全文获取类型
收费全文 | 23320篇 |
免费 | 297篇 |
国内免费 | 21篇 |
专业分类
教育 | 15573篇 |
科学研究 | 3601篇 |
各国文化 | 191篇 |
体育 | 1675篇 |
综合类 | 21篇 |
文化理论 | 231篇 |
信息传播 | 2346篇 |
出版年
2021年 | 223篇 |
2020年 | 323篇 |
2019年 | 456篇 |
2018年 | 631篇 |
2017年 | 637篇 |
2016年 | 555篇 |
2015年 | 385篇 |
2014年 | 537篇 |
2013年 | 3964篇 |
2012年 | 522篇 |
2011年 | 483篇 |
2010年 | 446篇 |
2009年 | 401篇 |
2008年 | 433篇 |
2007年 | 452篇 |
2006年 | 389篇 |
2005年 | 363篇 |
2004年 | 377篇 |
2003年 | 345篇 |
2002年 | 354篇 |
2001年 | 449篇 |
2000年 | 490篇 |
1999年 | 382篇 |
1998年 | 211篇 |
1997年 | 261篇 |
1996年 | 267篇 |
1995年 | 192篇 |
1994年 | 216篇 |
1993年 | 201篇 |
1992年 | 315篇 |
1991年 | 309篇 |
1990年 | 333篇 |
1989年 | 346篇 |
1988年 | 287篇 |
1987年 | 290篇 |
1986年 | 313篇 |
1985年 | 332篇 |
1984年 | 266篇 |
1983年 | 239篇 |
1982年 | 228篇 |
1981年 | 191篇 |
1980年 | 204篇 |
1979年 | 291篇 |
1978年 | 242篇 |
1977年 | 209篇 |
1976年 | 183篇 |
1975年 | 164篇 |
1974年 | 194篇 |
1973年 | 174篇 |
1971年 | 180篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
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
45.
46.
47.
48.
The roles of academic health sciences librarians are continually evolving as librarians initiate new programs and services in response to developments in computer technology and user demands. However, statistics currently collected by libraries do not accurately reflect or measure these new roles. It is essential for librarians to document, measure, and evaluate these new activities to continue to meet the needs of users and to ensure the viability of their professional role. To determine what new measures should be compiled, the authors examined current statistics, user demands, professional literature, and current activities of librarians as reported in abstracts of poster sessions at Medical Library Association annual meetings. Three new categories of services to be measured are proposed. The first, consultation, groups activities such as quality filtering and individual point-of-need instruction. The second, outreach, includes activities such as working as liaisons, participating in grand rounds or morning report, and providing continuing education. The third area, Web authoring, encompasses activities such as designing Web pages, creating online tutorials, and developing new products. Adding these three measures to those already being collected will provide a more accurate and complete depiction of the services offered by academic health sciences librarians. 相似文献
49.
From 1919 to 1951, Alan Gregg and his mentor, Richard Pearce, directed the Medical Education and Medical SciencesDivisions of the Rockefeller Foundation. Although they oversaw the expenditure of millions of dollars, today they are forgotten. Yet, the system that Gregg administered became the model for the funding of biomedical research after the Second World War. This paper draws on the records of the Rockefeller Foundation to assess Gregg and his impact on biomedicine and philanthropy. 相似文献
50.