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   122698篇
  免费   1864篇
  国内免费   236篇
教育   85440篇
科学研究   13393篇
各国文化   1995篇
体育   9377篇
综合类   170篇
文化理论   1079篇
信息传播   13344篇
  2021年   938篇
  2020年   1672篇
  2019年   2604篇
  2018年   3098篇
  2017年   3369篇
  2016年   3406篇
  2015年   2330篇
  2014年   3212篇
  2013年   27476篇
  2012年   2382篇
  2011年   2682篇
  2010年   2323篇
  2009年   2618篇
  2008年   2365篇
  2007年   2113篇
  2006年   2341篇
  2005年   2329篇
  2004年   3026篇
  2003年   2348篇
  2002年   2153篇
  2001年   1989篇
  2000年   1654篇
  1999年   1537篇
  1998年   1464篇
  1997年   1519篇
  1996年   1704篇
  1995年   1466篇
  1994年   1466篇
  1993年   1475篇
  1992年   1472篇
  1991年   1390篇
  1990年   1383篇
  1989年   1302篇
  1988年   1171篇
  1987年   1087篇
  1986年   1139篇
  1985年   1401篇
  1984年   1268篇
  1983年   1264篇
  1982年   1251篇
  1981年   1174篇
  1980年   1154篇
  1979年   1222篇
  1978年   1198篇
  1977年   1111篇
  1976年   998篇
  1975年   800篇
  1974年   803篇
  1973年   776篇
  1971年   625篇
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
931.
932.
Teachers' role can be catalytic in the introduction of innovative digital tools in order to create new learning and assessment opportunities. This study explores science technology engineering and mathematics (STEM) teachers' intention to use mobile-based assessments in the teaching practice. The study proposes the teachers' acceptance mobile-based assessment (TAMBA) model which extends the technology acceptance model by introducing individual, social, institutional and instructional design factors. An appropriate questionnaire was developed and answered by 161 STEM teachers from 32 European countries. Their responses were analyzed using structural equation modeling. The proposed TAMBA model explains about 50% of the variance in teachers' intention to adopt mobile-based assessment. Perceived Ease of Use was found to be the most important determinant in teachers' intention to use mobile-based assessment. Facilitating Conditions and Output Quality were the most influential external variables in the model. The study findings revealed that focusing on mobile assessment quality design as well as on institutional support are important factors for STEM teachers in order to accept mobile-based assessments in schools.  相似文献   
933.
Adjusting speed to maintain fast and accurate performance is critical to goal-directed behavior. This study examined development of response time adjustments in the stop signal task in 13,709 individuals aged 6–17 years (49.0% Caucasian) across four trial types: correct and incorrect go, successful (stop-inhibit), and failed (stop-respond) trials. People sped more after correct than incorrect go responses and slowed more after failed than successful stop trials. Greater slowing after stop-respond but less slowing after stop-inhibit trials was associated with better response inhibition. Response time adjustments were evident in children as young as age 6, developed throughout childhood, and plateaued by age 10. Results were consistent with the predictions of the error detection and shifting goal priority hypotheses for adjustments.  相似文献   
934.
935.
936.
937.
938.
939.
ABSTRACT

With increasing demand for improved medical equipment and healthcare, next-generation biomedical engineers need strong design skills. Equipping biomedical engineering students with tools for idea generation and development can increase student design success. Design Heuristics are an ideation tool developed through empirical studies of product designs. While identified in the mechanical engineering space, Design Heuristics may be applicable in biomedical engineering design. In our study, we implemented a Design Heuristics session during upper-level undergraduate and first-year graduate biomedical engineering design courses. We examined the applicability of Design Heuristics within individual and team concept generation contexts. The findings demonstrated that biomedical engineering students were able to use Design Heuristics to generate multiple concepts, and that initial concepts produced using Design Heuristics were carried over into final team design. The results support the applicability of Design Heuristics to student idea generation in biomedical engineering design.  相似文献   
940.
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