Assessing individual systemic stress through cortisol analysis of archaeological hair

As a product of physiological status and the social and physical environments, stress has significant impact on health and well-being in both ancient and contemporary societies. In bioarchaeological research, stress is characterized using an array of skeletal indicators that record stressful periods during childhood and adulthood. In modern clinical research, exposure to stress can be assessed using systemic cortisol levels that have been shown to fluctuate in response to experienced stress. Analysis of cortisol levels in archaeological hair should enable assessment of stress during a short, but critical, period of an individual's life. For this pilot study, we selected hair samples from ten individuals from five different archaeological sites in Peru, and analyzed them in segments to determine cortisol levels. These data demonstrate that it is possible to observe biogenic patterns of cortisol production, and that individual experiences of stress can be reconstructed for the period of time represented by each hair sample. Analysis of cortisol levels in hair has the potential to be a valuable short-term dynamic stress indicator that will complement paleopathological and biochemical studies of health and stress, and permit the reconstruction of increasingly detailed life histories.     

The Disconnected Innovation of New Urbanity in Zuidas Amsterdam, Ørestad Copenhagen and Forum Barcelona

In the latest generation of large-scale European peripheral development projects, a growing ambition is visible to plan more urban environments. We refer to this intention as planning for “new urbanity” since the aim is to reintroduce into a new timeframe and location the traditional urban concepts of density and mixing uses. Empirical evidence shows, however, that the path to realize such ambitions has been very difficult. This article presents a study on governance factors influencing the trajectory from initial ambitions towards the first physical results in three cases. An analysis is made of the different dimensions of framing of these projects in their respective metropolitan action space and of the rules that structure their operational domains. This is the basis to question the extent to which the ambition for new urbanity has developed in a social norm influencing acceptable behaviour among actors. The conclusion is that the narrowly defined operation spheres of these projects are weakly connected to important societal domains that could have better supported these ambitions. New urbanity has, therefore, predominantly remained a disconnected, free-floating, “good idea” without strong material results. It is also in danger of becoming an extremely privatized planning concept, deviating from its original spatial and socially integrative nature.     

Do land use restrictions increase restaurant quality and diversity?

There is significant evidence that restrictions on residential land use reduce housing supply, increase house prices, and limit inflows of low‐income households. Local decision‐makers often argue that their efforts are mere attempts to preserve local amenities. We provide evidence that there is some truth to this claim: that residents of cities with more restrictions on land use appear to have access to higher‐quality and more diverse restaurants. In the process, we develop measures of restaurant quality based on organically generated data that, while strongly correlated with expert assessments, are more easily calculated at high frequencies and levels of geographic granularity.     

Early cat taming in Egypt: a correction

A cat skeleton from a Predynastic burial in Egypt that was previously labelled as Felis silvestris is re-identified as Felis chaus. This means that the previous claim needs to be withdrawn that the specimen represents early evidence for taming of Felis silvestris that ultimately led to domestication. However, the statement that the small felid has been held in captivity for several weeks, based on the presence of healed fractures, is still valid.