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   43948篇
  免费   1634篇
  国内免费   53篇
  2019年   505篇
  2018年   697篇
  2017年   677篇
  2016年   780篇
  2015年   566篇
  2014年   706篇
  2013年   4234篇
  2012年   1167篇
  2011年   1187篇
  2010年   804篇
  2009年   757篇
  2008年   1143篇
  2007年   1029篇
  2006年   987篇
  2005年   848篇
  2004年   847篇
  2003年   838篇
  2002年   858篇
  2001年   1263篇
  2000年   1225篇
  1999年   981篇
  1998年   505篇
  1996年   581篇
  1995年   581篇
  1994年   556篇
  1993年   521篇
  1992年   999篇
  1991年   895篇
  1990年   884篇
  1989年   776篇
  1988年   769篇
  1987年   747篇
  1986年   751篇
  1985年   754篇
  1984年   690篇
  1983年   605篇
  1982年   487篇
  1981年   539篇
  1980年   479篇
  1979年   680篇
  1978年   549篇
  1976年   483篇
  1975年   622篇
  1974年   616篇
  1973年   649篇
  1972年   615篇
  1971年   538篇
  1968年   577篇
  1967年   490篇
  1966年   475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