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   738篇
  免费   17篇
教育   560篇
科学研究   36篇
各国文化   28篇
体育   66篇
综合类   1篇
文化理论   3篇
信息传播   61篇
  2023年   5篇
  2022年   12篇
  2021年   8篇
  2020年   19篇
  2019年   30篇
  2018年   40篇
  2017年   33篇
  2016年   39篇
  2015年   18篇
  2014年   24篇
  2013年   134篇
  2012年   13篇
  2011年   22篇
  2010年   18篇
  2009年   20篇
  2008年   22篇
  2007年   22篇
  2006年   17篇
  2005年   16篇
  2004年   14篇
  2003年   15篇
  2002年   11篇
  2001年   5篇
  2000年   14篇
  1999年   13篇
  1998年   10篇
  1997年   8篇
  1996年   6篇
  1995年   5篇
  1993年   13篇
  1992年   7篇
  1991年   5篇
  1990年   8篇
  1989年   6篇
  1988年   4篇
  1987年   4篇
  1985年   9篇
  1984年   6篇
  1983年   3篇
  1982年   6篇
  1980年   6篇
  1979年   6篇
  1978年   4篇
  1977年   8篇
  1976年   6篇
  1975年   5篇
  1974年   4篇
  1973年   4篇
  1971年   3篇
  1929年   3篇
排序方式: 共有755条查询结果,搜索用时 343 毫秒
31.
32.
33.
There is a widespread view held by health clinicians that their work effectiveness is impaired by 'information overload.' Building upon a previous work by Wilson, a review of the literature was undertaken to look for the evidence of this. It was found that the literature, particularly in the context of the clinical environment, was limited. This review explores the diverse overarching theories of information overload, effects of the phenomenon that are perceived to occur and proposed solutions to this problem. Many of the papers noted an information explosion but only three authors explicitly attempted to measure both the quantity and the complexity of this information. It was also found that the typology of the information studied was severely limited with most studies exploring information such as guidelines, access to journals, research findings and other knowledge intensive areas. Solutions proposed seem to concentrate on technological means rather than exploring the use of humans either in management of information or as a step in the filtering process.  相似文献   
34.
This study examined the motivational profiles of elite youth athletes to determine whether individual differences in goal orientation corresponded with differential levels of imagery use. Two hundred ninety male (n = 88) and female (n = 202) young athletes (M = 16.6 years, SD = 1.48) completed the Perceptions of Success Questionnaire (POSQ, Roberts, Treasure, & Balague, 1998) to assess dispositional goal orientations and the Sport Imagery Questionnaire (Hall, Mack, Paivio, & Hausenblas, 1998) to assess frequency and function of imagery use. A two-stage cluster analysis on the POSQ scores revealed a three-cluster solution with a multivariate analysis of variance indicating significant differences among cluster groups in imagery use. Athletes in Cluster 3 (higher task/higher ego) used significantly more imagery, regardless of the function than athletes in Cluster 1 (lower task/moderate ego) or Cluster 2 (moderate task/lower ego). These findings are discussed with reference to the role of achievement motivation in influencing young athletes' behavioral investments in mental strategies.  相似文献   
35.
The librarians at four hospital libraries describe the electronic reference service, "Ask A Librarian," offered at their institutions. The hospitals are vastly different in size and in number of library staff, and offer the "Ask A Librarian" service to different clientele. The article illustrates that both large hospitals with a large library staff and small hospitals with a solo librarian and some volunteers can offer this type of service.  相似文献   
36.
37.
38.
39.
To determine the nature and extent of the emerging field of “health law” scholarship in China, we retrieved 2956 publications about various aspects of health law published up through 2014 in 268 journals from the “Chinese Social Science Citation Index” and from the list of Chinese “Core Journals” maintained by the Peking University Library. By bibliometric analysis, we observed some interesting results which were different from our expectations. The collaboration network among Chinese health law (CHL) authors was relatively small, loose, unstable and early in its development. Kan Tian and Lixin Yang were leading authors, Renmin University of China was the primary institution, and Beijing was the predominant region studying Chinese health law (CHL). Kan Tian ranked 1st in the collaboration network and Lixin Yang published the most number of articles on CHL. Comprehensive universities made up the majority of institutions studying CHL, while medical colleges did not focus on health law research, possibly due to medical schools focusing mainly on clinical education and not attaching as much importance to social and humanistic aspects of medicine. Food safety, health administration, and the general principles of civil law were the main areas of focus in CHL research, which is basically in line with what we expected.  相似文献   
40.
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