Statistical Processing Methods Research Articles

ИЗУЧЕНИЕ ОСОБЕННОСТЕЙ РОДИТЕЛЬСКО-ДЕТСКОГО ВЗАИМОДЕЙСТВИЯ В СЕМЬЕ РЕБЁНКА С ЗАДЕРЖКОЙ ПСИХИЧЕСКОГО РАЗВИТИЯ СРЕДСТВАМИ АРТ-ТЕРАПИИ

Introduction. This article presents an empirical study that reveals the features of parent-child interaction in families with older preschoolers with intellectual disability through art technologies. The theoretical and methodological basis of the study is the provision on the specific path of child development as a special process of appropriating socio-cultural experience in interaction with the world of adults, where the family acts as an important institution of socialization, while the intrafamily environment and parent-child interaction are considered not just as an external condition but as a source of personality formation for children with developmental disorders in their immediate environment of their loved ones. The relevance of studying the characteristics of parent-child interaction with preschoolers with intellectual disability from different angles is substantiated: the lack of psychological research studying this problem using art technologies, as well as the importance of parental interactions between adults and the child for their social adaptation. The aim of the study is to determine the features of parent-child interaction in families of preschoolers with intellectual disability in comparison with families with normally developing peers using art technologies. Materials and methods. The main method is an ascertaining experiment, including art thera¬py diagnostic methods such as the techniques of “Family Self-Portrait” (G.Smith, A.I.Kopytin), “Mise-en-scene in the sandbox” (L. Keri, T.I. Zinkevich-Evstigneeva), “targeted observation”, “quantitative and qualitative analysis”, methods of mathematical and statistical processing and interpretation of data using the Mann-Whitney method and cluster analysis. The results. The empirical study of parent-child interaction in families of preschoolers with intellectual disability by means of art technologies showed psychological features characterizing the heterogeneity and level differences of quantitative and criteria-based qualitative indicators both in families of preschoolers with intellectual disability and in families with normally developing peers. The use of art technology in diagnosing parent-child interaction in families of preschool children with intellectual disability revealed the informative nature of this process. Conclusion. The experiment confirmed the hypothesis put forward about the presence of features of parent-child interaction in the family of a child with intellectual disability, characterized by disharmony, heterogeneity, which in turn reflects the specificity of the intrafamily environment caused by the birth of a child with developmental disabilities. The possibility of using art and art technologies in the diagnosis of studying the family interactions of adults and a child with intellectual disability is shown. And the study also proved the theoretical provision about the unity of the laws of mental development of normally developing preschoolers and preschoolers with intellectual disability, manifested in the context of interaction between parents and a child of this category at the stage of preschool childhood.

Lessons from a Blended Learning Implementation – What to do and what not to do?

Blended learning has taken its importance due to the turbulent ripple in teaching learning process in the past few years. Increase in online teaching expertise among the instructors has paved the way for developing online repositories and thus leading to blended mode offering of courses. But there exists a question “What is the pedagogy for every online repository to be converted to blended learning?” There must be few dos and don’ts in every implementation of any new pedagogical techniques. This research attempts to find a new pedagogical framework for effective implementation of blended learning into the regular curriculum after identifying appropriate learning method. The research is conducted as quantitative research with surveys obtained from students and faculty of the host institution after the first cycle of blended learning implementation in a computer science course. 40 students participated in the learning and recorded their responses through an online survey. Observations from the survey are analyzed in the perspective of different factors of blended learning with statistical analysis and Natural Language Processing (NLP) methods. From the study, it has been inferred that students recognize blended learning as an innovative pedagogical technique provided with factors that motivates and demotivates them. From these observations, suitable recommendations are made in terms of what to do and what not to do and a framework for effective implementation of the blended mode of learning is proposed. Keywords— Blended learning; Learning framework; New Pedagogy ; Student expectation; Faculty expertise

Діяльність Йозефа Бузека у галузі польської та галицької статистики

The article analyzes the activities of Professor Józef Buzek (1873–1936), a prominent figure in Polish and Galician statistics of the late 19th and early 20th centuries, an economist, demographer, lawyer, and sociologist. In leading positions of state statistical bodies, as a politician and teacher, he made a significant contribution to the historical and statistical research of Galicia, analyzed the economy and economy of the region, raised the issue of the position of national minorities in the Austrian Empire, which were both Ukrainians and Poles at the time. Since the contribution of Jozef Buzek to the Polish and Ukrainian statistical affairs is not sufficiently covered in domestic science, the purpose of the article is to expand Ukrainian historiography on Polish and Galician statistics and economic thought with the scientific works of Professor Buzek. The author provided a brief biographical reference, characterized the educational and scientific activities of Josef Buzek in the field of economics, jurisprudence, and statistics. The analysis of important political achievements, work experience in the Central Statistical Commission in Vienna, the Polish Central Statistical Office, and the Statistics Office in Lviv was carried out. The Polish and Galician scientist-economist and statistician also devoted his scientific activity to issues of national policy, characterized by works in which the problems of social and educational statistics are investigated. Important works on Polish and Galician statistics in the field of economy, population and demographic processes in Poland and Galicia have been singled out and analyzed. The assessment of achievements in the field of Polish political science and jurisprudence is given. It has been proven that his practical activities in the management positions of state and regional statistical bodies had a significant impact on the development of statistical affairs in Galicia and Poland, as well as contributed to the improvement of statistical information collection and processing methods.

ОБГРУНТУВАННЯ СТРАТЕГІЇ РОЗВИТКУ ПАРКОВО-РЕКРЕАЦІЙНИХ КОМПЛЕКСІВ В СИСТЕМІ СТАЛОГО РОЗВИТКУ ТЕРИТОРІЙ

Goal. The purpose of the article is the study of modern trends in the functioning of parks and recreation areas and the formation of scientific and methodological bases for the justification of the strategy for the development of park and recreation complexes in the system of sustainable development of territories. Method. The solution of the set research tasks within the framework of the goal is implemented by using a systematic approach, methods of statistical processing of information, methods of analysis and synthesis, a dialectical approach to determine the prerequisites and basis for developing a strategy for the development of park and recreation complexes in the system of sustainable development of territories. The results. According to the results of the study of modern trends in the functioning of parks and recreation areas, the thesis is substantiated that the significant destruction of natural objects as a result of active hostilities not only leads to the loss of Ukraine's natural potential and a number of negative environmental consequences, in particular, in the form of environmental pollution, but also to a decrease national well-being, which is manifested in the deterioration of the financial and economic results of the functioning of territories and cities, the living conditions and the performance of professional functions of the community located in such locations. The analysis of statistical data showed that the last decade was accompanied by the active creation of regional landscape parks and the activation of actions by the state and local communities in the field of transferring territories and urban zones to the status of those of nature conservation importance. In these conditions, park zones received a special status, which allows to ensure the renovation of natural objects and to push and develop natural objects. As a result of active hostilities, which is accompanied by the destruction of the infrastructure of cities, the reduction of the areas of nature-protected territories, the financial, economic and social results of business entities are reduced. Therefore, in the work, taking into account the objective need to develop an effective toolkit for substantiating the strategy of the development of park and recreation complexes in the system of sustainable development of territories, recommendations for choosing a strategy, decision-making criteria and algorithms for their implementation with the simultaneous achievement of positive environmental results and the growth of economic indicators of economic processes on territory As a result, the scientific and methodological principles of substantiating the strategy of development of park and recreation complexes in the system of sustainable development of territories were formed. It was noted that the proposed developments are aimed at realizing the socio-economic and ecological potential of restoration of park areas, in particular at the level of the city and territories. Prospective directions for the development of parks have been formed, which will contribute to such processes and the formation of effective economic policy in the field of organizational and economic provision of sustainable development of city parks and other recreational and landscape areas. The information basis for achieving the set goal is the official statistical data of the State Statistics Service of Ukraine, the Donetsk Regional State Administration, the results of research in the field of development of cities, territories, parks and recreation areas, carried out by domestic and foreign scientists, official sources of information on the financial and economic results of the functioning of regional of landscape parks of Ukraine, provisions of strategies for the development of cities and regions of Ukraine, provisions of the Sustainable Development Strategy of Ukraine until 2030. Scientific novelty. Refined scientific and methodical principles for the justification of the strategy for the development of park and recreation complexes in the system of sustainable development of territories are formed taking into account the current state of natural resources of Ukraine, and in particular the Donetsk region, and the consequences of active hostilities, which are accompanied by the irreversible destruction of a significant range of natural objects, and form the basis for clarification of the main provisions of strategies for the development of cities and territories on the basis of sustainability, which will contribute to the growth of national well-being and obtaining significant socio-economic results for improving the environmental conditions of economic activity.

Identification of Anomalous Measurements of Radio Signals by a Satellite Radio Navigation System by the Method of Statistical Processing of Measurement Discharges

Identification of Anomalous Measurements of Radio Signals by a Satellite Radio Navigation System by the Method of Statistical Processing of Measurement Discharges

Застосування поліграфа в умовах воєнного стану в Україні

B a c k g r o u n d . Choosing the most effective polygraph methods to meet the needs of military and law enforcement forces in Ukraine, in the conditions of martial law, determined the relevance of our subject. The adaptation of the best international standards of research using the polygraph and the development of a great national school, taking into account the psychological features of the polygraph practice, is an up-to-date requirement on the way to European integration, successful struggle with the Russian occupation forces and countering internal threats. At the same time, in psychological science, the use of the polygraph in accordance with the modern challenges of war has not been researched enough. M e t h o d s . A complex of research methods was applied, including: theoretical (analysis, comparison, synthesis of theoretical and methodological approaches to research results), empirical (observation, survey, testing, experiment), methods of statistical processing of research data (actual analysis and comparison of samples). To assess the reliability of the statements of the interviewees, the survey used the method of pretest interview according to the Federal system, the method of the test of test questions – "Federal Zone Comparison Test" (Federal ZCT) for constructing test questions and "Empirical Scoring System – Multinominal" (ESS-M) for evaluating the received results. R e s u l t s . A ranking of effectiveness was carried out, according to the importance of each of the psychophysiological channels in polygraph examinations. The data obtained by us were compared with a meta- analytic study of the American Polygraph Association (APA). The obtained results made it possible to identify the criteria and indicators of the effectiveness of the polygraph in the conditions of martial law in Ukraine, taking into account certain psychological indicators of military personnel. C o n c l u s i o n s . In accordance with the results of the study, based on the identified psychological indicators, the conditions for the effectiveness of the polygraph in official checks and investigations conducted in the military units of Ukraine under martial law were established and confirmed. The effectiveness of the application of polygraph methods was confirmed by comparison with the APA meta-analysis. The results of the obtained data provided an opportunity to refute the version regarding the incompatibility of the American methods of polygraph examinations with the mentality of the citizens of Ukraine.

ВЛИЯНИЕ ДЕТСКИХ ПОСОБИЙ И КОМПЕНСАЦИОННЫХ ВЫПЛАТ НА СНИЖЕНИЕ УРОВНЯ БЕДНОСТИ В РЕГИОНАХ РФ

The object of the research is low-income (poor) households with children and their incomes. The subject of the study is state social assistance in the Russian Federation. The aim of the study is to assess the impact of social assistance measures for families with children on reducing poverty. The methods of research include structural analysis, comparative approach, methods of statistical processing of information, and general scientific methods of cognition. Based on the study the main directions of social assistance for families with children as the main group of the poor population of Russia are systematized. The analysis of the monetary incomes of households with children and a quantitative assessment of the impact of social assistance measures on reducing their poverty in the Russian regions is made on the basis of micro data of the Statistical Survey of Income and Participation in Social Programs for 2021 (VNDN-2021). The research results demonstrate the contribution of child social benefits and compensation payments in reducing the poverty of families with children and its scale. At the same time, the size of social benefits is inadequate to compensate for the money income deficit of poor households. The scope of research results application: the analytical data, research conclusions, and recommendations can be used by executive authorities at the federal and regional levels in the development and implementation of poverty reduction mechanisms in Russian regions.

МЕТОД СТАТИСТИЧНОГО ОЦІНЮВАННЯ РЕЗУЛЬТАТІВ КЛІНІЧНИХ ДОСЛІДЖЕНЬ ПРИ ЛІКУВАННІ АРТЕРІАЛЬНОЇ ГІПЕРТЕНЗІЇ ТА ОЖИРІННЯ

Currently, the processing of a large amount of data, which have a different physical or biological nature, remains an important task, since all parameters have their own distribution laws, which in general differ from the Gaussian one. Such a set of data does not make it possible to apply standard methods of statistical processing. There is no general classificationmethod either.The analysis of research and publications made it possible to formulate the tasks of the research presented in the work, how to choose a relevant statistical approach that would optimally take into account the peculiarities of endocrinological research, which include anthropological, biochemical and other indicators. The paper proposes an approach based on image classification using distance functions.The purpose of the article is to compare methods of treating obesity and hypertension using statistical data processing methods, namely by calculating the Mahalanobis distance between groups of patients and to prove the effectiveness of the new proposed method of treatment.The article proposes a new approach to the statistical processing of a large amount of diverse data, based on the use of the Mahalanobis distance. The ways of decision-making based on the Mahalanobis distance measurement between a sample of relatively healthy patients and two samples of patients were considered: the main - a group of patients receiving a new treatment, and an experimental - a group of patients receiving standard treatment for excess weight and arterial hypertension.Therefore, the paper proposes for the first time the use of the Mahalanobis distance as a criterion for evaluating a large number of diverse physical indicators taken from a biological object.

Ukrainian National Biographical Archive as a Tool and Material in Ethno-Psychological Research

The purpose of the article is to demonstrate the possibilities of using the electronic "Ukrainian National Biographical Archive" (UNBA) in the field of humanitarian knowledge based on a specific applied historical and psychological study. The research methodology is a combination of general scientific methods of analysis of theoretical material and statistical and comparative methods of analysis of specific empirical data, their systematisation and generalisation. The scientific novelty of the research is characterised by the use of information technologies, large volumes of data, and methods of statistical processing in the traditionally humanitarian field of research, which is characterised by a predominantly descriptive approach. Conclusions. On the example of the proposed study, an approach is presented that will allow to significantly expand the possibilities of both specific biographical investigations and studies of socio-historical, ethnological, and historical-psychological directions. Large-scale volumes and detailed structuring of the biographical archive (UNBA) according to its thematic, chronological, and gender distribution allows presenting the system itself as the core of the scientific activity of the virtual historical and biographical laboratory. Analogues of this approach do not exist in Ukraine today due to the uniqueness of the biographical archive (UNBA) itself, which combines the widest possible coverage of national biographical material with its detailed structuring. As a perspective of further research in the presented direction, we see the study of the dynamics of changing the archetypal features of the generalised image of Ukrainians in the temporal perspective. This includes answers to the question: how were the spheres of social activity of men and women correlated in different periods, the scaling of which is possible from centuries to one generation, i.e. 20-30 years? How statistically significant are these changes? We consider another interesting direction to be the identification of archetypal characteristics of Ukrainians depending on the places of social activity, birth, etc. – the so-called geographical rubrics. Keywords: Ukrainian National Biographical Archive, personalities, archetypes, thematic headings, domains, statistics.

REGULATION OF UKRAINE’S COMMODITY MARKETS IN CONDITIONS OF EMERGENCY AND MARTIAL LAW

The economy can function both under normal and extraordinary conditions, which include states of emergency and martial law. Emergency conditions arise from time to time and can be both relatively short and sufficiently long. The functioning of the economy in conditions of emergency and martial law can include overcoming the pandemic and repelling armed aggression. The functioning of the economy in conditions of emergency and martial law requires special methods of state regulation, including on commodity markets. The purpose of the article is to determine methodical approaches to the formation of regulatory policy on commodity markets under conditions of emergency and martial law. To achieve the goal, the following tasks were set: 1) to determine the peculiarities of the regulation of commodity markets in conditions of emergency and martial law; 2) assess the effectiveness of regulatory influence; and 3) substantiate recommendations for improvement of regulatory policy. Various methods of sampling and statistical processing of information were used during the research. Data from the State Statistics Service of Ukraine, the Ministry of Finance of Ukraine, and the State Service of Ukraine on Food Safety and Consumer Protection were used for the analysis. Special attention was paid to the methods of price regulation and increasing supply in commodity markets of consumer goods. One of the main features of the functioning of the economy in conditions of the COVID-19 pandemic and martial law is the disruption of the usual supply chains of goods. There is a commodity shortage in the markets, which accelerates the growth of prices. Therefore, the main task of regulatory policy in commodity markets is to encourage supply and curb inflation. To this end, during 2020-2022, a set of measures was introduced: the procedure for starting a business was simplified, the tax burden was reduced, pricing was deregulated, exports were limited, barriers to imports were lowered, a declaration of intent to increase prices was introduced, price limits were established, etc. As a result of the conducted research, it was found: 1) high efficiency of influence on the price dynamics on the part of export restrictions and tax benefits; 2) low effectiveness of the declaration of the intention to increase the price; 3) relatively high efficiency of setting ceiling prices during a pandemic and low efficiency of this measure under martial law; 3) high expediency of introducing free prices on the markets of goods of significant social importance with high competition between suppliers; 4) great importance of the competition between suppliers to overcome shortages and price stability. In order to improve the regulatory policy in the conditions of emergency and martial law, the following recommendations have been substantiated: 1) canceling the price limits in highly competitive markets; 2) simplifying the procedure for declaring the intention to increase the price and strengthening control over its implementation; 3) creating strategic stocks of goods of significant social importance in the event of a state of emergency and war.

Определение сопротивления в цепи тяговых электродвигателей по данным микропроцессорных систем управления

Purpose: To develop methodology for determining the actual resistance of traction electric drive (TED) circuits of a locomotive with electric power transmission and with refined calculation of voltage losses of a collector-brush apparatus according to microprocessor control system data. These data are necessary for calculating actual traction characteristics of a locomotive as well as its braking characteristics in electric braking modes. Methods: Methods of electric machine theory, statistical processing and regression analysis of experimental data were used. Results: Based on the statistical analysis of registration data of on-board diagnostics subsystem of 20 sections of 2TE116U and TEP70BS diesel locomotives, methods for determining resistance factual value for traction electric drive circuit as well as methods of refined calculation for voltage losses in a collector-brush apparatus are proposed and justified. The hypothesis on distribution normal law for the value of resistance and the possibility to use its mathematical expectation as an estimated value is confirmed. The limits of resistance possible changes for TED circuits of diesel locomotives 2TE116U and TEP70BS have been established. Practical significance: The results obtained allow us to clarify energy loss amounts in a locomotive traction drive when calculating its traction and braking characteristics. Data on the limits, allowed in exploitation, of active resistance change for TED serviceable chains may be used for operative diagnostics of locomotive power circuit.

Factors of Sustainable Development of Investment and Construction Business: Financial and Economic Aspect

In modern conditions characterized by the manifestation of crisis phenomena and specific features for each individual state, it is important to ensure the sustainable development of the country's economy as a whole. The sustainable development of cities and individual regions of the country largely depends on the success of the investment and construction business in their territory. The sustainable development of which can be ensured on the basis of managing the factors influencing this process. The most relevant factor in ensuring the sustainable development of the investment and construction business today is the financial and economic aspect. The purpose of the study is to identify and classify the financial and economic factors that affect the sustainable development of the investment and construction business. This study was carried out using the methods of systemic, logical and economic analysis, as well as methods of statistical information processing and classification. The authors defined the essence of the investment and construction business, identified the factors of its sustainable development, and determined their priority. Particular attention is paid to financial and economic factors, their classification and a characteristic are given. We analyzed financial and economic indicators of construction activity. Measures to create favorable conditions for the sustainable development of the investment and construction business are proposed.

WEB MINING: DATA MINING ON THE INTERNET

In the article“Web Mining: Data Mining on the Web” 3 different components of Web Mining have been described and mainly Web Usage Mining has been discussed in detail and analyzed with examples. The general theme of the article is clarified by giving such sub-topics: Difficulties in analyzing data from the Internet, Stages of Web-Mining, Analysis of the use of Web resources (Web Usage Mining), Web Server Log Files and etc. General Relationships Between Web Mining Categories and Data Mining Tasks are shown. At the end, in the Conclusion, it is shown that to solve such problems, Data Mining technology is used. This name refers to a set of methods that allow us to extract useful information according to certain rules from the amount of collected data in which this information is implicitly contained. In this case, both statistical and intellectual processing methods are used. Keywords: Web-Mining, Data Mining Methods, Data from the Internet, Web Usage Mining, User Session Identification.

System of continuous professional and legal training of cadets at the maritime university

Introduction. In maritime educational institutions, the existence of a system of continuous professional and legal training of cadets is relevant in connection with the implementation of a competent approach to the formation of professional and legal competencies. The purpose of this article is to study the professional, personal qualities of the cadet, affecting his professional and legal competence and readiness for professional and legal activities after graduation. They are of interest, criteria and indicators of behavior for assessing the professional, personal qualities of a cadet. The information obtained on the basis of the results of the experimental work on testing and practical implementation of the system allows us to assess the levels of formation of professional and legal competencies, which indicates its effectiveness. Materials and Methods. The experiment was attended by cadets of the 1st, 3rd, 5th courses of the specialty "Navigation" in the amount of 150 people. The Mann-Whitney U test criterion is used as a method of statistical processing. Assessment of the levels of formation of competencies was carried out by the method of questionnaires, testing, surveys, developed by the authors on the basis of the methodology of N. P. Fetiskin, G. M. Manuylov. The description of the level of each personal professional and legal competence included distinctive characteristics and a description of their manifestations in the behavior of the cadet, the so-called behavioral indicators. Results. According to the results of the questionnaire survey, it was revealed that the readiness of cadets for professional and legal activities does not always meet the established requirements. So the general level of legal competence of a graduate of a maritime university is 24 % of 50 people surveyed, that is, 12 people. The implementation of the system of continuous professional and legal training of cadets at the maritime university proposed by the authors allows not only to determine the content of legal disciplines, but also to introduce new forms, methods, means of training, to develop criteria and behavioral indicators for assessing the professional, personal qualities of the cadet that affect his professional and legal competence. Discussion and Conclusions. The results of the study at the maritime university based on the results of the experimental work carried out on the approbation and practical implementation of the system make it possible to assess the levels of formation of professional and legal competencies, which indicates its effectiveness.

Evaluation of the performance of the class teacher: the experience of Minin University

Introduction. The article summarizes the results of the first year of work on the implementation of the scientific project "Evaluation of the effectiveness of the class teacher (including the development of performance criteria)" (730000F.99.1.BV10AA00006). The research is aimed at developing theoretical and methodological foundations for evaluating the effectiveness of the activities of class teachers in a modern school. The relevance of the task is determined by the significantly increased public attention in recent years to the organization of the educational activities of the school and the lack of unified, generally recognized criteria for evaluating the effectiveness of the key figure in the educational process of the school: the class teacher. Materials and Methods. The theoretical and methodological basis of the study is a set of methodological approaches: system-activity approach (V. V. Davydov, A. N. Leontiev, S. L. Rubinshtein, D. B. Edkonin); acmeological (G. M. Derkach, V. N. Maksimova); personality-oriented (E. V. Bondarevskaya, V. V. Serikov, I. S. Yakimanskaya); competence (A. V. Khutorskoy, I. A. Zimnyaya); criterion-level (I. A. Zimnyaya, N. B. Avalueva); task (V. I. Slobodchikov, G. A. Ignatieva); integrative, complex (A. P. Belyaeva). The following research methods were used: system analysis and synthesis, comparative and comparative, theoretical modeling, survey, method of expert assessments, study and generalization of pedagogical experience, methods of statistical processing of results. Results. The research team substantiated a structural-functional model for evaluating the effectiveness of the class teacher. On its basis, an integrative criterion matrix for evaluating the effectiveness of the class teacher was developed, including procedural, personal and productive blocks, each of which contains certain criteria and indicators. They are built taking into account the invariant areas of activity of the class teacher (activities for the education and socialization of the personality of the student, work with parents, with the class, with subject teachers, with social partners) and the corresponding analysis and evaluation technology. A method for evaluating the effectiveness of a class teacher's activity has been constructed as a way of a comprehensive diagnosis of his professional activity, the quality of interaction with all participants in educational relations and determining the degree of development of his professional and personal competencies. It includes an integrative criteria matrix, a class teacher's professiogram, procedural "packages", modern practice-oriented diagnostic tools. Practice-oriented tools of the assessment tool have been developed, which are part of the methodology, which provide objectivity, clarify the content of the assessment and significantly expand the possibilities for determining the effectiveness of the class teacher. These diagnostic tools are represented by checklists, graphic cases, questionnaires. The results of the study were tested, reviewed and discussed in seven constituent entities of the Russian Federation (St. Petersburg, Kaliningrad, Nizhny Novgorod, Moscow, Kirov, Ulyanovsk, Samara regions) online and offline in the context of determining their practical applicability. A positive response was received in the professional pedagogical community. Discussion and Conclusions. Theoretical and methodological foundations for assessing the effectiveness of class teachers have been developed on the basis of the above methodological approaches and a set of sound principles (openness, optimality and objectivity, consistency, criteria-based clarity, collegiality, a combination of expert assessment and self-assessment, etc.). The results of the study can be used in the mass practice of analyzing and evaluating the effectiveness of class teachers. In addition, they can be used in the professional training of future teachers at the undergraduate and graduate levels in the development of special courses on the organization of educational activities at school, as well as in the research work of graduate students studying the organization of educational activities of class teachers. The results of the study can be used in advanced training courses for teachers who perform the functions of class teachers, educational advisers, deputy directors of schools for educational work when designing additional professional educational programs on educational issues.

Diagnosis of transformers of electrical complexes using non-contact laser vibrometers

TARGET. The purpose of this work is to improve the method of vibration control of the active part of a power transformer by fractal analysis of its vibration signal. Fractal analysis of the magnitude-time characteristics of the quantitative assessment of the degree of "jagged" vibration signal of the transformer. For a quantitative assessment, the coefficient of fractal analysis (FAC) was introduced based on the determination of the fractal dimension by the Hausdorff-Besikovich method. To test the developed method of application, a non-contact laser measuring diagnostic complex (MDC) with developed software based on LabVIEW, ImageJ and Python. Experimental studies of the technical condition of the transformer TSZ 16 were carried out on the basis of the developed method using a non-contact LCIK, the CFA of the windings and the magnetic circuit of a single transformer was determined, the level of technical condition for the impulse elements of the transformer was determined.METHODS. The vibration control method makes it possible to control a power transformer during its operation under voltage, which makes it possible to switch from a planned system of transformer repairs to a system for taking repairs according to the current technical condition.RESULTS. The improved method of vibration control was tested using the developed noncontact LCIK, the level of technical condition of the power transformer under voltage was determined.CONCLUSION. An improved method of vibration control makes it possible to determine the level of technical condition of an energized power transformer with the possibility of automatically obtaining a decision on the technical condition, as well as to use statistical methods for processing and analyzing signals received from the transformer.

USAGE OF IT TECHNOLOGIES IN MEDICINE AND GENOMICS

In this article, we will consider what IT technologies are most used in medicine and by genomics methods in particular, also we will take a look at the use of big data in this matter. Additionally, we will learn what a connectome is, analyze 4M and 3V frameworks in genomics. Statistics in medicine is one of the analysis tools experimental data and clinical observations, as well as the language by means of which the obtained mathematical results are reported. However, this is not the only task of statistics in medicine. Mathematical apparatus widely used for diagnostic purposes, solving classification problems and search for new patterns, for setting new scientific hypotheses. The use of statistical programs presupposes knowledge of the basic methods and stages of statistical analysis: their sequence, necessity and sufficiency. In the proposed presentation, the main emphasis is not on detailed presentation of the formulas that make up the statistical methods, and on their essence and application rules. Finally, we talk through genome-wide association studies, methods of statistical processing of medical data and their relevance. In this article, we analyzed the basic concepts of statistics, statistical methods in medicine and data science, considered several areas in which large amounts of data are used that require modern IT technologies, including genomics, genome-wide association studies, visualization and connectome data collection.

Nanoscale crystal growth processes triggered by captured solid impurity particles

Atomic force microscopy (AFM) was used to study the influence of solid neutral particles on dynamics and kinetics of surface growth on nanoscale. The experiment involved real-time observations of the hydroxymethylquinoxalinedioxide (C10H10N2O4) surface capturing micrometer tourmaline particles of no particular shape and with low adhesiveness to the material of the host crystal. It was made possible to visualize in detail a hillock formation on a screw dislocation triggered by a captured particle, as well as dislocation propagation through the overgrowing macrostep.Out of the multitude of similar size particles, only one of them generated a long-term screw dislocation – that was the particle in whose area a Frank-Read dislocation had been triggered even before the particle cavities were sealed. A detailed scanning showed that the wellknown phenomenon of a dislocation propagating through the overgrowing layers manifests itself as creation of a new screw hillock with monomolecular steps exactly above the lower hillock axis.The author’s method of statistical processing of AFM data was used to compile an array of average tangential and average normal growth rates and their fluctuations. In spite of the matter in the solution not being refilled, the normal and tangential rates showed constant and significant increase.The results were compared with the data from several earlier experiments with and without special impact during the growth process. It was established that the growth rate in the experiment with incorporation of impurities has small and almost stable fluctuations just like in the experiments without any impact.

A Method for Statistical Processing of Magnetic Field Sensor Signals for Non-Invasive Condition Monitoring of Synchronous Generators.

Condition monitoring of synchronous generators through non-invasive methods is widely requested by maintenance teams for not interfering the machine operation. Among the techniques used, external magnetic field monitoring is a recent strategy with great potential for detecting incipient faults. In this context, this paper proposes the application of a simple strategy with low computational cost to process data of external magnetic field time derivative signals for the purposes of condition monitoring and fault detection in synchronous machines. The information of interest is extracted from changes in the magnetic signature of the synchronous generator, obtained from frequency spectra of monitored signals using induction magnetic field sensors. The process forms a set of time series that reflects constructive and operational characteristics of the machine. The Shewhart control chart method is applied for anomaly detection in these time series, allowing the detection of changes in the machine magnetic signature. This method is employed in an algorithm for continuous condition monitoring of synchronous generators, presenting as output a global change indicator for the multivariable problem associated with magnetic signature monitoring. Correlation matrices are used to improve the algorithm response, filtering series with similar variation patterns associated with detected events. The proposed method is validated through tests on an experimental bench that allows the controlled imposition of faults in a synchronous generator. The proposed global change indicator allows the automatic detection of stator and rotor faults with the machine synchronized with the commercial power grid. The proposed methodology is also applied on data obtained from an equipment installed in a 305 MVA synchronous generator of a hydroelectric power plant where the evolution of an incipient fault, i.e., a mechanical vibration fault, has been detected.

Зміни показників рівноваги тхеквондистів під впливом використання вправ на нестійкій опорі

Рurpose: of the study is to track changes in the balance indicators of taekwondo players aged 13-14 under the influence of exercises on unstable support. Material and methods. 8 taekwondo athletes aged 13-14 (4th year of training) participated in the study. To implement the tasks of our research, the following methods were used: to establish the relevance of the topic and select appropriate tests, an analysis of scientific and methodical literature was conducted; to determine balance indicators, Romberg's test was performed on the right and left leg, with eyes open and closed, and a test according to the Yarotskiy method; in order to check the effectiveness of exercises on an unstable support, a pedagogical study was organized and the obtained indicators were analyzed by methods of statistical information processing. Pedagogical testing was conducted remotely through the zoom virtual conference platform for each individual athlete in a separate conference session. Results: indicators of balance development of taekwondo players aged 13-14 have been established at a sufficient level. There was no difference between the performance of balance test exercises on the left and right leg in athletes (at p˃0,05). Performance indicators of the Romberg test while standing on one leg with eyes open are significantly higher than performance of this task with eyes closed (at p˂0,01). After the conducted pedagogical study, the balance indicators of young athletes in almost all test exercises underwent positive changes: the performance indicators of the Romberg test on the right and left leg with open eyes improved by 10,1 % and 7,6 %, respectively (at p˂0,05); with eyes closed improved by 11,6 % when performing the test on the right leg and by 14 % on the left leg (at p˂0,05). The results of the Yarotskiy test in our study had an improvement of 10,8 %, but did not have reliability (at p˃0,05) Conclusions. The suggested exercises of an imitative nature, which are performed on a non-sticky support, have a positive effect on the development of coordination abilities of taekwondo players, in particular, balance. Keywords: taekwondo player, coordination, balance, development, sports training, unstable support.