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   1925篇
  免费   73篇
各国政治   135篇
工人农民   57篇
世界政治   179篇
外交国际关系   118篇
法律   861篇
中国共产党   1篇
中国政治   13篇
政治理论   620篇
综合类   14篇
  2021年   10篇
  2020年   31篇
  2019年   25篇
  2018年   50篇
  2017年   53篇
  2016年   53篇
  2015年   37篇
  2014年   34篇
  2013年   267篇
  2012年   41篇
  2011年   45篇
  2010年   45篇
  2009年   44篇
  2008年   61篇
  2007年   62篇
  2006年   71篇
  2005年   57篇
  2004年   60篇
  2003年   62篇
  2002年   69篇
  2001年   45篇
  2000年   43篇
  1999年   37篇
  1998年   27篇
  1997年   30篇
  1996年   27篇
  1995年   33篇
  1994年   25篇
  1993年   31篇
  1992年   29篇
  1991年   27篇
  1990年   28篇
  1989年   34篇
  1988年   29篇
  1987年   33篇
  1986年   26篇
  1985年   37篇
  1984年   25篇
  1983年   22篇
  1982年   23篇
  1981年   34篇
  1980年   23篇
  1979年   14篇
  1978年   12篇
  1977年   19篇
  1976年   9篇
  1975年   16篇
  1974年   10篇
  1973年   12篇
  1968年   8篇
排序方式: 共有1998条查询结果,搜索用时 15 毫秒
361.
This article explores the utility of responsive space in the context of the strategies of Sun Tzu, Mahan, Corbett and John Boyd. Responsive launch is important to applying military strategy to space for achieving space control and in protecting the space systems which are part of the United States's critical infrastructure. It follows that if responsive launch is important in achieving military strategic objectives and protecting the national critical infrastructure, implementing responsive launch must also drive changes in satellite design and operational concepts. The article discusses some of these possible changes resulting from the implementation of a doctrine of responsive launch.  相似文献   
362.
This article challenges a common viewpoint that the policy choices made by state leaders are central to explanations of economic growth. It argues that there are two possible flaws in this viewpoint. First, that state leaders have a free choice in policy decisions; second, that it is policies that in large part determine growth rates. Using a set of variables designed to capture the weakness of the policy autonomy of the state and possible non‐policy influences on growth rates, the article concludes that initial conditions are a better determinant of wealth and growth than free policy choice.  相似文献   
363.
The OSCE is little understood outside diplomatic circles, but has a unique and increasing role in encouraging European peace and stability. The article highlights the OSCE's historical development and its more recent role in the European security structure. The OSCE mission in Latvia, tracking the country's language and citizenship issue, is illustrative of the organization's unusual charter. A second section attempts to fix the OSCE within the context of contemporary international theory and the developing literature on nongovernmental organizations (NGOs). With a broad but thin mandate, the organization manages regime activity left over from NATO and EU disinterest or immobility and, with its extensive grassroot efforts at problem‐solving, functions much like an NGO. OSCE success may lie in the combination of regime and NGO attributes, allowing it to move easily both within and outside of formal governmental structures.  相似文献   
364.
A new form of “entertaining news,” accessed by most through television, has become a privileged domain of politics for the first time in countries “beyond the West” in the Middle East, Africa, and Asia. What are the political consequences of this development: What is the relationship between media and politics in these regions? We answer these questions through a case study of India, the world's largest democracy, where two decades of media expansion and liberalization have yielded the largest number of commercial television news outlets in the world. We show why prevailing theories of media privatization and commercialization cannot account for the distinctive architecture of media systems in places like India. In this article, we first provide an overview of the historical and contemporary dynamics of media liberalization in India and the challenges that this poses to existing models and typologies of the media-politics relationship. We then present a new typology of media systems and a theoretical framework for studying the relationship between television news and democratic politics in India, and by extension in the global South. In the concluding section, we reflect on the broader comparative insights of the essay and discuss directions for future research. We believe that our alternative comparative framework captures more meaningfully the diversity and complexity of emerging media systems and their relationships to democratic practice in these regions.  相似文献   
365.
This paper describes a method for determining the density of contact trace objects with magnetic levitation (MagLev). MagLev measurements accurately determine the density (±0.0002 g/cm3) of a diamagnetic object and are compatible with objects that are nonuniform in shape and size. The MagLev device (composed of two permanent magnets with like poles facing) and the method described provide a means of accurately determining the density of trace objects. This method is inexpensive, rapid, and verifiable and provides numerical values—independent of the specific apparatus or analyst—that correspond to the absolute density of the sample that may be entered into a searchable database. We discuss the feasibility of MagLev as a possible means of characterizing forensic‐related evidence and demonstrate the ability of MagLev to (i) determine the density of samples of glitter and gunpowder, (ii) separate glitter particles of different densities, and (iii) determine the density of a glitter sample that was removed from a complex sample matrix.  相似文献   
366.
Revising the sentencing procedural process for convicted offenders is identified as being a key intervention point in reforming the current ineffective correctional system. A new procedural system for determining the disposition of convicted individuals is advanced which is designed to make correctional supervision more effective in curbing recidivism. If this proposed system is adopted by other countries, the rate of recidivism will be substantially reduced. Included in the recommendations are: requiring extensive testing of offenders' needs and goals in a community-based center prior to sentencing, reassignment of sentencing responsibility from criminal trial judges to a Dispositions Board, and giving supervisees an option to develop achievement contracts guaranteeing supervision release upon completion of the contract terms.  相似文献   
367.
Universities have traditionally had a vested interest in the civic preparation of students. In order to understand the unique situation of this population of students in a university serving non-traditional community students, qualitative data was used to identify pathways and barriers associated with their civic engagement. Results suggest themes associated with time, knowledge, and access.  相似文献   
368.
The theoretical literature on party mergers is thin. This article draws upon organisational behaviour research to create an analytical framework that is suitable for explaining the processes inherent in party mergers. The authors operationalise this framework by examining two cases of party merger: in Germany, between the Party of Democratic Socialism (PDS) and the Electoral Alternative for Labour and Social Justice (WASG) in 2006/07, and in the Netherlands, between four small parties to form Groenlinks (Green Left) in 1989–91. They conclude that the two cases demonstrate definable steps and processes that are inherent to mergers, and they welcome further applications of this framework in other settings.  相似文献   
369.
370.
This article seeks to establish, in a definitive manner, what the US knew about the Suez invasion plan of 1956.

With the benefit of the CIA's U‐2 reconnaissance plane, the US was able to pinpoint, as of mid‐October, the existence of nearly three times the number of Mystère fighters in Israel than had previously been notified to Washington by the French government. That plus an information blackout on the part of the British and the French, and the breakdown of negotiations with the Egyptians at the UN, roused Washington's apprehensions that a military option was being considered. However, though there was suspicion on the part of the US that an Israeli‐French operation might be in the offing, Washington never seriously focused on the possibility of a tripartite operation involving the British, the French, and the Israelis. President Eisenhower and Secretary of State Dulles relied on the Anglo‐American special relationship and on British good sense not to get involved. In particular, Washington completely missed the fact of the British‐French‐Israeli meeting at Sèvres, at which time (24 October), the decision was taken to launch the operation five days later. The transparent nature of the British‐French announced decision, after the Israeli attack, to ‘separate’ the Egyptian and Israeli forces doomed the operation from the start before the court of world opinion. In this manner, Operation ‘Separation of Forces’ was transformed into a force.  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