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   3383篇
  免费   35篇
  国内免费   2篇
教育   2411篇
科学研究   364篇
各国文化   31篇
体育   229篇
综合类   2篇
文化理论   30篇
信息传播   353篇
  2022年   18篇
  2021年   36篇
  2020年   47篇
  2019年   115篇
  2018年   175篇
  2017年   157篇
  2016年   142篇
  2015年   83篇
  2014年   113篇
  2013年   676篇
  2012年   74篇
  2011年   79篇
  2010年   83篇
  2009年   79篇
  2008年   81篇
  2007年   82篇
  2006年   63篇
  2005年   67篇
  2004年   59篇
  2003年   38篇
  2002年   36篇
  2001年   40篇
  2000年   43篇
  1999年   38篇
  1998年   39篇
  1997年   30篇
  1996年   27篇
  1995年   28篇
  1994年   26篇
  1993年   30篇
  1992年   35篇
  1991年   31篇
  1990年   34篇
  1989年   34篇
  1988年   27篇
  1987年   22篇
  1986年   30篇
  1985年   32篇
  1984年   31篇
  1983年   21篇
  1982年   29篇
  1980年   21篇
  1979年   20篇
  1977年   18篇
  1976年   19篇
  1967年   17篇
  1941年   19篇
  1939年   23篇
  1937年   41篇
  1936年   40篇
排序方式: 共有3420条查询结果,搜索用时 15 毫秒
21.
This project provides a critical evaluation of networked resources as they relate to the library's collection development policy, identifies areas of the curriculum not well represented, establishes a reliable method of assessing usage across all resources, and develops a framework of quantitative data for collection development decision making.  相似文献   
22.
23.
This paper characterizes the methodological foundations of national standardization in the Russian Federation, in particular in the library and information field. The activities of Technical Standardization Committee 191 Scientific and Technical Information, Librarianship, and Publishing are reported.  相似文献   
24.
Inconsistency is often considered an indication of deceit. The conceptualization of consistency used in deception research, however, has not made a clear distinction between two concepts long differentiated by philosophers: coherence and correspondence. The existing literature suggests that coherence is not generally useful for deception detection. Correspondence, however, appears to be quite useful. The present research developed a model of how correspondence is utilized to make judgments, and this article reports on four studies designed to elaborate on the model. The results suggest that judges attend strongly to correspondence and that they do so in an additive fashion. As noncorrespondent information accumulates, an increasingly smaller proportion of judges make truthful assessments of guilty suspects. This work provides a basic framework for examining how information is utilized to make deception judgments and forms the correspondence and coherence module of truth-default theory.  相似文献   
25.
With the rise of microfluidics for the past decade, there has come an ever more pressing need for a low-cost and rapid prototyping technology, especially for research and education purposes. In this article, we report a rapid prototyping process of chromed masks for various microfluidic applications. The process takes place out of a clean room, uses a commercially available video-projector, and can be completed in less than half an hour. We quantify the ranges of fields of view and of resolutions accessible through this video-projection system and report the fabrication of critical microfluidic components (junctions, straight channels, and curved channels). To exemplify the process, three common devices are produced using this method: a droplet generation device, a gradient generation device, and a neuro-engineering oriented device. The neuro-engineering oriented device is a compartmentalized microfluidic chip, and therefore, required the production and the precise alignment of two different masks.  相似文献   
26.
27.
28.
In collaborative problem solving, children produce and evaluate arguments for proposals. We investigated whether 3- and 5-year-olds (N = 192) can produce and evaluate arguments against those arguments (i.e., counter-arguments). In Study 1, each child within a peer dyad was privately given a reason to prefer one over another solution to a task. One child, however, was given further information that would refute the reasoning of their partner. Five-year-olds, but not 3-year-olds, identified and produced valid and relevant counter-arguments. In Study 2, 3-year-olds were given discourse training (discourse that contrasted valid and invalid counter-arguments) and then given the same problem-solving tasks. After training, 3-year-olds could also identify and produce valid and relevant counter-arguments. Thus, participating in discourse about reasons facilitates children’s counter-argumentation.  相似文献   
29.
Disparities in the technology practices, skills and knowledge of school students still exist, despite widespread investment, and use in schools. In order to understand why inequalities remain, we first need a more nuanced understanding of students’ technology practice, including understanding how their backgrounds, circumstances and experiences shape their perceptions of and engagement with technology. This paper proposes that research in the field of educational technology would benefit from a sociological framing in order to highlight how and why students use technology at school and in their everyday lives. The paper reports on a qualitative embedded case study of 13–16-year-old students in two Australian secondary schools. In-depth case studies of two selected students illustrate the complex nature of students’ technology practice. Bourdieu’s concepts of field, habitus and capital are used as a lens through which to view and understand inequalities in students’ technology practice. The findings demonstrate the utility of sociological theory in educational technology research by highlighting systems and structures of reproduction and transformation. Furthermore, the findings can inform an approach to teaching and learning that considers students’ varied experiences, knowledge, perspectives and backgrounds relating to technology.  相似文献   
30.
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