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   2239篇
  免费   133篇
  国内免费   2篇
  2023年   12篇
  2022年   27篇
  2021年   26篇
  2020年   40篇
  2019年   63篇
  2018年   81篇
  2017年   103篇
  2016年   75篇
  2015年   47篇
  2014年   75篇
  2013年   243篇
  2012年   104篇
  2011年   116篇
  2010年   58篇
  2009年   76篇
  2008年   95篇
  2007年   82篇
  2006年   80篇
  2005年   90篇
  2004年   72篇
  2003年   71篇
  2002年   58篇
  2001年   31篇
  2000年   34篇
  1999年   38篇
  1998年   35篇
  1997年   24篇
  1996年   25篇
  1995年   17篇
  1994年   14篇
  1993年   23篇
  1992年   27篇
  1991年   24篇
  1990年   21篇
  1989年   16篇
  1988年   21篇
  1987年   18篇
  1986年   21篇
  1985年   24篇
  1984年   25篇
  1983年   16篇
  1982年   18篇
  1979年   18篇
  1977年   11篇
  1976年   12篇
  1975年   13篇
  1974年   12篇
  1973年   14篇
  1972年   11篇
  1969年   11篇
排序方式: 共有2374条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
7.
We introduce two new belief revision axioms: partial monotonicity and consequence correctness. We show that partial monotonicity is consistent with but independent of the full set of axioms for a Gärdenfors belief revision sytem. In contrast to the Gärdenfors inconsistency results for certain monotonicity principles, we use partial monotonicity to inform a consistent formalization of the Ramsey test within a belief revision system extended by a conditional operator. We take this to be a technical dissolution of the well-known Gärdenfors dilemma.In addition, we present the consequential correctness axiom as a new measure of minimal revision in terms of the deductive core of a proposition whose support we wish to excise. We survey several syntactic and semantic belief revision systems and evaluate them according to both the Gärdenfors axioms and our new axioms. Furthermore, our algebraic characterization of semantic revision systems provides a useful technical device for analysis and comparison, which we illustrate with several new proofs.Finally, we have a new inconsistency result, which is dual to the Gärdenfors inconsistency results. Any elementary belief revision system that is consequentially correct must violate the Gärdenfors axiom of strong boundedness (K*8), which we characterize as yet another monotonicity condition.This work was supported by the McDonnell Douglas Independent Research and Development program.  相似文献   
8.
Data from a survey of 4591 16-19-year-olds from four parts of Britain demonstrate that a North-South divide is manifested both economically and politically. Southerners are materially better off and more supportive of the Conservative party. Adopting a social identity analysis of sectional effects, we hypothesized that party political support is a manifestation of identification with locality, and also that political support, rather than perceived deprivation, would be associated with intentions to stay in or move out of ones locality. Results revealed that Labour supporters in the north of England, and Conservative supporters in the south were most committed to their locality. In Scotland, where nationalism is more directly linked to political parties, those who supported the Scottish Nationalist Party or Labour Party identified more strongly with Scotland and had less intention to leave, but also perceived their situation as more disadvantaged than did Conservatives. These findings are interpreted as supporting a social identity approach to political support and geographical occupational mobility. We suggest that despite the apparent irrationality of self-denying perceptions and choices, these may also serve self-preserving functions in the longer term.  相似文献   
9.
10.
An expanded view of health is advocated for assessment and treatment of individual clients in helping them achieve and maintain their maximum potential for high-level wellness. In addition, moderating variables, such as culture, age, and gender differences, have an impact on every dimension of health and wellness. In this article a multidimensional systems model for wellness is described, and gender differences along those dimensions are reviewed. Application of the model and implications for counseling are discussed. Finally, two illustrative case examples, one man and one woman, are described.  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