Morphometric distinction between bilobate phytoliths from <Emphasis Type="Italic">Panicum miliaceum</Emphasis> and <Emphasis Type="Italic">Setaria italica</Emphasis> leaves

The development of identification criteria for crop plants based on phytoliths is of high relevance for archaeology, palaeoecology and plant systematics. While identification criteria are available for major food crops, these are mostly based on phytoliths from inflorescences, while other plant parts remain undetected. This paper focuses on bilobate phytoliths from leaves of Panicum miliaceum L. (common millet) and Setaria italica (L.) P. Beauv. (foxtail millet), two taxa that co-occur in regions of Asia and Europe since prehistory and regularly occur at archaeological sites in Eurasia. Leaves of the investigated taxa were systematically sampled to explore the variation of short cells and to collect 27 morphometric variables of bilobate phytoliths with newly developed open-source software. The data was analysed by discriminant analysis, analysis of variance and multiple comparison tests. The resulting morphometric data from five populations per species enables a distinction between the bilobate phytoliths of P. miliaceum and S. italica. Observed differences between populations within species affect only few parameters. This possibility to classify populations of bilobate phytoliths from P. miliaceum and S. italica leaves offers a new method for the detection and identification of these taxa in archaeology, amongst others.     

Land Use Patterns in Central Asia. Step 1: The Musical Chairs Model

Herding and farming coexisted in Central Asia for several thousand years as main options of preindustrial economic production. The relationship between people practicing different variants of these modes of subsistence is known to have been dynamic. Among the many possible explanations, we explore this dynamic by modeling mechanisms that connect aggregate decisions to land use patterns. Within the framework of the SimulPast project, we show here the results from step 1 of our modeling program: the Musical Chairs Model. This abstract agent-based model describes a mechanism of competition for land use between farming and herding. The aim is the exploration of how mobility, intensity, and interdependence of activities can influence land use pattern. After performing a set of experiments within the framework of this model, we compare the implications of each condition for the corroboration of specific land use patterns. Some historical and archaeological implications are also discussed. We suggest that the overall extension of farming in oases can be explained by the competition for land use between farming and herding, assuming that it develops with little or no interference of climatic, geographical, and historical contingencies.     

Non-invasive characterization through X-ray fluorescence and neutron radiography of an ancient Japanese lacquer

Oriental lacquer artefacts represent very interesting objects of investigation, involving a huge variety of materials and manufacturing techniques. Lacquers are very attractive not only for their stylistic features but also for understanding the variety of production processes, time evolution, use and artistic applications involved in their manufacturing. Till recently, the research activity on these materials has been mainly based on standard, more or less invasive, analytical methods. With the aim to characterise a nineteenth century Japanese lacquer in a totally non-invasive and non-destructive way, in situ X-ray fluorescence (XRF) and neutron radiography (NR) have been employed. While XRF suggested an identification of the pigments embedded into superficial layers, NR allowed revealing, in a single measurement, the average bulk properties of the sample.     

Exploring the Contributions of Cultural Theory for Improving Public Deliberation about Complex Policy Problems

In this article, we argue that the Cultural Theory pioneered by Mary Douglas can help resolve two pressing issues in the study and practice of public deliberation. The first of these issues concerns how best to structure deliberative processes (or “minipublics”) that have increasingly been implemented around the world. We use Cultural Theory's analysis of social relations to derive a hypothesis concerning the ideal design of minipublics, and outline research strategies to test the hypothesis. The second issue pertains to scaling out minipublics. We describe John Dryzek's and Simon Niemeyer's influential proposal for deploying discourses to make public deliberation more representative, and discuss the limits of their proposal. Furthermore, we show how Cultural Theory's analysis of people's cultural biases (i.e., collectively shared perceptions, beliefs and norms) may help overcome these limits and how the design of minipublics can generate trust in and legitimacy of public deliberation.     

Ushnus of the Inca provincial region: An analysis of two ceremonial platforms from Inca sites in Catamarca (Argentina)

The Inca polity deployed a variety of strategies in the establishment of imperial relations with the local communities of the southern provinces. These strategies included the translation of symbols materialized in architectural structures. In this sense, the ceremonial platforms denominated ushnus were spaces with particular significance and high hierarchy.