全文获取类型
收费全文 | 4647篇 |
免费 | 67篇 |
国内免费 | 6篇 |
专业分类
教育 | 3627篇 |
科学研究 | 244篇 |
各国文化 | 84篇 |
体育 | 311篇 |
综合类 | 2篇 |
文化理论 | 64篇 |
信息传播 | 388篇 |
出版年
2021年 | 29篇 |
2020年 | 57篇 |
2019年 | 88篇 |
2018年 | 106篇 |
2017年 | 136篇 |
2016年 | 113篇 |
2015年 | 95篇 |
2014年 | 104篇 |
2013年 | 1179篇 |
2012年 | 81篇 |
2011年 | 109篇 |
2010年 | 74篇 |
2009年 | 100篇 |
2008年 | 114篇 |
2007年 | 106篇 |
2006年 | 108篇 |
2005年 | 94篇 |
2004年 | 88篇 |
2003年 | 104篇 |
2002年 | 86篇 |
2001年 | 71篇 |
2000年 | 75篇 |
1999年 | 66篇 |
1998年 | 60篇 |
1997年 | 66篇 |
1996年 | 70篇 |
1995年 | 62篇 |
1994年 | 56篇 |
1993年 | 59篇 |
1992年 | 54篇 |
1991年 | 64篇 |
1990年 | 55篇 |
1989年 | 59篇 |
1988年 | 48篇 |
1987年 | 45篇 |
1986年 | 46篇 |
1985年 | 59篇 |
1984年 | 33篇 |
1983年 | 42篇 |
1982年 | 41篇 |
1981年 | 46篇 |
1980年 | 33篇 |
1979年 | 65篇 |
1978年 | 31篇 |
1977年 | 49篇 |
1976年 | 33篇 |
1975年 | 32篇 |
1974年 | 41篇 |
1973年 | 29篇 |
1972年 | 25篇 |
排序方式: 共有4720条查询结果,搜索用时 6 毫秒
951.
952.
953.
954.
955.
956.
Richard C. Tolman 《Journal of The Franklin Institute》1927,203(4):489-508
957.
958.
959.
Richard A. Brindle Clare E. Milner 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(2):235-244
AbstractInsufficient hip neuromuscular control may contribute to non-contact sport injuries. However, the current evaluative test of hip neuromuscular control, the single-leg squat, requires hip abductor muscle strength to complete. The purpose of this study was to develop the hip control test (HCT) and determine the test’s reliability and construct validity. Nineteen healthy adults visited the laboratory twice. The HCT is a 10-s test of reciprocal toe-tapping accuracy. Both automated and manual HCT ratings were recorded simultaneously during each visit. Additionally, eccentric hip abductor torque was measured. HCT reliability was assessed with intra-class correlation coefficients (ICC). Agreement between automated and manual ratings was determined with Bland–Altman plots. Construct validity was established if HCT performance significantly decreased with a secondary cognitive task (p < 0.05). Bivariate regression determined the relationship between HCT performance and eccentric hip abductor torque. Automated and manual HCT ratings both had moderate reliability (ICC = 0.72) and yielded similar results (limits of agreement = ?1 to 2 taps). The HCT had construct validity (p = 0.001), and no correlation with hip abductor muscle strength (r = 0.213). Thus, the HCT is a reliable and valid test. The HCT is simple to administer and measures hip neuromuscular control separately from strength. 相似文献
960.
Xiaoqian Richard Hu 《Sport in Society》2019,22(8):1362-1381
AbstractThis article presents a study of the rationale, particularly ideological factors, of a policy change, i.e. the termination of a ‘dual-registration policy’ of Chinese elite divers, through investigating the belief system of actors in the decision-making process and in its aftermath, which was the collapse of an effective elite diver development system. Besides policies documents and academic literature, research data are also collected through thirteen interviews. The analysis of data is conducted through employing Advocacy Coalition Framework (ACF) as the theory of the research. Through breaking down the belief system of different Advocacy Coalitions in the case, it is concluded that the policy change and the subsequent termination of the Tsinghua system could be recognized as natural consequences consistent with the belief and value of both Chinese elite sport and the Tsinghua university, and that structural elements are influential in shaping the belief system and the decision-making process. 相似文献