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41.
Marjukka Barron Mirka Kastinen 《The International Journal of Art & Design Education》1998,17(2):181-190
The Finnish Art Teachers’ Society celebrated its 90th anniversary in 1996 with an exhibition `Picturing a Century’. In connection with this occasion, four students of the University of Art and Design Helsinki (Marjukka Barron, Mirka Kastinen, Iris Kärner-Kupiainen and Elina Heikkilä) organised a course ‘The Body Frontier’ involving 25 upper secondary school pupils from four Helsinki schools. One of the aims of the course was to bring forth the many possibilities art education offers, another was to expand the anniversary exhibition outside the museum walls, reaching people who do not usually go to museums. The course first examined different views of the body and studied historical and philosophical aspects as well as contemporary media images, and secondly the study of one’s own body; e.g. its form and the space it holds. The pupils made paper sculptures using their own body as a mould. The sculptures and a short video about their making were exhibited in the central shopping arcade Forum, adjacent to the museum with the main exhibition. The course instructors approached people in the arcade and discussed feelings and ideas evoked by the work. The process itself and the pupils’ ideas were documented in the museum with the main exhibition. The course was a successful experiment in co-operation between schools and a university, financing itself largely through commercial sponsorship. The exhibition provoked discussion about the dividing line between art education and `art proper’, and the public presentation of pupils’ work. 相似文献
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This paper investigates the number of expansion terms to use in automatic query expansion by examining the behavior of eight
retrieval systems participating in the NRRC Reliable Information Access Workshop. The results demonstrate that current systems
are able to obtain nearly all of the benefit of using a fixed number of expansion terms per topic, but significant additional
improvement is possible if systems were able to accurately select the best number of expansion terms on a per topic basis.
When optimizing average effectiveness as measured by mean average precision, using a fixed number of terms increases the score
a large amount for a small number of topics but has little effect for most topics. The analysis further suggests that when
a topic is helped by automatic feedback, the increase is from a set of terms that reinforce each other rather than from the
system finding a single excellent term. 相似文献
46.
Chris Pocock Neil E. Bezodis Keith Davids Jamie S. North 《European Journal of Sport Science》2018,18(10):1309-1316
Place kicks in Rugby Union present valuable opportunities to score points outside the spatiotemporal dynamics of open play but are executed under varying performance constraints. We analysed effects of specific task constraints and relevant contextual factors on place kick performance in the 2015 Rugby Union World Cup. Data were collected from television broadcasts for each place kick. In addition to kick outcomes, contextual factors, including time of the kick in the match, score margin at the time of the kick, and outcome of the kicker’s previous kick, were recorded. Effects of spatial task constraints were analysed for each kick, using distance (m) and angle (°) of the kick to the goalposts. A binomial logistic regression model revealed that distance from, and angle to, the goalposts were significant predictors of place kick outcome. Furthermore, the success percentage of kickers who missed their previous kick was 7% lower than those who scored their previous kick. Place kick success percentage in the 10 minutes before half-time was 8% lower than the mean tournament success percentage, which was 75% (95% CI 71–78%). The highest kick success percentage was recorded when scores were level (83%; 95% CI 72–91%). Our data highlighted how subtle changes in task constraints and contextual factors can influence performance outcomes in elite performers in international competition. Fluctuations in place kick success suggested that individual constraints, such as thoughts, emotions and fatigue, induced during competition, could interact with perceptions to influence emergent performance behaviours. 相似文献
47.
Sarah Kelly Richard Thelwell Jamie B. Barker Chris G. Harwood 《Journal of sports sciences》2018,36(16):1852-1859
In the present study we add to the literature by exploring the degree to which UK practitioner psychologists perceive themselves able to support sport coaches, and how professional training prepares psychologists for coach work across performance domains. Ten participants comprising seven sport and exercise psychologists with Health Care Professions Council (HCPC) practitioner psychologist status and three trainee psychologists studying towards the British Psychological Society (BPS) qualification in sport and exercise psychology (QSEP) were individually interviewed. All participants reported prior experience of working with coaches across all performance domains. We explored: practitioner’s understanding of the challenges coaches face within their job; practitioner’s experiences of coach work; perspectives about the ways in which practitioners could and should support coaches; and, the degree to which professional training prepares practitioners for coach work. Using recommended procedures of Connelly and Peltzer, content analysis revealed practitioners perceived the challenges faced by coaches are different at grassroots level compared to those working with elite athletes, and that practitioners require skills to provide one-to-one coach support and group-based interventions. All practitioners perceived that training programmes do not adequately equip trainees with skills required for coach work. We discuss the implications for enhancing practitioner training in the UK. 相似文献
48.
Jamie L. Jensen Emily A. Holt Jacob B. Sowards T. Heath Ogden Richard E. West 《Journal of Science Education and Technology》2018,27(6):523-535
In a flipped classroom model, learning of basic content is shifted before class while in-class time is used for concept application. Empirical and controlled research studies are lacking on the best strategies to provide the necessary pre-class content instruction. In this study, we tested three methods of pre-class content learning—interactive online tutorials, video lectures, and textbook-style readings—while holding the content and the in-class application activities constant. Identical introductory, non-majors biology classes were manipulated at both a public, open-enrollment institution and a private, highly selective institution. We found that video lectures offer a small advantage to overall student learning over interactive tutorials or textbook-style readings. Although our two populations differed in their ability to effectively learn from pre-class activities, through a student-centered flipped classroom approach, students at both institutions demonstrated equal learning gains by the final assessment. Potential reasons for some observed differences are suggested. 相似文献
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Purpose: Although bullying is recognized as a serious problem among adolescents, more information is needed regarding bullying within the context of physical education. Grounded in a social-ecological framework, the purpose of this investigation was to discover the perceptions students and teachers have about bullying in physical education and about peer and adult support. Method: Data collection included formal and informal interviews with 24 students and 4 teachers and 20 observations of 6th-grade physical education classes in 1 Midwestern school. Data were analyzed using a constant-comparative process. Results: The results indicate that adults acculturate students to support a bullying climate by providing mixed information regarding social interactions, ignoring nonphysical instances of bullying, and promoting inappropriate curricular selections. Participants also report that perceived differences such as appearance, body size, physical ability, and personal attire ignite most episodes of harassment in physical education. Further, students perceive that fear prevents many from (a) reporting instances of bullying to those in authority, (b) assisting bullied friends, and (c) feeling safe in certain physical education locations. Finally, students and teachers report that bullying impacts students' desire to participate in physical education. Conclusions: Overall, evidence from this investigation suggests that an efficacious support system does not exist for addressing the magnitude of the bullying problem. Although this study provided an initial step toward understanding the social-ecological factors affecting peer harassment in physical education, additional research is warranted. 相似文献
50.
We analyzed the effect of an 8-week strength training (ST) program on the rate of force development (RFD) and electromyographic activity (EMG) in older women. Seventeen women (M age = 63.4 years, SD = 4.9) without previous ST experience were randomly assigned to either a control (n = 7) or training (n = 10) group. A leg-press isometric test was used for assessment. ST (three sessions/ week, three sets of 10–12 repetition maximum, five different exercises) induced significant increases (p < .05) on peak RFD (48.4%) and on RFD and EMG of vastus medialis at time intervals of 0–50, 0–100, 0–150, and 0–200 ms (41.1–69.2% and 43.8– 64.3%, respectively). Therefore, ST resulted in favorable changes in neuromuscular responses in older women. 相似文献