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   1500篇
  免费   51篇
各国政治   115篇
工人农民   93篇
世界政治   162篇
外交国际关系   79篇
法律   701篇
中国政治   6篇
政治理论   379篇
综合类   16篇
  2023年   16篇
  2021年   8篇
  2020年   20篇
  2019年   36篇
  2018年   37篇
  2017年   47篇
  2016年   60篇
  2015年   27篇
  2014年   52篇
  2013年   222篇
  2012年   43篇
  2011年   41篇
  2010年   25篇
  2009年   45篇
  2008年   52篇
  2007年   48篇
  2006年   27篇
  2005年   41篇
  2004年   49篇
  2003年   38篇
  2002年   40篇
  2001年   50篇
  2000年   55篇
  1999年   29篇
  1998年   24篇
  1997年   24篇
  1996年   15篇
  1995年   13篇
  1994年   18篇
  1993年   18篇
  1992年   25篇
  1991年   30篇
  1990年   31篇
  1989年   21篇
  1988年   21篇
  1987年   18篇
  1986年   14篇
  1985年   21篇
  1984年   16篇
  1983年   15篇
  1982年   15篇
  1981年   6篇
  1980年   9篇
  1979年   14篇
  1978年   6篇
  1976年   9篇
  1975年   6篇
  1974年   7篇
  1973年   9篇
  1972年   7篇
排序方式: 共有1551条查询结果,搜索用时 15 毫秒
41.
In the early to mid-1990s, a group known as Aum Shinrikyo amassed, and used against innocent civilians in Japan, an arsenal of chemical and biological weapons. Two examples are the use of sarin gas in Matsumoto in 1994 and in Tokyo in 1995. The attacks claimed a total of 19 lives and caused thousands of injuries. A review of the scenario, starting in 1994 and early 1995 with the sarin attacks, reveals potential opportunities to preempt such an attack or to mitigate its effects. The Aum Shinrikyo case study is a good learning tool for policymakers and emergency response professionals seeking to form a coherent domestic preparedness strategy.  相似文献   
42.
Journalists were alarmed when, in 2005, the United States Court of Appeals for the Eleventh Circuit denied shield-law protection to Don Yaeger, an investigative reporter for Sports Illustrated, in a libel suit by fired football coach Mike Price. Yaeger is a journalist, and Alabama's shield law offers absolute protection even when a journalist is a party to a case. The court's decision turned on the fact that Alabama's seventy-three-year-old statute does not include the word “magazine.” This article shows that this hole in the “covered medium” language of Alabama's statute is not uncommon among the nation's thirty-six shield laws and that the Eleventh Circuit's strict reading of the statute's text is not at odds with current trends in statutory interpretation. Those two facts, combined with the rise of the Internet as an important vehicle for journalism, suggest the time is ripe to scrutinize and modernize shield laws, some of which have been on the books for more than a century.  相似文献   
43.
44.
45.
46.
This article proposes a new approach to investigating the substance of lawmaking. Only a very small proportion of bills become law in the U.S. Congress. However, the bills that do become law often serve as vehicles for language originating in other bills. We investigate “text reuse” methods as a means for tracing the progress of policy ideas in legislation. We then show how a focus on policy ideas leads to new insights into the lawmaking process. Although our focus is on relating content found within bills, the same methods can be used to study policy substance across many research domains.  相似文献   
47.
High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures.  相似文献   
48.
49.
50.
Eric Hobsbawm's outline of the concept of social banditry suggest certain conditions of existence for that mode of primitive rebellion. Primary among these conditions are the presence of a ‘traditional peasant environment and the absence of ‘industrial capitalism’. This paper presents a critique of Hobsbawm's specifications, and suggest two alternative conditions: the presence of class conflict which unites direct producers, and the absence of effective, institutionalised political organisation of producers’ interests. This reformulation is illustrated by reference to the Kelly Outbreak in late nineteenth century Australia.  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