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   12018篇
  免费   2篇
教育   9304篇
科学研究   1222篇
各国文化   19篇
体育   360篇
文化理论   386篇
信息传播   729篇
  2020年   2篇
  2019年   13篇
  2018年   2181篇
  2017年   2094篇
  2016年   1572篇
  2015年   108篇
  2014年   121篇
  2013年   197篇
  2012年   218篇
  2011年   691篇
  2010年   838篇
  2009年   437篇
  2008年   643篇
  2007年   1155篇
  2006年   83篇
  2005年   406篇
  2004年   459篇
  2003年   377篇
  2002年   142篇
  2001年   20篇
  2000年   40篇
  1999年   7篇
  1998年   9篇
  1997年   24篇
  1996年   8篇
  1995年   14篇
  1994年   8篇
  1993年   15篇
  1992年   8篇
  1991年   16篇
  1990年   2篇
  1989年   5篇
  1988年   9篇
  1987年   3篇
  1986年   6篇
  1985年   12篇
  1983年   3篇
  1982年   3篇
  1981年   7篇
  1980年   5篇
  1978年   6篇
  1977年   4篇
  1976年   4篇
  1975年   4篇
  1974年   2篇
  1973年   5篇
  1972年   6篇
  1971年   5篇
  1970年   4篇
  1969年   7篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
991.
992.
993.
994.
995.
The being together intervention intends to raise teacher capacity in Norwegian Early Childhood Education and Care (ECEC) institutions and promote social and emotional development in preschoolers by implementing an authoritative (warm and predictable) adult style in the institution. An authoritative adult balances between building up high quality interactions with children, while at the same time having a predictable structure with clear norms and social expectations in the learning environment. The purpose of this study was to investigate what helped the ECEC institutions to successfully implement the program principles and core components, and what were the challenges. The staff groups of seven Norwegian ECEC institutions in different municipalities who took part in the innovation were interviewed at the beginning and before the end of the first year of implementation. Data analysis identified five success criteria in the implementation process; strong commitment to the authoritative adult style, strong focus on the implementation process, advanced support systems, highly involved leaders, and a collective orientation. These elements resulted in a shared vision and an academically grounded practice in the ECEC institutions. Staff members without formal professional training and a lack of written documentation in the ECEC institutions should be given more consideration in further improvement of the capacity building.  相似文献   
996.
997.
In China, educational publishing is devoted to publishing mainly textbooks and teaching materials. For a long time, education publishing has dominated others in China’s publishing industry. However, after entering the new century, especially in the last 2 years, there has been the impact of changes in the College-Entrance Examination, the Invitation to Bid for Compilation and Publication of Textbooks, government procurement and Scientific and Technological Advancement for supplementary books. Therefore, publishing for education has been losing its previous major role and dominance. For making a leap forward and breakthrough in educational publication, we must open up a new train of thought for the development of educational publishing, we need three distinct transformations: first, change in publishing mode from extensive to intensive growth. Second, transformation from variety-scale to market-scale expansion. Third, transformation from being just a provider of content to one providing both content and services.  相似文献   
998.
This paper attempts a direct comparison of the available alternative channels that can be employed in a cross media publishing scheme. More precisely it examines the content, the publishing speed, and the rhythm of the publishing channels. Interesting conclusions are drawn concerning the characteristics of each channel. A new publishing channel is proposed in order to allow newspapers to directly compete with radio and TV channels.  相似文献   
999.
1000.
Negation recognition in medical narrative reports   总被引:1,自引:0,他引:1  
Substantial medical data, such as discharge summaries and operative reports are stored in electronic textual form. Databases containing free-text clinical narratives reports often need to be retrieved to find relevant information for clinical and research purposes. The context of negation, a negative finding, is of special importance, since many of the most frequently described findings are such. When searching free-text narratives for patients with a certain medical condition, if negation is not taken into account, many of the documents retrieved will be irrelevant. Hence, negation is a major source of poor precision in medical information retrieval systems. Previous research has shown that negated findings may be difficult to identify if the words implying negations (negation signals) are more than a few words away from them. We present a new pattern learning method for automatic identification of negative context in clinical narratives reports. We compare the new algorithm to previous methods proposed for the same task, and show its advantages: accuracy improvement compared to other machine learning methods, and much faster than manual knowledge engineering techniques with matching accuracy. The new algorithm can be applied also to further context identification and information extraction tasks.
Lior RokachEmail:
  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