The main sources of greenhouse gas emissions in Russia are analyzed. It is shown that climate change is accompanied by an increase of natural disasters and emergencies. Ways of adaptation to climate changes in Russia are formulated.

This article discusses the features of physical training in higher educational institutions of the Ministry of Internal Affairs of Russia. The expediency of integrating the system of physical training into an interdisciplinary educational complex is described. The main aspects that will be affected by the integration of physical training are analyzed.

The article discusses the need for physical culture as a recreation for working women, the role of motor activity in solving problems of prevention of occupational diseases and emotional stability. The possibilities of karate classes in women's groups are shown, as well as the features of the construction of such classes.

The article discusses the possible conditions for the use of aqua aerobics classes with mature women as a possible way to optimize the functional state, emotional readiness for professional activity and social adaptation. Taking into account the physiological characteristics of women of the chosen age, an important condition is the use of an individual approach and the formation of separate groups to improve the health and general well-being of women.

The article discusses the current problems of bullying in the student environment, the concepts of "bullying" and "mobbing", their occurrence. Some of the forms of aggression, as well as their influence, are described. This material helps to focus attention on such an acute and urgent problem that almost everyone has faced.

The paper considers the issue of the impact of friction wedges wear on the wear of the crest thickness of wheel sets of wagons operated on the railways of the Republic of Uzbekistan. The analysis of the uncoupling of freight cars for unscheduled repairs due to malfunctions of the thin ridge of the wheel pairs and an overstatement/understatement of the friction wedge relative to the support surface of the spring beam is more than normal. The methods of combinatorial and statistical analysis of the initial data were used. The parameters of the bogies of freight wagons that have the greatest impact on the wear of the wheel crest are determined. The ways of reducing the wear of the ridges of the wheels of freight cars in operation by tightening the standards for the release of bogies from repair in terms of quality and condition of friction wedges are given.

The article deals with the problem of discoloration of high-color surface natural waters, which is insufficiently studied. Waters that contain humic substances are difficult to clean. In this regard, the problem of purification of high-color waters is very relevant. An effective method of purification of high-color surface waters using clay minerals is proposed. The results of experimental studies of surface water purification from chromaticity using filtration through an aluminosilicate adsorbent activated by sapropels are presented. The high quality of purified water with an activated adsorbent makes it possible to use it to obtain water of household and drinking quality.

A grease on the basis of rapeseed oil with the antioxidant additive diphenylamine (DPA) has been investigated. It is shown that the temperature of additive introduction influences the oxidative stability of the final product. It is noted, that the optimum temperature range for the addition of the additive is 85-95 ^oC during cooling. The parameters of colloidal stability, shear strength and drop point are the best, the content of free acids after 10 days did not change significantly (increased by 8%), the wear index remained at an acceptable level of 0.96-1.11. This lubricant is recommended for use in medium-loaded friction units.

The article deals with the application of methods of hardware-in-the-loop simulation for the formation of skills in working at automated workplaces of the locomotive complex among students of traction specialties. It is proposed to use in the educational process an interactive model of a locomotive depot, equipped with software and hardware tools for simulating real automated workplaces of employees of the locomotive complex and the traffic service, which will allow practicing the implementation of professional tasks for organizing the operation and maintenance of locomotives, as well as organizing work of locomotive crews.

The article discusses the main features of the daily work of occupational safety specialists, highlights the most complex aspects of this activity, most of which can be simplified by the active use of modern computer technologies in the workplace. As an example, the analysis of the program "Automated workplace "labor protection", which is freely available, is given.

In the railway industry, the lack of spare parts can have negative consequences such as downtime and financial losses. The process of replacing a damaged spare part can take a long time, especially if it is not locally produced. The purpose of this study is to analyze potential materials that can be used to manufacture rail car components.

The aim of the study was to study the results of fitness programs used in physical education classes and their impact on the health indicators of girls studying at the university. Health indicators such as cardiovascular endurance, flexibility and strength were considered. The study was conducted over 10 weeks. The results obtained showed a positive increase in endurance and functionality of the cardiovascular system and flexibility, and at the same time, there was no change in the indicators of muscle strength.

This article reveals the elements of prevention of emergency situations that are associated with fires and explosions in the building. The preventive measures necessary for effective prevention are described, and the functional principles on which fire fighting methods are based are also described.

The article discusses the occupation of environmental protection centers on the railway. Changes in the intensity of sources and factors influencing the natural environment are predicted, as well as the likely changes in the biosphere as a result of this. Monitoring allows planning measures not only against future unhealthy impacts, but also preventive measures.

The article presents the results of modeling the stress-strain state of a plate with a concentrator in ANSYS. The algorithm of the study, the sequence of operations in the applied software package are described in detail. The analysis of the results of the study of a steel plate by the finite element method was carried out.

In large cities, the observed infantilization of young people occurs against the backdrop of global population aging and leads to an increase in the average age of motherhood and / or marriage. The danger of this trend is to increase the risk of various postpartum complications and other long-term pathologies. The authors focus on the possibility of optimizing the postpartum recovery of the physical and psychological parameters of women over 30 years with the help of specially organized fitness training.

The article discusses the importance of information overload in professional and educational activities as a factor inducing an increase in the frequency of using aggression (including verbal) as a form of adaptive reaction. Various approaches to improving the environment of the information environment and optimizing the activities of representatives of various age and professional groups of the population associated with significant information loads are considered.

Uzbekistan does not produce primary aluminum. Therefore, reducing the weight of railway rolling stock is possible by using scrap metal production waste, for example, window, or parts made of aluminum alloys that have worked out their working life. The paper presents the results of a study on the possibility of using aluminum scrap for the manufacture of finished products.

The article provides a comparative analysis of the environment dynamic simulation of technical systems SimInTech and MATLAB Simulink. The process of modeling in alternative programs is compared. Mathematical models of control systems for speed control of an electric motor of an independent excitation DC motor in the Matlab program and the SimInTech program are compared. The results of model calculations are presented.

The article is devoted to the health protection of students and teachers in educational institutions. The results of studies of factors at the workplace of personal computer users are presented. The problems of evaluation and control of factors with their combined action on the human body are shown.

The article discusses the main objectives of the EIA during the reconstruction of the refinery and the impact of the planned economic activity on the environment, public health and related social, economic and other consequences.

The purpose of the study is to develop a method for determining the dimensional forces acting on the frame of a subway car bogie. Theoretical studies of the loading of the subway car bogie frame using the finite element method under the action of vertical, lateral and longitudinal forces on it have been carried out. As a result of the research, the installation locations of the strain gauges and the method for processing the received signals were chosen to determine the dimensional force effect on the frame of the subway car bogie during running dynamic tests of the cars.

The design of elastic transition pads of modern domestic passenger cars is analyzed. The information on the operational reliability of a large set of passenger cars for the first inter-repair period (two years after construction before the first depot repair) is analyzed. The shortcomings are identified and an example of their elimination is given. New requirements for the transition platforms of new innovative passenger cars are noted.

The article discusses the main indicators of the state of working conditions based on production control (PC). It is shown that the greatest value of labor protection violations, as a percentage, is observed in such areas of production control as "safety of equipment and machine tools" and "industrial safety". As a reduction in the level of indicators of production control, it is proposed to monitor compliance with sanitary rules by organizations and individual entrepreneurs, as well as their implementation of sanitary and epidemiological measures.

Numerical simulation of heat transfer in convective surfaces with oncoming movement of the same coolant in coils is performed. A dependence for describing heat transfer using similarity numbers is proposed.

The article considers the problem of safety of online learning in terms of leakage of personal information. The author claims that online learning, having proved its efficiency in the context of the coronaviral threat, in the modern context, on the contrary, is connected with considerable risks, such as probable leakage of personal information as well as probability of participation of malevolent third parties in the educational process. It is claimed that online learning makes the classroom environment virtual and undefined and therefore the interference of third parties into the educational process and private life of its participants is highly probable and uncontrolled which can eventually lead to personal threat to teachers and students involved.

The article discusses the features of measuring and evaluating  the recirculator-irradiator as a source of infraand ultrasonic vibrations. The analysis of the measured values and evaluation of the results is given. The comparison of the measured values and the normative ones is carried out.