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   7322篇
  免费   482篇
各国政治   351篇
工人农民   230篇
世界政治   475篇
外交国际关系   252篇
法律   5131篇
中国政治   36篇
政治理论   1291篇
综合类   38篇
  2020年   158篇
  2019年   167篇
  2018年   184篇
  2017年   213篇
  2016年   218篇
  2015年   198篇
  2014年   182篇
  2013年   763篇
  2012年   161篇
  2011年   180篇
  2010年   211篇
  2009年   229篇
  2008年   168篇
  2007年   173篇
  2006年   175篇
  2005年   164篇
  2004年   181篇
  2003年   165篇
  2002年   148篇
  2001年   316篇
  2000年   256篇
  1999年   233篇
  1998年   104篇
  1997年   67篇
  1996年   72篇
  1995年   82篇
  1994年   90篇
  1993年   90篇
  1992年   154篇
  1991年   158篇
  1990年   145篇
  1989年   156篇
  1988年   126篇
  1987年   139篇
  1986年   126篇
  1985年   134篇
  1984年   102篇
  1983年   117篇
  1982年   83篇
  1981年   79篇
  1980年   60篇
  1979年   108篇
  1978年   72篇
  1977年   59篇
  1976年   51篇
  1975年   49篇
  1974年   58篇
  1973年   58篇
  1972年   44篇
  1968年   41篇
排序方式: 共有7804条查询结果,搜索用时 63 毫秒
991.
Since the early 1960s many Third World countries have been attracted to referendums, with the earliest being held in Uruguay in 1917, Iraq in 1921 and Chile in 1925. Butler and Ranney(1978) identified referendums in Third World nations up to 1978, yet analysis of the political process and patterns of these referendums is lacking in the political science literature. It is the purpose of this paper to identify some of the patterns and processes common to African, Asian, Latin American and Middle Eastern referendums. The paper will examine briefly the Western democratic referendums, excluding the experience of Switzerland and Australia where referendums are an integral part of the constitutional and political process. Secondly, the general and regional Third World patterns will be examined. Thirdly, referendums in nine countries will be described; lastly, the paper will conclude with the identification of the common patterns and processes of Third World referendums. In this paper we are concerned with post- independence national level referendums; although, many referendums have been conducted on a subnational level and prior to independence.  相似文献   
992.
993.
994.
Cardiovascular disease continues to be the single most common generic cause of sudden and unexpected deaths. Atherosclerotic coronary heart disease and acute myocardial infarction are the most prevalent forms of fatal cardiac disease observed at autopsy. Other cardiac lesions are frequently listed as causes of death, but the prevalence of such lesions as incidental findings in the general population is unknown. In this study, 470 consecutive forensic autopsies were evaluated for minor and major anomalies. The most frequently observed major congenital finding was floppy mitral valve (5%). Tunneled coronary arteries, considered minor congenital findings, were seen in 29%. Atherosclerotic coronary heart disease was the most common major acquired finding, observed in 16% of cases. Of the 470 hearts, only 8% were considered normal.  相似文献   
995.
IMPROVING OBSERVATIONAL STUDIES OF POLICE   总被引:1,自引:0,他引:1  
Despite advances in measurement and the sophistication of statistical technique, quantitative studies of police behavior seems to have reached the limits of their capacity to explain variance, develop and test theory, and inform policy choices. This paper suggests that further advances in observational studies of police behavior require that researchers account for the cognitive decision processes police use in exercising their discretion. A method for debriefing officers after encounters with the public is described. The results of a preliminary test of the method indicate that valuable in formation can be obtained with quite limited reactivity effects.  相似文献   
996.
The association of simultaneous abnormalities of the thyroid and thymus is well documented, particularly in the case of Graves' disease. We present a case of a natural death following thyroid storm in which marked thymic hyperplasia was present. This finding can be helpful in determining the cause of death.  相似文献   
997.
Modern liberal theories share the idea that the state and its laws should remain neutral with respect to the varying conceptions of the good life held by individuals. This article discusses the way in which this notion of neutrality is defined and justified. Rawls's theory of justice is shown to be a prime example of such a theory. Questions are raised, however, if Rawls's theory has adequately formulated the conditions that would make it possible for each citizen to fulfill his own conception of the good. After arguing that Dworkin's solution to this problem is also problematic, it is argued that Sen's solution to the question of what conditions create neutrality shows the way ahead.  相似文献   
998.
999.
An ultrathin-layer polyacrylamide gel isoelectric focusing technique that uses a composite of ampholytes from three commercial sources is described for subtyping esterase D. All common allelic products of esterase D were separated clearly. The technique described in this paper provides a higher conclusive call rate on known blood specimens (95.8%) and questioned bloodstains (69.7%) compared with continuous zone electrophoresis in agarose gels (89.9 and 37.6%, respectively).  相似文献   
1000.
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