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   8579篇
  免费   251篇
各国政治   587篇
工人农民   245篇
世界政治   614篇
外交国际关系   329篇
法律   5130篇
中国共产党   7篇
中国政治   52篇
政治理论   1788篇
综合类   78篇
  2020年   111篇
  2019年   139篇
  2018年   242篇
  2017年   224篇
  2016年   247篇
  2015年   192篇
  2014年   166篇
  2013年   894篇
  2012年   208篇
  2011年   220篇
  2010年   212篇
  2009年   234篇
  2008年   264篇
  2007年   286篇
  2006年   319篇
  2005年   232篇
  2004年   213篇
  2003年   211篇
  2002年   217篇
  2001年   259篇
  2000年   217篇
  1999年   178篇
  1998年   112篇
  1997年   100篇
  1996年   77篇
  1995年   80篇
  1994年   84篇
  1993年   83篇
  1992年   124篇
  1991年   162篇
  1990年   141篇
  1989年   152篇
  1988年   136篇
  1987年   156篇
  1986年   146篇
  1985年   156篇
  1984年   140篇
  1983年   143篇
  1982年   105篇
  1981年   102篇
  1980年   91篇
  1979年   99篇
  1978年   80篇
  1977年   60篇
  1976年   66篇
  1975年   62篇
  1974年   71篇
  1973年   70篇
  1972年   57篇
  1969年   57篇
排序方式: 共有8830条查询结果,搜索用时 15 毫秒
61.
A number of recent studies have explored the consequences ofinterracial peer effects on the academic and social performanceof minority students. This article contributes to that discussion,focusing, however, on perceptions rather than behaviors. Theanalysis suggests that exposure to white peers is associatedwith declining perceptions of racial justice among black andLatino high school students. While cautioning against causalinterpretations of this finding, the article suggests that theintegrationist aims of Brown v. Board of Education will notbe satisfied without more thoughtful and vigorous desegregationefforts.  相似文献   
62.
63.
Andrew M. Greeley is a priest, sociologist, novelist, and journalist. His scholarly writings concentrate on religion and ethnicity. His other writings range from critiques of the Catholic church to best-selling novels.  相似文献   
64.
65.
This paper describes a collaborative exercise intended to demonstrate whether uniformity of DNA profile results could be achieved between different European laboratories. It was shown that this goal can be obtained provided that a common protocol is followed (specifically the use of a common electrophoretic buffer as being the most important parameter). Generally, lower molecular weight loci (with lower molecular weight fragments) such as YNH24 perform better than higher molecular weight loci such as MS43a. The results of the exercise are discussed in relation to the objectives of the European DNA profiling group (EDNAP).  相似文献   
66.
The impact of high temperatures (24 to 39 degrees C) and low to moderately high humidities (20 to 70%) on the applicability of TLC systems for drug identification was studied during a 6 month climatologic cycle in Burkina Faso (West Africa). In general, the Rf values as observed on the plates were found to be substantially affected as compared with values obtained at temperate climates. Some TLC systems were more affected than others and the largest deviations of up to 30 Rf units were at low humidities. Tropical conditions also had a negative effect on the reproducibility of Rf values. However, when an Rf-correction procedure was applied, using reference mixtures of known drugs on each plate, accuracy as well as reproducibility of the resulting Rfc values were drastically improved and data thus corrected were found to be compatible with existing TLC data bases developed under moderate climatological conditions. The impact of high to extremely high humidities (70 to 100%) remains to be investigated.  相似文献   
67.
The role of the state is changing under the impact of, for example, globalization. The changes have been variously understood as the new public management (NPM), the hollowing–out of the state and the new governance. This special issue of Public Administration explores the changing role of the state in advanced industrial democracies. It focuses on the puzzle of why states respond differently to common trends.
This introductory article has three aims. First, we provide a brief review of the existing literature on public sector reform to show that our approach is distinctive. We argue that the existing literature does not explore the ways in which governmental traditions shape reform. Second, we outline an interpretive approach to the analysis of public sector reform built on the notions of beliefs, traditions, dilemmas and narratives. We provide brief illustrations of these ideas drawn from the individual country articles. Finally, we outline the ground covered by all the chapters but we do not summarize and compare their experiences of reform. That task is reserved for the concluding article.  相似文献   
68.
The legislator, in the German Federal Republic, has opted for a specific legal solution in relation to the protection of the embryo. Carola Müller, in this article, describes this regulation as well as the reasons that have led to its adoption. The article finishes with an exposition of the existing social discussion in German society and the effect that the law has had.  相似文献   
69.
We consider the problem of drawing inferences within a legal framework when a person is a suspect for two separate offences. Although we are primarily concerned with scientific evidence the issue inevitably arises as to how that evidence interacts with other, non-scientific evidence. We show that, in this particular context, the evidence can be conveniently classified into three categories that concern, respectively: the first crime only; the second crime only; and evidence that relates to similarities between the two crimes. Two case examples are considered and we consider DNA, fibres and eyewitness evidence. These are viewed from the perspective of a prosecutor who has to decide whether or not to charge a suspect with one or both crimes. Graphical sensivity analyses are presented which have features that are not intuitively obvious.  相似文献   
70.
行政问责制是构建责任政府的具体制度安排。问责制度在制度设计与制度执行层面存在制度堕距。制度堕距对地方政府经济行为产生重要影响,因此,从制度设计与制度执行层面改进问责制制度文本,消弭制度堕距,有助于构建优良的问责制制度,推动地方政府经济行为合理化。  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