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   15143篇
  免费   160篇
  国内免费   23篇
教育   10634篇
科学研究   1391篇
各国文化   211篇
体育   1362篇
综合类   12篇
文化理论   154篇
信息传播   1562篇
  2021年   106篇
  2020年   176篇
  2019年   281篇
  2018年   348篇
  2017年   418篇
  2016年   363篇
  2015年   251篇
  2014年   331篇
  2013年   3145篇
  2012年   317篇
  2011年   304篇
  2010年   264篇
  2009年   275篇
  2008年   316篇
  2007年   325篇
  2006年   282篇
  2005年   260篇
  2004年   252篇
  2003年   269篇
  2002年   237篇
  2001年   221篇
  2000年   237篇
  1999年   212篇
  1998年   137篇
  1997年   145篇
  1996年   181篇
  1995年   144篇
  1994年   173篇
  1993年   157篇
  1992年   223篇
  1991年   223篇
  1990年   216篇
  1989年   213篇
  1988年   183篇
  1987年   177篇
  1986年   206篇
  1985年   189篇
  1984年   169篇
  1983年   209篇
  1982年   176篇
  1981年   165篇
  1980年   159篇
  1979年   223篇
  1978年   187篇
  1977年   169篇
  1976年   152篇
  1975年   126篇
  1974年   120篇
  1973年   104篇
  1972年   107篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
PUBLIC AND ELITE ATTITUDES TO ENVIRONMENTAL ISSUES   总被引:1,自引:0,他引:1  
This paper puts the environment into perspective. Politiciansand commentators see the environment as yesterday's issue, forgettingthat the core of environmental activists is still double thelevel of just five years ago. International comparisons stretchingfrom Poland to New Zealand are made, examining the public'senvironmental behavior, attitudes and values. Using Great Britainas a case study, detailed comparisons are made between the attitudesof the general public with journalists, the financial community,captains of industry, and Members of Parliament and the latterthen compared with Members of the European Parliament. The publicis demanding action by companies and by governments on environmentalissues and has little faith in either to take corrective action.  相似文献   
33.
34.
35.
Jenny Morris, freelance researcher, David Abbott, research associate at the Norah Fry Research Centre at the University of Bristol, and Linda Ward, Director of the Norah Fry Research Centre at the University of Bristol, carried out research to look at whether the current system of legislation and regulation is adequately protecting and promoting the interests of disabled children placed at residential schools. This article summarises some findings from the research which investigated the decision-making processes leading to residential special school placements and explored the involvement of education and social services authorities after placements have been made. The research found that the needs of individual children are not central to these decision-making processes; and that the local authorities who make such placements do not pay sufficient attention to protecting and promoting children's educational or care needs once they have gone away to school. Jenny Morris, David Abbott and Linda Ward indicate some of the ways in which current practice could be improved; make recommendations for future developments; and call for further research into the role of special residential schools in the context of policy on educational and social inclusion.  相似文献   
36.
37.
38.
39.
40.
This paper examines end-user, online searching using data from a questionnaire mailed to 150 Canadian health professionals in practice settings. The response rate was 83% (n = 124). The data provide a demographic profile of early adopters of end-user searching in the health care community. Positive correlations with the user's level of implementation of end-user searching were found for the following variables: amount of time spent in research activities, amount of system training received, and use of Medical Subject Headings (MeSH). There was a negative association between the amount of time spent in patient care and implementation level. General practitioners and family physicians had lower implementation levels than physicians in other specialties. Successful implementers were more likely to be computer literate and to place a high value on formal information sources such as books, journals, and libraries. Health professionals using so-called "user-friendly" or menu-based software had lower levels of personal commitment to using online databases, as measured by a combination of continuance of use, willingness to pay personally, type of recommendations made to colleagues, and hardware ownership.  相似文献   
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