全文获取类型
收费全文 | 8320篇 |
免费 | 335篇 |
专业分类
各国政治 | 443篇 |
工人农民 | 297篇 |
世界政治 | 695篇 |
外交国际关系 | 386篇 |
法律 | 4454篇 |
中国共产党 | 2篇 |
中国政治 | 66篇 |
政治理论 | 2238篇 |
综合类 | 74篇 |
出版年
2020年 | 111篇 |
2019年 | 145篇 |
2018年 | 192篇 |
2017年 | 223篇 |
2016年 | 220篇 |
2015年 | 174篇 |
2014年 | 181篇 |
2013年 | 1100篇 |
2012年 | 204篇 |
2011年 | 226篇 |
2010年 | 203篇 |
2009年 | 208篇 |
2008年 | 237篇 |
2007年 | 224篇 |
2006年 | 233篇 |
2005年 | 236篇 |
2004年 | 228篇 |
2003年 | 218篇 |
2002年 | 220篇 |
2001年 | 258篇 |
2000年 | 247篇 |
1999年 | 191篇 |
1998年 | 130篇 |
1997年 | 113篇 |
1996年 | 86篇 |
1995年 | 106篇 |
1994年 | 108篇 |
1993年 | 98篇 |
1992年 | 132篇 |
1991年 | 143篇 |
1990年 | 139篇 |
1989年 | 134篇 |
1988年 | 112篇 |
1987年 | 118篇 |
1986年 | 146篇 |
1985年 | 152篇 |
1984年 | 106篇 |
1983年 | 121篇 |
1982年 | 91篇 |
1981年 | 99篇 |
1980年 | 79篇 |
1979年 | 87篇 |
1978年 | 86篇 |
1977年 | 51篇 |
1976年 | 65篇 |
1975年 | 60篇 |
1974年 | 79篇 |
1973年 | 73篇 |
1972年 | 53篇 |
1969年 | 56篇 |
排序方式: 共有8655条查询结果,搜索用时 15 毫秒
951.
Neighborhood conservation is an objective widely espoused byAmerican cities. But movement from advocacy of conservationto allocation of funds for specific neighborhoods involves difficultpolitical choices for local officials who must respond to neighborhoodscompeting for scarce resources. The experience of Rochester,New York, the state's third largest city, closely parallelsthe national experienceshifts away from renewal and clearanceactivities to conservation and rehabilitation of marginal urbanneighborhoods. Over the first six years of the CDBG program,Rochester officials changed from a general, inclusive approachto neighborhood conservation to a more targeted approach. Thesechoices were shaped in response to local economic, demographicand political factors, including a well-organized network ofneighborhood organizations. The article concludes that the Rochesterexperience led to strengthened relationships between neighborhoodassociations and city hall, but evidence of stabilization andrevitalization in assisted city neighborhoods is inconclusive.
*The author gratefully acknowledges the comments by Paul R.Dommel, Christopher Lindley and Richard P. Nathan on an earlierdraft of this article. 相似文献
952.
953.
954.
955.
956.
957.
In August, 1972, the New York City Police Department promulgated administrative shooting guidelines and shooting incident review procedures far more restrictive than former statutory “defense of life” and “fleeing felon” justifications for police shooting. Using a data base that includes all reported New York City police firearms discharges and serious assaults on police between 1971 and 1975, this article examines the effects of the new guidelines and procedures on shooting frequencies, patterns, and consequences.Great decreases in “fleeing felon” shootings, “warning shots,” and shooting-opponent injuries and deaths were found to be associated with the new rules. This change also appeared to have a favorable effect on line-of-duty officer deaths and serious injuries. The implications of these findings are discussed. 相似文献
958.
959.
In a recent critique and elaboration of general strain theory, Agnew (2001) argued that criminal victimization might be among the most consequential strains experienced by adolescents, and therefore might be an important cause of delinquency. Few studies to date, however, had examined victimization as a potential cause—rather than outcome—of delinquency. This article addresses this void by examining predictions from general strain theory about the effects of victimization on later involvement in delinquency. The analyses indicated that violent victimization significantly predicted later involvement in delinquency, even when controlling for the individual's earlier involvement in delinquency. Moreover, general strain theory appears to be a useful theoretical framework for examining this relationship. The effects of victimization on delinquency were explained in part by its effects on anger (the key intervening variable specified by the theory). Partial support also emerged for the theory's hypothesis that the effects of strain should be conditional upon other factors. Specifically, the effects of victimization were marginally greater for juveniles with weak emotional attachment to their parents and significantly greater for those low in self-control. 相似文献
960.
James KurthAuthor Vitae 《Orbis》2003,47(2):337-349