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   1095篇
  免费   20篇
  国内免费   3篇
教育   773篇
科学研究   82篇
各国文化   21篇
体育   90篇
综合类   2篇
文化理论   10篇
信息传播   140篇
  2023年   12篇
  2022年   15篇
  2021年   19篇
  2020年   40篇
  2019年   61篇
  2018年   61篇
  2017年   75篇
  2016年   62篇
  2015年   45篇
  2014年   54篇
  2013年   204篇
  2012年   49篇
  2011年   49篇
  2010年   29篇
  2009年   26篇
  2008年   29篇
  2007年   24篇
  2006年   21篇
  2005年   20篇
  2004年   5篇
  2003年   11篇
  2002年   13篇
  2001年   8篇
  2000年   14篇
  1999年   10篇
  1998年   5篇
  1997年   8篇
  1996年   10篇
  1995年   5篇
  1994年   6篇
  1993年   9篇
  1992年   6篇
  1991年   10篇
  1990年   12篇
  1989年   8篇
  1988年   8篇
  1987年   3篇
  1985年   3篇
  1984年   3篇
  1983年   4篇
  1982年   3篇
  1981年   4篇
  1979年   5篇
  1978年   5篇
  1976年   7篇
  1973年   3篇
  1969年   3篇
  1860年   3篇
  1859年   4篇
  1826年   2篇
排序方式: 共有1118条查询结果,搜索用时 0 毫秒
91.
92.
93.
94.
95.
96.
97.
98.
A comprehensive needs assessment was conducted at ATA hospital to determine the root causes of a high number of errant radiology orders from requesting physicians. The Human Performance Technology Model, Gilbert's Behavior Engineering Model, and Rummler and Brache's Nine Performance Variables Model guided the needs assessment process. Three solutions were proposed. The development of the long‐term solution, a software utility, has been initiated. The Behavior Engineering Model was used to identify possible solutions to post‐training performance gaps identified during the evaluation.  相似文献   
99.
Many of the socio-cultural lifestyle and dietary changes that take place during Ramadan may affect the risk of injury in athletes, but little evidence is available. The aim of the present study was to examine the effects over two consecutive years of the holy month of Ramadan on injury rates in 42 professional players of a Tunisian top-level professional soccer team. Players were retrospectively organized into fasting and non-fasting groups and monitored for 3 months: 4 weeks before Ramadan, during the month of Ramadan (4 weeks), and 4 weeks after Ramadan each year. During Ramadan, training started at 22.00 h. The circumstances (training/match) and mechanism of injury (traumatic/overuse) were recorded. No significant differences between the three periods were observed for weekly mean training load, training strain, training duration, and Hooper's Index (quality of sleep, and quantities of stress, delayed-onset muscle soreness, and fatigue). Compared with non-fasting players, fasters had a lower (P < 0.05) Hooper's Index and stress during and after Ramadan. No significant difference in injury rates was observed between fasting and non-fasting players. Nevertheless, the rates of non-contact (6.8 vs. 0.6 and 1.1) and training overuse (5.6 vs. 0.6 and 0.5) injuries were significantly higher in fasting players during the month of Ramadan than before or after Ramadan. In conclusion, Ramadan, along with the corresponding changes in nutritional habits, sleeping schedule, and socio-cultural and religious events, significantly increased overuse and non-contact injuries in fasting players despite the fact that the training load, strain, and duration were maintained.  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