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   3120篇
  免费   54篇
  国内免费   1篇
教育   2575篇
科学研究   44篇
各国文化   34篇
体育   121篇
综合类   1篇
文化理论   19篇
信息传播   381篇
  2023年   8篇
  2022年   19篇
  2021年   31篇
  2020年   49篇
  2019年   82篇
  2018年   123篇
  2017年   129篇
  2016年   123篇
  2015年   68篇
  2014年   111篇
  2013年   680篇
  2012年   105篇
  2011年   117篇
  2010年   98篇
  2009年   104篇
  2008年   107篇
  2007年   99篇
  2006年   82篇
  2005年   82篇
  2004年   87篇
  2003年   61篇
  2002年   61篇
  2001年   56篇
  2000年   48篇
  1999年   30篇
  1998年   35篇
  1997年   36篇
  1996年   31篇
  1995年   43篇
  1994年   42篇
  1993年   50篇
  1992年   30篇
  1991年   27篇
  1990年   42篇
  1989年   31篇
  1988年   29篇
  1987年   24篇
  1986年   21篇
  1985年   15篇
  1984年   13篇
  1983年   14篇
  1982年   13篇
  1981年   12篇
  1980年   16篇
  1979年   20篇
  1978年   14篇
  1977年   12篇
  1976年   10篇
  1974年   8篇
  1973年   7篇
排序方式: 共有3175条查询结果,搜索用时 15 毫秒
131.
132.
133.
134.
The librarians of the Health Sciences Library worked with the director of the Primary Care Clerkship to reinforce the principles of Evidence-Based Medicine (EBM) searching, taught during the first two years of medical school, through an intensive workshop. The purpose of the program was to ensure that students apply EBM principles in a timely and effective manner in clinical situations. Working in teams led by a resident and librarian, students researched real cases and then evaluated the effectiveness of their approach to the problems. This paper outlines the rationale for the team approach, reviews the administration of a computer-based workshop, and discusses the evaluation process. Evaluation focused on both the current workshop and its implications for the informatics program presented to students during years one and two.  相似文献   
135.
136.
Book reviews     
Authors and Electronic Publishing, a report produced by Alma Swan and Sheridan Brown, Key Perspectives Ltd Association of Learned and Professional Society Publishers (ALPSP) 2002. Members, £50 (US$100); Non-members £100 (US$200). ISBN 090734123-3 My Life in Science by Sydney Brenner BioMed Central Ltd, 2001; rev. edn including personal photos, 2002. Pp. 199. Paper, £14.99 recommended retail price; £10.49 for BioMed Central users ( www.biomedcentral.com/info/brenner.asp ). ISBN: 0-9540278-0-9 Understanding Copyright… in a Week by Graham P. Cornish Institute of Management, published by Hodder & Stoughton, 2000. £6.99. ISBN 0-340-78241-2 Towards Consensus on the Electronic Use of Publications in Libraries – Strategy Issues and Recommendations by Thomas Dreier Gottinger Bibliotheksschriften, 2001. Pp. 120. Paperback. Available at: http://gdz.sub.uni-goettingen.de/tecup/towacons.pdf . ISBN 3-930457-16-4. ISSN: 0943-951X  相似文献   
137.
This research examined varying levels of physical activity and psychomotor and physiological function in variously active older men. Very active moderately active, and low active participants were tested on simple (SRT) and choice reaction time (CRT), coincidence-anticipation timing (CAT), and VO2max. No significant differences for age or height were found, although percentage of fat, and weight were statistically different. Active groups were leaner and lighter. VO2max was significantly different between groups, as physically active groups yielded geater values. SRT and CAT also yielded significantly different results with more active participants showing better performance. No between-groups significant differences resulted for CRT. Generally, increased levels of physical activity were related to superior physiological outcomes and improved psychomotor peformance.  相似文献   
138.
This article is an edited and condensed version of the report of a study carried out under the auspices of the Joint Information Systems Committee (JISC) and the Publishers Association (PA). It develops the conclusions of an earlier analysis (Bide, Oppenheim & Ramsden, 1997) and builds upon discussions between representatives of JISC and the PA held in the summer of 1997. The full report is available on the UKOLN server at www.ukoln.ac.uk/services/elib/papers/pa/charging/  相似文献   
139.
140.
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