Stable isotopes in human skeletons of Southern Ontario: reconstructing Palaeodiet

Most native plants of Ontario use the C₃ photosynthetic mechanism and therefore have relatively low ${}^{13}\text{C}{}^{12}\text{C}$ ratios; maize is a C₄ plant and is relatively enriched in ¹³C. The proportion of maize in the diet of a human can therefore be estimated from the ¹³C-content of collagen of fossil bone. We have used this method to follow the increase in consumption of maize in ancient native populations over the interval from AD 400 to 1650, and to quantify the amount of maize consumed. Maize consumption rose gradually to a maximum of 50% of the diet by AD 1400. These data agree with archaeologically derived data for this region, and with previous isotope studies in the northeastern U.S.A. In some of the latter, however, the maximum percentage of maize consumed has been overestimated because maize was assumed to have a δ¹³C value of ?12·5‰; our studies of archaeological specimens show the correct value to be closer to ?9‰. The introduction of beans into the native diet about AD 1100, should have caused a decrease in the ¹⁵N content of human bone collagen because legumes are deficient in this isotope, with respect to meat and fish. However, we observe no significant change in the ${}^{15}\text{N}{}^{14}$N ratio of human bone collagen over the period from 2300 BC to AD 1640. We conclude that meat and fish remained the main sources of protein even after the advent of agriculture into this region.     

Seasoned or green? Radial cracks analysis as a method for identifying the use of green wood as fuel in archaeological charcoal

For several years, sociological questions have been central in anthracology. The development of socio-economic approaches based on the recognition of anatomical signatures in wood has made it possible to focus on topics related to firewood use and its management. The presence of radial cracks (RC) on archaeological charcoal is generally interpreted as the result of the burning of green wood. The present study proposes a verification of this theory by the experimental combustion of seasoned and green wood of Scots Pine (Pinus sylvestris L.). Experimenting with this species was a research priority since it was the dominant taxon (representing 80-100% of the charcoal remains) identified in the Palaeolithic European sites under consideration.The experiments were conducted using two different methods: (i) inside a muffle furnace that allowed us to control the combustions, but in which the combustion process is quite different from most archaeological situations and (ii) in an open fireplace, less controllable but closer to the archaeological conditions. The systematic quantification of the number, length and width of the radial cracks (RC) measured on the transversal sections of the experimental samples demonstrates that (i) radial cracks occur independently of the moisture content of the wood before the combustion (on green and seasoned wood); (ii) however, the average number of radial cracks (RC/cm²) allows distinguishing seasoned from green wood; (iii) in the muffle furnace, the size of the RC appeared to be a good criterion for discriminating seasoned and green wood, but this observation was not confirmed by the open-air combustions. Our results clearly show that the appearance of radial cracks is not diagnostic of the combustion of green wood. Nevertheless, the number of radial cracks (RC/cm²) could represent a new method that might help identifying the combustion of green wood in archaeological charcoal samples.     

The Natural Contract: From Lévi‐Strauss to the Ecuadorian Constitutional Court

In 2008, the Ecuadorian Constituent Assembly became the first juridical body in the world to legalize what Michel Serres might have called a ‘natural contract.’ With the assistance of the U.S.‐based Community Environmental Legal Defense Fund, representatives at the Assembly in July of 2008 re‐wrote their 1998 constitution to include a landmark series of articles delineating the rights of nature — a notion long familiar to Indigenous communities in the Andean region, actively propagated by anthropologists like Claude Lévi‐Strauss at the French National Assembly as early as the 1970s, and often mocked by mainstream Western jurists for its conceptual confusion about the sorts of entities that can properly be said to have rights. Drawing on the experiences of activists currently engaged in the first national‐level lawsuit to make use of these rights as well as a range of both activists and non‐activists involved in alternative implementations of them, the article explores the possibilities, limitations, and paradoxes of this extension of rights‐based discourse. At a time when the natural world is increasingly being talked about at the United Nations and elsewhere not as a ‘rights‐holder,’ but as an ‘ecosystem services provider,’ I suggest that while the discourse of ‘rights' signals promising shifts in how Andean governments are conceptualizing agency and responsibility in ways that productively break with the trend toward marketization, it also runs the risk of providing the administration with symbolic cover for its intensifying commitment to what Eduardo Gudynas has called, a ‘new extractivism.'     

The troublesome life of peaceful atoms in Denmark

The Danish Atomic Energy Commission (AEK) was created in 1955 with the remit to promote ‘the peaceful exploitation of atomic energy for the benefit of society.’ Between 1956 and 1963 the AEK, which had been preceded by a number of early private nuclear initiatives, established an ambitious atomic energy research facility at Risø, some 40 kilometers west of Copenhagen. For most of this period the AEK was chaired by the celebrated physicist Niels Bohr. In spite of strong support from relevant actors in Danish society and Risø’s management, Denmark never built commercial nuclear power stations. Today Risø has undergone a complete metamorphosis from atomic energy research facility to a national laboratory, doing research and development on a broad range of alternative energy sources. Using concepts and approaches like national innovation systems and technological nationalism, the present paper will explore why and how this remarkable development took place.     

Local and Regional Development in Global Value Chains,Production Networks and Innovation Networks: A Comparative Review and the Challenges for Future Research

Globalization as a process has developed exponentially over the past 20 years, generating multiple and opposite effects for local and regional development (LoRD). This has created both new opportunities as well as raising new threats for local actors, both public and private. This special issue sets out to consider the prospects for LoRD in this context. Our aim in the introductory article is to consider how globalization may bring about LoRD. We do this through a comparative review of three critical analytical frameworks that have been used in recent years to examine the changing dynamics of globalization and their consequences for local production systems, namely global value chains, global production networks and global innovation networks. We provide an overview of these distinct approaches, identifying their strengths and weaknesses. Our argument is not that any one of these approaches is necessarily “better” than the others, but rather that to formulate a more complete and dynamic territorial perspective on regional development in the context of globalization, there needs to be an attempt at (eclectically) integrating the elements of these three distinct frameworks. The article then goes on to show how individual contributions in this special issue push forward this agenda, drawing on these distinct analytical frameworks to consider the transformative prospects for LoRD.     

“GIS A JOB”: WHAT USE GEOGRAPHICAL INFORMATION SYSTEMS IN SPATIAL ECONOMICS?*

ABSTRACT Geographical information systems (GIS) are used for inputting, storing, managing, analyzing and mapping spatial data. This article argues that each of these functions can help researchers interested in spatial economics. In addition, GIS provide access to new data that is both interesting in its own right, but also as a source of exogenous variation.