bluuebunny/crossref_metadata_2025 huggingface dataset:
The efficiency of growing large meat chickens of various crosses in cage batteries
Authors: Abdulkhalikov Rustam , Malorodov Victor
Published: May 2021

The article presents the results of a comprehensive assessment of the possibility of producing large meat chickens of domestic and foreign crosses with the cage method of growing, considering the separation by gender. The highest broiler productivity index was 213 units, which is by 27 units higher than when growing broilers of a foreign cross. The content of histidine is significantly higher in the meat of broilers of the domestic cross (by 0.50 g in the muscles of cockerels and by 0.54 g in the muscles of hens). It was found that it is advisable to produce large meat chickens using the domestic SK-Rus 613 cross for deep processing of individual parts of carcasses. The results are confirmed by the zootechnical efficiency of broiler production, the biological usefulness of the muscle composition and meat qualities, as well as the taste and aroma properties of meat products.
Experimental results on pancreatic juice parenteral application in broiler growing
Authors: Vertiprakhov Vladimir , Grozina Alyona , Fisinin Vladimir , Ovchinnikova Natalya , Kozhokov Muhammed
Published: May 2021

The paper presents the results of the use of pancreatic enzymes in the form of intramuscular injection of pure pancreatic juice obtained from fistulated chickens to broiler chickens. At 7 days of age during the formation of groups, the differences between the control and experimental chickens were 17.9% (p<0.05) in favor of the former. It was found that after the injection of the drug 1 time in 7 days, there was a stimulation of metabolism in the experimental group broilers. By 14 days of age, the differences between the groups were 17.4% (p<0.05), to 21 days of age - 9.1% (p<0.05), to 28 days of age - 5.3%, to 35 - day-old age - 4.9%. Consequently, as the chickens were raised by 28 days of age, the chickens of the experimental group caught up with the live weight of the control ones, and, considering the increase in live weight, even exceeded this indicator (50.1 g/day versus 42.7). The use of parenteral pancreatic juice of chickens at a dose of 0.1ml/kg of live weight of broiler chickens allows to conclude that the drug has a stimulating effect on poultry metabolism, manifested by an increase in live weight gain, an increase in the content of lymphocytes, as an indicator of immunity, activation of protein and mineral metabolism in the body when using an enzyme preparation.
Biotechnological aspects of transformation of heavy metal salts and their detoxication in milk of milk cows
Authors: Dzagurov Boris , Getokov Oleg , Gukezhev Vladimir , Kokov Taladin , Vorokov Vitaly
Published: May 2021

Based on the results of previous studies on pigs and poultry, in which encouraging results of a significant decrease in the concentration of heavy metals in the body were obtained, respectively, in pork, poultry and eggs, the study provided for the use of the bentonite clay of the Zamankul deposit (RNO-Alania) as an enterosorbent in relation to heavy metals and detoxification of the organism of dairy cows. In order to study the feasibility of using bentonite as an enterosorbent, studies were performed on dairy cows of the Simmental breed in the Kaloyev farm located in st. Zmeyskaya, Kirovsky district of North Ossetia-Alania. To conduct research on the principle of analog pairs, two experimental groups of cows (control and experimental, five cows in each group) of the 3rd and 4th lactation were formed. The experiment lasted for 305 days of lactation from March 2018 to January 2019. Herewith, the control group of cows was fed with a basic diet balanced in all nutritional elements, the experimental livestock, together with the main diet, daily in the composition of the concentrates was injected with crushed bentonite with a particle diameter of 4-6 mm based on the dry matter of the feed (137 g/animal). The study of the concentration of heavy metals (cadmium, lead and zinc) in soil, feed, blood and milk was performed in two periods of lactation (on the 250th and 300th days of lactation). Herewith, an increased content of heavy metals in the soil was established, relative to the MPL: cadmium - 10.1; lead - 7.4; zinc - 9.7 times more, in drinking water: cadmium - 2.5 times; lead - 9.0 times and zinc - 9.7 times more, in feed: cadmium - from 1.7 to 5.3 times; lead - from 1.1 to 1.7; zinc - from 1.0 to 2.5 times the MPL. The inclusion of bentonite to the ration of the animals of the experimental group, in comparison with the control group, in both study periods (250 and 300 days of lactation) contributed to a significant decrease in the concentration of the studied heavy metals in the blood from 17 to 20%, in milk - from 16 to 18 %. The transformation ration values of heavy metals from feed into the body, respectively, into milk, were also lower in the animals of the experimental group, relative to the control.
Exterior and constitutional features of first-calf cows of black-and-white cattle of different genotypes
Authors: Basonov Orest , Petrov Dmitry , Karynbaev Amanbai , Aisanov Zaurbek , Kagermazov Tsrai
Published: May 2021

The dairy cattle breeding development depends largely on the culture of raising young animals of the cattle. Production and maintaining healthy young animals is an extremely challenging task for livestock breeders [1,3,12,14]. Breeding of dairy replacement heifers is considered a major element of the breeding system and milk production technology, since the formation of milk production takes place just in the process of growth and development. Individual selection of parental pairs affects not only the cattle reproductive ability, but also the growth of offspring [2, 4,13], [5-11].
Frequency distribution of polymorphic variants of the beta-casein locus in Russian various breed cattle subpopulations
Authors: Kovalyuk Natalia , Shiryaeva Elena , Yakusheva Lyudmila , Kaishev Vladimir , Aisanov Zaurbek
Published: May 2021

Using the author’s test system, 2607 Holstein, Ayrshire and Jersey breeds were genotyped at CSN2 locus. It was determined that the frequency of preferred genotype A2A2 is in Holstein, Ayrshire and Jersey groups of animals - 0.21; 0.25 and 0.60 respectively. The frequency of A2 allele in Holstein breed is 0.48; in Ayrshire - 0.51; in Jersey - 0.78. Thus, the Russian subpopulations of Ayrshire, Jersey, and Holstein cattle subpopulations according to frequencies of A2A2 genotypes (CSN2 locus), the Jersey breed has the best indicators (0.60). Russian breeding enterprises selling semen production of Ayrshire and Holstein bulls should increase the share of breeders with CSN2 genotypes A2A2.
Polymorphism of CAST gene in five sheep breeds in Bulgaria
Authors: Dimitrova Ivona , Bozhilova-Sakova Milena , Teneva Atanaska , Ivanova Tanya , Stoycheva Ina
Published: May 2021

CAST gene is a candidate marker that influences the intensity of growth and meat quality. The aim of this study was to investigate the genetic variability of CAST gene in five Bulgarian sheep breeds – two merino, two local and one for milk. A total of 150 ewes, belonging to these breeds were investigated for polymorphisms of CAST gene by using PCR-RFLP method. A 622 bp fragment of Ovis aries CAST gene was amplified using PCR. After restriction with endonuclease MspI two alleles were observed in Ascanian, Caucasian, Breznik and Pleven Blackhead breeds. One allele (M) and one genotype (MM) were detected in Cooper-Red Shumen breed. The highest frequency of the allele N was established in the Ascanian merino breed (0.27) followed by Caucasian merino (0.13), Breznik (0.12) and Pleven Blackhead (0.07). Two genotypes - MM and MN, were observed in Caucasian, Breznik and Pleven Blackhead breeds. The three possible genotypes were found only in Ascanian merino ewes - MM, MN and NN. The lowest frequency of the homozygous genotype MM (0.50) and the highest frequency of the heterozygous genotype MN was established in the Ascanian merino breed (0.47). The obtained results confirm that the PCR-RFLP method can be used to identify different genotypic variation of CAST gene in Bulgarian sheep breeds. The established genetic diversity in the calpastatin gene indicates that, after further associative studies, this gene may be included in the breeding programs of certain sheep breeds.
Complexes of ground beetles (Coleoptera, Carabidae) in agrocenoses of cultivated crops of Krasnodar Territory
Authors: Bondarenko Alexandr , Khomitskiy Eugeniy , Zamotajlov Alexandr , Belyi Alexandr
Published: May 2021

The paper presents new data on the species composition of ground beetles of row crops in 10 municipalities of the Krasnodar Territory. Pursuant to the research results, 45 species of Carabidae were identified. The chorological analysis and the analysis of the ecological groups noted in the model areas were performed.
Isolation sources of micro and macro elements among connection rice samples the creation of drought-resistant forms
Authors: Goncharova Yu. K. , Braginа O.A. , Kharitonov E.M. , Goncharov S.V. , Ochkas N.A.
Published: May 2021

Metals content affects not only for nutritional value of plants, but also their resistance to stress. So it was revealed that cationic composition changes hydration of cytoplasm. Hydration of cytoplasm positively correlated with content of alkali metals, a representative of which is potassium, and negatively with amount of alkaline earth metals (calcium, magnesium). Variability of rice collection samples in terms of content of potassium, sodium, calcium, magnesium, ammonium cations has been studied. Sources that are recommended to be used in breeding programs for the creation of drought-resistant forms are highlighted. The potassium content varied in the rice samples from 40 to 90%. In 18 samples, its content did not exceed 70%, in 13 it was above 80%, which makes it possible to recommend them as sources of these trait: Olymp, Ivushka, Dozhdik, Berezka, Rapan, Aurora, Fisht. The study of the relationship between the content of cations showed their presence between the content of potassium and sodium - 0.87, potassium and ammonium - 0.45, calcium and magnesium 0.35.
Biological effectiveness of the range of disinfectants winter wheat seeds used in Krasnodar Territory
Authors: Moskaleva Natalya Anatolyevna , Dmitrenko Natalia Nikolaevna , Sasova Natalya Anatolyevna
Published: May 2021

In the conditions of the Krasnodar Territory, the pre-sowing treatment of seeds with drugs against diseases has firmly entered the system of protection of winter wheat. The use of seed dressing agents minimizes the risk of reducing field germination, ensures good overwintering of the crop, while being one of the most environmentally friendly plant protection methods. The idea of the biological efficiency of the seed disinfectants applied in the conditions of the region will allow not only to purposefully select a disinfectant, but also to prevent the resistance of pathogens causing diseases of seeds. An analysis of the range of fungicidal disinfectants used in the Krasnodar Territory in 2019 showed that the range was based on combined disinfectants based on several active substances with a different mechanism and spectrum of action, as well as that the shares of one-component and four-component drugs in it were - 10%, two-component - 20%. Combined dressers based on three active ingredients were the basis of the range used, the share of such preparations was 60%. Analysis of the data obtained allows to conclude that the modern range of dressing agents used in the farms of the Krasnodar Territory is capable of almost completely restraining the development of the pathogenic complex on winter wheat seeds. The maximum biological efficiency at the level of 100% was shown by the preparations in protection against dust and kernel smut, while it was at the level of 96.5% in protection against fusarium root rot.
The availability of new potato cross-breeds for industrial processing
Authors: Basiev Soltan Soslanbekovich , Kozaev Petr Zaharovich , Doeva Asia Taimurazovna , Kozaeva Diana Petrovna
Published: May 2021

Under the conditions of the Republic of North Ossetia-Alania, an assessment of the availability of new cross-breeds of their own breeding to industrial processing of French fries according to morphological, biochemical and consumer quality indices has been carried out. It has been specified that the requirements for tubers on morphological grounds for the production of French fries are satisfied by cross-breeds 10.11/53 and 10.11/804, characterized by an elongated form of tuber, flat and smooth surface, shallow depth of the eyes. According to the quality of the finished product we should select the cross-breed 10.11/1787 due to the faintly darkening pulp of the frozen semi-finished product, the attractive appearance of the finished French fries, their good taste and smell. Cross-breeds 10.11/53 and 10.11/804 should be recommended for the cumulative French fries.
Agri-food market of the region: strategic analysis and development prospects
Authors: Gyatov Anzor , Soskiyeva Zarina , Marzhokhova Madina , Shardanov Anzor , Bagova Oksana
Published: May 2021

The agri-food market is distinguished by a high degree of dependence on external factors, such as climatic and weather conditions, uneven supply and demand for agricultural products due to the seasonality of production, which explains the dynamism and instability of this market segment. [1] Due to the indicated reasons, the process of current and strategic planning, analysis, determination of development prospects, is an integral part of agricultural production. The article studies the state of the agri-food market of the Kabardino-Balkarian Republic on the scale of the North Caucasian Federal District. The dynamics of the indicators of the produced crop and livestock products in the context of the regions of the NCFD are considered and analyzed, the comparative characteristics of the analyzed values are performed. The results of the analytical study made it possible to build a SWOT analysis model, which identifies the strengths and weaknesses of the agri-food market of the Kabardino-Balkarian Republic, as well as the opportunities and threats of its development.
Legal and organizational means of innovative development of the agro-industrial complex in Russia
Authors: Savoskin Alexander , Kalitskaya Victoria , Vilacheva Maria , Toguzaev Takhir , Zhemukhov Aslan
Published: May 2021

The performance of agriculture in Russia remains unsatisfactory, which requires the state to take active measures to support and develop it. In recent years, government policy has been focused on the formation of a high-tech agro-industrial complex, the introduction of digital means and ensuring food security. At the same time, the measures which are taken by the state do not form a single integrated system and do not ensure the achievement of the desired effect. The publication analyzes the current state of legislation in the field of agro-industrial complex support. Particular attention is paid to the Federal Scientific and Technical Program for the Development of Agriculture for 2017 - 2025. Based on the results of the research, conclusions about the need to adopt a comprehensive federal law and strengthen the role of the State Council of the Russian Federation in the development of a national agrarian policy are drawn, measures to improve legislation in the field of supporting the innovative development of agriculture are substantiated, and additional measures of state support for the agro-industrial complex in the Russian Federation are proposed.
The mechanism of legal regulation of innovative technologies in the agro-industrial complex of the Eurasian Economic Union: realities and prospects
Authors: Meshcheryagina Veronika , Vilacheva Maria , Kurdyumov Alexander , Kyarova Madina , Temmoeva Svetlana
Published: May 2021

The article contains a research of the elements of the legal mechanism for regulating public relations in the field of digitalization of the agro-industrial complex of the EAEU, highlights the legal means of integrating the norms of international and domestic law (using the example of the Russian Federation) in the mechanism of regulation of the agro-industrial complex of the EAEU. It is concluded that in the process of implementing the EAEU norms into the domestic legislation of Russia, there is a combination of two independent legal systems, respectively. The elements of the mechanism for the implementation of EAEU norms include transformation (inclusion of international norms in national legislation in amended form) and incorporation (exact textual reproduction of international norms in national legislation), which must be taken into account when regulating the digitalization of the agro-industrial complex. After analyzing the current regulatory framework for regulating innovative technologies in the agro-industrial complex of the EAEU, the authors have to admit its compressed volume and low elaboration from the standpoint of legal technology, as well as propose priority areas for legal regulation of innovative technologies in the agro-industrial complex of the EAEU.
Bioengineering systems for protection and improvement of urbanized areas of coastal and recreational zones
Authors: Kurbanov Saligadzhi , Sozaev Akhmed , Shogenov Astemir , Karshiev Abduvali
Published: May 2021

The problems of protection and environmental management of disturbed and urbanized areas of coastal and recreational zones are urgent for the southern regions of Russia. Exogenous natural processes, intensively developing in the basins of small rivers of mountain zones, pose dangerous situations for populated areas and tourist centers. The applied methods of controlling exogenous processes require ecologization and adaptation to the natural environment. Engineering systems are required to solve the complex problem of reliable protection of urbanized and recreational areas and restoration of disturbed land areas. Bioengineering systems, interconnected structures, which effectively perform engineering and biological functions of protecting territories and restoring disturbed lands have to be developed. For scientific substantiation of proposed bioengineering systems, theoretical and experimental research methods were used, as well as scientific and technical achievements in the fight against exogenous natural processes. The main study results are new constructive and technological solutions for environmental bioengineering systems in disturbed areas of coastal and recreational zones. In compliance with the regulatory requirements for environmental technologies, protective and regulatory structures and slope fastenings have been developed, forming bioengineering systems. Theoretical foundations and recommendations for the design and construction of bioengineering systems for river bed regulation, protection and restoration of disturbed lands in protected areas have been developed. For further studies, scientific, technical and technological foundations for the development of bioengineering protective systems from the proposed structures have been developed. In the future, technical conditions and projects of standard structures of protective and regulatory structures will be developed.
Rural and agroindustrial tourism as a factor of socio-cultural and economic development of the territory
Authors: Oshkordina A. A. , Radygina E. G.
Published: May 2021

The paper discusses current issues and problems of organizing and implementing event and tourist activities as an effective tool for popularizing and attracting attention to rural areas, which, in the context of the COVID 19 preventive campaign around the world, is a relevant factor for many categories of the population. The authors have identified the positive and negative factors of tourist activities organization, affecting the socio-cultural and economic level of rural development. The main directions of organization, implementation and development of rural and agroindustrial tourism on the territory of a separate subject of the Russian Federation have been determined. Most important, in the current difficult conditions of the tourist industry development, in many territories of Russia domestic tourism is becoming a priority, focusing, among other things, on the creation of new products of rural and agroindustrial tourism.
Evaluation of the ecological efficiency of soil cultivation machines with innovative dynamic working bodies
Authors: Dzhabborov Nozim I. , Dobrinov Aleksandr V. , Semenova Galina A.
Published: May 2021

The research results are related to the problem of enhancing the environmental safety of technical means in crop production. A research object is a tillage machine with standard and innovative dynamic working bodies. The research is aimed to a comparative ecological assessment of the efficiency of using typical and dynamic working bodies for surface tillage. The scientific novelty is represented by the regularities of changes in resistivity per unit of active frontal area of the investigated working bodies, inertia force and total kinetic energy, per hectare fuel consumption, fuel economy and reduction of emissions of toxic components at different speed modes of operation of the tillage unit. During the research, the methods of experimental research in the field, analysis and generalization of experimental data were used. It has been established that the resistivity per unit of active frontal area of a dynamic tillage working body with an energy-storage transmission mechanism within the range of speed variation from 2.22 to 3.33 m/s decreases by 33-41% in comparison with a typical working body. With an increase in the speed of the tillage unit with standard working bodies from 2.22 to 3.33 m/s, the fuel consumption increases from 5.12 to 9.21 kg/ha. Within these limits of the speed of the tillage unit with dynamic tillage working bodies and energy-accumulating transmission mechanisms, the per hectare fuel consumption increases from 4.81 to 8.30 kg. The use of dynamic working bodies on the tillage machine allows to save from 0.310 to 0.910 kg of fuel per 1 ha. Herewith, the decrease in the level of emissions of toxic components is 6-10%, which ensures a decrease in the environmental load of soil-cultivating units during the cultivation of crop products.
Sustained coherent epitaxy and role of oxygen vacancies in La0.7Sr0.3MnO3−δthin films grown on SrTiO3by sputtering
Authors: Lmouchter Mohamed , Suzuki Minoru
Published: May 2021

Ferromagnetic La0.7Sr0.3MnO3−δ(LSMO) epitaxial thin films of single-crystal quality with very smooth surfaces are grown on SrTiO3(100) substrates by on-axis rf magnetron sputtering. We find that the resistivity and the spontaneous magnetization for these 180 nm thick films are nearly equal to those of single crystals after thermal annealing. On the other hand, the Curie temperatureTCis no higher than 270 K, a value far below the bulk one, which is quite unusual. As a clue to this riddle, we note a strong correlation between the lattice constant for these films and the amount of oxygen vacancies in the case of LSMO, an oxygen-nonstoichiometric oxide. From this, we conclude that the sustained coherent epitaxy takes place to match the lattice mismatch of 0.8% by incorporating a limited amount of oxygen vacancies, which relaxes the film in-plane stress while functions to significantly reduceTC.
A priorierror estimates for the space-time finite element approximation of a quasilinear gradient enhanced damage model
Authors: Holtmannspötter Marita
Published: May 2021

In this paper we investigatea priorierror estimates for the space-time Galerkin finite element discretization of a quasilinear gradient enhanced damage model. The model equations are of a special structure as the state equation consists of two quasilinear elliptic PDEs which have to be fulfilled at almost all times coupled with a nonsmooth, semilinear ODE that has to hold true in almost all points in space. The system is discretized by a constant discontinuous Galerkin method in time and usual conforming linear finite elements in space. Numerical experiments are added to illustrate the proven rates of convergence.
A generalized finite element method for the strongly damped wave equation with rapidly varying data
Authors: Ljung Per , Målqvist Axel , Persson Anna
Published: May 2021

We propose a generalized finite element method for the strongly damped wave equation with highly varying coefficients. The proposed method is based on the localized orthogonal decomposition introduced in Målqvist and Peterseim [Math. Comp. 83 (2014) 2583–2603], and is designed to handle independent variations in both the damping and the wave propagation speed respectively. The method does so by automatically correcting for the damping in the transient phase and for the propagation speed in the steady state phase. Convergence of optimal order is proven in L2(H1)-norm, independent of the derivatives of the coefficients. We present numerical examples that confirm the theoretical findings.
Management of financial and economic security of critical infrastructure objects in the conditions of risks of quarantine restrictions: strategic and personnel aspects
Authors: Zachosova Nataliia , Kutsenko Dmytro , Koval Oleksii , Kovalenko Andrii
Published: May 2021

The purpose of the study was to develop theoretical and methodological background and to make practical offers for solving the problem of financial and economic security management of critical infrastructure in terms of personnel and strategic aspects. The list of reasons and circumstances of necessity of maintenance of financial and economic security of objects of critical infrastructure and its management is established. The definition of financial and economic security of a critical infrastructure object is offered. The peculiarities of the interpretation of the concept of financial and economic security for the needs of critical infrastructure are summarized. Two levels of financial and economic security management of critical infrastructure objects are distinguished – state (external) level and internal level – and an explanation of the differences in financial and economic security management at each of them is provided. The risks caused by quarantine restrictions for the state of financial and economic security of critical infrastructure objects have been identified. As a main result of the study the TARGET model for strategic management of financial and economic security of critical infrastructure objects is proposed. Practical value of the proposed in the study TARGET model for strategic management of financial and economic security of critical infrastructure objects – it will be the basis for developing strategic documents for stabilizing and further developing and maintaining high functionality of critical infrastructure of Ukraine. As an additional result of the study proposals on the basics of personnel policy formation for the need to ensure financial and economic security of critical infrastructure objects in a global pandemic and quarantine restrictions are made. The novelty of proposed personnel policy is in a fact that it contains such modern components as staff training; employee incentives; overcoming resistance to change; staff involvement in solving various issues; staff discipline; leadership, partnership and teamwork; time management and self-management; staff safety, staff digital literacy.
Assessment of factors influencing the stability of Ukrainian export based on the fractal analysis
Authors: Kainara Dmytro , Kaliuzhna Iuliia
Published: May 2021

The article considered the assessment of the sustainability of the export flow of Ukraine. It was determined that the markets of Slovakia, the Russian Federation, Germany, Poland and Lithuania possess longterm memory. Also, the main factors that affect the sustainability of export have been analyzed. Among cultural factors, a weak correlation was demonstrated by Long Term Orientation, Indulgence and Power Distance according to the Geert Hofstede method. At the same time, the cultural patterns according to the S. H. Schwartz method did not show a correlation with the long-term memory of product export. On the stability of the export flow, the role of the linguistic distance and the factor of the diaspora presence have been assessed. It was proved that the gravitational effect has the greatest impact on the stability of export; Power Distance, linguistic distance and the factor of the diaspora presence have the negligible impact as well.
Marketing forecasting based on Big Data information
Authors: Ivanov Sergey , Ivanov Mykola
Published: May 2021

In the paper discusses the use of big data as a tool to increase data transfer speed while providing access to multidimensional data in the process of forecasting product sales in the market. In this paper discusses modern big data tools that use the MapReduce model. The big data presented in this article is a single, centralized source of information across your entire domain. In the paper also proposes the structure of a marketing analytics system that includes many databases in which transactions are processed in real time. For marketing forecasting of multidimensional data in Matlab, a neural network is considered and built. For training and building a network, it is proposed to construct a matrix of input data for presentation in a neural network and a matrix of target data that determine the output statistical information. Input and output data in the neural network is presented in the form of a 5x10 matrix, which represents static information about 10 products for five days of the week. The application of the Levenberg-Marquardt algorithm for training a neural network is considered. The results of the neural network training process in Matlab are also presented. The obtained forecasting results are given, which allows us to conclude about the advantages of a neural network in multivariate forecasting in real time.
The development of energy consumption forecasting model for a metallurgical enterprise
Authors: Bakurova Anna , Yus’kiv Olesia , Shyrokorad Dima , Tereschenko Elina , Riabenko Anton
Published: May 2021

An up-to-date issue of a modern metallurgical enterprise is the increase of its energy efficiency, which is related, first of all, with energy saving. Therefore, the purpose of this paper is to develop a model for forecasting the metallurgical enterprise power system consumption and its experimental testing based on the PJSC “Electrometallurgical plant “Dniprospetsstal” named after A. M. Kuzmin data. In order to build a forecasting model, a neural network apparatus in the MATLAB system was used and it was done in two stages. At the first stage, as an experiments series result, the optimal architecture and algorithm of neural network training were determined. In the second stage, the dependence of the modeling graphs load error from the influence of daily consumption graphs is identified. The MATLAB software package has been adapted for the needs of “Dniprospetsstal” named after A. M. Kuzmin. Neural networks designed in this way can be used to solve applied issues of electrometallurgy, in particular, the long-term estimation of time series of hourly power for the 24 hours ahead.
Optimization models for the use of agricultural aviation when performing chemical works
Authors: Saparbayev Abdizhapar , Makulova Aiymzhan , Kaziyeva Assel , Klyshbayeva Zaure , Saparbayeva Elmira
Published: May 2021

The article discusses the optimization models for the use of agricultural aviation when performing chemical works. The question of determining the need of vehicles for the maintenance of agricultural work is of great national economic importance. Aviachemical method is firmly established in the technology of cultivation of grain crops. First of all, this is due to the fact that, compared to ground-based methods, the aero-chemical method of chemization of agriculture has a number of technical and economic advantages, including a higher quality and uniformity of chemicals, eliminates mechanical damage to crops, and less dependence on the physical and geographical conditions of the area, allows to obtain significant savings of chemicals and fuel, reduces the time of work.
Improving the innovative development management of Zaporizhzhia region’s industrial complex
Authors: Pulina Tetiana , Shmygol Nadiia , Narivs’kyi Oleksii , Łuczka Władysława , Shmygol Yeugeniia
Published: May 2021

The paper carries out the strategic analysis of innovative possibilities of Zaporizhzhia region’s industrial complex and investigates the indicators of innovative activity of industrial complexes of Zaporizhzhia region and Ukraine by Harrington’s generalized desirability function. The evaluation results prove the “good” ability and readiness of the industrial complex of Zaporizhzhia region and Ukraine to carry out effective innovation activities. However, according to the comparative assessment of the innovative activity of Zaporizhzhia region’s industrial complex and Ukraine’s one, Zaporizhzhia region’s industrial complex is found to lag 9.2% behind Ukraine’s. A cluster development strategy is suggested to improve the innovative development management of Zaporizhzhia region’s industrial complex.
Multicriteria optimization of oil and gas enterprises financial stability using the genetic algorithm method
Authors: Shkvaryliuk Marta , Horal Liliana , Khvostina Inesa , Yashcheritsyna Natalia , Shiyko Vira
Published: May 2021

The article considers the problem of optimizing the financial condition of oil and gas companies. The offered methods of optimization of a financial condition by scientists from different countries are investigated. It is determined that the financial condition of the enterprise depends on the effectiveness of the risk management system of enterprises. It is proved that the enterprises of the oil and gas complex need to develop a system for risk management to ensure the appropriate financial condition. The financial condition is estimated according to the system of certain financial indicators, the integrated indicator of financial condition assessment is constructed using the method of taxonomy. According to the results of the calculation of the integrated indicator, it is concluded that this indicator does not have a stable trend. On the basis of the conducted researches it is offered to carry out optimization of an integral indicator of a financial condition with use of genetic algorithm in the Matlab environment. Based on the obtained results, recommendations of the management of the researched enterprises on increase of management efficiency are given.
Analysis of monetary regulation of the investment sphere in the Republic of Belarus
Authors: Zelenkevich Marina , Bandarenka Natallia
Published: May 2021

The purpose of the article is to substantiate the possibility and necessity of the central bank’s monetary policy to stimulate investment and economic growth for developing economies on the example of the investment sphere and monetary policy in Belarus. It was determined that the impact of monetary regulation on investment and economic growth is achieved in the course of the central bank’s activities to maintain indicators of price and financial stability which reflect favourable conditions for investment. Price stability is achieved through the implementation of various central bank strategies such as targeting the exchange rate, money supply and inflation. These strategies are defined as the objectives of monetary policy. The article discusses the advantages of monetary regulation in comparison with fiscal regulation, and also contains an analysis of its practical implementation in the Republic of Belarus in the period 2000–2019. As a result of the study the economic and financial results of the strategies applied at different stages were determined, their consequences for the economy were substantiated, and the strategies that best affect the financial and economic indicators in the country were identified. For countries with a small open economy which includes Belarus maintaining price and financial stability is complemented by a set of measures to reduce the devaluation expectations of market entities and create a favorable foreign economic environment.
Computational method for risk assessment of regional socio-economic development
Authors: Pursky Oleg , Dubovyk Tatiana , Buchatska Iryna , Lutsenko Iryna , Danylchuk Hanna
Published: May 2021

In this study, we present the computational method for risk assessment of the socio-economic development of regions. An attempt has been made to develop a method for the determination of integral risk indicators of socio-economic development based on the joint use of the methods of factor analysis and expert evaluation. This approach has increased the reliability of the calculations and made it possible to analyze the influence of socio-economic indicators on the risk level of socio-economic development. The integral risk indicator shows the effect of the inconsistency in the level of factor provision on the socio-economic development of the j-th region (district) in comparison with the general situation in the country (regions). The closer the value of integral risk indicator is to 1, the higher the level of risk in this region. Using Kyiv region districts as an example, the process of risk assessment for regional socio-economic development has been considered. The results obtained in this investigation demonstrate that the presented computational method solves the problem of formalization of risk assessment for the socio-economic development of regions.
A forecasting the consumer price index using time series model
Authors: Shinkarenko Volodymyr , Hostryk Alexey , Shynkarenko Larysa , Dolinskyi Leonid
Published: May 2021

This article examines the behavior of the consumer price index in Ukraine for the period from January 2010 to September 2020. The characteristics of the initial time series, the analysis of autocorrelation functions made it possible to reveal the tendency of their development and the presence of annual seasonality. To model the behavior of the consumer price index and forecast for the next months, two types of models were used: the additive ARIMA*ARIMAS model, better known as the model of Box-Jenkins and the exponential smoothing model with the seasonality estimate of Holt-Winters. As a result of using the STATISTICA package, the most adequate models were built, reflecting the monthly dynamics of the consumer price index in Ukraine. The inflation forecast was carried out on the basis of the Holt-Winters model, which has a minimum error.
Monitoring the quality of e-learning implementation in educational institutions
Authors: Habrusiev Valerii , Tereshchuk Hryhoriy , Tsidylo Ivan , Martyniuk Serhii , Kulyanda Olena
Published: May 2021

The article analyzes some aspects of quality control and efficiency of electronic educational and methodological complexes of educational disciplines usage in the educational process. Analysis of the implementation of e-learning and of user work allows to build a model of student’s work, identify the disadvantages of both organizational and technological plan and take timely steps to eliminate them. The solution to this problem should include a comprehensive approach to ensure an objective result. Google Analytics tools, Moodle Learning Management System (LMS) tools, the teacher’s surveys to monitor the quality of e-learning in an institution proves its efficiency and allows to see the full advantages and disadvantages of ongoing e-learning in an institution, plan and implement further development and improving e-learning. The analysis of the effectiveness of e-courses usage should be carried out in a comprehensive manner, using the monitoring tools of the educational process adopted in the educational institution. Such as surveys for teachers and students, analysis of success, etc. The specifics of e-learning, the Moodle LMS tools and third-party services for collecting statistics and analyzing user activity in the LMS should be taken into account.
Analysis, forecasting, and management of indicators of the forest industry of the region
Authors: Ovchynikova Olena , Dupliak Olha
Published: May 2021

The article considers the theoretical and methodological foundations of forest industry research. The analysis of indicators of the forest industry of Khmelnytskyi region and Ukraine is carried out. To do this, a list of indicators and methods of their collection for the study of the forest industry. Since the state of ecology and forestry in Ukraine is not in the best condition, it is objectively necessary to use methods of economic and mathematical modeling of forest management, which would take into account environmental, economic and social factors, which will quickly implement the principles of sustainable development in forest management. The dynamics of forestry indicators is estimated. Models of dynamics of indicators of forest branch are developed; the received forecasts are analyzed and recommendations on forest management in the region are given. It is determined that with an increase in investment in the development of the forest industry by 1%, we can expect an increase in the volume of the logging market by 524632.5 points. The results of the study can serve as a basis for management decisions on the management of forestry indicators.
The problem of estimating the sustainable development of the integrated technogenic industrial system
Authors: Ramazanov Sultan , Honcharenko Oleksandr
Published: May 2021

The purpose of this work is to research the problem of sustainability of the integrated technogenic system in an innovative economy and “Industry 4.0”. The paper deals with the methods of assessing the level of sustainable development of the integrated technogenic system as a family of models for eco-economic and socio-humanitarian management of technogenic economic objects. The economic approach to modeling a sustainable development is considered, which consists of the optimal use of limited resources and applies natural, energy and resource-saving technologies to generate aggregate income. At the same time, the transition to the information society leads to a change in the structure of aggregate capital in favor of human, increasing intangible flows, flows of information and intellectual property. The problem of sustainable development through 7 main assets (capitals) that support the viability of socioenvironmental and economic systems is considered. The concept of sustainable development, the system of global dimensions of sustainable development and the level of sustainable development are defined. The presented methodology for the formation of humanitarian component of technogenic regional production uses available statistic data. Application of these methods will improve efficiency of managerial decisions in the technogenic regional production management, maximize benefits from the use of innovations and define strategic innovative directions for regional development.
Primary Graft Dysfunction
Authors: Natalini Jake G. , Diamond Joshua M.
Published: May 2021

Primary graft dysfunction (PGD) is a form of acute lung injury after transplantation characterized by hypoxemia and the development of alveolar infiltrates on chest radiograph that occurs within 72 hours of reperfusion. PGD is among the most common early complications following lung transplantation and significantly contributes to increased short-term morbidity and mortality. In addition, severe PGD has been associated with higher 90-day and 1-year mortality rates compared with absent or less severe PGD and is a significant risk factor for the subsequent development of chronic lung allograft dysfunction. The International Society for Heart and Lung Transplantation released updated consensus guidelines in 2017, defining grade 3 PGD, the most severe form, by the presence of alveolar infiltrates and a ratio of PaO2:FiO2 less than 200. Multiple donor-related, recipient-related, and perioperative risk factors for PGD have been identified, many of which are potentially modifiable. Consistently identified risk factors include donor tobacco and alcohol use; increased recipient body mass index; recipient history of pulmonary hypertension, sarcoidosis, or pulmonary fibrosis; single lung transplantation; and use of cardiopulmonary bypass, among others. Several cellular pathways have been implicated in the pathogenesis of PGD, thus presenting several possible therapeutic targets for preventing and treating PGD. Notably, use of ex vivo lung perfusion (EVLP) has become more widespread and offers a potential platform to safely investigate novel PGD treatments while expanding the lung donor pool. Even in the presence of significantly prolonged ischemic times, EVLP has not been associated with an increased risk for PGD.
Extracorporeal Membrane Oxygenation as a Bridge to Lung Transplant
Authors: Stokes John W. , Gannon Whitney D. , Bacchetta Matthew
Published: May 2021

Extracorporeal membrane oxygenation (ECMO) is a cardiopulmonary technology capable of supporting cardiac and respiratory function in the presence of end-stage lung disease. Initial experiences using ECMO as a bridge to lung transplant (ECMO-BTLT) were characterized by high rates of ECMO-associated complications and poor posttransplant outcomes. More recently, ECMO-BTLT has garnered success in preserving patients' physiologic condition and candidacy prior to lung transplant due to technological advances and improved management. Despite recent growth, clinical practice surrounding use of ECMO-BTLT remains variable, with little data to inform optimal patient selection and management. Although many questions remain, the use of ECMO-BTLT has shown promising outcomes suggesting that ECMO-BTLT can be an effective strategy to ensure that complex and rapidly decompensating patients with end-stage lung disease can be safely transplanted with good outcomes. Further studies are needed to refine and inform practice patterns, management, and lung allocation in this high-risk and fragile patient population.
Community-Acquired Respiratory Viruses Post–Lung Transplant
Authors: Sweet Stuart C.
Published: May 2021

Survival in lung transplant recipients (LTRs) lags behind heart, liver, and kidney transplant, in part due to the direct and indirect effects of infection. LTRs have increased susceptibility to infection due to the combination of a graft continually exposed to the outside world, multiple mechanisms for impaired mucus clearance, and immunosuppression. Community-acquired respiratory viral infections (CARVs) are common in LTRs. Picornaviruses have roughly 40% cumulative incidence followed by respiratory syncytial virus and coronaviruses. Although single-center retrospective and prospective series implicate CARV in rejection and mortality, conclusive evidence for and well-defined mechanistic links to long-term outcome are lacking. Treatment of viral infections can be challenging except for influenza. Future studies are needed to develop better treatments and clarify the links between CARV and long-term outcomes.