Critical reassessment of putative Acheulean Porosphaera globularis beads

Excavations at Acheulean sites in northern Europe at the end of the 19th century have yielded fossil sponges belonging to the Late Cretaceous species Porosphaera globularis. The spherical morphology of these fossils, their small size, and the presence of a natural complete perforation in their center have led some archaeologists to interpret them as the oldest known beads. Others argue that the presence of these fossils at archaeological sites is due to natural processes. Re-examination of material collected during the 19th century has recently revived the bead interpretation. We tested the bead hypothesis by analyzing 13 samples of Porosphaera from nine sites in Britain and France. We conducted morphometric and microscopic analyses on specimens recovered from archaeological sites (n = 349), a natural geological sample, which was collected directly from Cretaceous strata (n = 352), and a sample from a Bronze Age burial (n = 43). Reappraisal of contextual data shows that the association of these finds with Acheulean artifacts is uncertain. Our results show that archaeological specimens are significantly different in size and perforation pattern from those of the natural geological sample. This may be due to size-sorting caused by sedimentary processes, size-selection by Palaeolithic people or by 19th century collectors. Modifications of the fossils' natural shape were detected on a few specimens in the form of localized abrasions and microchipping along the hole margins. A single specimen displays a facet close to the hole produced by grinding. The surfaces of these features exhibit a hue lighter than that observed on the remainder of the specimens indicating that they may be recent in origin and due to post-excavation and preservation treatment. However, this seems contradicted, for some specimens from Bedford, by the fact that according to Smith, W.G. [1884. On a Palaeolithic floor at North-East London. Journal of the Anthropological Institute of Great Britain and Ireland 13, 357–384] the specimens bearing microchipping and abrasions were found by him and “not touched or manipulated by the workmen”. We conclude that new excavations of these sites, involving systematic screening of sediments, are needed in order to attempt to solve the Porosphaera “mystery”.     

The Abandonment of the ZH-Mozartstrasse Early Bronze Age Lake-settlement. GIS Computer Simulation of the Lake-level Fluctuation Hypothesis

Although 'lake-dwellings' existed from the middle of the fifth millennium to the eighth century BC, the entire phenomenon was not a continuous one. There are several periods when the lake shores were abandoned and subsequently reoccupied. The pattern of occupation depends on cultural as well as environmental factors, amongst them the topography and the climate.
Unlike the southern part of the Alps, which seems to have had a more regular occupational pattern throughout the Neolithic and the Bronze Age, the northern Alpine region shows a marked discontinuity along most of the lake shores. Two relevant breaks in lake-shore occupation are known within the northern Alpine region Bronze Age. The first occurred between the 24th and the 20th centuries BC, and the second from the 15th to the middle of the 12th century BC.
The Early Bronze Age site of ZH-Mozartstrasse, situated on the western extreme of Lake Zurich (Switzerland), was abandoned immediately before the beginning of the second major occupational gap in 1503 BC. Two other Early Bronze Age sites namely Bodman-Schachen 1 on Lake Constance, and Arbon-Bleiche 2 on the Swiss part (the southern shore) of the same lake, follow a similar chronology in occupation; and they were both abandoned in the last decade of the 16th century BC.
A possible cause of abandonment is discussed in this paper using an environmental approach related to an abrupt change of climatic conditions which resulted in an increase of the lake levels which forced those prehistoric populations to leave the proximity of the lake shores. Following the implications of pollen and sedimental analyses, the transformation of the Bronze Age landscape caused by the lake water invasion will be simulated with the help of CAD and GIS computer programs.     

Seismic Assessment of a Monumental Building through Nonlinear Analyses of a 3D Solid Model

ABSTRACT

The paper analyzes the static behavior and the seismic vulnerability of the “San Francesco ad Alto” building in Ancona (Italy), which is currently used as a Regional Headquarter of the Marche Region by the Italian Army and was formerly a monastery. The global static structural behavior and the dynamic properties have been evaluated using the Finite Element modeling technique, in which the nonlinear behavior of masonry has been taken into account by proper constitutive laws. The concepts of homogenized material and smeared cracking are used to evaluate the capacity of the monastery to withstand lateral loads together with the expected demands resulting from seismic actions (N2 method), using a nonlinear static analysis (pushover). The comparison of seismic demand and capacity confirms the susceptibility of these types of buildings to extensive damage and collapse, as frequently observed in similar buildings. This paper aims to point out that advanced numerical analyses can offer significant information on the understanding of the actual structural behavior of historical buildings. It is believed that the methodology and the overall conclusions of this case study are valid for many historical monasteries in Europe.     

Seismic refraction tomography surveys as a method for voids detection: an application to the archaeological park of Cava Ispica,Sicily, Italy

Geophysical surveys are commonly used in areas where the presence of ancient civilizations is historically documented. These investigations are able to detect through indirect methods the presence of bodies or structures in the subsoil measuring the variations of some physical parameters, obtaining information about archaeological remains without causing harm to them.

In the present study, we investigated the presence of anthropogenic buried cavities partially filled with rubble material, in an area located in the northern part of Cava Ispica, one of the most important archaeological sites located in south-eastern Sicily. The results of seismic refraction prospections, processed with tomographic methods, are presented and discussed. The entire valley contains prehistoric burial sites, Christian catacombs and residential units of various kinds. Despite the numerous searches made over past years, much still remains to be discovered.

The seismic refraction tomographic data, analyzed in 3D, revealed the presence of low velocity values (<400 m/s) areas that, considering the lithotypes locally present and the features of other archaeological structures discovered during previous surveys, can be ascribed to the presence of possible cavities. The obtained results show how such geophysical inspections represent an important preliminary tool for archaeological surveys.     

In search of a Mediterranean creativity. Cultural and creative industries in Italy,Spain and Turkey

The Mediterranean region has been increasingly receiving attention in recent years. This is due to the heterogeneity of the countries composing it, which raises several problems in business collaborations, but also unfolds several cross-national economic opportunities among Mediterranean countries. The analysis of cultural and creative industries can be useful to show that this area has many similarities, making intercultural exchange and cross-national economic development possible. This research starts from the comparison of three main Mediterranean countries situated both in Europe and outside, Italy, Spain and Turkey, and aims at highlighting the most striking similarities and differences of their features. The creativity specialization found in this region is alike, which allows us to begin to discuss the idea of a Mediterranean creativity.     

European plans for the smart city: from theories and rules to logistics test case

City evolution is connected to social, economic and technological evolutions. New technologies induce further changes, which are highly innovative, which again affect the urban and territorial systems. The city once again adjusts to new opportunities in relation to information and communications technologies, energy and mobility. In this paper, smart city, configured as a set of interacting systems with people, is focused as a possible model to follow for pursuing sustainability in real cities of the twenty-first century. Three processes are recalled: city development, city planning theories and city rules. Smart city seems to be the convergent point for all processes evolving in European urban areas. Theoretical definitions of smart city are recalled. At the same time, the European Commission is promoting smart city rules for implementation. Moreover, in the last years some local decision-makers implemented specific measures that today can be considered in the class of smart city measures. The objective of the paper is to analyse the European perspectives for smart city, trying to separate the three processes that are strongly integrated, but without formal links. To verify the European smart city approach, a study case concerning city logistics is considered.     

Investigating space-time patterns of regional industrial resilience through a micro-level approach: An application to the Italian wine industry

This paper introduces a new methodology to identify space-time patterns of regional resilience using a micro-level approach. The novel empirical tool combines geographically weighted regression with panel stochastic frontier analysis with endogenous covariates. The analysis is implemented on a panel of farm holdings operating in the Italian wine industry, focusing on the impact of a major institutional change. The results show the effectiveness of the new procedure in identifying geographical clusters of wine producers who reacted to the shock in similar ways. The responses are found to be homogeneous within specific territories and heterogeneous between regions.     

In the shadow of Franz Boas: the Italian Committee for the Study of Population Problems and the physical assimilation of immigrants (1938–1955)

ABSTRACT

Between 1938 and 1955, the Italian Committee for the Study of Population Problems (C.I.S.P.), headed by the world-renowned statistician and demographer Corrado Gini, organized a number of field expeditions in order to empirically verify the influence of the environment on the bodily changes of immigrants (Albanian and Ligurian ‘colonies’ in Italy, and Italians in the U.S.). Based on original archival sources, this article analyses, first, how the C.I.S.P. organized the demographic, anthropological and medical investigations on the physical assimilation of immigrants, by adopting a specific research model inaugurated in 1911 by American anthropologist Franz Boas; secondly, it shows how C.I.S.P. research was conceived, from the very beginning, as a fundamental contribution to the elaboration of an alternative, ‘Latin’ eugenic agenda as well as a form of critical distancing from the launch of the ‘Race Manifesto’, in July 1938.