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   353篇
  免费   3篇
  国内免费   1篇
教育   247篇
科学研究   27篇
各国文化   1篇
体育   67篇
信息传播   15篇
  2022年   3篇
  2020年   5篇
  2019年   11篇
  2018年   15篇
  2017年   14篇
  2016年   11篇
  2015年   3篇
  2014年   8篇
  2013年   92篇
  2012年   6篇
  2011年   5篇
  2010年   6篇
  2009年   6篇
  2008年   6篇
  2007年   7篇
  2006年   7篇
  2005年   10篇
  2004年   7篇
  2003年   9篇
  2002年   10篇
  2001年   5篇
  2000年   10篇
  1999年   5篇
  1996年   5篇
  1995年   2篇
  1994年   8篇
  1992年   9篇
  1990年   4篇
  1989年   3篇
  1988年   3篇
  1987年   2篇
  1986年   3篇
  1985年   4篇
  1982年   4篇
  1981年   3篇
  1980年   6篇
  1979年   3篇
  1977年   3篇
  1976年   3篇
  1975年   2篇
  1973年   3篇
  1971年   4篇
  1968年   1篇
  1939年   1篇
  1933年   1篇
  1925年   1篇
  1924年   3篇
  1923年   2篇
  1921年   3篇
  1919年   1篇
排序方式: 共有357条查询结果,搜索用时 15 毫秒
91.
92.
93.
The 14th running of the UEFA European Championships represented a watershed moment for football, and sport more broadly, in Eastern Europe. Whilst the competition itself might have been restricted to Europe’s elite national teams, world football’s gaze was drawn towards the joint hosts, Poland and the Ukraine, for the duration of the tournament. At this juncture, therefore, this paper seeks to consider the ‘place’ of football in Eastern Europe, and in this case, Poland specifically, by conducting an analysis of the economic value of Poland’s top division – the Ekstraklasa, and by examining the factors that influence foreign players’ decisions to migrate to that particular league. The paper identifies that whilst the Ekstraklasa might sit outside of Europe’s core football economies, it still offers much as a migration destination for certain sorts of players. However, the paper also shows that whilst the 2012 UEFA European Championships provided significant exposure for Poland in the football context, it is less clear if hosting the event will have a lasting effect on the development of Poland’s top league and its desirability to foreign players.  相似文献   
94.
95.
This study sought to assess the role of ethnicity in both initial choice of, and persistence in, science majors. Standardized test scores, high school records, initial concentration preference, college grades, and final majors of all the white, Asian, black, and Hispanic students who enrolled in 1988 at four highly selective institutions provided the database. Despite relative deficits in scores on measures of preparation and developed ability, blacks entered college with a strong interest in majoring in science. Black students interested in science also suffered the highest attrition from it; Asians were lowest, with whites and Hispanics near the average attrition of 40%. Ethnicity did not add significantly to ability and achievement variables in predicting attrition from science. The results are discussed in terms of two main issues: first, the effect of different standards of selection for the various groups on their success in science curricula; and second, the relevance of various well-known intervention strategies to the problems of minority attrition in science in highly selective institutions.  相似文献   
96.
97.
This article defends an approach to the clarification of values by schools which involves ‘reflexive evaluative enquiry or action research’ rather than an abstract or ‘armchair’ approach. An analysis is offered of the implications for this activity of the context of ‘market choice’ in which it must now be undertaken.  相似文献   
98.
99.
Fine body movements and the cardiac cycle in archery   总被引:3,自引:1,他引:2  
This study examined the relationships between postural sway, aiming time, the cardiac cycle time and the placement of the first finger movement within the electrocardiac cycle, with the quality of the arrow shot. A small group of elite male and female archers who shot either the recurve or the compound bow, freestyle or bare bow was used in this study. A total of 240 arrows were shot, classified as being of good, average or bad quality and analysed in detail. The analyses were undertaken over two occasions up to 100 days apart. The area of postural sway, as measured by the movement of the centre of pressure coordinates, varied significantly (P less than 0.05-0.001) both within and between trials for all archers and for all quality of arrows shot. There was a tendency for the area of postural sway to increase as the quality of the arrow shot decreased. This increase in postural sway exceeded, for arrows of bad quality, that exhibited as normal postural sway when standing relaxed and addressing the target with the hands at the side. Aiming time was variable within the quality of arrow shot, although it was consistent for each archer. In some cases the aiming time increased as the quality of the arrow decreased, whereas in the case of bare bow archery the aiming time tended to decrease as the quality of the arrow deteriorated. The cardiac cycle time increased significantly (P less than 0.05-0.01) as the archers approached the loose of the good quality arrows but there was no significant increase in cardiac cycle time when arrows of average or bad quality were shot. The most consistent parameter related to the quality of the shot was the placement of the first finger movement within the ST phase or the mid-cycle phase of the electrocardiogram for arrows of good quality (P less than 0.0001).  相似文献   
100.
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