Statistical Processing Methods Research Articles

Evaluation of the Implementation of Compensatory Reforestation on the Example of the Irkutsk Region

In 2018 year within the framework of the national project «Ecology», developed in accordance with the Decree of the President of the Russian Federation dated May 7, 2018 No. 204 «On national goals and strategic objectives of the development of the Russian Federation for the period up to 2024», the federal project «Forest Conservation» was launched. Its main purpose was to ensure a balance of deforestation and reproduction of forests in the ratio of 100 % by 2024. The purpose of the study was to assess and identify regional problems in the implementation of compensatory reforestation on the example of the Irkutsk region. The results of the implementation of the regional project «Preservation of Forests», the introduction of amendments to the regulatory framework in the field of forest restoration on the example of the Irkutsk region were presented, the analysis of the collected data was carried out. We used methods of analysis, comparison, and statistical processing of information. The study showed the need to modernize and expand the regional forest nursery, recommendations to solve problems in the field of implementation of compensatory reforestation were proposed. The work used the reporting data of the MLK of the Irkutsk region, such forms as 1-LH, 1-VL and 1-IL, as well as regulatory and legal sources related to the issues of compensatory reforestation.

Households at Risk of Poverty: Regional Aspect

The article reviews the main approaches to the definition and measurement of poverty, the author's definition of the poverty profile is given. Based on the data of Statistical Survey of Income and Participation in Social Programs 2019 by Rosstat the tools for constructing and analyzing the socio-economic and demographic characteristics of the population with average monthly per capita monetary incomes from 1.0 to 1.2 subsistence minimum (PM), located in the zone of increased risk of crossing the official poverty line are developed and tested. The modal characteristics of the population in the zone of increased risk of poverty both in Russia and in the North Caucasus and Volga Federal Districts separately are studied. Methods of work: dialectical method of cognition, systematic approach, structural analysis, methods of statistical processing of information, comparisons and groupings, general scientific methods of cognition (analysis and synthesis, induction and deduction, abstraction and concretization, etc.). As a result of the conducted research, the causes and specifics of regional poverty of the Russian population are determined and categories of families (households) are identified with average monthly per capita monetary incomes from 1.0 to 1.2 PM, who have the highest risks of poverty. The scope of application of the results obtained - the results of the analysis of the characteristics of families at risk of poverty contained in the work can be used by federal executive authorities, executive authorities of the subjects of the Russian Federation in the development of preventive measures to prevent the population near the poverty line from falling into the category of poor.

Substantiation for the selection criteria for a medical asset management information system in military medical organizations

The modern information systems market offers a large number of software products for the management of medical assets. Therefore, the substantiation for the criteria for selecting information systems is relevant area of decision-making policy for the management of the medical-military organisation. The purpose of the study was to substantiate the criteria. The materials of the study include the works of Russian scientists in the sphere of organizing civil and military healthcare, managing medical property resources, the methodology of sociological research, and other scientific, methodological, and reference literature on the topic of the study, as well as questionnaires completed by experts. Structural-functional, system and problem analysis, statistical methods of analysis, methods of sociological research, methods of comparison and description, and logical analysis were used during the research. The sociological study was carried out on the basis of the S.M. Kirov Military Medical Academy of the pharmaceutical profile departments and consisted of two stages: the formation of an initial list of criteria based on the results of content analysis and problem analysis; expert assessment according to the Delphi method in several stages (rounds). As a result of the study, the criteria for selecting an information system for managing medical assets in military medical organizations are substantiated. At the same time, a simple in implementation and subsequent statistical processing method with reliable results that can be used for making a decision on the selection of an information system, taking into account the specifics of each military medical organization, has been substantiated and applied.

Influence of Temperature Parameters on Morphological Characteristics of Plasma Deposited Zinc Oxide Nanoparticles.

Zinc oxide nanoparticles were obtained by plasma-enhanced chemical vapor deposition (PECVD) under optical emission spectrometry control from elemental high-purity zinc in a zinc–oxygen–hydrogen plasma-forming gas mixture with varying deposition parameters: a zinc source temperature, and a reactor temperature in a deposition zone. The size and morphological parameters of the zinc oxide nanopowders, structural properties, and homogeneity were studied. The study was carried out with use of methods such as scanning electron microscopy, X-ray structural analysis, and Raman spectroscopy, as well as statistical methods for processing and analyzing experimental data. It was established that to obtain zinc oxide nanoparticles with a given size and morphological characteristics using PECVD, it is necessary (1) to increase the zinc source temperature to synthesize more elongated structures in one direction (and vice versa), and (2) to decrease the reactor temperature in the deposition zone to reduce the transverse size of the deposited structures (and vice versa), taking into account that at relatively low temperatures instead of powder structures, films can form.

Directions Selection for Assessing the Quality of Electronic Learning Tools for the Organization of the Educational Process of the Higher Educational Process

The article deals with issues related to the assessment of the quality of e-learning tools (ELT), its design and application in practice. The main attention is paid to the issue of assessing the availability of certain functional capabilities in the ELT, which make it possible to most effectively solve didactic tasks, as well as to motivate teachers and students. The purpose of the article is to identify the main directions for assessing the quality of electronic learning tools and to substantiate the possibility of a comprehensive assessment of the level of functionality of the ELT. Methodology. ELT as a complex information object is decomposed into simpler elements, to which various quality assessment methodologies can be applied - expert, cognitive-linguistic, methods of statistical information processing and artificial intelligence. In conclusion, it is concluded that the assessment of the quality of e-learning tools can be carried out in two ways: the assessment of content as a text in terms of the completeness of the content with the definition of a number of parameters of this assessment and the assessment of “functionality” in terms of the possibility of implementing certain functions. The totality of the selected areas, indicating the assessment tools, will determine the criteria for the quality of e-learning tools.

Technologies of virtual reality and perspectives of their application in mortgage lending

The article discusses issues related to the development trends of the Russian mortgage lending market, reveals the essence and substantiates the relevance of the introduction of virtual technologies in the process of providing mortgage loans. The main purpose of the study is to analyze current trends in the Russian mortgage lending market, identify existing problems in the process of providing mortgage loans, and develop proposals for further development and improvement of this type of lending. Particular attention during the study was paid to the peculiarities of the use of virtual technologies in the banking business. The implementation of the research goal is due to the solution of the following tasks: the current state and current trends in the Russian mortgage lending market are analyzed; shortcomings of client banking services in the organization of mortgage lending are indicated; analyzed the features of the use of virtual technologies in mortgage lending and the practice of individual Russian banks using virtual reality technologies when applying for a mortgage; the key business indicators of banks that have implemented virtual technologies are given, and the impact of the increase in the share of mortgage lending on the efficiency of their activities is analyzed. To accomplish these tasks in the course of the study, methods of scientific knowledge were used: logical, analytical, the method of comparative analysis, statistical methods of information processing. As the study showed, at present, mortgages are a key driver of growth in retail bank lending, being a reliable, high-quality and profitable asset in the loan portfolios of Russian banks, and the mortgage lending market itself is promising, dynamic, but still not sufficiently technologically advanced. The use of virtual technologies by banks will improve the quality of customer service, will contribute to the growth of mortgage lending and the further development of technological innovations in the banking sector.

Methods of development and evaluation of movement qualities of senior school students in physical culture lessons in football

Methods of development and assessment of motor skills in physical education lessons for students are the main factor in obtaining information about the state of their physical fitness. Pedagogical control over the level of development of motor skills of high school students in physical education lessons in football helps to improve the management of the educational process, making adjustments to the planning of physical education and forecasting academic achievements. The main stages of the process of developing evaluation criteria for the manifestation of motor skills include: 1) the correct choice of control and selecti on of motor tests, which must meet the metrological criteria of reliability, objectivity and informativeness; 2) compliance of methods and means of control with the objectives of the study; 3) the adequacy of methods of statistical processing of the results of pedagogical control.
 The purpose of the study is aimed at introducing into the educational process of high school students means of developing motor skills and developing assessment criteria for physical fitness of high school students in physical education lessons.
 The scientific novelty is to develop quantitative and qualitative criteria for assessing the physical fitness of high school students in football lessons, to determine the impact of implemented tools and the dynamics of their changes in the results of phased control. The introduced method of development and assessment of motor qualities of high school students allows to promote the implementation of individual and differential approach in the process of physical education.

Econometric analysis and modeling of the dynamics of the balance of payments’ development in Azerbaijan

Purpose of the study. The study is devoted to econometric analysis and modeling of the dynamics of the balance of payments’ development of Azerbaijan, the formation of a mathematical and statistical trend that can give a perspective assessment of the development of the balance of payments. In accordance with the goal, the tasks of choosing the best composition of explanatory factors for the model were set, using the characteristics and criteria of correlation and regression analysis, econometric tests, calculating estimates of the nature and closeness of the relationship between the explanatory factors, dependent and independent factors, testing the stationarity of the series.Materials and methods. The official statistical data of the State Statistics Committee and the Central Bank of Azerbaijan, scientific works and studies of scientists, specialists, both Azerbaijani and foreign, in the fields of economics, mathematical and economic modeling were used. For the empirical analysis of non-stationary time series, statistical methods of information processing are used inthe work; to check the adequacy and test the multivariate model, the appropriate criteria and modern econometric procedures are used, taking into account the impact of exogenous factors. For calculations, application packages such as Excel and Eviews 8 were used.Results. A multivariate regression model has been created that makes it possible to conduct an economic and statistical analysis of the dynamics of the current account of the balance of payments; the form and directions of the functional relationship between dependent and independent variables were determined, variability of variables was estimated, the results of multivariate regression analysis using econometric methods were analyzed; the quantitative characteristics of the mechanisms of influence of explanatory factors on the balance of payments were measured and interpreted; correlation dependencies for causal dependencies were investigated in the model, the Granger test was performed and factors were identified that reliably explain the outcome with high probabilities based on the Fisher criterion; the stationarity of the model was measured based on the Dickey-Fuller test. With differences of the first and second degree, the stationarity of the autoregressive model was determined based on the Student’s criterion by changing the lag value. In the process of modeling, the initially constructed model, covering the years 1995-2017 with five factors such as foreign investment, exports, imports, manat exchange rate, general investments, showed insufficient adequacy, that is, non-stationarity of the current account series of the balance of payments. The exchange rate of the national currency, which is involved in the model as an explanatory factor, subjected the values of the dependent series to large fluctuations, an increase in the variance in the residue, which created non-stationarity and which can be explained by the denomination of the national currency in 2006. In the next step, the period covering 2006-2017 was examined. In addition, in the process of research, independent factors were added to the model, such as state budget deficit and foreign exchange reserves. As a result, a multifactorial econometric model was created. Conclusion. The constructed autoregressive model is quite adequate, demonstrates stationarity for the time series of the dependent variable and can be considered suitable for predictive values of the current account of the balance of payments. To develop specific recommendations for the long-term development of the balance of payments, the results of the study, substantiated by the analysis of the dynamics of the development of the balance of payments, make it possible to identify real trends in the balance of payments of Azerbaijan on the current account and determine its interdependence with other macroeconomic variables.

Internet Addiction as One of the Main Types of Addiction in Modern High-School Students

Nowadays, the Internet is a tool that is becoming imperative in everyday life. The pandemic in the modern world has exacerbated the problem of Internet addiction, creating the conditions for humanity to stay longer online. Since the majority of users are adolescents and young people, they form the main risk group, which is prone to Internet addiction. The purpose of the study was to explore the features of Internet addiction in high school students in modern Ukrainian society. The study included a comprehensive approach, which provided a combination of the following methods: theoretical (analysis, synthesis, generalisation, and systematisation of conceptual provisions on the problem under study); empirical (testing, in particular the method: “Chen Internet Addiction Scale” (CIAS adapted by L. Maligin, K. Feklisov); method of statistical processing. The paper reveals the problem of Internet addiction in high school students in modern conditions, the problems that arise in connection with such dependence, and considers the symptoms of Internet addiction and the reasons for its development. The study discusses the results of the investigation of Internet addiction in high school students, and also reveals differences in components of Internet addiction in adolescents with different levels of addiction. The findings show that most high-school students are prone to Internet addiction, which necessitates timely primary prevention of Internet addiction, starting in adolescence. In addition, a comparative analysis found that subjects with persistent Internet-dependent behaviour were more likely to have compulsive symptoms, withdrawal symptoms, tolerance symptoms, intrapersonal and health problems, time management problems, and stress

ANUSPLIN статистик загвар ашиглан Монгол орны агаарын температур, хур тунадасыг (1991-2020) өндөр нарийвчлалтай торын зангилааны цэгээр тооцоолох нь

The main objectives of this study were to use the statistical model (ANUSPLIN) to calculate the updated norms Mongolia of air temperature and precipitation (average for 1991-2020 according to the World Meteorological Organization) with high spatial accuracy for any grid, and to perform objective analysis in observation data. GTOPO30 (global digital elevation model, DEM) elevation grid data with 30-arc seconds (1 km) accuracy for estimating the mountain and orographic conditions of Mongolia, and monthly climate data of 137 meteorological stations of the National Agency of Meteorological and Environment of Mongolia (NAMEM), as well as monthly data of 3 automatic weather stations for glacial melting and accumulation research, were used to generate a series of data from 1991 to 2020 using climate statistical processing and comparison methods (linear regression equations). The data were used as peripheral and initial condition data for the statistical model (ANUSPLIN). The average spatial resolution of the data is ~ 0.75 ° or ~ 83.2 km for 137 meteorological stations, and ~ 0.87 ° or ~ 96.2 km for 3 automatic meteorological stations for ice melting and accumulation research. Hence, it can be considered that the hydro-meteorological and environmental research stations of Mongolia are relatively distributed sparsely. As a result of the statistical downscaling analysis, monthly air temperature and precipitation norms of Mongolia as an average of 1991-2020 were calculated for each grid with a spatial resolution of 0.0125° × 0.0125° (~ 1.4 × 1.4 km). The spatial correlation coefficients (SPC) were 0.97-1.00 and 0.88-1.00 for air temperature and precipitation, respectively, while the mean square error (DCA) was 0.24 °C to 1.03 °C for temperature and 0.02 mm to 3.61 mm for precipitation. For spatial average, the air temperature from the model was warmer by 1.1-1.4 °C in winter (December to January) and 0.2-0.6 °C in spring and autumn (March to May, and September to November) than for observation data, while it was very similar for the summer (June-August). But model precipitation was reduced by 0.5-2.9 mm during the warm season (May-October) than observation data. The monthly correlation coefficients between the statistical model and observation data were 99% or higher. Therefore, this high-resolution spatial data for air temperature and precipitation norms of Mongolia for grid points calculated using the statistical model ANUSPLIN can be used as fundamental data for various scientific studies such as environment, agriculture and biology.

Problems of investing in enterprises for processing and disposal of solid municipal waste

The issues of investing in enterprises engaged in the utilisation and processing of municipal solid waste are currently relevant due to increasing consumption, correspondingly increasing production and the amount of waste and require the most careful approach from the point of view of environmental security. The object of the research are the factors that determine the potential benefits of investing in enterprises of this industry. The methodological basis of the study was сompiled by general scientific methods of knowledge and the special scientific methods arising from it: logical, analytical, comparative analysis method, and information processing statistical methods. The authors present growth indicators in dividend payments and stock prices of individual American companies that provide services for the processing and waste disposal from those companies that operate in the residential sector, industry, and municipal organisations. The negative factors, hindering investment in this sector in Russia, have been reflected. The research results show the new development potential for the recycling and waste management industry.

Formation of teamwork skills among future teachers in the development of didactic games with traditional and digital components

The problem and the aim. A teacher of a digital school, according to the requirements of the standard of professional activity, must possess such universal qualities related to information and communication technologies, formed communicative competence, the ability to work in a team. The formation of the relevant skills within the framework of university education is complicated by a number of problems of a different nature. The authors suggest to improving the training of future teachers to organize practical activities for the development of didactic games integrating computer-free and digital elements. The authors suggest organizing a practice of designing a system of specially selected tasks to improve the training of future teachers of a digital school. Research methods. Gamification is used both as a technology for acquiring new knowledge and as a technology for team building. The method of team activity is used to development of didactic games. The pedagogical experiment involved 60 students of specialty 44.03.01 Pedagogical education (two training profiles, magister's degree level), Vyatka State University (Russian Federation). To assess team effectiveness the methodology of Lora Stack (five levels of team building) was chosen. The criterion χ2-Pearson was used as a statistical processing method. The assessment of the quality of educational results out using the author's testing of 50 tasks ("credited"/ "not credited") was carried. Statistical verification of the obtained results was made using Fisher's criterion. Results. Students of the experimental group were involved in teamwork on educational games: studied basic mechanics in didactic games; mastered interactive services; developed their own project, including both computer-free and digital elements. Statistically significant differences in the qualitative changes of the system by the levels of formation of teamwork skills, χ2emp 2 > χ2crit0.05 (10,244 > 9,488), were revealed. Statistically significant differences by the quality of professional training (φcrit=1,64<φemp=2,401), were found. In conclusion formulates the problematic questions, the answers to which allow us to determine the directions of the team's work on the development of didactic games: discussion of the purpose of the game and the gaming goal, the choice of basic mechanics and emerging competencies, the definition of rules and resources, etc.

Comparative analysis of problems and resources in the system of migrant children’s education (on the example of federal districts of the Russian Federation)

Introduction. The pedagogical need due to the migration situation in the country actualizes the need for research on the specifics of migrant children’s linguistic and socio-cultural adaptation in the regions. The research purpose is to identify reliable and significant differences in the specifics of problems of migrant children’s educational environment in federal districts of the Russian Federation. Materials and methods. The study involved 8,864 teachers (4,026 respondents were selected for the content analysis) working in multicultural classes from 8 federal districts. The study used a method of content analysis, survey methods and methods of mathematical and statistical processing (descriptive methods, cluster analysis, Kruskal-Wallis test). Research results. Peculiarities in the supportability of the educational process of migrant children in different federal districts of the Russian Federation are revealed: the greatest attention is paid to the problem in the North Caucasus Federal District (64%) and the Ural Federal District (67%). Teachers’ perceptions of the main difficulties they face in teaching migrant children are divided into two clusters: “Migrant children’s communication difficulties, difficulties in learning a new language” (66.9% of the respondents) and “Socio-cultural features of the education system for migrant children”, which includes seven subclusters, for which, when compared, reliable and significant differences were revealed in different federal districts: difficulties in interacting with parents are most relevant in the Ural Federal District (p=0.001) and Siberian Federal District (p=0.001), organizational-methodological problems – in the Northwestern Federal District (p=0.034) and Ural Federal District (p=0.034), problems with the mastering of the educational program – in the Central Federal District (p=0.001), Volga Federal District (p=0.001) and Ural Federal District (p=0.001), difficulties in socio-cultural integration – in the Central Federal District (p=0.001) and Far Eastern Federal District (p=0.001), difficulties in social-psychological adaptation – in the Central Federal District (p=0.01), Volga Federal District (p=0.01) and Far eastern Federal District (p=0.01). Conclusion. There are differences in the problem field of migrant children’s socio-cultural adaptation in federal districts of the Russian Federation: in the scientific-methodological support of the educational process, in the main difficulties that arise during the socio-cultural adaptation of migrant children. The main difficulties include: migrant children’s communication difficulties, difficulties in the interaction of a teacher with parents, organizational-methodological problems, problems with mastering the educational program, difficulties in socio-cultural integration, difficulties in socio-psychological adaptation. The data obtained can be used for psychological and scientific-methodological support of the educational process of migrant children in order to diagnose and control social-cultural adaptation.

Metrological approach to the assessment of the criteria of speed and strength training of middle school students in physical education lessons in athletics

Evaluation of the results of pedagogical control is the main factor for obtaining information about the state of physical fitness and effectiveness of educational work in physical education lessons. Obtaining an objective assessment of the level of development of speed and strength qualities of middle school students helps to improve the management of the educational process, making adjustments in the planning of physical education and forecasting academic achievement. The main metrological requirements for the development of evaluation criteria for the manifestation of speed and strength training of students include: 1) the correct choice of control, tests and their compliance with statistical criteria of reliability, objectivity and informativeness; 2) compliance of methods and means of control with the objectives of the study; 3) the adequacy of methods of statistical processing of test results. The purpose of the study is aimed at developing assessment criteria for speed and strength training of middle school students in physical education classes in athletics. The research methodology is aimed at substantiating the results of pedagogical control, development of quantitative and qualitative criteria of speed and strength training of middle school students of general secondary schools. The scientific novelty is to develop quantitative and qualitative criteria for assessing the speed and strength of middle school students, to determine the impact of the process of physical education on the dynamics of their changes in the results of phased control. The use of metrological tools and methods for assessing the speed and strength of middle school students allows the implementation of individual and differential approach to each student in the process of physical education.

Analysis of risk factors for blood transfusion in preterm infants based on statistical analyses

AbstractIn order to improve the analysis effect of risk factors for blood transfusion in preterm infants, this paper studies the natural gradient algorithm based on statistical analysis methods and analyzes the data processing effect of the algorithm. Moreover, this paper combines the analysis of risk factors for blood transfusion in preterm infants to build a factor analysis system based on statistical analysis algorithms and intelligent algorithms, and combines back propagation (BP) neural networks to build the statistical intelligence model. In addition, this paper designs experiments to verify the performance of the statistical intelligence model constructed in this paper, combines statistical methods to perform data processing, and analyzes experimental results through control experiments. From the experimental research results, it can be known that the statistical processing method of risk factors proposed in this paper has a certain effect. Simultaneously, through a large amount of data training research and analysis, it is confirmed that the system constructed in this paper has good data processing effects and can be applied to practice.

ESTIMATION OF MAXIMUM LIKELIHOOD IN THE CONDITIONS OF INSPECTIONS OF THE CURRENT STATE

The article discusses the algorithm and methods of statistical processing of one type of grouped data – interval-censored samples with overlapping observation intervals. The samples are censored by the observation time interval of the measured value. The samples consist entirely of such interval observations. The initial information was the data of one-time and multiple inspections of the structure in operation in order to detect damage in the form of cracks. The stage of appearance of the initial crack (macrocrack) in the zone of stress concentration is determined. A macrocrack, for objective reasons, cannot be directly detected during inspections. Examples of describing the time of formation of initial cracks in the form of interval-censored samples with intersecting observation intervals are presented. The main focus was on the development of methods for statistical processing of the studied samples. The maximum likelihood method was applied for parametric estimation of the time of appearance of macrocracks. Basic maximum likelihood equations are obtained for distributions with location and scale parameters. The computational procedure of the accumulation method with the use of Fisher’s information is applied. Expressions for calculating the variances of parameter estimates are obtained. An equation for checking the existence of a solution to the system of likelihood equations is presented. The appearance of macrocracks can have a different physical nature, for example, the accumulation of fatigue or instantaneous damage due to an overload exceeding the calculated one. Different physical nature implies different types of preventive work to prevent them and is described by different probabilistic models. A likelihood ratio criterion is proposed to test the statistical hypothesis about the situation of sudden appearance of macrocracks at a load exceeding the calculated one. The results obtained show the features of the structure of the studied samples and possible methods of statistical processing. Bibliography 11 titles Table 2.

FEATURES OF NEUROCOGNITIVE IMPAIRMENTS IN PATIENTS WITH MILD COGNITIVE DISORDER OF DIFFERENT ETIOLOGY

Introduction. Mild cognitive disorder (MCD) is a heterogeneous syndrome that involves problems with memory, speech, and thinking that are inconspicuous and do not affect the patient's independence and daily life. The article considers similarities and differences in the neurocognitive profiles of patients with mild cognitive disorders of various etiologies. Materials and methods. We examined 60 people: 30 subjects aged 50 to 83 years with a mild cognitive disorder of various etiologies and 30 relatively healthy individuals as the control group. All patients underwent a magnetic resonance imaging (MRI) examination of the brain. We used the psychometric method and the following scales: the Mini-Mental State Examination (MMSE), the Montreal Cognitive Assessment Scale (MoCA), the Frontal Assessment Battery (FAB), the Alzheimer's Disease Assessment Scale-Cognitive subscale (ADAS-cog), the Clinical Dementia Rating (CDR); the results were analyzed using the method of statistical processing. Results. According to the results of neurocognitive testing, no significant differences were found in the total scores (p = 0.6209), in particular, using the MMSE scale in patients with non-anamnestic (nMCD) and anamnestic (aMCD) мild cognitive disorder and мild cognitive disorder (aMCD). However, patients with nMCD showed significantly lower results with subtests: "attention and calculation" (p = 0.0443). According to the MoCA scale, patients with nMCD had a higher score vs. patients with aMCD (p = 0.0457), namely in the "delayed recall" subtests (p = 0.0102). Patients with nMCD had significantly lower results with the "attention and calculation" subtest (p = 0.0468). No significant differences were found between the groups of patients with MCD according to the results of testing with the FAB scale (p = 0.4778). According to some subtests of the ADAS-cog scale, patients with aMCD showed worse results with the "word recall" test (p = 0.0069) and "word recognition" (p = 0.0350). In patients with nMCD, lower scores were observed for the subtests "concentration and distractibility" (p = 0.0468), "number cancellation task" (p = 0.0217), and "passing the labyrinth" (p = 0.0015). Patients with aMCD showed significantly lower cognitive abilities than patients with nMCD. Consequently, patients with aMCD may be significantly at high risk of progression to Alzheimer's disease. Conclusions. After comparing the data of neurocognitive profiles, we established that in patients with anamnestic мild cognitive disorder, the clinical picture presented with a pronounced memory disorder, especially delayed recall, while the patients with non-anamnestic мild cognitive disorder were characterized by regulatory cognitive impairment (attention and calculation, reduced speed of thinking, impaired planning of activities). The MoCA and ADAS-cog scores had better diagnostic accuracy and specificity for the detection and differential diagnosis of mild cognitive disorders than the MMSE scale.

Представления супервизоров и супервизантов о профессиональной супервизии

This study is devoted to the expectations of supervisors and supervisees of the supervision process and their vision of the successful and unsuccessful supervision. We developed two questionnaires: one for the supervisor and other for the supervisee . A total of 103 respondents with various occupational experiences participated in the study, including 85 females and 10 males, and 8 respondents did not indicate gender. The age of the participants ranged from 22 to 61 years, with an average age of 38.92±11.22 years. The methods of statistical processing are: the principal component method with oblimin rotation, ANOVA. The results show that supervisee identifies three components of supervision process — knowledge, developing a professional identity and focusing on the client, while the supervisor considers all these aspects of the work to be complementary and inseparable from each other. The supervisor's expectations of the supervision differ from the supervisee's expectations, and these differences must be taken into account in education. Four factors (training, understanding/support, ethics, and novelty) are identified in supervisee’s expectations from the supervisor. The more experienced the supervisee is the less he focuses on gaining specific knowledge and techniques, and more on understanding his client. Work experience also helps to develop criteria for unsuccessful supervision — they are unambiguous and consolidated. Noteworthy the criteria for good supervision are not revealed. That means that the options for successful supervision are diverse, unlike unsuccessful supervision.

ПРИМЕНЕНИЕ ТАХОГЕНЕРАТОРА И РЕГУЛИРУЕМОГО ЭЛЕКТРОПРИВОДА ДЛЯ ЗАМЕНЫ МЕХАНИЧЕСКОГО УПРАВЛЯЮЩЕГО КАНАЛА ДЛЯ СИНХРОННО-СЛЕДЯЩИХ СОРТИРОВОЧНЫХ УСТРОЙСТВ КРУГЛОГО ЛЕСА

Relevance Automated sorting of timber is one of the main types of work in modern timber warehouses, timber processing and woodworking enterprises. The choice of a sorting device is determined by the cargo turnover of the warehouse, the assortment composition, the sorting fraction and the conditions for the shipment of timber to consumers, as a rule, when sorting round timber, chain timber transporters (log haulers) are mainly used. The main elements of longitudinal sorting timber transporters are: drive, traction and tension devices, overpass with timber storage. With automated sorting, longitudinal conveyors are equipped with log ejectors and command devices (sorting devices) that provide automatic control of their work. Command devices are divided into two groups: local and synchronous-tracking sorting devices. The group of synchronously-tracking sorting devices contains an analog or discrete carrier, the information on which must move synchronously with the movement of the chain conveyor of the log haul. However, to fix the movement of the conveyor, one element of the kinematic scheme of the conveyor is available – this is the shaft of the driven or driving hexagonal wheel of the chain conveyor. For a group of synchronously tracking sorting devices, the synchronization of the sorting device with the movement of logs to storage bins and dumpers is of great importance. The average rotational speed of the driving and driven wheels of the chain conveyor and, consequently, the linear speed of movement of round wood on the chain conveyor is constant. Thus, the following positions can be attributed to the positive properties of synchronous- tracking sorting devices: automatic maintenance of all forest storages by one sorting device without additional elements that correct the process of turning on log throwers. The negative points include a significant inaccuracy in the control of log throwers, which predetermined the small introduction of a mechanical ball drum of orders. Therefore, further research into the technology of transporting logs on timber conveyors, taking into account the synchronization of the operation of the log sorting device, is an urgent scientific and technical task. Aim of research To identify new solutions and trends in their development in the field of development and research of ways to control the sorting device on sorting timber conveyors. Research methods Bibliographic analysis, statistical processing methods, simulation modeling. Results To control discrete and continuous synchronously-tracking sorting devices, a method for implementing a control channel based on a tachogenerator and an adjustable electric drive is proposed, the possibility of controlling the speed of the control channel and controlling continuous sorting devices without the use of additional means is considered and proved. In the study, a simulation method was used in MatLab 2021a, which makes it possible to verify the operability of the developed implementation of the control channel, and to evaluate the errors in the performance of the control channel. The simulation results confirmed the possibility of practical application of the proposed method for implementing the control channel. Based on the results obtained, it can be concluded that this method of implementing the control channel can be used to control discrete sorting devices. The study used the simulation method in MatLab 2021a, which allows you to verify the operability of the developed implementation of the control channel, and evaluate the errors in the performance of the control channel.

Mining and Industrial Landscapes of Podillia as Potential Structural Elements of the Regional Eco-Network

The current state of the environment caused by irrational nature management necessitates the search for new approaches in the field of restoration and protection of biotic and landscape diversity. The new strategy for its protection is an ecological network that is being developed in Ukraine according to European requirements at the national, regional, and local levels. An integral part of the national eco-network is the territory of Podillia, for which an important topical issue is increasing the productivity of ecosystems and stabilising the ecological balance. One of the ways to optimise the regional eco-network of Podillia is to search for promising territories and include them in structural elements that will ensure its spatial integrity and representativeness. The most common objects of mining and industrial landscapes are quarrydump complexes that are original in their origin, structure, conditions, natural properties, spatial location, features of the geological structure, the nature of the biotic-landscape structure, and economic development. Therefore, the purpose of this study is to identify and describe the specific features of mining and industrial landscapes that require a set of measures for renaturalisation (reclamation, restoration of natural vegetation, reintroduction, etc.) within the latitudinal Buzhotsko-Buzko-Vovksko-Smotrytskyi eco-corridor of the regional eco-network of Podillia. General scientific (analysis, synthesis), laboratory and field methods, monitoring, comparison and statistical processing methods were used in this study. Factors of influence for the restoration of disturbed ecosystems of mining and industrial landscapes of Podillia were determined on the example of the Andriikovetskyi sand quarry and dump complex. It is established that edaphic conditions, elemental composition and organic matter content in the newly formed substrate, atypical relief, which differs sharply from the natural one, have the greatest influence. With the implementation of a set of measures for renaturalisation, the proposed quarry-dump complex can become a centre of zonal biodiversity as a renewable site – as a structural element of the regional eco-network