首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   418篇
  免费   13篇
各国政治   16篇
工人农民   36篇
世界政治   29篇
外交国际关系   21篇
法律   217篇
中国政治   7篇
政治理论   102篇
综合类   3篇
  2023年   4篇
  2022年   3篇
  2020年   7篇
  2019年   4篇
  2018年   13篇
  2017年   12篇
  2016年   8篇
  2015年   11篇
  2014年   5篇
  2013年   54篇
  2012年   10篇
  2011年   12篇
  2010年   13篇
  2009年   8篇
  2008年   21篇
  2007年   12篇
  2006年   12篇
  2005年   18篇
  2004年   7篇
  2003年   9篇
  2002年   9篇
  2001年   9篇
  2000年   13篇
  1999年   5篇
  1998年   12篇
  1997年   9篇
  1996年   4篇
  1995年   5篇
  1994年   4篇
  1993年   7篇
  1992年   7篇
  1991年   6篇
  1990年   8篇
  1989年   3篇
  1988年   5篇
  1987年   6篇
  1986年   7篇
  1985年   13篇
  1984年   3篇
  1983年   3篇
  1982年   9篇
  1981年   6篇
  1976年   5篇
  1975年   3篇
  1973年   4篇
  1971年   4篇
  1970年   2篇
  1969年   2篇
  1968年   3篇
  1966年   2篇
排序方式: 共有431条查询结果,搜索用时 15 毫秒
161.
162.
163.
Some suggest that affirmative action has contributed to the widening gap between better-off and worse-off blacks. Analyses of census data challenge the claim.  相似文献   
164.
165.
Immunoassay kits for urine cocaine (and metabolite) screening, obtained from two commercial sources, were examined for correlation of their results, expressed in terms of equivalent benzoylecgonine concentration, with the gas chromatography/mass spectrometry (GC/MS) concentration of benzoylecgonine. The correlation coefficients obtained, based on 62 (out of a total sample population of 3295) highly relevant samples, were 0.467 and 0.766 for Abuscreen (ARIA) and TDx (TDX), respectively. The preliminary screen cutoff values, which correspond to 150 ng/mL benzoylecgonine (as determined by GC/MS), were calculated based on the resulting regression equations and found to be 380 and 190 ng/mL for ARIA and TDX, respectively. With these cutoff values, ARIA generates 5 false negatives and 16 unconfirmed presumptive positives, while TDX results in 3 false negatives and 6 unconfirmed presumptive positives.  相似文献   
166.
As part of a 1978 national study of parole, the roles of halfway houses for criminal offenders were examined. It was found that the number of halfway houses began to expand rapidly in the 1960s, and that both services and types of clientele proliferated in the 1970s. Three underlying assumptions of halfway houses were examined, and a topology of houses was developed. It was concluded that halfway houses may be as effective as any other parole program and strategy and may be more cost effective at this time. Future research should further clarify and expand on types of houses and their treatment modalities, linking treatment outcomes to recidivism and reintegration, as well as on including more adequate comparison groups.  相似文献   
167.
168.
The relationship between self-report and official measures of crime remains unclarified. Adequate examinations of the comparability of the two measures have been limited because of the difficulty of obtaining both official and self-report data on the same subjects. In the present study, the authors use police records and self-report data on police contacts for members of a birth cohort, and find a substantial level of agreement between the two data sources. However, by incorporating data on police contact seriousness and a variety of demographic characteristics, the authors find some evidence of under- and over-reporting by various groups of cohort members. The authors suggest reasons for both the over- and under-reporting, and offer suggestions for future research.  相似文献   
169.
This article offers an assessment of zero-base budgeting (ZBB) derived from a field study conducted by the Urban Institute and supported by the National Science Foundation. Four cities and four states participated in the study, and several hundred public officials were interviewed.  相似文献   
170.
Journal of Experimental Criminology - Project Safe Neighborhoods (PSN) is an increasingly popular violence and gun crime prevention program which aims to identify prolific violent offenders, and...  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号