Modeling Multivalued Dynamic Series of Financial Indexes on the Basis of Minimax Approximation

In this article, the problem of modeling a time series using the Minimax method is considered. The expediency of using Minimax to identify points of change in trends and the range of changes in the graphical figures of technical analysis is justified. Spline approximation of the dynamic process with range constraints was performed to improve the quality of the model. Investors are advised to refrain from making hasty decisions in favor of holding reliable shares (such as PJSC Novatek shares), rather than selling them. The purchase of new shares should be carefully analyzed. Through an approximation of the dynamic number of the applicable optimization problem of minimizing the maximum Hausdorff distances between the ranges of the dynamic series and the values of the approximating function, the applied approach can provide reliable justification for signals to buy shares. Energy policy occupies the highest place in the list of progress ratings according to news analytics of businesses related to the energy sector of the economy. At the same time, statistical indicators and technologies of expert developments in this field, including intellectual analysis, can become an important basis for the development of a robotic knowledge program in the field under study, an organic addition to which is the authors’ methodology of development in energy economics as in energy policy. This paper examines the model of approximation of the multivalued time series of PJSC Novatek, represented as a series of ranges of numerical values of the indicators of financial markets, with constraints on the approximating function. The authors consider it advisable for promising companies to apply this approach for successful long-term investment.

Analysis of main statistical indicators of oral and pharyngeal cancer in the Republic of Uzbekistan

Relevance: According to GLOBOCAN data for 2020, oral and pharyngeal cancer ranked 25th in mortality (98 412 cases, 0.5% of all cancer deaths) and 26th in the number of diagnosed new cases (48 143 cases, 0.5% of all new cancer cases) in the world. Oral and pharyngeal cancer incidence is growing steadily globally and in the Republic of Uzbekistan. Oral and pharyngeal cancer ranks 16th in the structure of cancer incidence in the Republic of Uzbekistan, with a rate of 1.8 per 100 000 people. The purpose of the study was to analyze the main statistical indicators for tumors of the oral cavity and pharynx in the Republic of Uzbekistan in 2015-2021. Methods: We analyzed the main statistical indicators for tumors of the oral cavity and pharynx in the Republic of Uzbekistan for 2015- 2020 obtained from the Reporting Form #7 “Information about malignant neoplasms cases.” Results: Over the past six years, the incidence rate per 100,000 people has increased from 1.4 in 2015 to 1.8 in 2020. In 2015-2020, in the Republic of Uzbekistan, 2,240 patients died from malignant neoplasms of the oral cavity and pharynx. The mortality rate per 100,000 people decreased from 1.4 in 2015 to 1.2 in 2020. Conclusions: Tumors of the oral cavity and pharynx rank 16th in the structure of cancer incidence in the Republic of Uzbekistan and tend to grow. A recent increase in oral and pharyngeal cancer incidence and its late detection could be explained by worsening detection and diagnostics. The stabilization of oral and pharyngeal cancer mortality results in socio-economic losses for the Republic. The provided statistical data is the basis for improving the indicators of incidence and mortality related to oral and pharyngeal cancer in the Republic of Uzbekistan

Features of intraregional trade turnover of Southern Federal District

The economic interaction of the constituent entities of Russian Federation is manifested in the strengthening of mutual trade contacts between them. An indicator of mutual trade between regions is intraregional trade turnover. The purpose of this article was to identify and substantiate the features of the intraregional trade turnover of Southern Federal District based on data on its levels, dynamics and structure. At the same time, the trade turnover was considered as a result of the development of mutual trade flows and an indicator of the effectiveness of trade and economic relations between regions. In the course of the study, the economic and statistical method prevailed, associated with the calculation, analysis and interpretation of relative statistical indicators, their visualization through graphic-analytical images. Based on the system of statistical indicators, the article examines the specific features of intraregional trade turnover of Southern Federal District in comparison with data from other federal districts of Russia and national levels. Southern Federal District occupies insignificant positions in the ranking of the federal districts of Russia in terms of retail and wholesale turnover, which does not correspond to its resource, production and demographic potential. The authors identified the following features of intraregional trade in Southern Federal District: the predominance of the segment of private trade enterprises in retail trade; a high share of the market and fair trade format in the sale of consumer goods; dominance of stationary outlets in retail turnover; expansion of network retail. The materials of this article have analytical significance and can be used as an information basis for making managerial decisions in the field of regional economic policy to activate mutual trade flows of the regions of Southern Federal District and expand mutual trade contacts between them.

Vocational and Educational Attitudes of Young People in the Context of the Migration Outflow of the Population of the Arctic Territories (on the Example of the Murmansk Oblast)

The article deals with the peculiarities of the regional context of socialization of the youth of the subjects of the AZRF in the field of implementation of vocational and educational attitudes. The paper presents a summary analysis of statistical indicators of migration gain (loss) in the AZRF, including the structure by age groups, as well as data on the dynamics of the number of students studying at different types of ed-ucational institutions from 2005 to 2020. Statistical indicators of migration gain (loss) have revealed a trend of a sharp decrease in the outflow of population in the Russian Arctic. The obvious reasons for this situation were the consequences of the COVID-19 pandemic, which significantly increased the changes in the logic of the reproduction of the social structures, in particular, there was a migration turn towards provincial subjects, as the most favorable for life, in contrast to megacities and large cities. It actualizes and problematizes the possibilities of the environment of remote regions for the optimal socialization of young people. The authors of the article focus on environmental factors that contribute to the formation and implementation of professional and educational attitudes of young people in the region. The purpose of the article is to study the professional and educational attitudes of young people in the conditions of the migration outflow of the population. The object of the research is young people studying in the Murmansk Oblast. The choice of a specific subject of the Russian Arctic (Murmansk Oblast) is due to a number of reasons: intensive migration loss of population; significant reduction in the number of educational institutions; reduction in the number of students in comparison with other subjects of the Russian Arctic. The empirical basis of the article was formed by the results of a sociological study conducted in April–May 2021 in the Murmansk Oblast using the online survey method among graduates of educational institutions of secondary general (523 people), secondary vocational (519 people) and higher education (bachelor level) (283 people).

Performance Evaluation of Temperature-Based Global Solar Radiation Models—Case Study: Arar City, KSA

Solar radiation is considered the main renewable energy source which reshapes the global sustainability plan for future development. Due to the lack of solar radiation measurements, this work investigates the performance of several temperature-based hybrid solar radiation models combining the parametric, statistical and satellite data approaches to estimate the global solar radiation on a horizontal surface. Over 35 years of meteorological data in the new location, Arar City, KSA (Latitude 30°96′ N and longitude 41°05′ E) are employed to establish and validate the models. These models are validated using two datasets with different averaging time spans to investigate the accuracy and reliability of different models as forecasting tools for the solar radiation. The mostly common statistical indicators are calculated to identify the most accurate model. The results show that Model (1) has the best performance among all models with high reliability as a solar radiation forecasting tool in this new location. This model is also validated against the widely-used datasets, namely NASA, On-Site measurements and PVGIS-SARAH data. The model shows excellent values for statistical indicators with high values of coefficient of determination, R2 > 0.955, presenting the best performance regardless of the time span of the validation datasets.

International legal and methodological support of road traffic safety: concepts and essential features

The article aims to learn about international legal and international methodological support of road traffic safety and transport operation. A number of statistical indicators, which testify to the catastrophic state of road traffic safety both in the world in general and in Ukraine in particular, are presented. The development of the definition of this concept is proposed to carry out in the classical way: by highlighting its corresponding essential features. These include: object, subject, system and purpose. The object is the sphere of road traffic of the motor transport specifically. The subjects are the international institutions (UN, WHO, World Bank, etc.) and international public associations. The system of such support is classified into eight main groups according to the sphere of regulation of the relevant legal relations within the general sector of road traffic safety. In turn, the international methodological support in this sphere is classified into seven types according to its focus. The main international conventions, resolutions and other decisions, first of all, the UN’s ones, and the international agreements forming the system of the international legal support of road traffic safety are presented. The purpose of this support is to increase road traffic safety around the world. Hence, the international legal and methodological support for road traffic safety is a set of regulations of an international nature, information materials issued with the participation of official institutions with international status, as well as international public associations aimed at ensuring traffic safety, reducing mortality and road traffic injuries in different countries of the world.

ANALYSIS OF THE STRUCTURE AND PREDICTION OF THE MORBIDITY OF CHILDREN IN THE KAMENSKY DISTRICT

В статье приведены анализ и прогнозирование основных статистических показателей, характеризующих распространенность различных нозологических форм заболеваний среди детского населения Каменского района. Для определения качества медицинской помощи, предоставляемой в детской поликлинике, среди жителей района был проведен опрос, в ходе которого была выявлена частота посещения данного амбулаторно-поликлинического учреждения по поводу заболевания и с целью профилактики, оценен уровень оказываемой помощи по различным критериям, определены как положительные, так и отрицательные аспекты деятельности, а также предложены методы повышения эффективности работы поликлиники. С целью предвидения основных показателей заболеваемости был построен прогноз. В качестве данных для прогнозирования были использованы показатели заболеваемости детского населения прошлых лет. Прогнозирование осуществляется с помощью метода экспоненциального сглаживания с использованием линейного тренда и выбором оптимальных параметров сглаживания. Экспоненциальное сглаживание является интуитивным методом, который взвешивает наблюдаемые временные ряды неравномерно. Последние наблюдения взвешиваются более интенсивно, чем отдаленные наблюдения. Основной целью анализа и прогнозирования является выявление основных тенденций в изменении структуры заболеваемости, а также определение влияния качества и доступности оказываемых медицинских услуг в поликлинике на здоровье детского населения Каменского района The article presents the analysis and prediction of the main statistical indicators characterizing the prevalence of various nosological forms of diseases among the children of the Kamensky district. To determine the quality of medical care provided in the children's polyclinic, a survey was conducted among the residents of the district, during which the frequency of visits to this outpatient clinic for the disease and for the purpose of prevention was revealed, the level of care provided was assessed according to various criteria, both positive and negative aspects of activity were identified, and methods of improving the efficiency of the polyclinic were proposed. In order to anticipate the main indicators of morbidity, a forecast was built. The indicators of morbidity of the child population of previous years were used as data for forecasting. Forecasting is carried out using the exponential smoothing method using a linear trend and the choice of optimal smoothing parameters. Exponential smoothing is an intuitive method that weighs the observed time series unevenly. Recent observations are weighed more intensively than distant observations. The main purpose of the analysis and forecasting is to identify the main trends in the change in the structure of morbidity, as well as to determine the impact of the quality and availability of medical services provided in the polyclinic on the health of the children's population of the Kamensky district

SUSTAINABLE DEVELOPMENT - POVERTY IN EUROPE

The paper presents some aspects about poverty in Europe taking also into consideration the new pandemic context. Some indicators linked with the topic were chosen. The indicators refer to people at risk of poverty or social exclusion, severally materially deprived people, unemployment and employment, government debt. The information was analysed by means of statistical indicators. At the end of the paper, a few aspects regarding the impact of the COVID-19 crisis are presented.

The second cassation in the arbitration proceedings: The genesis, results of the procedural activity and prospects for uniformity of judicial and arbitration practice

The article considers relevant issues on the topic of the Genesis and results of the procedural activity of the Judicial Board for economic disputes of the Supreme Court of the Russian Federation as the second cassation instance. Taking into account, on one hand, the relative recency of this court in the arbitration process, and the significance of its role in the aspect of ensuring uniformity of judicial and arbitration practice on the other, this may prove to be of certain importance. The authors aim to summarize and analyze the judicial and statistical indicators of the second cassation for the 2015-2019 period. The methodological basis of the article consists of general scientific (analysis, analogy, description, synthesis, system-oriented) and private scientific methods (statistical, comparative legal, formal legal). Based on the results of the study, the main trends and problems of the second cassation review of judicial acts on economic disputes are identified. Based on the analysis of statistical indicators of cassation activity, the authors come to the conclusion that it is necessary to modernize the structure and functioning of the second cassation instance and increase its role in ensuring uniformity of judicial and arbitration practice. In conclusion, generalized proposals aimed at improvement of the efficiency of the second cassation instance are formulated. The study was conducted on the basis of judicial statistics published on the website of The Judicial Department of the Supreme Court of the Russian Federation.

Updating the Selection Principles of Content Components in Linguistic Education of Foreign Non-Philological Students

The authors of this article point to the need to update the content of language education of foreign non-philological students of the Ukrainian higher education institutions. Updating the content component of the Ukrainian language teaching system as a foreign language foregrounds the following factors: the demands of a contemporary information society for the tasks and results of foreign language teaching, modern standards of language education, conditions for the teaching process organization of language disciplines to foreign students of the Ukrainian higher education institutions, and communicative needs of foreign students with a new mindset. An act of communication is considered to be the basic unit of teaching Ukrainian as a foreign language, which linguistic incarnations are discourse sentence expressions and discourse texts. An effective updating enabler of a language education content of foreign non-philological students is to identify most suitable general methodological principles for the selection of teaching materials. Techniques of educational technologies in the empirical spectrum of methodology are developed precisely in terms of linguodidactic principles. The present research theoretically substantiates the distinction of the selection principles for the content components of a language education system of foreign non-philological students. It describes the array of experimental tools for the expert assessment of practitioners as well as highlights statistical indicators of the survey results. The article also analyzes the discussion of the principles proposed by the authors for the selection of language materials for teaching Ukrainian as a foreign language to non-philological students. This article also exemplifies the results of a holistic assessment by experts of a probable application of the principles suggested in questionnaires on the selection of learning materials for textbooks / manuals that are used in the actual learning process. Statistical indicators of the imparted expert evaluation have verified the relevance to improve existing textbooks / manuals and bring them closer to communicative needs of modern foreign students with mosaic thinking, the requirements of up-to-date educational language standards, and conditions for the teaching process organization of language disciplines to foreign students of the Ukrainian higher education institutions.