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   182277篇
  免费   8055篇
  国内免费   162篇
  2020年   2775篇
  2019年   3455篇
  2018年   3695篇
  2017年   4123篇
  2016年   4726篇
  2015年   3915篇
  2014年   4793篇
  2013年   23422篇
  2012年   5029篇
  2011年   4266篇
  2010年   4050篇
  2009年   4869篇
  2008年   4424篇
  2007年   4029篇
  2006年   4448篇
  2005年   4347篇
  2004年   3861篇
  2003年   3451篇
  2002年   3289篇
  2001年   3803篇
  2000年   3599篇
  1999年   3447篇
  1998年   2881篇
  1997年   2694篇
  1996年   2599篇
  1995年   2442篇
  1994年   2408篇
  1993年   2354篇
  1992年   2816篇
  1991年   2661篇
  1990年   2521篇
  1989年   2406篇
  1988年   2362篇
  1987年   2357篇
  1986年   2354篇
  1985年   2582篇
  1984年   2587篇
  1983年   2369篇
  1982年   2413篇
  1981年   2354篇
  1980年   2215篇
  1979年   2303篇
  1978年   2220篇
  1977年   2172篇
  1976年   1988篇
  1975年   2098篇
  1974年   2146篇
  1973年   2004篇
  1972年   1617篇
  1971年   1546篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
201.
202.
203.
Several studies have illuminated how processing manual action verbs (MaVs) affects the programming or execution of concurrent hand movements. Here, to circumvent key confounds in extant designs, we conducted the first assessment of motor–language integration during handwriting—a task in which linguistic and motoric processes are co‐substantiated. Participants copied MaVs, non‐manual action verbs, and non‐action verbs as we collected measures of motor programming and motor execution. Programming latencies were similar across conditions, but execution was faster for MaVs than for the other categories, regardless of whether word meanings were accessed implicitly or explicitly. In line with the Hand‐Action‐Network Dynamic Language Embodiment (HANDLE) model, such findings suggest that effector‐congruent verbs can prime manual movements even during highly automatized tasks in which motoric and verbal processes are naturally intertwined. Our paradigm opens new avenues for fine‐grained explorations of embodied language processes.  相似文献   
204.
205.
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   
206.
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   
207.
208.
209.
210.
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