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   44300篇
  免费   1654篇
  国内免费   12篇
  2019年   510篇
  2018年   702篇
  2017年   685篇
  2016年   801篇
  2015年   578篇
  2014年   713篇
  2013年   4268篇
  2012年   1185篇
  2011年   1196篇
  2010年   806篇
  2009年   761篇
  2008年   1151篇
  2007年   1042篇
  2006年   983篇
  2005年   857篇
  2004年   855篇
  2003年   852篇
  2002年   867篇
  2001年   1289篇
  2000年   1236篇
  1999年   990篇
  1998年   510篇
  1996年   581篇
  1995年   586篇
  1994年   561篇
  1993年   529篇
  1992年   997篇
  1991年   897篇
  1990年   890篇
  1989年   780篇
  1988年   767篇
  1987年   749篇
  1986年   757篇
  1985年   758篇
  1984年   693篇
  1983年   605篇
  1982年   495篇
  1981年   541篇
  1980年   480篇
  1979年   681篇
  1978年   554篇
  1976年   485篇
  1975年   619篇
  1974年   620篇
  1973年   649篇
  1972年   614篇
  1971年   539篇
  1968年   579篇
  1967年   491篇
  1966年   482篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
An electronic apparatus using infrared beams for monitoring the movements of individual bees under dark conditions is described. The searching behavior of workers in an arena was monitored over 2-h periods. Mean ambulatory velocity for one bee over a distance of 100 mm was 45.6±1.51 mm/sec (n=45). Thigmokinesis and temporal activity patterns are illustrated.  相似文献   
45.
46.
In this paper, we organize past and present theories and models of creativity by using a new conceptual framework—the creativity matrix—with the aim of highlighting the dimensions of creativity we know a lot about and those we tend to either ignore or find difficult to study. This matrix is formed by bringing together a developmental model of creativity (the 4 C's) and a structural one (the 5 A's). We start by briefly describing these two conceptual frameworks, and then, we proceed to exploring the matrix itself by describing how the 5 A's are dynamically organized at each “level” of the 4 C's. Importantly, our overview of the matrix is informed by existing models and concepts that address one of more of the C's and the A's. This gives us a unique opportunity to take stock of what has been studied so far and, toward the end, consider new avenues for the development of theory and research agendas within creativity studies.  相似文献   
47.
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   
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