Eco-cultural niches of the Badegoulian: Unraveling links between cultural adaptation and ecology during the Last Glacial Maximum in France

This study details an application of eco-cultural niche modeling (ECNM) using two modeling architectures—a genetic algorithm (GARP) and maximum entropy (Maxent)—aimed at examining the ecological context of sites with archaeological remains attributed to the culture termed the Badegoulian (ca. 22–20 k cal BP), which dates to the middle part of the Last Glacial Maximum (ca. 23–19 k cal BP). We reconstructed the ecological niche of the Badegoulian and assessed whether eco-cultural niche variability existed within this technocomplex. We identified two broad but distinct spatial entities in the distribution of Badegoulian sites based on lithic raw material sources and circulation, and found that these spatial units share a similar ecological niche. We discuss the implications of territorial differentiation within this niche in light of research on land use by culturally affiliated groups within a broad cultural entity. We propose that Badegoulian circulation networks reflect distinct social territories associated with particular conditions within a single ecological niche. This study illustrates the utility of combining ecological niche reconstructions with archaeological data to identify and evaluate diachronic trends in cultural continuity for situations where such patterns may be missed when the focus of study is restricted solely to lithic technology and typology.     

Problems of Analysis by FTIR of Calcium Sulphate–Based Preparatory Layers: The Case of a Group of 16th‐Century Portuguese Paintings

This paper provides a contribution to FTIR analysis of calcium sulphate‐based grounds of paintings when a mixture of compounds with different degrees of hydration is present. The study is based on the analysis with that technique, electron microscopy coupled with energy‐dispersive X‐ray spectrometry and X‐ray diffraction of both the grounds of 16th‐century Portuguese paintings and reference samples prepared with anhydrite and calcium sulphate dihydrate bound in an animal glue solution. It is shown that the interpretation of the degree of hydration of calcium sulphate ground samples using FTIR cannot be based solely on the study of the hydroxyl bands, as is usual in routine work, but that small deviations of the S–O vibration bands are an important indicator of the presence of anhydrite in the grounds.     

Taming a land. Power politics and the growth of complexity in the north‐east of the iberian peninsula during the first millennium BC: The lower ebro region

In this paper we examine the structure of politically complex societies in the north‐east of the Iberian Peninsula during the first millennium BC, using the Lower Ebro region as an example. Drawing on data provided in recent years by archaeological research, we discuss the combination of territorially hierarchical and heterarchical phenomena. At the same time we reassess the chronological framework in which this sociopolitical process took place. To do so, we rely more on information about the evolution of the protohistoric societies in the region under study than on information about material culture. We present a model that may serve as a starting point for future research.     

A Social History of Trans-Imperial Diplomacy in a Crisis Context: Herbert von Rathkeal's Circles of Belonging in Pera, 1779–1802

ABSTRACT

This article explores the multiple circles of diplomatic agents and their social belonging in the context of the international crisis in late eighteenth-century Istanbul, drawing upon the private papers of the imperial internuncio at Pera between 1779 and 1802. The son of an Irish Jacobite supporter who became a Jesuit and then a radical reformer in Vienna, Peter Herbert von Rathkeal was also a member of the Pera society in which he was born and raised. An agent of one of the most influential trans-imperial households established in Friuli, and a member of the Austrian and British nobilities, Herbert sought to become an eminent actor of the Ottoman diplomatic scene while remaining the patron of a cosmopolitan commercial-cum-political clientele. To study Herbert's actions is to question the model of diplomatie de type ancien in a cross-cultural and fast-changing context of crisis. Despite the collapse of the old diplomatic order with the breakdown of the French Revolution, and despite rising tensions generated by the increasingly sensitive ‘Eastern Question’, this article reveals how Herbert von Rathkeal managed to maintain a certain stability in Istanbul due to the economic and social resources, which his different circles of belonging opened up for him.     

Popular Economies In,Against, and Through the Platform

Behind the conjunctural growth of popular economies in Brazilian cities lies a set of entangled disputes over urban density with important political consequences. While popular economic agents are repressed by local governments, informal work hired through digital platforms grows exponentially and engenders new precarious forms of assembling labour relations in, and extracting value from, global South cities. The contrasts and indirect relations between digital platforms and popular economic agents are important in understanding the growth of platforms, which hinges on accessing low-wage workers whose attempts to make an independent living are otherwise prohibited. This dynamic has resulted in the political mobilisation of popular economy agents and their alliances with urban social movements. Through this paper, I examine how their networking and particular disputes for a right to the city hold potential for the emergence of other economies.     

Experimental Out-Of-Plane Behavior of Brick Masonry Infilled Frames

ABSTRACT

The vulnerability of masonry infills within reinforced concrete (rc) frames under out-of-plane loading induced by earthquakes has been observed in several past earthquakes through severe damage and often total collapse. Although the infill panels are assumed as non-structural elements, their damage or collapse is not desirable, given the possible consequences in terms of human life losses and repair or reconstruction costs.

Therefore, it is important to gather better insight on the out-of-plane behavior of existing infills so that strengthening guidelines can be derived. In this scope, the main objective of this study is to analyze the out-of-plane experimental behavior of masonry infilled frames that are characteristic of Portuguese buildings and can be seen in other south European countries. In the experimental study carried out, different parameters affecting the out-of-plane response of infilled frames were considered, namely, workmanship, existence of openings and prior in-plane damage. The experimental program was designed to test six half-scale specimens. The out-of-plane loading was applied uniformly to the brick infills by means of an airbag to simulate the effect of earthquakes.