全文获取类型
收费全文 | 2682篇 |
免费 | 52篇 |
国内免费 | 3篇 |
专业分类
教育 | 1855篇 |
科学研究 | 155篇 |
各国文化 | 38篇 |
体育 | 361篇 |
综合类 | 1篇 |
文化理论 | 45篇 |
信息传播 | 282篇 |
出版年
2023年 | 8篇 |
2022年 | 18篇 |
2021年 | 25篇 |
2020年 | 56篇 |
2019年 | 98篇 |
2018年 | 118篇 |
2017年 | 129篇 |
2016年 | 119篇 |
2015年 | 67篇 |
2014年 | 88篇 |
2013年 | 576篇 |
2012年 | 80篇 |
2011年 | 83篇 |
2010年 | 64篇 |
2009年 | 69篇 |
2008年 | 82篇 |
2007年 | 95篇 |
2006年 | 67篇 |
2005年 | 72篇 |
2004年 | 68篇 |
2003年 | 76篇 |
2002年 | 57篇 |
2001年 | 48篇 |
2000年 | 43篇 |
1999年 | 37篇 |
1998年 | 32篇 |
1997年 | 28篇 |
1996年 | 30篇 |
1995年 | 32篇 |
1994年 | 28篇 |
1993年 | 39篇 |
1992年 | 24篇 |
1991年 | 28篇 |
1990年 | 18篇 |
1989年 | 21篇 |
1988年 | 22篇 |
1987年 | 19篇 |
1986年 | 17篇 |
1985年 | 14篇 |
1984年 | 20篇 |
1983年 | 13篇 |
1982年 | 14篇 |
1981年 | 17篇 |
1980年 | 6篇 |
1979年 | 6篇 |
1978年 | 8篇 |
1977年 | 8篇 |
1976年 | 9篇 |
1975年 | 6篇 |
1967年 | 4篇 |
排序方式: 共有2737条查询结果,搜索用时 15 毫秒
141.
Invented in the USA in 1891, basketball immediately proved a popular pastime among those who played the game but it did not initially rank in the estimation of most American observers as a national pastime. By the twenty-first century, however, basketball had become acclaimed by the media and fans as one of a trio of team sports that stood as national pastimes, alongside baseball and American football. Promoters of basketball have since its invention promoted it as worthy of national pastime status but for much of the first century of its existence it did not quite meet that threshold. Beloved in certain regions and among certain groups, widely played but not as widely watched, basketball remained until the last quarter of the twentieth century outside of the boundaries that denoted national pastime status to most observers in the USA. Beginning in that era, however, a confluence of forces catapulted the game into national pastime status, a new eminence in American popular culture underscored by the debut of Michael Jordan and the ‘Dream Team’ at the 1992 Olympics. 相似文献
142.
143.
Mark William Neff 《Minerva》2014,52(2):213-235
Studies of how scientists select research problems suggest the process involves weighing a number of factors, including funding availability, likelihood of success versus failure, and perceived publishability of likely results, among others. In some fields, a strong personal interest in conducting science to bring about particular social and environmental outcomes plays an important role. Conservation biologists are frequently motivated by a desire that their research will contribute to improved conservation outcomes, which introduces a pair of challenging questions for managers of science and scholars of policies governing science: 1) How do scientists integrate that goal into their processes of research priority evaluation, and 2) How can managers and funders of science utilize that knowledge in designing and administering funding programs? I use Q method to uncover four distinct schools of thought amongst researchers and knowledge-users about the merits of possible research priorities for coral reefs; one of the axes along which these schools of thought differ is in their interpretation of how science can and should interact with policy. The results reveal that perceived severity of reef stressors plays a role for some participants. Disciplinary training does not appear to be a major influence on research priority evaluation, but individual participants indicated professional expediency does prevent some researchers from pursuing or advocating that others pursue topics outside of that disciplinary specialty. Influences on and processes in research prioritization uncovered in this study have the potential to lead to counter-productive disciplinary path dependencies. From these results and building on outside literature, I conclude that better coordination and communication about research priorities across disciplines and with broader stakeholders – including knowledge users – could improve the research enterprise’s ability to contribute to meaningful societal and conservation goals. These findings are relevant to researchers and research administrators across disciplines that seek to conduct or fund science that is useful in addressing specific goals. 相似文献
144.
145.
146.
147.
148.
Mark Grant 《British Journal of Educational Studies》1999,47(1):56-70
The paper reviews the way in which Steiner schools have attached importance to the categorisation of pupil character and behaviour, drawing on a tradition going back to ancient Greek science. 相似文献
149.
150.