Kazimierz Wielki University in Bydgoszcz

About: Kazimierz Wielki University in Bydgoszcz is a education organization based out in Bydgoszcz, Poland. It is known for research contribution in the topics: Luminescence & Population. The organization has 1109 authors who have published 2923 publications receiving 19548 citations. The organization is also known as: Casimir the Great University & Uniwersytet Kazimierza Wielkiego w Bydgoszczy.

Level of physical activity of physical education students according to criteria of the IPAQ questionnaire and the recommendation of WHO experts

Abstract: Summary Study aim: Systematic physical activity is an effective preventive measure that supports the preservation of physical health and psychological health. Three expressions employed that relate to the work carried out with MET-min/week as a measure of the level of total physical activity are intense activity, moderate activity, and walking. These were applied to students studying Physical Education. In the process, those who failed to meet the requirements for the ‘sufficient’ level according to IPAQ criteria and as recommended by the WHO were identified. Material and methods: Research was conducted amongst 146 students: 50 from Charles University (CU) and 96 from the University of Physical Education in Warsaw (UPE). The total physical activity of students was determined according to the accepted standards (IPAQ). WHO recommendations concerning physical activity per week were converted into MET-min/week used by IPAQ as follows: physical activity needs to achieve at least 1200 MET-min/week to increase its effect on health. Results: The study of Physical Education students at CU shows that they were significantly more active than their counterparts at UPE. Total physical activity per week as measured by IPAQ at CU was 9525.2 ± 4275.9 for men and 10964.3 ± 4092.0 MET-min/week for women. At UPE, this was 4034.3 ± 2617.8 for men and 2469.8 ± 1721.2 MET-min/week for women. The difference in total levels of physical activity carried out by these students was found to depend largely upon their involvement in championship sports. Inclusion of WHO recommendations in the assessment of physical activity of students increased the proportion of individuals with low activity levels, particularly in the group of not-training students. Conclusions: It is recommended either that the WHO criterion “of activity level for health” be added to the IPAQ classification, thus toughening the requirements of the moderate level of activity, or, alternatively, an additional threshold of completing at least 1200 MET-min/week be applied, with the recommendation that this is achieved on a regular basis.

New bio-polyol based on white mustard seed oil for rigid PUR-PIR foams

Abstract: Abstract A new bio-polyol based on white mustard oil (Synapis alba) and 2,2′-mercaptodiethanol (2,2′-MDE) was obtained. The synthesis was carried out by two-step method. In the first stage, the double bond of the unsaturated fatty acid residues was oxidized, and in the second step the epoxy rings were opened with 2,2’-MDE. The properties of the obtained bio-polyol for application as raw material in polyurethane-polyisocyanurate foams (PUR-PIR) - hydroxyl number, acid number, density, viscosity, pH, water content, FTIR, 1H NMR and 13C NMR were investigated. Based on the obtained results, foaming formulations containing 0 to 0.6 R of the new bio-polyol were prepared. Significant impact of bio-polyol on apparent density, compressive strength, brittleness, flammability, water absorption and thermal conductivity of polyurethane composites were noted. Modified foam had better functional properties than reference foam e.g. lower brittleness, better thermal insulation properties and better fire resistance.

Analiza głównych uwarunkowań metody van Ossa-Chaunhury'ego-Gooda w badaniach warstwy wierzchniej materiałów polimerowych

Abstract: The selected problems related to investigations of surface layers (WW) of solids were presented. The analysis of essential limits of van Oss-Chaunhury-Good's (vOCG) method, used for calculation of surface free energy (SEP) of polymeric materials, has been done. Some reasons of discrepancy between the results of calculations, obtained by various authors, were discussed in details. Namely, the need of use of algebraic analysis for selection of the set of three measured liquids, which are necessary in vOCG method, has been pointed. It makes possible to eliminate the sets of liquids being the reasons of bad conditioning of the sets of equations for SEP calculation. The effect of the proper selection of scale of components (acidic and basic ones) of SEP of water on the right evaluation of selected properties of the materials investigated was also presented (Table 1&2). General conclusions concerning the causes of controversy over van Oss-Chaunhury-Good's method were formulated.

Cognitive flexibility and flexibility in coping in nurses - the moderating role of age, seniority and the sense of stress.

Abstract: OBJECTIVES The nursing profession entails many stressful situations and challenges, such as heavy workload, shift work, emotional demands and professional conflicts. In the light of the results of the research conducted so far, flexible coping has occurred to be highly adaptive, as its association with adaptive struggle with the disease, fewer depressive symptoms and both greater mental well-being and better health have been proven. In connection with the above, the aim of this study was to determine the nature of the relationship between cognitive flexibility and flexibility in coping in nurses, taking into account the moderating role of age of the respondents, seniority and the sense of stress. MATERIAL AND METHODS The study sample consisted of 280 persons working as nurses (age range: 21-66). The number of women and men reflected their percentage distribution in this profession, as it is highly feminized. The following methods were used in the study: the Cognitive Flexibility Inventory (CFI) by Dennis and Vander Wal, the Perceived Stress Scale (PSS-10) by Cohen et al., the Flexibility in Coping with Stress Questionnaire (FCSQ-14) by Basinska et al., and a self-developed survey. RESULTS As the obtained research results show, cognitive flexibility in both the Control and Alternatives subscales was a predictor of flexible coping and their subscales. The analysis revealed that the model of the relationship between cognitive flexibility and flexibility in coping was moderated by age, seniority and the sense of stress. CONCLUSIONS Coping skills and flexibility are positively correlated with the psychological adjustment of nurses. Int J Occup Med Environ Health. 2020;33(4):507-21.