首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   25508篇
  免费   311篇
  国内免费   15篇
教育   18349篇
科学研究   1965篇
各国文化   278篇
体育   2372篇
综合类   9篇
文化理论   216篇
信息传播   2645篇
  2021年   266篇
  2020年   393篇
  2019年   606篇
  2018年   801篇
  2017年   753篇
  2016年   732篇
  2015年   443篇
  2014年   599篇
  2013年   4665篇
  2012年   532篇
  2011年   588篇
  2010年   456篇
  2009年   498篇
  2008年   525篇
  2007年   497篇
  2006年   460篇
  2005年   400篇
  2004年   452篇
  2003年   354篇
  2002年   366篇
  2001年   484篇
  2000年   541篇
  1999年   482篇
  1998年   279篇
  1997年   285篇
  1996年   336篇
  1995年   275篇
  1994年   280篇
  1993年   246篇
  1992年   367篇
  1991年   383篇
  1990年   360篇
  1989年   380篇
  1988年   353篇
  1987年   338篇
  1986年   335篇
  1985年   391篇
  1984年   312篇
  1983年   323篇
  1982年   250篇
  1981年   258篇
  1980年   265篇
  1979年   356篇
  1978年   264篇
  1977年   244篇
  1976年   205篇
  1975年   185篇
  1974年   186篇
  1973年   181篇
  1971年   179篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
971.
Contemporary aspects of research methods in sport and exercise psychology are discussed in this wide-ranging review. After an introduction centred on trends in sport and exercise psychology methods, the review is organized around the major themes of quantitative and qualitative research. Our aim is to highlight areas that may be problematic or controversial (e.g. stepwise statistical procedures), underused (e.g. discriminant analysis), increasingly used (e.g. meta-analysis, structural equation modelling, qualitative content analysis) and emergent (e.g. realist tales of writing). Perspectives range from the technical and speculative to the controversial and critical. While deliberately not providing a 'cookbook' approach to research methods, we hope to provide enough material to help researchers to appreciate the diversity of potential methods and to adopt a more critical perspective in their own research consumption and production.  相似文献   
972.
The aim of this study was to assess the influence of three imposed crank rates on the attainment of peak oxygen consumption (VO2peak) and other physiological responses during incremental arm crank ergometry. Twenty physically active, although non-specifically trained, males volunteered for the study. They completed an exercise protocol using an electrically braked arm ergometer (Lode Angio, Groningen, Netherlands) at crank rates of 60, 70 and 80 rev x min(-1). The order of tests was randomized and they were separated by at least 2 days. Peak VO2 was significantly higher (P < 0.05) at 70 and 80 rev x min(-1) than at 60 rev x min(-1). Peak ventilation volume increased as a function of crank rate and was higher (P < 0.05) at 80 than at 60 rev x min(-1). Peak heart rate was higher (P < 0.05) at 70 and 80 rev x min(-1) than at 60 rev x min(-1). Furthermore, 70 and 80 rev x min(-1) resulted in an extended test time compared with 60 rev x min(-1). The greater physiological responses observed during the tests at the two faster crank rates might have been the result of a postponement of acute localized neuromuscular fatigue, allowing for more work to be completed. We recommend, therefore, that an imposed crank rate between 70 and 80 rev x min(-1) should be used to elicit VO2peak and other physiological responses in arm crank ergometry.  相似文献   
973.
This article, based on archival records, published documents, interviews with elite sportswomen and three regional case studies, deals with the radical social, economic, cultural and political changes in the early years of the Communist China, the consequent changes in women's lives and the eventual extraordinary impact on elite women's sport. It analyses the complicated relations between the communist system, gender ideology, sports policy, international politics and elite women's sport. With the establishment of a variety of sports institutions, systems and structures women in increasing numbers took part in competitive sport and produced even increasingly remarkable achievements.  相似文献   
974.
Mick E  Biederman J  Faraone SV 《Journal of learning disabilities》2000,33(4):314; author reply 314-314; author reply 316
  相似文献   
975.
976.
In 1998 Thomas Jefferson University offered its first entirely online course. Librarians and library staff were integral in the development, support, evaluation, and refinement of this course. While staff members may have taken non-traditional roles in this effort, their roles generally fell within the broad guidelines of assisting University faculty with information and knowledge management. The development and support of distance course offerings will continue to be a focus at Scott Memorial Library.  相似文献   
977.
978.
This study was designed to assess the effect of performance feedback on stress reactivity after recovery from maximal exercise. Forty competitive athletes were recruited to complete a maximal exercise test. Performance feedback was manipulated after the exercise test to give four groups: (1) high performance, (2) low performance, (3) accurate feedback and (4) no exercise control. Cardiovascular reactivity was assessed during psychological stress. The results indicate that accurate feedback participants experienced lower relative reactivity to stress (lower mean arterial pressure) than their no-exercise counterparts. These results demonstrate that the stress-buffering effect of exercise extends to maximal exercise. In addition, high-performance participants experienced lower relative reactivity than low-performance participants. Thus, low-performance feedback was sufficient to remove the buffering effect of exercise. There were no differences between the high-performance and accurate feedback conditions, or between the low-performance and control conditions.  相似文献   
979.
980.
There is little research on students' engagement in physical activity in middle school physical education (PE). We observed student activity, lesson context, and teacher behavior in 430 PE lessons taught by 126 teachers in 24 schools. Variables were analyzed by mixed-model nested analyses of covariance. Boys were more active than girls overall and during skill drills, game play, and free play. Student activity varied by lesson context, with fitness activities producing the most activity. Class size was negatively associated with student activity. Daily PE contributed a weekly total of 25 min of vigorous activity and 83 min of moderate-to-vigorous activity--much less than national objectives. Results suggest that numerous opportunities exist for increasing student physical activity during middle school PE.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号