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Context. The available set of spin and shape modelled asteroids is strongly biased against slowly rotating targets and those with low lightcurve amplitudes. This is due to the observing selection effects. As a consequence, the current picture of asteroid spin axis distribution, rotation rates, radiometric properties, or aspects related to the object’s internal structure might be affected too. Aims. To counteract these selection effects, we are running a photometric campaign of a large sample of main belt asteroids omitted in most previous studies. Using least chi-squared fitting we determined synodic rotation periods and verified previous determinations. When a dataset for a given target was sufficiently large and varied, we performed spin and shape modelling with two different methods to compare their performance. Methods. We used the convex inversion method and the non-convex SAGE algorithm, applied on the same datasets of dense lightcurves. Both methods search for the lowest deviations between observed and modelled lightcurves, though using different approaches. Unlike convex inversion, the SAGE method allows for the existence of valleys and indentations on the shapes based only on lightcurves. Results. We obtain detailed spin and shape models for the first five targets of our sample: (159) Aemilia, (227) Philosophia, (329) Svea, (478) Tergeste, and (487) Venetia. When compared to stellar occultation chords, our models obtained an absolute size scale and major topographic features of the shape models were also confirmed. When applied to thermophysical modelling (TPM), they provided a very good fit to the infrared data and allowed their size, albedo, and thermal inertia to be determined. Conclusions. Convex and non-convex shape models provide comparable fits to lightcurves. However, some non-convex models fit notably better to stellar occultation chords and to infrared data in sophisticated thermophysical modelling (TPM). In some cases TPM showed strong preference for one of the spin and shape solutions. Also, we confirmed that slowly rotating asteroids tend to have higher-than-average values of thermal inertia, which might be caused by properties of the surface layers underlying the skin depth. [ABSTRACT FROM AUTHOR]

The Morasko strewn field located near Poznań, Poland comprises seven impact craters with diameters ranging from 20 to 90 m, all of which were formed in glacial sediments around 5000 yr ago. Numerous iron meteorites have been recovered in the area and their distribution suggests a projectile with the trajectory from NE to SW. Similar impact events producing crater strewn fields on average happen every 500 yr and pose a serious risk for modern civilization, which is why it is of utmost importance to study terrestrial strewn fields in detail. In this work, we investigate the Morasko meteoroid passage through the atmosphere, the distribution of its fragments on the ground, and the process of forming individual craters by means of numerical modeling. By combining atmospheric entry modeling, Pi-group scaling of transient crater size and hydrocode simulations of impact processes, we constructed a comprehensive model of the Morasko strewn field formation. We determined the preatmospheric parameters of the Morasko meteoroid. The entry mass is between 600 and 1100 tons, the velocity range is between 16 and 18 km s−1, and the trajectory angle is 30-40°. Such entry velocities and trajectory angles do not deviate from typical values for near-Earth asteroids, although the initial mass we determined can be considered as small. Our studies on velocities and masses of crater-forming fragments showed that the biggest Morasko crater was formed by a projectile about 1.5 m in diameter with the impact velocity ~10 km s−1. Environmental consequences of the Morasko impact event are very localized. [ABSTRACT FROM AUTHOR]

This article highlights the links between sociological and cultural models and concepts on the one hand and Traditional Sports and Games (TSG) and their characteristics on the other hand. Traditional sports and games as a specific part of the global sport system may have the notion of old, exotic and endangered cultural manifestations, but to some extent that is only the outsider's view on an extremely widespread and interesting sub-group of sports, which could be analysed from different perspectives relating to sociological, anthropological or cultural sciences. These perspectives are a bigger area of research either as cultural studies or anthropology of sports, or they are particular concepts and models such as habitus, collective memory or sites of memory. The focus lies on Finnish Baseball, pesäpallo, but other examples are given as well. Pesäpallo is one of the so-called vital TSG, which are still popular and which still play a dominant role in their respective societies. [ABSTRACT FROM AUTHOR]

The study had two aims. The first was to investigate correlation between specific types of goal orientation as a predictor of prosocial and antisocial functioning and level of moral competences. The second, was to verify whether goal orientation has an impact on the development of moral competences of students participating in a pedagogical intervention based on non-linear pedagogy. Task and Ego Orientation in Sport Questionnaire and Moral Competence Test were used to assess 468 secondary school students aged 15 in goal orientation and moral competences level. There was no correlation between the level of task and ego orientation and the level of moral competence. Under the influence of pedagogical experiment students with high level of task orientation achieved a statistically significantly higher change in the level of moral competences (η 2  = 0.04). Study suggests that high level of task orientation is more susceptible to the development of moral competencies. Also, employing a non-linear pedagogy model in physical education, provides a conducive environment for the development of moral competences and should be implemented in the training of future physical education teachers., (© 2024. The Author(s).)

Background: The development of moral competence seems to be an important factor in the context of youth development. The problem with lack of moral competence among youth has often been observed. Physical education (PE) as a subject in school seems to provide space in the curriculum where moral development can and should be experienced and practiced., Methods: The participants were high school students (N.=235), divided into 4 groups: two experimental and two control groups. The difference between the experimental groups was the frequency of the experiment. The first group carried out two units a week for one semester, and the second group one lesson unit throughout the school year. As a research tool the Moral Competence Test was used., Results: The results indicate statistically significant positive changes between the score of Community Index (C-Index) in pretest and post-test for both experimental group (P<0.05; η 2 =0.04), and between pretest and follow-up in second experimental group (P<0.05; η 2 =0.05). Whereas in the control groups, there were no significant changes in the comparison of terms (pretest, post-test, follow-up) (P>0.05)., Conclusions: Based on the study, it can be determined that the curriculum of physical education, based on the model of non-linear pedagogy, can increase the level of moral competence among young people.

The skin, as an external organ, protects the entire body against harmful external factors. One of these factors is ultraviolet (UV) radiation, which in excessive amounts can lead to premature skin aging, DNA damage, and even skin cancer. Therefore, it is worth supporting skin protection not only with commercially available preparations, but also with a proper diet. Consuming certain vegetables and applying them topically may reduce the effects of UV radiation. The aim of the review was to collect information on the effects of vegetables and their compounds on the skin when used externally or included in the diet. This review summarizes studies on vegetables, such as broccoli, cucumber, kale, tomato, and carrot, which have shown significant activity in skin photoprotection. Additionally, it outlines the bioactive substances present in these vegetables and their effects.

In this article we focus on moral issues related to sport and e-sport. We attempt to identify the role that contemporary sport and e-sport play in the education of young people. To this end, we analyse the axiological foundations of both types of sport. In our opinion, there is a difference in the impact of e-sport and sport (especially Olympic sport) as carriers of values. Sport, properly conducted in the educational process, can positively influence the moral and biological/physical development of human beings, mobilizing them to physical activity appropriate to the discipline. This important element is basically missing in e-sports. Moreover, in the process of sports training, the athlete is supported by a coach who can explain both positive and negative phenomena occurring during this process. In e-sports, the role of the coach is limited to creating game tactics and maximizing the outcome of the competition, and the question of who teaches young players in both types of sports what is morally right and wrong remains open.

The study examined prosocial behaviour and the perception of fair play in the context of physical education and sport (PES) in adolescents participating in sports, and those not undertaking sports at all. The aim of this study was to explore and indicate potential associations between an understanding of the concept of fair play and selected behaviours (e.g., abiding by the rules, obeying decisions of the referee and sportsmanship) in youth. In total, 1257 secondary school students, aged 16.1 ± 0.87 years (627 girls and 600 boys), were recruited. For assessing the level of fair play awareness (L), the Fair Play Moral Dimensions Concept Scale (FPMDCS) was used. To measure the declared level of prosocial behaviours of students, the survey My Physical Education Class (MPEC) was used. Participants were divided into groups in relation to training experience (no sports, amateur sports, professional sports) and subgroups, with levels according to their understanding of the Fair Play concept (L 1 to L 3 ). The results show significant difference in all dilemmas in various groups in relation to scores in subgroup L 3 ( p = 0.056; p = 0.012; p = 0.003) with regard to subgroups L 2 and L 1 in the level of understanding fair play. Overall, the percentage of respondents who view fair play only in the context of sport (L 1 ) is 69%. Far fewer are those (31%) who understand it more broadly as a principle that applies to everyday life situations (L 3 ). It seems to be crucial to promote moral development during PES activities, especially the value of respect.

This study aimed to compare physical activity (PA) levels before and during a pandemic lockdown among adolescent Polish youths in relation to meeting the World Health Organization's (WHO) recommendations of moderate-to-vigorous physical activity (MVPA) and identify potential environmental factors that may affect these levels. An online survey tool that included validated measures of adolescents' MVPA and socio-environmental, potential confounders was administered to youths (e.g., lack of classmates, motivation, possibility of choosing any physical exercise time, possibility of choosing your own exercises, home environment). The analytic sample comprised 127 adolescents aged 15.4 ± 0.5 years on average (52% girls and 48% boys). The results highlight that among adolescents who did not meet the WHO MVPA recommendations before the lockdown, 13.4% had an increased frequency of PA (from 2.9 to 5.4 day/week) ( p = 0.01) during the lockdown. In the group who did meet these recommendations before the lockdown, 50% significantly decreased their level of MVPA below the WHO's recommendations ( p = 0.01). Self-rated health for PA showed a significantly strong correlation with MVPA in the group of students who met the WHO recommendations before the pandemic (r = 0.76; p < 0.05) but failed to maintain that recommendation during the COVID-19 restriction. The results suggest a negative impact of the pandemic on PA undertaken by youths. Based on these results we see the need for increased action by both Physical Education (PE) teachers and parents to motivate and support youngsters in taking up systematic PA consciously.

Background: The aim of this study was to examine adolescents' perceptions of parental, teacher, and peer support for physical activity, and to examine the associations between these perceptions and physical activity behavior., Methods: The study included 902 secondary school students, who completed the Short Scale of Youth's Social Support Assessment (SSYSS). The level of physical activity - more specifically, moderate to vigorous physical activity - was measured using a Physical Activity Screening Measure. The associations were examined by a five-step hierarchical regression. Body mass index (BMI) was defined using the LMS method, which summarizes the distribution of BMI by age and gender in terms of three curves, L (lambda), M (mu), and S (sigma), and was based on a nationally representative sample of Polish children and adolescents., Results: The study indicated a positive correlation between MVPA (moderate to vigorous physical activity) and three sources of social support; however, in the regression model, this explained only part of the variance. In the hierarchical multiple regression analysis, MVPA level was predicted by five variables involvement in sports training, teachers support, parents support, gender and BMI. The direct effects for teachers and parents support were similar. This demonstrates that both teachers' and parents' social support exert influence on adolescent MVPA., Conclusions: The findings from this research suggest that school-based interventions for adolescents should specifically take into consideration family, teachers, and peers as important sources of social support for general physical activity promotion that aims to increase its levels., Competing Interests: Competing interestsThe authors declare that there they have no conflicts of interest., (© The Author(s) 2020.)

The study examined the moral competence levels in adolescents participating in individual/team sports compared with those not undertaking sports at all. In total, 827 students aged 15-17 years old (45.4% boys, 54.6% girls) from randomly selected secondary schools in the Wielkopolska region in Poland participated in the study. The moral competences were assessed using the Lind's Moral Competence Test. The students also answered questions concerning their statues of involvement in sport (not involved; amateur; professional), years of involvement, and the type of sport they partook in (individual/team). The results highlight that the moral competence level in most of the examined adolescents (71.6% girls, 76.8% boys) was low. Those who presented a high moral competence level were 10.4% in girls, 8% in boys. There was no interaction between modes of involvement in sport and moral competence when comparing adolescents. The moral competence levels were not correlated with years of training in either mode of involvement or with type of sports. Therefore, we assume that, at this age, the type of sport and the level of engagement do not differentiate moral competence level and that there must be more factors contributing to this. This opens new directions for further research on the role of external factors stimulating the socio-moral growth of youth.

Objectives: Health-related fitness is a good predictor of health status of children and adults. Less is known about relationships of health-related fitness components between parents and children. Methods: Our study involved 58 children (30 girls and 28 boys, mean age = 7.97) and 58 parents (33 mothers, mean age = 39.32, and 25 fathers, mean age = 38.73) who were voluntarily enrolled in the program in 3 selected primary schools in the city of Poznan, Poland. Physical fitness was measured using the Eurofit test battery. Assessment of body composition was performed by measuring the bioimpedance. Results: Positive relationships were found among the levels of strength of abdominal muscle, flexibility of parents, and the slenderness of children. Slimmer parents also had more physically active children. Body composition parameters also were related to physical activity. More relationships were found between children and parents of the same sex. Conclusion: Data support the hypothesis that health-related risk factors are linked between parents and children and that sex plays an important role in these relationships. Our findings reinforce the need to develop health promotion programs that include children and their parents.

Background: The study purpose was to investigate the level of moral competences and prosocial behaviours in a physical activity (PA) context and differences between first year freshman students enrolled in both the physical education and sport coaching majors., Methods: We draw on data from students of the Faculties of Physical Education (109) and Sport (94) at Poznan University of Physical Education. For measurement, Lind's Moral Competence Test was used. Comparative analysis of differences between the groups was undertaken with the use of Mann-Whitney U test and Kruskal-Wallis nonparametric analysis of variance was used for further analysis., Results: The results show that there were no significant differences between the examined students in majority of the characteristics. Students comply with the recommended levels of physical activity, but 70% present low level of moral competences. Parents were the most influential factors in moral development across levels of competences and genders. More years of sports training showed a positive relationship with moral development (only in the group of male students with high level of moral competency)., Conclusions: Based on the findings, it is recommended to consider the changes in physical education and sport students education training programmes which should include more critical reflection and life-long learning competences.

Background: The aim of this study was to evaluate the relationship between the motives for undertaking physical activity (PA) and the intensity of PA in Polish adolescents., Methods: The study included 1,231 students, 515 boys (age 16.2 ± 0.7 years) and 716 girls (age 16.3 ± 0.6 years). The participants were recruited from secondary schools in 20 conurbations throughout Poland. The International Physical Activity Questionnaire-Long Form and the Motives for Physical Activity Measure-Revised were used., Results: In boys, all motives predicted a 10.4% variance in vigorous intensity of PA ( F (5, 509) = 11.822, p < .001). Higher scores on competence and appearance motives for PA were found to be predictors of higher level of vigorous intensity of PA. In girls, all motives explained a 7.4% variance in vigorous intensity of PA ( F (5, 710) = 11.292, p < .001). Higher scores on competence and appearance motives for PA were found to be predictors of higher level of vigorous intensity of PA., Conclusions: This study shows that competence and appearance related motives for PA are important motivations for Polish adolescent girls and boys in undertaking vigorous intensity PA.

Background: Decline in physical activity (PA), specifically in adolescents raises concerns. Setting goals and strategies are often used to increase the level of moderate-to-vigorous physical activity (MVPA), recently introducing also modern technological devices for achieving different goals. The aim of this study was to investigate the effectiveness of two different goal strategies in increasing PA of youth. It was expected that there would be positive relationships between support and goal strategy which would contribute to increase MVPA. Classmate and teacher support scales were used to evaluate support in physical education (PE) classes. Activity trackers were used to count daily steps., Methods: Data were collected from 65 late adolescents, divided into two groups: "Goal" (group 1) and "Do your best" (group 2) set with different step goals and strategies. Differences between the terms were tested. To compare MVPA levels with the different level of support they received in girls and boys, a two-way ANOVA was used., Results: There was a difference noticed in teacher support between the genders in all the two groups in favor of boys. Boys with low teacher support in group 1 indicated a higher level of MVPA. In group 2 when teacher support was high girls reported the highest level of MVPA., Conclusions: This study has shown that in terms of MVPA teacher support is more efficient than a goal strategy. The results highlight the importance of perceived teacher support for motivation in PA and pointed at PE teachers as the agents of behavior change, specifically in girls.

The objective of this study was to investigate the association between physical activity (PA) and different goal setting and strategies in youth. The study took into consideration different sources of support as well as gender variations. Classmate and Teacher Support scales were used to evaluate support in physical education (PE) classes, and moderate-to-vigorous physical activity (MVPA) was reported. Garmin Vivofit(®) activity trackers were used during an 8 week-long intervention to count daily steps. Data was collected from 65 adolescents (mean age 17.2 ± 0.2), 74 young adolescents (mean age 15.3 ± 0.2) and 57 children (mean age 11.5 ± 0.4). An experimental design was employed, with "goal" and "do your best" groups given different step goal strategies. The results show that both groups achieved a comparable number of steps. Two-way ANOVA showed interactional effects between gender and teacher support. There were no such effects for MVPA and number of steps. Although classmate support in PE was reported to be reasonably high, the findings show that it does not play a significant role in increasing MVPA behaviors in youths. However, the problem of significantly lower support given to adolescent girls by PE teachers should be embedded into the teaching context of PE students and counteracted in school setting realities., Competing Interests: The authors declare no conflict of interests.

Background: Glycosylphosphatidylinositol (GPI)-anchor deficiencies are a new subclass of congenital disorders of glycosylation. About 26 genes are involved in the GPI-anchor biosynthesis and remodeling pathway, of which mutations in thirteen have been reported to date as causative of a diverse spectrum of intellectual disabilities. Since the clinical phenotype of these disorders varies and the number of described individuals is limited, we present new patients with inherited GPI-anchor deficiency (IGD) caused by mutations in the PGAP2 and PIGN genes., Patients and Methods: The first girl presented with profound psychomotor retardation, low birth parameters, and chest deformities already existing in neonatal period. The disease course was slowly progressive with severe hypotonia, chronic fever, and respiration insufficiency at the age of 6. The second girl showed profound psychomotor retardation, marked hypotonia, and high birth weight (97 centile). Dysmorphy was mild or absent in both girls. Whole exome sequencing revealed novel variants in the genes PGAP2 (c.2T>G and c.221G>A) and PIGN (c.790G>A and c.932T>G). Impaired GPI binding were was subsequently uncovered, although the hyperactivity of alkaline phosphatase (a GPI-anchored protein) occurred only in first case., Conclusions: Based on our results we can conclude that: 1. GPI-anchor biosynthesis disorders may represent a relatively frequent and overlooked metabolic defect; 2. The utility of GPI binding assessment as a screening test for this group of rare diseases requires further studies., (Copyright © 2016 European Paediatric Neurology Society. Published by Elsevier Ltd. All rights reserved.)

The promotion of physical activity (PA) in children and their parents requires effective planning and sometimes even interventions. This study shows the effect of PA during a 15-week intervention program "Junior for Seniors" by applying a socioecological model to the interpretation of the data. This comprehensive approach emphasizes the fact that health promotion should focus not only on intrapersonal factors but also on the multilevel factors that might be determinants and modulators of increased PA. In 2015, 24 children ("juniors," 14 girls and 10 boys, aged M = 7.96 ± 0.69) and 22 parents ("seniors," 14 mothers aged M = 38.86 ± 2.96 and 8 fathers aged M = 37.38 ± 2.97) were voluntarily enrolled in a study spread across three primary schools in the city of Poznań, Poland. The effectiveness of the intervention was determined according to postintervention behavioural changes in PA in comparison to preintervention levels, as reported by the parents and children. Overall, the study found increases in PA levels and reductions in sedentary time. Although the changes are modest, there are some unrecognized benefits of the intervention which may have occurred, such as improved sport and motor skills, more frequent family social behaviours (walks, meals, and visiting relatives), or simply improved quality of "do-together" leisure time PA.

Aim: This study aimed to investigate how were the peer and physical education (PE) teacher variables associated with moderate-to-vigorous physical activity (MVPA) among Kosovar teenagers (13-15 years of age), and the role of age and gender in these associations., Methods: Cross-sectional data was gathered through a study conducted in seven major municipalities of Kosovo. 632 girls (aged 14.3 ± 0.8) and 664 boys (aged 14.2 ± 0.8) were examined using the adjusted Classmate and Teacher Support Scale and the Physical Activity Screening measure. A three-way (support*age*gender) ANOVA was used to compare the individuals' MVPA level with the different levels of support they received, with different age in groups of girls and boys., Results: Boys reported higher levels of MVPA than girls in all age categories. A higher level of MVPA was reported by boys receiving high or medium support from classmates. In case of PE teacher support, high, medium and even low support correlated with high MVPA in all age categories. In girls only 13 year olds reported receiving high levels of both classmate and PE teachers support which correlated with a higher level of MVPA., Conclusions: It appears that engagement in MVPA among young Kosovar adolescents is relatively high in boys, regardless of the level of classmate or PE teacher support, whereas in girls the level of MVPA decreased over their time at school. Support from both classmates and PE teachers turned out to be the most significant factor in 13 years old girls, before they moved from primary to secondary school. This issue requires more detailed insight, considering traditional ethnical and religious barriers to engagement of young female adolescents in physical activity.

The aim of this paper is to examine the role of physical education (PE) teacher and classmate support in relation to sex and BMI status in adolescents' physical activity (PA) in Kosovo. A Classmate and Teacher Support Scale (with additional questions) was used on a cross-sectional sample of 608 girls and 620 boys aged 15-18, randomly selected from secondary schools of seven major municipalities in Kosovo. PA level was determined with a Physical Activity Screening Measure questionnaire. Descriptive statistics and a three-way ANOVA, along with Tukey's HSD post hoc test, were employed. The findings showed the levels of teacher and classmate support to be important factors in stimulating adolescents' PA. It was found that boys with normal weight, high support from teachers, and medium or high support from classmates were more physically active, compared with girls.

Aims: In this paper we evaluate the sustainability of changes of involvement in physical activity. The paper examines the effectiveness of a model aiming at influencing the frequency of leisure time physical activity, physical fitness and body constituency in youth., Methods: The baseline of this study was a randomly selected sample of 13 year olds who participated in an intervention programme carried out in three schools in Poznan in 2005-08. From a total of 199 adolescent boys a subsample of 38 individuals from the experimental group and 34 from the control group were followed for 15 months after the interventional programme finished. From 170 girls, a subsample of 33 from the experimental group and 32 girls from the control group were also randomly selected for the follow-up study. Among the variables monitored were: physical fitness, body constituency, and frequency of leisure time physical activity. All the variables were monitored in pre-test, post-test and follow-up examinations., Results: It was established that 15 months after the end of the interventional programme boys and girls from the intervention groups maintained a higher level of leisure time physical activity than their control group peers, and similarly in the case of selected health-related components of physical fitness. No distinctive differences were found in the case of body constituency, though, apart from muscle mass and the sum of skinfolds in girls., Conclusions: The study exposed an increase in leisure time physical activity in time and a positive influence on selected components of health-related variables. The findings confirm the effectiveness of a multi-level intervention programme involving self-determined out-of-school physical activity planning for school-age youths, indicating the importance of personal and social context.

Background and Aims: A salutogenetic approach may play an important role in developing adolescent understanding of health. On the basis of sense of coherence the study examined the relationships between self-assessed physical fitness and actual performed cardiorespiratory fitness., Methods: Data were collected from 199 boys aged 13, randomly assigned to either an experimental or a control group. Frequency of out-of-school moderate-to-vigorous physical activity (MVPA) was self-rated by pupils while cardiorespiratory fitness was measured using 20-meter Shuttle Run test (20SRT) from the battery of Eurofit. Sense of coherence was measured with a SOC-13 questionnaire. A three semesters (15 months) intervention into a physical education programme, based on the Hellison's Teaching Responsibility through Physical Activity (TRPA) model, was introduced in the experimental group., Results: In the experimental group post-test examination revealed that cardiorespiratory fitness had improved significantly as the number of minutes completed in 20SRT increased. A similar situation was observed in the case of sense of coherence. No such findings were observed in the control group, and in a post-test comparison both the average results in 20SRT and in sense of coherence were statistically (p50.05) lower than in the experimental group., Conclusions: A health-related physical education programme based on developing individual responsibility through self-planned out-of-school activity can provide pupils with substantially more physical activity during the day (and thus improve cardiorespiratory fitness) when it is based on self-determined and individualized objectives.