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   658篇
  免费   26篇
教育   435篇
科学研究   63篇
各国文化   9篇
体育   87篇
文化理论   7篇
信息传播   83篇
  2023年   5篇
  2022年   12篇
  2021年   23篇
  2020年   33篇
  2019年   30篇
  2018年   48篇
  2017年   59篇
  2016年   54篇
  2015年   29篇
  2014年   25篇
  2013年   116篇
  2012年   29篇
  2011年   24篇
  2010年   15篇
  2009年   24篇
  2008年   18篇
  2007年   23篇
  2006年   12篇
  2005年   9篇
  2004年   9篇
  2003年   14篇
  2002年   9篇
  2001年   6篇
  2000年   6篇
  1998年   3篇
  1997年   3篇
  1995年   1篇
  1994年   2篇
  1993年   1篇
  1992年   2篇
  1991年   3篇
  1990年   2篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1986年   2篇
  1985年   1篇
  1984年   2篇
  1983年   3篇
  1982年   5篇
  1981年   1篇
  1979年   2篇
  1978年   3篇
  1976年   1篇
  1975年   3篇
  1973年   1篇
  1972年   3篇
  1971年   2篇
  1970年   1篇
  1969年   1篇
排序方式: 共有684条查询结果,搜索用时 46 毫秒
41.
This study investigates how school demographics and their interactions with policies affect the mobility behaviors of public school teachers with various human capital characteristics. Using data from North Carolina from 1995 to 2006, it finds that teachers’ career stage and human capital investments dominate their decisions to leave public school teaching and school demographic characteristics play a dominant role in intra-system sorting. Schools serving at-risk children struggle to attract and retain teachers with desirable observable characteristics. We find evidence to suggest that across-the-board school-based pay-for-performance policies have small but significant associations with mobility decisions and appear to exacerbate inequities in the distribution of teacher qualifications.  相似文献   
42.
43.
Education and Information Technologies - Educational technologies have captured the attention of researchers, policy makers, and parents. Each year, considerable effort and money are invested into...  相似文献   
44.
Rhetoric about the ideal pricing model for scholarly content is often both strident and ill‐informed. Recognition of the nature of the business model is sometimes overlooked in favour of slogans or blanket accusations. This paper reviews qualitatively some of the core issues surrounding the creation of a sustainable pricing model that will enable authors, readers, and publishers to coexist. No particular examples are recommended or rejected; what is important is that interested parties explore thoroughly the available options and make decisions based on available facts, instead of emotion or trends.  相似文献   
45.
46.
In this study, we investigated trunk coordination during rate-controlled bipedal vertical dance jumps. The aims of the study were to investigate the pattern of coordination and the magnitude of coordination variability within jump phases and relative to phase-defining events during the jump. Lumbar and thoracic kinematics were collected from seven dancers during a series of jumps at 95 beats per minute. The vector coding technique was used to quantify the pattern and variability of trunk coordination. Coordination was predominantly anti-phase during propulsion and landing. Mean coordination variability peaked just before the landing phase and at the transition from landing to propulsion phases, and was lowest during the propulsion phase just before toe-off. The results indicate that peaks in variability could be explained by task and phase-specific biomechanical demands.  相似文献   
47.
Recruitment into the scientific community is one oft-stated goal of science education--in the post-Sputnik United States, for example--but this obscures the fact that science textbooks are often read by people who will never be scientists. It cannot be presupposed that science textbooks for younger audiences, students in primary and secondary schools, function in this way. For this reason, precollegiate-level science textbooks are sometimes discussed as a subset of literature popularizing science. The high school science classroom and the textbook are forums for exposing the public to science. The role of governments and educational institutions in regulating the consumption of these texts not only determines which books are used; it influences how they are written, read, and deemed authoritative. Therefore such science textbooks should not be seen as (at best) the disjunction of texts-for-training and books-for-popularization. A changing sense of what "textbooks" are compels a different understanding of their use in the history of science.  相似文献   
48.
People from Generation Y, given their number and stage in the family life-cycle, represent a key emerging audience for major sports. The study focussed on the effect of friends and half time enhancements on likely attendance at matches. The sport domain was the Australian Football League (AFL), the elite Australian rules football competition. The enhancements being tested were half-time entertainments based on performers from well-known television talent shows, Australian Idol and It Takes Two. Scenarios with and without interactive participation, based on short messaging service (SMS) messages, were tested. The study used a general population sample of 909 Generation Y people in a traditional AFL market and one where AFL is not the major winter competition. Previous attendance and sport orientation were the major influences on attendance at major sports, including the AFL. Friends influenced likely attendance at a game, but no effects were found for half-time entertainments. People who attended matches with friends typically had social activities before and after the game. This suggested that one promotional strategy to expand existing markets was to find and engage the social networks of existing fans, making sport attendance a broader part of an overall social event.  相似文献   
49.
The demand for greater public accountability is changing the nature of ex ante peer review at public science agencies worldwide. Based on a four year research project, this essay examines these changes through an analysis of the process of grant proposal review at two US public science agencies, the National Institutes of Health (NIH) and the National Science Foundation (NSF). Weaving historical and conceptual narratives with analytical accounts, we describe the ways in which these two agencies struggle with the question of incorporating considerations of societal impact into the process of peer review. We use this comparative analysis to draw two main conclusions. First, evaluation of broader societal impacts is not different in kind from evaluation of intellectual merit. Second, the scientific community may actually bolster its autonomy by taking a broader range of considerations into its peer review processes.  相似文献   
50.
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