THE AMBIGUITIES AND LIMITS OF FISCAL STRAIN INDICATORS

Several attempts have been made to develop indicators of the fiscal strain conditions of cities. These indicators are meant to represent the existence of conditions which will strain tax bases and produce outmigration from cities with high strain. The indicators which have been developed, however, are not valid representations of what they claim to be. This essay presents the reasons for this assessment, and suggests an alternative approach to assessing fiscal strain.     

SHADOWS OF PLANNING: ON LANDSCAPE/PLANNING HISTORY AND INHERITED LANDSCAPE AMBIGUITIES AT THE URBAN FRINGE

The history of vernacular landscapes at the urban fringe is poorly studied, limiting our understanding of the contemporary character of the fringe and our knowledge of the urbanization process. This article argues the necessity of a combined analysis of the legacies of planning and the footprints of former landscape ideals in order to understand the conditions for spatial planning at the urban fringe. After first introducing the methodological use of landscape/planning history, the article focuses on the Swedish discourse on landscape change and landscape planning concerning the urban fringe in the 1930s. Particular focus is placed on the discourse on agricultural landscapes at the urban fringe. The third section of the article presents an examination of the footprints of the ‘landscape convention’ (i.e. an agreement on the meaning of landscape in relation to law and justice) resulting from the landscape discourse of the 1930s. The article argues that the legacy of the 1930s explains some of the difficulties arising when planners of today aim to utilize the farm landscape as a resource for recreation at the urban fringe. The shadow of the landscape discourse of the 1930s also creates difficulties in dealing with peri‐urban landscapes in Swedish planning and Swedish law. With the ongoing discourse on how to implement the European Landscape Convention, such knowledge is particularly useful.     

THE BEGINNINGS OF ISLAMIC STONEPASTE TECHNOLOGY*

A multidisciplinary programme of research on Islamic pottery has been focused on questions of the dating, provenance and technology of Islamic pottery. One particular question has been the development of stonepaste, a material made primarily of crushed quartz with added frit-glass and clay. The combination of the different approaches of this study has revealed early foundations for the technology in ninth-century AD Iraq, apparently originating in the clay ceramic rather than the ‘Egyptian faience’ tradition. Subsequent and final practice developed in tenth- and eleventh-century AD Egypt. This technology becomes the primary body for all fine Islamic ceramics.     

全球技术空间体系及我国的对策初探

全球技术空间体系是指技术存量在技术势差激励下,在全球范围内各区域间交流运动所形成的复杂空间网络。它突出地表现为技术存量在不同区域、不同等级的技术供给者、消费者以及联结它们的技术流通渠道中的交流运动。技术势差、技术廊道是全球技术空间体系形成的必要条件,而知识产权保护是保证技术流动长盛不衰的制度保障。本文仅从体系形成的基本条件、现实障碍、特征及区域效应等方面简要分析了全球技术空间体系的形成机制,进而探讨了中国面对全球技术空间体系的政策选择。     

PRODUCTION TECHNOLOGY UNCERTAINTY AND THE OPTIMAL LOCATION OF THE FIRM*

ABSTRACT This paper investigates the implication of production-technology uncertainty for the exclusion theorem. The paper presents the result that the risk-averse firm facing production technology uncertainty prefers an intermediate location to avoid risk under certain conditions. The firm chooses an intermediate location (over a corner location) particularly if its degree of risk aversion overwhelms the inherent convexity of profit with respect to location. The latter depends, in turn, on the structure of production technology characterized by the elasticity of substitution and returns to scale parameters.     

信息技术影响下的空间观及其研究进展

本文主要评述信息技术影响下时空观、空间构成、空间形成和信息技术对空间的影响等方面的研究进展。文章认为传统的空间概念在信息技术影响下发生了改变,空间观由实在论走向关系论,空间尺度无限缩小,空间向着多维度发展。在信息技术影响下,传统空间观从内涵到外延都发生了深切的变化,空间观的研究正由理论研究向运用与实证研究转化,未来应重点构筑我国信息技术影响下的空间理论体系。     

COLLEGE-TO-WORK MIGRATION OF TECHNOLOGY GRADUATES AND HOLDERS OF DOCTORATES WITHIN THE UNITED STATES

ABSTRACT.  This study estimates a series of random parameter logit models of the college-to-work migration decisions of technology graduates and holders of doctorates within the United States. We employ detailed information on the migration-relevant characteristics of individuals, as well as on their actual origins and destinations at the metropolitan scale. In addition to its obvious implications for "brain drain" policies in U.S. metropolitan areas, the study demonstrates the richness of the random parameters technique for behavioral-geographic analysis. We find that science and technology graduates migrate to better educated places, other things equal; that PhD graduates pay greater attention to amenity characteristics than other degree holders; and that foreign students from some immigrant groups migrate to places where those groups are concentrated.     

THE EFFECTS OF REGIONAL SCIENCE AND TECHNOLOGY POLICY ON THE GEOGRAPHIC DISTRIBUTION OF INDUSTRIAL R&D LABORATORIES*

ABSTRACT. The determinants of the geographic distribution of industry R&D activity are examined with particular emphasis on the role of university research as well as state science and technology programs. An analysis of a cross section of metropolitan areas indicates that industry R&D labs are located in areas with state science and technology programs, as well as in areas with higher levels of university research, larger quantities of non-welfare related local government spending, a better educated workforce, and a greater population density.     

技术、产业和地方:互联网的经济地理学

从技术与经济的角度入手,在已有的文献资料基础上,对互联网的经济地理学研究进展进行了总结和评述。互联网技术条件下,新空间的产生孕育了新地理学的浮现。文章从互联网的技术基础设施、数码空间区隔、互联网内容产业和电子商务等四个方面总结了互联网经济地理学的研究动态及主要观点。最后还重新审视了网络空间和地理空间之间的相互辨证关系,并提供了进一步研究的方向。     

THE TECHNOLOGY OF GLAZED ISLAMIC CERAMICS USING DATA COLLECTED BY THE LATE ALEXANDER KACZMARCZYK

During the 1980s, the late Alexander Kaczmarczyk undertook the analysis of some 1200 glazed Islamic ceramics from Egypt, Iran, Iraq and Syria spanning the period from the eighth to the 14th centuries ad , using a combination of XRF for the glazes, and AAS or PIXE for the bodies. The aim of the present paper is, first, to bring to the attention of researchers into Islamic ceramics the fact that these analytical data are available on the Research Laboratory for Archaeology and the History of Art website, and also that some 400 of the analysed sherds are held in the Research Laboratory. Second, the paper provides a preliminary interpretation of the analytical data in terms of the choice of glaze type (i.e., alkali–lime, lead–alkali and high‐lead), tin‐opacification, body type (i.e., quartz or stonepaste, calcareous clay, and non‐calcareous clay), and colorants.     

西方国家大学技术转移研究的进展和启示

技术、制度、文化和关系、尺度、调节是经济地理学理论构建的重要中介,也是当今"新经济地理学"理论建构争论的核心所在。大学作为技术创新的集中地,也是国家创新体系的组成部分之一,其在整个国家和地区的技术创新和转移中具有举足轻重的地位。大学技术转移的研究是近年来国外管理学、经济学和经济地理学研究的热点问题。文章通过总结国外大学技术转移研究的现状和发展趋势,结合国内的研究特点,给出了未来我国学者,特别是经济地理学者在大学技术转移的研究方面应该注意的问题,以便使得大学技术转移能在我国建设自主创新型国家的过程中发挥应有的作用。     

RELATIONSHIP BETWEEN THE COLORATION AND THE FIRING TECHNOLOGY USED TO PRODUCE SUSA GLAZED CERAMICS OF THE END OF THE NEOLITHIC PERIOD*

Ancient decorated potteries from Susa (Mesopotamia) dating from 4200 to 3700 bc , were studied in order to determine the origin and the nature of the raw materials used, and to identify the technological processes applied to make the ceramic bodies and their decorations. Bulk compositions were determined by particle induced X‐ray emission (PIXE), while the microstructure and the mineralogical phases were studied using scanning electron microscopy (SEM), energy dispersive X‐ray analyses (EDX) and X‐ray powder diffraction (XRD). The results showed that the raw materials used to elaborate these potteries were similar for all the ceramic bodies (carbonates and iron and magnesium‐rich clays containing sand), and for all the decorations (iron oxides, silica, potassic and alumina sources). The variations of coloration of the ceramics and of their decorations were due to different firing temperatures. The ranges of firing temperatures used by potters were evaluated on the basis of mineral stability domains.     

基于新地理信息技术的南京市游客流动性空间特征研究

利用新地理信息技术,采集500个游客GPS地理标记照片,运用GIS空间分析方法,分析游客在南京城市内部及其与长三角其它城市空间流动特性,并提炼游客空间行为一般模式。发现:①南京城市内部旅游流在主城区集聚,整体上呈现中心城区向四周扩散的趋势;且在空间形态上形成小型化、斑块化的布局特征。②南京与长三角周边城市的线形路线以点-点模式为主导,地域模式以便利的同城市中心流动为多数,其旅游流流动模式与已有典型模式基本吻合,同时长三角地区旅游流呈现等级扩散特征。     

POTTERY TECHNOLOGY AT THE CHALCOLITHIC SITE OF TELEILAT GHASSUL (JORDAN)

Sherds from the Chalcolithic levels at Teleilat Ghassul show evidence of a considerable degree of sophistication in pottery technology and design. The bodies are almost certainly made from a siliceous illitic clay which contained some calcium carbonate, and was obtained locally. Some unusual, yet common, sherds are composed of highly vitrified black bodies with a surface wash of a refractory white clay. These sherds indicate the production of one of the earliest known totally vitrified ceramic fabrics. The latter sherds have been examined in some detail by chemical, thermal and X-ray analysis, and optical and scanning electron microscopy.