METHOD FOR PREDICTING PARAMETERS OF THE AEROIONIC MODE IN OPEN TERRAIN GROUND AREAS

Purpose. The scientific work is devoted to the development of a new method for forecasting aeroionic mode in working areas at industrial sites, taking into account ionizing sources and surrounding obstacles. Methodology. To find the concentration of positive aeroions, dust and negative aeroions, we use 3D mass transfer equations that take into account the rate of recombination of ions having different polarity and the rate of recombination of ions with dust particles. The numerical solution is based on the integration of the mass transfer equations using the finite-difference method, which turns out to be stable for any step in time. To determine the components of the air velocity vector, a three-dimensional model of the potential flow is used, where the Laplace equations for the velocity potential are the modeling equations. Findings. The mathematical method of numerical calculation of the concentration of positive, negative aeroions and dust has been developed. A feature of the method is the possibility of predicting the aeroionic mode, taking into account all physical factors that significantly affect the formation of concentration zones of aeroions in working areas at industrial sites. The method is not tied to a particular industrial site, it allows us to estimate the value of the concentration of aeroions both locally and in the entire calculated region. Originality. A method for prediction of aeroionic mode in working areas is developed based on 3D modeling of the propagation of negative, positive aeroions and dust under the influence of wind and diffusion, which allows to obtain results at each point of space or in a specific cross-section. Practical value. The proposed method of forecasting was used to solve the problem of estimating aeroionic mode in industrial zones in the open area of the industrial site of the Dnipro oil extraction plant in the presence of emission sources: positive aeroions during the operation of vehicles and respiration of workers; dust during the movement of workers and vehicles; negative aeroions of the ionizer installed in the working zone. The regularities of changes in the concentration of aeroions of various polarity and dust at a height of 1.7 m are determined, which corresponds to the position of the respiratory organs of workers. Quantitative results are needed in assessing the permissible working conditions in the workplaces of industrial sites of enterprises when creating new jobs and reengineering existing ones

Features of Motivation among PSU Students (Based on Questionnaire and T. I. Ilyina's Methodology)

This article reveals the methodology of sociological research of a case study among first-year students of Polotsk State Universit. The aim of this study is to identify the motivation for their learning. The results of the study are indicated and substantiated. They indicate that the main motives for obtaining higher education are related to the need for belonging, recognition and self-respect

Features of Motivation among PSU Students (Based on Questionnaire and T. I. Ilyina's Methodology)

This article reveals the methodology of sociological research of a case study among first-year students of Polotsk State Universit. The aim of this study is to identify the motivation for their learning. The results of the study are indicated and substantiated. They indicate that the main motives for obtaining higher education are related to the need for belonging, recognition and self-respect

ЭКОЛОГО-ЭПИДЕМИОЛОГИЧЕСКИЙ АНАЛИЗ ЗАБОЛЕВАЕМОСТИ КИШЕЧНЫМИ ИНФЕКЦИЯМИ НАСЕЛЕНИЯ Г. РУБЦОВСКА

Проведен эколого-эпидемиологический анализ заболеваемости кишечными инфекциями населения г. Рубцовска за пятилетний период с учетом: возраста, социального статуса больных, этиологической структуры заболевания. Для установления преобладающего пути передачи инфекций учитывались данные по микробиологическому анализу питьевой воды. В течении 5-ти лет на территории г. Рубцовска отмечается устойчивая тенденция к повышению уровня заболеваемости населения кишечными инфекциями с преобладанием острых кишечных инфекций неустановленной этиологии. Среди детского населения уровень заболеваемости острыми кишечными инфекциями более чем в 3 раза превышает таковой среди взрослого населения. Заболеваемость острыми кишечными инфекциями среди детей, не посещающих дошкольные учреждения в 5 раз выше, чем среди детей дошкольных учреждений. Качество питьевой воды не оказывает существенного влияния на состояние заболеваемости кишечными инфекциями населения г. Рубцовска. Ключевые слова: эколого-эпидемиологический анализ, заболеваемость, острые кишечные инфекции, этиологическая структура заболеваемост

Darwin and Dokuchaev. Interaction of ideas

Soil scientists have long believed that the first printed work of V.V. Dokuchaev was his diploma thesis in 1871 “On alluvial sediments along the Kasna River of the Sychevsky district of the Smolensk province”, which he defended after graduating from St. Petersburg University, under the guidance of Professor P.A. Puzyrevsky. However, there is a little-known article written under the pseudonym of V. D-chaev, “Darwin's theory before the court of Holy Scripture as the oldest historical botanical and zoological monument”, published in 1869 in the spiritual journal “Strannik” (“Wanderer”), which was written by V.V. Dokuchaev shortly after graduating from the theological seminary. The first work of V. Dokuchaev is of interest due to the fact that it appeared in the transition period from Dokuchaev-theologian to Dokuchaev-naturalist. Analyzing the article, written on 52 pages, one can understand how seriously the young man approached this publication. According to the former seminarian, the Holy Scriptures are the main and most reliable source of information about the past. In formulating his attitude to Darwin's theory, he relies on the work of M.A. Sibirtsev and spiritual father Matveevsky, finding in them arguments in support of his point. In addition, Dokuchaev mentions and cites the publications of more than two dozen geologists, mostly foreign ones. However, it should be noted that most of the works he refers to were popular sources. Objections to Darwin on the basic aspects of evolutionary theory show the spiritual maturity of the future scientist. The manuscript is still a student's article, but it contains the analysis of the problem of time, which later became the basis of Dokuchaev's teaching about time as a factor of soil formation. Dokuchaev came to understand the law of love as a universal law of the commonwealth that rules the world, which in fact is the basis of the ecological perception of the world

Experience of using the game methods of active training of students in the department of public health and health care

The article discusses the benefits of using interactive teaching methods, the development of skills and professional competencies as a result of the use of game techniques. Examples of igropraktik when teaching students at the Department of Public Health and Health.В статье рассматриваются преимущества использования интерактивных методик обучения, развитие навыков и профессиональных компетенций в результате применения игровых методик. Приводятся примеры игропрактик при обучении студентов на кафедре общественного здоровья и здравоохранения