Expert Evaluation Method Research Articles

Construction of a Green-Comprehensive Evaluation System for Flotation Collectors

The evaluation of flotation reagents performs an important role in the selection and green application of reagents. The green indexes and effect indexes of flotation collectors were selected by data literature method, system analysis method, mathematical model method, and qualitative and quantitative analysis method, and the green evaluation system of flotation collectors, flotation effect evaluation system, and comprehensive evaluation system of flotation collectors were established. The normalization method and expert evaluation methods were adopted to obtain the grade classification of quantitative and qualitative indicators, respectively. The analytic hierarchy process (AHP) was used to determine the weight of secondary indicators and tertiary indicators of the evaluation system and the weight of indicators at a lower level. Applying the fuzzy comprehensive evaluation (FCE), the trapezoidal function is selected to determine the index affiliation, the index system score is calculated according to the weighted average principle, and finally, the established evaluation system is applied in an example. The example application shows that the comprehensive evaluation system of flotation collectors can make a comprehensive evaluation of collectors from the aspects of the greenness of reagent, flotation effect, and cost, and it has a strong target and practicality for collectors evaluation. The establishment of the system has a guiding significance for the selection and use of flotation collectors.

Value-meaningful conceptualisation of educational material in the process of foreign language teaching at the university: A hermeneutic approach

Introduction. One of the main tasks of teaching foreign languages for professional purposes is the formation of professional communicative competence of students. In this regard, it is important for university teachers to create conditions for students to master the methods and techniques of productive communication, not only from the perspective of language and culture, but also their future profession. In addition to the logical and rational aspect, it is important for pedagogical students to focus on the value and semantic significance of educational information, to deeply understand rather than to memorise information, to be emotionally “engaged” into knowledge, filling it with personal meaning, in order to avoid formal mastering of pedagogical profession. This is possible in the context of the value and semantic conceptualisation of acquired knowledge, which is carried out in the process of interpreting and structuring the content of training by the principle of linguistic concept.Aim. The present research aims to substantiate the content, methods, techniques and forms of value meaningful conceptualisation of educational material in the process of teaching foreign languages to pedagogical students.Methodology and research methods are based on the study of the value-semantic foundations of pedagogical practice with reference to the cultural-historical concept; on the phenomenological-hermeneutical approach, aimed at the actualisation of the interpretive potential of the teaching content; on the utilisation of the methods of theoretical analysis and synthesis, deduction and induction, comparison, modelling, and methods of inclusive observation. The empirical study was conducted during one academic year (from September 2020 to June 2021) in the course “English for Specific Purposes (ESP)” with 60 students of Pedagogical Education major of the University of Tyumen. To assess the results of the experimental work the following tools were used: L. Michelson’s test, free associative experiment, the method of expert evaluation based on the level scale developed by the authors.Results. The obtained data confirmed the effectiveness of structuring learning content according to the linguistic concept image. In the course of the final test of communicative and professional skills, most students demonstrated a confident command of the basics of professional communication in English. Compared to the initial stage of the study, students’ professional communication in English became more productive. Students’ statements were distinguished by their meaningfulness, structure. They used additional material from other fields of knowledge, emotional and value coloring in the form of metaphors, idioms, statements of famous teachers, precedent texts, the ability to improvise, etc.Scientific novelty. The authors didactically proved the productivity of the hermeneutic approach in the design of teaching foreign languages on the basis of structuring teaching material by the principle of linguistic concept, which is a mediating link between the scientific concept, on the one hand, and the individual consciousness and the subjective personal experience of students, on the other hand.Practical significance. The results of this study can be used by teachers in order to achieve a balance between technological and axiological aspects of learning and cognitive activities of students for mastering their pedagogical knowledge, professional and personal experience, which will ultimately contribute to the enhancement of professional training of future educators.

Baltijos šalių listinguojamų įmonių kapitalo struktūros sąsajų su vidiniais ir išoriniais veiksniais vertinimas ekonominio šoko metu

Capital structure’s formation and management decisions are one of the most important instruments to corporate financial management, enabling relevant business perspectives. The challenges of recent years and the increasing uncertainty in the economy make it necessary to assess how changes in capital structure are influenced by external and internal factors. Consequently, the purpose of the research is to evaluate the fluctuation trends in the capital structure of listed companies in the Baltic States and the correlation between the capital structure and internal and external factors. The object of the research is the financial data and correlation between the capital structure of listed companies in the Baltic States and external and internal factors. In order to achieve the research objective comparative, synthesis, regression, correlation and expert evaluation methods are applied. Furthermore, external financing of company investments generally decreased during the economic shock. Results of correlation analysis show that the capital structure of Baltic listed companies changes depending on the analysed period and the strongest impact on changes makes such internal factor as net profitability. On the basis of regression analysis it was determined that the leverage ratio was most affected by tax burden during the economic shock. This partly indicates that during the economic shock, the capital structure of Baltic listed companies was more influenced by external factors.

Opportunities to diversify the activities of wholesale and retail trade organizations in modern conditions

There are presents the results of a study of promising areas of diversification of the activities of wholesale and retail trade enterprises in the conditions of economic transformation. The purpose of this study is to identify and substantiate the possibilities of diversifying the activities of wholesale and retail companies in conditions of limited economic growth. The relevance of the research on the chosen problem is due to the need to find solutions to the problems of import substitution of enterprises that are interested in expanding their activities, including on the basis of diversification of activities. The methodology of the research is based on the analysis of modern theoretical provisions on the diversification of the activities of leading Russian scientists and economists. The main research methods used in the preparation of the materials of the article: system analysis, methods of expert evaluation, comparison, analogy, analysis of absolute and relative indicators, and others. Additional research methods include: traditional literature analysis, document analysis, design, synthesis, analysis of the data obtained. Within the framework of the article, the directions of diversification of the activities of wholesale and retail trade organizations are considered, as well as a multifactorial model is proposed that allows assessing the potential for increasing sales volumes based on diversification. The value of the conducted research lies in the consideration and detailed analysis of the state of the trade industry of the Russian Federation in the conditions of sanctions and restrictions. Also, this study shows development options in the field of diversification for wholesale and retail trade enterprises that depend directly on foreign supplies. The practical significance of this article is that the results of the study can be used by domestic enterprises specializing in the implementation of both wholesale and retail sales in the Russian market.

Selection of the means of auxiliary transportation facilities and adaptation of their parameters to specific operation conditions

Purpose. To improve selection methods of operation schedules as well as means of auxiliary transportation facilities involving adaptation of their parameters to the specific application environment while preparing new extraction pillars for coal mining. Methodology. The current methods for substantiating the operational parameters of the means of internal mine transport do not take into account the impact of mining-geological and technological factors, which change inadequately in space and time, on their productivity. The recommended method for selecting transport and technological schemes and increasing their adaptability in the real conditions of the mine environment is based on the comprehensive use of methods of expert evaluation of the operational indicators of the new generation of auxiliary transport means and modeling of the conditions of their interaction with arch support and side rocks at the stages of mining and their operation when preparing new mining pillars for cleaning mining. Findings. The expert evaluation concerning technological features of mining field preparation as well as assembling and dismantling operations has determined that for the specific conditions of Western Donbas mines, the suspended diesel monorail locomotive and self-propelled machines are the most promising options. Gear clutch rail diesel locomotives are recommended as the auxiliary transport for the accelerated preparation of extraction pillar and introduction of a longwall into operation. Originality. New approaches have been substantiated to improve selection of the efficient means of auxiliary transportation facilities and identify their operational parameters for the well-timed preparation of extraction pillars for their removal under the intensified underground mining conditions. A transportation schedule has been proposed to supply heavy tonnage loads by means of the suspended diesel rail locomotives as well as methods to calculate the expected loads on suspension members of the monorail road taking into consideration physico-mechanical characteristics of roof rocks within a development mine working. Practical value. It has been proved that under the conditions of the intensified mining operations, the recommended engineering solutions meet the requirements of the well-timed preparation of new extraction pillars. In addition, they are considered as a new tendency to improve current schemes of auxiliary transportation facilities for regional mines and provide operational reliability of the available underground transport equipment.

Ресурсность профессионального мышления и эмоциональное выгорание в профессиях социономического типа

<p>The analysis of specific features of professional thinking and emotional exhaustion among teachers and doctors in the context of COVID-19 pandemic. The growing demand for practical social psychological support of members of “person to person” professions during the unstable epidemiological situation due to COVID-19 have preconditioned the consideration of emotional exhaustion in the terms of interconnection with professional thinking that is able to contribute new professional and personal meaning to the activity process, thus becoming the cognitive resource that balances the levels and components of emotional exhaustion. The method of content analysis and expert evaluation alongside with mathematical statistical methods, such as correlation method of Charles Spearman and Student’s t-distribution, were used. Participants: 55 people, the members of professions of socionomic type, 25 teachers and 30 doctors, length of time worked – 10-25 years, men – 30%, women – 70%. The methods of studying the specific features of emotional exhaustion (V.V. Boyko; Christina Maslach, S. Jackson, adapted by N.E. Vodopiyanova) and components of professional thinking (the author’s method of self-analysis of the problem situation by I.V. Serafimovich and M.M. Kashapov). It has been demonstrated that suprasituatedness of thinking is negatively correlated with emotional burnout, while situatedness is positively correlated with it. It has been specified that the emotional burnout is more pronounced in doctors. It has been identified that adequacy and sufficiency of analysis of a problem situation are positively associated with the self-esteem of professional success and self-satisfaction, whereas validity is associated with the capability to cope with psychologically destructive circumstances. Under the high efficiency of analysis emotional involvement reduces, and when increasing the depth of analysis emotional burnout enhances. The obtained results about the partial connection of components of professional thinking and signs of emotional exhaustion can be used as the arguments for the author’s position of the ability of usage of thinking as a cognitive resource for solving practical problems.</p>

A probe into the path of financial development of green enterprises in coastal cities

Under the influence of environment, enterprise index and other factors, the result of enterprise financial development path analysis is not ideal, so the development path of green enterprise financial development in coastal cities is studied. The regional differences of the green economy of coastal cities are analyzed. Under the premise of considering the differences, the competitiveness of the financial development of green enterprises in coastal cities is clarified, and the constraints that affect the financial development path are obtained. According to the development goal of enterprise financial integration, all the influencing indexes that affect the development path of enterprise finance are obtained, and the concrete path of enterprise financial development is finally gotten. A port city is selected as the experimental object to verify, under the condition of low impact degree and high change of index, using expert evaluation method to compare the design method and existing methods. According to the results, the average expert evaluation score of the proposed method is 87.8, higher than that of the control method. The results show that the proposed path analysis method is more suitable for the analysis of the current situation of green enterprise financial development, and has more practical significance.

Федеральный бюджет и бюджетно-налоговая политика государства: макроэкономическая адаптация до 2025 года

The article examines the modern concept of the state fiscal policy in Russia and the possibilities of its implementation through the federal budget in the face of new global challenges. To this end, the authors assessed the resource base of the federal budget of the Russian Federation, as well as the adequacy of measures of fiscal regulation of the current economic situation. In this regard, the authors evaluated the feasibility of the initial macroeconomic indicators underlying the parameters of the federal budget for 2023–2025, primarily its revenues, and the risks of their possible change. The authors associate the key risks of failure to achieve the stated goals of the budget and tax policy for the period 2023–2025 with a sharp reduction in the resource base of the federal budget, especially its oil and gas revenues in the context of worsening geopolitical tensions and increasing sanctions pressure on the Russian Federation. The study focuses on the justification of approaches to minimize the negative consequences of external shocks both for the subjects of the Russian economy and for public finances. In the course of the study, the authors used the methods of statistical data processing, factor modeling, regression analysis and expert evaluation. The scientific novelty of the study lies in the assessment of the impact of new global challenges on the balance of the Russian federal budget and substantiation of approaches to transform fiscal regulation measures in response to these challenges. The practical significance of the study lies in the possibility of using its results in the development of state fiscal policy in the medium term under the conditions of dramatic changes in the scenario conditions of formation of the federal budget.

Full-scale military invasion of the Russian Federation of Ukraine as a factor of social transformations in higher education

The aim of the research is to study social transformations in the field of higher education under the impact of the factor of military invasion. Methods: The method of expert evaluations; Testing and questionnaire survey using the following methods: Life Stressor Checklist–Revised (LSC-R), Organizational Culture Assessment Instrument (OCAI). Analysis of statistics was carried out using t-Student, φ-Fisher tests; multidimensional methods of data analysis (regression, factor, correlation). The results: The study showed that the average indicator for the sample is in the range of high values (M = 518 ± 604). In general, neuro-psychological tension (NT) in the aggregate sample is in the medium range (M=58.4±7.32). The results demonstrate a typologically pronounced level of trust as a psychological phenomenon among students in the wartime (Trust Index: M=98.3±5.27). Conclusions: The results of the study showed a significant impact of the hostilities on the social transformations of the educational sector. This is due to changes in organizational needs and psychological stress. Prospects: Further research should be aimed at studying the driving forces of social transformation in the wartime. It is also necessary to develop a methodological framework for monitoring and evaluating such changes.

The efficiency of language teaching through integration in future philologists’ foreign language competence formation

The article aims at determining the impact of integrated methods and approaches to language learning on the development of various students’ foreign language competencies. Methods. The research involved the questionnaire method, the method of expert evaluations, and the method of analysing the development of language competences. The obtained data were processed by the methods of mathematical statistics. Results. It was found that the indicator “grammar knowledge” had a high correlation with “vocabulary” (r = 0.73) and “listening skills” (r = 0.69), which indicates the tendency of students with a high level of grammar knowledge to enhance their vocabulary and improve their listening skills. Some other indicators such as “writing skills” and “speaking skills” also had a fairly high correlation with “listening skills”. Conclusion. Summarizing the conducted research on the effectiveness of language learning through integration when building future philologists’ foreign language competences, it can be stated that this approach is effective and contributes to the improvement of language learning quality in higher educational institutions. Prospects. Future research could focus on different languages and students’ nationalities.

DIRECTIONS OF USE OF UNMANNED AERIAL VEHICLES AT THE AIRPORTS

The article is devoted to the available directions for the use of unmanned aerial vehicles at the airports. The task of this scientific research was to single out promising directions for the unmanned aerial vehicles use at the airports by analyzing and summarizing information from various sources, expertly justifying the identified directions. The selection of such directions has been carried out by analyzing and summarizing information from various sources. Nowadays there is a fast development of the service provision by unmanned aerial vehicles in different fields of practical activity: security monitoring; transportation of small-sized cargo; visual, spectral and thermal inspection of structures; monitoring of linear network infrastructure; photography and mapping; introduction of agricultural fertilizers and chemicals; atmospheric research. The method of expert evaluations has been used, expert judgments have been checked for consistency. Experts evaluated the proposed directions from the point of view of the importance and expediency of using unmanned aerial vehicles in different directions. The identified directions have been expertly substantiated and a system of priorities for the use of unmanned aerial vehicles at the airports has been built.

Model for evaluating the effectiveness of the educational activities of the class teacher

Introduction. The relevance of the research topic is due to the importance of the role of a class teacher in international educational practice. At the present stage, the institution of class leadership exists in the territory of the post-Soviet space, in China, France and a number of other countries. In the United States, a special structure has been formed – the dean’s office, which deals with issues of education. In many countries, there are positions of an educator, who is freed from educational work, attached to classes, as well as a mentor, tutor, who performs the function of the class teacher. In conditions of political tension, the activity of the class teacher acquires a leading character, creating the basis for the consolidation of society, ensuring national security on the basis of national and universal values. The class teacher provides pedagogical support for the educational process, cooperation with all participants in educational relations, is a key person in education. The personal development of students and the effectiveness of the educational system of the school largely depend on the activities of the class teacher. The ambiguity and multifunctionality of the activity of the class teacher require an objective evaluation of his/her work. The evaluation of the effectiveness of the educational activities of the class teacher is an integral part of diagnosing the quality of educational activities at school. In this regard, there is the need to develop a model for evaluating the effectiveness of the educational activities of the class teacher and the possibility of its implementation in the conditions of an educational organisation.Aim. The aim of the study is the theoretical and methodological substantiation, development and testing of a model for evaluating the effectiveness of the class teacher.Methodology and research methods. The study was based on the methodology of personality-oriented, system-activity, integrative, criteria-level, acmeological, competency-based and integrated approaches. Theoretical methods (theoretical analysis, generalisation and systematisation, modelling), empirical methods (questionnaires, the method of expert evaluations) were used as research methods. The study was carried out in 5 educational institutions of the Nizhny Novgorod region, which are the bases for the training of future teachers and class teachers of the Minin University (Nizhny Novgorod).Results. As a result, a structural-functional model for evaluating the effectiveness of the class teacher’s educational activities was developed and substantiated as a way of comprehensive diagnostics of his/her professional activities, improving the quality of interaction with all participants in educational relations. The model is presented in the unity of the target, content, procedural-organisational and result-evaluative components. The results of testing the developed model for evaluating the effectiveness of the class teacher are presented.Scientific novelty. The scientific novelty consists in the development of a structural and functional model of a complex-differentiated expert evaluation of the effectiveness of the class teacher, reflecting the multidimensionality of his/her activities and including value-targets, an integrative criteria matrix, evaluation procedure, diagnostic tools, evaluation trajectories and technology of their construction, a mechanism for calculating the results that determine the effectiveness of the educational activities of the class teacher. The designed expert evaluation model forms the basis for the development of a methodology for evaluating the effectiveness of the class teacher.Practical significance. The designed model for evaluating the effectiveness of the class teacher’s educational activities can be used in the practice of educational organisations to develop a system for encouraging the activities of the class teacher, supporting his/her professional growth, creating individual professional development trajectories, analytical conclusions and examinations.

MANAGEMENT OF COMPLEX TECHNOLOGICAL SYSTEMS UNDER CONDITIONS OF UNCERTAINTY OF INITIAL INFORMATION

One of the promising and effective approaches of the modern control theory of complex technological systems in the conditions of uncertainty caused by the fuzziness of the initial information is an approach based on the use of expert evaluation methods and the theory of fuzzy sets. This article presents a study of the properties of an automatic control system with the use of a pseudo-linear fuzzy PID controller built on the basis of a correction device with phase advance. One of the alternative methods of constructing control and regulation systems for objects that are indistinctly defined from the point of view of classical theory is the use of so-called fuzzy logic controllers. Therefore, the development of fuzzy control controllers based on existing microcontrollers is a very urgent task, since a pseudo-linear fuzzy controller built on the basis of fuzzy sets and fuzzy logical I/O, under the condition of uncertainty of the disturbing effect, is able to provide higher quality indicators of the transient process than a traditional PID controller. As pseudo-linear correction devices (PKU) we use: CU with amplitude suppression, with phase advance and with separate channels for amplitude and phase, since one of the main disadvantages of the PID controller is the presence of phase lag and high sensitivity to interference in the measuring channel.

GLOBAL TRENDS OF DIGITAL MARKETING IN THE POST-WIDE PERIOD

Abstract. The purpose of the article is to identify the most relevant elements and marketing tools of digitization, as well as to summarize the current global trends of digital marketing in the post-Covid period. The set goal determined the solution of the following tasks: 1) to analyze the current tools of digital marketing in the pre-covid and post-covid periods; 2) consider successful practices of using digital marketing by global companies; 3) to compare the scope of application of classic and innovative marketing tools, to determine the reasons and consequences of abandoning classic marketing tools. The research used the methods of system analysis, generalization, comparison, the graphic method. The importance and prospects of digital marketing as an effective tool for the development of modern business in the post-Covid period are substantiated. The expediency of transforming the current behavior models of enterprises in the market environment is argued, taking into account the possibilities of applying digital marketing as an effective tool for their sustainable and effective development. The advantages of digital marketing over classical marketing are determined, in particular, they include the focus on increasing customer orientation, strengthening the emotional connection with existing customers using modern technologies. The most appropriate methods of digital marketing that can be implemented in the post-Covid period have been identified. A complex of advantages of digital transformation and development of enterprises in the conditions of the COVID-19 pandemic and after it has been formed. The global practice of using digital marketing in the post-covid era, the reasons and consequences of the rapid transition from classic marketing to digital marketing tools are studied. Research methods were: analysis, comparison, forecasting by the method of expert evaluations, systematization of data. The hypothesis that the mass transition to digital marketing contributes to more efficient use of company resources and provides an opportunity to achieve wide recognition of the brand/product in the international market was investigated and its confirmation was provided based on the conducted analysis. Conclusions generalize that many digital marketing trends in the post-Covid period intersect and interact with each other. Modern marketing concepts of interaction, adaptive marketing and further personalization form the basis of current digital marketing trends. Businesses should quickly adapt to new changes, use all possible methods and functions, and monitor digital marketing trends in order to respond in time. As a result, demand for the flexibility of marketing teams and customer service professionals will increase in the coming years, and new trends and opportunities in the field of digital marketing will emerge. Although it is impossible to predict the future, especially in times of war, it is necessary to monitor global trends, to monitor the impact of digital marketing on the audience, whose demands are growing. Therefore, it is advisable to actively apply alternative methods of advertising, implement the latest technologies of product promotion and test new digital methods for implementing an effective marketing strategy. And also generate ideas, apply innovative solutions and creativity, because with the help of new ideas you can create new trends, providing strategic competitive advantages of business. Mass transition to digital marketing contributes to more effective use of company resources and provides an opportunity to achieve wide recognition of the brand/product both in the domestic and international markets. Keywords: trends, marketing, digital marketing, target audience, content, post-covid period.

Oil Detection Fault Tree Analysis Based on Improved Expert’s Own Weight–Aggregate Fuzzy Number

Oil detection technology improves the reliability of machinery or equipment. The physical and chemical indicators of the fluid can reflect the cause of the failure in various aspects, which can prevent major accidents to the greatest extent by setting up a fault tree. Owing to the lack of data, it is difficult to accurately obtain the basic event probabilities, which makes it difficult to diagnose faults. The expert evaluation method and aggregated fuzzy numbers are used to exact the failure probability, where the event probability is evaluated as the subjective will of the expert. To improve the probabilistic accuracy, weights are improved by the combined assignment method as well as the reasonableness analysis. A fault tree diagnostic model is constructed for qualitative and quantitative analysis, taking the ship engine oil viscosity high fault as an example. According to the results, the model can provide a comprehensive analysis of physical and chemical indicators. Experts’ own weights have a large impact on the failure probability, with their weight changes leading to a change in the failure ranking. From the discrimination, following a Bland–Altman analysis of the results, the selected combined empowerment method improved the discrimination of the results by 4.8% compared to the traditional method, with 100% data consistency, which proved that the improvement was reliable and effective. The structure of this fault diagnosis model is clear, which can quickly give the fault cause and probability reference value.

Transformation of the organization of multimodal transportation under martial law

Multimodal transportations plays a huge role in global economy. A lot of manufactures require different components, located in different remote sectors. In order not to discontinue production processes, multimodal transportation is used. Especially, the war influenced on the whole multimodal transportation system in Ukraine. Ports, harbors and sea ports stopped it’s further operation. The main role was fallen on road transportation. A plenty of airports were totally destroyed, the most of main harbor became in occupation, it’s further operation is impossible until the full victory of Ukraine. The road transportation became as the save link for supply chains and further economy operating. The one of the main problems in this situation is choosing of the optimal way and best-suited carrier for sequel carriage. The truck corporations continue cooperating with the airline agents, but the basic hubs of them were moved to the neighbor countries, it can appear new questions for optimization the delivery. Such factor as price, quality of the services, distance and time always plays a huge role in supply chains. The main aim of the transport company and its staff during multimodal transportation is to provide the delivery of goods, that were ordered by the manufacture just in time providing it’s safe and integrity. For optimization of all this factors according to the consignee’s preferences the expert evaluation methods are used in given research. There are lot of additional services attracted in such cases, such as: loading, unloading, repacking, changing the kind of packing (boxes, pallets, container repacking and other), in which sub-contractors take part. The union of all this processes mentioned above gives the opportunity to create the whole system of supplying the good from its seller to buyer. Every process is unique depending on the current situation and terms of delivery.

Novel approaches to the comprehensive assessment of the quality and adherence to pharmacotherapy and its use in cardiovascular patients

Aim. To assess quality and adherence to pharmacotherapy (PT) based on the developed integrated indicators in a cohort of outpatients with stable exertional angina.Material and methods. Using the expert evaluation method for main parameters of quality and compliance to PT, formulas were developed for calculating integrated indicators — the quality factor of PT (QFPT) and the rational PT index (RPTI). QFPT and RPTI are measured as a percentage; if the value is less than 50%, the parameters determined by them are considered unsatisfactory. In a cohort of 590 patients with stable exertional angina (men, 55,8%; mean age, 65,1±9,6 years), QFPT and RPTI were calculated. To assess the quality parameters of PT, data from patient registration forms were used, while adherence was determined using a 4-question validated score. After 21-month follow-up, primary composite endpoint was assessed: all-cause death, cardiovascular evens; an analysis of adverse outcomes was performed depending on QFPT and RPTI values.Results. In patients with exertional angina, QFPT of 0% was determined in 8 (1,4%) people, while every sixth patient (16,4%) received unsatisfactory PT (QFPT <50%). In the majority of patients (419 (82,4%) people), RPTI was less than 50%. In subgroups of patients with RPTI <50% and >50%, there was a significant difference in the Kaplan-Meier survival curves, according to the log-rank test (p=0,006). The hazard ratio (RR) in the Cox regression model showed a threefold significant increase in the risk of adverse outcomes with RPTI <50%: HR=3,0, 95% confidence interval (1,14; 7,92), p=0,026.Conclusion. The developed QFPT and RPTI make it possible to assess the quality of PT and performing a comprehensive assessment of the quality and adherence to PT, respectively. A relationship between low RPTI and a threefold increase in the risk of adverse outcomes in patients with stable exertional angina was revealed.

ЕКСПЕРТНА ОЦІНКА ВИРОБНИЧОГО ТА ПРОФЕСІЙНОГО РИЗИКУ

Purpose. To give expert assessment of production and professional risks at plants and factories. Methodology. There are many different methods of assessing industrial and occupational risks. Among them, it is hardly possible to single out some universal method that would be suitable for all organizations. Therefore, specialists choose the method of risk assessment independently. This article considers the possibilities of applying expert assessment methods in the analysis of industrial and professional risks. Methods of expert evaluation have been briefly outlined, which can be divided into two groups: individual and collective, and it has also been shown that the methods of expert evaluation are a way of forecasting and evaluating future results as well as the actions based on the forecasts of specialists. Results. It has been indicated that occupational risk is a risk that covers each of all dangers that may exist in the company during the development of normal activities, that the prevention of these risks consists of a set of prevention plans and measures that are carried out in plants, factories and in companies to prevent risky situations. In this way, the danger or risk that the activity presents to the employee must be eliminated or reduced. Practical significance. It has been shown that the production risk is defined as the risk associated with the manufacturing of products, goods, services, and with the implementation of any type of production activity, in the process of which entrepreneurs face the problems of inadequate use of raw materials, increase in cost price, increase in loss of working time, inefficient use of new methods of production. The main reasons for the production risk of a company or of a product manufacturer have been indicated. A brief explanation of qualitative and quantitative risk assessment, requirements for the expert commission and the experts themselves has been given.

ВЫБОР И РАСЧЕТ САМООЧИЩАЮЩИХСЯ БАРАБАНОВ ШАХТНЫХ ЛЕНТОЧНЫХ КОНВЕЙЕРОВ

Ensuring reliable operation of belt conveyors includes measures to clean their belts, since the cargo sticking to the working bodies violates the normal operation of the conveyor. Such events are especially relevant for belt conveyors operating in the harsh conditions of the mining industry. One of the ways to clean the tape is the use of self-cleaning drums. There are a large number of designs of self-cleaning drums with a general principle of operation. The manufacturers do not disclose specific technical information about these reels. Therefore, a decision was made to conduct calculation and experimental verification of the main technical characteristics of self-cleaning drums. The selection of the most promising versions of selfcleaning drums from the whole variety of nomenclature of their constructive designs was carried out based on the expert evaluation method - the method of preference vectors. Based on the results of expert evaluation of self-cleaning drums, drums for drive and tension station were selected...

IMPROVING THE METHODOLOGY OF EXPERT SAFETY LEVEL ASSESSMENT OF ROAD TRAFFIC

The article is devoted to the improvement of the method of expert safety level assessment of road traffic. A general analysis of road safety assessment methods and techniques was performed. Proposed ways to improve the methodology of expert assessment of the level of road safety based on the use of a combination of statistical and proactive models. The object of research in the article is the process of assessing the level of road traffic safety in a specific area at a certain time. The purpose of the study is to improve the methodology of expert assessment of the level of road safety based on the analysis of foreign and domestic experience. The article provides a general analysis of road safety assessment methods and techniques. It has been established that the indicators of most of the developed methods and techniques for assessing the level of security are based on one of two methodological approaches - the use of statistical and reactive methods and models or proactive and prognostic methods and models. However, it was determined that the analyzed methods and techniques mostly do not establish the influence of external conditions, in particular, variable road factors when assessing the level of road safety. The author's approach is proposed - a method of expert evaluation of road traffic safety, which is based on the use of a combination of statistical and proactive models and takes into account the importance and priority of one or another means of passive anti-accident protection of road traffic. An algorithm for evaluating road traffic safety according to the developed methodology is proposed. The developed method of expert assessment of the level of road safety allows you to make informed management decisions regarding projects and programs on road safety due to the consideration of justified factors of influence and a relative reduction in the time for conducting an examination. It is proposed to combine the use of the developed methodology with the analysis of the established level of road traffic safety using the " bow-tie " or "petal" approach.