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   3320篇
  免费   67篇
  3387篇
  2020年   36篇
  2019年   45篇
  2018年   61篇
  2017年   70篇
  2016年   91篇
  2015年   68篇
  2014年   94篇
  2013年   445篇
  2012年   106篇
  2011年   86篇
  2010年   82篇
  2009年   99篇
  2008年   87篇
  2007年   76篇
  2006年   75篇
  2005年   58篇
  2004年   73篇
  2003年   68篇
  2002年   65篇
  2001年   48篇
  2000年   58篇
  1999年   55篇
  1998年   43篇
  1997年   40篇
  1996年   52篇
  1994年   32篇
  1993年   36篇
  1992年   42篇
  1991年   41篇
  1990年   33篇
  1989年   45篇
  1988年   38篇
  1987年   40篇
  1986年   37篇
  1985年   41篇
  1984年   37篇
  1983年   45篇
  1982年   46篇
  1981年   43篇
  1980年   27篇
  1979年   36篇
  1978年   27篇
  1977年   27篇
  1976年   40篇
  1975年   28篇
  1974年   35篇
  1972年   41篇
  1971年   28篇
  1969年   29篇
  1966年   39篇
排序方式: 共有3387条查询结果,搜索用时 0 毫秒
981.
Field research into the topic of withholding effort and its variants (shirking, loafing, free riding, and job neglect) has been limited due to a lack of measures that are applicable to organizational settings. This study used a multi-phase process to ascertain a measure of withholding effort that can be used in organizational settings. Items were generated through literature review and discussions with practitioners; culled by the authors; and tested in a field study in multiple, diverse organizations. Exploratory and confirmatory factor analyses found the construct of withholding effort to be multidimensional, but not necessarily as previous theoretical work in the area would suggest. Correlations of the various dimensions of withholding effort scales with existing scales tapping a wide range of employee attitudes were consistent with a priori expectations. Implications for the use of these scales in future workplace research and their practical application in organizations are discussed.  相似文献   
982.
Medical decision making often utilizes subjective observations to arrive at concrete judgments. The decisions frequently affect who receives scarce medical treatments and, thus, who lives or dies. In this paper, a model health status index is described. It is specific for the problem of choosing patients for hemodialysis or transplantation. Such a health status index may be designed for any medical decision involving such issues as drug treatment priorities, identification of salvageable patients, and selection of patients for scarce medical treatment. This index (1) incorporates a physician's own medical criteria and values, (2) can be modified as the data base improves, (3) assures consistency from decision to decision, and (4) can be developed and used without the help of a mathematician or computer.  相似文献   
983.
984.
985.
Resolution-based methods for modal logics   总被引:2,自引:0,他引:2  
  相似文献   
986.
An address given on 2 April 1997 at the Institute of Islamic Understanding, Malaysia (IKIM) on the occasion of the official visit of H.E. Prof. Dr Roman Herzog, President of the Federal Republic of Germany  相似文献   
987.
988.
989.
990.
The circumstances under which social support buffers the negative effects of stress have been a subject of much research. The hypothesis that social support is effective only when it matches the needs elicited by particular stressors was studied in a sample of divorcing mothers. Predictions were made regarding which types of support (Parenting, Emotional, and Tangible) would buffer the effects of Parenting, Social, and Tangible stress on depressive symptoms and on general psychological distress of divorcing mothers. Results did not support the specificity of social support buffering effects, though the stress and support scales often showed direct relationships to criterion measures. Implications were discussed for the assessment of support with multiple models, for future research designs, and for planning prevention programs to meet the needs of divorcing mothers.  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