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   8210篇
  免费   295篇
各国政治   325篇
工人农民   307篇
世界政治   641篇
外交国际关系   293篇
法律   5465篇
中国政治   47篇
政治理论   1389篇
综合类   38篇
  2021年   57篇
  2020年   133篇
  2019年   163篇
  2018年   201篇
  2017年   224篇
  2016年   220篇
  2015年   153篇
  2014年   216篇
  2013年   824篇
  2012年   219篇
  2011年   229篇
  2010年   186篇
  2009年   182篇
  2008年   221篇
  2007年   242篇
  2006年   252篇
  2005年   208篇
  2004年   217篇
  2003年   233篇
  2002年   182篇
  2001年   330篇
  2000年   319篇
  1999年   228篇
  1998年   93篇
  1997年   73篇
  1996年   79篇
  1995年   74篇
  1994年   86篇
  1993年   68篇
  1992年   148篇
  1991年   160篇
  1990年   141篇
  1989年   157篇
  1988年   140篇
  1987年   155篇
  1986年   136篇
  1985年   154篇
  1984年   120篇
  1983年   142篇
  1982年   97篇
  1981年   93篇
  1980年   73篇
  1979年   104篇
  1978年   79篇
  1977年   67篇
  1976年   57篇
  1975年   47篇
  1974年   57篇
  1973年   66篇
  1971年   58篇
排序方式: 共有8505条查询结果,搜索用时 15 毫秒
911.
912.
Physicians use the American Medical Association's Guides to the Evaluation of Permanent Impairment, 5th edition to evaluate millions of disability applicants each year. As major contributors to the chapter in the Guides devoted to assessing impairment associated with pain, we confronted the difficulties of incorporating pain into the Guides' overall evaluation system. Analysis of these difficulties is complicated by the paucity of research on the Guides, and by ambiguities and contradictions that pervade it. We propose that the ambiguities can be reduced if impairment is consistently defined in terms of organ or body part derangement, and disability in terms of activity limitations at the level of the whole person. We also propose a distinction between objective factors that may influence a person's ability to perform activities following injury. We suggest that when physicians examine disability applicants, they should evaluate both objective measures of organ or body part dysfunction and subjective reports of applicants -- especially ones regarding pain. We conclude that a comprehensive medical evaluation of disability applicant encompasses more than an impairment assessment.  相似文献   
913.
和平区社会主义学校成立于1999年。多年来,在区委、区政府,各民主党派区级组织、区党校和有关部门的关心、支持下,我们坚持以邓小平理论和“三个代表”重要思想为指导,坚持正确的办学方向,充分发挥区社校在统战教育培训中的主阵地作用,开拓进取,努力使区社校成为培养统一战线人  相似文献   
914.
This article examines the conditions under which firms in different economies were able to emerge as significant actors in the global computer industry during different time periods. To achieve this, the article divides into three periods the history of the industry in terms of the three major policy regimes that have supported the dominant firms and regions. It argues that these policy regimes can be thought of as state developmentalisms that take significantly different forms across the history of the industry. U.S. firms’ dominance over their European counterparts in the 1950s and 1960s was underpinned by a system of “military developmentalism” where military agencies funded research, provided a market and developed infrastructure, but also demanded high quality products. The “Asian Tigers”—Taiwan, Singapore, Hong Kong, and South Korea—in the 1970s and 1980s were able to eclipse their Latin American and Indian rivals due in large part to the significant advantages offered by a highly effective system of “bureaucratic developmentalism,” where bureaucratic elites in key state agencies and leading business groups negotiated supports for export performance. The 1990s saw the emergence of a system of “network developmentalism” where countries such as Ireland and Israel were able to emerge as new nodes in the computer industry by careful economic and political negotiation of relations to the United States, reestablished at the center of the industry, and by more decentralized forms of provision of state support for high-tech development. Finally, the conditions under which new regimes can emerge are a consequence of the unanticipated global consequences of previous regimes. While state developmentalisms have been shaped by existing global regimes, they have promoted further and different rounds of industry globalization. Seán ó Riain is professor of sociology at the National University of Ireland, Maynooth. His research has been primarily on the political economy of high-tech growth in Ireland and elsewhere, and on work and class politics among software developers. He is the author ofThe Politics of High Tech Growth: Developmental Network, States in the Global Economy (Cambridge, 2004).  相似文献   
915.
The case history of a suicide due to 120 stab wounds of the chest is presented. The victim was a 41 years old man with a paranoid-hallucinative psychosis. The problem to distinguish homicides and suicides is discussed by the well-known criminalistic and forensic-medical criterias. Induced by this very unusual case the autopsy material with stab wounds was analyzed retrospectively (n = 246, out of about 14,000 autopsies at the Institut of Forensic Medicine in Hamburg). Cases with more than 40 single lesions are normally homicides. However, the pattern of the injuries is more important than the number--especially in doubtful cases.  相似文献   
916.
GC-subtyping was carried out on blood stains, that had been made on glass and stored under room temperature-conditions. Using isoelectric focusing in polyacrylamide gel, followed by transfer to nitrocellulose membrane by semi-dry-electroblotting and detection with enzyme-linked antibody complex the GC-detection was possible even after 64 days. Methodical problems are discussed.  相似文献   
917.
The state and city of New York have chronic fiscal difficulties, namely, expenditures that tend to exceed revenues by significant amounts. The deficits were moderate in the 1980s but have become large and acute in the 1990s as the state and city economies have been in a prolonged recession. Deficits are expected to continue well into the future. Supply side factors, particularly high wage levels, are the main causes of the state's deficits. For the city, supply side factors, particularly high employment, and demand side factors are main causes. Federal aid reduction is a minor cause. The city's fiscal condition is compared with that of the thirty other largest U.S. cities in a regression analysis which updates Gramlich's analysis of the period immediately before the famous New York City fiscal crisis of 1975.  相似文献   
918.
Industry stakeholders and Internet experts generally agree that networks using Internet Protocol version 6 (IPv6), an Internet communications standard which is being promoted strongly by many parties, would be technically superior to today’s networks, which are largely based on IPv4. The improvements designed for IPv6 could provide numerous benefits to Internet users, network administrators, and applications developers; among these potential benefits are cost reductions due to improved security and increased efficiency, improvements to existing products and services, and innovations leading to new products and services. However, there is wide disagreement about the characteristics and timing of benefits associated with IPv6, and the costs associated with the transition could be substantial. In this paper, we will discuss the likely costs of a transition to IPv6 for the major stakeholders and the potential benefits. Subsequently, we will introduce the cost impact of an accelerated adoption case and discuss potential ways in which the government could become involved in the process. This paper is based on a broader study funded by the National Telecommunications and Information Administration (NTIA) and National Institute of Standards and Technology (NIST). We wish to thank Greg Tassey, Fred Lee, Tim Sloan, B. Keith Fulton, John Streck, and Baran Erkel for comments and suggestions on earlier versions of this paper.  相似文献   
919.
920.
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