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   36369篇
  免费   1318篇
  国内免费   11篇
  2018年   552篇
  2017年   494篇
  2016年   579篇
  2015年   414篇
  2014年   499篇
  2013年   3412篇
  2012年   866篇
  2011年   898篇
  2010年   583篇
  2009年   556篇
  2008年   864篇
  2007年   766篇
  2006年   724篇
  2005年   600篇
  2004年   584篇
  2003年   613篇
  2002年   587篇
  2001年   1175篇
  2000年   1128篇
  1999年   861篇
  1996年   491篇
  1995年   466篇
  1994年   461篇
  1993年   432篇
  1992年   907篇
  1991年   802篇
  1990年   805篇
  1989年   709篇
  1988年   718篇
  1987年   699篇
  1986年   695篇
  1985年   678篇
  1984年   603篇
  1983年   506篇
  1982年   395篇
  1981年   410篇
  1980年   381篇
  1979年   574篇
  1978年   428篇
  1976年   388篇
  1975年   531篇
  1974年   524篇
  1973年   586篇
  1972年   561篇
  1971年   502篇
  1970年   442篇
  1969年   425篇
  1968年   537篇
  1967年   457篇
  1966年   449篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
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   
42.
43.
44.
45.
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   
46.
47.
48.
49.
50.
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