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   67449篇
  免费   3276篇
各国政治   4449篇
工人农民   2830篇
世界政治   5945篇
外交国际关系   3782篇
法律   31522篇
中国共产党   9篇
中国政治   741篇
政治理论   20507篇
综合类   940篇
  2021年   403篇
  2020年   1154篇
  2019年   1514篇
  2018年   1641篇
  2017年   1950篇
  2016年   2145篇
  2015年   1815篇
  2014年   2096篇
  2013年   10464篇
  2012年   1564篇
  2011年   1668篇
  2010年   1799篇
  2009年   2034篇
  2008年   1699篇
  2007年   1673篇
  2006年   1866篇
  2005年   1757篇
  2004年   1652篇
  2003年   1460篇
  2002年   1503篇
  2001年   1532篇
  2000年   1340篇
  1999年   1202篇
  1998年   1079篇
  1997年   961篇
  1996年   943篇
  1995年   898篇
  1994年   913篇
  1993年   924篇
  1992年   933篇
  1991年   970篇
  1990年   914篇
  1989年   966篇
  1988年   946篇
  1987年   977篇
  1986年   943篇
  1985年   1016篇
  1984年   929篇
  1983年   978篇
  1982年   912篇
  1981年   849篇
  1980年   656篇
  1979年   683篇
  1978年   594篇
  1977年   533篇
  1976年   485篇
  1975年   405篇
  1974年   412篇
  1973年   424篇
  1972年   360篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
261.
262.
263.
This article explores the consequences for the native population of the Colombian Chocó of the emergence, over the course of the eighteenth century, of an elite of caciques and indios mandones or principales whose functions of powers far exceeded those of the warrior chiefs that had traditionally acted as leaders of their people. Appointed for the purpose of facilitating the collection of tribute and the supply of labour to European settlers, caciques and mandones were almost universally rejected by native communities during the early phases of Spanish colonisation (c. 1630–1690), and they disappear from the historical record after Independence. Eighteenth‐century sources, however, not only record the existence of a clearly defined elite of mandones or principales in villages across the region, but show these individuals engaging actively with the colonial authorities, on behalf of their communities, at local and audiencia levels. This article argues that, at a time of a much strengthened European presence in the region, caciques and mandones came to understand their roles in ways that were entirely different from those intended by the Spanish, and in so doing acquired the legitimacy that had eluded their seventeenth‐century predecessors. Far from serving merely as intermediaries between settlers and indigenous populations, indios mandones acted as negotiators on behalf of the indigenous population, whose task was to defend and/or advance the interests of the communities they had been appointed to control.  相似文献   
264.
Prior studies of recidivism have focused almost exclusively on individual‐level characteristics of offenders and their offenses to explore the correlates of reoffending. Notably absent from these studies are measures reflecting the neighborhood contexts in which individuals live. The current research addresses this shortcoming. Using data on a sample of ex‐offenders in Multnomah County, Oregon (Portland and surrounding area) in conjunction with 2000 census data, we answer two questions. First, which individual‐level factors influence rates of recidivism? Second, to what extent does neighborhood socioeconomic status account for variation in the reoffending behavior of ex‐prisoners that is not explained by their individual‐level characteristics? We find that those who return to disadvantaged neighborhoods recidivate at a greater rate while those who return to resource rich or affluent communities recidivate at a lesser rate, controlling for individual‐level factors.  相似文献   
265.
Das deutsche Bodenschutzrecht ist angesichts seines geringen Anwendungsbereiches sowie seiner sehr lückenhaften und zudem vollzugsunfreundlichen Konkretisierung in Grenzwerten h?ufig wenig effektiv. Diese These verfolgt der vorliegende Beitrag anhand eines besonders wesentlichen, in der politischen, juristischen und naturwissenschaftlichen Debatte bisher kaum beachteten gesundheits- und umweltrelevanten Faktors: der düngungsbedingten Belastung von B?den durch Uraneintr?ge. Dies verhilft zugleich zu einer n?heren Bestimmung der konkurrierenden Anwendungsbereiche verschiedener Umweltgesetze.  相似文献   
266.
Esophageal and tracheal fistulas, which occur in 0.05% of medicolegal autopsies, were demonstrated in three cases by a postmortem radiographic technique using silicone rubber/lead oxide as a contrasting medium that vulcanizes at room temperature. In one 83-year-old male, a tracheoesophageal fistula was detected, which had developed after surgical repair of an esophageal rupture caused by a flexible fiberoptic endoscope. In a second case, carcinoma of the esophagus in a 78-year-old male had eroded the trachea and arcus of the aorta creating a fatal tracheoesophagoaortic fistula. In a third case, 55-year-old female developed a tracheobrachicephalic artery fistula as a result of an infiltrating cystic adenocarcinoma of the trachea, resulting in a fatal hemorrhage into the trachea. The results of this study indicate that diagnostic radiologic methods using a vulcanized contrasting medium are useful in supplementing normal dissection in autopsy cases with suspected fistulas of the esophagus or trachea.  相似文献   
267.
268.
269.
270.
Local government reforms in contemporary Russia are placed in the broader contexts of political reform under Putin and the historical relationship between local administration and the state. Reforms of local government thus help illuminate the architecture of contemporary state building in Russia and the degree to which contemporary Russia perpetuates political traditions. This study reviews the antecedent action in local government prior to the Putin era. It then examines the Kozak Commission and the new law on local government, assessing the strengths and weaknesses of these reforms. Finally, this study examines the challenges of implementing the reforms and what these challenges tell us about devolution and centralisation under Putin.  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