全文获取类型
收费全文 | 2576篇 |
免费 | 65篇 |
国内免费 | 4篇 |
专业分类
教育 | 1918篇 |
科学研究 | 127篇 |
各国文化 | 62篇 |
体育 | 266篇 |
综合类 | 1篇 |
文化理论 | 28篇 |
信息传播 | 243篇 |
出版年
2022年 | 14篇 |
2021年 | 23篇 |
2020年 | 52篇 |
2019年 | 66篇 |
2018年 | 99篇 |
2017年 | 108篇 |
2016年 | 97篇 |
2015年 | 60篇 |
2014年 | 94篇 |
2013年 | 575篇 |
2012年 | 82篇 |
2011年 | 77篇 |
2010年 | 66篇 |
2009年 | 72篇 |
2008年 | 90篇 |
2007年 | 66篇 |
2006年 | 72篇 |
2005年 | 65篇 |
2004年 | 47篇 |
2003年 | 68篇 |
2002年 | 66篇 |
2001年 | 44篇 |
2000年 | 33篇 |
1999年 | 36篇 |
1998年 | 23篇 |
1997年 | 37篇 |
1996年 | 35篇 |
1995年 | 38篇 |
1994年 | 19篇 |
1993年 | 22篇 |
1992年 | 24篇 |
1991年 | 31篇 |
1990年 | 20篇 |
1989年 | 25篇 |
1988年 | 20篇 |
1987年 | 13篇 |
1986年 | 27篇 |
1985年 | 17篇 |
1984年 | 18篇 |
1983年 | 22篇 |
1982年 | 25篇 |
1981年 | 18篇 |
1980年 | 9篇 |
1979年 | 23篇 |
1978年 | 9篇 |
1977年 | 14篇 |
1976年 | 12篇 |
1974年 | 7篇 |
1972年 | 6篇 |
1967年 | 5篇 |
排序方式: 共有2645条查询结果,搜索用时 15 毫秒
111.
112.
Research training takes many forms and is generally a part of graduate education. A common and important aspect of research training is the introductory research methods class offered by many departments. The purpose of this study was to examine the content, process, and instructors of introductory research methods classes in departments of kinesiology and physical education in the United States. A survey was designed and extensively pilot tested. The sample was selected from all departments offering graduate degrees in the United States. Among the many results, the data indicate that one book was required reading in more than half the classes and class size averaged about 19 students. A number of objectives were statedfor most classes, with understanding research, applying research to professional situations, critiquing the research literature, and planning research indicated most often. Quantitative design and analysis topics were emphasized more strongly than qualitative design and analysis topics. Professors indicated that more than half the class time was spent lecturing and most grades were based on exams, preparation of a research proposal, and regular assignments. The professors were relatively experienced, had a variety ofspecialty areas, and were reasonably productive researchers. The trends suggest that alternative research methodologies have not been quickly added to the research methods curriculum. 相似文献
113.
Halverson, Roberton, and Langendorfer (1982) reported the development of children ages 6-13 years filmed longitudinally performing the forceful overarm throw. These authors described the children's progress through developmental sequences for trunk, humerus, and forearm actions; however, they did not study developmental relationships ("profiles") across these components. This paper reports how the profiles changed in the same children across trials within filming sessions and over time. The data revealed both common and individual developmental pathways. The frequencies of some pathways were not chance occurrences (p < or = .01), suggesting that within-person constraints eliminated certain movement relationships while encouraging others. The authors hypothesize that the kinematics of trunk rotation may serve as a control parameter for pattern change. 相似文献
114.
Interaction of wrestling shoe and competition surface: effects on coefficient of friction with implications for injury 总被引:1,自引:0,他引:1
Newton R Doan B Meese M Conroy B Black K Sebstianelli W Kramer W 《Sports biomechanics / International Society of Biomechanics in Sports》2002,1(2):157-166
The purpose of this study was to determine whether there is a significant difference in the co-efficient of friction (Fc) between old versus new wrestling shoes and mats and to investigate the effect of perspiration. Fc was measured by dragging a weighted shoe over a wrestling mat surface and measuring the vertical and horizontal forces produced. Three different shoe conditions were assessed over two mat types for both wet and dry conditions for a total of 12 conditions. To simulate the wet condition, saline solution was smeared over the surface of the mat. There was a significant effect of shoe, mat, and wet/dry conditions. In addition, significant interactions of shoe by mat, shoe by dry/wet, and mat by dry/wet were observed. Overall, Fc was 36% higher for the new wrestling mat compared to the old wrestling mat. Application of the saline solution reduced Fc by 14% compared to the dry condition. Comparison of the mean Fc for all three shoe types revealed the Fc for the older design shoe was 23% to 28% lower than the brand new shoe and the worn newer design, respectively. A high Fc, such as in the new mat/new shoe combination, has the potential to increase the risk of knee and ankle injuries by fixing the foot more securely to the ground. 相似文献
115.
Mechanisms of attentional cueing during observational learning to facilitate motor skill acquisition
We examined the effectiveness of different cueing conditions during observational learning of a soccer accuracy pass. Sixty participants (30 males, 30 females) were randomly assigned and stratified by sex into one of six groups: discovery learning, verbal instruction, video model with visual cues, video model with verbal cues, video model with visual and verbal cues, and video model only. Each participant completed eight blocks of 10 trials each, with trial blocks 1 and 2 representing the practice phase (no manipulation), trial blocks 3, 4, 5 and 6 the acquisition phase (manipulation administered) and trial blocks 7 and 8 the retention phase (24 h after acquisition, with no manipulation). Absolute error, variable error and kicking form were recorded. The results indicated that those who used video modelling with visual and verbal cues collectively displayed less error and more appropriate form across acquisition and retention trial blocks compared with other groups. Our findings suggest that verbal information in addition to visual cues enhances perceptual representation and retention of modelled activities to improve task reproduction capabilities. Future research directions are proposed with implications for both direct and indirect perception accounts of skill acquisition through observed behaviours. 相似文献
116.
117.
118.
119.
120.
Will our teacher certification testing program stand up to a court challenge? What are the critical issues the courts consider in examining teacher certification testing? What do we need to do to strengthen our program legally and psychometrically? 相似文献