EMERGENCE OF LEAPFROGGING FROM RESIDENTIAL CHOICE WITH ENDOGENOUS GREEN SPACE: ANALYTICAL RESULTS

Leapfrog development is a typical form of sprawl. This paper aims at analyzing the existence, size, and persistence of leapfrogging in a dynamic urban economic model with endogenous green amenities. We analyze whether incoming households choose to settle at the fringe of the city or to jump further away depending on their preferences and the structure of the city. We first provide an analytical treatment of the conditions and characteristics under which a first leapfrog occurs and show how the optimal choice is affected by the size of the city, income, commuting costs, as well as the size of the area where green amenities are considered. We then study how further leapfrogging and multiple urban rings may appear and be maintained in the long‐run equilibrium, and how infill processes take place through time.     

Modern roads as UNESCO World Heritage sites: framework and proposals

There has been noticeable development in the protection of linear infrastructure by UNESCO, whether on its cultural, technological or historical merits. However, with the exception of other means of transport incorporated within the field of industrial archaeology or recognised by the CIIC under the category of cultural routes, little or no consideration has been given to roads built from the mid-eighteenth century to the early part of the twentieth century. In view of this situation, this paper has the following aims. Firstly, to define the concept of ‘modern road’ and provide a brief analysis of the historical development and current situation of the same. Secondly, to assess the main contributions made to date regarding the heritage dimension of modern roads. Thirdly, to reconstruct the process of defining linear cultural landscapes, historic transportation corridors, cultural routes and heritage canals, railways and roads, in accordance with the considerations raised by ICOMOS and UNESCO. Finally, to contribute to the debate on the definition, characterisation and assessment of modern roads as world heritage assets, both intrinsically and in relation to established heritage categories.     

Religious Transformations in the Middle Ages: Towards a New Archaeological Agenda

UNDERSTANDING RELIGIOUS CHANGE between the collapse of the Roman Empire and the Reformation forms one of the cornerstones of medieval archaeology, but has been riven by period, denominational, and geographical divisions. This paper lays the groundwork for a fundamental rethink of archaeological approaches to medieval religions, by adopting an holistic framework that places Christian, pagan, Islamic and Jewish case studies of religious transformation in a long-term, cross-cultural perspective. Focused around the analytical themes of ‘hybridity and resilience’ and ‘tempo and trajectories’, our approach shifts attention away from the singularities of national narratives of religious conversion, towards a deeper understanding of how religious beliefs, practices and identity were renegotiated by medieval people in their daily lives.     

Reduction Factors for Seismic Design Spectra for Structures with Viscous Energy Dampers

A simple mathematical expression is proposed to estimate spectra reduction damping factors for seismic design of systems with viscous dampers. The expression is obtained from the ratios between ordinates of uniform hazard spectra associated with two different return intervals (50 and 125 years), corresponding to sites with different types of soil within the Valley of Mexico. The expression proposed depends on the dominant period of the soil, and on both the vibration period and damping ratio of the structural system. Values of the damping factors proposed here are comparable to those recommended by different authors and seismic design building codes.     

The NATO-Warsaw Pact competition in the 1970s and 1980s: a revolution in military affairs in the making or the end of a strategic age?

The NATO-Warsaw Pact military competition at the heart of the Cold War was also the incubator of a ‘Revolution in Military Affairs’ (RMA) in Europe in the 1970s and 1980s, which predates the better-known American concept of RMA of the 1990s.     

Twins in prehistory: The case from Olèrdola (Barcelona,Spain; s. IV II BC)

This paper details the discovery of two perinatal individuals interred simultaneously at the archaeological site of Olèrdola, Barcelona, Spain. Information from the excavation and from the subsequent anthropological study of the recovered skeletal and dental remains suggests that these individuals (OL–2000–8245 and OL–2000–8246) are the first documented case of twins in Iberian period. The possibility of a simultaneous perinatal twins burial at Olèrdola raises new questions concerning about the frequency of twins in prehistory and protohistory. Copyright © 2010 John Wiley & Sons, Ltd.     

Women and Money: Lessons from Senegal

This article examines the complexity and diversity of women's informal financial practices using data from surveys conducted in Senegal. It suggests that these practices are at the centre of a constant dialectic between short‐term and long‐term horizons, between the requirements of daily survival and the demands of community solidarity, and between personal aspirations and collective constraints. These practices also clearly illustrate a desire among the women in Senegal to impose a form of financial self‐discipline, and to create situations that will oblige them to earn income. The socio‐economic diversity among these entrepreneurs is also underscored. Informal financial arrangements are both a product and producer of gender inequalities and inequalities among women, as reflected in the research. This has direct policy implications, especially for microfinance products. If they are to be effective, microfinance services must develop beyond a standard, one‐size fits all model and become more innovative and adaptable to the diverse demands of women. They must be combined with complementary measures that challenge the systemic causes of inequality. Microfinance programmes should draw on informal financial arrangements while challenging their tendency to perpetuate inequality.     

The potential of chironomid (Insecta: Diptera) larvae in archaeological investigations of floodplain and lake settlements

The head capsules of chironomids (Insecta: Diptera) are well preserved in sediments and can be recognised to a high taxonomic level, usually genus and sometimes species. Work on lake sediments has shown that they can be accurate indicators of water temperature, oxygen regimes, and nutrient status (particularly total phosphorus and chlorophyll-a), as well as heavy metal pollution. No systematic chironomid analyses, however, have previously been undertaken on archaeological deposits. In order to address this we assessed the use of chironomids in three types of archaeological deposit; firstly, a lake core at the edge of a lake settlement (crannog), secondly, a palaeochannel infill adjacent to a multi-period settlement site and lastly, a Roman well deposit from a floodplain environment. The chironomid assemblages are shown to vary significantly both between and within the sites and reflect the immediate environment and the adjacent area. The lake sediment assemblage reflects the construction of the crannog through elevated levels of organic detritus, wood and woody debris. The palaeochannel assemblage reveals changing natural conditions and nutrient enrichment probably associated with settlement during the Saxon period. The well assemblage is taxonomically restricted and indicative of organic debris, dead plant material, animal dung and possibly human effluent deposited after abandonment of the well. Dry storage of the palaeochannel and well sediments for several years did not appear to affect the concentration or state of preservation of the head capsules. The chironomid reconstructions are shown to provide an additional indicator of human activity which has the potential to provide quantitative data on the character of aquatic environments associated with archaeological sites.     

Historia, Antropologia, Y Fuentes Orales

Historia, Antropología y Fuentes Orales (HAYFO) is aSpanish-language journal for the study of oral data across diversedisciplinary traditions, such as history, anthropology, andsociology. The journal is edited by Asociación Historiay Fuente Oral, Arxiu Històric de la Ciutat de Barcelona,and Editorial Universidad de Granada. HAYFO first saw the lightin 1989 and is published biannually in Spain. The thirty-seventh issue of the journal is an exciting mix ofarticles with a variety of theoretical and empirical merits.This issue is divided into four main sections. The first sectionis entitled "Denouncement and opacity." This section     

Winding Down in a Quebec Mining Town: a Case Study of Schefferville

The pattern of decline in a mining region is examined using a case study of Schefferville. A critical examination is made of Lucas's model of youth to maturity in community development, and a further two stages are suggested - winding down and closure of a town. The discussion centres on the characteristics of community and corporate winding down in Schefferville: the restructuring of the local workforce, disinvestment, relocation of capital, and company withdrawal from housing, municipal affairs, and public services.
Les auteurs entreprennent une étude du processus de déclin dans les régions minikres en se servant de l'exemple de Schefferville. En partant d'une critique du modtle fait par Lucas sur les stages d'évolution et de maturation d'une communauté, les auteurs proposent d'y ajouter deux autres Ctages, soit celui de déclin et celui de la fermeture définitive d'une ville. La période de déclin est donc caractérisée par la restructuration de la main d'ceuvre, par la diminution des investissements, par la relocalisation de capitaux, et par le retrait de la sociktk minikre au niveau du logement, des affaires municipales, et des services publics dans la ville.