首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1835篇
  免费   41篇
教育   1539篇
科学研究   53篇
各国文化   31篇
体育   78篇
综合类   2篇
文化理论   11篇
信息传播   162篇
  2023年   14篇
  2022年   12篇
  2021年   24篇
  2020年   34篇
  2019年   53篇
  2018年   85篇
  2017年   100篇
  2016年   79篇
  2015年   43篇
  2014年   57篇
  2013年   473篇
  2012年   54篇
  2011年   53篇
  2010年   46篇
  2009年   40篇
  2008年   57篇
  2007年   50篇
  2006年   38篇
  2005年   43篇
  2004年   44篇
  2003年   32篇
  2002年   28篇
  2001年   26篇
  2000年   28篇
  1999年   25篇
  1998年   16篇
  1997年   16篇
  1996年   22篇
  1995年   19篇
  1994年   11篇
  1993年   11篇
  1992年   9篇
  1991年   20篇
  1990年   13篇
  1989年   17篇
  1988年   16篇
  1987年   11篇
  1986年   7篇
  1985年   12篇
  1984年   12篇
  1983年   9篇
  1982年   8篇
  1981年   11篇
  1980年   8篇
  1979年   8篇
  1978年   12篇
  1977年   7篇
  1976年   7篇
  1971年   7篇
  1969年   6篇
排序方式: 共有1876条查询结果,搜索用时 31 毫秒
71.
72.
73.
74.
75.
Project GRAD (Graduate Ready for Activity Daily) evaluates a university course to promote physical activity. In a randomized study, 338 university seniors participated in either an intervention or control course for academic credit, and posttest data were collected on 321. The control course was knowledge-oriented. The intervention course taught behavior change skills in weekly lectures and peer-led labs. Physical activity was assessed with 7-Day Physical Activity Recall interviews. The intervention had no significant effects on men. Among women, the intervention increased total physical activity during leisure, strengthening exercises, and flexibility exercise. This university course had the intended effects of promoting healthful patterns of physical activity among women, but no effects were observed on men, who were more active than women at baseline.  相似文献   
76.
77.
The kinematic analysis of competition breaststroke swimming has tended to focus on the mean values of swimming speed, stroke rate and stroke length; values in individual lengths, as well as the start, turns and finish, have largely been ignored. This study includes all such variables and aims to improve the coach's holistic understanding of breaststroke racing by determining the relationships and differences between and within these selected kinematic variables. We also compare 100-m events with 200-m events to determine if there are characteristic differences between them. Competitive breaststroke swimming performances in 100-m events (males: n = 159, finishing time = 65.05 +/- 2.62 s; females: n = 158, finishing time = 74.04 +/- 3.66 s) and 200-m events (males: n = 159, finishing time = 141.47 +/- 6.15 s; females: n = 158, finishing time = 158.66 +/- 7.87 s) were collected and analysed from 12 world, international and national championships. The better 100-m and 200-m breaststroke swimmers were found to demonstrate greater competency in the kinematic variables measured, except stroke kinematics, which were unique to each individual. These findings suggest that coaches should place emphasis on all of the kinematic components in training and that they should attempt to identify the stroke rate to stroke length ratio most appropriate for the individual. Finally, characteristic differences do exist between the 100-m and 200-m events, which has implications for how swimmers might train for each event.  相似文献   
78.
79.
There is great art in some commercially produced motion pictures, often with religious significance. There are ways of using such films educationally  相似文献   
80.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号