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   5583篇
  免费   436篇
  国内免费   3篇
教育   5059篇
科学研究   79篇
各国文化   135篇
体育   144篇
文化理论   19篇
信息传播   586篇
  2023年   11篇
  2022年   10篇
  2021年   62篇
  2020年   93篇
  2019年   189篇
  2018年   215篇
  2017年   259篇
  2016年   190篇
  2015年   230篇
  2014年   259篇
  2013年   1569篇
  2012年   200篇
  2011年   228篇
  2010年   216篇
  2009年   194篇
  2008年   218篇
  2007年   161篇
  2006年   149篇
  2005年   137篇
  2004年   120篇
  2003年   77篇
  2002年   96篇
  2001年   75篇
  2000年   74篇
  1999年   80篇
  1998年   49篇
  1997年   51篇
  1996年   66篇
  1995年   61篇
  1994年   49篇
  1993年   63篇
  1992年   47篇
  1991年   43篇
  1990年   58篇
  1989年   38篇
  1988年   45篇
  1987年   36篇
  1986年   36篇
  1985年   34篇
  1984年   22篇
  1983年   24篇
  1982年   24篇
  1981年   14篇
  1980年   15篇
  1978年   12篇
  1977年   14篇
  1976年   10篇
  1975年   9篇
  1974年   16篇
  1968年   8篇
排序方式: 共有6022条查询结果,搜索用时 93 毫秒
1.
The emerging creative practices of digital collections are increasing in prominence thanks to the access to, and appeal of, data visualizations. Interactive data visualizations, such as a map, timeline, chart, graph, or artist’s rendering of data, enable users to pursue their own research interests within a collection and participate in new areas of research. Use of these data visualizations enhances the scope of the collection and enables a modern and diverse thematic collection to emerge. This article considers the question: Does the addition of data visualizations affect how users participate with a research collection? Impacts on collection development, application of user-centered design, and analysis of users’ exploratory strategies are discussed. Examples of data visualizations used in digital humanities projects and digital collections are presented as case studies.  相似文献   
2.
3.
4.
The study examined the social‐information‐processing skills of kindergarten children with developmental learning disabilities (LD) utilizing Crick and Dodge's (1994) model of children's social adjustment as a theoretical framework. Participants consisted of 20 kindergarten children with developmental LD who attended three integrated kindergartens and 20 children without developmental LD from the same kindergartens. Participants were assessed on social‐information‐processing skills, feelings of loneliness, sense of coherence, and teachers' ratings of behavioral problems and positive resources. The results indicated that girls with developmental LD performed significantly lower on two information‐processing steps—the response decision and the enactment steps—than did girls without LD. Such differences were not found for boys. The results also showed that the social‐information‐processing skills of children with developmental LD were correlated with teachers' ratings.  相似文献   
5.
6.
Thepractice of evidence-based health care requires that information on methodology be identifiedfrom databases such as MEDLINE. Up until this year there have been no designated medicalsubject headings (MeSH) for evidence-based health care. ‘EVIDENCE-BASEDMEDICINE’ appears as a MeSH term from 1997. The absence of designated MeSH forthis concept prior to 1997 provides a challenge to the searcher. This paper describes the creationof a MEDLINE search strategy to retrieve articles on the methods of evidence-based health carepublished prior to the introduction of the new term, where an optimal combination of free-textand MeSH terms is required to identify relevant material. The study examines both free-text andsubject heading searching and attempts an optimal balance of sensitivity and specificity. It beginsby examining separate free-text and subject heading searches. Sensitivity of the subject headingsearch was 33% and specificity 80%, while the free-text search produced asensitivity of 50% and a specificity of 67%. The final strategy, combining bothapproaches, was more successful with sensitivity reaching between 82 and 90% andspecificity 83%. It is therefore possible to devise a search strategy to retrieve articles on themethods of evidence-based health care with relatively successful rates of sensitivity andspecificity. The limitations of MEDLINE, however, necessitate the use of additional approachesin identifying articles on the methods of evidence-based health care.  相似文献   
7.
8.
9.
Review article     
Ducellier, A., Kaplan, M., Martin, Bernadette, avec la collaboration de Françoise Micheau. Le Moyen Âge en Orient. Byzance et l'Islam. Des Barbares aux Ottomans. Paris: Hachette Histoire Université, 1990.  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