全文获取类型
收费全文 | 931篇 |
免费 | 43篇 |
专业分类
各国政治 | 44篇 |
工人农民 | 48篇 |
世界政治 | 87篇 |
外交国际关系 | 52篇 |
法律 | 398篇 |
中国共产党 | 1篇 |
中国政治 | 4篇 |
政治理论 | 334篇 |
综合类 | 6篇 |
出版年
2023年 | 5篇 |
2021年 | 5篇 |
2020年 | 20篇 |
2019年 | 15篇 |
2018年 | 18篇 |
2017年 | 20篇 |
2016年 | 24篇 |
2015年 | 20篇 |
2014年 | 21篇 |
2013年 | 114篇 |
2012年 | 8篇 |
2011年 | 27篇 |
2010年 | 18篇 |
2009年 | 23篇 |
2008年 | 27篇 |
2007年 | 36篇 |
2006年 | 29篇 |
2005年 | 33篇 |
2004年 | 33篇 |
2003年 | 28篇 |
2002年 | 22篇 |
2001年 | 27篇 |
2000年 | 14篇 |
1999年 | 17篇 |
1998年 | 26篇 |
1997年 | 16篇 |
1996年 | 20篇 |
1995年 | 9篇 |
1994年 | 9篇 |
1993年 | 12篇 |
1992年 | 15篇 |
1991年 | 14篇 |
1990年 | 9篇 |
1989年 | 20篇 |
1988年 | 16篇 |
1987年 | 19篇 |
1986年 | 17篇 |
1985年 | 17篇 |
1984年 | 10篇 |
1983年 | 15篇 |
1982年 | 8篇 |
1981年 | 17篇 |
1980年 | 12篇 |
1979年 | 11篇 |
1978年 | 9篇 |
1977年 | 13篇 |
1976年 | 8篇 |
1975年 | 9篇 |
1972年 | 5篇 |
1968年 | 8篇 |
排序方式: 共有974条查询结果,搜索用时 15 毫秒
101.
102.
Alexander Pope Alison K. Cohen Catherine d.P. Duarte 《Journal of Public Affairs (14723891)》2019,19(1)
This paper explores the connections between education for youth civic engagement and theories and strategies from public health (specifically, epidemiology). We illustrate this with four applications of epidemiologic theory to youth civic engagement: social determinants and fundamental causes, vulnerable populations and cumulative disadvantage, positive spillover, and herd immunity and critical mass. Formalizing concepts of current civics, in schools and the public, as a civic epidemic, we present a case for individual‐ and group‐level interventions based around targeted, school‐based, effective civic education initiatives. Grounded in epidemiological theory, such approaches call attention to the simultaneous need to improve broad civics education and ensure that particular populations receive necessary attentions. 相似文献
103.
104.
105.
106.
107.
108.
109.
Irene M. Cohen 《Family Court Review》1998,36(1):41-53
The Joint Custody Symposium Project examined almost 600 court files in five judicial districts to investigate the common perception that joint custody contributes significantly to relitigation rates. Data indicated that joint custody as a factor accounted for only 10.8% of court returns. Financial concerns accounted for the majority of actions. Disputes over child custody appeared to be related to finances as well. Unfortunately, returns to court do not necessarily resolve the financial needs of divorced parents. The findings suggest that children may be used as pawns in court battles over money that are disguised as parenting concerns, as evidenced by the close relationship found between visitation or custody disputes and child support modification filings. 相似文献
110.
Wesley M. Cohen 《The Journal of Technology Transfer》2004,30(1-2):57-71
For over the past twenty years, the United States has witnessed a pro-patent movement. In response, numerous concerns have been raised, including possible impediments to innovation in cumulative technologies, emergence of anti-commons, barriers to entry and an elevation of costs of innovation associated with defensive patenting, growth in patent litigation and poor quality patents. Although there is little systematic evidence that these concerns have materialized in any substantial way, vigilance is nonetheless warranted. 相似文献