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   960篇
  免费   52篇
各国政治   37篇
工人农民   60篇
世界政治   76篇
外交国际关系   55篇
法律   487篇
中国政治   15篇
政治理论   272篇
综合类   10篇
  2023年   11篇
  2022年   6篇
  2021年   14篇
  2020年   33篇
  2019年   23篇
  2018年   37篇
  2017年   42篇
  2016年   50篇
  2015年   35篇
  2014年   43篇
  2013年   140篇
  2012年   35篇
  2011年   23篇
  2010年   30篇
  2009年   43篇
  2008年   37篇
  2007年   53篇
  2006年   36篇
  2005年   43篇
  2004年   24篇
  2003年   35篇
  2002年   23篇
  2001年   17篇
  2000年   17篇
  1999年   13篇
  1998年   15篇
  1997年   9篇
  1996年   7篇
  1995年   10篇
  1994年   8篇
  1993年   6篇
  1992年   10篇
  1991年   5篇
  1990年   4篇
  1989年   5篇
  1988年   9篇
  1986年   5篇
  1985年   5篇
  1984年   4篇
  1983年   2篇
  1982年   7篇
  1981年   8篇
  1980年   2篇
  1979年   6篇
  1978年   2篇
  1977年   7篇
  1976年   2篇
  1975年   2篇
  1970年   3篇
  1968年   2篇
排序方式: 共有1012条查询结果,搜索用时 15 毫秒
311.
312.
Courthistories of 501 juvenile offenders prosecuted in adult court were followed as part of an effort to develop a point scale recommendation system for a large pretrial services agency. The point scale and two variations used criteria that predicted a warrant (failure to appear for one or more scheduled appearances) more accurately than when other traditional criteria used for adults were applied to this population. The juvenile offenders, although facing trial on charges of high severity, had lower warrant and recidivism rates during court processing than comparable samples of 16-year-old adult defendants. Implications are discussed for the efficacy of prosecuting juveniles in the adult system and the feasibility of separate pretrial recommendation systems to enable a higher proportion of reliable defendants to secure release pending trial.  相似文献   
313.
New war on waste     
Roston E 《Time》2002,160(9):A28-31, A34
  相似文献   
314.
Roston E 《Time》2002,159(14):52-54
  相似文献   
315.
Parents have long been able to influence the genetic composition of their children through their choice of a reproductive partner, if only very approximately. They are, however, increasingly able to determine the genetic make-up of their children in other, more precise ways, such as by selecting a particular gamete or embryo or by genetically modifying an embryo prior to artificial implantation. This Article discusses parents' obligations to their children and other members of the community stemming from their children's genes. In a just state, it argues, parents would be responsible for redressing any genetic disadvantage their children suffer as a result of parents' voluntary actions. Within the context of a liberal egalitarian account of distributive justice, this responsibility might most fairly be discharged through a compulsory insurance plan that provides compensation to genetically disadvantaged children when they might have had non-disadvantaged children instead would in some circumstances incur greater liability, because they could not fairly push the cost of their choices off on other members of the insurance pool. The Article also asks whether parents wrong a child by allowing it to be born with a genetic impairment when, had they taken steps to remove the impairment, the unimpaired child they had would have been a different person from the genetically disadvantaged child because the better-off child's capacities and experiences differed considerably from those that the disadvantaged child would have had. Contrary to many people's moral intuitions, the Article argues that parents do not wrong such a child. Nevertheless, parents remain morally obligated to bear any added costs occasioned by the child's impairment. Any other approach would allow them unjustly to shift the burden of their choices to other parents. Finally, the Article takes up the much debated question of whether parents harm a child by allowing it to be born with a life not worth living when they could have prevented its birth. It suggests that the answer to this question should be irrelevant to parents' legal liability. Acting on behalf of the parental insurance pool, the state may nonetheless adopt a variety of measures to help potential parents avoid giving birth to such children, which one can assume virtually all would prefer.  相似文献   
316.
Welch  Eric W.  Hibiki  Akira 《Policy Sciences》2002,35(4):401-424
Theoretical and empirical research on voluntarism has focused primarily on U.S. and European examples, but has generally failed to consider the Japanese system of voluntary environmental agreements. Nevertheless, Japanese VEAs are one of the worlds oldest experiments in voluntary policy; careful analysis of the characteristics and contexts may improve understanding about the critical factors associated with effective voluntary policy. This paper reviews the extant literature on voluntarism focusing specifically on the bargaining context within which agreements are negotiated. It details three factors that contribute to the effectiveness of voluntary policy generally: regulatory bargaining power, non-regulatory bargaining power and reciprocity. The paper then provides a brief but detailed analysis of the development of voluntary agreements in Japan. Comparisons with voluntary policies in the U.S. and Europe are included. Findings indicate similarities and some significant differences between the Japanese system and other national systems of voluntary policy. Conclusions discuss implications for theory and policy.  相似文献   
317.
The forensic community needs quick, reliable methods to quantitate human DNA in crime scene samples to replace the laborious and imprecise slot blot method. A real-time PCR based method has the possibility of allowing development of a faster and more quantitative assay. Alu sequences are primate-specific and are found in many copies in the human genome, making these sequences an excellent target or marker for human DNA. This paper describes the development of a real-time Alu sequence-based assay using MGB Eclipse primers and probes. The advantages of this assay are simplicity, speed, less hands-on-time and automated quantitation, as well as a large dynamic range (128 ng/microL to 0.5 pg/microL).  相似文献   
318.
STR-genotyping from human medieval tooth and bone samples   总被引:3,自引:0,他引:3  
We extracted the DNA contained in samples of bones and teeth from 10 skeletons excavated from the Gravette site (400-1000 AD, south of France). Ancient DNA was analysed by autosomal short tandem repeats (STRs). The DNA present in these ancient remains appeared very degraded, but nevertheless, better conserved in tooth than in bone samples. Moreover, we showed that the DNA extracted from ancient dental pulp was not exempt from polymerase chain reaction (PCR) inhibitors, which could result from extreme DNA fragmentation. An adapted protocol with a supplementary step of purification removed this inhibition.  相似文献   
319.
The current study investigated whether the presence of school-based mental health clinicians in an urban school district was associated with reduced out-of-school suspension rates. Forty one elementary schools with expanded school mental health (ESMH) programs were compared to 41 schools without ESMH programs. Correlational analyses revealed associations between suspension outcomes and several school-level demographic variables including school attendance rate, percent of students in poverty, and percent of nonwhite students in the school. After controlling for these variables, however, results of stepwise linear regressions demonstrated no significant differences between ESMH and non-ESMH schools on suspension outcomes. Results of the current study suggest that the presence of ESMH clinicians will not necessarily impact suspension rates in an elementary school. Targeted and well-implemented approaches to address behaviors that lead to suspension, or school- and system-level policies to provide alternatives to suspensions, will likely be a better route to achieving this outcome.  相似文献   
320.
Journal of Youth and Adolescence - Three questions were examined in this study: (a) What is the course of emotional disturbance and delinquency during adolescence and young adulthood? (b) To what...  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