全文获取类型
收费全文 | 231篇 |
免费 | 4篇 |
专业分类
教育 | 155篇 |
科学研究 | 33篇 |
各国文化 | 3篇 |
体育 | 20篇 |
文化理论 | 2篇 |
信息传播 | 22篇 |
出版年
2023年 | 3篇 |
2021年 | 5篇 |
2020年 | 4篇 |
2019年 | 17篇 |
2018年 | 6篇 |
2017年 | 10篇 |
2016年 | 6篇 |
2015年 | 5篇 |
2014年 | 9篇 |
2013年 | 34篇 |
2012年 | 4篇 |
2010年 | 3篇 |
2009年 | 8篇 |
2007年 | 5篇 |
2006年 | 7篇 |
2005年 | 5篇 |
2004年 | 4篇 |
2003年 | 3篇 |
2002年 | 4篇 |
2001年 | 7篇 |
2000年 | 3篇 |
1999年 | 6篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1994年 | 2篇 |
1993年 | 3篇 |
1992年 | 2篇 |
1990年 | 4篇 |
1989年 | 2篇 |
1986年 | 2篇 |
1984年 | 2篇 |
1982年 | 3篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1970年 | 3篇 |
1951年 | 6篇 |
1946年 | 3篇 |
1939年 | 1篇 |
1937年 | 1篇 |
1935年 | 1篇 |
1927年 | 1篇 |
1925年 | 2篇 |
1922年 | 1篇 |
1892年 | 1篇 |
1859年 | 1篇 |
1840年 | 1篇 |
1828年 | 1篇 |
排序方式: 共有235条查询结果,搜索用时 0 毫秒
11.
12.
Bradley J. Cardinal Spencer D. Sorensen Marita K. Cardinal 《Research quarterly for exercise and sport》2013,84(4):503-512
This study gives an overview of the history of required physical education in America's 4-year colleges and universities and provides an update on the requirement status. After randomly identifying 354 institutions, we searched their respective websites to determine whether physical education was a requirement to earn a baccalaureate degree. The major finding was that the physical education requirement declined from an all-time high of 97% in the 1920s and 1930s to an all-time low of 39.55% in 2010. Given society's ongoing health challenges and the important role of physical activity in maintaining health, this seems counterintuitive. It is also inconsistent with the National Physical Activity Plan (2010). 相似文献
13.
14.
15.
16.
17.
Learning & Behavior - Thomas and Empedocles (1992) proposed that in a retention test, the relative enhancement of responding when the context that had accompanied training is again present... 相似文献
18.
19.
C C Spencer 《Bulletin of the Medical Library Association》1970,58(2):189-190
UNIT COSTS OF PROVIDING INTERLIBRARY LOANS AND PHOTOCOPIES WERE DETERMINED BY A METHOD NOT PREVIOUSLY USED FOR LIBRARY COST STUDIES: random time sampling with self-observation. The working time of all appropriate personnel was sampled using Random Alarm Mechanisms and a structured checklist of tasks. The total lender's unit cost per request received, including direct labor, materials, fringe benefits, and overhead, was $1.526 for originals mailed postpaid by lender, and $1.534 for photocopies mailed. Corresponding unit costs per request filled were: originals, $1.932, and photocopies, $1.763. 相似文献
20.
Neil H Spencer 《Teaching Statistics》1999,21(3):88-89
Students often find the concepts of bias and consistency hard to understand intuitively. This article presnts means of demonstrating these concepts using a computer so that students, once they have seen them in action, can more readily grasp their meanings and imlications. 相似文献