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J.C. Slater 《Journal of The Franklin Institute》1929,207(4):449-455
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Strength and power athletes are primarily interested in enhancing power relative to body weight and thus almost all undertake some form of resistance training. While athletes may periodically attempt to promote skeletal muscle hypertrophy, key nutritional issues are broader than those pertinent to hypertrophy and include an appreciation of the sports supplement industry, the strategic timing of nutrient intake to maximize fuelling and recovery objectives, plus achievement of pre-competition body mass requirements. Total energy and macronutrient intakes of strength-power athletes are generally high but intakes tend to be unremarkable when expressed relative to body mass. Greater insight into optimization of dietary intake to achieve nutrition-related goals would be achieved from assessment of nutrient distribution over the day, especially intake before, during, and after exercise. This information is not readily available on strength-power athletes and research is warranted. There is a general void of scientific investigation relating specifically to this unique group of athletes. Until this is resolved, sports nutrition recommendations for strength-power athletes should be directed at the individual athlete, focusing on their specific nutrition-related goals, with an emphasis on the nutritional support of training. 相似文献
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Catherine C. Chase Laura J. Malkiewich Alison Lee Stefan Slater Ahram Choi Chenmu Xing 《British journal of educational technology : journal of the Council for Educational Technology》2021,52(1):57-74
It is difficult to motivate learners to seek out and persist at challenging learning tasks where failure is likely. However, in game environments, people seem highly motivated to engage with challenges and respond productively to failure. Many typical game features purportedly enhance intrinsic motivation and self-efficacy, which should improve students’ reactions to challenge and failure, which should in turn enhance learning. An experimental study with early middle school students tested these assumptions by comparing a “Full” version of a typical, commercial programming game to a “Minimal” version of the same game where common game features such as narrative, performance metrics, high-quality graphics, and sound were removed. In contrast to our hypotheses, players of the Full Game were less likely to choose coding challenges, were less tolerant of coding failures and gained less coding knowledge. Intrinsic motivation and self-efficacy did not differ between conditions. Correlational analyses showed that failure tolerance and challenge seeking may critically affect learning from educational games. The current study offers an existence proof that some common game features can hinder players' failure tolerance, challenge-seeking and learning, in certain game contexts. Future research should isolate the effects of individual game features, test generalizability and explore which contextual variables influence the findings. 相似文献
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Alan Slater 《Action Learning: Research and Practice》2017,14(3):258-268
In recent years, NHS Ambulance Trusts throughout the UK have consistently failed to achieve their response time targets for both actual and potential life-threatening calls. To avoid a media and public outcry, the NHS response has been to change the basic parameters upon which the response time targets are calculated. An action learning study, which considered patient experience from initial response to outcome, concluded that the ambulance service must move away from the nearest crew response model to one which provides a defined multi-organisational service to specific categories of need. A key issue with the learning sets, which were made up of front-line crews, was understanding the Trust-wide picture and where acceptable new procedures could provide economic benefits to the Trust, benefits to the patients and help achieve the response time targets. A simulation model driven by parameters agreed by the action learning sets provided proof that new procedures would generate the required benefits. The learning sets also identified that the public should adjust their expectations to understanding that an immediate front-line ambulance response would only be despatched in life-threatening cases, but there would be alternative slower responses for all other cases. 相似文献
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加拿大英语除了具有鲜明的创新性特点以外,其保守性特点也很突出。18世纪末英国殖民者将当时的英语带到北美。随着时代的变迁,英语在祖国发生了变化,但大洋彼岸因种种因素没有发生同样的变化。因此在今天的加拿大英语中却仍可寻到昔日英国英语的痕迹。这在语音、词汇和语法方面均有体现。加拿大英语保守性特点的成因主要有语言接触因素、社会因素和移民源的心理因素。通过对加拿大英语保守性特点及其成因的分析,有助于英语的学习与传播。 相似文献
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Home advantage in team games is well proven and the influence of the crowd upon officials' decisions has been identified as a plausible cause. The aim of this study was to assess the significance of home advantage for five event groups selected from the Summer Olympic Games between 1896 and 1996, and put home advantage in team games in context with other sports. The five event groups were athletics and weightlifting (predominantly objectively judged), boxing and gymnastics (predominantly subjectively judged) and team games (involving subjective decisions). The proportion of points won was analysed as a binomial response variable using generalized linear interactive modelling. Preliminary exploration of the data highlighted the need to control for the proportion of competitors entered and to split the analysis pre- and post-war. Highly significant home advantage was found in event groups that were either subjectively judged or rely on subjective decisions. In contrast, little or no home advantage (and even away advantage) was observed for the two objectively judged groups. Officiating system was vital to both the existence and extent of home advantage. Our findings suggest that crowd noise has a greater influence upon officials' decisions than players' performances, as events with greater officiating input enjoyed significantly greater home advantage. 相似文献