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   286篇
  免费   13篇
各国政治   28篇
工人农民   11篇
世界政治   24篇
外交国际关系   14篇
法律   178篇
中国共产党   1篇
政治理论   42篇
综合类   1篇
  2023年   2篇
  2022年   3篇
  2021年   3篇
  2020年   8篇
  2019年   6篇
  2018年   11篇
  2017年   10篇
  2016年   12篇
  2015年   11篇
  2014年   14篇
  2013年   40篇
  2012年   10篇
  2011年   6篇
  2010年   8篇
  2009年   7篇
  2008年   12篇
  2007年   21篇
  2006年   11篇
  2005年   8篇
  2004年   16篇
  2003年   14篇
  2002年   13篇
  2001年   5篇
  2000年   4篇
  1999年   4篇
  1998年   4篇
  1996年   2篇
  1995年   2篇
  1994年   2篇
  1993年   2篇
  1992年   1篇
  1991年   1篇
  1990年   1篇
  1989年   6篇
  1988年   3篇
  1987年   2篇
  1986年   1篇
  1984年   3篇
  1983年   2篇
  1982年   1篇
  1981年   1篇
  1979年   1篇
  1974年   1篇
  1972年   1篇
  1971年   2篇
  1970年   1篇
排序方式: 共有299条查询结果,搜索用时 15 毫秒
91.
Abstract: This article is intended to give an overview of the law as it stands on telecommunications at the Community level. Over the past ten years the telecommunications law and policy of the European Community have developed rapidly along the twin axes of liberalisation (deregulation) and harmonisation (reregulation). The innovative use of Article 90 EEC has been central to liberalisation, while most harmonisation legislation has been based on open network provision (ONP) passed under Article 100a. The article concludes that, now the national monopolies have been largely dismantled, new issues will arise in the competitive market.  相似文献   
92.
93.
The U.S. incarceration rate rose dramatically over the past 45 years, increasing the number of marriages and cohabiting unions disrupted by a jail or prison stay. But as some have pointed out, not all unions dissolve as a result of incarceration, and there seems to be racial–ethnic variation in this tendency, with Blacks displaying higher rates of dissolution than Whites and Hispanics. Yet it is unclear what explains racial–ethnic differences in union dissolution among the incarcerated. Drawing on the National Longitudinal Survey of Youth 1997 (NLSY97), we examine why racial–ethnic differences in union dissolution exist among a sample of individuals who had a marital or a cohabiting union interrupted by an incarceration spell. In doing so, we draw on social exchange theory and structural and cultural theories to suggest that racial–ethnic disparities in union dissolution are explained by differential exposure to protective relationship characteristics. The results of Cox hazard models reveal that Blacks have significantly higher hazards of union dissolution than do Whites and Hispanics. These results also indicate that being married, having a child together, having full-time employment, a longer union duration, and a shorter incarceration spell may protect against dissolution and that these factors account, in part, for the greater risk of dissolution among Blacks relative to Whites and Hispanics.  相似文献   
94.
Psilocin (4-hydroxy-N,N-dimethyltryptamine, 4-HO-DMT) and bufotenine (5-hydroxy-N,N-dimethyltryptamine, 5-HO-DMT), which are both naturally occurring compounds, are classified as controlled substances in numerous countries due to their pharmacological activities and recreational usage. There are two other benzene ring regioisomers, 6-hydroxy-N,N-dimethyltryptamine (6-HO-DMT) and 7-hydroxy-N,N-dimethyltryptamine (7-HO-DMT), which are not classified by name as controlled substances, and which were synthesized for this current work. The four isomers were analyzed using routine methodologies employed by the Israel's Police Division of Identification and Forensic Science (DIFS) Laboratory, namely thin layer chromatography (TLC), Fourier transform infrared spectroscopy (FTIR), and gas chromatography mass spectroscopy (GC-MS). It was found possible to differentiate the four isomers. Forensic specimens that were suspected to be psilocybe mushrooms were examined, confirming that it is now possible to unequivocally identify the presence of psilocin and rule out the presence of its other isomers.  相似文献   
95.
96.
What kind of thing is the economy, and how might we act to change it? This article draws on the work of Timothy Mitchell and J. K. Gibson-Graham to suggest that the economy may be fruitfully understood as a structural effect, or an appearance of difference maintained through the repetition of acts and practices. It then employs Reinhart Koselleck’s theory of conceptual change to argue that the economy effect may be altered through efforts aimed at conceptual innovation. If the economy effect is maintained through repeated acts and practices that delineate the distinction between the economy and everything else, then conceptual innovation with respect to those concepts that inform these acts and practices could alter the manner in which this distinction is produced. The benefit (or public interest) corporation serves as an example of how such efforts at conceptual innovation might produce change in the structural effect that we call “the economy.”  相似文献   
97.
This article argues that the efforts of policy‐makers to avoid conflict in the short run can be counterproductive in the long run. Not only may policy‐makers fail to reap the benefits of conflicts when they try to steer clear, but conflict may actually increase rather than diminish. We study conflict through the conceptual lens of (de)politicization in the lengthy and highly contested policy‐making process over the multibillion‐euro ‘Oosterweelconnection’ highway in Antwerp (Belgium). An in‐depth media analysis of 739 articles is combined with data from 32 narrative interviews. We conclude that efforts to end public debate through depoliticization can have a boomerang effect, in which conflict disappears only temporarily, and that these efforts can ultimately increase conflict while wasting engagement and creativity. More attention to the productive aspects of conflict is needed in public administration literature and practice.  相似文献   
98.
99.
Ohne Zusammenfassung Ich danke meiner Mitarbeiterin Andrea Iff für ihren eigenen Diskussionsbeitrag zum Thema, von dem ich viel gelernt habe, sowie Adrian Vatter und Stephan Heichel (Universit?t Konstanz) für kritische Kommentare.  相似文献   
100.
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