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   8075篇
  免费   330篇
  2023年   31篇
  2020年   89篇
  2019年   134篇
  2018年   453篇
  2017年   413篇
  2016年   452篇
  2015年   190篇
  2014年   170篇
  2013年   2101篇
  2012年   186篇
  2011年   358篇
  2010年   330篇
  2009年   217篇
  2008年   212篇
  2007年   286篇
  2006年   135篇
  2005年   116篇
  2004年   94篇
  2003年   87篇
  2002年   95篇
  2001年   90篇
  2000年   100篇
  1999年   78篇
  1998年   76篇
  1997年   97篇
  1996年   50篇
  1995年   67篇
  1994年   49篇
  1993年   64篇
  1992年   53篇
  1991年   55篇
  1990年   53篇
  1989年   51篇
  1988年   47篇
  1987年   65篇
  1986年   48篇
  1985年   80篇
  1984年   84篇
  1983年   78篇
  1982年   76篇
  1981年   67篇
  1980年   72篇
  1979年   75篇
  1978年   75篇
  1977年   80篇
  1976年   78篇
  1975年   59篇
  1974年   42篇
  1973年   46篇
  1972年   35篇
排序方式: 共有8405条查询结果,搜索用时 15 毫秒
71.
During the 7970s the structure of local government in Scotland was transformed from a traditional system based on counties and burghs to a nested spatial hierarchy of regions and districts. This reform represents the last stage of an evolutionary process, uniting the formerly separate rural and urban hierarchies of local government and administration. The city region was taken to be the guiding principle for reform, and the new regions were identified mainly on the basis of town hinterlands. Throughout all reforms there has been a tendency to concentrate local government functions at higher levels of authority.
Pendant les années 1970 la structure du gouvernement urbain et rural en Ecosse fut transformeé d'un système traditionnel de comptés et bourgs en une hiérarchie spatiale de régions et de districts. Une réforme récente qui unifie pour la première fois les échelons ruraux et urbains des administrations et des gouvernements locaux, représente la phase ultime d'une évolution vers cette hiérarchie. Cette réforme a été guidée par l'utilisation de la zone d'influence urbaine comme unité de base, et les nouvelles régions ont été identifiées surtout sur la base des aires tributaires des villes. Au cours des réformes il y avait une tendance è concentrer les fonctions du gouvernement local è des niveaux supérieurs d'autorité.  相似文献   
72.
73.
74.
75.
Book reviews     
Derek McDougall, Harold D. Lasswell and the Study of International Relations. University Press of America, Lanham, USA, 1984, pp.370. $16.50.

John W. Burton, Global Conflict: The Domestic Sources of International Crisis. Wheatsheaf Books, UK, 1984, pp.194. $54.00.

K.J. Holsti, The Dividing Discipline: Hegemony and Diversity in International Theory. Allen and Unwin, Boston and Sydney, 1985. pp.165. $39.95.

Hedley Bull (ed.), Intervention in World Politics. Clarendon Press, Oxford, 1984, pp. viii + 198. $31.00.

Hedley Bull, Justice in International Relations. 1983–84 Hagey Lectures, University of Waterloo, 1984, pp. iii + 36. No price given. (Available from University Publications Distribution Service, Dana Porter Arts Library, University of Waterloo, Waterloo, Ontario N2L3G1, Canada.)

Benedict Anderson, Imagined Communities: Reflections on the Origin and Spread of Nationalism. Verso Editions and NLB, London, 1983, pp. 160. £15.00.

Chalmers Johnson, Revolutionary Change. Second edition. Longman, London, 1983, pp.xii + 217. $13.85.

Peter Calvert, Politics, Power and Revolution. An Introduction to Comparative Politics. Wheatsheaf Books, Brighton, 1983, pp.208. £5.95.

John Walton, Reluctant Rebels. Comparative Studies of Revolution and Underdevelopment. Columbia University Press, New York, 1984, pp.xii + 230 $US36.00 (cloth), $US10.00 (paper).

E. A. Tiryakian and R. Rogowski (eds), New Nationalisms of the Developed West. Toward Explanation. Allen and Unwin, Boston, 1985, pp.xii + 394. $69.00.

Peter H. Merkl and Ninian Smart (eds), Religion and Politics in the Modern World. New York University Press, New York, 1985, pp.276. No price given.

Richard Lowenthal, Social Change and Cultural Crisis. Columbia University Press, New York, 1984, pp.viii + 252. $US29.50.

Dietrich Fischer, Preventing War in the Nuclear Age. Rowman and Allanheld, Totowa, N.J./Croom Helm, London, 1984, pp. x + 236. $27.95.

F. Dyson, Weapons and Hope Harper and Row, New York, 1984, pp.340. $24.95.

John Langmore and David Peetz (eds), Wealth, Poverty and Survival. Australia in the World. George Allen and Unwin, Sydney, in association with the Australian Labor Party, 1983, pp. 225.  相似文献   

76.
77.
78.
ABSTRACT This paper develops a general multimarket hedonic model appropriate for a national, interregional study of wages, housing prices, and location-specific amenities. The model encompasses the effects of interregional location, intraurban location, and city size. Typically, hedonic studies focus on a single market such as labor or housing and ignore interactions implicit in a more global compensation mechanism. Examination of the comparative statics of our model indicates that single-market differentials are partial prices and are unreliable measures of amenity values in an interregional context. Unbiased amenity values are estimated for a comprehensive set of amenities using data on housing prices for 34,414 households and wages for 46,004 workers from the 1980 Census of Population and Housing. Statistically significant differences in housing prices and wages are found due to amenities.  相似文献   
79.
ABSTRACT We develop a generalized Harrod-Domar type of model for optimal regional growth which allows determination of the optimal allocation of regional public investments and which considers multiple growth objectives, as well as both normal and singular fiscal instruments. This general model is shown to include most of the previous optimal regional growth models as special cases. Necessary conditions for some special cases of the general model are analyzed in detail, and decision rules associated with derived optimal regional growth policies are articulated. These special cases verify that singular controls do exist in certain instances, and that they must be considered for the complete specification of optimal regional growth policies; this is significant because singular controls have not been previously analyzed in the literature. We conclude the paper with a discussion of sufficiency conditions for optimal regional growth models which is more general than that given by previous authors.  相似文献   
80.
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