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   8179篇
  免费   312篇
各国政治   601篇
工人农民   262篇
世界政治   729篇
外交国际关系   514篇
法律   3898篇
中国政治   59篇
政治理论   2346篇
综合类   82篇
  2023年   50篇
  2022年   37篇
  2021年   68篇
  2020年   140篇
  2019年   193篇
  2018年   218篇
  2017年   269篇
  2016年   268篇
  2015年   151篇
  2014年   220篇
  2013年   1302篇
  2012年   221篇
  2011年   241篇
  2010年   221篇
  2009年   230篇
  2008年   215篇
  2007年   281篇
  2006年   246篇
  2005年   285篇
  2004年   280篇
  2003年   273篇
  2002年   281篇
  2001年   193篇
  2000年   166篇
  1999年   156篇
  1998年   109篇
  1997年   109篇
  1996年   111篇
  1995年   106篇
  1994年   109篇
  1993年   94篇
  1992年   119篇
  1991年   132篇
  1990年   103篇
  1989年   109篇
  1988年   100篇
  1987年   89篇
  1986年   104篇
  1985年   89篇
  1984年   75篇
  1983年   79篇
  1982年   61篇
  1981年   78篇
  1980年   49篇
  1979年   58篇
  1978年   53篇
  1977年   52篇
  1976年   38篇
  1968年   27篇
  1967年   29篇
排序方式: 共有8491条查询结果,搜索用时 15 毫秒
81.
82.
83.
Schmitt  David E. 《Publius》1988,18(2):33-45
Northern Ireland is a bicommunal society in which Protestantsare numerically dominant; Roman Catholics constitute virtuallyall of the remaining population. On the island as a whole, Protestantsare heavily outnumbered; the Republic of Ireland (the "South")has a population that is about 96 percent Catholic. Social segregationof the two northern communities is relatively distinct, andthere is little crosscutting between groups that might lessenbicommunal conflict. A reciprocal relationship exists betweenthe social system and political structures. Northern Irish politicalinstitutions followed the Westminster model, which facilitatedthe political exclusion of Catholics and impeded social as wellas political integration. The bicommunal social structure hasimpeded the development of more accommodating political structures.Geographic issues and external linkages compound the politicalproblem. Northern Irish politics can be viewed as a "dual dyad"in which the United Kingdom and the Republic of Ireland arecritical components. Psychological dimensions of Northern Irishbicommunalism further exacerbate the conflict.  相似文献   
84.
The United States today faces a loss of influence as a world power, a reduction in American independence as a policymaker, and a decline in the standard of living on which Americans have come to depend. History teaches that nations weaker and less productive than the United States can rise to become economic powerhouses and rapidly increase their standards of living. History also teaches that nations failing to recognize their fundamental problems will inevitably decline. American politicians must face what is abundantly clear: the United States is losing ground and must act quickly to reverse its course. This White Paper outlines what must be done. Information about the nation's current status must be analyzed and communicated. Incentives to improve the level of competence in government must be provided and maintained. The emphasis of government policy must be changed to reflect broad economic and technological interests as opposed to special interests. Savings must be encouraged and increased. Infrastructure must be improved Tax laws must be modified to help bring these changes about. Economic and technological issues must be elevated to the importance they require. American thinking must reflect the new realities: that the age of leadership through military power is over, that the requirements for success in the world of the 1990s and beyond require a sound and growing economy that is internationally competitive. The US can accomplish these goals only through foundation-shaking, comprehensive, fundamental changealong the lines we propose herein.This paper is the executive summary (with minor editing modifications) of a white paper that is available from Cornell University's Johnson Graduate School of Management.  相似文献   
85.
86.
87.
88.
89.
System of cities dynamics in newly industrializing nations   总被引:1,自引:0,他引:1  
Rapid industrialization in such countries as Korea, Malaysia, and Taiwan suggests that the complex functional structures of cities in the periphery may appear early in development. This paper proposes a 4-stage framework for the dynamics of a system of cities in a developing country undergoing industrialization and encompassing both nonindustrial and industrial development. The synthesis is assessed with evidence from the newly industrializing Asian nations of Korea, Malaysia, and Taiwan. The 4 stages of cities' industrial change include 1) increasing primacy with industrial satellites, 2) increasing primacy with industrial satellites and nodal towns on a transport network, 3) rapidly increasing primacy with rapidly growing industrial satellites and nodal towns on the transport network, and 4) decreasing primacy with slowly growing industrial satellites and rapidly growing peripheral industrial towns. The 4-stage synthesis suggests that economic development in the periphery may occur even while the primate city maintains its hegemony over control and coordination functions. Peripheral industrial growth does not challenge this hegemony. The growth of industrial cities is, instead, part of a process of regional specialization in which the low cost labor in the periphery becomes an attraction for industry. These stages are not inevitable. Government efforts are necessary to develop rural areas in terms of social improvements (education and health), capital infrastructure (transportation and utilities), and fair payments to farmers for their outputs. These seem to be the lessons learned from the industrialization process in Korea, Malaysia, and Taiwan.  相似文献   
90.
An examination of a case in which adjunctive use of scanning electron microscopy (SEM) demonstrated the presence of unusual three-dimensional characteristics in a bite mark. Despite the fact that many bite marks do not show "depth," demonstration of the presence of this third dimension can produce significant data for evidentiary purposes. In some instances, these data may transform what seem to be class characteristics of a bite mark into individual characteristics and thus impart much more uniqueness to the evidence. Because of the high level of resolution and magnification of SEM, some three-dimensional characteristics not visible to the eye can be shown quite clearly by its use. Emphasis will be given to the value of SEM as a tool of the forensic odontologist in bite mark analysis.  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