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   1864篇
  免费   109篇
各国政治   112篇
工人农民   78篇
世界政治   183篇
外交国际关系   159篇
法律   851篇
中国共产党   1篇
中国政治   22篇
政治理论   540篇
综合类   27篇
  2023年   24篇
  2022年   11篇
  2021年   20篇
  2020年   53篇
  2019年   73篇
  2018年   81篇
  2017年   91篇
  2016年   84篇
  2015年   66篇
  2014年   88篇
  2013年   290篇
  2012年   80篇
  2011年   73篇
  2010年   56篇
  2009年   73篇
  2008年   70篇
  2007年   72篇
  2006年   61篇
  2005年   63篇
  2004年   62篇
  2003年   46篇
  2002年   45篇
  2001年   38篇
  2000年   39篇
  1999年   22篇
  1998年   19篇
  1997年   20篇
  1996年   14篇
  1995年   29篇
  1994年   12篇
  1993年   18篇
  1992年   14篇
  1991年   13篇
  1990年   14篇
  1989年   20篇
  1988年   17篇
  1987年   9篇
  1986年   19篇
  1985年   7篇
  1984年   8篇
  1983年   5篇
  1982年   8篇
  1981年   5篇
  1980年   5篇
  1979年   6篇
  1978年   4篇
  1977年   3篇
  1976年   4篇
  1973年   5篇
  1967年   3篇
排序方式: 共有1973条查询结果,搜索用时 15 毫秒
11.
12.
Technology developed in the National Aero-Space Plane (NASP) program is finding its way into a variety of applications ranging from aerospace to automotive to medical. The NASP Technology Applications Integrated Product Team (IPT) is pursuing technology transfer opportunities to promote the wide use of NASP-developed or-inspired materials in these and other industries. While product innovations and enhancements serve the commercial sector well, they also spin back to the government in the form of cheaper, higher-performing systems and components.  相似文献   
13.
Crime prevention is an activity that, sooner or later, requires the concourse of science. But the dictates of science may not mesh well with the social, institutional and political considerations that are persistent and powerful determinants of collective action. To the extent that they are ignored, crime prevention is less scientific and more pragmatic. Using a marketing metaphor, this paper examines selected aspects of the supply of and demand for scientific crime prevention in Canada and Venezuela from 1949 to the present. In both countries, academic entrepreneurs are revealed to be a necessary factor in the sale of crime prevention to government. On the demand side, governments adopt and adapt crime prevention policies in relation to their broader perspective on social problems and social change. However, rising crime rates and climates of urgency reduce the attractiveness of crime prevention. Scientific crime prevention is easier to sell when crime rates are stable or declining.  相似文献   
14.
This is the latest edition of Baker & McKenzie's column on developments in EU law relating to IP, IT and telecommunications. This article summarises recent developments that are considered important for practitioners, students and academics in a wide range of information technology, e-commerce, telecommunications and intellectual property areas. It cannot be exhaustive but intends to address the important points. This is a hard copy reference guide, but links to outside web sites are included where possible. No responsibility is assumed for the accuracy of information contained in these links.  相似文献   
15.
16.
U.S. Supreme Court Justice Thurgood Marshall offered his opinion regarding the utility of public opinion polls as a tool for assessing the “evolving standards of decency” regarding capital punishment. His arguments became known as the Marshall hypotheses and spawned a considerable body of empirical testing. The three Marshall hypotheses are: (1) support for capital punishment is inversely associated with knowledge about it, (2) exposure to information about capital punishment produces sentiments in opposition to capital punishment, but (3) exposure to information about capital punishment will have no impact on those who support it for retributive reasons. The results of previous tests of these hypotheses were somewhat mixed but supportive. None of these studies, however, examined the effects of change in knowledge levels with changes, if any, in death penalty attitudes and beliefs as needed for a more complete test of the Marshall hypotheses. The present study addressed this shortcoming. The results provided mixed support for these three hypotheses. That is, death penalty supporters were somewhat less informed than death penalty opponents; exposure to death penalty information and knowledge gains tended to be associated with attitudinal change in a directions suggested by these hypotheses; but, retributivists' attitudes toward and beliefs about capital punishment were not any more resistant to change than were the attitudes and beliefs of non-retributivists.  相似文献   
17.
Two hundred thirty four adult male inmates entering prison were randomly assigned to an early release program in either a correctional boot camp or a large, traditional prison in the Maryland state correctional system. Boot camp releasees had marginally lower recidivism compared to those released from the traditional prison. A pre-test, post-test self report survey indicated the boot camp program had little impact on criminogenic characteristics except for a lowering of self control. In contrast, inmates in prison became more antisocial, lower in self control, worse in anger management, and reported more criminal tendencies by the end of their time in prison. Criminogenic attitudes and impulses were significantly associated with recidivism. The impact of the boot camp diminished to non-significance when antisocial attitudes or anger management problems were added to the models predicting recidivism. Implications for jurisdictions considering whether to operate correctional boot camps are discussed.  相似文献   
18.
This article critically appraises the narrative of nationalist resurgence in China in the 1990s that structures much of the secondary literature on Chinese politics since Tiananmen. Adopting a post-structuralist method, Chinese texts from the 1990s are treated as discursive rather than as expressions of a common consensus, emergent ideology or political movement. This makes it possible to bring out the disparate points of view concerning the desirability of nationalism for China and to understand the strategies that are being deployed by authors within the context of everyday Chinese politics. It also reveals the significance of the absence from both the primary and the secondary texts of any mention of the advocacy of nationalism by the political leadership. When this hidden discourse is taken into account, it becomes evident that many of the texts that have been taken as expressions of a nationalist revival are either not particularly interested in nationalism or are highly sceptical concerning its possibilities for solving the problems faced by the Chinese state. Particularly significant is the way in which many of the texts locate themselves in relation to the official discourse on nationalism by appropriating its themes in order to promote and legitimate a wide range of other discourses with which it can be bound up, ranging from democracy to authoritarianism.  相似文献   
19.
20.
Telecommunications regulation has experienced a fundamentalshift from rate regulation to increased reliance on compelledaccess, perhaps best exemplified by the Telecommunications Actof 1996's imposition of no fewer than four new access requirements.Unfortunately, each access requirement is governed by a separateset of rules for determining both the scope and the price ofaccess. The resulting ad hoc regime has created difficult definitionalproblems and opportunities for regulatory arbitrage. In thisarticle we propose a system inspired by the discipline of mathematicsknown as graph theory that integrates all of the different formsof access into a single analytical framework. This system separatesdifferent access regimes into five categories: (1) retail access,(2) wholesale access, (3) interconnection access, (4) platformaccess, and (5) unbundled access. It also provides insightsinto how each type of access complicates the already difficultproblems of network configuration and management and introducesinefficient biases into decisions about network capacity anddesign. The approach we propose also provides insights intothe transaction cost implications of the different types ofaccess. Drawing on the Coasean theory of the firm, our approachexamines the tradeoffs between internal governance costs andthe external transaction costs of providing access to offera theory of network boundaries. This framework shows how accessregulation distorts networks' natural boundaries and providesa basis for evaluating whether private ordering through marketswould lead to more efficient network design.  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