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   872篇
  免费   56篇
  2023年   10篇
  2022年   6篇
  2021年   8篇
  2020年   16篇
  2019年   37篇
  2018年   45篇
  2017年   59篇
  2016年   48篇
  2015年   45篇
  2014年   38篇
  2013年   168篇
  2012年   35篇
  2011年   41篇
  2010年   22篇
  2009年   27篇
  2008年   21篇
  2007年   9篇
  2006年   11篇
  2005年   10篇
  2004年   13篇
  2003年   11篇
  2002年   13篇
  2001年   10篇
  2000年   14篇
  1999年   12篇
  1998年   5篇
  1997年   9篇
  1996年   8篇
  1995年   13篇
  1993年   9篇
  1992年   6篇
  1990年   5篇
  1988年   5篇
  1987年   4篇
  1986年   4篇
  1983年   4篇
  1982年   4篇
  1980年   6篇
  1977年   13篇
  1976年   8篇
  1975年   6篇
  1972年   6篇
  1971年   4篇
  1969年   5篇
  1967年   4篇
  1966年   5篇
  1964年   5篇
  1960年   6篇
  1959年   5篇
  1950年   4篇
排序方式: 共有928条查询结果,搜索用时 234 毫秒
911.
912.
913.
914.
ABSTRACT

Currently little is known about how institutional arrangements co-evolve with urban experimentation. This paper mobilizes neo-institutional literature and recent urban experimentation literature as a framework to explore how and why institutional arrangements differ across urban contexts. Empirically the paper focusses on smart city initiatives in Amsterdam, Hamburg and Ningbo. These three cities are frontrunners in adopting a comprehensive smart city agenda, but they do so in different ways. The paper examines regulative, normative and cognitive elements of institutional arrangements, explores how they shape experimentation, and reflects on their place-based specificities. The comparative analysis suggests that the focus of, and approach to, experimentation can be understood as resting in a (possibly unique) combination of strategic agency and dynamics at multiple spatial scales.  相似文献   
915.
We present results of osteological and isotopic analyses of human remains from Cova de la Pastora (Alcoi, Alicante, Spain) and discuss the implications in light of a new sequence of radiocarbon dates indicating that the cave was used as a burial site in the Late Neolithic (ca. 3800–3000 cal BC), Chalcolithic (ca. 3000–2500 cal BC), Bell Beaker Transition (Horizonte Campaniforme Transicional - HCT; ca. 2500–2200 cal BC) and the Bronze Age (ca. 2200–1500 cal BC). Similarities in stable isotopic values of C and N indicate little variation in subsistence between men and women, and a similar nutritional base from the Late Neolithic to the Bronze Age. This pattern of stability is augmented by evidence of trauma and disease found on numerous skulls in the collection. Since no clear associations of specific grave goods with certain individuals based on sex or age could be determined, the only suggestion of social inequality lies in the burial practice itself, where certain individuals were interred in caves while others were not.  相似文献   
916.
This article analyses pieces of literature included in Fan Ye’s chapters on Zhang Heng, Ma Rong, and Cai Yong. It interprets these pieces within the context of its authors’ biographies, coming to the conclusion that they represent different approaches to the Confucian theme of how to serve and survive in times when there is no good ruler. While Zhang Heng was able to make a career under such circumstances, Ma Rong survived but ran into great difficulties and Cai Yong was ultimately executed.  相似文献   
917.
Book reviews     
THE UNITED STATES IN WORLD HISTORY. By John B. Rae and Thomas H. D. Mahoney. xv+831 pages. (McGraw Hill Book Co., Inc., New‐York, 1949).

INTERNATIONAL RELATIONSHIPS IN THE AGE OF CONFLICT BETWEEN DEMOCRACY AND DICTAORSHP. By R. Strausz‐Hupé and Stefan T. Possony. xiv+947 pages. (McGraw‐Hill Book Co., Inc., New York, 1950.)

ISLAMIC SOCIETY AND THE WEST, by H. A. R. Gibb and Harold Bowen. Vol. I. Islamic Society in the Eighteenth Century, Part I. Oxford University Press. Published under the auspices of the Royal Institute of International Affairs, pp. xi—313—53 (Appendices)—20 (Indices).

AMERICAN‐RUSSIAN RELATIONS IN THE FAR EAST. By Pauline Tompkins. (Macmillan, New York, 1949. pp. XIV, 426. Maps and bibliography. $5.00).

THE LEFT WING IN SOUTHEAST ASIA. By Virginia Thompson & Richard Adloff (I.P.R.) (William Sloane Associates, New York. $4.00. pp. 298, map, illustrations).

MANCHURIA SINCE 1931. By F. C. Jones. (Oxford University Press, 1949).  相似文献   

918.
In many countries, including South Africa, data on employment is rarely available on a downscaled level, such as building level, and is only available on less detailed levels, such as municipal level. The aim of this research was to develop a methodology to disaggregate the employment data that is available at an aggregate level to a disaggregate, detailed building level. To achieve this, the methodology consisted of two parts. First, a method was established that could be used to prepare a base data set to be used for disaggregating the employment data. Second, a multiobjective optimization approach was used to allocate the number of employment opportunities within a municipality to building level. The algorithm was developed using an Evolutionary Algorithm framework and applied to a case study in a metropolitan municipality in South Africa. The results showed favorable use of multiobjective optimization to disaggregate employment data to building level. By enhancing the detail of employment data, planners, policy makers, modelers and other users of such data can benefit from understanding employment patterns at a much more detailed level and making improved decisions based on disaggregated data and models.  相似文献   
919.
Book reviews     
THE ADAPTABLE COMMONWEALTH. F. H. Soward, 1950 (London, O.U.P., pp. 62). 2/‐.

EUROPE IN DECAY: A STUDY IN DISINTEGRATION 1936–1940. By L. B. Namier. 1950. (London. MacMillan, viii+330. 16s.).

EDUCATION AND SOCIETY IN MODERN GERMANY. R. H. Samuel and R. H. Thomas. Routledge and Kegan Paul (Int. Lib. of Soc. & Soc. Recon.). London 1949.

THE IDEA OF CONFLICT. By Kurt Singer. (Melbourne University Press. pp. 181).  相似文献   

920.
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