全文获取类型
| 收费全文 | 32536篇 |
| 免费 | 338篇 |
| 国内免费 | 18篇 |
专业分类
| 教育 | 23642篇 |
| 科学研究 | 3308篇 |
| 各国文化 | 269篇 |
| 体育 | 1959篇 |
| 综合类 | 20篇 |
| 文化理论 | 654篇 |
| 信息传播 | 3040篇 |
出版年
| 2022年 | 132篇 |
| 2021年 | 204篇 |
| 2020年 | 338篇 |
| 2019年 | 475篇 |
| 2018年 | 2763篇 |
| 2017年 | 2725篇 |
| 2016年 | 2204篇 |
| 2015年 | 589篇 |
| 2014年 | 702篇 |
| 2013年 | 3965篇 |
| 2012年 | 769篇 |
| 2011年 | 1255篇 |
| 2010年 | 1316篇 |
| 2009年 | 851篇 |
| 2008年 | 1170篇 |
| 2007年 | 1626篇 |
| 2006年 | 530篇 |
| 2005年 | 789篇 |
| 2004年 | 845篇 |
| 2003年 | 747篇 |
| 2002年 | 516篇 |
| 2001年 | 444篇 |
| 2000年 | 465篇 |
| 1999年 | 378篇 |
| 1998年 | 237篇 |
| 1997年 | 296篇 |
| 1996年 | 285篇 |
| 1995年 | 238篇 |
| 1994年 | 240篇 |
| 1993年 | 206篇 |
| 1992年 | 301篇 |
| 1991年 | 291篇 |
| 1990年 | 310篇 |
| 1989年 | 298篇 |
| 1988年 | 260篇 |
| 1987年 | 259篇 |
| 1986年 | 236篇 |
| 1985年 | 278篇 |
| 1984年 | 207篇 |
| 1983年 | 206篇 |
| 1982年 | 191篇 |
| 1981年 | 184篇 |
| 1980年 | 192篇 |
| 1979年 | 242篇 |
| 1978年 | 181篇 |
| 1977年 | 156篇 |
| 1976年 | 138篇 |
| 1975年 | 124篇 |
| 1974年 | 119篇 |
| 1973年 | 106篇 |
排序方式： 共有10000条查询结果，搜索用时 203 毫秒
41.
42.
43.
44.
45.
46.
47.
This study examined the cost and performance of six commercial document suppliers accessible via OCLC, and comapared their service to that of traditional interlibrary loan (ILL). Results indicated that, while commercial firms cannot be recommended as a wholesale replacement for ILL, they can add much-needed flexibility to a library's overall plan for document delivery. 相似文献
48.
The authors report on a self‐completed questionnaire study from a North Yorkshire based general practice regarding the information needs of its clinicians. The work was carried out with a particular focus on the practice library, and the findings identified that a new approach to maintaining and developing the library was needed. The literature regarding the information needs of primary care clinicians and the role of practice libraries is considered, and compared to those of the clinicians at the practice. Discussion follows on how a collaborative project was set up between the practice and a librarian based at the local NHS Trust library in order to improve the existing practice library. Difficulties encountered and issues unique to the project are explored, including training implications presented by the implementation of electronic resources. Marketing activities implemented are discussed, how the library will operate in its new capacity, and how ongoing support and maintenance of the library will be carried out. It is concluded that although scepticism still exists regarding librarian involvement in practice libraries, collaboration between clinicians and librarians is an effective approach to the successful development and maintenance of a practice library, and recommendations are therefore made for similar collaborative work. 相似文献
49.
David Smith 《Higher Education Quarterly》2001,55(2):131-157
Collaboration in research activity is now the rule not the exception. It is encouraged by government, funding bodies and research councils. However, the concept of collaboration is difficult to define. It occurs at many different levels, driven by a complex research system-policy dynamic. Three different models of collaboration – inter-personal, team and corporate – are identified, each with their own rationale, structure, benefits and costs. The paper examines the institutional implications of these models. It argues that institutions and individual researchers conceptualise and operationalise research collaboration in different ways. Although vital to institutional mission, collaborative research is rarely mapped by senior managers with any precision. In general, institutional approaches to the management of collaborative research lag behind the policy rhetoric. The paper concludes with an overview of the key dilemmas for institutional strategists and policy makers posed by the shift towards more collaborative approaches to research. 相似文献
50.