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   20355篇
  免费   2篇
  2024年   1篇
  2021年   1篇
  2020年   1篇
  2019年   4篇
  2018年   3483篇
  2017年   2813篇
  2016年   2241篇
  2015年   187篇
  2014年   71篇
  2013年   60篇
  2012年   556篇
  2011年   2378篇
  2010年   2511篇
  2009年   1468篇
  2008年   1695篇
  2007年   2168篇
  2006年   22篇
  2005年   208篇
  2004年   160篇
  2003年   110篇
  2002年   62篇
  2001年   31篇
  2000年   50篇
  1999年   13篇
  1998年   19篇
  1997年   16篇
  1996年   8篇
  1994年   1篇
  1991年   2篇
  1990年   8篇
  1985年   1篇
  1983年   1篇
  1978年   2篇
  1977年   1篇
  1976年   1篇
  1974年   1篇
  1971年   1篇
  1969年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
How can we explain that an assertion on something perceived can be understood in the same manner by somebody who cannot perceive that scene? This problem bases the interest in computational linguistics in how listener modeling could possibly be harmonized with reference semantics. Mental images substituting real perception appear as a way out. The architecture of the listener model has to be adapted to the creation and use of such pictorial data structures. Furthermore, the relation between the latter and a verbal (i. e., propositional) representation must be understood. The resulting architecture of a listener model with reference semantics can be employed to solve communicational problems from three general classes in a better way, as is demonstrated by an example implementation.  相似文献   
22.
23.
Tested a preventive intervention in which peer telephone dyads were developed for low-income, community-living, elderly women with low perceived social support. After an initial assessment, respondents were randomly assigned to either an assessment-only control or received 10 weeks of friendly staff telephone contact. After a second assessment, participants receiving the staff contact were randomly assigned to continue that contact or were paired in dyads to continue phone contact with one another. Dependent variables were measures of perceived social support, morale, depression, and loneliness. All groups, particularly the staff contact group, showed some improvement in mental health scores over time, but there were no significant differences between intervention groups, or between intervention and assessment-only control groups. The results suggest that participation in the study and in personal assessment interviews at home were probably morale enhancing, and that additional telephone contact did not significantly add to that effect. Evidence also indicates that, in this sample, low perceived family support was significantly related to poor mental health, so it is possible that a program designed to increase friend support may have been the wrong intervention.  相似文献   
24.
25.
26.
27.
28.
29.
30.
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