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   23901篇
  免费   994篇
  国内免费   13篇
  2020年   276篇
  2019年   273篇
  2018年   462篇
  2017年   401篇
  2016年   451篇
  2015年   296篇
  2014年   413篇
  2013年   1878篇
  2012年   701篇
  2011年   778篇
  2010年   421篇
  2009年   491篇
  2008年   679篇
  2007年   673篇
  2006年   618篇
  2005年   555篇
  2004年   524篇
  2003年   520篇
  2002年   474篇
  2001年   824篇
  2000年   825篇
  1999年   607篇
  1998年   267篇
  1997年   243篇
  1992年   518篇
  1991年   448篇
  1990年   508篇
  1989年   430篇
  1988年   412篇
  1987年   385篇
  1986年   407篇
  1985年   466篇
  1984年   364篇
  1983年   305篇
  1982年   253篇
  1981年   221篇
  1979年   351篇
  1978年   276篇
  1977年   224篇
  1976年   216篇
  1975年   314篇
  1974年   361篇
  1973年   367篇
  1972年   281篇
  1971年   251篇
  1970年   222篇
  1969年   238篇
  1968年   299篇
  1967年   258篇
  1966年   288篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
31.
32.
33.
Pregnancy reflects a common experience for women in today's workforce, yet recent data suggest that some women scale back or leave the workforce following childbirth. Considering these effects on women's careers, researchers have sought to understand the underlying dynamics of these decisions. Here, we explore a paradoxical reason for weakened postpartum career attitudes: help that women receive during pregnancy. We integrate stereotype threat and benevolent sexism theories to explain how the effects of help on postpartum intentions to quit may be transmitted through reductions in work self-efficacy. In doing so, we consider the role of perceived impact—or the extent to which help interferes with versus enables women's perceived ability to continue performing their work role. Results of a weekly diary study of 105 pregnant employees suggest that work-interfering help led to decreased self-efficacy for work during the following week. Furthermore, there was an indirect effect of average help received at work during pregnancy on postpartum intentions to quit the workforce through reductions in work self-efficacy that was stronger insofar as help was work-interfering versus work-enabling. Taken together, our results highlight unintended negative consequences that occur when others provide ineffective support to women at work during pregnancy.  相似文献   
34.
35.
36.
37.
38.
39.
Public goods theories highlight an incentive system that rewards ‘free riding’ on the contributions of early contributors toward collective actions. However, because such theories focus on creation of the good, they may underestimate returns that accrue to early contributors subsequent to the good's realization. The concept of formative investment is introduced here to describe the extent to which organizations help to create public goods such as interorganizational linkages like participatory federations. Data from the CEOs of 48 organizations involved in a participatory federation were used to assess how an organization's level of formative investment is related to later patterns of dependency and interaction among federation members. Findings suggest that from a long‐term perspective, and for goods that involve communication and interaction, the incentive structure may not be so favorable for free riders. To the extent that organizations with high formative investment have the capability to envision the future and communicate that vision to potential federation partners, they may be able to both reduce free riding and secure for themselves advantageous positions in the subsequent network of relations.  相似文献   
40.
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