Italian immigration: the origins,nature and evolution of Italy’s migratory systems

This article reconstructs the historical development of foreign settlement in Italy. It shows how Italy is part of a number of different migratory patterns, some of which are interconnected, while others are quite strongly differentiated. This diversity means that the standard images that link Italian immigration with a high degree of social marginalization do not correspond to the more complex realities, and by focusing on short-term aspects simply conflate highly differentiated patterns of migration into one single type. The article begins by reconstructing the patterns of foreign settlement in Italy since the time of Unification and then goes on to analyze the mechanisms of contemporary migrant flows to demonstrate how these derive from very different sets of motives and expectations. The motivations also explain why different immigrant groups respond to the different forms of regulation adopted by the Italian state. The article concludes by reviewing the data presently available on the numbers of foreigners currently in Italy, which indicate that over the last twenty years those numbers have decreased.     

The colour of the facades in Siena’s historical centre: I. Glazings (calcium oxalate films s.s.) and other finishes on the stone materials of the Cathedral’s main facade

This paper focuses on the long-debated topic of the so-called calcium oxalate films: their origin and meaning but also their age and original appearance. The restoration of the main facade of the Siena Cathedral provided a unique opportunity to this end, thanks to the possibility of an extensive and detailed sampling and (as rarely happens) a sufficiently accurate historical knowledge of the construction vicissitudes. This work, mainly based on a polarising microscopy study (coupled with X-ray diffraction and SEM-EDS analyses) of over a thousand thin and ultra-thin sections of 400 microsamples, demonstrates that the current relicts of films are the result of alteration and decay of ancient treatments. In most cases, these were linseed oil-based glazings (the use of this substance is confirmed by historical documents) and pigments. Their role was essentially aesthetic; their use dates the beginning of the fourteenth century and continued at least until the eighteenth century.

Espace,temps et cognition

Revue de Synthèse - La cognition humaine paraît étroitement liée à la structure de l'espace et du temps relativement auxquels le corps, le geste,...     

Effects of Confidentiality-Preserving Geo-Masking on the Estimation of Semivariogram and of the Kriging Variance

Geostatistical methods, such as semivariograms and kriging are well-known spatial tools commonly employed in many disciplines such as health, mining, forestry, meteorology to name only few. They are based essentially on point-referenced data on a continuous space and on the calculation of distances between them. In many practical instances, however, the exact point location, even if exactly known, is geo-masked to preserve confidentiality. This typically happens when dealing with confidential data related to individuals-health and their biometric parameters. In these situations, the estimation of the semivariogram and, hence, the spatial prediction can become biased and highly inefficient. This paper examines the extent of the bias in the particular case when the geo-masking mechanism is known (called “intentional locational error”) and lays the ground to a full understanding of the phenomenon in more general cases. We also examine how the geo-masking affects the estimation of the kriging variance thus reducing the efficiency of spatial prediction. We pursue our aims by developing some theoretical results and by making use of simulated and real data analysis.     

Selinunte (Sicily) and its productive context: the clayey raw materials applied in a long-lived ceramic production (seventh to third century BCE)

The westernmost of the Greek-Sicilian towns, Selinunte, founded in western Sicily during the second half of the seventh century BCE, gives amazing evidences of a historic activity of ceramic production (seventh to third century BCE). The present study aims to identify the raw materials available in the vicinity of the archaeological site of Selinunte, which were possibly used by the ancient potters, and to characterise them by means of petrographic and chemical techniques. A sampling campaign of clays and sands for tempering was undertaken in the archaeological site and the adjacent area. Moreover, locally produced archaeological bricks and tiles were considered helpful for comparison regarding the definition of local ceramic macro- and micro-fabrics and were analysed as well. The comparison between textural, mineralogical and chemical data allowed us to highlight a good similarity between the clayey materials available in the area and the local ancient bricks and tiles. Their compositional resemblance suggests the hypothesis of a systematic use of the studied clays for ceramic productions from the Archaic to the Hellenistic period. The preliminary archaeometric results obtained so far could enhance the distinction between local manufactures and imports and may well lead to the identification of ceramic artefacts produced by the Archaic-Hellenistic workshops of Selinunte at various consumption sites.     

Small angle neutron scattering study of ancient pottery from Syracuse (Sicily,Southern Italy)

This paper is focused on a spectroscopic study of some pottery shards from an archaeological site in Syracuse (Sicily, Southern Italy), dating back to the Hellenistic–Roman period. Structural characterization was performed at different scales of observation, i.e. from macroscopic to mesoscopic. The main goal was to point out the potentiality of the small angle neutron scattering (SANS) technique as a non-invasive analytical tool in archaeometry, also in conjunction with other, more usual, methodologies. Correlation of experimental data, i.e. macroscopic typology and texture, obtained from petrographic analysis, and radius of gyration and fractal dimension of the interfaces of the mesoscopic aggregates obtained using SANS, together with mineralogical X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis, allowed hypotheses to be made on the production technology of the investigated samples.     

The Enlightenment and the church in the work of Franco Venturi: the fertile legacy of a civil religion

The first part of this essay examines the reasons why the relationship between Enlightenment and religion was central to Franco Venturi's studies on the eighteenth century. In part this came from his own strong secular convictions and from the tradition of secular utopian thought in which Venturi came to intellectual maturity in Turin in the first half of the century, but whose origins lay in the eighteenth century. The essay then explores how these interests guided Venturi's choice to themes and topics, and how his understanding of the relationship changed in the course of his life and writings. The second part of the essay considers Venturi's legacy specifically in relation to this central theme, and discusses the works of subsequent scholars (including the author) whose work has most directly taken up and developed Venturi's own concern to explore the origins of different forms of secular religion in the age of the Enlightenment.