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   911篇
  免费   45篇
各国政治   101篇
工人农民   33篇
世界政治   93篇
外交国际关系   52篇
法律   419篇
中国共产党   1篇
中国政治   8篇
政治理论   244篇
综合类   5篇
  2023年   4篇
  2022年   4篇
  2021年   5篇
  2020年   18篇
  2019年   24篇
  2018年   23篇
  2017年   28篇
  2016年   34篇
  2015年   33篇
  2014年   31篇
  2013年   151篇
  2012年   22篇
  2011年   22篇
  2010年   25篇
  2009年   17篇
  2008年   26篇
  2007年   25篇
  2006年   37篇
  2005年   35篇
  2004年   29篇
  2003年   33篇
  2002年   41篇
  2001年   12篇
  2000年   17篇
  1999年   16篇
  1998年   21篇
  1997年   18篇
  1996年   14篇
  1995年   8篇
  1994年   16篇
  1993年   19篇
  1992年   16篇
  1991年   12篇
  1990年   7篇
  1989年   11篇
  1988年   18篇
  1987年   6篇
  1986年   4篇
  1985年   4篇
  1984年   8篇
  1982年   6篇
  1981年   6篇
  1980年   4篇
  1979年   8篇
  1978年   8篇
  1976年   3篇
  1975年   4篇
  1973年   3篇
  1972年   3篇
  1968年   3篇
排序方式: 共有956条查询结果,搜索用时 15 毫秒
951.
This article presents for the first time an outline of a classified review of the many types (some 20) of public policy inquiry or review exercises used in British public affairs. They are mainly created by the government but are also increasingly promoted by private bodies hoping to influence government and the established specialist interests in a policy field by supplying free and authoritative information and recommendations. A brief commentary on each of these ‘decision advice processes’ (DAPs) draws out their changing profile and questions the democratic propriety of the executive itself now investigating or reviewing important public policy issues which were, until quite recently, unquestioningly given out by departments for external and (normally) independent‐minded commissions and committees of inquiry to study and recommend upon. The question of whether the current movement for constitutional reform should include the overall ‘decision advice process’ and place it on a more independent and authoritative basis is raised. A parliamentary, rather than (or as well as) an executive, basis for most official ‘DAPs’ is proposed, while the currently flourishing practice of charitable foundations, think‐tanks and established interest groups promoting unofficial DAPs for the information and guidance of the government, parliament and the public is endorsed.  相似文献   
952.
Journal of Quantitative Criminology - Prior meta analyses of hot spots policing show that the approach reduces crime, but report relatively small mean effect sizes based on Cohen’s d. The...  相似文献   
953.
The idea that “institutional thickness” is an important component for the resilience of local economies continues to attract attention several years after the seminal work on the subject by Amin and Thrift (1994). In Melbourne's northern suburbs, one manufacturing sector has recently seen significant job growth. Coinciding with this trend is the emergence of regional economic development bodies. Have they influenced the performance and operation of firms? Results from interviews with firm managers suggest not, with non-institutional factors predominating. This “business as usual” scenario suggests local economic development strategies have limitations.  相似文献   
954.
The objective of this study was to assess whether targeting new gun buyers with a public safety message aimed at improving gun law awareness can modify gun purchasers’ behaviors. Between May 2007 and September 2008, 2,120 guns were purchased in two target neighborhoods of the City of Los Angeles. Starting in August 2007, gun buyers initiating transactions on odd-numbered days received a letter signed by prominent law enforcement officials, indicating that law enforcement had a record of their gun purchase and that the gun buyer should properly record future transfers of the gun. The letters arrived during buyers’ 10-day waiting periods, before they could legally return to the store to collect their new gun. Subsequent gun records were extracted to assess the letter’s effect on legal secondary sales, reports of stolen guns, and recovery of the gun in a crime. An intent-to-treat analysis was also conducted as a sensitivity check to remedy a lapse in the letter program between May and August 2007. The letter appears to have no effect on the legal transfer rate or on the short-term rate of guns subsequently turning up in a crime. However, we found that the rate at which guns are reported stolen for those who received the letter is more than twice the rate for those who did not receive the letter (p value = 0.01). Those receiving the letter reported their gun stolen at a rate of 18 guns per 1,000 gun-years and those not receiving the letter reported their gun stolen at a rate of 7 guns per 1,000 gun-years. Of those receiving the letter, 1.9% reported their gun stolen during the study period compared to 1.0% for those who did not receive the letter. The percentage of guns reported stolen in these neighborhoods is high, indicating a high rate of true gun theft, a regular practice of using stolen-gun reports to separate the gun buyer from future misuse of the gun, or some blend of both. Simple, targeted gun law awareness campaigns can modify new gun buyers’ behaviors. Additional follow-up or modifications to this initiative might be needed to impact the rate at which guns enter the illegal gun market and ultimately are recovered in crimes.  相似文献   
955.
Routine activities theory has not fully considered the role of gender in shaping victimization and yet, the research literature clearly demonstrates that gender is associated with an individual's risk of victimization. In addition to the pervasive effect of gender on victimization, gender shapes an individual's daily routines and thus may create a gender-specific relationship with victimization. This article explores the importance of gender in understanding the relationship between student's participation in extracurricular routine activities (e.g., student government, clubs, sports, and etc.) and the risk of victimization. From the Education Longitudinal Study of 2002, a sample of 10th-grade students was drawn for analyses. Hierarchical Generalized Linear Modeling was employed to explore the role of gender in the relationship between extracurricular routine activities and victimization at school. The results reveal that students' gender indeed interacts with several of the extracurricular routine activities creating gender-specific risks of victimization. This article highlights the importance of gender in explaining victimization and suggests researchers should consider how gender may interact with other routine activities and victimization.  相似文献   
956.
We report here a 5-year retrospective review of autopsy cases from the New York City Medical Examiner's Office that demonstrated phencyclidine (PCP) in the blood. There were a total of 138 cases. There were 52 deaths because of mixed drug intoxication: the blood PCP concentrations in these cases ranged from <1 to 598 ng/mL. There were 80 violent deaths in which PCP was quantified in the blood but was unrelated to the cause of death. There were five nonviolent deaths in which PCP exclusively was detected. In four of these, there were preexisting medical conditions that could also have contributed to death. In these, the highest PCP concentration was 361.3 ng/mL, a concentration lower than seven of the individuals in our violent death category. This suggests that lower concentrations may be fatal with comorbid conditions.  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