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11.
Lockwood KL Frost G 《Sports biomechanics / International Society of Biomechanics in Sports》2007,6(2):145-154
This study assessed changes in selected physiological and kinematic variables over 6 weeks of treadmill skating in an effort to understand the process of habituation to this novel training modality. Seven male, Atom-A hockey players who were injury-free and had no previous treadmill skating experience participated in the study. Players performed four 1-min skating bouts at progressively increasing speeds, each week, for 6 weeks. One speed (10.5 km/h) was repeated weekly to allow for assessment of the habituation process. Our criteria for habituation were: a decrease in stride rate, heart rate and rating of perceived exertion, and an increase in stride length, trunk angle and vertical movement of the centre of mass, leading to a plateau, over the course of the 6-week study. Significant decreases were seen in stride rate, heart rate and ratings of perceived exertion, and significant increases were found in stride length. Some of these changes were evident after only one week of training and all were present by week 4. After 6 weeks (24 min) of exposure to treadmill skating, all participants displayed a visibly more efficient skating style. 相似文献
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Li Zhao Yi Zheng Junbang Zhao Guoqiang Li Brian J. Compton Rui Zhang Fang Fang Gail D. Heyman Kang Lee 《Child development》2023,94(4):922-940
Academic cheating is common, but little is known about its early emergence. It was examined among Chinese second to sixth graders (N = 2094; 53% boys, collected between 2018 and 2019) using a machine learning approach. Overall, 25.74% reported having cheated, which was predicted by the best machine learning algorithm (Random Forest) at a mean accuracy of 81.43%. Cheating was most strongly predicted by children's beliefs about the acceptability of cheating and the observed prevalence and frequency of peer cheating at school. These findings provide important insights about the early development of academic cheating, and how to promote academic integrity and limit cheating before it becomes entrenched. The present research demonstrates that machine learning can be effectively used to analyze developmental data. 相似文献
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Gail A. Rathbun Jane Leatherman Rebecca Jensen 《Assessment & Evaluation in Higher Education》2017,42(4):548-563
This study aimed to assess the impact of an entire academic teacher development programme at a Midwestern masters comprehensive university in the United States over a period of five years by examining changes in teaching and student outcomes of nine randomly selected programme participants. Researchers analysed syllabi, course evaluations, grade distributions, programme activity reports, interviews and vita, and concluded that the centre’s impact was greatest on tenure-track faculty who struggled with their teaching. Far more useful to future improvement, however, were the insights gained from reflection on study methods, the researchers’ emotional responses to their findings, their struggle to make sense of the data and grappling with the definition of ‘impact’. In this paper, the researchers share useful lessons learned and illustrate the difficulties inherent in evaluating academic development programmes, with a view to qualifying recommendations currently prevailing in the literature. 相似文献
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Although teaching has been described as a profoundly emotional activity, little is known about the emotional demands faced by teachers or how this impacts on their well-being. This study examined relationships between ‘emotional labour’, burnout (emotional exhaustion, depersonalisation and personal accomplishment) and job satisfaction in a sample of UK teachers. Also examined was whether workplace social support moderated any relationships found between emotional labour and strain. The relationship between job experience and emotional labour was also investigated. Six hundred and twenty-eight teachers working in secondary schools in the UK completed questionnaires. Significant associations were observed between emotional labour and all outcomes, with a positive relationship found between emotional labour and personal accomplishment. Some evidence was found that social support mitigates the negative impact of emotional demands on emotional exhaustion, feelings of personal accomplishment and job satisfaction. More experienced teachers reported higher levels of emotional labour. Findings highlight the need for teacher-training programmes to raise awareness of the emotional demands of teaching and consider ways to enhance emotion regulation skills in experienced as well as recently qualified staff. 相似文献