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Andrew Gemant 《Journal of The Franklin Institute》1942,234(6):519-533
A method is presented that allows the computation of the impulse strength of insulating oil and of solid and gas-filled cables. The principle of the calculation is that breakdown is initiated by currents due to an electronic emission from the cathode; in gas-filled cables these currents are increased by means of gaseous ionization in the butt spaces. Approximate equations are deduced and numerical impulse strength values for insulating oil and solid cable computed, resulting in fair agreement with experimental observations. Extending the equations to gas-filled cables, numerical impulse data for varying gas pressure and for varying radial butt-space alignment are evaluated. 相似文献
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Andrew Turner 《British Journal of Special Education》1998,25(4):164-167
Andrew Turner, who teaches in a school for pupils with severe learning difficulties, considers the teaching of history by teachers of such pupils and suggests that the skills of imaginative reconstruction and empathy are relatively neglected areas, particularly when dealing with distant historical periods. Recent research with mainstream primary pupils illustrates the possible parallels and the article gives details of a small-scale study of one group of Key Stage 3 pupils. 相似文献
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Andrew Davis 《Journal of Philosophy of Education》2004,38(1):21-36
This paper discusses the current fashion for brain‐based learning, in which value‐laden claims about learning are grounded in neurophysiology. It argues that brain science cannot have the ‘authority’ about learning that some seek to give it. It goes on to discuss whether the claim that brain science is relevant to learning involves a category mistake. The heart of the paper tries to show how the contribution of brain science to our grasp of the nature of learning is limited in principle. Finally the paper explores the potential of brain science to illuminate specific learning disabilities. 相似文献
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This study was an initial attempt to investigate the relationships among self-efficacy, outcome expectancy, behavioral intention, and actual behavior over time in a beginning weight training class. A total of 109 participants completed questionnaires assessing their self-efficacy, outcome expectancy, and intentions for future weight training. Their attendance and workout logs were calculated as a measure of actual behavior. Correlation analyses revealed significant positive relationships among all the variables during both program periods. Multiple regression analyses indicated that outcome expectancy initially played a more important role than self-efficacy in predicting behavioral intention and actual behavior. However, self-efficacy appeared more influential at midprogram. Findings of this study can enhance our understanding of the determining factors for individuals' motivated behaviors in college physical activity classes. 相似文献
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