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981.
This study compared third-grade achievement test scores of participants in vertical Home Start (VHS), a preschool individualized program for children from 2 to 5 years of age; with comparable scores of their older and nonprogram siblings. Nonparametric rank ordering assessment revealed significant trends for black VHS children to attain higher rankings on 11 of the 15 subtest measures; no significant ranking differences were obtained with white children. Results indicate that, especially for black children, home-based preschool enrichment may more effectively promote growth in math and basic skills areas related to Cattell's crystallized intelligence, with more limited enrichment effects in such language-linked subject areas as vocabulary and reading.  相似文献   
982.
The article is intended to reveal important similarities between fiction and sport. I build on Jonathan Gottschall’s discussion in The Storytelling Animal: How Stories Make Us Human by celebrating the significance of stories and their ‘witchy power’ and by examining factors that demonstrate similarities between fiction and sport. I suggest that an unmistakable semantic, structural, and cultural kinship exists between the two. This argument requires a discussion of play theory, play resources and constitutive rules, the semantic power of problems and the uncertainty they produce, and the role of ‘frames’ in bringing problems to life. I conclude by noting the unique frame capabilities of ‘the big game’ and zero-sum dichotomous sporting motifs.  相似文献   
983.
Talent identification (TID) and talent development (TDE) programmes in track sprint cycling use ergometer- and track-based tests to select junior athletes and assess their development. The purpose of this study was to assess which tests are best at monitoring TID and TDE. Ten male participants (16.2 ± 1.1 year; 178.5 ± 6.0 cm and 73.6 ± 7.6 kg) were selected into the national TID squad based on initial testing. These tests consisted of two 6-s maximal sprints on a custom-built ergometer and 4 maximal track-based tests (2 rolling and 2 standing starts) using 2 gear ratios. Magnitude-based inferences and correlation coefficients assessed changes following a 3-month TDE programme. Training elicited meaningful improvements (80–100% likely) in all ergometer parameters. The standing and rolling small gear, track-based effort times were likely and very likely (3.2 ± 2.4% and 3.3 ± 1.9%, respectively) improved by training. Stronger correlations between ergometer- and track-based measures were very likely following training. Ergometer-based testing provides a more sensitive tool than track-based testing to monitor changes in neuromuscular function during the early stages of TDE. However, track-based testing can indicate skill-based improvements in performance when interpreted with ergometer testing. In combination, these tests provide information on overall talent development.  相似文献   
984.
ABSTRACT

The purpose of this study was to determine the influence of different wheel size diameters on indicators of cross-country mountain bike time trial performance. Nine competitive male mountain bikers (age 34.7 ± 10.7 years; stature 177.7 ± 5.6 cm; body mass 73.2 ± 8.6 kg) performed 1 lap of a 3.48 km mountain bike (MTB) course as fast as possible on 26″, 27.5″ and 29″ wheeled MTB. Time (s), mean power (W), cadence (revs · min?1) and velocity (km · h?1) were recorded for the whole lap and during ascent and descent sections. One-way repeated measure ANOVA was used to determine significant differences. Results revealed no significant main effects for any variables by wheel size during all trials, with the exception of cadence during the descent (F(2, 16) = 8.96; P = .002; P2 = .53). Post hoc comparisons revealed differences lay between the 26″ and 29″ wheels (P = .02). The findings indicate that wheel size does not significantly influence performance during cross-country when ridden by trained mountain bikers, and that wheel choice is likely due to personal choice or sponsorship commitments.  相似文献   
985.
Experiencing mindfulness during movement-based interventions (e.g., yoga) may help support adaptive physical activity motivation processes in youth. However, there is currently no measure for assessing state mindfulness with youth within the context of physical activity. The purpose of this study was to qualitatively and quantitatively evaluate a measure of state mindfulness for physical activity in youth. In study one, cognitive interviews with youth (N = 15) ages 8–13 evaluated the State Mindfulness Scale for Physical Activity item comprehension and preference for developmentally worded modifications. Results suggest that problems with item comprehension were more likely in youth younger than 10. In study two, the State Mindfulness Scale for Physical Activity, or a modified version, was administered randomly to middle-school students (N = 481). Internal consistency reliability, confirmatory factor analyses, model-based reliability omega, and correlations with theoretically relevant variables combined with the qualitative evidence provided stronger initial support for the use of the original State Mindfulness Scale for Physical Activity with middle-school students.  相似文献   
986.
The aim of this study was to quantify the impact of selections and shared selections in the rugby union. Players’ names, positions, and number of selections were collected for all XV de France’s games (1906–2014). Every team’s percentage of renewal of workforce was calculated for backs and forwards. During the 1987–2014 period, all second row forwards (locks), halfbacks, and centres’ shared selections (number of times when two players have competed together) were recreated. The Best vs. Rest method was applied to these remodelled dyads. They were analysed and compared with surrounding teammates as well as opponents. Head coaches similarly change their workforce for upcoming matches after winning or losing (around 30%), but losing teams renew significantly more positions in their line-ups. The recreated halfbacks, locks, and centres reveal a common pattern. Whether victorious or not, the ‘renewed couples’ victory percentage will congregate towards the XV de France’s victory percentage. For all the best recreated couples, the cumulated number of selections for forwards’ is always higher than the ones part of less efficient teams: 231.3?±?80 vs. 212.9?±?91 selections for locks’ teammates (Effect sizes (ES) small, possibly positive, 54.8%). In best recreated couples, number 8’s are significantly more experienced than their counterparts in less efficient pairs (ES small, likely positive, 76.3%). The XV de France’s collective effectiveness relies on a balance between stability and workforce renewal, which allows the building of specific position interactions and builds on experimented forwards packs. Selections and shared selections are serious collective performance parameters associated with performance.  相似文献   
987.
For a sport skill to be considered a life skill, it must be successfully transferred and applied beyond sport. Life skills transfer is an essential process, but it has yet to be fully delineated within the sport psychology literature. The purpose of the current paper is to present a definition and model of life skills transfer and outline future research needs. A critical review of the literature within sport psychology and other learning-based disciplines is offered to assess our current understanding of learning transfer. A definition and model of transfer are then presented, focusing on the athlete learner’s experience of life skills transfer. Within the model, we first examine how athletes bring personal assets and autobiographical experiences to sport. Second, we explore how sport is a learning environment with distinctive demands, programme designs, and coach characteristics and strategies. Third, we explain how transfer contexts provide environmental conditions, which, depending on how they are interpreted or experienced, can help or hinder the transfer of life skills. Ultimately, we postulate that an individual experiences life skills transfer as an ongoing process whereby he/she continually interacts and interprets his/her environments to produce positive or negative life skills transfer outcomes.  相似文献   
988.
The British government supports five semi-independent research councils covering agriculture, medicine, science, social science and the environment. These councils do not follow the same procedure but are an important element in the support of research in universities and in the maintenance of postgraduate students. It is possible that some of these research councils may be brought to an end and this would mean that universities would have to deal directly with the government departments concerned. Their budgets have not expanded at the same rate as the universities; if the same proportion of undergraduates stays on to undertake research and if this increasing number continues to be maintained from council funds, the expenditure on research will decline.
Résumé Le gouvernement brittannique entretient cing conseils de recherche, relativement autonomes, qui couvrent l'agriculture, la médicine, la science, les sciences sociales et l'environnement. Ces conseils n'utilisent pas les mêmes procédures, mais ils aident puissament la recherche dans les universités ainsi que l'entretien des étudiants de troisième cycle. On envisage de mettre fin à l'existence de certains de ces conseils de recherche et, en ce cas, les universités auraient directement affaire aux départements gouvernementaux qui les concernent. Leurs budgets ne se sont pas étendus au même degré que les universités; si la même proportion d'étudiants reste à l'université pour faire de la recherche et si l'on continue à entretenir sur les fonds des conseils une population croissante, il est évident que les dépenses de recherche iront en diminuant.
  相似文献   
989.
Conclusion It seems to me that science education in this nation will reflect the influence of ASEP for some considerable time. It may be that the Project's influence will be felt in many other subjects in the secondary school as well. Whatever the case there is an urgent need for research into the learning that occurs in ASEP classrooms. We need hard evidence to support the widely held view of science teachers that ASEP materials and the ASEP view of science education represent a large step forward in secondary science education.  相似文献   
990.
The purpose of this study was to examine the influence of family structure and school variables on behavior disorders of children. The sample consisted of 1,162 white elementary school children. General information was obtained from school records, and ratings on behavior disorders were obtained from teachers. Data were analyzed using multiple regression analyses of variance. Results indicated that grade in school, sex, social class, ordinal position in the family, and teacher were important variables in the determination of behavior disorders. Whether or not the children were living with both of their natural parents, number of children in the family, if the children were in special education classes, and whether the children were older than usual for their grade in school were less important or were unimportant. The results, especially those that were not expected, were discussed.  相似文献   
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