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   640篇
  免费   23篇
各国政治   32篇
工人农民   39篇
世界政治   68篇
外交国际关系   36篇
法律   355篇
中国政治   6篇
政治理论   126篇
综合类   1篇
  2023年   4篇
  2021年   5篇
  2020年   12篇
  2019年   23篇
  2018年   18篇
  2017年   18篇
  2016年   29篇
  2015年   14篇
  2014年   13篇
  2013年   92篇
  2012年   17篇
  2011年   14篇
  2010年   10篇
  2009年   21篇
  2008年   14篇
  2007年   19篇
  2006年   16篇
  2005年   20篇
  2004年   18篇
  2003年   15篇
  2002年   21篇
  2001年   19篇
  2000年   17篇
  1999年   20篇
  1998年   13篇
  1997年   12篇
  1996年   6篇
  1995年   8篇
  1994年   7篇
  1993年   5篇
  1992年   8篇
  1991年   9篇
  1990年   9篇
  1989年   8篇
  1988年   7篇
  1987年   8篇
  1986年   11篇
  1985年   4篇
  1984年   11篇
  1983年   11篇
  1982年   6篇
  1981年   8篇
  1980年   6篇
  1979年   7篇
  1977年   3篇
  1976年   4篇
  1975年   4篇
  1974年   3篇
  1969年   2篇
  1968年   3篇
排序方式: 共有663条查询结果,搜索用时 15 毫秒
611.
612.
C1-C2 vertebral dislocations have not been commonly recognized at autopsy. Among 66 subjects with neck injuries, drawn from a series of 155 traffic fatalities, were 14 with injuries at the level of the atlantoaxial motion segment, ranging in age from 8 months to 93 years. Thirteen had sprains or lacerations of the atlantoaxial facet joints, and one had a healed C1 fracture. Six of the 14 had odontoid fractures. None had transverse ligament lacerations. Injuries of the alar ligaments and the tectorial membrane were frequent. Only 3 subjects had subaxial cervical injury. All 14 had evidence of impact to the head or neck. Four had fractures of the mandible or facial bones, and 5 had skull fractures. Subdural and subarachnoid hemorrhages were found in 7 and 6, respectively. Brainstem lacerations were not uncommon, but only one had a pontomedullary laceration. Spinomedullary cord injuries occurred in 5. Acute neurogenic shock was the major mechanism of death in 9 of the 14, including 5 with major cardiovascular lacerations. Delayed effects of craniocerebral trauma accounted for the majority of the remainder. The biomechanical mechanisms are discussed.  相似文献   
613.
Through a 1979 survey of 89 Illinois judges, the present study attempts to assess how various social, political, and occupational factors influence judicial attitudes toward criminal sanctioning. Specifically, our analysis examined the relative impact of background characteristics (e.g. age, community context) versus occupational variables (e.g., years on the bench, former prosecutor and/or defense attorney) on five sanctioning scales: rehabilitation, punishment, capital punishment, punishing white-collar offenders, and the treatment of juvenile delinquents. The analysis revealed that political orientation was the most important variable examined. Political ideology was found to be related to all but one of the sanctioning scales (punishing white-collar offenders). In contrast, the social and occupational variables generally were not significantly related to judicial attitudes on the purposes of sentencing.  相似文献   
614.
615.
The objective of this article is to find middle ground between the supporters and opponents of biotechnology by perpetuating the existing legal compromise pertaining to the complete range of health and welfare doctrines relevant to the biotechnological industry. The author aspires neither to add to nor detract from this liberal democratic consensus, but to preserve its constitutive balance between positivism and natural law and over-regulation and under-regulation in the hopes of stabilizing new political fault lines developing around the few biotechnological innovations already grabbing headlines. The most feasible solution is to extend the existing liberal democratic compromise with respect to equal protection, reproductive rights, the First Amendment, human subject experimentation, patent law, and parental rights. This includes banning or monopolizing certain biotechnologies and extending substantive special respect to the ex vivo living human embryo. Biotechnology must not be left to regulate itself.  相似文献   
616.
617.
This paper describes the method of osteometric sorting. Osteometric sorting is the formal use of size and shape to sort bones from one another. The method relies heavily on measurement data and statistical models and is designed to maximize objectivity. The goal of this paper is to validate the use of osteometric sorting and to provide case examples of its utility. Selected regression models are also presented for use with osteometric sorting. We advocate this technique as one tool among many in the anthropologist's toolkit for sorting commingled skeletal remains.  相似文献   
618.
619.
A rapid method for screening drug seizure samples for 3,6-diacetylmorphine (heroin), which consists of a simple hydrolysis procedure and flow-injection analysis with two chemiluminescence reagents, is described. Before hydrolysis, 3,6-diacetylmorphine evokes an intense response with a tris(2,2'-bipyridyl)ruthenium(III) reagent (prepared by dissolving the perchlorate salt in acetonitrile), and a relatively weak chemiluminescence response with a second reagent: potassium permanganate in an aqueous acidic polyphosphate solution. However, the permanganate reagent is extremely sensitive toward the hydrolysis products of 3,6-diacetylmorphine (i.e., 6-monoacetylmorphine and morphine). Some compounds commonly found in drug laboratories may cause false positives with tris(2,2'-bipyridyl)ruthenium(III), but do not produce the markedly increased response with the permanganate reagent after the hydrolysis procedure. The combination of these two tests therefore provides an effective presumptive test for the presence of 3,6-diacetylmorphine, which we have verified with 14 samples obtained from a forensic science laboratory.  相似文献   
620.
Criminologists have long recognized that offending and victimization share common ground. Using Gottfredson and Hirschis general theory of crime, with its emphasis on self-control as a theoretical backdrop, we examine the extent to which self-control is related to both violent offending and homicide victimization. To examine this issue, we use 5-year post-parole data on violent offending and homicide victimization from a sample of parolees from the California Youth Authority. Using rare-events logistic regression models, results indicate that self-control is related to each outcome, but that other risk factors are also uniquely related to each outcome. The implications of this study for theory and future research are addressed.To whom correspondence should be addressed: Department of Criminology, Law and Society, University of Florida, P.O. Box 115950, 201 Walker Hall, Gainesville, FL 32611-5950; Phone: +1-352-392-1025, ext. 213; E-mail: apiquero@ufl.edu  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