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   85463篇
  免费   3457篇
  国内免费   43篇
  2020年   902篇
  2019年   1112篇
  2018年   1565篇
  2017年   1558篇
  2016年   1709篇
  2015年   1189篇
  2014年   1432篇
  2013年   6923篇
  2012年   2624篇
  2011年   2737篇
  2010年   1674篇
  2009年   1641篇
  2008年   2489篇
  2007年   2465篇
  2006年   2151篇
  2005年   1998篇
  2004年   1930篇
  2003年   1765篇
  2002年   1800篇
  2001年   2717篇
  2000年   2559篇
  1999年   1966篇
  1998年   1006篇
  1997年   887篇
  1996年   825篇
  1995年   801篇
  1993年   800篇
  1992年   1707篇
  1991年   1578篇
  1990年   1601篇
  1989年   1401篇
  1988年   1373篇
  1987年   1338篇
  1986年   1380篇
  1985年   1489篇
  1984年   1168篇
  1983年   1044篇
  1979年   1215篇
  1978年   859篇
  1976年   807篇
  1975年   1077篇
  1974年   1167篇
  1973年   1201篇
  1972年   1072篇
  1971年   971篇
  1970年   929篇
  1969年   903篇
  1968年   1179篇
  1967年   1098篇
  1966年   978篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
61.
Two experiments examined repetition priming in the recognition of famous voices. In Experiment 1, reaction times for fame decisions to famous voice samples were shorter than in an unprimed condition, when voices were primed by a different voice sample of the same person having been presented in an earlier phase of the experiment. No effect of voice repetition was observed for non-famous voices. In Experiment 2, it was investigated whether this priming effect is voice-specific or whether it is related to post-perceptual processes in person recognition. Recognizing a famous voice was again primed by having earlier heard a different voice sample of that person. Although an earlier exposure to that person's name did not cause any priming, there was some indication of priming following an earlier exposure to that person's face. Finally, earlier exposure to the identical voice sample (as compared to a different voice sample from the same person) caused a considerable bias towards responding 'famous'-i.e. performance benefits for famous but costs for nonfamous voices. The findings suggestthat (1) repetition priming invoice recognition primarily involves the activation of perceptual representations of voices, and (2) it is important to determine the conditions in which priming causes bias effects that need to be disentangled from performance benefits.  相似文献   
62.
63.
64.
65.
66.
67.
68.
By roughly 6 years of age, children acquire the stereotype that men are more competent than women in science, technology, engineering, and mathematics (STEM), potentially leading to greater trust in scientific information provided by men. This study tested whether 3- to 8-year-old children differentially endorsed conflicting information about science and toys presented by male and female informants depicted as a ‘man’ and ‘woman’ (Exp1) or ‘scientists’ (Exp2). Children were expected to endorse toy testimony from gender-matched informants; thus, the key question concerned endorsement of science testimony. In Exp1 (N = 149), boys and girls showed a same-gender informant preference for toy testimony; however, girls endorsed the male informant's testimony more for science than for toys – but only when tested by a male experimenter. In Exp2 (N = 264), boys and girls showed a same-gender preference, irrespective of content. Findings suggest that STEM-related gender stereotypes might lead girls to trust scientific information presented by men over women in certain contexts.  相似文献   
69.
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   
70.
陈莲笙道长生于1917年10月25日,上海市人.历任中国道教协会副会长,中国道教协会顾问,上海市道教协会会长.上海市道教协会名誉会长,上海城隍庙住持,上海道学院院长,<上海道教>杂志主编,上海市宗教学会理事,上海市政协第七届委员,上海市政协第八、九届常委等职.  相似文献   
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