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排序方式: 共有173条查询结果,搜索用时 15 毫秒
81.
Moresi MP Bradshaw EJ Greene D Naughton G 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(2):73-84
The aim of this study was to evaluate the reliability of two long jump tasks and their ability to predict 10 m sprint performance in elite adolescent female athletes. Eight junior national-level female track and field athletes completed three standing (SLJ) and reactive long jumps (RLJ) on portable force plates, followed by three 10 m sprints. Intra-class correlation coefficients (ICC) and coefficients of variation (CV) were calculated to examine reliability. Linear regression results identified the best predictor of average and best 10 m sprint time from the jump kinematic and kinetic measures. The ICCs and CVs indicated good reliability for the majority of kinetic measures however, better reliability was reported for the SLJ. The SLJ was a good predictor of best and average 10 m sprint time, with average horizontal power the best predictor of performance (best; R2 = 0.751, p = 0.003, Standard Error of Estimate (SEE)% = 2.2 average; R2 = 0.708, p = 0.005, SEE% = 2.5). 相似文献
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Anika B. Anthony Howard Greene Paul E. Post Andrew Parkhurst Xi Zhan 《European Journal of Engineering Education》2016,41(6):623-637
ABSTRACTThis paper describes an engineering outreach programme designed to increase the interest of under-represented youth in engineering and to disseminate pre-engineering design challenge materials to K-12 educators and volunteers. Given university students’ critical role as facilitators of the outreach programme, researchers conducted a two-year design experiment to examine the programme's effectiveness at preparing university students to lead pre-engineering activities. Pre- and post-surveys incorporated items from the Student Engagement sub-scale of the Teacher Sense of Efficacy Scale. Surveys were analysed using paired-samples t-test. Interview and open-ended survey data were analysed using discourse analysis and the constant comparative method. As a result of participation in the programme, university students reported a gain in efficacy to lead pre-engineering activities. The paper discusses programme features that supported efficacy gains and concludes with a set of design principles for developing learning environments that effectively prepare university students to facilitate pre-engineering outreach programmes. 相似文献
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Greene MT 《Endeavour》2006,30(2):55-59
Computer climate models are some of the most complex scientific structures ever conceived. Consisting of hundreds of thousands of equations and running on supercomputers capable of trillions of operations per second, they chart the evolution of past and future climates across thousands of years. These simulations are breathtaking in their qualitative detail and vastly ambitious in their quantitative exactitude. However, their progress has recently been challenged by the very size and complexity of the models, factors that are also paralleled in the communities of scientists that build them. This complex co-evolution of computers and scientific communities gives us insight into the promise and limits of sciences driven by exponential increases in computing power. 相似文献
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Firetto Carla M. Murphy P. Karen Greene Jeffrey A. Li Mengyi Wei Liwei Montalbano Cristin Hendrick Brendan Croninger Rachel M. V. 《Instructional Science》2019,47(2):181-214
Instructional Science - Effective interventions are needed to bolster students’ argumentation capacities, an area in which they consistently struggle. Quality Talk (QT) is an approach to... 相似文献
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Imagining futures: The public school and possibility 总被引:1,自引:0,他引:1
Maxine Greene 《课程研究杂志》2013,45(2):267-280