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   727篇
  免费   31篇
各国政治   44篇
工人农民   73篇
世界政治   63篇
外交国际关系   29篇
法律   368篇
中国政治   7篇
政治理论   168篇
综合类   6篇
  2023年   10篇
  2022年   3篇
  2021年   2篇
  2020年   9篇
  2019年   20篇
  2018年   25篇
  2017年   24篇
  2016年   24篇
  2015年   27篇
  2014年   15篇
  2013年   96篇
  2012年   23篇
  2011年   14篇
  2010年   22篇
  2009年   20篇
  2008年   39篇
  2007年   36篇
  2006年   26篇
  2005年   30篇
  2004年   27篇
  2003年   20篇
  2002年   11篇
  2001年   16篇
  2000年   12篇
  1999年   18篇
  1998年   12篇
  1997年   9篇
  1996年   18篇
  1995年   19篇
  1994年   12篇
  1993年   18篇
  1992年   8篇
  1991年   10篇
  1990年   11篇
  1989年   8篇
  1988年   13篇
  1987年   6篇
  1986年   4篇
  1985年   5篇
  1984年   4篇
  1982年   2篇
  1981年   6篇
  1980年   3篇
  1979年   5篇
  1978年   3篇
  1976年   3篇
  1975年   3篇
  1974年   3篇
  1971年   1篇
  1969年   1篇
排序方式: 共有758条查询结果,搜索用时 15 毫秒
91.
This article reviews four areas of pediatric research in which we have identified questionable levels of allowable risk, exceeding those foreseen by the Commission. They are the following: (1) the categorization of increasingly risky interventions as minimal risk in a variety of protocols; (2) the increasing number of applications for federal panel review of research not otherwise approvable because of higher projected risk levels; (3) research on asymptomatic at risk children; and (4) the inclusion of children and adolescents in placebo-controlled trials for participants of all ages without performing subgroup analysis. While embracing the imperative to include children in research is an encouraging step towards providing the pediatric population with effective medical care and finally eradicating the therapeutic orphan, we must ensure that this research does not become overly permissive.  相似文献   
92.
93.
This article reports outcomes from a program of experimental research evaluating the risk principle in drug courts. Prior studies revealed that participants who were high risk and had (a) antisocial personality disorder or (b) a prior history of drug abuse treatment performed better in drug court when scheduled to attend biweekly judicial status hearings in court. In contrast, participants who were low risk performed equivalently regardless of the court hearings schedule. This study prospectively matches drug court clients to the optimal schedule of court hearings based on an assessment of their risk status and compares outcomes to clients randomly assigned to the standard hearings schedule. Results confirmed that participants who were high risk and matched to biweekly hearings had better during-treatment outcomes than participants assigned to status hearings as usual. These findings provide confirmation of the risk principle in drug courts and yield practical information for enhancing the efficacy and cost-efficiency of drug courts.  相似文献   
94.
Animal abundance estimation procedures including a new method of Zelterman are applied in the criminological context of auto theft in the Australian Capital Territory. Using goodness-of-fit statistics and comparing the estimates with known clearance rates, it is estimated that during 1987 about 39% of offenders were charged with at least one count of auto theft. The results also indicate the extent of overrepresentation of juveniles in court statistics compared with their relative participation rate in auto theft.  相似文献   
95.
This paper models the increase in the participation rate of criminal behavior as either the initiation rate or the career length of criminals changes in response to increases in unemployment. Even with large instantaneous increases in unemployment, the models show a very slow increase in the criminal participation rate, giving a possible explanation of the failure of many studies to demonstrate a link between unemployment and crime levels.  相似文献   
96.
97.
98.
99.
100.
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