Population Movement and Changes in Population in European Countries - Present State and Perspectives

This paper aims at presenting the direction of changes and perspectives in populations and the movement of the population of Europe (as broadly defined) against the backdrop of the situation on other continents, as well as highlighting the internal diversity in terms of the realties of the current political divisions in Europe

Mental condition of students from rural areas three months after returning to schools

The conducted research aims to verify whether returning to schools, to the education inside the classroom in the company of their peers, improved or undermined the students’ mental health. The study was carried out on a sample of students inhabiting rural areas in a borderland region. The research sample was collected using purposive sampling and consisted of 552 respondents from 7th and 8th grades of primary school. An auditorium questionnaire was used to gather the research material. Three months after returning to school 61% of the respondents are satisfied with their lives, 52% of the respondents show symptoms of depression measured with the WHO-5 index, whereas 85% of them have average and high stress levels as measured with the PSSC scale. Higher levels of mental disorders was observed among females, the students inhabiting villages and evaluating their financial status as worse

Distance education and its impact on school performance: A cross-section study in Poland and Ukraine

Distance education is perceived as a negative phenomenon leading to educational losses and competence gaps. As a reaction to this problem, the first representative study carried out during distance education which presents the students’ opinions on this subject-matter was conducted. The study was carried out on a sample of 1000 students in Poland and 1022 students in Ukraine using a representative survey with the use of the CAPI technique. The results of research indicate that according to the subjective students’ evaluation of their level of school knowledge, it has decreased in comparison to the time before the pandemic. The analyses have shown that the main factor responsible for the sense of educational losses are the secondary effects of the pandemic. The students who had social problems as a result of the pandemic, and whose mental and physical condition deteriorated as well as those who had cognitive problems have experienced a decrease in their school knowledge during on-line education to the greatest exten

Increased concentration of serum TNF alpha and its correlations with arterial blood pressure and indices of renal damage in dogs infected with Babesia canis

Canine babesiosis is a tick-borne disease caused by parasites of the genus Babesia. Tumour necrosis factor alpha (TNF-α) is a cytokine that plays a role in the pathogenesis of canine babesiosis. In this study, the authors determined the concentration of serum TNF-α in 11 dogs infected with Babesia canis and calculated Spearman’s rank correlations between the concentration of TNF-α and blood pressure, and between TNF-α and indices of renal damage such as: fractional excretion of sodium (FE(Na(+))), urinary creatinine to serum creatinine ratio (UCr/SCr), renal failure index (RFI), urine specific gravity (USG) and urinary protein to urinary creatinine ratio (UPC). The results demonstrated statistically significant strong negative correlations between TNF-α and systolic arterial pressure (r = −0.7246), diastolic arterial pressure (r = −0.6642) and mean arterial pressure (r = −0.7151). Serum TNF-α concentration was also statistically significantly correlated with FE(Na(+)) (r = 0.7056), UCr/SCr (r = −0.8199), USG (r = −0.8075) and duration of the disease (r = 0.6767). The results of this study show there is an increase of serum TNF-α concentration during canine babesiosis, and the increased TNF-α concentration has an influence on the development of hypotension and renal failure in canine babesiosis. This probably results from the fact that TNF-α is involved in the production of nitric oxide and induction of vasodilation and hypotension, which may cause renal ischaemia and hypoxia, and finally acute tubular necrosis and renal failure

Digital Twin of the Mining Shaft and Hoisting System as an Opportunity to Improve the Management Processes of Shaft Infrastructure Diagnostics and Monitoring

The following chapter presents a concept of a virtual model of a mine shaft equipped with a hoisting system for the purpose of improving the processes of diagnostics management of shaft infrastructure and its monitoring. The chapter presents a proposal of improvement of broadly known processes such as: diagnostics and monitoring of shaft infrastructure using digital models of 3D structures, the BIM and Digital Twin idea. Implementation of such systems in the operating mine working was presented together with expected results of monitoring. As the presented solution is currently only a concept, development of such system in real application is necessary to asses real benefits of application of Digital Twin system