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   23618篇
  免费   980篇
  国内免费   13篇
  2020年   270篇
  2019年   268篇
  2018年   456篇
  2017年   393篇
  2016年   443篇
  2015年   288篇
  2014年   406篇
  2013年   1804篇
  2012年   693篇
  2011年   764篇
  2010年   411篇
  2009年   484篇
  2008年   666篇
  2007年   657篇
  2006年   609篇
  2005年   554篇
  2004年   515篇
  2003年   509篇
  2002年   466篇
  2001年   820篇
  2000年   820篇
  1999年   605篇
  1998年   266篇
  1997年   242篇
  1992年   511篇
  1991年   444篇
  1990年   506篇
  1989年   427篇
  1988年   407篇
  1987年   383篇
  1986年   406篇
  1985年   465篇
  1984年   363篇
  1983年   306篇
  1982年   248篇
  1981年   221篇
  1979年   350篇
  1978年   275篇
  1977年   223篇
  1976年   217篇
  1975年   312篇
  1974年   358篇
  1973年   365篇
  1972年   281篇
  1971年   250篇
  1970年   219篇
  1969年   237篇
  1968年   299篇
  1967年   258篇
  1966年   287篇
排序方式: 共有10000条查询结果,搜索用时 15 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