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   1295篇
  免费   72篇
各国政治   80篇
工人农民   74篇
世界政治   106篇
外交国际关系   114篇
法律   664篇
中国共产党   1篇
中国政治   20篇
政治理论   306篇
综合类   2篇
  2023年   15篇
  2022年   17篇
  2021年   44篇
  2020年   49篇
  2019年   63篇
  2018年   68篇
  2017年   63篇
  2016年   70篇
  2015年   52篇
  2014年   61篇
  2013年   215篇
  2012年   66篇
  2011年   54篇
  2010年   33篇
  2009年   49篇
  2008年   47篇
  2007年   54篇
  2006年   40篇
  2005年   20篇
  2004年   30篇
  2003年   25篇
  2002年   25篇
  2001年   22篇
  2000年   20篇
  1999年   10篇
  1998年   10篇
  1997年   12篇
  1996年   14篇
  1995年   12篇
  1994年   9篇
  1993年   11篇
  1992年   13篇
  1991年   8篇
  1990年   9篇
  1989年   6篇
  1988年   7篇
  1987年   3篇
  1986年   2篇
  1985年   2篇
  1984年   8篇
  1982年   3篇
  1981年   2篇
  1980年   3篇
  1979年   3篇
  1978年   3篇
  1977年   4篇
  1970年   1篇
  1969年   3篇
  1967年   1篇
  1966年   1篇
排序方式: 共有1367条查询结果,搜索用时 31 毫秒
991.
Most instruments used to assess offenders' risk of recidivism were developed and validated on male samples. Use of these instruments with female offenders is, however, common practice. This use with female offenders implies the assumption that the risk of recidivism can be predicted on the basis of the same risk factors for women as for men. Yet, this implied gender-neutrality of offender risk instruments has been the topic of much debate. This study compared criminogenic needs in male and female offenders and their relevance in predicting recidivism. A large sample of male and female offenders (N = 16,239) charged with a range of index offenses was studied. Results mainly support the gender neutrality of existing offender risk and needs assessment. However, results do suggest that some criminogenic needs may indeed have a different impact on recidivism for men and women. Problems with accommodation, education and work, and relationships with friends were more strongly correlated to general recidivism in men than in women. For women, difficulties with emotional well-being had a stronger correlation with recidivism than for men. In addition, relative to all other criminogenic needs, problems with emotional well-being were more important for women than for men in predicting general as well as violent recidivism. However, because the bivariate correlation for female offenders between emotional difficulties and recidivism is weak (as it is for male offenders), the question remains whether the relative importance of emotional difficulties in predicting recidivism in women actually has clinical relevance. (PsycINFO Database Record (c) 2012 APA, all rights reserved).  相似文献   
992.
Recent trends suggest that cocaine smugglers have become more and more inventive to avoid seizures of large amounts of cocaine transported between countries. We report a case of a mail parcel containing a dance pad which was seized at the Customs Department of Brussels Airport, Belgium. After investigation, the inside of the dance pad was found to contain a thick polymer, which tested positive for cocaine. Analysis was performed using a routine colorimetric swipe test, gas chromatography coupled with mass spectrometry and nuclear magnetic resonance spectroscopy. The polymer was identified as polyvinyl alcohol (PVA) and contained 18% cocaine, corresponding to a street value of € 20,000. Laboratory experiments showed that cocaine could be easily extracted from the PVA matrix. This case report reveals a new smuggling technique for the transportation of large amounts of cocaine from one country to another.  相似文献   
993.
Abstract: Two cases are reported from South Australia, where deaths occurred that were due to single self‐inflicted gunshot wounds to the head in individuals who were visiting indoor firearm ranges. Case 1: A 54‐year‐old man visiting an indoor firing range placed a .357 magnum handgun to his head and fired one shot. Case 2: A 23‐year‐old woman who was being instructed in firearm usage at an indoor firing range placed a 9 mm handgun to her head and fired one shot. In both cases, deaths were due to cerebral laceration with skull fracture. Firing ranges may be utilized by individuals who are seeking weapons for suicide attempts, and suicide may be successfully undertaken at such locations even while a victim is under direct supervision. In jurisdictions, where firearm ownership is strictly legislated, it may be that clubs can inadvertently provide access to firearms for this type of activity.  相似文献   
994.
Typological classification of human zygomaticomaxillary suture (ZMS) shape is often used in forensic assessment of ancestry, following earlier studies reporting higher frequencies of "angled" sutures among American Indians and higher frequencies of "curved" sutures among Caucasians. In this paper we present a new method of digital morphometrics to quantify and compare ZMS shape in 60 American Indian and 60 European crania. Suture outlines were recorded as three-dimensional (3D) contours on digital models of adult male and female crania created with a portable 3D laser scanner. Each contour was represented by about four hundred point coordinates, which were transformed via Fourier analysis into amplitude coefficients suitable for use in linear discriminant analysis. Discriminant functions were created that accurately predicted group membership for 83% of the crania in the sample, after leave-one-out cross-validation. The results were compared with traditional typological classifications based on visual evaluation of ZMS shape, and the contour-based method was found to be more effective than the typological approach. However, the distribution of ZMS types within the two sample groups did not conform to previously reported patterns. This discrepancy indicates that ZMS shape may reflect not only genetic factors, but also environmental factors such as diet and stress. In addition, some evidence for sexual dimorphism in the zygomaticomaxillary complex was observed. Based on these findings, we recommend caution when using ZMS shape analysis in forensic ancestry determination.  相似文献   
995.
Guided by conceptual and empirical work on emerging adulthood, this study investigated the role of closeness to mother and father and behavioral autonomy during adolescence on the development of adult-onset antisocial behavior. Using data from the National Longitudinal Study of Adolescent Health (Add Health), we identified four aggressive (abstainer, adolescent-limited, adult-onset, chronic) and three nonaggressive (adolescent-limited, adult-onset, chronic) trajectories. Members of the aggressive adult-onset trajectory reported higher levels of paternal closeness during adolescence compared to the members of the aggressive chronic trajectory. Maternal closeness and behavioral autonomy did not differentially predict trajectory membership. In addition, members of the adult-onset trajectories were less likely to be employed or in a romantic relationship and reported decreased physical health during emerging adulthood compared to members of all other trajectories.  相似文献   
996.

Objectives  

Examination of the relationship between military service and criminal conviction, and evaluation of its sensitivity through the use of two distinct study designs.  相似文献   
997.
Geoengineering—the deliberate interference in the climate system to affect global warming—could have significant global environmental and social implications. How to shape formal geoengineering governance mechanisms is an issue of debate. This paper describes and analyses the geoengineering governance landscape that has developed in the absence of explicit geoengineering regulation. An Earth System Governance perspective provides insight into the formation of norms resulting from an overlap in international treaties and from the actions of engaged non-state agents. Specifically, the paper explores the instruments and actors having effect in existing formal and informal geoengineering governance mechanisms. It finds that geoengineering is subject to a form of ‘governance-by-default’. This is due to a situation in which state actors have not resolved the tension between two legal norms: that of ‘precaution’ and that of ‘harm minimisation’. This governance-by-default is characterised by uneven regulation from existing multilateral agreements established for other purposes, an absence of regulation specifically focused on geoengineering, guidance from an international ambition to hold global average warming below 2 °C and to achieve net-zero emissions in the second half of the century, and strong normative engagement by the research community. Governance-by-default is likely to be a stopgap development until more enduring and focused governance emerges.  相似文献   
998.
A certain number of single‐vehicle crashes into stationary roadside objects such as trees are thought to be occult suicides. However, is it possible that some cases of multiple deaths within a family in similar crashes are due to unrecognized familial murder‐suicides? A 39‐year‐old woman and her 11‐year‐old daughter are reported who died of injuries following a vehicle impact with a tree. Unusual behavior of the mother leading up to the crash, and assessment at the scene, raised the possibility of this being a nonaccidental event. However, difficulties in retrospectively determining the intent of a driver in a vehicle crash, and the nonrecording of, or lack of separate coding for murder‐suicides on registers, make determination of the incidence of these types of events extremely difficult. It may be that this is a subcategory of murder‐suicide that is underdiagnosed and so is not being registered on central motor vehicle crash databases.  相似文献   
999.
This article seeks to understand how reported mediation rates in Chinese courts are produced and what they actually signify. It analyzes data obtained through prolonged fieldwork at a court in central China. The article finds that the court has directly responded to central level mediation incentives by enhancing its overall mediation rate. It has done so strategically by seeking the highest increase using the fullest discretion in the mediation incentive structure and seeking to optimize the highest rate at the lowest cost and risk to the court. This has undermined the objectives of the central level incentives toward mediation, while also drawing the courts' scarce resources away toward unnecessary mediation practices, in part far removed from the courtroom. The article concludes by drawing out broader theoretical conclusions about how information asymmetries, discretion, and goal displacement play out in hierarchical control structures of authoritarian courts.  相似文献   
1000.
Parties can challenge a judge (request a recusal) when they have reasons to believe that a judge is not impartial. In practice this procedure is sometimes abused by lawyers who, for example, want to delay proceedings. Countries have taken different measures to deter the improper use of the procedure to request a recusal, like fines for dismissed requests, or immediately dismissing evidently unfounded requests. In a laboratory experiment we examine the effects of a summary review whether a challenge is evidently unfounded, with or without fines. We find that a review without fine improves legal protection in practice as well as efficiency by reducing unfounded challenges and increasing challenges that have a substantial chance of success. Overall the number of challenges declines. With a fine, challenges decline, but also legal protection.  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