全文获取类型
| 收费全文 | 78篇 |
| 免费 | 1篇 |
专业分类
| 教育 | 73篇 |
| 体育 | 4篇 |
| 信息传播 | 2篇 |
出版年
| 2021年 | 2篇 |
| 2020年 | 1篇 |
| 2019年 | 1篇 |
| 2018年 | 4篇 |
| 2017年 | 2篇 |
| 2016年 | 1篇 |
| 2015年 | 2篇 |
| 2014年 | 2篇 |
| 2013年 | 8篇 |
| 2011年 | 1篇 |
| 2010年 | 1篇 |
| 2009年 | 1篇 |
| 2005年 | 1篇 |
| 2003年 | 2篇 |
| 2000年 | 1篇 |
| 1999年 | 1篇 |
| 1998年 | 2篇 |
| 1996年 | 3篇 |
| 1995年 | 2篇 |
| 1994年 | 4篇 |
| 1993年 | 3篇 |
| 1992年 | 3篇 |
| 1991年 | 1篇 |
| 1990年 | 2篇 |
| 1989年 | 3篇 |
| 1987年 | 2篇 |
| 1983年 | 2篇 |
| 1982年 | 1篇 |
| 1981年 | 1篇 |
| 1980年 | 2篇 |
| 1979年 | 5篇 |
| 1978年 | 1篇 |
| 1976年 | 3篇 |
| 1975年 | 2篇 |
| 1973年 | 2篇 |
| 1972年 | 2篇 |
| 1971年 | 2篇 |
排序方式： 共有79条查询结果，搜索用时 14 毫秒
31.
Ted Polglaze Brian Dawson Alec Buttfield Peter Peeling 《Journal of sports sciences》2018,36(2):140-148
The purpose of this study was to ascertain the typical metabolic power characteristics of elite men’s hockey, and whether changes occur within matches and throughout an international tournament. National team players (n = 16), divided into 3 positional groups (strikers, midfielders, defenders), wore Global Positioning System devices in 6 matches. Energetic (metabolic power, energy expenditure) and displacement (distance, speed, acceleration) variables were determined, and intensity was classified utilising speed, acceleration and metabolic power thresholds. Midfielder’s average metabolic power (11.8 ± 1.0 W · kg?1) was similar to strikers (11.1 ± 1.3 W · kg?1) and higher than defenders (10.8 ± 1.2 W · kg?1, P = 0.001). Strikers (29.71 ± 3.39 kJ · kg?1) expended less energy than midfielders (32.18 ± 2.67 kJ · kg?1, P = 0.014) and defenders (33.23 ± 3.96 kJ · kg?1, P < 0.001). Energetic variables did not change between halves or across matches. Across all positions, over 45% of energy expenditure was at high intensity (>20 W · kg?1). International hockey matches are intense and highly intermittent; however, intensity is maintained throughout matches and over a tournament. In isolation, displacement measures underestimate the amount of high-intensity activity, whereas the integration of instantaneous speed and acceleration provides a more comprehensive assessment of the demands for variable-speed activity typically occurring in hockey matches. 相似文献
32.
Journal of Science Education and Technology - Web-based learning is a growing field in education, yet empirical research into the design of high quality Web-based university science instruction is... 相似文献
33.
34.
35.
36.
37.
Sarah L. Rodriguez Kelly Cunningham Alec Jordan 《Community College Journal of Research & Practice》2017,41(4-5):232-238
ABSTRACTThis article explores the application of science identity development theory for women of color interested in the science disciplines; and it advocates for taking an intersectional approach to understanding how women of color form science identities. The article also challenges community college administrators and scholars to focus on redefining science identity development theory within the community college setting as a means to enhance success for women of color pursuing academic work in scientific disciplines. 相似文献
38.
39.
40.