The combination of total uncertainty and forced self-isolation during the pandemic create a condition for stress reactions, mental and somatic disturbance of a large number of people around the world. Sleep quality has been validated as an indicator of well-being during a pandemic and a predictor of delayed risk. At this article demonstrate the interaction between psychological hardness and risk of insomnia in group of students of Herzen University during the period of remote education connected with COVID-19 pandemic. The hypothesis of the study was the assumption about the influence of hardness on the ability of students to cope with the challenge of complexity, the negative relationship of its characteristics with the index of insomnia and anxiety, as well as positive ones with the characteristics of life-meaning orientations and tolerance to uncertainty. The study show that level of psychological hardness can predict risk of insomnia and feeling of anxiety. The article demonstrate that psychological hardiness is connected with tolerance to the uncertainty. The practical significance is determined by the substantiation of indicators of potential risk and directions of development of resources for coping with the challenge of complexity in the student period. The article shows that resilience is associated with a tolerance for uncertainty.

The study is devoted to comparing the career orientations of schoolchildren (N=461) from the Omsk region, who have different levels of giftedness, and the search for relationships between their career orientations and migration attitudes. The method of determining career orientations by E. Schein and the scale of migratory attitudes of the individual S.A. Kuznetsova were used. Groups of schoolchildren with reduced and increased educational activity, gifted in one or more areas, were identified. It was found that schoolchildren with reduced educational activity significantly higher than in more active groups developed orientations towards professionalism, autonomy in work, stability of place of residence and work, and the desire to integrate different aspects of life. Migration attitudes of all respondents are expressed at the average level and are negatively related to the orientation towards the stability of the place of residence. The desire to migrate among gifted students has a positive correlation with an orientation towards autonomy in work, among schoolchildren with increased educational activity, in addition, there is a connection with career orientations for managing people and entrepreneurship.

This article investigates the specific application of inhibitors in firefighting. The main emphasis is placed on the application of temperature-activated water jets (TAW). A generalized model of droplet motion in highly heated heat flows has been presented, taking into account not only the local heating of the droplet from heat flows, but also the integral, depending on the geometric and velocity characteristics of its motion.

The presented article presents the results of investigations of operational characteristics and thermal stability of polymer composites whose matrix is represented by epoxy resins modified with different kinds of inhibiting fillers. An analytical literature review has been performed, methods and methods of obtaining flame retardant composites have been studied. Experimental study of the influence of inhibiting modifiers - fine fillers: iron oxide, silica flour, graphite, talcum, copper oxide has been carried out. According to the results of the experimental study, the modification of the epoxy matrix of the composite by the introduction of inhibiting fillers by ultrasonic treatment contributes to an increase in thermal stability. The modified material is characterized by decrease of intensity of destruction of the material matrix, expressed in decrease of mass loss level, decrease of maximum value of thermal effect, increase of oxidation period, and also steady formation of a thermal insulating carbonaceous layer.