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   459篇
  免费   21篇
各国政治   27篇
工人农民   28篇
世界政治   34篇
外交国际关系   15篇
法律   221篇
中国政治   1篇
政治理论   153篇
综合类   1篇
  2021年   4篇
  2020年   8篇
  2019年   12篇
  2018年   8篇
  2017年   10篇
  2016年   14篇
  2015年   10篇
  2014年   14篇
  2013年   88篇
  2012年   13篇
  2011年   12篇
  2010年   11篇
  2009年   18篇
  2008年   13篇
  2007年   18篇
  2006年   14篇
  2005年   12篇
  2004年   9篇
  2003年   14篇
  2002年   17篇
  2001年   12篇
  2000年   5篇
  1999年   13篇
  1998年   7篇
  1997年   4篇
  1996年   7篇
  1995年   7篇
  1994年   4篇
  1993年   5篇
  1992年   8篇
  1991年   13篇
  1990年   8篇
  1989年   6篇
  1988年   4篇
  1987年   2篇
  1986年   2篇
  1985年   5篇
  1984年   4篇
  1983年   3篇
  1982年   3篇
  1981年   11篇
  1980年   2篇
  1979年   4篇
  1977年   6篇
  1974年   3篇
  1972年   1篇
  1971年   1篇
  1969年   2篇
  1968年   1篇
  1967年   4篇
排序方式: 共有480条查询结果,搜索用时 0 毫秒
161.
  • This paper builds upon a content analysis of all news articles that appeared in six national daily newspapers and of all national press releases issued by the three main political parties during the UK General Election 2001 campaign. The results were compared with data from two opinion polls conducted at the start and at the end of the campaign. Here, using the same basic data, we track the coverage of issues in party press releases and daily newspapers on a weekly basis to determine how the parties' priorities and press coverage evolved.
  • The results show that the Labour and Liberal Democrat campaign strategies, in terms of relative issue priorities, did not change during the campaign. However, the Conservatives shifted their attention to the public priorities of Health and Education towards the end of the campaign. There is evidence that the Conservative emphasis on Europe and taxation earlier in the campaign may have influenced the volume of press coverage but did not appear to have affected relative party standings. The implications of these results for political marketers are considered.
Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   
162.
163.
164.
Magnetic resonance images (MRI) of the whole, formalin-fixed brain produce details of pathologic changes deep within brain substance not apparent on external examination. Photographs of these radiographic images present pathologic features in a black-and-white, 2-dimensional format which has proven particularly effective in court before judge and jury. This pathologist has noted acceptance of such photographs in explaining to jurors the details of his testimony in selected cases where brain trauma resulted in a wrongful death. Penetrating missile wounds and blunt impact injuries are particularly well documented by this method.  相似文献   
165.
166.
The issue of racial and ethnic bias in policing has been the focus of legal and criminal justice scholarship, court action, and public debate in the U.S. for a number of years. The issue has also been prominent in criminal justice scholarship, public discussion, and policy making in other countries, particularly the U.K., for an even longer period. This article surveys the history of the issue in the U.S. and attempts to give scholars and policy makers the benefit of the insights gained through the U.S. experience in handling the issue. Among these are the importance of the empirical question of the “hit rate” and how police use of race or ethnicity as a criterion changes it, and the difficulties of dealing with the thorny benchmarking issue. The article also discusses how advocates in the U.S. have attempted to meet and overcome arguments that police and their supporters have made in an attempt to minimize the problem or justify doing little or nothing about it.  相似文献   
167.
168.
169.
A rapid high performance liquid chromatographic (HPLC) method for the determination of tocainide, using N-(2,6-dimethylphenyl)-2-amino-butanimide as an internal standard, was developed. A methylene chloride extraction involving salting out at pH 9.0 was employed. An 85:15 mixture of 0.025M monobasic potassium phosphate at pH 3.0 and acetonitrile was used as the mobile phase. The separation and quantitative analysis of tocainide was performed on a mixed phase column with a 1.0-mL/min flow rate and detection at 210 nm. Separation of tocainide from some of its metabolites required the use of heptane sulfonic acid as an ion-pairing reagent. For the free-drug assay, the specimen was centrifuged through an Amicon Centrifree filter before being processed.  相似文献   
170.
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