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   9258篇
  免费   295篇
各国政治   502篇
工人农民   303篇
世界政治   748篇
外交国际关系   413篇
法律   5082篇
中国政治   75篇
政治理论   2314篇
综合类   116篇
  2020年   108篇
  2019年   162篇
  2018年   220篇
  2017年   215篇
  2016年   220篇
  2015年   170篇
  2014年   211篇
  2013年   1098篇
  2012年   241篇
  2011年   228篇
  2010年   216篇
  2009年   232篇
  2008年   236篇
  2007年   250篇
  2006年   258篇
  2005年   225篇
  2004年   228篇
  2003年   238篇
  2002年   225篇
  2001年   263篇
  2000年   227篇
  1999年   203篇
  1998年   135篇
  1997年   127篇
  1996年   105篇
  1995年   111篇
  1994年   112篇
  1993年   122篇
  1992年   151篇
  1991年   177篇
  1990年   146篇
  1989年   176篇
  1988年   149篇
  1987年   178篇
  1986年   163篇
  1985年   177篇
  1984年   165篇
  1983年   166篇
  1982年   131篇
  1981年   119篇
  1980年   109篇
  1979年   107篇
  1978年   89篇
  1977年   70篇
  1976年   74篇
  1975年   75篇
  1974年   80篇
  1973年   81篇
  1972年   59篇
  1969年   62篇
排序方式: 共有9553条查询结果,搜索用时 31 毫秒
171.
172.
The skulls of two Japanese soldiers brought back to the United States following World War II suggest that more may be appearing in forensic science cases. Both cases are cranial vaults without faces or lower jaws. One was a fighter pilot. Both skulls have secondary characteristics of "dry house dust" adhering to the bone and have, to some degree, been painted.  相似文献   
173.
174.
175.
176.
This article reviews the so-called competition strategy for medical care. It sets out the policy goals of the strategy and the problems in the present medical and insurance system that it seeks to address. It then describes several distinct formulations of the competition strategy, showing that it is not a single, rigid, monolithic approach, but rather a flexible combination of market-oriented approaches. Finally, it briefly discusses the technical and political problems and prospects of the strategy.  相似文献   
177.
This article describes the results of a 1981 survey of 1,000randomly selected scholars of American government and politicswho were asked to rank the most significant intergovernmentalevents and trends of the past twenty years. Responses were receivedfrom almost 40 percent of these scholars; no significant returnbiases were detected. These scholars ranked civil rights andvoting rights acts as the most significant events of these decades.General Revenue Sharing and the reapportionment cases were rankedsecond and third in importance. The increased flow of federaldollars to states and local governments was ranked the mostimportant trend affecting intergovernmental relations, followedby the increased public disaffection with government and thegrowing dependence of local governments on state and federalaid. The Vietnam War and the inflationary spiral it initiatedwas ranked as the most significant social event affecting thecourse of intergovernmental relations, followed closely by theenergy crisis and the beginnings of the "Great Society." Thearticle also examines the effects of party identification, age,year of degree, government experience, region, and city sizeon scholarly attitudes toward these events and trends. Whilethe overall rankings were not dramatically altered, partisanship,region, and city size all were factors found to be noticeablyrelated to scholarly rankings of these important events andtrends.  相似文献   
178.
Kazee  Thomas A. 《Publius》1983,13(1):131-139
This article examines effects of the "open-elections" law passedby the Louisiana legislature in 1975. The law eliminated traditionalclosed party primaries, creating instead, an open-electionssystem that requires all candidates, regardless of party affiliation,to appear on the same ballot. By and large, the new system hasnot had a significant effect on party competition, party success,or voter turnout in Louisiana.  相似文献   
179.
A life-span developmental perspective suggests that variations in social context will lead to differences among individuals in their action orientations. An action orientation is defined by an individual's values, control beliefs, goal orientation, and decision-making perspective. To investigate differences in the action orientations of adolescents embedded in different contexts, 83 sophomore and senior high school students on either a vocational training or college-preparatory trajectory participated in the study. A discriminant function analysis of action orientations showed that the action orientations of vocational training and college-preparatory students differed: College-preparatory students had a career preparation action orientation and vocational students had an adult preparation action orientation; also, sophomores may have had a socializing orientation. The findings are discussed in terms of the developmental tasks facing students in different grades and on different life-course trajectories. Received Ph.D. from West Virginia University. Research interests are cognitive and social cognitive development in cultural and institutional contexts.Received Ph.D. from the University of Iowa. Research interests include adult developmental and problem solving.  相似文献   
180.
The post-mortem cooling of the human head, over the first fifteen hours after death, was measured by infrared thermology. A detailed temperature map of the head and face was obtained by the use of image processing techniques and the cooling behaviour of twelve preselected facial features was observed. The two main findings of the study were a difference in cooling pattern between the upper and the lower part of the head, and a consistency in the cooling pattern of the lower part of the head in all the cases studied. A comparison of various model fits to the raw data was undertaken and the "best" bodies, models and features were determined on a statistical basis. The formula that best fitted the raw data was a novel double application of Newton's law. The features with the least error in data fitting were the chin and zygoma; that with the most error was the mouth.  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