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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   
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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   
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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   
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Book reviews     
Turkey in the Middle East By Philip Robins. Pinter for the Royal Institute of international Affairs. 1991.130 pp. £22.50. ISBNO 86187 198 7. PBk £8.95. ISBN 0 86187 1995.

Hitler Slept Late and other blunders that cost him the war By James P. Duffy. London: Praeger. 1991.176pp. £17.50.

Alliance within the alliance: Franco‐German Military Cooperation and the European Pillar of Defense By David G. Haglund. Boulder: Westview Press, 1991. 213 pp.

Homeward Bound? Allied Forces in the New Germany Edited by David G. Haglund and Olaf Mager. Boulder: Westview Press, 1992. 299 pp. £24.95

Avoiding War: Problems of crisis management By Alexander L. George (ed.), Westview Press, 1991. 590 pp. £16.95.

The Future of NATO: Facing an Unreliable Enemy in an Uncertain Environment By S.N. Drew et al. Praeger Publishers, New York, 1991. pp. 206.

Parliament and international relations Edited by Charles Carstairs and Richard Ware. Milton Keynes: Open University Press, 1991. 195 pp. £12.99 (paperback)  相似文献   

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Conclusion Evaluating mediators is a complex process, but not an impossible one. While no single solution is likely to be found, a set of options is emerging. Any new refinement, admittedly, brings with it new difficulties, and the options laid out here are themselves complex to administer. An adroit program management may be able to put together relatively quickly a workable, efficient, and fair approach to evaluation that is tailored to its own circumstances. But most likely, the process of developing evaluation tools will require sustained effort, justified partly by recognition that only trial and error will eventually produce a result keyed to the program's, the parties', and the mediators' diverse needs.Nevertheless, it should be apparent that avoidance of the problems is no longer an acceptable strategy. In an era when rational standards for judging the elements of mediators' effectiveness are becoming more refined, and when mediation itself is becoming an increasingly common option for resolving all kinds of disputes, retaining public confidence in any program will demand that the program devote time and effort to evaluating and strengthening its most important resources. Christopher Honeyman has played a variety of dispute resolution roles including mediator, arbitrator, and administrative law judge in cases involving labor and environmental issues, for the State of Wisconsin Employment Relations Commission (P.O. Box 7870, Madison, Wis. 53707-7870) and for other programs.An earlier version of this article was presented under the title Problems in Evaluating Mediators, at the North American Conference on Peacemaking and Conflict Resolution, Montreal, Quebec, March, 1989.Christina Sickles Merchant, Byron Yaffe, Stephen Goldberg, Jeanne Brett and Martha Askins offered detailed and helpful critiques of earlier drafts of this work. I am particularly grateful to the mediators of Maine's Court Mediation Service and to its directors, Jane Orbeton and the late Lincoln Clark, for their willingness to take the risks of applying an untried theory and their help in developing it. And once again, my colleagues at the Wisconsin Employment Relations Commission provided numerous and significant comments and criticisms which have corrected my thinking on a number of points. However, the opinions expressed here are the author's, and do not necessarily reflect the policy of the WERC.  相似文献   
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