全文获取类型
| 收费全文 | 909篇 |
| 免费 | 27篇 |
专业分类
| 教育 | 691篇 |
| 科学研究 | 127篇 |
| 各国文化 | 14篇 |
| 体育 | 30篇 |
| 文化理论 | 14篇 |
| 信息传播 | 60篇 |
出版年
| 2021年 | 11篇 |
| 2020年 | 18篇 |
| 2019年 | 29篇 |
| 2018年 | 27篇 |
| 2017年 | 45篇 |
| 2016年 | 26篇 |
| 2015年 | 21篇 |
| 2014年 | 20篇 |
| 2013年 | 171篇 |
| 2012年 | 21篇 |
| 2011年 | 14篇 |
| 2010年 | 14篇 |
| 2009年 | 24篇 |
| 2008年 | 17篇 |
| 2007年 | 15篇 |
| 2006年 | 15篇 |
| 2005年 | 20篇 |
| 2004年 | 14篇 |
| 2003年 | 7篇 |
| 2002年 | 18篇 |
| 2001年 | 12篇 |
| 2000年 | 14篇 |
| 1999年 | 11篇 |
| 1998年 | 9篇 |
| 1997年 | 13篇 |
| 1996年 | 10篇 |
| 1995年 | 10篇 |
| 1994年 | 9篇 |
| 1993年 | 7篇 |
| 1992年 | 10篇 |
| 1991年 | 15篇 |
| 1990年 | 15篇 |
| 1989年 | 11篇 |
| 1987年 | 9篇 |
| 1986年 | 8篇 |
| 1985年 | 18篇 |
| 1981年 | 10篇 |
| 1980年 | 12篇 |
| 1979年 | 7篇 |
| 1978年 | 11篇 |
| 1975年 | 7篇 |
| 1934年 | 11篇 |
| 1933年 | 8篇 |
| 1932年 | 6篇 |
| 1931年 | 7篇 |
| 1930年 | 6篇 |
| 1929年 | 7篇 |
| 1928年 | 9篇 |
| 1927年 | 6篇 |
| 1926年 | 9篇 |
排序方式： 共有936条查询结果，搜索用时 187 毫秒
11.
12.
Lee P. Rylands Simon J. Roberts Howard T. Hurst 《European Journal of Sport Science》2017,17(2):127-131
The aim of this study was to ascertain if gear ratio selection would have an effect on peak power and time to peak power production in elite Bicycle Motocross (BMX) cyclists. Eight male elite BMX riders volunteered for the study. Each rider performed three, 10-s maximal sprints on an Olympic standard indoor BMX track. The riders’ bicycles were fitted with a portable SRM power meter. Each rider performed the three sprints using gear ratios of 41/16, 43/16 and 45/16 tooth. The results from the 41/16 and 45/16 gear ratios were compared to the current standard 43/16 gear ratio. Statistically, significant differences were found between the gear ratios for peak power (F(2,14)?=?6.448; p?=?.010) and peak torque (F(2,14)?=?4.777; p?=?.026), but no significant difference was found for time to peak power (F(2,14)?=?0.200; p?=?.821). When comparing gear ratios, the results showed a 45/16 gear ratio elicited the highest peak power,1658?±?221?W, compared to 1436?±?129?W and 1380?±?56?W, for the 43/16 and 41/16 ratios, respectively. The time to peak power showed a 41/16 tooth gear ratio attained peak power in ?0.01?s and a 45/16 in 0.22?s compared to the 43/16. The findings of this study suggest that gear ratio choice has a significant effect on peak power production, though time to peak power output is not significantly affected. Therefore, selecting a higher gear ratio results in riders attaining higher power outputs without reducing their start time. 相似文献
13.
The theme for this issue was originally envisioned by the planners as the general topic of professional education; it has developed down to the more specific area of competencies in audiovisual education. Education and training programs for specialists in the educational media profession world-wide vary a great deal. Some countries are unable to provide more than on-the-job training for educators who have been selected or who desire to work in this speciality; while some very sophisticated programs exist such as at the Centre Audio-Visuel at St Cloud in Paris, the Centre for Educational Technology in the United Kingdom, or some of the institutions in the United States. 相似文献
14.
15.
Rabbi Howard I. Bogot 《Journal of Jewish Education》2013,79(3-4):29-31
The infrequently used label mishshamshim baKodesh may well capture the essential life-style most needed, and authentic, for bureaus of education; central agencies for Jewish education in communities whose variant demographics and structure mandate a caveat for generalizations. 相似文献
16.
17.
18.
19.
20.
Illya Lichtenberg Howard Lune Patrick McManimon Jr. 《Journal of Criminal Justice Education》2013,24(2):429-449
Contemporary textbooks in criminal justice use A Clockwork Orange to illustrate issues of correctional and sentencing practices. This article challenges criminal justice faculty and students to use the film to explore the political and social realities of punishment, in particular the examination of the moral question of “voluntariness” and the implications for “treatment” as a mechanism of social control. This paper explores the moral questions of state sponsored social control and using the film satire invites the student to examine their beliefs about the political and social realities of punishment and rehabilitation. 相似文献