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   17611篇
  免费   470篇
各国政治   791篇
工人农民   582篇
世界政治   1196篇
外交国际关系   595篇
法律   10924篇
中国共产党   1篇
中国政治   94篇
政治理论   3714篇
综合类   184篇
  2020年   176篇
  2019年   258篇
  2018年   319篇
  2017年   359篇
  2016年   378篇
  2015年   279篇
  2014年   316篇
  2013年   1792篇
  2012年   413篇
  2011年   449篇
  2010年   362篇
  2009年   421篇
  2008年   462篇
  2007年   438篇
  2006年   443篇
  2005年   386篇
  2004年   378篇
  2003年   398篇
  2002年   396篇
  2001年   696篇
  2000年   606篇
  1999年   504篇
  1998年   237篇
  1997年   223篇
  1996年   210篇
  1995年   213篇
  1994年   222篇
  1993年   210篇
  1992年   368篇
  1991年   390篇
  1990年   364篇
  1989年   408篇
  1988年   356篇
  1987年   350篇
  1986年   401篇
  1985年   377篇
  1984年   350篇
  1983年   333篇
  1982年   224篇
  1981年   199篇
  1980年   167篇
  1979年   247篇
  1978年   150篇
  1977年   167篇
  1976年   147篇
  1975年   132篇
  1974年   164篇
  1973年   154篇
  1972年   142篇
  1971年   123篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
132.
133.
Recent British work has focused attention on preventing repeat victimization as part of an overall crime prevention strategy. Because domestic violence victims are among those most likely to suffer multiple victimizations, they are logical candidates for programs targeted at reducing repeat victimization.
This article reports on a joint law enforcement-social services approach to reduce the incidence of repeat domestic violence. The research design randomly assigned households reporting domestic incidents within two public housing police service areas in New York to receive or not receive a follow-up to the initial patrol response. (The follow-up visit was conducted by a police officer and a social worker.) In addition, housing projects in the same area were randomly assigned to receive or not receive public education about domestic violence.
Neither treatment produced a reduction in violence. However, households in projects that had received public education and households that received the follow-up visits were both more likely to report new violence to the police than households that did not receive the treatments. Moreover, the effect of the follow-up visit was most pronounced among households with more serious histories of violence. The results suggest that the interventions increased citizens' confidence in the ability of the police to handle domestic situations.  相似文献   
134.
Law and Philosophy -  相似文献   
135.
136.
137.
Quadratic pieces of fleece measuring 16 mm2 were soaked with 10 different blood-samples in the dilution steps of 1:1, 1:10, 1:100, 1:1000, respectively, and were tested in blood group typing and identification tests of forensic serology. The above spezified dilutions correspond with 5 microliters, 0.5 microliter, 0.05 microliter and 0.005 microliter of blood, respectively. The detection limit of the microspectrometric test for blood was the dilution 1:10, of the porphyrine test a dilution above 1:100, whereas the preliminary test for blood (peroxidase) succeeded always up to a dilution of 1:1000 and the species determination by the radial immunodiffusion test in agar gels succeeded in most cases op to a dilution of 1:1000. The detection limit of the anti-human globulin inhibition test was between the dilution steps 1:10 and 1:100 when non-titrated and undiluted anti-human globulin serum was used. Gc- and ABO-grouping were possible up to a dilution of 1:100 and were thus the most sensitive grouping systems. Phenotyping of the enzyme-systems and the Gm/Km-system usually required stains with considerably higher blood concentrations i.e. stains of undiluted blood.  相似文献   
138.
139.
In 1990, the state of California passed the pioneering mandate on zero emission vehicles (ZEV). This technology‐forcing regulation is aimed at improvement of air quality and protection of public health from the adverse effects of air pollutants from automobiles. Facing severe opposition from the auto industry, the mandate has been revised a number of times, most recently in 2003, whereby the requirement for ZEVs have been made to align with the pace of technology development. Review of strategies used in implementation of the mandate has revealed greater emphasis on the economic incentives for rather than on environmental merits of ZEVs. Using prospect theory as the framework for analysis, the reasons have been explored. The findings of the study help us to understand how decisions are made with respect with to deviations from a mental anchor point and through the process of evaluation of losses and gains.  相似文献   
140.
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