全文获取类型
收费全文 | 2115篇 |
免费 | 28篇 |
专业分类
教育 | 1560篇 |
科学研究 | 89篇 |
各国文化 | 29篇 |
体育 | 223篇 |
综合类 | 1篇 |
文化理论 | 53篇 |
信息传播 | 188篇 |
出版年
2021年 | 12篇 |
2020年 | 23篇 |
2019年 | 45篇 |
2018年 | 54篇 |
2017年 | 62篇 |
2016年 | 67篇 |
2015年 | 41篇 |
2014年 | 62篇 |
2013年 | 529篇 |
2012年 | 59篇 |
2011年 | 57篇 |
2010年 | 39篇 |
2009年 | 34篇 |
2008年 | 54篇 |
2007年 | 49篇 |
2006年 | 37篇 |
2005年 | 42篇 |
2004年 | 46篇 |
2003年 | 43篇 |
2002年 | 40篇 |
2001年 | 28篇 |
2000年 | 45篇 |
1999年 | 18篇 |
1998年 | 23篇 |
1997年 | 30篇 |
1996年 | 29篇 |
1995年 | 34篇 |
1994年 | 27篇 |
1993年 | 25篇 |
1992年 | 27篇 |
1991年 | 33篇 |
1990年 | 25篇 |
1989年 | 31篇 |
1988年 | 17篇 |
1987年 | 18篇 |
1986年 | 28篇 |
1985年 | 27篇 |
1984年 | 14篇 |
1983年 | 27篇 |
1982年 | 25篇 |
1981年 | 23篇 |
1980年 | 17篇 |
1979年 | 29篇 |
1978年 | 16篇 |
1976年 | 15篇 |
1975年 | 9篇 |
1973年 | 17篇 |
1972年 | 7篇 |
1971年 | 12篇 |
1970年 | 9篇 |
排序方式: 共有2143条查询结果,搜索用时 31 毫秒
11.
The aim of this study was to examine the relationship between shoulder alignment and elbow angle during the delivery action of fast-medium bowlers. The elbow and upper trunk alignment were recorded for 13 high-performance bowlers (mean age 20 years) using a 12-camera Vicon motion analysis system operating at 250 Hz. The three highest velocity trials for "good" and "short" length deliveries were analysed. Results showed that bowlers with a more front-on shoulder alignment at back-foot impact and when the upper arm was horizontal to the ground experienced a significantly greater elbow flexion--extension range when compared with those who had a more side-on orientation at the same point in the delivery action. Bowlers with greater shoulder counter-rotation also recorded higher elbow flexion and subsequently extension during the period from upper arm horizontal to ball release. Shoulder alignment and elbow angles were similar for "short" and "good" length deliveries. It was concluded that bowlers with a more front-on shoulder orientation at back-foot impact demonstrated a higher elbow extension from upper arm horizontal to ball release and are therefore more likely to infringe International Cricket Council elbow tolerance levels, compared with those who adopt a more side-on shoulder orientation at back-foot impact. 相似文献
12.
J. Bruce Francis Michalina Vaughan Colin Flood Page Sally Tomlinson R. A. Becher Margaret C. Ives John Urry K. G. Collier Meir Zadok Charles Carter Jürgen Schramm Jean Barry Graeme C. Moodie Donald Bligh R. A. King D. G. Mulcahy Peter Scott F. R. Charmer T. R. Bone John A. Hughes Roger Greenhough Alec M. Ross John Wakeford Joyce Skinner Duncan B. Nimmo Cedric Cullingford L. R. B. Elton 《Higher Education》1979,8(6):709-744
13.
14.
15.
16.
17.
Bruce Charles Kloot 《British Journal of Sociology of Education》2015,36(6):958-975
This paper provides a history of academic development by examining how a South African institution coped with the potent social forces confronting it before the collapse of apartheid. Theoretically, it draws on the framework of Pierre Bourdieu and engages with a paper written a decade ago by Naidoo, who also used Bourdieu to understand institutional change in South Africa in the late 1980s. Through contrasting the habitus of two professors, it is argued that academic development helps to preserve the autonomy of the university field by refracting forces impinging on it from the economic and political realms. 相似文献
18.
19.
20.