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   85篇
  免费   1篇
教育   16篇
科学研究   55篇
体育   5篇
文化理论   6篇
信息传播   4篇
  2022年   4篇
  2021年   1篇
  2020年   2篇
  2019年   6篇
  2018年   7篇
  2017年   5篇
  2016年   7篇
  2015年   6篇
  2014年   3篇
  2013年   6篇
  2012年   8篇
  2011年   2篇
  2010年   3篇
  2009年   2篇
  2008年   3篇
  2007年   3篇
  2006年   4篇
  2005年   5篇
  2004年   1篇
  2002年   2篇
  2001年   2篇
  1999年   1篇
  1998年   1篇
  1996年   1篇
  1993年   1篇
排序方式: 共有86条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
Information plays a major role in any moral action. ICT (Information and Communication Technologies) have revolutionized the life of information, from its production and management to its consumption, thus deeply affecting our moral lives. Amid the many issues they have raised, a very serious one, discussed in this paper, is labelled the tragedy of the Good Will. This is represented by the increasing pressure that ICT and their deluge of information are putting on any agent who would like to act morally, when informed about actual or potential evils, but who also lacks the resources to do much about them. In the paper, it is argued that the tragedy may be at least mitigated, if not solved, by seeking to re-establish some equilibrium, through ICT themselves, between what agents know about the world and what they can do to improve it.  相似文献   
5.
6.
7.
8.
9.
Lacrosse requires the coordinated performance of many complex skills. One of these skills is shooting on the opponents’ net using one of three techniques: overhand, sidearm or underhand. The purpose of this study was to (i) determine which technique generated the highest ball velocity and greatest shot accuracy and (ii) identify kinematic and kinetic variables that contribute to a high velocity and high accuracy shot. Twelve elite male lacrosse players participated in this study. Kinematic data were sampled at 250 Hz, while two-dimensional force plates collected ground reaction force data (1000 Hz). Statistical analysis showed significantly greater ball velocity for the sidearm technique than overhand (< 0.001) and underhand (< 0.001) techniques. No statistical difference was found for shot accuracy (P > 0.05). Kinematic and kinetic variables were not significantly correlated to shot accuracy or velocity across all shot types; however, when analysed independently, the lead foot horizontal impulse showed a negative correlation with underhand ball velocity (= 0.042). This study identifies the technique with the highest ball velocity, defines kinematic and kinetic predictors related to ball velocity and provides information to coaches and athletes concerned with improving lacrosse shot performance.  相似文献   
10.
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