全文获取类型
收费全文 | 15760篇 |
免费 | 59篇 |
国内免费 | 6篇 |
专业分类
教育 | 12203篇 |
科学研究 | 1428篇 |
各国文化 | 84篇 |
体育 | 640篇 |
综合类 | 1篇 |
文化理论 | 438篇 |
信息传播 | 1031篇 |
出版年
2021年 | 25篇 |
2020年 | 50篇 |
2019年 | 87篇 |
2018年 | 2251篇 |
2017年 | 2181篇 |
2016年 | 1653篇 |
2015年 | 193篇 |
2014年 | 209篇 |
2013年 | 1179篇 |
2012年 | 283篇 |
2011年 | 775篇 |
2010年 | 899篇 |
2009年 | 520篇 |
2008年 | 741篇 |
2007年 | 1231篇 |
2006年 | 166篇 |
2005年 | 477篇 |
2004年 | 522篇 |
2003年 | 454篇 |
2002年 | 208篇 |
2001年 | 77篇 |
2000年 | 89篇 |
1999年 | 66篇 |
1998年 | 59篇 |
1997年 | 80篇 |
1996年 | 65篇 |
1995年 | 61篇 |
1994年 | 51篇 |
1993年 | 54篇 |
1992年 | 51篇 |
1991年 | 68篇 |
1990年 | 55篇 |
1989年 | 56篇 |
1988年 | 44篇 |
1987年 | 39篇 |
1986年 | 46篇 |
1985年 | 58篇 |
1984年 | 34篇 |
1983年 | 43篇 |
1982年 | 43篇 |
1981年 | 45篇 |
1980年 | 33篇 |
1979年 | 64篇 |
1978年 | 33篇 |
1977年 | 48篇 |
1976年 | 37篇 |
1975年 | 31篇 |
1974年 | 37篇 |
1973年 | 25篇 |
1972年 | 22篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
The institutions of science arecomposed of communities with conflicting andoverlapping interests. In the United States,the internal governance of science resemblesthe structure of republican government,particularly in its fragmentation,representation, and extension. This articlecalls upon Michael Polanyi's metaphor of a`Republic of Science' in the context ofAmerican history and political theory, toexamine the ways in which these interests arerepresented. Using the metaphor obliges us toask about rules of citizenship in the`Republic', and to determine whether those whopay for science should also be represented inits institutions. 相似文献
22.
Kristjana Kristinsdóttir 《Archival Science》2003,3(2):199-204
The article sets off with a brief summary of the history of appraisal and disposal of records as processed at the National Archives of Iceland (NAI) since its establishment in 1882 to present times. Rules on appraisal and disposal of records introduced in 1900, 1911, and 1916 were ignored and all records were kept. Status quo remained until 1985 when a new National Archives Act was passed. The appraisal and disposal process adopted then is described and explained. It included the publication of instructions on records management as well as forms relating to records management. The influence of acts of law on the appraisal and disposal process is explained. Finally the experience with the arrangement of organised appraisal in Iceland is described. 相似文献
23.
Richard J. Gigliotti 《Research in higher education》1987,26(4):401-415
Knowledgeable observers generally agree that students can give reasonably unbiased assessments of their classes, as long as proper instruments and procedures are used. These same observers agree, however, that more research is needed to understand the subtle dynamics which affect evaluations. Students' expectations (obtained on the first day) and the violation of these expectations are two possible factors. Their effects on students' final interest and future intentions are compared with students' actual reports of the class given at the end of the semester (n=196). Regression analysis using a simultaneous entry of expectations, expectancy violations, and final reports shows that students' reports at the end of the course account for almost all of the explained variance in the course rating items. 相似文献
24.
25.
26.
27.
28.
Richard H. Beyler 《Minerva》2006,44(3):251-266
In responding to incidents of internal ‘indiscipline’, the Kaiser Wilhelm Society many times asserted its authority, sometimes in cooperation with agencies of the Nazi regime. Following the Second World War, however, the KWS represented itself as having been intrinsically anti-Nazi. This essay describes the assumptions inherent in this view, and points to its wider implications for post-war German science. 相似文献
29.
30.