全文获取类型
收费全文 | 1415篇 |
免费 | 50篇 |
专业分类
各国政治 | 66篇 |
工人农民 | 61篇 |
世界政治 | 123篇 |
外交国际关系 | 78篇 |
法律 | 699篇 |
中国共产党 | 1篇 |
中国政治 | 46篇 |
政治理论 | 382篇 |
综合类 | 9篇 |
出版年
2021年 | 9篇 |
2020年 | 21篇 |
2019年 | 27篇 |
2018年 | 50篇 |
2017年 | 55篇 |
2016年 | 43篇 |
2015年 | 31篇 |
2014年 | 50篇 |
2013年 | 220篇 |
2012年 | 42篇 |
2011年 | 62篇 |
2010年 | 38篇 |
2009年 | 31篇 |
2008年 | 55篇 |
2007年 | 54篇 |
2006年 | 64篇 |
2005年 | 54篇 |
2004年 | 54篇 |
2003年 | 53篇 |
2002年 | 32篇 |
2001年 | 19篇 |
2000年 | 17篇 |
1999年 | 18篇 |
1998年 | 16篇 |
1997年 | 14篇 |
1996年 | 11篇 |
1995年 | 17篇 |
1994年 | 21篇 |
1993年 | 16篇 |
1992年 | 12篇 |
1991年 | 11篇 |
1990年 | 9篇 |
1989年 | 14篇 |
1988年 | 15篇 |
1987年 | 15篇 |
1986年 | 7篇 |
1985年 | 16篇 |
1984年 | 9篇 |
1983年 | 13篇 |
1982年 | 12篇 |
1981年 | 7篇 |
1979年 | 10篇 |
1978年 | 13篇 |
1977年 | 9篇 |
1976年 | 11篇 |
1975年 | 13篇 |
1974年 | 11篇 |
1973年 | 8篇 |
1972年 | 11篇 |
1967年 | 8篇 |
排序方式: 共有1465条查询结果,搜索用时 15 毫秒
171.
172.
173.
174.
175.
176.
177.
178.
d'Arlach L Olson BD Jason LA Ferrari JR 《Journal of prevention & intervention in the community》2006,31(1-2):121-131
This study explored the sense of community among women (n = 21) and women with children (n = 30) living in Oxford Houses, with emphasis on how the presence of children might affect the household. Sense of community did not vary between participants with more or less than three months residence. Residents reported very high levels of satisfaction with the home, possibly because of a ceiling effect of little room for increases in their sense of community over time. Participants reported that they were getting along with the children in the home, that mothers could count on babysitting help, and that the children had a positive effect on the household and their own recovery process. This effect did not differ between mothers and non-mothers, suggesting that non-mothers might view the children in the home with a sense of responsibility and sensitivity comparable to that of the mothers. Implications are discussed. 相似文献
179.
Davis MI Olson BD Jason LA Alvarez J Ferrari JR 《Journal of prevention & intervention in the community》2006,31(1-2):3-12
In this paper, we review the result of research conducted in the context of a 13-year collaborative partnership between DePaul University and a community-based, self-run, residential substance abuse recovery program called Oxford House. This collaborative effort highlights several examples of the research and action activities fostering a positive alliance that benefited both the research team and the Oxford House community. It also proposed practical guidelines for developing effective action research collaboratives that may be helpful to others who desire to cultivate and maintain similar mutually beneficial partnerships; including such processes as the development of trust, respecting the personal experiences of the community members and group, commitment to serving the community, validating findings with organization members, and accountability. 相似文献
180.
An evaluation of matching unknown writing inks with the United States International Ink Library 总被引:2,自引:0,他引:2
Laporte GM Arredondo MD McConnell TS Stephens JC Cantu AA Shaffer DK 《Journal of forensic sciences》2006,51(3):689-692
Utilizing a database of standards for forensic casework is a valuable resource. Undoubtedly, as more standards (and corresponding information about the specimens) are collected, there is a greater certainty of identification when a questioned and a known item cannot be distinguished after a series of analyses. The United States Secret Service and the Internal Revenue Service National Forensic Laboratory jointly maintain the largest known forensic collection of writing inks in the world, which is comprised of over 8500 ink standards collected worldwide, dating back to the 1920s. This study was conducted to evaluate the reliability of matching arbitrarily purchased pens with known inks from a database. One hundred pens were randomly obtained from a variety of sources and their respective ink compositions were compared with standards. Eighty-five of the inks were determined to be suitable for comparison utilizing optical examinations and thin-layer chromatography. Three of the inks did not match any of the specimens on record; one of these inks was similar to an ink from an identical brand of pen that was in the database, but had a modified formulation. 相似文献