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   1944篇
  免费   67篇
各国政治   155篇
工人农民   113篇
世界政治   218篇
外交国际关系   93篇
法律   880篇
中国政治   8篇
政治理论   525篇
综合类   19篇
  2023年   18篇
  2022年   9篇
  2021年   16篇
  2020年   26篇
  2019年   41篇
  2018年   62篇
  2017年   63篇
  2016年   81篇
  2015年   32篇
  2014年   59篇
  2013年   303篇
  2012年   50篇
  2011年   52篇
  2010年   40篇
  2009年   50篇
  2008年   59篇
  2007年   62篇
  2006年   42篇
  2005年   45篇
  2004年   55篇
  2003年   53篇
  2002年   48篇
  2001年   52篇
  2000年   66篇
  1999年   36篇
  1998年   30篇
  1997年   28篇
  1996年   16篇
  1995年   16篇
  1994年   26篇
  1993年   21篇
  1992年   29篇
  1991年   34篇
  1990年   37篇
  1989年   26篇
  1988年   22篇
  1987年   23篇
  1986年   18篇
  1985年   33篇
  1984年   19篇
  1983年   23篇
  1982年   24篇
  1981年   13篇
  1980年   12篇
  1979年   22篇
  1977年   9篇
  1976年   11篇
  1974年   9篇
  1973年   17篇
  1972年   9篇
排序方式: 共有2011条查询结果,搜索用时 15 毫秒
91.
Abstract: Everyone is doing a code of ethics. But when can codes do good? To find out we interviewed New South Wales parliamentarians about their perceptions of corruption in 10 scenarios weighted from least to most corrupt. The cases were drawn from John Peters and Susan Welch's theory of corruption. We note similar studies in the United States and Canada. There is confusion about ethics, and we note that the episodes of corruption in the 1980s suggest ethical standards could be elevated. Perhaps the most significant conclusion is that parliamentarians come to think alike about corruption in the middle of their careers. Those who want to see ethics enhanced should aim at induction, education, and counselling within parliament. Here codes, if supported, have a role to play. Improvement will not be achieved by searching for a saintly parliamentarian. We found those most sensitive to corruption to be the least and most senior members.  相似文献   
92.
A transaction-based approach to policy intervention is presented. The approach overcomes a number of weaknesses in current approaches to policy intervention. The approach involves three main conceptual elements: transactions, transaction governance mechanisms, and governance principles. The transaction is taken to be the basic unit of analysis. Profiles of transactions vary along a number of transaction dimensions. Transaction governance mechanisms - such as, for example, government service, regulation, contracts, vouchers, markets, taxes, and self-service - are each suitable for governing transactions having particular profiles. A mechanism will fail when used to govern transactions not fitting the profile. Governance principles are criteria or expectations - for example, efficiency, justice and liberty - used to judge how well a mechanism fulfills or achieves important societal goals. Specific choices of governance mechanisms (from the set that are technically feasible) therefore should be made according to how well they satisfy these governance principles. Public high school education is used as an example to illustrate the approach. A number of conclusions are offered.This is a revised version of a paper presented at the Annual Meeting of the American Society for Public Administration Portland, Oregon, April, 1988.  相似文献   
93.
Books in review     
A former editor of theAmerican Historical Review, he has written extensively on the history of modern Great Britain and more recently has published essays on the nature of the contemporary urban university.  相似文献   
94.
95.
96.
97.
98.
B. Reviews     
THE CAMBRIDGE HISTORY OF ARABIC LITERATURE. Volume 1: Arabic Literature to the End of the Unayyad Period. Edited by A.F.L. Beeston, T.M.Johnstone, R.B.Serjeant and G.R.Smith, pp.xvi, 547. Cambridge University Press, 1983. £37.95.

AL‐MAQRIZI'S “BOOK OF CONTENTION AND STRIFE CONCERNING THE RELATIONS BETWEEN THE BANU UMAYYA AND THE BANU HASHIM”. Translated into English, with an introduction and commentary by C.E.Bosworth. (Journal of Semitic Studies, Monograph No.3), Manchester, Department of Near Eastern Studies, University of Manchester, 1980. pp.157.

ARABIC CULTURE THROUGH ITS LANGUAGE AND LITERATURE. By M.H. Bakalla. London, Kegan Paul International, 1984. pp.371, 51, plates, maps.

ARABIC LINGUISTICS: AN INTRODUCTION AND BIBLIOGRAPHY. By M.H. Bakalla. London, Mansell, 1983. pp.742.

LA RELATION DE THOMAS PELLOW: UNE LECTURE DU MAROC AU 18e SIÈCLE. By Magali Morsy. (Synthèse No.12), Paris, Editions Recherche sur les Civilisations, 1983. pp.254, 17pl. FF.129.

ESPANA Y EL NORTE DE AFRICA: EL PROTECTORADO DE MARRUECOS (1912–56). By Victor Morales Lezcano. Madrid, Universidad Nacional de Educacion a Distancia, 1984. pp.249. Photos., maps, diagrams. 600.00 ptas.

EGYPT AND THE PALESTINE QUESTION 1936–1945. By Thomas Mayer. Berlin, Klaus Schwarz Verlag, 1983. pp.391 (paperback).

SUDAN. By M.W.Daly. (World Bibliographical Series, Vol.40.) Oxford (UK) & Santa Barbara (USA), Clio Press, 1983. pp.xvi, 176, 1 map. £19.50.

THE OTHER FACE OF OPEC: FINANCIAL ASSISTANCE TO THE THIRD WORLD. ENERGY RESOURCES AND POLICIES OF THE MIDDLE EAST AND NORTH AFRICA. By Ibrahim F.I. Shihata. London, Longman, 1982. pp.281 (paperback).

DEVELOPING EDUCATION SYSTEMS IN THE OIL STATES OF ARABIA: CONFLICTS OF PURPOSE AND FOCUS. By J.S.Birks and J.A.Rimmer. (Occasional Papers Series, No.21: Manpower and Migration Series, no.3). University of Durham, Centre for Middle Eastern and Islamic Studies, 1984. pp.33. E2.50.

BIBLIOGRAPHICAL GUIDE TO IRAN: THE MIDDLE EAST LIBRARY COMMITTEE GUIDE. Edited by L.P.Elwell‐Sutton. Sussex, The Harvester Press/New Jersey, Barnes & Noble Books, 1984. pp.462.

ARABISCHE UND PERSISCHE PRIVATURKUNDEN DES 12. UND 13. JAHRHUNDERTS AUS ARDABIL (ASERBEIDSCHAN). By Monika Gronke. (Islamkundliche Untersuchungen, Bd 72), Berlin, Klaus Schwarz Verlag, 182. pp.555.

MYSTICISM AND DISSENT: SOCIORELIGIOUS THOUGHT IN QAJAR IRAN. By Mangol Bayat. Syracuse, N.Y., Syracuse U.P., 1982. pp.xvii, 228. $25.00.

SOCIAL DISINTEGRATION AND POPULAR RESISTANCE IN THE OTTOMAN EMPIRE 1881–1908: REACTIONS TO EUROPEAN ECONOMIC PENETRATION. By Donald Quataert. New York, Columbia U.P., 1983. pp.xxii, 205. $45.50.  相似文献   

99.
100.
Since 1958 NASA has invested approximately $3.7 billion in life sciences R&D in the support of the successful human space flight program. There are numerous studies documenting the spin-off technologies that can be traced to NASA research and development activities. Most of these studies describe the technologies and their uses; however only a few measure the economic impact of the spin-offs and most of these are benefit/cost studies that tend to overstate benefits or underestimate costs. This study takes a different approach, measuring only economic impacts to the companies that developed successful spin-off products from NASA life sciences investments. A personal interview was conducted with each company and the benefits are conservatively estimated as the value-added by the NASA technology to the company's output and the amount of additional private R&D stimulated by the NASA R&D.This pilot study of fifteen companies, using a very conservative measurement technique, found a large return to companies that have successfully commercialized NASA life sciences spin-off products. Value-added benefits totaled over $3.7 billion in life sciences R&D in the support of the successful human space flight program. There are numerous studies documenting the spin-off technologies that can be traced to NASA research and development activities. Most of these studies describe the technologies and their uses; however only a few measure the economic impact of the spin-offs and most of these are benefit/cost studies that tend to overstate benefits or underestimate costs. This study takes a different approach, measuring only economic impacts to the companies that developed successful spin-off products from NASA life sciences investments. A personal interview was conducted with each company and the benefits are conservatively estimated as the value-added by the NASA technology to the company's output and the amount of additional private R&D stimulated by the NASA R&D.This pilot study of fifteen companies, using a very conservative measurement technique, found a large return to companies that have successfully commercialized NASA life sciences spin-off products. Value-added benefits totaled over 1.5 billion and a NASA R&D total investment in these 15 technologies of 64 million was found to stimulate an additional64 million was found to stimulate an additional 200 million in private R&D.  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