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   66篇
  免费   3篇
各国政治   4篇
工人农民   3篇
世界政治   3篇
法律   45篇
政治理论   13篇
综合类   1篇
  2023年   2篇
  2020年   3篇
  2019年   2篇
  2018年   4篇
  2017年   1篇
  2016年   3篇
  2015年   1篇
  2014年   4篇
  2013年   5篇
  2012年   3篇
  2011年   2篇
  2010年   4篇
  2009年   3篇
  2008年   4篇
  2007年   3篇
  2006年   2篇
  2005年   3篇
  2003年   1篇
  2002年   2篇
  2001年   1篇
  2000年   1篇
  1995年   1篇
  1985年   2篇
  1984年   1篇
  1982年   1篇
  1980年   4篇
  1977年   1篇
  1972年   1篇
  1965年   1篇
  1964年   2篇
  1963年   1篇
排序方式: 共有69条查询结果,搜索用时 15 毫秒
41.
Despite attention to the role of gangs in urban gun violence, much remains to be learned about the spatial distribution and consequences of residential gang membership. This study uses data from St. Louis to examine the effects of resident gang membership on rates of gun assault. We also consider whether gun violence is conditioned by the level of gang membership in surrounding communities. As anticipated, communities with the highest number of gang members also have the highest rates of gun assault. However, much of the impact of gang membership on gun assaults extends outside of the boundaries of gang neighborhoods, especially those neighborhoods with few or no gang members. The number of gang members in surrounding neighborhoods has no discernible effect on gun assaults in communities with higher rates of gang membership. Finally, controlling for the spatial proximity of residential gang membership helps to account for some of the association between neighborhood disadvantage and gun assaults.  相似文献   
42.
This article considers one of the most curious outcomes of Idi Amin's military dictatorship—the ‘accidental liberation’ of Ugandan women. By expelling the Asian population in late 1972, Amin inadvertently opened up a new economic space for urban women. Whether they were forced to engage in petty trade out of necessity or because they received a shop ‘abandoned’ by the departing Asians, numerous women fondly remembered Amin as the one who ‘taught us how to work’. For the first time, they gained access to financial resources and decision-making power. Despite the economic windfall, many women continued to suffer the brutal realities of a harsh military dictatorship. Thus, for most women in Uganda, liberation was partial at best.  相似文献   
43.

Objective

The study of gang members is closely linked to the self-nomination method. It is timely to revisit the criterion validity of self-nomination, as recent theoretical and empirical advancements in gang disengagement necessitate further differentiating current from former gang members. This study assessed differences in gang embeddedness—a construct that taps individual immersion within deviant social networks—across three groups: current gang members, former gang members, and those individuals who have never joined a gang.

Methods

Data gathered in 2011 from a high-risk sample of 621 individuals in five cities were used to assess the validity of the self-nomination method. Standardized differences in a mixed graded response model of gang embeddedness were evaluated across the three statuses of gang membership.

Results

Self-nomination was strongly related to embeddedness in gangs, even after controlling for demographic, theoretical, and gang-related factors. The strongest predictor of gang embeddedness was self-nomination as a current or a former gang member, although current gang members maintained levels of gang embeddedness about one standard deviation greater than former gang members. Self-nomination was also the primary determinant of gang embeddedness for males, females, whites, blacks, and Hispanics.

Conclusion

The results of this study provide strong evidence in support of the use of self-nomination to differentiate between non-gang and gang members as well as current and former gang members, adding to a body of research demonstrating that self-nomination is a valid measure of gang membership.  相似文献   
44.
45.
This paper reports on a randomized experiment to study the impact of an alternative teacher preparation program, Teach for America (TFA), on student achievement and other outcomes. We found that TFA teachers had a positive impact on math achievement and no impact on reading achievement. The size of the impact on math scores was about 15 percent of a standard deviation, equivalent to about one month of instruction. The general conclusions did not differ substantially for subgroups of teachers, including novice teachers, or for subgroups of students. We found no impacts on other student outcomes such as attendance, promotion, or disciplinary incidents, but TFA teachers were more likely to report problems with student behavior than were their peers. The findings contradict claims that such programs allowing teachers to bypass the traditional route to the classroom harm students. © 2006 by the Association for Public Policy Analysis and Management  相似文献   
46.
47.
This article uses gun seizure data from the gun lab of the St. Louis Police Department to examine a problem-solving approach to seizing illegal firearms. Further, it explores narrative data from the police reports to understand the context surrounding 113 firearms seizure. The most important findings are that most illegal firearms are seized by the police department in the course of routine patrol, and that many seemingly nonviolent technical law violations (e.g., the unlawful carrying, use, or concealment of a firearm) often occur under violent circumstances. Given the paucity of gun research, future studies should use multiple data sources to further explain the gun/crime relationship. These findings are discussed in the context of routine policing.  相似文献   
48.
49.
Despite recent efforts to examine and understand female gang membership, the research literature lacks a complete picture of how gender and gang membership work to shape perceptions of the structural characteristics of gangs, gang values, and gang activities. A questionnaire was administered to 103 youths (seventy-four male and twenty-nine female juvenile detainees) in St. Louis, Missouri, to disentangle the effects of gender and gang membership on perceptions of values, activities, and organizational characteristics of gangs. Gang members differed from nongang members more than males from females. This suggests that gender alone may not be able to account for differential perceptions of gang and nongang youth and that underlying social processes affect both groups.  相似文献   
50.
The number of Canadian university presidents terminated by their Boards of Governors has increased dramatically. Examining this phenomenon requires situating it in its historical context, yet there has been little empirical work. This study examines the total length of service and the average years of experience of presidents at 102 Canadian institutions. The analysis runs from 1840 until 2011 and shows that presidents spend much less time in office than was historically the case. The percentage of women serving in these roles increased during the 1980s reaching approximately 20% in the mid‐1990s and has since remained at that level. The recent increase in terminations and early departures are discussed in light of the changing nature of the university presidency.  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