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   3627篇
  免费   61篇
  国内免费   1篇
教育   2819篇
科学研究   143篇
各国文化   46篇
体育   225篇
文化理论   37篇
信息传播   419篇
  2022年   21篇
  2021年   26篇
  2020年   47篇
  2019年   92篇
  2018年   105篇
  2017年   128篇
  2016年   115篇
  2015年   78篇
  2014年   119篇
  2013年   854篇
  2012年   97篇
  2011年   98篇
  2010年   79篇
  2009年   82篇
  2008年   93篇
  2007年   90篇
  2006年   76篇
  2005年   76篇
  2004年   75篇
  2003年   76篇
  2002年   78篇
  2001年   80篇
  2000年   83篇
  1999年   58篇
  1998年   39篇
  1997年   30篇
  1996年   29篇
  1995年   42篇
  1994年   45篇
  1993年   50篇
  1992年   45篇
  1991年   47篇
  1990年   50篇
  1989年   33篇
  1988年   32篇
  1987年   41篇
  1986年   31篇
  1985年   37篇
  1984年   25篇
  1983年   25篇
  1982年   26篇
  1981年   33篇
  1980年   25篇
  1979年   33篇
  1978年   32篇
  1977年   19篇
  1976年   23篇
  1975年   13篇
  1974年   11篇
  1968年   10篇
排序方式: 共有3689条查询结果,搜索用时 15 毫秒
11.
12.
Collaboration in research activity is now the rule not the exception. It is encouraged by government, funding bodies and research councils. However, the concept of collaboration is difficult to define. It occurs at many different levels, driven by a complex research system-policy dynamic. Three different models of collaboration – inter-personal, team and corporate – are identified, each with their own rationale, structure, benefits and costs. The paper examines the institutional implications of these models. It argues that institutions and individual researchers conceptualise and operationalise research collaboration in different ways. Although vital to institutional mission, collaborative research is rarely mapped by senior managers with any precision. In general, institutional approaches to the management of collaborative research lag behind the policy rhetoric. The paper concludes with an overview of the key dilemmas for institutional strategists and policy makers posed by the shift towards more collaborative approaches to research.  相似文献   
13.
The Journal Citation Reports as a deselection tool   总被引:1,自引:0,他引:1  
  相似文献   
14.
15.
16.
17.
18.
This investigation identifies demographic, media, and social correlates of verbally aggressive communication in adolescence. Mail surveys were completed and returned by 2,300 adolescents between the ages of 13 and 15. These adolescents were asked about the prevalence of verbal and physical aggression, the context in which it occurred, demographics, and the interpersonal and media influences in their lives. The results indicate that verbal aggression is widespread, that committing and experiencing verbal aggression is largely reciprocal, that there is a strong relationship between committing verbal and physical aggression, and that peer social influence and listening to violently oriented music are mildly related to verbal aggression in adolescents. These findings suggest more resources should be allocated to teaching adolescents to understand and control verbal aggression. Further, they provide important answers to many prevention and intervention programmatic questions, including context, content, and targeting concerns. Since the negative consequences of verbal aggression are severe and long lasting, decreasing this destructive communication behavior should significantly improve the lives of many adolescents. These and other practical implications are expanded upon and discussed.  相似文献   
19.
The roles of academic health sciences librarians are continually evolving as librarians initiate new programs and services in response to developments in computer technology and user demands. However, statistics currently collected by libraries do not accurately reflect or measure these new roles. It is essential for librarians to document, measure, and evaluate these new activities to continue to meet the needs of users and to ensure the viability of their professional role. To determine what new measures should be compiled, the authors examined current statistics, user demands, professional literature, and current activities of librarians as reported in abstracts of poster sessions at Medical Library Association annual meetings. Three new categories of services to be measured are proposed. The first, consultation, groups activities such as quality filtering and individual point-of-need instruction. The second, outreach, includes activities such as working as liaisons, participating in grand rounds or morning report, and providing continuing education. The third area, Web authoring, encompasses activities such as designing Web pages, creating online tutorials, and developing new products. Adding these three measures to those already being collected will provide a more accurate and complete depiction of the services offered by academic health sciences librarians.  相似文献   
20.
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