils, eosinophils), monocytes and a decrease in the lymphocyte population against the IC group. Such changes were verified in the long term (8 days of the experiment), which indicates an inflammatory process. In the group of rats that received Ledum 50, leukocytes in the BAL significantly decreased, the number of monocytes and lymphocytes in the BAL decreased, the amount of CIC in the blood serum, CRP and AP normalized. In terms of effectiveness, Ledum 50 significantly exceeded the BAL values ​​of the reference drug. The effectiveness of experimental therapy for acute bronchitis was also verified by studying the histostructure of the airways and the respiratory part of the lungs. Conclusions. Studies confirm the favorable course of acute bronchitis with Ledum 50 monotherapy. This fact is confirmed by the results of normalization of hematological parameters, leukocytes and BAL cell composition after 7 days of treatment with the claimed agent. This is the basis for further preclinical and clinical studies with the aim of creating an oral drug for the treatment of acute bronchitis.
Volodymyr Mamchych, Sergiy Vereshchagin, Volodymyr Maksymchuk, Dmytro Maksymchuk
Published: 31 March 2021
EUREKA: Health Sciences pp 37-43; doi:10.21303/2504-5679.2021.001730

Abstract:
The aim. To evaluate the effectiveness of X-ray interventions in arosive bleeding in patients with complicated duodenal ulcer. Materials and methods. X-ray endovascular interventions were used in 8 patients who developed arosive bleeding as a complication of duodenal ulcer. All patients with signs of gastrointestinal bleeding were examined according to clinical protocols. Hemodynamically stable patients underwent X-ray endovascular interventions. Results and discussion. In the near future, bleeding stopped in all 8 (100 %, OR–0.04 [0.005–0.29], p=0.03) patients. On day 2, two patients who underwent embolization of their own hepatic artery had a recurrence of bleeding (0.56 [0.065–4.76], p=0.29). Repeated angiography and embolization attempts were ineffective, and both patients died. In patients who underwent gastroduodenal and pancreatouodenal artery embolization, bleeding did not resume. Thus, we obtained good results as 6 out of 8 patients recovered (75 %), despite the severity of their condition and a disappointing prognosis (OR–9.0 [1.0–46.7], p <0.05). Conclusions. Adherence to the tactics mentioned above in the treatment of bleeding in duodenal ulcer was highly effective, especially in superselective embolization with the detection of bleeding gel. If the presence of arosive bleeding is confirmed, emergency surgical treatment with suturing of the damaged vessel is shown in hemodynamically unstable patients, and endovascular intervention is possible in hemodynamically stable patients. Further studies are needed to determine the criteria for a high risk of arosive bleeding developing in patients with complicated duodenal ulcer as well as to prevent its occurrence through the use of X-ray endovascular interventions.
Published: 31 March 2021
EUREKA: Health Sciences pp 24-30; doi:10.21303/2504-5679.2021.001648

Abstract:
The use of hemostatic tourniquet is a proved means of primary care. However, systemic disorders, as well as ultrastructural, in the area of compression can significantly worsen the condition of the injured organism. The aim. Estimation of catalase level in rats’ liver on the background of modifications of ischemic-reperfusion syndrome to know the severest pathogenic combination for organism. Materials and methods. 260 white adult male rats were divided into 5 groups: control (KG), EG1 – simulation of isolated ischemia-reperfusion syndrome (IRS) of the limb, EG2 – simulation of isolated volumetric blood loss, EG3 – combination of IRS of the limb with blood loss, EG4 – simulation of isolated mechanical injury of the thigh, EG5 – combination of IRS of the limb and mechanical injury. The variability of catalase level in liver was analyzed. Results. It was found that each of the experimental interventions has led to changes of catalase activity in the liver. The most expressed pathological expressions were observed on the 3rd after interventions, when the studied index in EG3 was lower than in EG1 and EG2 in 6,2 times and by 33,1 %. On the 7th day catalase activity in EG3 was in 9,4 times and by 44,5 % times lower than in EG1 and in EG2 data concordantly. The combination of limb ischemia-reperfusion with blood loss in EG3 led to exhausting of liver antioxydant enzyme catalase in the most critical posttraumatic period (day 3). The same, but less significant effect was registered in the group of combination of mechanical trauma with ischemia-reperfusion in EG5. This proved the role of the tourniquet as a factor that complicated the course of traumatic disease due to ischemic reperfusion. Conclusions. In this experiment, founded risk factors of combination of ischemia-reperfusion with heavy blood loss emphasized the importance and particular attention on such widespread method of bleeding tratment, as the imposition of a tourniquet, as in our experiment it triggered risk factors of ischemia-reperfusion. It was shown katalase activity depression respectively to the periods of increasing of lipid peroxydation. There was peculiarity, that on the base of isolated IRS catalase activity was increased in 2,5 times comparely to control group, whereas the hardest depression of it was found on the background of IRS, combined with blood loss – catalase activity was lower, comparely to KG – in 2,5 times. The importance of understanding the suppression of hepatocytes’ antyoxydants is great, as it might help in prevention the development of liver failure or hepatorenal syndrome on the background of limb ischemia-reperfusion.
Iryna Kazakova, Viacheslav Lebedynets, , Viktoriya Kazakova
Published: 31 March 2021
EUREKA: Health Sciences pp 44-55; doi:10.21303/2504-5679.2021.001700

Abstract:
The perfumery and cosmetic industry of Ukraine is distinguished by its dynamic development and makes a significant contribution to the country's economy. Several types of economic activities are involved in its functioning, including the development, research, production and sale of perfumery and cosmetic products, as well as the provision of cosmetic services to the population. The economic activity of each sector in the chain of creation, production and sale of cosmetic products / services determines both their individual success and the efficiency of the entire system as a whole. In this regard, the systematization and analysis of the indicators of economic activity of enterprises of each type of activity of the national cosmetic industry is an urgent task, the solution of which will reasonably determine the prospects for both the further development of this industry and the export potential of the Ukrainian economy as a whole. The aim of this work was to conduct a comprehensive study of the dynamics of the main indicators of Ukrainian enterprises of perfumery, cosmetic and related industries economic activity for the period 2010–2019 and determination of their development trends. The available data of the State Statistics Service of Ukraine, the Patent Office of Ukraine, as well as a database of scientific and professional publications publications were used as materials and methods. Retrospective, logical, research methods, as well as the method of content analysis were used. The results of a comparative analysis of the main indicators of the economic activity of business entities in the studied industry made it possible to establish trends in the development of this sector of the economy and substantiate the patterns observed at the present stage. Conclusions. The results of the study indicate that the production potential of the perfumery and cosmetic industry in Ukraine is promising, as well as significant opportunities for further development of the trade in these products and the provision of cosmetic services to the population.
Hryhorii Zon, Lyudmyla Ivanovska, Illia Zon, Tion Matthew Terzungwe
Published: 31 March 2021
EUREKA: Health Sciences pp 102-110; doi:10.21303/2504-5679.2021.001690

Abstract:
Aim of the study: to examine the pathological changes in dogs that died due to confirmed intestinal yersiniosis and parvoviral enteritis and establish trends for characteristic organ lesions for both diseases in comparison, then evaluate our findings with the existing published material of sufficient evidence quality regarding differential postmortem diagnosis of spontaneous intestinal yersiniosis and parvoviral enteritis in dogs. Materials and methods: the study examined the cases of 25 dogs from 2 month to 1.3 y.o. of various breed, gender that died due to either confirmed Canine parvoviral enteritis (CPV) infection or intestinal yersiniosis and subsequently divided into two groups based on their diagnosis. The definitive diagnosis has been confirmed by performing rapid ELISA diagnostics (SensPERT®, VetAll Laboratories, Kyunggi-Do, Korea) for CPV and serological tests for Y. enterocolitica sera AT were performed using yersiniosis antigens from the "Component set for serological diagnosis of animal yersiniosis" (Kharkiv, NSC IEKVM, TS 46.15.091-95) in accordance with the "Interim guidelines for the use of a set of components for serological diagnostics". A dilution of 1: 200 has been considered as the diagnostic titer. After the definitive diagnosis had been confirmed, the animals were divided into two groups, depending on diagnosis: CPV (n=14) or IY (n=11). The autopsies of twenty randomly (10 from each group) selected dog corpses have been conducted utilizing standard methodology. Results: according to the results of autopsy of dogs afflicted by CPV, the main pathological changes were found in the small intestine – catarrhal-desquamative inflammation (in 100 % of cases), serous-hemorrhagic mesenteric lymphadenitis (90 %) large intestine (70 %) in the stomach (60 %), in the liver (50 %), in other organs – less than 40 percent of cases and most notably caused lung damage (edema and local atelectasis) in 90 % of the animals in the study, which was not the case for intestinal yersiniosis with only 20 % incidence of lung damage. Conclusions: Spontaneous intestinal yersiniosis in dogs was pathologically manifested by pronounced catarrhal-desquamative processes mainly in the stomach and small intestine (70, 100 and 80 % of cases, respectively), inflammation of the mesenteric lymph nodes (90 %) and large intestine (80 %), dystrophy and congestive processes in the liver (80 %). Low incidence and type of lung damage (congestive hyperemia in 20 % of reviewed cases compared to 90 % of local atelectasis add edema in CPV group) was noteworthy. Cases of 25 animals that died due to either confirmed CPV or Y. enterocolitica infection were analyzed, and 20 animal corpses were autopsied during study. Dogs that died from intestinal yersiniosis had significantly higher frequency of pathological findings in kidney (200 %) and liver (60 %) in particular. Changes in stomach and large intestine were also more frequent. At the same time, we observed a lower frequency of pathological changes in spleen (33 % lower), heart (25 % lower) and the lowest frequency was in lungs (77 % lower) presented by edema and local atelectasis in animals afflicted by yersiniosis compared to CPV. Incidence and manifestation of pathological findings was mesenteric lymph nodes and abdominal cavity were similar, and could not be considered during posthumous diagnostics.
Kostyantyn Balashov, Olesya Hulchiy, Gennady Slabkiy
Published: 31 March 2021
EUREKA: Health Sciences pp 16-23; doi:10.21303/2504-5679.2021.001709

Abstract:
The aim. To study the factors of doctors’ assessment of their lifestyle as a healthy one, as well as their readiness to take practical measures for health maintenance. Materials and methods. 167 doctors representing all macro regions of Ukraine were interviewed: the levels of awareness of myths about NCDs, locus of control and readiness to take practical measures aimed at health maintenance were determined. The main acting forces were determined by factor analysis. Cluster analysis was performed on the basis of the obtained factors using hierarchical (Ward’s method) and non-hierarchical (k-means method) clustering methods. Results. The following concepts were assessed: Myths about NCDs (11 factors, 3 elements, 4 clusters), locus of control (12 factors, 3 elements, 4 clusters), factors influencing health behavior (12 factors, 3 elements, 4 clusters), readiness to take practical measures aimed at health maintenance (22 factors, 4 elements, 2 clusters). Factors that positively and negatively affect a person's assessment of the lifestyle as a healthy one were identified. Conclusions. The selected subgroups (clusters) of respondents are a simple and effective method of building a better understanding of the target audience of campaigns to promote healthy lifestyles, which after proper clarification, verification and development of a reliable measurement tool can be used to create targeted messages for each population group after a proper clarification and verification
Ievgenii Gladukh, Maiia Podorozhna
Published: 31 March 2021
EUREKA: Health Sciences pp 82-89; doi:10.21303/2504-5679.2021.001732

Abstract:
Rheological parameters are an important characteristic of semisolid dosage forms. Structural and mechanical characteristics have a noticeable effect on the processes of release and absorption of drugs from ointments, as well as on their consumer properties: spreadability, adhesion, the ability to squeeze out of the tubes. The aim: to study the rheological parameters of aqueous solutions of sodium alginate in various concentrations to create medicinal hydrogel compositions. Materials and methods: sodium alginate (Shandong Topsea Seaweed Industrial Co., Ltd., China) was used as a gelling agent. The physicochemical properties of the samples were studied according to generally accepted methods of the State Pharmacopoeia of Ukraine. Rheological studies of experimental samples were carried out using a rotational viscometer «Rheolab QC», by Anton Paar (Austria) with coaxial cylinders C-CC27/SS at a temperature 20–25 °С. Results and discussion: the rheological profiles of sodium alginate gels have a non-Newtonian type of flow, which makes it possible to characterize them as systems with plastic-viscous properties. Gels with a sodium alginate concentration of 1.5–2 % have the best indicators of yield stress, hysteresis loop area, mechanical stability and dynamic flow coefficients. This indicates a low degree of destruction of the structural grid in the process of mechanical action and the presence of thixotropic bonds. Conclusions: sodium alginate gel base at 0.5 % and 1 % concentration is less stable under stress compared to sodium alginate bases at 1.5 % and 2 % concentration. The gel base of sodium alginate at a concentration of 2 % has the optimal mechanical stability value.
Zhanna Klishchova,
Published: 31 March 2021
EUREKA: Health Sciences pp 97-101; doi:10.21303/2504-5679.2021.001688

Abstract:
Salmonellosis is an acute intestinal infectious disease that belongs to the group of zoonoses that cause acute toxic infections in humans through the consumption of products of animal or plant origin contaminated with bacteria of the genus Salmonella spp. Salmonellosis is registered in all countries of the world, and our state is no exception. The aim of the research. Monitor salmonellosis pathogens in Ukrainian poultry farms and, on the basis of the obtained data, establish the relationship between avian and human diseases for salmonellosis. Materials and methods. The research was conducted in poultry farms in the North-Eastern region of Ukraine. Test systems from R-biopharm-Compact Dry SL and RIDA®STAMP SL were used for rapid diagnosis of bacterial microflora. To establish the salmonella serotype, the Spectate® salmonella test system was used, which is based on the use of latex strips coated with special antibodies to the corresponding serogroups of Salmonella A, B, C, D. Microbiological examination was performed washing from the walls, floor, eggshell, Brooder's cabinets and pathogens heart, liver, gallbladder of the dead bird. The relationship between isolated salmonella serovars from poultry was compared with salmonella isolated from humans according to the reporting form No. 40 “Zdorov”. Results. Various salmonella serovars were isolated from experimental farms of Ukraine, namely: Serovars such as S. Gallinarum–pullorum – 7.9 %, S. Enteritidis – 6.5 % were isolated from the meat and egg direction. From the meat direction, the following are: S. Tiphimurium – 12.5 %, S. Arizona – 6.0 %, S. Enteritidis – 3.5 %. From the breeding direction were also isolated from adult birds and hatching eggs in large quantities – S. Gallinarum–pullorum – 19.0 %, S. Tiphimurium – 17.8 %, S. Enteritidis – 10.1 %. The following species were separately isolated from the premises of the same farms in percentage terms: S. London – 1.7 %, S. Infantis – 1.5 % S. Bredeney – 1.4 %, S. Tsioque – 1.4 %, S Jawa – 1.2 %, S. Montevideo – 1.1 %, and 1 % each isolated S. Kentyki, S. Abony and S. Oxford. Pathogens of paratyphoid diseases were isolated from poultry and poultry products (S. Gallinarum–pullorum, S. Enteritidis, S. Tiphimurium) for the entire study period from 2016 to 2020 inclusive. Comparing the obtained data from state institutions of humane medicine, it should be noted that there was a tendency for the spread of salmonellosis among people associated with the consumption of poultry products. Conclusions. The obtained results indicate that salmonella infection is quite common among a number of poultry farms of different technological direction. In particular, bacteria of the genus Salmonella were isolated from meat, eggs and birds of different ages from the studied poultry houses in the North-Eastern region of Ukraine. As a result of monitoring of salmonellosis in Ukraine over the past five years, fluctuations in the incidence of salmonellosis among people ranged from a maximum of 74 % (2018) to a minimum of 30.1 % (2020), and for two years, there has been a reduction in cases due to the introduction of new international requirements and standards for product quality control at all stages of production of the Hazard Analysis and Critical Control Point (HACCP) system.
Dmytro Kisil, Tetiana Fotina,
Published: 31 March 2021
EUREKA: Health Sciences pp 90-96; doi:10.21303/2504-5679.2021.001711

Abstract:
The aim of the study was to determine the effectiveness of the drug "Cobazin" on the productivity of bee colonies during the increase in strength (increase in the number of young bees in the bee colony) in spring and autumn. Materials and methods. Control and experimental groups were formed to test "Cobazin" feed supplement. It was fed 5 times with an interval of 5 days. Bee colonies from the control group received a pure sugar solution (1:1) in the amount of 0.5 liters per bee colony, and the experimental group received a sugar solution of 0.5 liters per bee colony (1:1) with the addition of the drug "Cobazin" in the amount of 2.5 g. Indicators characterizing the development of bee colonies were determined by a measuring frame of 5x5 cm in size, for 12 days to cover the total number of eggs laid by the queen bee during feeding. Four measurements were performed during the study. The results of the control and experimental groups were compared and the significance of the differences between them was established. There was a comparison of the difference between groups of bees both fed pure sugar syrup in a ratio of 1:1 and syrup with the addition of the drug "Cobazin". Results. It is proved that during the feeding period the number of brood in bee colonies that received feed supplement "Cobazin" increased significantly by 76 % (71 % in the group that received only sugar solution without this drug). Live weight of queen bees in colonies that were stimulated with "Cobazin" was actually 2 % higher compared to the control group. It was found that at the end of the bee season, bee colonies fed in May with the feed supplement "Cobazin" had significantly higher values of strength, number of sealed brood and live queen bees compared to those who received pure sugar solution. The brood in the control group was 25 % lower than in the experimental group. Conclusions. For the first time it was proved that the use of feed supplement "Cobazin" in combination with sugar solution has a positive effect on the features that characterize the development of bee colonies (strength, number of sealed brood) and their health productivity. The positive impact is observed not only during feeding, but also in subsequent periods of colony development.
Nibras Habeeb Attrah, Ghassan H. Abdul-Majeed, Mahmood Zaki Abdullah
EUREKA: Physics and Engineering pp 11-18; doi:10.21303/2461-4262.2021.001734

Abstract:
The expansion of networks involved higher jump on the users utilizing the networks resources, which may require extra higher bandwidth. Due to the development of technology especially those folded under the Internet of Things (IoT), the new demand of higher data rate is been witnesses among the users. In order to feed the demand of users with high data rate, broadband networks are required where high data rate can be ensured for each user. Broadband networks can be established using optical network that carries the data through wide broadband. Areas such as rural and forests sides which are witnessing plenty of natural obstacles such as mountains, trees, seas, etc. are forming big challenge for propagating a cable (wire) or optical network. Due to the limitations of the wire network, World Interoperability for Microwave Access (WiMAX) technology has been introduced as substitution for the broadband network. Such kind of alternative can be deployed through any geographical area without concerning on the wire paths. WiMAX preserved large coverage area and hence it may not suffer from the signal hand-off as in the case of another wireless network. In this project, Chordal Ring network topology is implemented to enhance the performance of wireless broadband network. With different routing protocols such as Destination Sequenced Distance Vector Protocol (DSDV) and Ad hoc On Demand Distance Vector (AODV), the network performance was examined for various Chordal Ring degree (e.g. fourth degree and fifth degree). Performance metrics such as number of transmitted packets, number of received packers, delivered packet rate (PDR), total number of drop packers (DP) and average queuing delay (been measured). Finally, the obtained results had been shown that fifth-degree Chordal Ring network is outperforming through DSDV routing protocol
Agoes Soehardjono, Candra Aditya
EUREKA: Physics and Engineering pp 42-51; doi:10.21303/2461-4262.2021.001693

Abstract:
Cracks that occur in rigid pavements include longitudinal cracks, transverse cracks, and corner cracks. The relatively large crack width not only spoils the aesthetics of the concrete structural elements but can also lead to structural failure. This study aims to determine the crack width of a rigid pavement concrete slab located above the subgrade which is considered a beam on an elastic foundation, so that a minimum rigid pavement concrete slab thickness can be recommended. The specimen will be observed at various thicknesses to obtain the optimum thickness. The load used is a centralized monotonous load, which represents the load of the truck vehicle. The research limitation is using a test object in the form of a concrete plate measuring 2000x600 mm which is placed on the ground with CBR=6 %. The quality of reinforced concrete slabs is fc'=40 MPa and fy=440.31 MPa. The thickness of the concrete slab varies between 100 mm, 150 mm, and 200 mm. The slab placed on the ground is then given a central loading in the form of a centralized monotonic load. The loading range starts from a load of 2–180 kN with a load interval of 2 kN. The experimental results show that the rigid pavement slab has a bending failure so that the crack pattern that occurs begins with the first crack on the underside of the slab. The crack pattern in terms of slab thickness variation has a similar pattern. The initial crack width on the slab is 0.04 mm. The thicker the slab smaller the crack width at the same load. Based on the maximum allowable crack width=0.3 mm. For loads between (80–100) kN (Road Class I, II, and III), a minimum thickness of rigid pavement slabs (70–80) mm is recommended. For loads between (130–140) kN, the minimum thickness of the rigid pavement slab (105–115) mm is recommended
Liliia Frolova, , Alona Shpyh, Vadim Khoroshailo, Yana Antonenko
EUREKA: Physics and Engineering pp 99-107; doi:10.21303/2461-4262.2021.001694

Abstract:
In this work, the optimal combinations of Al – Si in cast iron for cast parts for machine-building purposes were determined with the aim of subsequent selection of rational modes of modification and alloying, and the possibility of their implementation under industrial smelting conditions was checked. The graphical dependence Si=f (Al) is obtained, which is a set of optimal combinations of the content of Al and Si in cast iron, providing the maximum ultimate tensile strength UTS≈245 ... 334 MPa. The technological audit of the results of serial industrial smelting included the analysis of actual indicators, the calculation of sample distribution functions (mathematical expectation and dispersion) of the Al and Si content in the alloy, as well as the UTS value. The correspondence of the indicators of the content of Al and Si and the value of σ to the optimal values was assessed by testing the statistical hypotheses: H: M(Al)=Alopt, M(Si)=Siopt, M(σв)=σвopt.On the basis of the obtained results of the assessment of statistical characteristics and verification of hypotheses, it was established that at the chosen significance level α=0.05, the technological process of smelting satisfies the requirements of optimality in terms of the Si content, but in terms of the Al content, the technological process does not meet the requirements of optimality. The proposed procedure for choosing the optimal combinations of Al and Si makes it possible to choose the amount of correcting additives depending on the actual indicators of the chemical composition during the smelting process. To do this, it is necessary to assess the closeness of the actual composition to the optimal curve Si=f(Al) and choose the one that most satisfies the criteria of rationality. The latter can be the cost of ferroalloys, through which Al and Si are introduced
Konstantin Kostov, Ivan Ivanov, Koycho Atanasov
EUREKA: Physics and Engineering pp 87-98; doi:10.21303/2461-4262.2021.001310

Abstract:
Pig farming is a sector of animal husbandry, the development of which is great attention. The pork market occupies a large share in the trade in animal products. In the conditions of they do competition more efforts are made to improve the quality and reduce the cost of production. To achieve this goal, work is being done in several areas – development and expansion of the gene pool, improvement of the living environment in the premises for animal husbandry, reduction of energy costs. Along with the development of feeding technologies, it is necessary to create a suitable microclimate in the premises, in which the animals to realize their productive potential, which in turn is directly related to the use of heating and cooling systems. The design of these systems for both existing and new buildings is carried out according to generally accepted methodologies, which in turn require time for calculation and use of specialized software. The methodologies for determining the loads for heating and cooling of livestock buildings, in accordance with the current legislation in the Republic of Bulgaria, are compared with a new method proposed in this publication. The possibility to consider a livestock building from the point of view of the theory of heat exchange allows the use of the basic differential equations describing the dynamic interaction of the building with the environment. This description would be complete and complex to implement. Therefore, the method of dimensional analysis is used, which is based on generalized indicators, when fulfilling certain criteria of similarity. The aim of the new methodology is to shorten the design time and allow the rapid sizing of heating and cooling systems in livestock buildings. In developing the new methodology, the task was the proposed new approach to summarize the interaction of all physical parameters affecting the heat exchange between the building and the surrounding air, allowing to take into account changes in external (air temperature, wind speed, solar radiation intensity) and internal factors (heat given off by farm animals, lighting, process equipment and processes) affecting the heat exchange between the building and the ambient air
Do Duc Trung, Nhu-Tung Nguyen, Duong Van Duc, Olga Krivenko, Peter Kulikov, Andrey Zaprivoda, Vitaliy Zaprivoda
EUREKA: Physics and Engineering pp 52-65; doi:10.21303/2461-4262.2020.001414

Abstract:
In this study, the multi-objective optimization problem of turning process was successfully solved by a Taguchi combination method and MOORA techniques. In external turning process of EN 10503 steel, surface grinding process, the orthogonal Taguchi L9 matrix was selected to design the experimental matrix with four input parameters namely insert nose radius, cutting velocity, feed rate, and depth of cut. The parameters that were chosen as the evaluation criteria of the machining process were the surface roughness (Ra), the cutting force amplitudes in X, Y, Z directions, and the material removal rate (MRR). Using Taguchi method and MOORA technique, the optimized results of the cutting parameters were determined to obtain the minimum values of surface roughness and cutting force amplitudes in X, Y, Z directions, and maximum value of MRR. These optimal values of insert nose radius, cutting velocity, feed rate, and cutting depth were 1.2 mm, 76.82 m/min, 0.194 mm/rev, and 0.15 mm, respectively. Corresponding to these optimal values of the input parameters, the surface roughness, cutting force amplitudes in X, Y, Z directions, and material removal rate were 0.675 µm, 124.969 N, 40.545 N, 164.206 N, and 38.130 mm3/s, respectively. The proposed method in this study can be applied to improve the quality and effectiveness of turning processes by improving the surface quality, reducing the cutting force amplitudes, and increasing the material removal rate. Finally, the research direction was also proposed in this study
Lev Raskin, Oksana Sira, Yurii Parfeniuk,
EUREKA: Physics and Engineering pp 108-123; doi:10.21303/2461-4262.2021.001691

Abstract:
The problem of transport management in a distributed logistics system "suppliers – consumers" is considered. Under the assumption of a random nature of transportation costs, an exact algorithm for solving this problem by a probabilistic criterion has been developed. This algorithm is implemented by an iterative procedure for sequential improvement of the transportation plan. The rate of convergence of a computational procedure to an exact solution depends significantly on the dimension of the problem and is unacceptably low in real problems. In this regard, an alternative method is proposed, based on reducing the original problem to solving a nontrivial problem of fractional-nonlinear programming. A method for solving this problem has been developed and substantiated. The corresponding computational algorithm reduces the fractional-nonlinear model to the quadratic one. The resulting problem is solved by known methods. Further, the original problem is supplemented by considering a situation that is important for practice, when in the conditions of a small sample of initial data there is no possibility of obtaining adequate analytical descriptions for the distribution densities of the random costs of transportation. In this case, the available volume of statistical material is sufficient only to estimate the first two moments of unknown distribution densities. For this marginal case, a minimax method for finding the transportation plan is proposed. The first step is to solve the problem of determining the worst distribution density with the given values of the first two moments. In the second step, the transportation plan is found, which is the best in this most unfavorable situation, when the distribution densities of the random cost of transportation are the worst. To find such densities, let’s use the modern mathematical apparatus of continuous linear programming
, , Dmytro Ivanchenko, Sergii Zinchenko,
EUREKA: Physics and Engineering pp 32-41; doi:10.21303/2461-4262.2021.001686

Abstract:
To increase the efficiency of using railway transport, the possibility of using new designs of bogies, for example, Y25 under "wide gauge" wagons was considered. In order to substantiate the proposed solution, mathematical modeling of the dynamic loading of the hopper wagon Y25 bogies was carried out. A hopper wagon for the transportation of pellets and hot sinter model 20-9749 built by the State Enterprise "Ukrspetsvagon" (Ukraine) was chosen as a prototype. The simulation results showed that the use of Y25 bogies for hopper wagons allows to reduce the acceleration of its load-bearing structure, in comparison with the use of conventional 18100 bogies, by 36 %. Other performance indicators are also significantly improved. The use of Y25 bogies for hopper wagons with actual parameters allows to reduce the acceleration of its load-bearing structure, in comparison with the use of conventional 18100 bogies, by 28 %. The determination of the main indicators of the strength of the bearing structure of the hopper wagon Y25 bogie was carried out. The calculation was carried out in the SolidWorks Simulation software package (CosmosWorks), (France), which implements the finite element method. The calculations showed that the maximum equivalent stresses in the load-bearing structure of a hopper wagon with nominal parameters are 17 % lower than the stress acting in the load-bearing structure of a wagon on bogies 18–100 V of the load-bearing structure of a hopper wagon with actual parameters, the maximum equivalent stresses are 12 % lower per voltage in the load-bearing structure on bogies 18100. The conducted research will help to reduce the load on the load-bearing structures of hopper wagons in operation, improve the dynamics and strength indicators, as well as their service life
Sugeng Hadi Susilo, Asrori Asrori
EUREKA: Physics and Engineering pp 78-86; doi:10.21303/2461-4262.2021.001707

Abstract:
Turbulent mixing can damage the material molecules because of turbulence. Whereas laminar mixing raises a problem when mixing is carried out on viscous liquids. The mixing mechanism using chaotic flow affects the mixing quality. The aim of the experiment was to determine the position and direction of the double stirrer chaotic mixer. The installation of a chaotic mixer uses a cylindrical tub and two different mixers consisting of a primary mixer (Pp) and a secondary mixer (Ps). Periodically rotate the container and stirrer. The center of the vessel and primary mixer are placed at the same coordinates. For ε=4 cm (Pp to Ps distance), there are three experiments, namely: vessel rotation and directional stirrer (P2S-a), vessel rotation and opposite stirrer (P2B-a), and vessel rotation, both primary and secondary stirrers are directional variations. (P2V-a). Eccentricity 7 cm, there are also three treatments as above: one direction (P2S-b), reverse direction (P2B-b), and variation of direction (P2V-b). The video camera recordings are processed digitally. Qualitative data show a pattern of behavior during mixing. Meanwhile, quantitative data is used to determine the level of mixing effectiveness. The results showed that the direction of rotation of the two cylinders had no effect on the effectiveness of chaotic mixing. Based on the number of initial droplets of dye, the treatment that experienced the fastest chaos was P2B-b, at n=2 and r=3.5303. The difference in the number of color droplets does not affect chaotic behavior. The highest mixing efficiency was generated by the lowest P2V-b mixing index value of 0.94. Simultaneously, the direction between the mixer and the container will provide maximum mixing efficiency. Isolated mixing areas (island) and areas of poor mixing occur because of one-way rotation and low eccentricity
Ikram Uralbaevich Tadjibaev
EUREKA: Physics and Engineering pp 137-142; doi:10.21303/2461-4262.2021.001687

Abstract:
In the article, on the basis of observational data the problems of the specific frequency of globular clusters are studied. Possible relationships between them and the absolute stellar magnitude of their host galaxy are considered, where the observational data published in the literature were presented. It should be noted that before us the relationship between the specific frequency and the absolute magnitude is shown as exponential functions. An empirical relationship between the specific frequency and the absolute value of the host galaxy were obtained and showed that the dependence of the specific frequency on the absolute magnitude is not linear, but has a quadratic function. It is also shown that the specific frequency determines the number of globular clusters in a given galaxy relative to our Galaxy. Also in the article, based on the results of studies of the specific frequency, some discussions are presented related to the origin and evolution of globular clusters. The results obtained show that the ratios of the specific frequency to the luminosity of the host galaxy are different. Variations in the specific frequency of elliptical galaxies are associated with variations in the mass-to-luminous flux ratio. This may be due to the fact that the number of globular clusters in spiral galaxies per unit of luminosity of the halo and not of the entire galaxy. Analysis of the observational data shows that the values of the specific frequency of spiral galaxies are 5–6 times less than that of giant elliptical ones. As a result of the results of studies of the specific frequency of the globular clusters, unsolved problems are listed and possible solutions are shown. It is noted that the problem posed will be solved even more accurately if it is considered by the types of galaxies
Alaulddin A. Kazum, Osam H. Attia, ,
EUREKA: Physics and Engineering pp 66-77; doi:10.21303/2461-4262.2021.001722

Abstract:
High smoke emissions, nitrogen oxide and particulate matter typically produced by diesel engines. Diminishing the exhausted emissions without doing any significant changes in their mechanical configuration is a challenging subject. Thus, adding hydrogen to the traditional fuel would be the best practical choice to ameliorate diesel engines performance and reduce emissions. The air hydrogen mixer is an essential part of converting the diesel engine to work under dual fuel mode (hydrogen-diesel) without any engine modification. In this study, the Air-hydrogen mixer is developed to get a homogenous mixture for hydrogen with air and a stoichiometric air-fuel ratio according to the speed of the engine. The mixer depends on the balance between the force exerted on the head surface of the valve and the opposite forces (the spring and friction forces) and its relation to decrease and increase the fuel inlet. Computational fluid dynamics (CFD) analysis software was utilised to study the hydrogen and airflow behaviour inside the mixer, established by 3.2 L engine. The Air-hydrogen mixer is examined with different speeds of engine1000, 2000, 3000 and 4000 RPM. Results showed air-hydrogen mixture was homogenous in the mixer. Furthermore, the stoichiometric air-fuel ratio was achieved according to the speed of the engine, the developed mixer of the AIR-Hydrogen mixing process provides high mixing homogeneity and engines with stoichiometric air-fuel ratios, which subsequently contributes to the high levels of efficiency in engine operation. In summary, the current study intends to reduce the emissions of gases and offer a wide range of new alternative fuels usage. While the performance of the diesel engine with the new air-hydrogen mixer needs to be tested practically.
, Oleg Dyshin, Sevda Alipasha Аghаmmadova, Irada Sabir Hasanzade
EUREKA: Physics and Engineering pp 124-136; doi:10.21303/2461-4262.2021.001708

Abstract:
One of the main problems of decision-making tasks is the need to take into account subjective expert assessments, the complete consistency of which is rare, and the choice of the best alternative. The complexity of the connections between the many-sided aspects of the decision-making situation and the lack of an accurate forecast of the consequences leads to the fact that when assessing and choosing alternatives, it is possible, and often necessary, to use and process qualitatively fuzzy estimates. In decision-making situations, when at least one of the elements (outcomes, criteria, preferences, expert opinions, etc.) is described qualitatively, indistinctly, there are problems of multi-criteria decision-making with fuzzy initial information. Let’s consider the solution to the problem of multi-criteria choice based on the rules of fuzzy conditional inference, which have the form of fuzzy statements, the conditions and conclusions of which, along with expert assessments of the criteria, are presented in the form of interval fuzzy numbers of the second type (IT2FN). The convolution of private implications in each statement is made according to Lukasiewicz's rule. To reduce the type and defuzzify the resulting IT2FN, the Karrnik-Mendel algorithm was used to construct the minimum and maximum centroids of nested fuzzy sets of the first type, which give an estimate of the utility interval for each alternative. To refine the obtained utility estimates, under conditions of incomplete definiteness of statements, using the generalized Bayesian inference mechanism, adjusted estimates of the utility intervals of alternatives are constructed. By comparing these intervals, a larger interval is determined and the corresponding alternative is taken as a solution to the problem under consideration. The application of the proposed approach to solving the problem of multicriteria selection of the most corroded section of a gas pipeline with ambiguous expert opinions is shown. To date, specific practical and theoretical results have been obtained for decision-making problems with fuzzy initial information
Serhii Denysiuk, Stefan Zaichenko, Vitalii Opryshko, Denys Derevianko
EUREKA: Physics and Engineering pp 19-31; doi:10.21303/2461-4262.2021.001689

Abstract:
To ensure the functioning of the energy system, coordination and increase the efficiency of its parts need new control mechanisms. Generation, transmission and consumption of electricity needed control mechanisms that include integration of self-organizing power and heat supply systems, built on multi-agent principle. Also they must correspond intellectual basis, monitoring and accumulation. This includes effectiveness assessment of the state and analysis of technical, technological and organizational management mechanisms. One of the main parts is interaction principles of energy systems in accordance with European Community policy at various levels at liberalized electricity market. In most developed countries, demand management programs are widely used as a means of harmonizing the modes of generation and consumption in the power supply system. The main direct methods are set in the form of electricity tariffs. Indirect methods are set in the form of programs to manage electricity demand and the possibility of their application to manage electricity demand. Methods for estimating the unevenness of the daily schedule of electricity consumption and the factors influencing the technological environment are presented. The work aims at scientific and applied problem – finding methods of estimation and features of managing the demand for electricity. The use of the proposed estimation methods of electricity consumption influence non-uniformity on the level of power supplies system losses based on Frize QF power and optimization of consumers’ operation modes in the power supply system is considered. Approaches and optimization mechanisms of the daily electricity consumption on the example of a residential complex with the possibility of energy accumulation are offered
Akeel M. Ali Morad, Alya Aqeel Mohammed, Angham Omeer Sahi,
EUREKA: Physics and Engineering pp 3-10; doi:10.21303/2461-4262.2021.001706

Abstract:
A heat transfer modeled for predicting the wall temperature of aeration tank in a biological wastewater treatment subsystem of Hamden station is presented. The method to treatment employed depending upon the pollutants in wastewater and extent to which it is desired to eliminate them in order to congregate required standards of water quality. Several heat gain and loss mechanisms concerned to develop of the model of temperature computer includes heat gains through conduction and radiation. While the heat losses referred to convection and radiation. It classified radiation heat transfer and biological reaction as a gained heat, while classifying the rate of evaporation, aerator, and wind velocity as lost heat. This study relied on a previous study, and based on the assumptions that have been identified so that a model development can be obtained to calculate the surface temperature of the wall of the aeration tank in a biological treatment system. The operational, weather and temperature data were to be registered from Iraqi weather forecast- Basra Airport. To obtain reliable results, the model was simulated using the STELLA software v.9.02, which gave accurate results in determining the parameters that affect the tank wall temperature changes. The STELLA software is Model calibration and considers as a dynamics language because of STELLA is software for graphic and dynamic simulation for the wall temperature of aeration tank. The results have shown a good accuracy and increment between the production walls temperatures with average ranged about (0.2 %) of present work. The model shows the sensitivity through set of precious five parameters like organic removal rate, ambient air temperature, wind velocity, air relative humidity, and the wall effective area of the aeration tank
Olena Nikolenko,
Published: 16 March 2021
EUREKA: Health Sciences pp 9-15; doi:10.21303/2504-5679.2021.001653

Abstract:
The aim. The aim of the study was to conduct a comparative analysis of fibroblast growth factor-2, the total content and fractions of sulfated glycosoaminoglycans as well as free and peptide-bounding oxyproline as the markers of connective tissue metabolism in young patients with mitral valve prolapse, type 1 diabetes mellitus and the combination of both indications. Materials and methods. 93 patients between 19 and 33 years old with either mitral valve prolapse, or type 1 diabetes or the combination of both indications were examined. Group 1 was represented by 36 patients with the monomorbid type 1 diabetes mellitus. Group 2 consisted of 33 patients with type 1 diabetes mellitus and mitral valve prolapse. The comparison group included 24 people with diagnosed mitral valve prolapse. The concentration of fibroblast growth factor-2 in blood plasma was determined by the enzyme immunoassay using a Quantikine reagent kit (Human FGF basic Immunoassay), manufactured by R&D Systems, Inc. (USA) and expressed in pg/ml. The total content and fractions of glycosaminoglycans in blood serum were determined by the method of N. G. Stern et al. and expressed in units of optical density. The level of free and peptide-bounding oxyproline in blood serum were determined by the method of P. N. Sharaev and expressed in µmol/L. Results. Fibroblast growth factor-2 was higher in group 2, where it was 23.7±0.25 pg/ml compared to the control group – 14.20±0.22 pg/ml (p <0.01). There was also a significant difference in the levels of fibroblast growth factor-2 between groups 1 where it equaled 15.33±0.24 pg/ml and 2 – 23.71±0.25 pg/ml (p<0.01). The total content of glycosaminoglycans in comparison with the control group, where it was equal to 9.7±0.62 odu, was higher in all groups of patients: in group 1 it was 12.07±1.04 odu, in the comparison group it was 11.75±0.83 odu, in the group with the combined pathology it was 13.32±1.59 odu (p<0.05). The values of glycosaminoglycans II fraction, were higher in group 2 – 4.96±0.59 odu. The level of peptide-bound oxyproline, just as the level of free oxyproline, significantly increased in patients with comorbid pathology in group 2, compared to the control group: 16.06±1.54 µmol/l versus 8.7±0.81 µmol/l (p<0.01) respectively. Conclusions. The values of fibroblast growth factor-2, glycosaminoglycans II fraction, free and peptide-bound oxyproline were significantly higher in patients with diabetes mellitus and mitral valve prolapse in comparison with the control group. Fibroblast growth factor-2 was higher in patients with comorbid pathology compared to the monomorbid diabetes patients.
Serhii Vdovichenko, Anna Bober, Oleksandra Lubkovska, Vitalii Strakhovetskyi
Published: 28 February 2021
ScienceRise pp 55-61; doi:10.21303/2313-8416.2021.001680

Abstract:
The object of the study: Uterine fibroids (UF) in women of early reproductive age. The problem to be solved: Improving the effectiveness of postoperative rehabilitation in women of early reproductive age with uterine fibroids based on the study of its morphological features and improvement of rehabilitation measures. The main scientific results: It was found that in women of early reproductive age with UF the most common complaints are posthemorrhagic anemia (61.0 %, or 61 women). Regarding the menstrual cycle, the most common dysmenorrhea – 26.0 % (in 26 women). The importance of heredity in the development of such pathology in young women (32.0 %, or 32 women) was confirmed. The most common localization of fibroids is interstitial – 79.0 % (in 79 women). Morphological study found that women of early reproductive age most often have a simple UF, namely 96 % (96 women). Uterine leiomyoma was present in 56 % (56 women). A study of the hormonal status of women of early reproductive age found that the mean values ​​of hormones such as follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol, progesterone, prolactin and testosterone were higher before surgery than after. When comparing rehabilitation methods (combined oral contraceptives (COCs) or gonadotropin-releasing hormone agonists (GnRH agonists), it was found that postoperative rehabilitation by using COCs for 6-12 months provides significantly better indicators of recovery of hormonal status, indicating the effectiveness of rehabilitation method. Scope of practical application of research results: Practical medicine specializing in the diagnosis, treatment and prevention of recurrence of uterine fibroids. Innovative technological product: Improved algorithm of postoperative rehabilitation measures by applying COC for 6-12 months after myomectomy, which provides significantly better results in restoring hormonal status during rehabilitation. Scope of application of innovative technological product: clinical medical practice related to the diagnosis, treatment and prevention of recurrence of uterine fibroids.
Оleksey Vlasov
Published: 27 February 2021
ScienceRise pp 50-54; doi:10.21303/2313-8416.2021.001671

Abstract:
Newborns with severe congenital malformations need radical surgical correction as soon as possible for ensure the quality of life of the infant in the future. Pathological changes associated with the underlying pathology may be accompanied to severe disturbances of homeostasis in the postoperative period. The aim of the study. To assess the level of ionic composition of plasma in infants with congenital malformations during surgical correction and various types of combined anesthesia. Investigated problem: To prevent electrolyte peri- and postoperative complications, it is obligatory to perform preoperative preparation and stabilization of laboratory parameters, for a child with congenital malformations and to monitor they throughout the operation. The main scientific results: The electrolyte composition in the examined groups of infants did not show significant differences from age norms. The concentration of potassium was the lowest in group III of the examined in comparison with groups I and II at the stage of preparation for surgery (p=0.0041; p=0.0102), induction of anesthesia (p=0.0053; p=0.0054), while children of groups I and II were diagnosed with a tendency to the upper limit of normal serum potassium levels during all observation periods. Elevated sodium levels were diagnosed in group III at all stages of surgical treatment and in group II of infants with congenital malformations at the stage of the most painful and traumatic moment of surgery (159.94±4.89 – II, 139.27±3.043 – III, p=0.1857). The area of practical use of the research results: pediatric anesthesiology Innovative technological product: laboratory control Scope of the innovative technological product: neonatal intensive care unit, surgery
Oleksandr Savoiskyi, Valerii Yakovliev, Viktor Sirenko
Published: 27 February 2021
ScienceRise pp 3-10; doi:10.21303/2313-8416.2021.001667

Abstract:
Object of research: the process of heating a biological object with various methods of supplying thermal energy, in particular, convective, direct electric and combined methods. Solved problem: intensification of heating of high-moisture biological objects during the drying process. Main scientific results. The expediency of using a combined (direct electric and convective) supply of thermal energy for intensifying heating of raw materials in the drying process has been established. In terms of the duration of the heating process, combined heating is much more effective than using purely convective or direct electric heating. Comparison of the values of the duration of the heating process for a body weighing 0.0028 kg shows that the combined heating occurs 1.5–2.5 times faster. At the same time, the consumption of electrical energy for the selected processing modes is 279–254 J, which is 80–87 % of the total required energy. It has been found that the main control factor in the combined heat supply is the applied voltage of direct electric heating. The area of practical application of the research results: enterprises of the processing industry, specializing in the production of dried products. Innovative technological product: a combined method of heating high-moisture objects during the drying process, which will provide intensive and energy-efficient processing modes while maintaining the established quality of the finished product. Scope of application of the innovative technological product: production of finished food products and semi-finished products.
Leonid Zamikhovsky, Olena Zamikhovska, Nataliia Ivanyuk
Published: 27 February 2021
ScienceRise pp 33-40; doi:10.21303/2313-8416.2021.001678

Abstract:
Object of research: degradation processes occurring in the blades of a gas-pumping unit (GPU) during its long-term operation and cause the appearance of defects that lead to a change in their technical condition and breakage of the working blades and, as a result, to accidents. Solved problem: obtaining a method for diagnosing the GPU blades, which can be used to determine its technical condition during the GPU operation. The main scientific results: a classification of methods for diagnosing the GPU blades and their analysis was developed, according to the results of which it was established that the improvement of a new method of aerodynamic calculation of profiles relative to the GPU blades by developing mathematical models of the deformation process and flow around the GPU blades and calculation formulas for assessing their aerodynamic characteristics, will allow to simulate possible options for changing the technical state of the blades (the amount of wear of the blades, their number, deformation, etc.), to study their influence on the parameters of the oscillatory processes of the blades and to compile a dictionary (base) of diagnostic signs of their state. The use of such a base will make it possible to quickly determine the technical condition of the blades during the GPU operation and prevent the occurrence of emergency situations The area of practical use of the research results: the enterprises of the gas transmission system, which operate GPU with a gas turbine drive An innovative technological product: a method of direct aerodynamic calculation of airfoils relative to GPU blades to determine their technical condition during operation. Scope of application of the innovative technological product: gas-pumping units with a gas turbine drive with a capacity of 6.3 MW to 25.0 MW
Alex Grebin, Ninel Levenets, Volodymyr Shvaichenko
Published: 27 February 2021
ScienceRise pp 22-32; doi:10.21303/2313-8416.2021.001673

Abstract:
The object of research. Process of phonograms restoration and recovery are described. Investigated problem. Differences between some methods of quality control of phonograms during and after their restoration and recovery were investigated. The main scientific results. An instrumental method for objective assessment of the quality of phonograms is proposed, based on a non-intrusive model with parametric modeling of the phonogram signal to assess the effect of an artifact on a phonogram. The area of practical use of the research results. The results of the operational control of objective quality indicators of a real sound signal using virtual measuring instruments built into the software for working with sound are considered. An innovative technological product: a technology for assessing the quality of phonograms in the process of restoration and recovery (R&R), which makes it possible to objectively assess the quality of phonograms, taking into account artifacts of phonograms caused by the method of recording phonograms, the conditions of their storage, etc. enough high quality restored audio content. Scope of application of the innovative technological product: studio of restoration and recovery of sound phonograms on analog media, recording studios, technological processes of conversion and processing of sound programs, archives of radio and television recordings.
Oleksandr Chereshnevyi
Published: 27 February 2021
ScienceRise pp 62-68; doi:10.21303/2313-8416.2021.001666

Abstract:
The object of research: This article explores the necessary ways to improve the classification of non-current tangible assets on the example of non-current tangible assets for special purposes. Solved problem: bringing the classification of non-current tangible assets to the accounting needs of the institution will improve the structure, quality of accounting information reflected in the accounting registers and allow the application of uniform methodological provisions of accounting to such tangible assets. Investigated problem: structuring the classification features of non-current tangible assets of budgetary institutions of Ukraine, which listen to modern requirements for the accumulation of information and the needs of internal and external users for the adoption of administrative management. The main scientific results: The proposed approaches to the classification of non-current tangible assets, namely the attribution of non-current tangible assets for special purposes to fixed assets, will bring the accounting information of budgetary institutions to the economic essence of these assets. This, in turn, will improve the quality of accounting information for management decisions, reduce the number of errors in the reflection of business transactions with these assets. The ability of the existing classification of non-current tangible assets to structure the tangible assets according to their properties and technical characteristics is proved. To confirm the opinion about the inconsistency of the modern classification of non-current tangible assets, a comparative description of the properties of fixed assets, other non-current tangible assets, and non-current tangible assets for special purposes is given. The area of practical use of the research results: the practical results of this study are primarily aimed at application in the activities of budgetary institutions of Ukraine. But it is also expedient to apply the obtained scientific achievements at the enterprises and establishments of the public sector. Innovative technological product: approaches to the classification of non-current tangible assets in budgetary institutions with the simultaneous possibility of implementing the results obtained in existing software products for automation of settlement processes and budget accounting in general. Scope of the innovative technological product: the results presented in this study are relevant and recommended for use in all budgetary institutions. It will be especially useful for implementation by senior fund managers whose functions are related to defense or law enforcement measures
Vasyl Voitseshyn,
Published: 27 February 2021
ScienceRise pp 69-76; doi:10.21303/2313-8416.2021.001672

Abstract:
The object of research: the procedural order of fiscal and accounting regulation of revenues from export agricultural products (export receipts, the export duty). Investigated problem: obtaining stable and repetitive connection between the accounting part, the fiscal part of the regulation and exports of agricultural goods with possibility of improvement. The main scientific results: it is revealed that the first stage of fiscal-accounting regulation of exported agricultural products is transactions’ accounting on accounts. It should be noted that, after the abolition of the mandatory sale in Ukraine, there is no need to apply the distributive account in export of agricultural products. It will help to reduce the time of enrollment the currency and its using by exporters for their needs. It is determined too, that the second stage of the regulation is the export receipts and revenues from the export duty. Moreover, using economic (mathematical) modeling, based on correlation-regression analysis, it is illustrated positive effects for reducing of export duty rates on revenues from export agricultural products in Ukraine. The area of practical use of the research results: Government of Ukraine in formation of export strategy, and exporters – in the context of accounting. Innovative technological product: the regulation technology of the cyclical accounting and fiscal parts in agricultural exports with using modeling econometric analysis for determination of direction of its development. Scope of the innovative technological product: Ukraine’s Government practice in using mathematic modeling for determination of trends of agricultural exports.
Tarana Dzhafar Kyzy Alieva
Published: 24 February 2021
ScienceRise pp 41-49; doi:10.21303/2313-8416.2021.001668

Abstract:
Object of research: homozygous and heterozygous disorders of genes encoding the enzymes of the folate cycle, methylenetetrahydrofolate reductase (MTHFR) and methionine-synthase-reductase (MTRR). Solved problem: an in-depth study of genetically determined risk factor’s influence for reproductive losses associated with homozygous and heterozygous disorders of folate cycle genes. Main scientific results: in-depth study of genetically determined reproductive losses as a systemic phenomenon was held. The structural characteristics of reproductive losses in population and significant predominance of pathology in the pedigrees of those examined with a burdened obstetric history of reproductive losses were determined. Also, a significant increase in the chances of reproductive loss in patients with heterozygous and homozygous inheritance of MTHFR and MTRR genes was determined. A correlation effect on the degree of genomic polymorphism of the MTHFR and MTRR gene was noted. Area of practical use of research results: medical-genetic institutions. Innovative technological product: determination of genetically risk factors for growth of reproductive losses of the population associated with homozygous and heterozygous disorders of genes encoding the enzymes of the folate cycle (MTHFR C677T and MTRR A66G). Timely adjustment of folic acid levels allows to prevent birth defects and reduce reproductive losses Scope of application of the innovative technological product: clinical medical-genetic practice using the ability to determine the polymorphism of genes MTHFR and MTRR, which makes it possible to timely adjust the level of folic acid and prevent the reproductive losses.
Page of 28
Articles per Page
by
Show export options
  Select all
Back to Top Top