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   396篇
  免费   16篇
各国政治   15篇
工人农民   22篇
世界政治   29篇
外交国际关系   28篇
法律   199篇
中国政治   5篇
政治理论   109篇
综合类   5篇
  2023年   4篇
  2022年   3篇
  2021年   5篇
  2020年   7篇
  2019年   10篇
  2018年   13篇
  2017年   16篇
  2016年   15篇
  2015年   12篇
  2014年   12篇
  2013年   69篇
  2012年   15篇
  2011年   10篇
  2010年   6篇
  2009年   9篇
  2008年   12篇
  2007年   17篇
  2006年   11篇
  2005年   16篇
  2004年   16篇
  2003年   7篇
  2002年   5篇
  2001年   6篇
  2000年   11篇
  1999年   5篇
  1998年   2篇
  1997年   3篇
  1996年   4篇
  1995年   7篇
  1994年   7篇
  1993年   4篇
  1992年   4篇
  1991年   4篇
  1990年   4篇
  1989年   10篇
  1988年   10篇
  1987年   4篇
  1986年   7篇
  1984年   4篇
  1983年   3篇
  1982年   3篇
  1980年   2篇
  1979年   3篇
  1978年   2篇
  1976年   3篇
  1975年   2篇
  1970年   1篇
  1969年   1篇
  1968年   1篇
  1967年   2篇
排序方式: 共有412条查询结果,搜索用时 15 毫秒
51.
52.
53.
54.
55.
Hate crimes are motivated by perpetrators' prejudice toward targets' group. To examine individuals' attitudes toward hate crime perpetrators and targets, participants responded to vignettes of court cases in which the victim's group membership was varied. Results showed that participants recommended more severe sentences for perpetrators when the targets of their crimes were not White males or White females and reported those crimes as more closely fitting the definition of "hate crime." These results show that participants consider penalty enhancements appropriate for hate crimes and that they do not consider crimes against women to be hate crimes, consistent with present hate crime legislation. These results have implications for the utility and support of hate crime legislation but may showcase the resistance to expanding the legislation to protect individuals of other groups, especially women.  相似文献   
56.
57.

Purpose

This article provides a critical review of the state of research on the gang membership-violent victimization relationship.

Methods

This study examines a comprehensive list of published quantitative studies that have assessed the relationship between gang membership and violent victimization.

Results

By examining strengths and weaknesses of the design features of various studies, this article identifies theoretical, conceptual, methodological, and statistical issues that should be considered when interpreting the causal effect of gang membership on violent victimization. Some of the methodological and design issues discussed include, but are not limited to, consequences of failing to establish temporal order, failure to conduct sensitivity analyses to determine treatment effects, use of bootstrapping methods with propensity score analysis, measurement of violent victimization, and corrections for dependence in matched samples of gang and non-gang members.

Conclusion

Suggestions for future research are provided that will help advance the empirical study of the gang membership-violent victimization nexus.  相似文献   
58.
Sexual misconduct has emerged as a widespread problem throughout the criminal justice system as indicated by law enforcement officer sexual assault incidents in various cities and the findings of the recent National Prison Rape Elimination Act Research Commission. Through multivariate statistical analysis of data from two Department of Defense-wide surveys (2002 and 2006), this paper examines the indicators and cofounders of sexism, sexual harassment, and sexual assault with attention to change during the study period. Findings inform a suggested anticipatory model for prevention and intervention in military settings that, based on shared characteristics such as male dominance and authoritarian culture, provide an approximate reference context for criminal justice sexual misconduct best practices consideration.  相似文献   
59.
New data show that between 1982 and 2007, in over 60 countries governments were linked to and cooperated with informal armed groups within their own borders. Given the prevalence of these linkages, we ask how such links between governments and informal armed groups influence the risk of repression. We draw on principal-agent arguments to explore how issues of monitoring and control help understanding of the impact of militias on human rights violations. We argue that such informal agents increase accountability problems for the governments, which is likely to worsen human rights conditions for two reasons. First, it is more difficult for governments to control and to train these militias, and they may have private interests in the use of violence. Second, informal armed groups allow governments to shift responsibility and use repression for strategic benefits while evading accountability. Using a global dataset from 1982 to 2007, we show that pro-government militias increase the risk of repression and that the presence of militias also affects the type of violations that we observe.  相似文献   
60.
Nearly a decade ago, fentanyl reappeared in the United States illicit drug market. In the years since, overdose deaths have continued to rise as well as the amount of fentanyl seized by law enforcement agencies. Research surrounding fentanyl production has been beneficial to regulatory actions and understanding illicit fentanyl production. In 2017, the Drug Enforcement Administration (DEA) began collecting seized fentanyl samples from throughout the United States to track purity, adulteration trends, and synthetic impurity profiles for intelligence purposes. The appearance of a specific organic impurity, phenethyl-4-anilino-N-phenethylpiperidine (phenethyl-4-ANPP) indicates a shift in fentanyl production from the traditional Siegfried and Janssen routes to the Gupta-patent route. Through a collaboration between the DEA and the US Army's Combat Capabilities Development Command Chemical Biological Center (DEVCOM CBC), the synthesis of fentanyl was investigated via six synthetic routes, and the impurity profiles were compared to those of seized samples. The synthetic impurity phenethyl-4-ANPP was reliably observed in the Gupta-patent route published in 2013, and its structure was confirmed through isolation and structure elucidation. Organic impurity profiling results for illicit fentanyl samples seized in late 2021 have indicated yet another change in processing with the appearance of the impurity ethyl-4-anilino-N-phenethylpiperidine (ethyl-4-ANPP). Through altering reagents traditionally used in the Gupta-patent route, the formation of this impurity was determined to occur through a modification of the route as originally described in the Gupta patent.  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