Philosophie de la machine

Sans résumé Ses recherches portent sur les liens entre métaphysique et technique à la Renaissance et, de manière plus récente, sur la philosophie de la machine. Il travaille acutellement à une anthropologie philosophique du recours aux automatismes. Il a notamment publi’e ?Mathématiques, création et humanisme chez Nicolas de Cues ? (Revue d’histoire des sciences, t. 59, n^o 2, 2006); ? L’homme à l’image de Dieu, Ma?tre Eckart, Nicolas de Cues, Descartes ? (dans L’Image, Paris, Vrin, 2007).     

AGING NATIONS AND THE FUTURE OF CITIES*

ABSTRACT We investigate whether an aging population may challenge the supremacy of large working cities. To this end, we develop an economic geography model with two types of individuals (workers and retirees) and two sectors (local services and manufacturing). Workers produce and consume; the elderly consume only. As a result, the mobility decision of workers is driven by both the wage gap and the cost‐of‐living gap, unlike the elderly who react to the differences in the cost of living only. We show that the return of pre‐industrial urban system dominated by rentier cities does not seem to be on the agenda. Quite the opposite, the future of large working cities is still bright, the reason being that today's urban costs act as a strong force that prevents a large share of local services and manufacturing firms from following the rentiers in the elderly cities, while the supply of differentiated b2c services impede their complete separation.     

Cross-Border M&As and the Changing Economic Geography of Europe

This study investigates the patterns of corporate mergers and acquisitions (M&As) involving firms located in the EU25 as well as in the four EFTA countries between 1998 and 2003. Against the background of a reflection on the concept of the firm in economic geography, it uncovers the cross-border balance of M&As across European states and identifies the factors that may explain the levels and patterns of corporate takeovers across Europe. The results indicate that the traditional motives of access to new and core markets, the effects of geographical proximity, and the internalisation of localised capabilities (proxied by a skilled and innovative labour pool) represent the key drivers of European M&As, while institutional factors, such as European integration or language barriers, appear to be less influential.     

Picturing the city: young people's representations of urban environments

Urban environments form the setting of everyday life for most Western young people. This article explores visual representations of cities made by young people in a range of environments within four countries. The findings inform a larger study on urban geographies within geography education. We analyse students' drawings of cities regarding physical characteristics, activities and issues. There are many commonalities between drawings from the four countries, the majority showing a ‘big, busy city’ representation with skylines, traffic and shopping areas. There are also distinctive characteristics for each set, for example Finnish students tended to emphasise environmental and social issues more than in the other countries. In relation to methodology, we conclude that drawings, supported by contextual information, are a useful source to understand young people's representations of cities. Further, this research supports thinking about how to merge young people's experiences and imaginaries with the teaching of urban geography.     

Wu Youxing 吳有性 et les Épidémies Pestilentielles

Faced with the terrible mortality of the epidem ics during the last years of the Ming Dynasty (1368–1644) and the inefficacy of the treatm ents applied, Wu Youxing (ca 1580–1660), the author of the Wenyilun 温疫論 (Treatise on warmfactor epidemics), completed in 1642, proposed a new etiological explanation of these diseases, with a highly critical attitude towards his predecessors. Reception to the book was mixed; it sometimes encountered opposition due to the audacity of some of Wu Youxing’s conceptions, but also, most likely, to the discrepancy between the author’s assertions and the failures in actual application.     

The Holocene Archaeology of Southwest Ethiopia: New Insights from the Kafa Archaeological Project

Abstract  

Southwest Ethiopia’s cool, moist, and steep highlands differ from other African environments, and may have fostered distinct patterns of Holocene resource use and intensification. Prior to 2004, only a few archaeological projects probed eastern and northern margins of this region. The Kafa Archaeological Project (2004–2006) excavated ten caves and rockshelters in different environments in the heart of southwest Ethiopia to obtain a Holocene chronology and compare it with adjacent regions. At Kumali Rockshelter, middle Holocene deposits show use of a microlithic industry to obtain wild game, and excellent macrobotanical preservation promises to reveal changes in plant use from 4,700 ¹⁴C bp to the present. Ceramics and domestic animals appear at Kumali and Koka by ~2,000 ¹⁴C bp, suggesting herding and pottery making appeared late and contacts with neighboring regions were tenuous. Technologically conservative people continued microlith production and sporadic rockshelter use into the eighteenth century CE.