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61.
ABSTRACT This paper examines the continued strong population growth in U.S. nonmetropolitan areas possessing high levels of natural amenities during the 1990s and the reasons for near convergence of growth across the top tiers of the amenity hierarchy. Based on estimated parsimonious spatial hedonic growth regressions, strong demand for high‐amenity areas continued in the 1990s, but the converging of population growth across the top tiers appeared related to capitalization of amenity differences among the tiers into factor prices. Yet, evidence obtained from controlling for spatial effects suggests that the relative quality of life in the top two tiers had deteriorated.  相似文献   
62.
We drove from Beijing to Tianjin,guided by GPS.We got lost several times in the crowded city and had to continually send messages to Mr.Liu Dong to get directions by mobile phone.Finally in the thick of the city buildings,we found a Tibetan-style flat-roofed building that was colored red and white  相似文献   
63.
<正>Even in my very early days in Tibetan Buddhist art circles,art auctions and even academic circles, I had not only heard the name Yesi but I also read his ill...  相似文献   
64.
选择华商与韩商大会作为个案,运用比较研究的方法,对华商网络与韩商网络的运营机制及其特征进行了阐述和分析。韩商大会与华商大会是两个最具规模的离线网络协力系统,在强化网络成员之间的联系与沟通乃至在构筑民族共同体方面具有十分重要的意义。两个大会在会议周期、运营体系和世界性影响力方面又具有很大差异。  相似文献   
65.
Many of the sediments analysed from Tel Dor (Israel) show structural alterations indicating that they were exposed to high temperatures. This observation is consistent with the abundant evidence for use of pyrotechnology from the earliest exposed Middle Bronze Age strata through the Roman period. Such structurally altered sediments may well represent one of the more widespread and durable records of pyrotechnology, and as such could be invaluable for reconstructing past human activities. The specific aims of this research are therefore to develop the means for identifying local sediments that were altered by different pyrotechnological activities and to elucidate the varying circumstances whereby sediments were exposed to high temperatures in a Late Bronze and Iron Age 1 section.  相似文献   
66.
Dan Cohen  Emily Rosenman 《对极》2020,52(5):1259-1285
In the face of planetary crises, from inequality to biodiversity loss, “impact investing” has emerged as a vision for a new, “moral” financial system where investor dollars fund socio-environmental repair while simultaneously generating financial returns. In support of this system elite actors have formed a consensus that financial investments can have beneficial, more-than-financial outcomes aimed at solving social and environmental crises. Yet critical geographers have largely studied “green” and “social” finance separately. We propose, instead, a holistic geography of impact investing that highlights the common methods used in attempts to offset destructive investments with purportedly reparative ones. This involves interrogating how elite-led ideas of social and environmental progress are reflected in investments, as well as deconstructing the “objects” of impact investments. As examples, we use insights from both “green” and “social” literatures to analyse the social values embedded in projects of financialisation in schooling and affordable housing in the US.  相似文献   
67.
出土、出水饱水木质文物冷冻干燥研究进展   总被引:1,自引:0,他引:1  
冷冻干燥是稳定出土、出水饱水木质文物的主要方法之一。该方法基于水由固态直接成为气态的升华过程不产生表面张力的原理,可避免饱水木材脱水时受到干燥应力的破坏。数十年来,经过实验实践和不断完善,冷冻干燥在出土、出水降解木材的稳定中取得了很好的效果,在大型、厚重木质文物的保护方面得到成功应用。本研究基于在出土、出水含盐饱水木质文物保护方面的多年实践,对国内外在脱盐、抗菌、热浸、预冻和升华干燥工艺等方面的进展进行了回顾,并提出了解决一些现有问题的技术设想。  相似文献   
68.
China's South–North Water Transfer Project (SNWTP) is a vast and still expanding network of infrastructure and institutions that moves water from the Yangtze River and its tributaries to cities in North China. This article aims to assess the SNWTP's impacts by beginning to answer seven questions about the project: How is the management of the SNWTP evolving? What are the problems to be resolved when managing SNWTP water within jurisdictions? What are the status and management of water quality in the SNWTP? What are the consequences of resettlements caused by the SNWTP? How is increased water supply affecting regional development? Is the SNWTP achieving its stated environmental goals? What are the sustainability credentials of the SNWTP? Drawing on primary and secondary data, the article demonstrates both that the opportunities and burdens characterising the project are highly uneven and that management systems are evolving rapidly in an attempt to enforce strict water quality targets. Furthermore, while the SNWTP may be helping to resolve groundwater overexploitation in Beijing, it is highly energy intensive, raising questions about its sustainability. Our analysis highlights the need to continue to interrogate the socio‐economic, environmental, and political implications of such schemes long after they are officially completed.  相似文献   
69.
THE EXCAVATION of a practically complete medieval tile factory, in operation between c. 1275/85 and 1325/35, is described. The establishment comprised three buildings, interpreted as workmen's accommodation (A), a workshop (B), and a drying shed (C), together with two kilns, within a ditched roadside enclosure. The kilns were of the normal type, with two parallel flues; one had a walled stokepit reached by a tile staircase. The methods of tile manufacture and firing are discussed, the conclusions being partially supported by experimental evidence. The patterns of the decorated tiles are seen as derivatives of the Chertsey-Westminster School, mostly via the 13th-century ‘Central Essex Group’; a relationship with Penn is also suggested. Distribution of Danbury products is largely confined to the Chelmer valley, but a waterborne distribution is suggested by a group of floor tiles from Virginia Water, Surrey.  相似文献   
70.
Vansina, Jan. Paths in the Rainforests: Toward a History of Political Tradition in Equatorial Africa. Madison: University of Wisconsin Press, 1990. xx + 428 pp. including appendix, notes/references, and index. $45.00 cloth, $17.50 paper.

Dillon, Richard D. Ranking and Resistance: A Precolonial Cameroonian Polity in Regional Perspective. Stanford: Stanford University Press, 1990. xiii + 310 pp. including appendix, references, and index. $39.50 cloth.

Ferguson, James. The Anti‐politics Machine: “Development,” Depoliticization and Bureaucratic Power in Lesotho. Cambridge: Cambridge University Press, 1990. xvi + 320 pp. including notes, references, and index. $49.50 cloth.  相似文献   
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