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51.
Ron Johnston 《Perspectives: Policy and Practice in Higher Education》2013,17(4):115-118
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Social class and participation in further education: evidence from the Youth Cohort Study of England and Wales 总被引:1,自引:1,他引:1
Ron Thompson 《British Journal of Sociology of Education》2009,30(1):29-42
This paper examines the class distribution of young people, aged 16–17 years, in colleges of further education (FE) using data from the Youth Cohort Study. It finds that, contrary to popular perceptions of FE colleges as being for ‘other people’s children’, middle‐class students as well as working‐class students are well represented. However, this does not imply that FE colleges are institutions of choice; middle‐class representation is often related to lower achievement and, for low‐achieving working‐class students, leaving education entirely is more likely than entry to FE. These findings are explored using notions of habitus and field. Their relationship with studies of the education of middle‐class children is also discussed, and the paper suggests that research on class in FE colleges must come to terms with middle‐class presence. 相似文献
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This study reports the transformations of 3 science teachers who conducted action research projects following a model, unique
to our graduate program, which follows the theoretical tenets of adult and transformative learning theory. Teachers video
their teaching, engage in weekly peer group collaborative reflection sessions, collaborate with students, and consult with
other sources to identify goals for improving their teaching practices, develop action plans, and analyze the results of their
actions. As a result of this process, all 3 teachers changed their pedagogical approach from a teacher centered textbook driven
approach to a student centered inquiry based approach. Implications of using this model as a powerful means of professional
development for science teachers are explored. 相似文献
58.
For the athlete training hard, nutritional supplements are often seen as promoting adaptations to training, allowing more consistent and intensive training by promoting recovery between training sessions, reducing interruptions to training because of illness or injury, and enhancing competitive performance. Surveys show that the prevalence of supplement use is widespread among sportsmen and women, but the use of few of these products is supported by a sound research base and some may even be harmful to the athlete. Special sports foods, including energy bars and sports drinks, have a real role to play, and some protein supplements and meal replacements may also be useful in some circumstances. Where there is a demonstrated deficiency of an essential nutrient, an increased intake from food or from supplementation may help, but many athletes ignore the need for caution in supplement use and take supplements in doses that are not necessary or may even be harmful. Some supplements do offer the prospect of improved performance; these include creatine, caffeine, bicarbonate and, perhaps, a very few others. There is no evidence that prohormones such as androstenedione are effective in enhancing muscle mass or strength, and these prohormones may result in negative health consequences, as well as positive drug tests. Contamination of supplements that may cause an athlete to fail a doping test is widespread. 相似文献
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Iain Hunter Aubree McLeod Dru Valentine Tyler Low Jared Ward Ron Hager 《Journal of sports sciences》2013,31(20):2367-2373
ABSTRACTThe choice of marathon racing shoes can greatly affect performance. The purpose of this study is to metabolically and mechanically compare the consumer version of the Nike Vaporfly 4% shoe to two other popular marathon shoes, and determine differences in running economy. Nineteen subjects performed two 5-minute trials at 4.44m/s wearing the Adidas Adios Boost (AB), Nike Zoom Streak (ZS), and Nike Vaporfly 4% (VP) in random order. Oxygen uptake was recorded during minutes 3–5 and averaged across both shoe trials. On a second day, subjects wore reflective markers, and performed a 3-minute trial in each shoe. Motion and force data were collected over the final 30 seconds of each trial. VP oxygen uptake was 2.8% and 1.9% lower than the AB and ZS. Stride length, plantar flexion velocity, and center of mass vertical oscillation were significantly different in the VP. The percent benefit of the VP over AB shoe was predicted by subject ground time. These results indicate that use of the VP shoe results in improved running economy, partially due to differences in running mechanics. Subject variation in running economy improvement is only partially explained by variation in ground time. 相似文献