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   69509篇
  免费   2654篇
  国内免费   23篇
  2019年   741篇
  2018年   1059篇
  2017年   1028篇
  2016年   1168篇
  2015年   855篇
  2014年   1005篇
  2013年   5737篇
  2012年   1846篇
  2011年   1846篇
  2010年   1189篇
  2009年   1132篇
  2008年   1718篇
  2007年   1619篇
  2006年   1457篇
  2005年   1315篇
  2004年   1246篇
  2003年   1206篇
  2002年   1199篇
  2001年   2184篇
  2000年   2114篇
  1999年   1574篇
  1998年   732篇
  1996年   769篇
  1995年   720篇
  1994年   728篇
  1992年   1583篇
  1991年   1450篇
  1990年   1451篇
  1989年   1282篇
  1988年   1270篇
  1987年   1250篇
  1986年   1274篇
  1985年   1317篇
  1984年   1093篇
  1983年   969篇
  1982年   712篇
  1981年   720篇
  1979年   1137篇
  1978年   784篇
  1976年   724篇
  1975年   996篇
  1974年   1078篇
  1973年   1180篇
  1972年   1064篇
  1971年   971篇
  1970年   918篇
  1969年   893篇
  1968年   1143篇
  1967年   1014篇
  1966年   921篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
Extensive empirical evidence confirms a depressed entitlement effect wherein women pay themselves less than men for comparable work and believe the allocation fair. The present study tests the hypothesis that status subordination linked to being female underlies at least some of this effect. A 2 × 3 design crossed 180 undergraduates' gender with a control condition, which successfully established the depressed entitlement effect, and two experimental conditions. In one, women's status was enhanced through legitimation of women's task abilities; in the other, both women's and men's status was enhanced by adding educational credentials relevant to task ability. Follow-up analyses of the significant interaction revealed that the gap in self-pay demonstrated in the control condition disappeared when women's status was enhanced such that higher-status women's self-pay equaled that of men and exceeded that of control women. Although these findings confirm that status plays a role in producing depressed entitlement in self-pay, ancillary analyses of participants' perceptions point to the persistence of shifting standards and men's resistance to status threats.  相似文献   
72.
73.
74.
75.
The ability to make egocentric distance estimates of a single point source of light, seen in darkness and without the cues of changing size and luminance, was investigated in sixteen observers. The attenuation required to maintain constant luminance, when the target was viewed from different distances, was shown to follow the inverse square law providing the angle subtended by the light was less than 20 s arc. Distance changes were also simulated by means of a split mirror which produced vergence cues, or by test lenses to provide accommodation cues. Over the range 0.5 to 9.2 m distance estimates were surprisingly accurate, although there was some overestimation of near and underestimation of far distances. Most observers made good judgements when only convergence cues were varied, whereas no observers made consistently good judgements when only accommodation cues were varied. The difficulties are discussed in terms of the accommodation-convergence link. When distance was simulated by changing convergence and accommodation cues, estimates were not as good as when real distance was changed. Since good estimates were made with brief target exposures, these judgements were not based on subsequent convergence or accommodation changes. It is suggested that the metric or reference against which the apparently absolute judgements were made was the efferent demand signal associated with a 'resting' position of convergence in darkness.  相似文献   
76.
77.
78.
79.
80.
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