全文获取类型
| 收费全文 | 787篇 |
| 免费 | 3篇 |
专业分类
| 教育 | 462篇 |
| 科学研究 | 127篇 |
| 各国文化 | 6篇 |
| 体育 | 28篇 |
| 文化理论 | 7篇 |
| 信息传播 | 160篇 |
出版年
| 2022年 | 4篇 |
| 2021年 | 6篇 |
| 2020年 | 9篇 |
| 2019年 | 5篇 |
| 2018年 | 10篇 |
| 2017年 | 11篇 |
| 2016年 | 6篇 |
| 2015年 | 10篇 |
| 2014年 | 14篇 |
| 2013年 | 165篇 |
| 2012年 | 53篇 |
| 2011年 | 95篇 |
| 2010年 | 22篇 |
| 2009年 | 20篇 |
| 2008年 | 19篇 |
| 2007年 | 13篇 |
| 2006年 | 36篇 |
| 2005年 | 16篇 |
| 2004年 | 13篇 |
| 2003年 | 16篇 |
| 2002年 | 13篇 |
| 2001年 | 4篇 |
| 1999年 | 6篇 |
| 1998年 | 5篇 |
| 1997年 | 6篇 |
| 1996年 | 11篇 |
| 1995年 | 12篇 |
| 1994年 | 11篇 |
| 1993年 | 7篇 |
| 1991年 | 7篇 |
| 1989年 | 4篇 |
| 1988年 | 4篇 |
| 1987年 | 4篇 |
| 1985年 | 11篇 |
| 1984年 | 8篇 |
| 1983年 | 9篇 |
| 1982年 | 5篇 |
| 1981年 | 15篇 |
| 1980年 | 8篇 |
| 1979年 | 8篇 |
| 1978年 | 6篇 |
| 1977年 | 9篇 |
| 1976年 | 7篇 |
| 1975年 | 9篇 |
| 1974年 | 7篇 |
| 1973年 | 9篇 |
| 1970年 | 3篇 |
| 1969年 | 3篇 |
| 1968年 | 3篇 |
| 1967年 | 3篇 |
排序方式： 共有790条查询结果，搜索用时 277 毫秒
61.
62.
63.
64.
65.
66.
67.
68.
69.
The Obama administration campaigned on the platform of increased transparency and access to government information after the limitations of the Bush years. As part of this focus on transparency, the Obama administration is emphasizing the use of e-government and new social media services to open up access to government. This paper explores the considerations and challenges of this approach, such as the inclusion of members of the public with limited access to the internet, the use of non-governmental channels to disseminate government information, the permanence of digital-born government information, and the design of e-government. 相似文献
70.
Andrea L. Chapman Laura C. Morgan Gerald Gartlehner 《Health information and libraries journal》2010,27(1):22-27
Background: To minimise retrieval bias, manual literature searches are a key part of the search process of any systematic review. Considering the need to have accurate information, valid results of the manual literature search are essential to ensure scientific standards; likewise efficient approaches that minimise the amount of personnel time required to conduct a manual literature search are of great interest. Objective: The objective of this project was to determine the validity and efficiency of a new manual search method that utilises the scopus ? database. Methods: We used the traditional manual search approach as the gold standard to determine the validity and efficiency of the proposed scopus method. Outcome measures included completeness of article detection and personnel time involved. Using both methods independently, we compared the results based on accuracy of the results, validity and time spent conducting the search, efficiency. Results: Regarding accuracy, the scopus method identified the same studies as the traditional approach indicating its validity. In terms of efficiency, using scopus led to a time saving of 62.5% compared with the traditional approach (3 h versus 8 h). Conclusions: The scopus method can significantly improve the efficiency of manual searches and thus of systematic reviews. 相似文献