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   458篇
  免费   4篇
教育   332篇
科学研究   22篇
各国文化   11篇
体育   53篇
综合类   2篇
文化理论   6篇
信息传播   36篇
  2022年   6篇
  2020年   4篇
  2019年   10篇
  2018年   12篇
  2017年   12篇
  2016年   18篇
  2015年   4篇
  2014年   13篇
  2013年   111篇
  2012年   9篇
  2011年   9篇
  2010年   6篇
  2009年   8篇
  2008年   16篇
  2007年   15篇
  2006年   15篇
  2005年   5篇
  2004年   6篇
  2003年   11篇
  2002年   9篇
  2001年   5篇
  2000年   10篇
  1998年   4篇
  1997年   5篇
  1996年   5篇
  1995年   8篇
  1994年   4篇
  1992年   4篇
  1991年   5篇
  1990年   5篇
  1989年   6篇
  1988年   8篇
  1987年   5篇
  1986年   3篇
  1985年   3篇
  1984年   4篇
  1983年   4篇
  1982年   11篇
  1981年   4篇
  1980年   5篇
  1979年   4篇
  1978年   7篇
  1977年   5篇
  1975年   3篇
  1974年   3篇
  1973年   3篇
  1972年   3篇
  1968年   5篇
  1962年   2篇
  1959年   2篇
排序方式: 共有462条查询结果,搜索用时 250 毫秒
111.
112.
Purpose: The purpose of this study was to determine the extent to which a sport education season of fitness could provide students with recommended levels of in-class moderate-to-vigorous physical activity (MVPA) while also increasing students’ fitness knowledge and fitness achievement. Method: One hundred and sixty-six 5th-grade students (76 boys, 90 girls) participated in a 20-lesson season called “CrossFit Challenge” during a 4-week period. The Progressive Aerobic Cardiovascular Endurance Run, push-ups, and curl-ups tests of the FITNESSGRAM® were used to assess fitness at pretest and posttest, while fitness knowledge was assessed through a validated, grade-appropriate test of health-related fitness knowledge (HRF). Physical activity was measured with Actigraph GT3X triaxial accelerometers. Results: Results indicated a significant time effect for all fitness tests and the knowledge test. Across the entire season, the students spent an average of 54.5% of lesson time engaged in MVPA, irrespective of the type of lesson (instruction, free practice, or competition). Conclusions: The results suggest that configuring the key principles of sport education within a unit of fitness is an efficient model for providing students with the opportunity to improve fitness skill and HRF knowledge while attaining recommended levels of MVPA.  相似文献   
113.
114.
115.
116.
117.
118.
This article describes a laboratory servomechanism and an associated laboratory sequence which were designed to complement theoretical first courses in servomechanisms at either senior-year undergraduate or first-year graduate level. The primary aims were to provide the student with the means for an experimental verification of theoretical results and, at the same time, to encourage him to establish some feeling for the physical reality of an operating feedback system.  相似文献   
119.
The purposes of this study were to describe and compare the specific physical activity choices and sedentary pursuits of African American and Caucasian American girls. Participants were 1,124 African American and 1,068 Caucasian American eighth-grade students from 31 middle schools. The 3-Day Physical Activity Recall (3DPAR) was used to measure participation in physical activities and sedentary pursuits. The most frequently reported physical activities were walking, basketball, jogging or running, bicycling, and social dancing. Differences between groups were found in 11 physical activities and 3 sedentary pursuits. Participation rates were higher in African American girls (p < or = .001) for social dancing, basketball, watching television, and church attendance but lower in calisthenics, ballet and other dance, jogging or running, rollerblading, soccer, softball or baseball, using an exercise machine, swimming, and homework. Cultural differences of groups should be considered when planning interventions to promote physical activity.  相似文献   
120.
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