The contents of total P and its bioavailable forms. as well as of Fe, Al, Mn, Ca, and OM in the bottom sediments of the Solina-Myczkowce (S-E Poland) cascade of reservoirs, are presented. Notwithstanding a relatively low calcium content, it is the apatite fraction that accounts for the largest share of total phosphorus in the shallower parts of the Solina and Myczkowce Reservoirs. In turn, while contents of iron and aluminium (and manganese in the Solina Reservoir) are high, the fraction containing non-apatite inorganic phosphorus accounts for the smallest portion of the total phosphorus in the bottom sediments of both reservoirs. Bottom sediments of the Solina Reservoir are also characterised by significant correlations between total phosphorus content and aluminium content. Otherwise, significant correlations are reported for only some of the stations at each of the reservoirs.

Student engagement and burnout have become the latest focus of attention among researchers and practitioners. This is because both are seen as the main factors connected with the meaningful and purposeful educational activities that lead to high learning outcomes and better physical and mental health. Specifically, burnout decreases, and engagements heightened these characteristics.

The aim of the present study was to explore the relationships between alienation, engagement and burnout in an educational context. Additionally, the mediation role of school engagement on the association between alienation and burnout was tested.

The study was conducted among 109 early adolescents, aged 13–15 years (NFemale=52). ESSBS (Elementary Student School Burnout Scale), PAI (Alienation Inventory – Short Form) and SSEM (Student School Engagement Scale) were used to measure the levels of burnout, alienation and engagement, respectively.

The results indicated that higher alienation was associated with lower engagement and with higher school burnout. Student engagement, productivity and belonging significantly mediated the links between alienation total score, normlessness, powerlessness and school burnout. The path analysis revealed that normlessness significantly predicted student engagement (-.44) and school burnout (-.20). The model explained 31% of the variances for school engagement, and 46% of the variances for school burnout.

In conclusion, alienated students – especially those suffering from normlessness – feel disconnected and overwhelmed by school duties. In addition, to diminish the risk of alienation and burnout in a school context of students, educational practitioners should include school engagement (especially belonging and productivity) improvement as one of the most significant protective factors.

Several psychological factors are strongly related to aggressive behaviours in university students, such as educational issues and problematic digital activity, namely Smartphone and social media addiction. At the same time, little is known about the role of student burnout syndrome in predicting these mental and social problems. Moreover, although most researchers agree with the notion of sex differences in aggression, excessive digital activity , and burnout syndrome, only a few studies have examined the role of cultural differences. Thus, the present study sought to examine whether digital technology addictions mediate the relationship between student burnout and aggressive behaviours in European and Japanese university students. For this purpose, a cross-sectional, non-experimental and online study was developed with 291 participants (202 females, M = 22.66; SD = 4.35). The findings highlighted how academic burnout and phone snubbing increase, and problematic Facebook usedecrease the risk of aggressive behaviours. In addition, phone snubbing (known as phubbing) mediates the association between student burnout and aggression. Men tend to have more aggressive behaviours than women, and Japanese students were less addicted to FB and less aggressive as well as scoring higher in phubbing than European students. In conclusion, the results confirmed the importance of including cross-cultural differences in digital technology health programs in order to minimise the risk of aggressive behaviours.

Municipal solid waste collection points (MSWCPs) are places where residents of municipalities can leave their waste free of charge. MSWCPs should operate in every municipality in Poland. The Geographic Information System (GIS) and analytical hierarchy process (AHP) were used in conjunction as tools to determine potential locations of MSWCPs. Due to possible social conflicts related to the location of MSWCPs, three variants of buffer zones for a residential area were adopted. As a result of the spatial analysis carried out using the GIS software, 247 potential locations were identified in variant no. 1 (which accounted for 7.1% of commune area), 167 for variant no. 2 (6.3% of commune area), and 88 for variant no. 3 (3.8% of commune area). The most favourable locations for MSWCPs were determined using the AHP method with additional criteria for which weights were calculated as follows: the area of a designated plot (0.045), actual designation of a plot in the local spatial development plan (0.397), distance from the centre of the village (0.096) and the commune (0.231), and population density of a village (0.231). The highest weights (over 50%) in the AHP analysis were obtained for 12 locations in variant no. 3, two of which had an area over 3 ha. The adopted methodology enabled to identify quasi-optimal solutions for MSWCP locations in the analysed rural commune. This research has the potential to influence future waste management policies by assisting stakeholders in the MSWCP location.