Space Invaders in Barcelona: Political Society and Institutional Invention Beyond Representation

In the contemporary neoliberal urban dynamics, those agencies that are on the margin of society constantly disrupt the boundaries of civil representation and forge new institutional relations within the dynamics of urban governance. I explore how this process was enacted at the turn of the century in Barcelona, looking at two coeval social mobilisations: the lock‐in of undocumented migrants in the Iglesia del Pi (2001), and the project of las agencias at the Museum of Contemporary Arts (1999–2003), both of which unfolded in the central neighbourhood of Raval. The invasion of the boundaries of civil society emerges here as a double phenomenon—one that develops both within society and in relation to institutions, instituting new modes of urban politics.     

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.     

The way we wear makes the difference: residue analysis applied to Mesolithic personal ornaments from Hohlenstein-Stadel (Germany)

Research conducted by Newell et al. (1990) has lead to propose that during the Mesolithic, the Upper Danube region was inhabited by a “Fish Teeth Band”, characterized by the use of carp fish teeth and exogenous fossil shells as ornaments. However, technological data on these personal ornaments drastically lacked and especially for the fish teeth associated to the Mesolithic burial of Hohlenstein-Stadel that remained completely undescribed until now. The aim of this paper is to establish how the carp teeth from Hohlenstein-Stadel were modified and worn before being deposited in the burial. High-resolution microscopic analysis identifies use-wear traces and a red compound adhering to the surface of the teeth. Structural and elemental analysis of the residue combining light and scanning electron microscopy, infrared spectroscopy, and Raman analysis identify a suspension technique that uses an adhesive composed of an organic binder mixed with charcoal and minerals including hematite, dolomite, and quartz. Ethnological inquiry reveals that this system of suspension, commonly used in traditional societies, is for the first time documented, at Hohlenstein-Stadel, in an archaeological context.     

Successful Cervical Disc Surgery by Professor Angelo Chiasserini Sr of Rome in 1937: A Historical Case Report

Although resection of cervical “chondromas” had been reported since the late twenties, the true nature of this condition was not recognized at that time. This paper reports a case of “inferior cervical radiculitis by herniation of nucleus pulposus” operated by Prof. Angelo Chiasserini Sr, one of the founders of Italian neurosurgery, in January 1937. To our knowledge this represents one of the first examples of correct etiopathogenetic interpretation of cervical disc disease. Surgery was followed by excellent recovery, a quite remarkable result in those times. The case history is reported in detail, and a short historical sketch of cervical disc disease is depicted.     

Fabio Luca Cavazza,the New Frontier and the opening to the left in Italy

This article focuses on the key role played by Fabio Luca Cavazza, founder of the publishing house Il Mulino, in the development of cultural relations between the US and Italy in the early Cold War by drawing on Cavazza’s personal papers, an as yet unexplored archival source. The Department of State and the Eisenhower administration opposed a government that included the Socialists. However, thanks to the special relationship he had with the ‘New Frontier’s men’, in particular Arthur Schlesinger Jr., Cavazza was able to revive the issue, showing how it was in line with Kennedy’s New Frontier policy.     

Average and core silver content of ancient-debased coins via neutron diffraction and specific gravity

The measurement of the fineness of debased ancient silver coins has proven to be a very difficult issue, which has been studied for a long time. In this paper, this subject is analysed, and the various consequences of the silver surface enrichment (SSE) are discussed exploiting the most recent investigations. A new model is proposed for the complex object that is an ancient-debased silver coin, based on the silver profiles measured on some sectioned specimens. The model is applied to a sample of 43 coins, mainly Roman victoriati, Cisalpine and Illyrian drachms (from late III to I century B.C.). The coins are investigated in two different ways: neutron diffraction (ND) and specific gravity (SG). The results of the two measurements are combined via the proposed model to provide a more complete numismatic information of the original fineness of the monetary alloy. As a result, a relation between SSE thickness and SG is derived, which, for these coinages, allows to estimate the original alloy silver content from a simple SG measurement; the same method can be used to study other debased coinages, provided that all the procedure (ND and SG) is applied.     

Sequential Incisions on a Cave Bear Bone from the Middle Paleolithic of Pešturina Cave,Serbia

We present the detailed analysis of a cervical vertebra from a cave bear, found at Pe?turina cave, Serbia, in a Mousterian archaeological level dated by radiocarbon at 43.5–44.6 kyr cal BP, and by ESR to between 93.5 and 102.5 kyr BP. Identified as a portion of the cranial articular facet, the fragment displays ten subparallel grooves. The microscopic study of these grooves and other surface modification present on the bone fragment, conducted with multifocus optical and confocal microscopes and complemented by a taphonomic analysis of the associated faunal assemblage, supports the hypothesis that the incisions were made by humans. Results are used to critically examine ambiguities implicit in the analysis and interpretation of early engravings, a category of material culture that has been playing a key role in the identification of early instances of symbolically mediated behavior.     

From exchange to voice. Voting in southern Italy

The article focuses on the Italian general election held on 4 March 2018, which was notable for the surprising results in southern Italy. These results will be analysed by looking at two dimensions of electoral behaviour: on one hand, participation and volatility, on the other the success of the protest parties, the Five Star Movement (M.5.S.) and the League. These features will be considered in relation to the territorial distribution of the vote. More specifically, in the 2018 election participation was exceptionally high, especially in the south which in some regions saw electors returning to the polls. But electoral volatility is still high. Both factors affected the extraordinary success of new protest parties and collapse of the traditional parties. Traditionally in the south the vote has gone to moderate and pro-government parties, but this time in all constituencies the M.5.S., an ‘eccentric’, protest or populist party-movement, which in many cases took over 40 per cent of the votes, with a peak of 50 per cent in Campania and Sicily. Further, the wave of protest votes favoured another party with no previous support in this geographical area, the League. It may be too soon to say whether these changes in the form and dynamics of the party system are long-lasting and able to achieve a lasting change in the political spectrum, but so far the outcome of election has given a further push to the radicalization of both electoral demand and supply.     

Earthquake-Induced Damage Detection in a Monumental Masonry Bell-Tower Using Long-Term Dynamic Monitoring Data

ABSTRACT

This work investigates the use of an advanced long-term vibration-based structural health monitoring tool to automatically detect earthquake-induced damages in heritage structures. Damage produced in a monumental bell-tower at increasing values of the Peak Ground Acceleration (PGA) of the seismic input is predicted by incremental nonlinear dynamic analysis, using a Finite Element model calibrated on the basis of experimentally identified natural modes. Then, predicted damage effects are artificially introduced in the monitoring data to check for their detectability. The results demonstrate that a very small damage, associated to a low intensity and low return period earthquake, is clearly detected by the monitoring system.