论工业变化的综合研究：以澳大利亚制造业为例

80年代以来,国际工业地理学界采取不同的方法途径对工业变化进行研究。本文在分析这些方法的基础上,提出将工业组织变化与工业区域变化、工业结构变化加以结合,以弥补在工业区域和结构变化研究中忽视组织决策因素,在工业组织变化研究中忽视把区域作为一个整体。基于大量统计数据和本人实地调查资料,本文应用这种综合方法研究了70年代以来澳大利亚的工业变化。     

Blending Aggregation and Selection: Adapting Parallel Coordinates for the Visualization of Large Datasets

Abstract

Many of the traditional data visualization techniques, which proved to be supportive for exploratory analysis of datasets of moderate sizes, fail to fulfil their function when applied to large datasets. There are two approaches to coping with large amounts of data: data selection, when only a portion of data is displayed, and data aggregation, i.e. grouping data items and considering the groups instead of the original data. None of these approaches alone suits the needs of exploratory data analysis, which requires consideration of data on all levels: overall (considering a dataset as a whole), intermediate (viewing and comparing collective characteristics of arbitrary data subsets, or classes), and elementary (accessing individual data items). Therefore, it is necessary to combine these approaches, i.e. build a tool showing the whole set and arbitrarily defined subsets (object classes) in an aggregated way and superimposing this with a representation of arbitrarily selected individual data items.

We have achieved such a combination of approaches by modifying the technique of parallel coordinate plot. These modifications are described and analysed in the paper.     

Combining geophysical methods to estimate the spatial distribution of soils affected by water saturation

Geophysical methods have already shown their interest for the continuous characterisation of soils over landscapes, rapidly and, non-intrusively. But in bottomland areas, difficulties are encountered in relating geophysical properties to soil spatial distribution due to large variations in the depth, texture and/or water content of soils. Indeed, respective variations of these parameters can result in ambiguous geophysical responses. For example, a decrease in soil water content, which causes an increase in electrical resistivity, may be offset by an increase in soil clay content, inducing a decrease in resistivity. The objective of this study was to improve the continuous characterisation of soils affected by an excess of water by using a combination of geophysical techniques. Three techniques, the radio-magnetotelluric (RMT), the ground penetrating radar (GPR) and the electrostatic quadrupole (ESQP) were implemented along eight representative transects where soils were extensively described. The soil cover shows a succession from downslope to upslope consisting in fibric Fluvisols, gleyic Fluvisols, and Albefluvisols. None of the geophysical methods allows us to distinguish all soil limits and to estimate the geometry of soil horizons. The ESQP discriminates Fluvisols from Albefluvisols, whereas the RMT above all reveals differences in soil material thickness, which do not permit to discriminate between these soils. In complement, the GPR allows the estimation of the geometry of organic horizons and anthropic structures, such as ditches. Finally, the combination of these three techniques allows us to assess the main features of soil spatial distribution in bottomlands. To cite this article: V. Chaplot et al., C. R. Geoscience 336 (2004).     

REFLECTIONS ON INDIGENOUS WOMEN'S ORGANISATIONS IN SUB-SAHARAN AFRICA: A COMPARATIVE STUDY IN BRONG AHAFO REGION, GHANA

This paper explores the activities and problems of indigenous women's organisations in Ghana. The survey data that form the basis of the analysis were collected in 1998 from a sample of 66 women's organisations in the districts of Atebubu and Techiman of Brong Ahafo Region in Ghana. The results suggest that despite the debilitating impacts of patriarchy, poverty and illiteracy, the women in both districts have managed to use their grassroots organisations to improve the socioeconomic circumstances of their members in particular and their communities in general. Given the dearth of theoretical and empirical analyses on grassroots mobilisation of women in sub‐Saharan Africa, the results presented here are intended to stimulate further research and discussion on the subject.     

Accounting for carbon dioxide emissions from international shipping: Burden sharing under different UNFCCC allocation options and regime scenarios

CO₂ emissions from international shipping, which are currently unregulated, are predicted to rise dramatically if no regulations are implemented. International bunker fuel emissions have been excluded from the Kyoto Protocol; the UNFCCC conference in Copenhagen also failed to bring about clear directions on how to proceed with these emissions.     

Party organisation and democracy – A comparison of Les Verts and the British Green Party

The environment is the issue most closely identified with the Green movement. However, a commitment to the rejuvenation of political practices has been equally important in the development of their partisan organisations. Green party members share the conviction that democracy is the best way to attain a sustainable society. They aspire to a more participatory politics and have translated their ideals of equality and individual fulfilment into alternative party structures. Many of their practices demonstrate that they share values and attitudes which inspire their behaviours and intra-party regulations. However, Green parties are also influenced by the national structure of political opportunities. The practical arrangements French and British Greens have developed reflect their relative integration within the political system as well as the influence of national political culture on conceptions of equality and participation. This revised version was published online in August 2006 with corrections to the Cover Date.     

Social participation and social capital with equity and efficiency: An approach from central-place theory

A great deal of attention has been paid to the efficiency of the analysis of sustainable urban and regional growth. This includes social participation and social capital, which require a consideration of equity. In this paper, an approach from central-place theory for sustainable urban and regional growth is examined, taking into consideration relevant variables such as ageing, social interaction and accessibility. A lack of consideration of equity could cause several social exclusion problems, and these problems could develop into spatial consumer exclusion. Solutions for these problems would not only improve equity but also efficiency, and the outcome would addresses the necessity of an alternative spatial formation based on a wider-regional rural central-place system according to given economic, social and spatial configurations.     

Comparison of statistical algorithms for detecting homogeneous river reaches along a longitudinal continuum

Seven methods designed to delineate homogeneous river segments, belonging to four families, namely — tests of homogeneity, contrast enhancing, spatially constrained classification, and hidden Markov models — are compared, firstly on their principles, then on a case study, and on theoretical templates. These templates contain patterns found in the case study but not considered in the standard assumptions of statistical methods, such as gradients and curvilinear structures. The influence of data resolution, noise and weak satisfaction of the assumptions underlying the methods is investigated. The control of the number of reaches obtained in order to achieve meaningful comparisons is discussed. No method is found that outperforms all the others on all trials. However, the methods with sequential algorithms (keeping at order n + 1 all breakpoints found at order n) fail more often than those running complete optimisation at any order. The Hubert-Kehagias method and Hidden Markov Models are the most successful at identifying subpatterns encapsulated within the templates. Ergodic Hidden Markov Models are, moreover, liable to exhibit transition areas.     

Convergence or divergence?: Status and prospects for US climate strategy

The objective of this paper is to assess recent developments and prospects for future changes in United States (US) climate strategy. In doing so, the paper explores some of the key factors that have shaped strategies and policies to date, distinguishing between factors related to institutional and governance structures, linkages between science and policy, energy technology and the role of interest groups. Against this background, the paper attempts to explore future development paths for US climate policy. More specifically, the paper assesses opportunities for policy changes compared to the preferences of the current administration, and the prospects for future linkages between US and international climate change strategies. In brief, the paper argues that substantial changes are unlikely to take place in the near to medium term, leaving open, however, the possibility of wide-ranging changes in domestic politics or major incidents that could facilitate a shift in the perceived need for near-term action.     

Trading places: The evolution of the retail sector in the new German Länder since unification

After unification in 1990 the German government was faced with the task of modernizing the economies of the five new Länder. This process has focused on service sector expansion, particularly the growth of consumer services, which were underdeveloped in the German Democratic Republic. This paper presents a preliminary survey of the impact of the political transition on the structure, organization and spatial pattern of retail services. The new retail sector is characterized by channels of distribution imported from West Germany, uneven development of retail services, and the survival of artefacts from the retail system of the socialist era. Close convergence with levels of retail provision in the old Länder has not been achieved and the changing nature of economic, legislative and political conditions render further expansion problematic. The introduction of legislation to regulate retail growth, the increasingly contested nature of retail change and the complex politics surrounding economic redevelopment in eastern Germany will influence the nature and extent of future retail development.