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   177342篇
  免费   8175篇
  国内免费   158篇
  2020年   2827篇
  2019年   3505篇
  2018年   3611篇
  2017年   4075篇
  2016年   4721篇
  2015年   3984篇
  2014年   4872篇
  2013年   23734篇
  2012年   4680篇
  2011年   3787篇
  2010年   3979篇
  2009年   4841篇
  2008年   4021篇
  2007年   3558篇
  2006年   4089篇
  2005年   4061篇
  2004年   3562篇
  2003年   3197篇
  2002年   3005篇
  2001年   3503篇
  2000年   3343篇
  1999年   3291篇
  1998年   2866篇
  1997年   2715篇
  1996年   2635篇
  1995年   2458篇
  1994年   2421篇
  1993年   2361篇
  1992年   2731篇
  1991年   2569篇
  1990年   2422篇
  1989年   2315篇
  1988年   2289篇
  1987年   2284篇
  1986年   2302篇
  1985年   2500篇
  1984年   2602篇
  1983年   2363篇
  1982年   2402篇
  1981年   2384篇
  1980年   2223篇
  1979年   2287篇
  1978年   2216篇
  1977年   2188篇
  1976年   1988篇
  1975年   2076篇
  1974年   2132篇
  1973年   2027篇
  1972年   1629篇
  1971年   1555篇
排序方式: 共有10000条查询结果,搜索用时 46 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