A Lunch Break Time and Its Impact on Employees Health, Performance and Stress on Work

Employees’ health, performance, and stress problem have become a major issue in today’s workplace globally. These problems are linked to various factors. In this study, we contributed the rationality of having a one-hour lunch break at the workplace. Drawing on extant literature, we developed a theoretical model in this study. The results showed a positive impact on employees’ health, performance and reduced stress at work if the favorable one-hour lunch break is practiced. The study also gives support to prevent absenteeism, improve job satisfaction, and employees' positive attitude towards work.

STRESS MANAGEMENT IN PEDAGOGIC ACTIVITY: BASIC ORGANISATION DIRECTIONS

The article examines issues related to the study of the problem fi eld of the stress phenomenon in pedagogic activity, consideration of the features of its manifestation in the pedagogic environment, the possibilities of organising stress management in the functional space of pedagogic work. Topicality of the research direction outlined in the article is determined by the high social signifi cance of pedagogic activity, which represents a special socio-professional space in which the whole spectrum of social relations, the variety of communicative contacts that are realised at different levels of the organisation of the educational process and with different categories of participants in educational relations are focused, hich objectively entails the emergence of situations that can destabilise a pedagogue’s personality, modify the procedural route of pedagogic activity and lead to the emergence and development of stress. A theoretical analysis of scientifi c research is conducted, devoted to the study of the conceptual space of the stress problem, its essential characteristics, manifestations in the pedagogic environment, factors determining the occurrence of stress among pedagogues, the content of stress management in the functional coordinates of pedagogic activity. Based on the study, a system of principles is defi ned that sets the guidelines for the substantive-procedural dynamics of stress management, which determines the priority personal and organisational vectors of the anti-stress management trajectory. The contents of the leading areas of stress management in pedagogic activity are disclosed, key organisational and pedagogic tools for their implementation in the pedagogic environment are identifi ed. According to the results of the study, it was found that the organisation of systematic work on stress management in pedagogic activities implemented in an educational organisation, the active integration of pedagogues as key subjects of pedagogic work into its functional and process orbit, is an important factor in increasing the personal and professional success of a pedagogic worker, a necessary condition for the effectiveness of pedagogic activity and the development of the pedagogic environment.

FINITE ELEMENT CALCULATION OF THE RIVET JOINT OBTAINED BY NITROGEN COOLING OF THE RIVET

A method for creating a rivet connection using nitrogen cooling of rivets is considered. A rivet, cooled to a temperature of -196 C, is placed in a cylindrical hole in the plates at room temperature. When heated to room temperature, the rivet undergoes a thermal all-round expansion and creates a tight fit. The finite element method solves the contact termal-stress problem for such a connection in the COMSOL MULTIPHYSICS and APM Winmachine software complexes. The problem is solved in a three-dimensional statement. The first stage is the temperature distribution in the rivet-plate system. The resulting temperature field is used as a parameter at the second stage when solving the stress problem. The fields of residual stresses in the plate and rivet are obtained. It is shown that plastic deformations occur in a small part of one of the connected plates. Recommendations for calculating the strength of such compounds are given.