bluuebunny/crossref_metadata_2025 huggingface dataset:
RESEARCH PROPERTIES SETS OF EFFECTIVE CRITERIA VALUES IN THE OPTIMIZATION PROBLEM
ENGINEERING NETWORK
Authors: Bezklubenko Iryna , Getun Galyna , Balina Olena , Butsenko Yurii
Published: February 2023

The problem of choosing a project for a developing engineering network is
considered. A mathematical model of a developing engineering network, which even at the
design stage allows us to take into account the possibility of expanding or
reconstructing the system in case new customers are added to the target product, which
is a two-criteria block programming problem with separable criterion functions. In the
proposed mathematical model, the first criterion reflects the need to minimize financial
costs construction and operation of the network, in order to ensure portability of the
target product delivered at the time of designing. The second criterion expresses the
requirement of minimizing financial costs for the future development of the system in
the future from the achieved level, provided that the vector of the system’s development
is known before the engineering network design starts. Taking into account the criteria
preference vector, which allows you to take into account the inequality of both cost
criteria in the constructed mathematical model and makes it possible comparing criteria
of different orders makes it possible to replace the two-criterion optimization problem
of choosing a project of a developing engineering network with a single-criterion
mathematical programming problem without changing the set of solutions to the problem.
The properties of the set of effective vectors of criteria values, which arise when
solving a single-criteria optimization problem of choosing an engineering network
project variant with a variation of all possible values of the criteria preference
vector, have been formulated and investigated, which will make it possible to build
dialogue procedures, during the execution of which the approximation of the set of
values of the problem criteria will be carried out.
CLUSTER ELEMENTS TERRITORIAL ADMINISTRATION IN ORTHODOXMODERN
Authors: Tereschuk Mykola
Published: February 2023

This study is devoted to the proposed approach to the use of information
technologies, in particular, computer geometric modeling, to improve the efficiency of
management of complex socio-economic systems on the example of modern Orthodoxy. The
urgency of the chosen topic is due to the rapid return of a large number of people in
our country to eternal Christian values after many years of forced atheism. These facts
significantly contribute to the current intensive restoration of religious buildings,
the construction of new temples, the revival of monasteries, the improvement of places
of pilgrimage, the optimization of proper organizational and territorial church
structures, the implementation of spiritual-educational and other charitable activities.
Our days are characterized by global social changes, such as the widespread introduction
of market relations in all spheres of life, land, medical, educational reform,
decentralization of state power and more. The above features reveal the high dynamism in
the spiritual and material plan of the current stage of development of Ukraine, which is
significantly burdened by the COVID-19 pandemic, the military conflict with Russia and
other unfavourable factors. The main purpose of the publication is to highlight the
developed mathematical apparatus for the automated reproduction of the
organizational-territorial cluster structures of Orthodoxy. This ensures, on the basis
of the proposed complex geometric models, the improvement of church governance, for
example, regarding the definition of rational territorial boundaries of parishes and
dioceses, the determining of the need for their unification, liquidation or the
formation of new ones, optimization of the location of temples, chapels, educational
institutions, etc. The considered approach allows to save material, financial, human and
natural resources, to reduce terms and to improve the quality of acceptance of various
decisions. The latter applies to a large number of objects and processes, their various
properties. The article also outlines promising directions for further scientific
research on the selected topic.
Heritability and Genetic Correlations of Growth Traits Among Inbred Population of Nigerian Chickens
Authors: Ohagenyi Ifemma , Okochi Desire A.
Published: February 2023

This study was carried out to estimate heritability for body weight, as well as the genetic correlations between these traits of the Nigerian inbred Local Chicken (NILC) reared at the University of Nigeria, Nsukka (UNN). The study lasted for 2 months, and the heritability and genetic correlations of the traits were estimated using Animal Model Design of the SAS 2004 statistical procedure. The direct heritability for body weights of NILC were 0.51, 0.76, 0.89, 0.22 and 0.20 at weeks 1, 2, 4, 6 and 8. In the present study, high heritability estimates (0.51, 0.76 and 0.89) were recorded for weeks 1, 2 and 4, respectively, but medium for weeks 6 and 8. Genetic correlations between 1BW and 4BW, 8BW, 4BL, 8BL, 4SL, 8SL, 4CG, 8CG were 0.984, 0.763, 0.953, 0.735 0.72, -0.952, 0.989 and -0.481, respectively. Estimates for genetic correlations ranged from -0.481 to 0.989 among the traits considered in this study. High and positive genetic correlations were recorded for 1BW and other traits except for 8SL and 8CG, which had negative genetic correlations. High estimates of heritability found in the present study indicate that additive genetic variances exist for these traits. Selection for body weight at 1 or 2 weeks of age, therefore, is likely to result in a genetic gain in the NILC. Furthermore, the high and positive genetic correlations observed indicate that selection for one trait will result in a correlated response on the other traits compared in the study.
Modern German language and culture teacher professional portrait
Authors: Sviridyuk V.
Published: February 2023

The article focuses on the professional and creative qualities of a German language and culture teacher. A theoretical analysis of the literature on the issue of the competence-based approach to the future specialists’ training has been carried out. The article deals with the psychological and pedagogical aspect of the teacher's communicative competence. Purpose. The paper defines the main pedagogical qualities of a teacher in the organization of the educational process and the observance of national and cultural norms for conducting a dialogue. Methods. On the basis of the analyzed scientific literature, the professional qualities of the teacher, which he/she has to possess, are defined. Intercultural competence is illustrated, its components that make up the content of the formation of intercultural foreign language communicative competence arenoted. Results. The metacognitive, cognitive, creative and communicative qualities of the teacher are identified in the context of the pedagogical activities implementation in order to organize intercultural communication. Conclusion. Thus, the article focuses on the competence of a German language teacher, where intercultural competence forms the basis for the formation of intercultural communicative competence. The author directs his opinion on the national and cultural characteristics of the teacher as a mediator in the educational process on the verge of at least two different linguistic cultures. It is concluded that the formation of foreign language skills and abilities of intercultural communication begins at the stage of interpersonal idioethnic communication with a teacher.
Educational and entertainment video (comic episodes of performance genre of manzai) as a modern method of Japanese teaching
Authors: Hrykun Yu.
Published: February 2023

One of the popular and efficient technologies of teaching foreign languages and cultures in recent time is edutainment technology. It’s been considered as the one which brings positive results having as its elements learning, media and play / entertainment. The purpose of this article is to research educational and entertainment videos of the Japanese comic performance genre of manzai as an edutainment technology which effectively helps forming communicative and also linguo-sociocultural competence among students of the beginner level particularly majoring in translation. Also our target is toshow the main features of mentioned technology and its merits among other ones. Methods. Various researches on technology of edutainment have been overviewed to present its representative features. Results. In this research educational and entertainment video (comic episodes of the Japanese performance genre of manzai) has been analyzed from the point of view of its structure and linguistic peculiarities and evaluated as a considerable technology to present and to broaden vocabulary of the Japanese language in humoristic non-formal way which makes learning more efficient and interesting. It’s been also shown as a source to deepen the comprehension of mentality and communicative behavior of the Japanese which helps to form linguo-sociocultural competence. Conclusion. Having considered various merits of mentioned above technology we estimate it as the one which is warrant attention during the classes of the Japanese language at the beginner level in particular.
Research on the academic achievement of transcarpathian mobile students
Authors: Pallay K.
Published: February 2023

Academic achievement can be approached from several aspects. The first aspect is the achievement of students and educational institutions based on external and internal indicators. Previous research has shown that it is worth examining students' achievement in student mobility. Mobile students are more likely to succeed in their studies and find jobs. Purpose. The research aims to reveal the academic achievement of Transcarpathian students continuing their studies in Hungary. We examine where students studying abroad settle down after graduation: they either stay in Hungary, return home to Ukraine or utilise their knowledge in another country. We examined in which higher educations the former students continued their studies and which faculties they preferred as well as what differences and similarities can be observed in terms of achievement between students returning to Transcarpathia and students settling down in Hungary or abroad. Methods. During our research, an online self-completed questionnaire was applied. We used the snowball method to track down former students. 347 Transcarpathian mobile students filled out the questionnaire. The obtained data were analysed by SPSS 22 Program. Descriptive statistics were used during the analyses. Results It is most characteristic of students living in Hungary that they already wanted to acquire proper marketable knowledge when they decided to take advantage of student mobility. As a result, they tried to find a job in the Hungarian labour market. Their plans have not changed since university graduation. Conclusion. Our results suggest that the choice of major significantly influences the final settlement decision. Getting a jobwith a degree obtained in Hungary can face many obstacles for a well-qualified young person. This is especially true for prominent majors. In a city, a graduate has a much higher chance of finding a position according to his qualification.
Syllabus for Master Students “Methods of Teaching a Foreign Language” within “Methodology of Teaching a Foreign Language and Foreign Literature in Higher School”
Authors: Byrkun L.
Published: February 2023

Methods of teaching foreign languages in higher education is a basic discipline that is an integral part of the training of specialists at the educational qualification level “Master”, field of knowledge 035.04 Philology (Germanic languages and literatures (translation inclusive) for future professional activity. Work program for the discipline “Methods of teaching a foreign language // Methods of teaching a Foreign Language” within the course on “Methods of teaching a foreign language and foreign literature in higher education // Methodology of Teaching a Foreign Language and Foreign Literature in Higher School” was created for masters of the first year of study in the educational and scientific program “Modern English-language communication and translation and two Western European languages”. The purpose of the discipline is the formation ofmethodological competence with an emphasis on the balance of communicative and educational, educational, developmental, general educational, gnostic, organizational, constructive-planning and evaluative functions of the future teacher of a higher educational institution, which involves a reflexive understanding of their own experience of learning languages and the experience of their teaching, comprehensive orientation in modern theories of language learning and educational regulatory documents, critical analysis and evaluation of educational materials, holistic and fragmentary planning of a practical lesson in English, conducting a practical lesson, as well as creating English-language and Ukrainian-language texts of a scientific and educational nature, including scientific articles and annotations to them and writing work programs for disciplines. The program also focuses on academic integrity and means of preventing plagiarism.
Quality assurance of foreign language study programmes: annotated bibliography
Authors: Plotnikov Y. , Zenia L.
Published: February 2023

This paper aims to investigate quality assurance research in the recent years. The article systematically reviews the key studies conducted and published from 2012 to 2021 to reveal current trends and to show best research practices. All the analyzed publications represent the leading scientific journals in the field of linguistics. The bibliography might be useful for curriculum designers and educational managers.
A Systematic Literature Review Protocol on Climate Change Perception Models
Authors:   Department of Emergency Nursing, School of Nursing and Midwifery, Semnan University of Medical Sciences, Semnan, Iran., Amanat Nasir , Valinejadi Ali ,   Social Determinants of Health Research Center, Semnan University of Medical Sciences, Semnan, Iran., Mehrifar Younes ,   Department of Occupational Health, School of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran., Poursadeqiyan Mohsen ,   Social Determinants of Health Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
Published: February 2023

The impacts of climate change can have many facets which are not directly felt. Climate change causes crucial political, economic, and social problems in our world. Inadequate public perceptions of climate change have resulted in little global response to climate change. This systematic review protocol examines existing perception models. First, we searched 3 databases, including PubMed, Scopus, and Web of Science, as well as Google Scholar as a search engine for all documents on the topic words “climate change”, “risk perception”, and “model” and their synonyms in medical subject headings (MESH). All types of journal articles were assessed. No date and language limitations were applied. The articles were evaluated by two independent persons. The results show that in recent years, the number of studies on climate risk perception across countries has increased compared to the total number of scientific publications. In addition, the number of climate change risk perceptions was higher than in other models. Our findings showed that until now, no systematic review has been conducted for models, features, and components of climate change perception. This is the first comprehensive study to assess climate change risk perception models (CCRPM). This study presents climate change perception models.
Adverse Effects Induced by Long-term Use of Hand Sanitizers Among Health Staff During COVID-19
Authors:   Center of Excellence for Occupational Health, Research Center for Health Sciences, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran., Poormohammadi Ali , Bashirian Saeid ,   Department of Public Health, School of Health, Social Determinants of Health Research Center, Health Sciences & Technology Research Institute, Hamadan University of Medical Sciences, Hamadan, Iran., Khazaei Salman ,   Health Sciences Research Center, Health Sciences & Technology Research Institute, Hamadan University of Medical Sciences, Hamdan, Iran., Solgi Reza ,   Legal Medicine Research Center, Legal Medicine Organization of Iran, Tehran, Iran., Soltanian Ali Reza ,   Department of Biostatistics, School of Health, Modeling of Noncommunicable Diseases Research Center, Health Sciences & Technology Research Institute, Hamadan University of Medical Sciences, Hamadan, Iran., Sobhan Mohammadreza ,   Psoriasis Research Center, Department of Dermatology, Sina Hospital, Hamadan University of Medical Sciences, Hamadan, Iran., Mehri Fereshteh ,   Center of Excellence for Occupational Health, Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
Published: February 2023

Background: The present study examines the various complications and impurities of alcoholbased hand sanitizers during COVID-19 among health workers in Hamadan City, Iran. Methods: This cross-sectional study was conducted on 178 healthcare workers in different hospitals affiliated with the Hamadan University of Medical Sciences. The inclusion criteria included health personnel working in hospitals dedicated to the care and treatment of patients with COVID-19 in Hamadan City. A researcher-made questionnaire was used to collect data. Afterward, to evaluate the quality and impurities of the alcohol-based hand sanitizers used by healthcare workers, various samples were collected and analyzed using gas chromatographymass spectrometry (GC-MS). Stata software version 14-2 was used to analyze the data. Results: The highest and the lowest percentages of ethanol in washing solutions and gels were 68.24% and 60.71%, respectively. Among them, the frequency of using gel, solution, and spray was 93.82%, 42.13%, and 49.44%, respectively. Skin and breathing sensitivity were the most common symptoms in 44.38% and 27.68% of the health workers, respectively. Skin dryness (50%) and sore throat (25.84%) were the most common complications observed in skin and respiratory symptoms among health workers, respectively. Conclusion: Our findings implied that the prevalence of various complications related to the use of alcohol-based hand sanitizers is high among health workers, which highlights the role of using appropriate alcohol-based hand rubs with suitable formulations in the hospital environment to reduce the adverse health effects caused by their long-term and extensive use among health workers.
Evaluation of a Nanohybrid Membrane (PSF/ZnO) Efficiency in Natural Organic Matter Removal From Water
Authors:   Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran., Rezaee Reza , Rahimipour Reza ,   Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran., Maleki Afshin ,   Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran., Safari Mahdi ,   Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran., Shahmoradi Behzad ,   Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran., Jafari Ali ,   Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran., Mousavi Seyyed Abbas ,   Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi, Ave., Tehran, Iran.
Published: February 2023

Background: Natural organic matter (NOM) in drinking water sources has always been regarded as a precursor for the formation of trihalomethanes (THMs), haloacetic acids (HAAs), and carcinogenic properties. This study aimed to fabricate and characterize a nanohybrid ultrafiltration membrane (PSF/ZnO) to evaluate its efficiency in NOM removal from water. Methods: Nanohybrid membranes with ratios of 0, 1, 2, 3 and 4% w/w of ZnO nanoparticles (NPs) were fabricated using the phase inversion method and characterized by the contact angle, AFM, FTIR, and SEM analyses. In this study, the effects of initial humic acid (HA) concentration, operating pressure, pH, and filtration time were examined on the HA removal efficiency and pure water flux through the membrane. Results: The results showed that addition of the ZnO NPs to the PSF membrane reduced the contact angle on the PSF/ZnO nanohybrid membrane’s surface. According to FE-SEM images, increasing the ZnO concentration changed the porous structure of the membranes from a spongy, teardrop shape to a finger-like channel structure. The FTIR analysis revealed an increase in the hydrophilicity of the membrane due to the presence of hydroxyl functional groups in ZnO. AFM images indicated an increase in the surface roughness of nanoparticle-containing membranes. It was found that an increase in the concentration of the ZnO NPs (0-4% w/w) increased HA removal efficiency (43.63-83.4%). Conclusion: This study demonstrated that the use of the PSF/ZnO nanohybrid membranes increased HA removal efficiency and pure water flux passing through the membrane.
Parabolic Boundary Value Problems in a Piecewise Homogeneous Wedge-Shaped Cylindrical-Circular Layer with a Cavity
Authors:   Higher Educational Institution ", Hromyk Andrii ,   Podillia State University", Konet Ivan ,   Lesya Ukrainka Volyn National University, Pylypiuk Tetiana ,   Kamianets-Podіlskyi Ivan Ohiienko National University
Published: February 2023

The unique exact analytical solutions of parabolic boundary value prob-lems of mathematical physics in piecewise homogeneous by the radial variable zwedge-shaped by the angular variable cylindrical-circular layer with a cavity were constructed at first time by the method of classical integral and hybrid in-tegral transforms in combination with the method of main solutions (matrices of influence and Green matrices) in the proposed article.The cases of assigning on the verge of the wedge the boundary conditions of the 1st kind (Dirichlet) and the 2nd kind (Neumann) and their possible com-binations (Dirichlet—Neumann, Neumann—Dirichlet) are considered.Finite integral Fourier transform by an angular variable, a finite inte-gral Fourier transform on the Cartesian segment by an applicative variable and a hybrid integral transform of the Weber type on the polar axis with npoints of conjugation by a radial variable were used to construct solutions of investigated boundary value problems.The consistent application of integral transforms by geometric variables al-lows us to reduce the three-dimensional initial boundary-value problems of conjugation to the Cauchy problem for a regular linear inhomogeneous 1st or-der differential equation whose unique solution iswritten in a closed form.The consistent application of inverse integral transforms to the ob-tained solution in the space of images restores the solutions of the consid-ered parabolic boundary value problems through their integral image in an explicit formin the space of the originals.At the same time, the main solutions to the problems were obtained in an explicit form.
Seymour's Verteces-Weighted Conjecture
Authors:   ", Dynych Alona ,   Kamyants-Podilskyi Vocational College",   of the “Kamianets-Podilskyi State Institute", Zelenskiy Oleksiy ,   Kamianets-Podіlskyi Ivan Ohiienko National University, Darmosiuk Valentyna ,   V.O. Sukhomlynskyi Mykolaiv National University
Published: February 2023

Seymour's conjecture is one of the most famous unsolved mathematical problems in graph theory, which was formulated by Paul Seymour in 1990. This problem is also known as the «second neighborhood problem». A directed graph models a social network in which no two people knoweach other at the same time. This conjecture states that there will be at least one person for whom acquaintances of acquaintances will be no less than ac-quaintances. Definitions and basic theorems of graph theory are described in [1-3]. For an arbitrary graph, Seymour's hypothesis remains unsolved, but there are already proofs for partial cases and for some types of graphs, which are given in [4-6].Seacrest Tyler [5] investigated Seymour's conjecture for graphs with weighted arcs.In [6] showed that every simple digraph without loops or digons con-tains a vertexvfor which the second neighborhood is greater than or equal to the first multiplied by a certain constant.In [7] provided sufficient conditions under which there must exist some vV(D), as wellas examine properties of a minimal graph which does not have such a vertex. We show that if one such graph exists, then there exist in-finitely many strongly-connected graphs having no such vertex.The relevance of the chosen research topic is determined by the rapid pace of development of modern graph theory, which is associated with the expansion of its scope of use: business, logistics, tourism and, most im-portantly, modeling of various networks. One extension of the conjecture is to consider vertex-weighted di-graphs. In this paper we introduce a version of the conjecture for vertex-weighted digraphs and proved that the Seymour conjecture is equivalent to conjecture for vertex-weighted digraphs.
Simulation of the Percolation Behavior of the Properties of Polymer Nanocomposites Filled with Carbon Nanotubes
Authors:   Petro Mohyla Black Sea National University, Lysenkov Eduard , Klepko Valeriy ,   Institute of Macromolecular Chemistry NAS of Ukraine
Published: February 2023

The paper considers the application of the scaling approach of the percola-tion theory to describe the step-like change in electrical and thermal conductivi-ty of polymer nanocomposites containing carbon nanotubes. In connection with the use of nano-sized fillers for the creation of polymer composite materials, the problem of mathematical description of the behavior of the properties of such systems at critical filling has arisen. The increasing difficulty of describing a sudden change in properties is due to the fact that the described phenomena, due to the fluctuating processes of aggregation of nanotubes and the formation of an infinite cluster that permeates the entire volume of the material, are essen-tially critical, and therefore cannot be described by traditional mathematical models. In order to solve the problem considered in the publication, it is pro-posed to use universal scaling equations. In this case, an analogy is used be-tween the behavior of a ferromagnet in an external electric field and the behav-ior of the properties of a polymer nanocomposite with non-zero conductivity when it is critically filled with nanotubes. According to the above analogy, a number of equations are written to describe the percolation behavior of both electrical conductivity and thermal conductivity of polymer-filler systems. The results of simulation of real data for systems of this type are given and it is shown that the proposed equations allow to describe the step-like behavior of electrical and thermal conductivity of polymer-nanotube systems with high ac-curacy. The critical exponents of the scaling equations were determined and the behavior of the properties when these indices were varied was modeled. When describing the section of the graph before the percolation threshold, the increase in critical exponents leads to an increase in conductivity, while in the section after the percolation threshold, the increase in critical exponents leads to a de-crease in conductivity
Analysis of the Thermal Mode of an Electrically Conductive Tubular Element with a Thin External Electrically Conductive Coating Under the Action of an Unstable Electromagnetic Field
Authors:   Lviv Polytechnic National University, Musii Roman , Melnyk Nataliia ,   Lviv Polytechnic National University, Svidrak Inha ,   Lviv Polytechnic National University, Shynder Valentyn ,   Lviv Polytechnic National University
Published: February 2023

An electrically conductive tubular element with a thin external electri-cally conductive coating underthe action of an unsteady electromagnetic field of the radio frequency range is considered. To analyze the thermal re-gime, the initial-boundary problem of electrodynamics for a two-layer conductive non-ferromagnetic hollow cylinder under the action of an ex-ternal non-stationary electromagnetic field is formulated. The electromag-netic field is given by the values of the axial component of the magnetic field intensity vector on the inner and outer surfaces of the cylinder. To construct the general solution of the formulated initial-boundary value problem, a quadratic approximation of the key function (the axial compo-nent of the magnetic field intensity vector) along the radial coordinate in each constituent layer (base and cover) of the hollow cylinder was used. As a result, the original initial-boundary value problem for the key function is reduced to the Cauchy problem in terms of the time variable for the charac-teristics of the key function integral over the radial coordinate. The coeffi-cients of the approximation polynomials are presented through the integral characteristics of the key function and its given values on the inner and outer surfaces of the cylinder as a function of time. The solution of the Cauchy problem is obtained using the integral Laplacetransform. Expres-sions of the key function in each component layer of the cylinder are rec-orded in the form of quadratic polynomials, the coefficients of which are convolutions of functions describing the given limit values of the key func-tion on the inner and outer surfaces of the cylinder and homogeneous solu-tions of the Cauchy problem on integral characteristics. Expressions of the key function and Joule heat in the base and coating of the considered tubu-lar element under the action of an unsteady electromagnetic field in the mode with a pulsed modulating signal were obtained on the basis of gen-eral solutions for homogeneous non-stationary electromagnetic action. A computer analysis of the change in time and thickness of the constituent layers of this tubular element of the axial component of the vector of mag-netic field intensity and Joule heat was carried out.
SILICATE COATINGS FILLED WITH ZINC POWDER AND GRAPHENE NANOPLATES FOR STEEL CORROSION PROTECTION
Authors:   Research Institute for Physical-Chemical Problems of the Belarusian State University, Kobets A.V. , Audzeychyk I.A. ,   Belarusian State University, Chemical Department, Vorobyova T.N. ,   Research Institute for Physical-Chemical Problems of the Belarusian State University, Novikov U.P. ,   Scientific Practical Materials Research Centre of NAS of Belarus
Published: February 2023

The method is proposed to protect the carbon steel from corrosion by silicate coatings filled with powdered zinc and graphene nanoplates obtained by thermal splitting of graphite. The conditions for steel pre-treatment in an alkaline solution containing citrate ions and a nonionic surfactant, for the production of potassium liquid glass composition with the addition of zinc and graphene powders are selected. It is shown that coatings 70–80 µm thick, cured at room temperature for three days and containing 80–90 wt. % zinc, 7– 12 wt. % silicon dioxide and 0.2 wt. % carbon have the highest adhesion, water resistance and protective ability. The study of steel corrosion in 3.5% NaCl solution using methods of voltammetry and the dependence of open circuit potential on the test duration showed that silicate coatings filled with zinc and graphene provide cathodic polarization of steel and protect it from corrosion better than twice as thick coatings obtained by hot galvanizing. Graphene nanoplates enhance the contact of zinc particles with each other and with steel, promoting its cathodic polarization. Using scanning electron microscopy and X-ray spectral microanalysis, it has been shown that zinc corrosion products fill the pores of the near-surface layer of coatings, enhancing their protective ability.
SYNTHESIS OF AMINOMETHYL DERIVATIVES OF 3-MERCAPTO-2- HYDROXYPROPYL-1-ISOBUTYL ETHER AND THEIR STUDY AS PROTECTIVE ADDITIVES TO LUBRICANT OILS
Authors:   Acad. A.M. Guliyev Institute of Chemistry of Additives of the Ministry of Science and Education of Azerbaijan, Farzaliyev V.M. , Aliyev Sh.R. ,   Acad. A.M. Guliyev Institute of Chemistry of Additives of the Ministry of Science and Education of Azerbaijan, Babai R.M. ,   Acad. A.M. Guliyev Institute of Chemistry of Additives of the Ministry of Science and Education of Azerbaijan, Mammadova R.F. ,   Acad. A.M. Guliyev Institute of Chemistry of Additives of the Ministry of Science and Education of Azerbaijan, Guliyeva G.M. ,   Acad. A.M. Guliyev Institute of Chemistry of Additives of the Ministry of Science and Education of Azerbaijan, Mammadov A.M. ,   Acad. H. Mammadaliyev Institute of Petrochemical Processes of the Ministry of Science and Education of Azerbaijan, Eivazova G.Sh. ,   Acad. A.M. Guliyev Institute of Chemistry of Additives of the Ministry of Science and Education of Azerbaijan
Published: February 2023

The electrochemical corrosion prevention of engines and mechanisms is a task of great national, economic and defense importance. Lubricating oils commonly used in engineering do not have sufficient protective properties and are unable to effectively protect it from corrosion, both during operation and during short-term and long-term inactivity. One of the simplest and most rational ways to solve this problem is the use of lubricants containing effective protective (conservation) additives, which, without worsening the normal working properties of oils provide them conservation properties. By the action of 3-mercapto-2- hydroxypropyl-1-isobutyl ether, taken as a synthon, with secondary aliphatic and heterocyclic amines under the conditions of the Mannich reaction, a number of aminomethyl derivatives were synthesized. Aminomethyl derivatives of 3-mercapto-2-hydroxypropyl-1-isobutyl ether are dissolved well in oils and are stable during storage. The protective properties of the synthesized compounds were studied in M-12 oil. The best test results were obtained with 3-piperidinomethilthio-2-hydroxypropyl-1-isobutyl ether - at a concentration of 1% to the lubricating oil M-12, the corrosion of a steel plate in a humid chamber is 3%, in sea water after 24 hours – 5%, the corrosion of a steel plate under the action of a 0.1% acid solution HBr – 3,5%. These results are higher than those of the standard - industrial additive urea succinimide. (SIM).
EQUILIBRIUM CONDITIONS, ADSORPTION KINETICS OF THE GeO2-Cu(II)-NaCl SYSTEM ON DIAION CRBO2 ANIONITE AND DESORPTION MODE FROM SPENT COLUMNS
Authors:   Institute of Natural Resources, Nakhchivan branch of NASA, Jafarli M.M. , Abbasov A.D. ,   Institute of Natural Resources, Nakhchivan branch of NASA
Published: February 2023

The IR spectrum of DIAION CRBO2 anionite synthesized on the basis of a chelating agent, a styrene macromolecule with a glucamine functional group, has been studied. Sorption properties of anionite with respect to the germanium(IV)-copper(II)-Cl-system have been studied.. It is shown that the interaction of hydroxyl and amino groups of anionite with germanate and copper(II) ions is based on the formation of corresponding complexes. Various variants of sorption isotherms are constructed, calculation equations are proposed, which are followed by isotherms, the role of external, mixed and internal diffusion on the basis of the kinetic mechanism of processes is clarified.The desorption mode of the studied components from the treated anionite column was determined.
SYNTHESIS AND RADICAL POLYMERIZATION OF BENZAMIDMETACRYLATE
Authors:   Institute of Polymer Materials of the National Academy of Sciences of Azerbaijan, Vahabova V.A.
Published: February 2023

The data on the synthesis of the new monomer benzamidmetacrylate are presented in the article. Its composition and structure were established by physical and chemical methods of research. The regularities of radical homopolymerization reactions in mass and in benzene solution were studied with the aim of creating a new biocidal polymeric material for medical preparations. It is shown that polymerization under these conditions proceeds through the vinyl bond, without an induction period, at a constant initial rate without the formation of by-products, a monotonic increase in conversion up to 92% with the formation of a soluble polymer is observed. The composition and structure of the obtained polymer were established by elemental and spectral analyses. It showed that the polymer was characterized by a low toxicity at a significant biocidal activity towards E.coli and St.Aureus and that this polymer can be used in various fields, in particular as a biocidal preparation, a carrier of dosage forms in medicine. In addition, this polymer also exhibites optical translucency and can be used in optics.
Identificação dos sistemas preventivos de combate a incêndio em uma edificação educacional na cidade de Governador Valadares – Minas Gerais
Authors: Oliveira Bruno Santos de , Pereira Rafaela Alves , Reis Ângelo Antônio
Published: February 2023

Incêndio é a presença do fogo de forma descontrolada e em local indesejado. Como consequência, ele pode trazer prejuízos materiais e riscos físicos aos indivíduos que se encontram no local. Quando iniciado em uma edificação ou ambiente confinado traz, em muitas das vezes, consequências fatais, podendo provocar situações altamente prejudiciais à saúde. Dentre elas, pode-se citar: a fumaça, que dificulta a visão e a respiração; e o calor, que pode causar queimaduras e estresse térmico. O Processo de Prevenção de Incêndio e Pânico (PSCIP) é um projeto elaborado por profissionais habilitados (engenheiros civis e mecânicos, arquitetos e profissionais da área de engenharia de segurança do trabalho) e fiscalizado pelo Corpo de Bombeiros. Ele é indispensável em imóveis públicos ou privados, uma vez que objetiva proporcionar maior segurança aos usuários. É utilizado para diversos tipos de imóveis, tais como: residências, comércios e indústrias. O objetivo do presente trabalho é identificar os sistemas preventivos de combate a incêndio que compõem o PSCIP em uma edificação educacional privada em construção no município de Governador Valadares, Minas Gerais – MG. A metodologia consiste em um estudo de caso, onde foram discriminadas e elaboradas as etapas de um PSCIP para a edificação em questão. As técnicas de prevenção e proteção contra incêndio e pânico implementadas permitiram concluir que o projeto PSCIP desenvolvido no edifício estudado atende aos critérios técnicos normativos e às exigências legais do Corpo de Bombeiros do Estado de Minas Gerais.
THE NATURE AND TASKS OF FINANCIAL AND ECONOMIC ACTIVITIES OF ENTERPRISES IN THE RURAL AREAS
Authors:   Polissia National University, Davydchuk Sergii
Published: February 2023

To form a set of approaches to determine the nature and to introduce a list of tasks of financial and economic activity of enterprises (FEAE) in rural areas based on the comparative assessment of scientific research and highlighting entrepreneurial activity peculiarities in the rural areas of Ukraine. The study used the following methods: a literature analysis and comparative assessment (while studying scientific works on defining the nature of the term “financial and economic activity of an enterprise”); analysis and synthesis (while defining the peculiarities of financial and economic activity (FEA) of enterprises in rural areas and formulation of the author’s definition of the term and a set of FEAE in the rural area). The study used a set of scientific approaches (sixteen approaches) to reveal the main differences between the term “financial and economic activities of enterprises in rural areas”. The study has revealed the nature and tasks of financial and economic activity of enterprises in rural areas. The process of defining the nature of the term “financial and economic activity of enterprises” has been improved. Based on it and taking into account distinguishing peculiarities of FEAE in rural areas, the definition of the term’s nature “financial and economic activity of enterprises in rural areas” has been given. In addition, the study has revealed the term’s peculiarities according to the different scientific approaches and introduced a list of tasks on the FEA of agricultural enterprises. Peculiarities of financial and economic activity of enterprises in rural areas have been described.
CONCEPTUAL SUPPORT OF STRATEGIC PLANNING IN THE EDUCATION INDUSTRY
Authors:   International Scientific and Technical University named after Academician Yuri Bugay, Bazhenkov Ievgen
Published: February 2023

The article considered the conceptual support of strategic planning in the educational field. The concept of "Planning" was defined. The most significant factors determining the system of plans in the educational field were determined. Concepts that should be taken into account in planning processes in the educational field were listed. The importance of the planning system in the educational field was analyzed. Definitions covered by planning have been highlighted. The essence of planning was defined. Conceptual planning was considered. The concept of "strategic planning" was defined. The main directions on which the strategic planning of the educational sector is focused were determined. The factors that should be taken into account by the strategy in the educational sector were listed. The directions to which the intra-industry strategic planning is directed by its functional essence were determined. The importance of methodology in the study of strategic planning in the educational field was analyzed. The applied methods of strategic planning in the educational field were singled out and analyzed. Such methods include program-target, structural-functional, factor, indicative, balance, matrix methods and economic-mathematical modeling. The role of planning in the strategic management of the educational industry was defined. The concept of "Algorithm" and its role in the strategic management of the educational industry were considered. The main stages of strategic planning in the educational field were illustrated. The main tasks of strategic planning of the educational sector were listed. The basic principles of conceptual support for strategic planning of the educational sector were identified and analyzed. Such principles include legality, conceptuality, scientificity, systematicity, priority, transparency, complexity, segmentation, adaptability, variability, efficiency, competence, riskiness and responsibility. Options for dividing the principles of conceptual support of strategic planning of the educational sector into classification groups were considered. The importance of the basic principles of ensuring strategic planning of the educational sector was analyzed. Conclusions were made regarding the conceptual support of strategic planning in the educational field.
CONSIDERATION THE PECULIARITIES OF INTER-MARKET INTERACTIONS OF SUBJECTS IN MARKETING STRATEGIC MANAGEMENT
Authors:   Lutsk National Technical University, Voitovych Serhii , Serzhanov Vitaly ,   Uzhhorod National University, Kovalchuk Oleh ,   Lutsk National Technical University, Bukalo Nadiua ,   Lesya Ukrainka Volyn National University, Zagorujko Victor ,   Сollege of Lutsk National Technical University
Published: February 2023

This article considers the features of accounting for inter-market interactions of subjects in marketing strategic management of the development of the pharmaceutical industry. It is established that functionally, organizationally, technologically and marketing-oriented pharmaceutical market is closely connected with the processes of changes and functioning of subjects of related markets of the national economy. Theoretical research indicates the spread and application of systematic, integration, industry, situational, behavioural and marketing approaches to strategic management of an industry or its subjects today. It is proved that the strategic directions of development of the pharmaceutical market can be integration into the global market environment, access to cheap financial and investment resources, export of high-tech products, integration with related industries and their subjects. And the priority is the following marketing management development strategies, namely stabilization, intensive growth, integration development, diversification development, selectivity, market penetration, market development, followers and niches, differentiation, focus (concentration), service and image differentiation, and others depending on the type of products in this market. The formation and implementation of management development strategies should take into account trends in market functioning, economic relations, inter-market interactions of subjects, the level of cooperation and competition in relation to market subjects or related markets for the pharmaceutical industry: healthcare, spa, cosmetics, food, trade and physical culture and sports. The analytical study showed the differentiation of pharmaceutical products simultaneously in several markets, which explains the complexity of established economic relations and interactions for subjects of such markets, the diversity of such interactions, differentiation in terms of conditions, forms and methods of interaction of subjects of such markets. It is proved that the targets and directions of development of the pharmaceutical industry should be consistent with the capabilities and provision of all participants in market processes. Features of inter-market interactions of subjects are also manifested by the applied development strategies and marketing functional strategies of individual subjects of the pharmaceutical and related markets.