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Even though there are increasing numbers of PhD students in the distance mode, our current understanding of PhD candidature at a distance is limited and incomplete. On the one end of the spectrum are accounts of unhappy and isolated doctoral students who are separated from communities of practice. At the same time, literature offers accounts of PhD students at a distance who view themselves as agential and autonomous and are happy not to get sidetracked by others. In this reflection we ask what distinguishes the conventional PhD student from one who is studying at a distance, and invite more research on self-efficacy and vicarious learning of PhD students at a distance. 相似文献
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Currently, all elite high jumpers use the Fosbury Flop technique with a curved approach. This suggests that the curved approach presents some clear advantage, although there is no general agreement upon the mechanism or the mechanics. This study aimed to determine the characteristics of the approach curve and to investigate how it contributes to the generation of somersault rotation. A simple theoretical model was used to demonstrate that a tightening approach curve would change the inward lean towards the centre of the curve into outwards lean. Three-dimensional video analysis was used to record the performances of two elite male high jumpers in competition. It was found that in each case the radius of the approach curve and the inward lean angle both decreased towards the end of the approach. The amount of outward lean angular velocity generated was shown to be a major proportion of the required somersault angular velocity for a jump. It was concluded that the main advantage of a curved approach was that it resulted in the generation of somersault velocity providing the curve tightened towards the end of the approach. 相似文献
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F. Sayako Earle Stephanie N. Del Tufo Tanya M. Evans Jarrad A. G. Lum Laurie E. Cutting Michael T. Ullman 《Mind, Brain, and Education》2020,14(2):176-186
Prior research has demonstrated that linguistic skills and knowledge contribute to successful reading acquisition. In contrast, little is known about the influence of domain‐general learning abilities on reading. To investigate associations between general memory functions and reading during the early stages of learning to read, performance measures of word‐level reading and of declarative and procedural learning were obtained in a cohort of 140 children, annually during their first 4 years of school. We hypothesized that differences in learning task performance would relate to reading ability in the early years, when children are first learning to read. We employed a series of linear mixed effects models to test the relationships between learning abilities and reading across time. Declarative learning performance predicted reading ability in first grade, while procedural learning performance predicted reading ability in second grade. Our findings suggest that reading acquisition may depend in part on general capacities for learning. 相似文献
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《海洋奇缘》(Moana)是美国迪士尼动画公司的第57部动画长片.
故事讲述了主宰风和海的半神毛伊(Maui)偷走了女神特菲提(Te Fiti)之心,导致岩浆魔鬼厄卡(Te Ka)陷入疯狂的状态,南太平洋各小岛也面临着毁灭的威胁.一千多年后,某小岛上的酋长之女莫阿娜(Moana)在父母的呵护下渐渐长大,童年时她曾偶然捡到特菲提之心,亦曾受到大海的召唤,然而父亲却严厉禁止莫阿娜出海,即使小岛正遭受着毁灭的威胁.从奶奶那里,莫阿娜知晓了他们这一族人的历史.于是为了拯救小岛,她毅然出海去寻找被困在某地的毛伊,好让他归还特菲提之心.历经千辛万苦,莫阿娜终于见到了这个传说中高傲自大的半神.然而,毛伊却因为担心特菲提之心会带来霉运而拒绝完成这个使命.最后,在命运的指引下,毛伊不得不随着莫阿娜踏上了波澜壮阔的海洋冒险之旅. 相似文献