Toxicity of vapor-gas flows from technogenic substance

The relevance. Vapor-gas flows from technogenic substances (storage wastes of the mining industry), carrying a high amount of potentially toxic elements, are a big problem for the environment and the population, because metals and metalloids in the composition of emanations are in an easily digestible bioavailable forms and are able to easily penetrate into living organisms. The main aim of this study is an assessment of toxicity for living organisms of air mixtures containing gaseous products emitted by a surfaces of mine tailings freely located near settlements and under the influence of climatic factors and microorganisms. Methods. Carrying out experiments with white rats male Wistar, analysis of organs for the content of a wide range of elements by ICP-MS on a NexION 300D mass spectrometer (PerkinElmer, USA) (PNL  GGC IShPR TPU). In the experiment, a pooled sample of the waste substance was used. The sample was analyzed for the content of oxides of the silicate group by XRF using X-ray fluorescence spectrometer ARL-9900-XP (Thermo Electron Corporation, Switzerland) at the Laboratory of X-ray Spectral Analysis Methods of the IGM SB RAS; elemental analysis was carried out by ICP-MS using an ELAN-9000 DRC-e instrument Perkin Elmer, USA (HAC Plasma). Results. Under the influence of vapor-gas emanations from the substance of arsenide tailings of the Tuvacobalt plant on a group of rats male Wistar, pathological changes occurred in the experimental group. Small foci of hemorrhages formed in the lungs, the tissues became edematous and inflamed. The liver of all animals increased, the share structure became sharply expressed, the color became light beige. Single hemorrhages were found in the kidneys. The vessels of the meninges are dilated, petechial hemorrhages are observed. The synthetic function of cells and the stability of cellular and intracellular membranes were disrupted, first of all, the endothelium of blood vessels was affected, the physiological functioning of organs and tissues was disrupted with the accumulation of intermediate products of biochemical reactions, determined macroscopically. Also, dystrophy of internal organs was determined, in particular, the liver, lungs, kidneys, and brain. Elemental analysis of animal organs showed the accumulation of toxic elements in comparison with the control group. The most characteristic elements, the excess of which was recorded in most cases, are mercury and arsenic. They were unevenly distributed throughout the organs. Mercury accumulated mainly in the lungs, kidneys and liver, while arsenic accumulated mainly in the liver and brain. This may indicate the entry of mercury and arsenic ions in a biologically available form into the bloodstream by inhalation, and local irritating and toxic effects on the lungs were not prevailing, and the liver was the most damaged organ according to the results of toxicochemical and morphological studies. The homeostasis of micro and macro elements is finely regulated, and any concentration imbalance in the form of a deficiency leads to a progressive decrease and disruption of normal biological function, to severe physiological and clinical outcomes, which we observed from the results of the experiment. The data obtained proved the acute toxic effect of vapor-gas flows on living organisms, and also confirmed the possibility of the removal of many chemical elements in easily accessible and assimilable forms

MECHANISMS FOR ENSURING SUSTAINABLE DEVELOPMENT AND FOOD SECURITY OF A SOVEREIGN COUNTRY

The social and climatic factors that affect the global and regional food systems of states and regions have been highlighted in the article. The importance of ensuring food security and balanced nutrition of the population at a time of economic hardship to reduce the vulnerability of the economy and strengthen the political stability of the Russian Federation, to build capacity to withstand the crisis and rapid recovery from it has been noted. The problems of food security and tasks aimed at preventing internal and external threats, sustainable development of domestic production sufficient to ensure food independence and state sovereignty have been considered

THREATS TO INDUSTRIAL POLICY, TRADE AND KNOWLEDGE SHARING IN A GLOBAL EMERGENCY

The coronavirus epidemic 2019-nCoV in China has already led to a slowdown in the country’s economic growth and the fall of the yuan exchange rate on the stock exchanges. The Russian government has banned visa-free tourist trips between Russia and China and the issuance of work visas to Russia for Chinese citizens; Australia, New Zealand, Japan, Pakistan, and Italy have imposed similar bans. Great Britain, South Korea, Singapore and New Zealand have imposed quarantine for arrivals from China. Military aircrafts of Russia, India and Thailand take their citizens out of China. The US authorities have declared public health emergency and ban on the entry of all foreign citizens who have visited China over the past two weeks. This article gives forecast, how these measures of the governments will affect on global academic mobility and economic growth

Intermediate result of negative consequences of the epidemic of the new coronavirus infection for the global economy

The epidemic of the new SARS-CoV-2 coronavirus infection slowed global economic growth and became the main threat for the global economy and financial markets in 2020. Authorities in many countries around the world have declared a health emergency. Without the experience of state quarantine, countries have faced negative consequences for citizens, the economy and financial market participants. The introduction of temporary regulatory easing in the context of the spread of a new coronavirus infection assisted to partially limit the negative consequences. The next few months will, probably, have a particularly strong impact on small business, as government support schemes are reduced or ceased. The article reveals the main consequences of the new coronavirus infection for the global economy

Analysis of Economic-Technical Potential of Renewable Power Sources for the Establishment of National Renewable Energy Center in Ninh Thuan Province, Vietnam

Currently, Vietnam‘s energy source structure is being changed by which renewable energy sources play more important role to meet the electricity demand and reduce greenhouse gas emissions from fossil energy sources. Vietnam’s energy development strategy determines to build some renewable energy centers, of which Ninh Thuan is the first province designated to become a national renewable energy center. This is based on Ninh Thuan’s endowment as a province having the largest renewable energy potential in Vietnam. Development of a large renewable energy center allows power system planners to overcome the mismatch in timescales associated with developing transmission power grid and renewable energy generation. Besides, renewable energy center can facilitate a significant pipeline of large-scale renewable energy and storage projects. However, Ninh Thuan province is far away from the major load centers of Vietnam so the calculation and analysis of economic indicators need to be studied. This paper will present the results of the analysis of economic indicators of major renewable electricity sources in Ninh Thuan (onshore wind power, offshore wind power, solar power) to provide scientific arguments for developing a renewable energy center in Vietnam. Also the paper addresses the problem of the large-scale penetration of renewable energy into the power system of Vietnam. The proposed approach presents the optimization of operational decisions in different power generation technologies as a Markov decision process. It uses a stochastic base model that optimizes a deterministic lookahead model. The first model applies the stochastic search to optimize the operation of power sources. The second model captures hourly variations of renewable energy over a year. The approach helps to find the optimal generation configuration under different market conditions

Didactic and educational aspects of young female football players training

Шалар, О. Г. Дидактико-виховний аспект тренування юних футболісток [Текст] / О. Г. Шалар, О. С. Еделев, В. О. Єфімако // Педагогіка, психологія та медико-біологічні проблеми фізичного виховання і спорту : наукова монографія / за ред. проф. С. С. Єрмакова. – Харків : ХДАДМ (ХІПІ), 2008. - № 11 – С. 16-20.Успішність навчання у юнацькому спорті не можливе без організації певних виховних заходів. Організація тренувального процесу юних футболісток має відбуватися за певних умов: правильна постановка завдань, необхідний об’єм тренувальних навантажень, дотримання принципів спортивного тренування, досвід та освіченість тренера, зборів гравців команди з батьками, керівництвом команди, зручний розклад, наявності матеріально-технічної бази. Успешность обучения в юношеском спорте не возможно без организации определенных воспитательных мероприятий. Организация тренировочного процесса юных футболистокдолжна происходить по определенным условиям: правильная постановка задач, необходимый объем тренировочных нагрузок, соблюдение принципов спортивной тренировки, опыт и образованность тренера, сборов игроков команды с родителями, руководством команды, удобное расписание, наличие материально-технической базы. Success in youth sport training is impossible without organization of some educational events. Architecture of training process of juvenile football players should descend on defined conditions: straightening statement of the problems, necessary volume of training loads, keeping of principles of sports training, experience and erudition of the trainer, collectings of players of a team with parents, a management of the team, the convenient schedule, presence of material baseline