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   632篇
  免费   27篇
各国政治   35篇
工人农民   46篇
世界政治   64篇
外交国际关系   16篇
法律   288篇
中国政治   17篇
政治理论   190篇
综合类   3篇
  2021年   6篇
  2020年   8篇
  2019年   17篇
  2018年   16篇
  2017年   15篇
  2016年   19篇
  2015年   12篇
  2014年   19篇
  2013年   105篇
  2012年   18篇
  2011年   30篇
  2010年   13篇
  2009年   10篇
  2008年   22篇
  2007年   16篇
  2006年   25篇
  2005年   25篇
  2004年   23篇
  2003年   16篇
  2002年   18篇
  2001年   16篇
  2000年   14篇
  1999年   13篇
  1998年   7篇
  1997年   11篇
  1996年   11篇
  1995年   10篇
  1994年   10篇
  1993年   12篇
  1991年   4篇
  1990年   4篇
  1989年   4篇
  1988年   5篇
  1987年   5篇
  1986年   11篇
  1985年   7篇
  1984年   11篇
  1983年   3篇
  1982年   8篇
  1981年   5篇
  1979年   10篇
  1978年   4篇
  1977年   4篇
  1976年   5篇
  1975年   3篇
  1971年   3篇
  1969年   3篇
  1968年   4篇
  1967年   5篇
  1943年   2篇
排序方式: 共有659条查询结果,搜索用时 15 毫秒
51.
Chemical processes involved in the development of latent fingerprints using the cyanoacrylate fuming method have been studied. Two major types of latent prints have been investigated-clean and oily prints. Scanning electron microscopy (SEM) has been used as a tool for determining the morphology of the polymer developed separately on clean and oily prints after cyanoacrylate fuming. A correlation between the chemical composition of an aged latent fingerprint, prior to development, and the quality of a developed fingerprint has been observed in the morphology. The moisture in the print prior to fuming has been found to be more important than the moisture in the air during fuming for the development of a useful latent print. In addition, the amount of time required to develop a high quality latent print has been found to be within 2 min. The cyanoacrylate polymerization process is extremely rapid. When heat is used to accelerate the fuming process, typically a period of 2 min is required to develop the print. The optimum development time depends upon the concentration of cyanoacrylate vapors within the enclosure.  相似文献   
52.
53.
This article seeks to place the 1997 referendum on the Labour government's plans to establish an elected Welsh Assembly into the context of the debate on devolution as it has developed in Wales since 1979, when broadly similar proposals were overwhelmingly rejected by the Welsh electorate. The authors argue that given the belated decision to hold the referendum, the particular difficulties created by the Welsh political landscape, and the fact that there was no real attempt to develop a broad-based consensus behind the proposals before the 1997 general election, the fact that the proposals were finally approved – albeit by the narrowest of margins – represents a substantial achievement for the pro-devolutionists.  相似文献   
54.
This study examined the psychological impact of stalking upon female undergraduates, a population previously determined to experience a surprising stalking prevalence rate. Despite common understanding that stalking has deleterious effects, there have been no previous efforts to systematically assess them with standardized measures. Thirty-six female stalking victims were compared with 43 females who had been harassed and 48 controls. Psychological impact was assessed with the Posttraumatic Stress Disorder Scale, the Symptom Checklist-90-R, and the Self-Report Interpersonal Trust Scale. Stalked subjects endorsed significantly more PTSD symptoms and with greater severity than the harassed or control subjects. Stalked subjects also had significantly higher scores on several subscales of the SCL-90, and had significantly higher positive symptom totals and distress indices.  相似文献   
55.
56.
57.
58.
59.
Lionel S. Lewis 《Society》2014,51(1):49-63
This is the last in a series of five articles focusing on how Bernard Madoff’s confidence game (con game) worked. It examines the international money collecting activities by ropers for Bernard L. Madoff Investment Securities (BLMIS). Before globalization, Madoff’s con game brought him millions of dollars; after globalization, it began bringing him billions, making him remarkably successful until his run of luck was brought to a sudden halt by the worldwide economic downturn.  相似文献   
60.
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