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   10220篇
  免费   304篇
各国政治   289篇
工人农民   486篇
世界政治   604篇
外交国际关系   310篇
法律   6577篇
中国共产党   34篇
中国政治   127篇
政治理论   1961篇
综合类   136篇
  2021年   62篇
  2020年   148篇
  2019年   131篇
  2018年   206篇
  2017年   244篇
  2016年   279篇
  2015年   227篇
  2014年   224篇
  2013年   838篇
  2012年   241篇
  2011年   280篇
  2010年   213篇
  2009年   279篇
  2008年   336篇
  2007年   348篇
  2006年   331篇
  2005年   302篇
  2004年   295篇
  2003年   243篇
  2002年   239篇
  2001年   352篇
  2000年   325篇
  1999年   258篇
  1998年   156篇
  1997年   113篇
  1996年   140篇
  1995年   115篇
  1994年   130篇
  1993年   126篇
  1992年   198篇
  1991年   249篇
  1990年   213篇
  1989年   198篇
  1988年   222篇
  1987年   201篇
  1986年   220篇
  1985年   192篇
  1984年   163篇
  1983年   157篇
  1982年   102篇
  1981年   122篇
  1980年   101篇
  1979年   102篇
  1978年   89篇
  1977年   77篇
  1976年   64篇
  1975年   64篇
  1974年   65篇
  1973年   77篇
  1971年   50篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
73.
The article deals with experimental data on design of the method used for detection of sperm, blood and vaginal secretions according to isoelectric points of acid phosphatases, differential diagnosis of ABO group antigens in "mixed" stains as well as detection of phenotype of red cell acid phosphatase by isoelectric focusing method.  相似文献   
74.
The political feasibility of protectionist policies that regulate international industry derives from the absence of overt collusion among domestic import-competing producers. The regulation of international industry cannot be explicit since governments would thereby be perceived to be approving (or instigating) international collusion. Hence, voluntary export restraints have been popularly presented with a focus on the difficulties confronted by domestic import-competing producers and a de-emphasis on the mutual gains to domestic and foreign producers from monitoring by a foreign government of a restrictive export cartel arrangement. Similarly, trigger-price mechanisms have popularly been explained in terms of the need for anti-dumping measures to preserve fair competition. Likewise, the involuntary export tax derived in the first instance from an administratively validated (but, as demonstrated by Kalt's econometric analysis, contentious) complaint of unfair foreign competition. Voluntary export restraints, trigger-price mechanisms, and involuntary export taxes are however protectionist devices, the beneficiaries of which can transcend national jurisdictions, and which have in common the characteristic that the gains to domestic industry interests derive from the regulation of foreign competitors.A previous version of this paper was presented at a conference on Economics and Power organized by the FWS Institute of Zug and held at Interlaken, Switzerland in July 1988.  相似文献   
75.
This paper departs from the Tullock cost paradigm that views competition for monopoly privilege as a welfare-inimical process that wastefully dissipates preexisting producers' surplus and, occasionally, leads to inefficient increases in costs and counterproductive uses of scarce resources. The potential availability of rent-seeking may bring about the elimination of inefficient regulatory regimes that retard or prevent the introduction of cost-reducing innovations. Air quality management is but one area in which innovation rent-seeking holds promise for concrete welfare gains. Researchers may wish to focus on institutional mechanisms designed to overcome the transactions costs and free rider disincentives to the formation of a coalition to seek innovation rents. An example of such a mechanism might be a joint venture that requires all venture members to engage in lobbying and to contribute to collective research efforts. These unaddressed questions await future research.The authors are grateful for the insightful comments of Gordon Tullock, Robert D. Tollison, Michael T. Marlow and J.R. Clark. The usual caveats apply. The views expressed herein are solely those of the authors and should not be taken to represent the views of their employers.  相似文献   
76.
77.
Public preferences about the availability of abortion under various circumstances have remained fairly stable over time. Yet a standard CBS/New York Times abortion question indicates that a significant shift in opinion occurred during the 1980s, whereby the public became increasingly supportive of legalized abortion as it is now. These very different patterns of public opinion about abortion suggest that the public perceived a shift in the abortion status quo, toward more restricted access, over time, and became more supportive of current abortion policy.A model of support for legalized abortion as it is now is developed that incorporates the influences of court activities and interest-group behavior. The analysis indicates that the public reacted directly to the activities of the courts, becoming more supportive of current abortion policy in response to media coverage of court cases that challenged the abortion status quo and Supreme Court nominations and confirmations. Although absolute preferences remained largely unchanged, it appears the public perceived an increasing threat to the status quo and became correspondingly less enamored with further restrictions on the availability of abortion.  相似文献   
78.
79.
This study explores the experience of ten possible beneficiaries of the measures provided by the Chilean government during the first year of the COVID-19 pandemic through remote semi-structured interviews. The results show a scenario of improvisation. Instead of relying on solid gender equity policies, a patchwork of focused measures was implemented, which increased uncertainty and vulnerability. As a result, women experienced sorrow and despair while facing economic constraints and care tasks mostly on their own. This article shows that care remains invisible in politics while overwhelmingly evident at home. Social care policies are urgently needed.  相似文献   
80.
Book reviews     
Roland Axtmann, Liberal democracy into the twenty‐first century: Globalization, integration and the nation‐state (Manchester University Press, Manchester, 1996), 198 pp., ISBN 0–7190–4304–2 (hb), 0–7190–4305–0 (pb)

Paul Kapteyn, The Stateless Market: The European Dilemma of Civilization (Routledge, London and New York, 1996), 194 pp., ISBN 0–415–12232–5 (hb), 0–415–12233–3 (pb)

Richard Werbner and Terence Ranger (eds), Postcolonial Identities in Africa (Zed Books, London & New Jersey, 1996), 292 pp., ISBN 1–85649–415–2 (hb), 1–85649–416–0 (pb)

Mark Wheeler, Politics and the Mass Media (Blackwell, Oxford, 1997), 274 pp., ISBN 0–631–19783–4 (hb), 0–631–19784–2 (pb)

Nigel Harris, The New Untouchables: Immigration and the New World Worker (Penguin Books, London, 1995), 254 pp., ISBN 0–14–014689‐X (pb)

Gilles Kepel, Allah in the West (Polity Press, Cambridge, 1997), 273 pp., ISBN 0–7456–1557–0 (hb), 0–7456–1558–9 (pb)

Leonard Weinberg, The Transformation of Italian Communism (Transaction Publishers, New Brunswick, New Jersey, 1995), 147 pp., ISBN 1–56000–180–1 (hb)

Brian Jenkins and Spyros A. Sofos (eds), Nation and Identity in Contemporary Europe (Routledge, London, 1996), x + 294pp., ISBN 0–415–12312–7 (hb), 0–415–12313–5 (pb)

Stuart Parkes, Understanding Contemporary Germany (Routledge, London, 1997), 247 pp., ISBN 0–415–14123–0 (hb), 0–415–14124–9 (pb)  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