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   301篇
  免费   18篇
  2024年   1篇
  2023年   1篇
  2020年   2篇
  2019年   10篇
  2018年   10篇
  2017年   11篇
  2016年   18篇
  2015年   7篇
  2014年   6篇
  2013年   47篇
  2012年   11篇
  2011年   12篇
  2010年   8篇
  2009年   6篇
  2008年   8篇
  2007年   4篇
  2006年   11篇
  2005年   10篇
  2004年   11篇
  2003年   4篇
  2002年   9篇
  2001年   3篇
  2000年   9篇
  1999年   9篇
  1998年   7篇
  1997年   7篇
  1996年   9篇
  1995年   7篇
  1994年   8篇
  1993年   10篇
  1992年   3篇
  1991年   2篇
  1990年   2篇
  1989年   3篇
  1988年   4篇
  1987年   3篇
  1986年   3篇
  1985年   1篇
  1984年   4篇
  1983年   2篇
  1982年   5篇
  1981年   3篇
  1980年   1篇
  1979年   1篇
  1978年   3篇
  1976年   1篇
  1975年   1篇
  1973年   1篇
排序方式: 共有319条查询结果,搜索用时 265 毫秒
31.
This paper examines changes in the location of ore-based steel-makingcapacity in the U.S. over the period 1974 to 1991 using data on each of the 45 ore-based mills that were in operation in 1974. We find that the geographic ddistributions of demand and of competition from minimills and imports were important in determining where capacity reductions occurred and which plants were closed. Technology in use at the plant also affected capacity adjustment. However, we find that regional variation in prices of raw materials were notimportant factors in determining where steel-making capacity was reduced.  相似文献   
32.
33.
Passage of the Ryan White Comprehensive AIDS Resources Emergency (CARE) Act of 1990 followed a form familiar to students of policymaking in the American intergovernmental system: the provision of significant federal financing for policy initiatives located primarily at the state and local levels. The successes and failures of the Act, including its 1996 reauthorization, suggest both the strengths and the limitations of that design. This paper examines the structure of the Act as a vehicle for the federal government to fund AIDS service delivery at the state and local levels and the intergovernmental consequences of allocation policies associated with the Act. It concludes that perennial problems of equity and access cannot be resolved by the delegation of responsibility for significant policy or funding decisions to localities; rather, questions about the role of the federal government in overcoming intralocal and interlocal disparities remain to be addressed.  相似文献   
34.
Susan Huang's Picturing the True Form: Daoist Visual Culture in Traditional China is an important addition to the current bibliography of Daoist studies. The book is a scholarly investigation into the formulation of the rich visual vocabulary and diverse formats used to express the complex and manifold corpus of Daoist beliefs and practices. Prominent among these is the challenge of finding the means to pictorially convey the ever-changing true form, or zhenxing,  相似文献   
35.
36.
37.
38.
Work hard, play hard: selling Kelowna, BC, as year-round playground   总被引:1,自引:1,他引:0  
A keen interest in place making and place selling is widespread in contemporary society. While the bulk of academic research has focused on studying the restructuring of large urban conglomerates, places beyond the exploding metropolis, by comparison, have received little attention, especially when it concerns Canadian landscapes. In an attempt to study the particularities of place making in contemporary smaller, more isolated communities—hinterlands—this work analyses the city of Kelowna, in British Columbia, Canada. We argue that historically Kelowna, a small rural community specialising in ranching, forestry and fruit production, since the early 1980s, has been re-imagined and re-designed, on the one hand as an all-year playground and as an innovative frontier for high-tech industries; on the other hand, this post-Fordist reinvention contains a discourse of 'whiteness', one that entices by packaging 'place' in terms of 'sameness' and 'familiarity'. In contrast to large cosmopolitan post-industrial cities, hinterland-type cities are invented, sought and lived as geographies cleared from the 'elements' that make cities 'unsafe'.  相似文献   
39.
ABSTRACT The productivity effects of agglomeration economies are often treated as endogenous in empirical work due to the potential for reverse causality. The extent to which these relationships are actually simultaneously determined, however, remains largely unobserved. This paper estimates panel data vector autoregressions for different sectors of the economy to test for bidirectional causality between productivity and both localization and urbanization economies. The aim is to address some key questions that will help to identify the extent of the endogeneity problem. Can we actually observe bidirectionality in the data? Does it feature more for some industries than for others? Is it more prevalent for localization or urbanization economies? The results show that agglomeration economies are not strictly unidirectional and that higher levels of productivity can induce growth in the scale of local urban and industrial environments. The paper discusses the difficulties that these issues pose for the estimation of agglomeration economies.  相似文献   
40.
This article outlines the significant role of ideologies and values that lie beneath the physicality of the city, in reforming urban spatial morphology within a framework of social sustainability. We focus on the urban morphology of Middle Eastern cities, which have evolved within the framework of Islamic tradition, to illuminate the relationship between the ideological and physical dimensions of spatial morphology in all urban contexts. We examine the process by which a collective of religious, political, and cultural values underlying the physicality of the city have evolved into aesthetic conventions. This process played a crucial role in the maintenance of social and urban sustainability. We propose a form of “pattern language,” here termed the anatomical approach, that brings together the ideological dimension of a city's inhabitants and the physical characteristics of urban morphology. Such a model may help urban designers and architects to understand and create more responsive and friendly cities. It furthermore contributes to the planning education process by providing the essential knowledge and analytical foundation for site analysis and conservation of valuable contexts.  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