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   1926篇
  免费   104篇
各国政治   167篇
工人农民   66篇
世界政治   196篇
外交国际关系   162篇
法律   770篇
中国政治   23篇
政治理论   624篇
综合类   22篇
  2023年   10篇
  2022年   7篇
  2021年   16篇
  2020年   33篇
  2019年   61篇
  2018年   57篇
  2017年   77篇
  2016年   101篇
  2015年   57篇
  2014年   71篇
  2013年   338篇
  2012年   61篇
  2011年   53篇
  2010年   58篇
  2009年   68篇
  2008年   68篇
  2007年   81篇
  2006年   78篇
  2005年   69篇
  2004年   53篇
  2003年   70篇
  2002年   67篇
  2001年   35篇
  2000年   50篇
  1999年   33篇
  1998年   48篇
  1997年   28篇
  1996年   32篇
  1995年   31篇
  1994年   23篇
  1993年   15篇
  1992年   23篇
  1991年   7篇
  1990年   20篇
  1989年   7篇
  1988年   22篇
  1987年   17篇
  1986年   6篇
  1985年   4篇
  1984年   8篇
  1983年   8篇
  1982年   7篇
  1981年   8篇
  1980年   5篇
  1979年   9篇
  1978年   3篇
  1977年   7篇
  1975年   3篇
  1974年   3篇
  1970年   3篇
排序方式: 共有2030条查询结果,搜索用时 15 毫秒
111.
The study reported in this paper explores how effective Public Private Partnerships (PPP) have been as critical providers of capital assets within the state education sector in the UK. Specifically, the research investigates the impact on educational provision of the UK government's contentious £43 billion Private Finance Initiative (PFI). The inquiry focuses on 27 English Local Education Authorities (LEAs) currently or recently involved in PFI. The investigation examines the effect of PFI's on LEA decision‐making processes and discusses these authorities assessment of the UK government's current PFI strategy. An evaluation of PFI as a source of sustainable finance is reported as well as recommendations made for LEAs currently considering adoption of PFI. Through such analysis, this study seeks to de‐layer and ascertain the influence of complex external environmental influences and stakeholders that need to be taken into account in order to make PPPs work. The paper concludes by presenting the critical considerations for enhancing the working relationship between private and public sector partners. Copyright © 2007 John Wiley & Sons, Ltd.  相似文献   
112.
113.
Andrew Mack 《East Asia》1992,11(2):21-34
During the past five years there have been a growing number of proposals for dialogue, “regimes” and other cooperative institutions designed to enhance regional security. This article critically evaluates the key proposals and notes the objections that have been raised against them. It goes on to argue that many of these objections are without validity. The article contrasts the considerable progress in this area, which has been achieved in Southeast Asia with the absence of progress in Northeast Asia — and suggests some reasons for the difference. The article concludes with an analysis of some of the contradictory elements of such concepts as “cooperative security,” “security cooperation” and “common security,” which are gaining increasing currency in the region.  相似文献   
114.
This attempt to classify Social Security beneficiaries by type of benefit using the new Survey of Income and Program Participation (SIPP) has yielded promising results. Evaluations of the classification algorithm based on comparison of the estimated number of beneficiaries in each of the several categories to independent estimates of the number of beneficiaries indicate that in most instances a high percentage of each category has been identified. For the most part, age and monthly benefit amount size distributions seem reasonable. Furthermore, very few persons in the sample who were identified as Social Security beneficiaries could not be assigned to one or another of the benefit groups. The classification procedure also represents a marked improvement over earlier efforts to classify type of beneficiary that relied on data from the March Supplement to the Current Population Survey (CPS). Most importantly, the benefit classification scheme based on SIPP data appears to provide reasonably reliable distinctions between retired-worker and widow benefits for widowed women and permits the identification of retired-worker benefits for those women dually entitled to retired-worker and spouse benefits. In addition, the distinction between disabled- and retired-worker benefits for recipients aged 62-64 appears to be reasonably reliable, and for women under age 65, the classification procedure distinguishes between disabled-worker benefits on the one hand and widow and widowed mother benefits on the other. Finally, SIPP procedures for identifying minor child beneficiaries yield markedly better estimates than those available from the Current Population Survey. These improvements in the SIPP context are due entirely to the presence of information not collected in the CPS. The enhancement of the SIPP data set in turn resulted directly from an assessment of earlier work carried out by Projector and Bretz in the CPS context and on extensive research into the nature of Social Security reporting errors in the CPS. The superiority of the SIPP data set is linked principally to the presence of three pieces of information: the Medicare BIC, the direct question on reasons for benefit receipt asked of persons under age 65, and the direct measurement of recipiency and amount of benefits for minor children. Other items of some import include self-reported work disability, retirement status (ever retired from a job), previous marital status for currently married women, age first prevented from working due to a health condition, and Supplemental Security Income misreporting items.(ABSTRACT TRUNCATED AT 400 WORDS)  相似文献   
115.
116.
117.
Reviews     
AIDS in Africa: The Social and Policy Impact edited by Norman Miller and Richard C. Rockwell Edwin Mellen Press, Lewiston (New York) and Queenston (Ontario), 1988. xxxi plus 336 pp. including map, tables, figures, notes, appendices and selected bibliographies. $110,00.

The Politics of Africa's Economic Stagnation by Richard Sandbrook Cambridge University Press, Cambridge, 1985. xiii plus 180 pp. including map, tables, notes and index. R.25,50 paperback.

Imperialism and Dependency: Obstacles to African Development by Daniel A. Offiong Howard University Press, Washington, DC, 1982. 304 pp. including tables, bibliography and index. $6,95 paperback.

Early Field Recordings: A Catalogue of Cylinder Collections at the Indiana University Archives of Traditional Music edited by Anthony Seeger and Louise S. Spear Indiana University Press, Bloomington, 1987. xviii plus 198 pp. $22,50.

Western Sahara: The Roots of a Desert War by Tony Hodges Lawrence Hill and Co., Westport (Connecticut), 1983. xii plus 388 pp. including maps, illustrations, tables, notes, appendix, bibliography and index. £6,95 paperback.

Somalia: Nation in Search of a State by David D. Laitin and Said S. Samatar Westview Press, Boulder (Colorado), and Gower, London, 1987. xvii plus 198 pp. including maps, illustrations, figures, tables, notes and index. $28,00.

Superpower Diplomacy in the Horn of Africa by Samuel M. Makinda Croom Helm, London and Sydney, 1987. 242 pp. including notes, appendices, select bibliography and index. £22,50.

Industrialization in West Africa by J.O.C. Onyemelukwe Croom Helm, London, 1984. v plus 226 pp. including tables, figures, bibliography and index. £17,95.

Modern Kongo Prophets: Religion in a Plural Society by Wyatt MacGaffey Indiana University Press, Bloomington, 1983. xiii plus 285 pp. including tables, figures, illustrations, notes, references and index. $12,00 paperback.

Naissance du Mozambique: Résistance et Révoltes Anticoloniales, 1854–1918 (Two Volumes) by René Pélissier Editions Pélissier, Orgeval (France), 1984. 833 pp. including maps, tables, notes, bibliography and index. $45,00 paperback.

The Political Economy of Namibia: An Annotated, Critical Bibliography by Tore LinnÉ Eriksen with Richard Moorsom Scandinavian Institute of African Studies, Uppsala, 1985. 423 pp. including map and authors’ index. SEK 110.

The Bureaucratic Struggle for Control of US Foreign Aid: Diplomacy versus Development in Southern Africa by Caleb Rossiter Bowker Publishing Co., Epping (England), and Westview Press, Boulder (Colorado), 1985. xiii plus 250 pp. including figures, tables, notes, bibliography and index. $25,50 paperback.

The Politics of Economic Power in Southern Africa by Ronald T. Libby Princeton University Press, Princeton (New Jersey), 1987. xxiii plus 361 pp. including maps, tables, bibliography and index. $45,00. $14,50 paperback.

South Africa in Crisis edited by Jesmond Blumenfeld Croom Helm, London, 1987. x plus 207 pp. including tables, notes and index. £19,95.

Pass Controls and the Urban African Proletariat in South Africa By Doug Hindson Ravan Press, Johannesburg, 1987. xii plus 121 pp. including notes, bibliography and index. R 14,00 paperback.

Hidden Struggles in Rural South Africa: Politics and Popular Movements in the Transkei and Eastern Cape, 1890–1930 by William Beinart and Colin Bundy Ravan Press, Johannesburg, 1987. xxvi plus 326 pp. including illustrations, maps, notes and index. R24,00 paperback.  相似文献   

118.
119.
An ordnance-disposal expert was killed while disposing of a cache of explosives. The likely position of the body was reconstructed by modeling the explosion as an omnidirectional emission of particles from a model of the explosion site and noting the distribution of particles on a model of a human. The applications and limitations of this method in reconstructing the events and correlation with the injuries noted at autopsy are discussed.  相似文献   
120.
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