Modeling and deterioration mapping of façades in historical urban context by close-range ultra-lightweight UAVs photogrammetry

Deterioration mapping of façades may be a challenging task in historical urban contexts, often characterized by narrow streets and tall buildings. In these situations, the application of Terrestrial Laser Scanning or Terrestrial Photogrammetry does not provide satisfactory results. Furthermore, the use of Unmanned Aerial Vehicles, the so-called “drones”, is generally forbidden in crowded places for safety reasons unless they are lighter than a weight imposed by the regulations in force in each country. This article presents the application of a very small and ultra-lightweight drone (less than 300 g) equipped with a low-cost camera, particularly suitable for operating in very narrow spaces. A close range photogrammetric survey performed to analyze a huge historical building façade in Bologna (Italy) pointed out a good accuracy level, confirmed by the validation of the results carried out by a 3D laser scanner survey. Moreover, a map of the degradation has been realized to support further restoration analysis, demonstrating that this low-cost, fast, and easy-to-use survey technique can be applied to other similar urban contexts at the same time.     

Sclerosing Bone Dysplasia from 16th Century Sardinia (Italy): A Possible Case of Camurati–Engelmann Disease

The skeletal remains of a male aged 45–55 years displaying several bone anomalies were unearthed from the Alghero (Sardinia) plague cemetery ‘lo Quarter’, a burial site dating back to the 1582–1583 AD outbreak. The skeleton, whose stature is about 165 cm, presents a bilateral hyperostosis with increased diameter of the diaphyses of all the long bones of the upper and lower limbs; the metaphyses appear to be involved, while the epiphyses are spared. Marked thickening of the cranial vault is also evident. Radiological study showed irregular cortical thickening and massive endoperiosteal bone apposition; sclerotic changes are observed in the diaphysis of some metacarpals. Computed tomography (CT) cross sections of the long bones displayed a thickening of the cortical portion and endoperiosteal bone apposition. The individual was affected by a sclerosing bone dysplasia, a genetic disease characterized by increased bone density. In differential diagnosis, several sclerosing bone dysplasia, such as hyperostosis corticalis generalisata, craniodiaphyseal dysplasia, craniometadiaphyseal dysplasia, pachydermoperiostosis and Camurati–Engelmann disease, as well as other disorders characterized by sclerosing manifestations, such as Erdheim–Chester disease, mehloreostosis and skeletal fluorosis, need to be considered. The anomalies observed in skeleton 2179 fit with the features of Camurati–Engelmann disease, which is the most likely candidate for final diagnosis. It is highly challenging to evaluate how such a condition may have influenced the individual's lifestyle in terms of development, mobility and quality of life. This individual was probably symptomatic and must have experienced common clinical symptoms, such as pain in the limbs and fatigability. However, the strong development of the muscular insertions and the degenerative changes in the upper limbs suggest that the mobility problems should not have prevented him from reaching a mature age and from performing essential daily activities. The presented case is the unique paleopathological evidence of Camurati–Engelmann disease so far diagnosed. Copyright © 2015 John Wiley & Sons, Ltd.     

‘Heritage talks. Heritage calls’: some instances of the canonisation policy of John Paul II in Italy

During his long pontificate, John Paul II pursued a wide and carefully articulated policy of canonisations whose aim was to underwrite his magisterium by presenting hagiographical models that would convey well-defined pastoral teaching and contain both ecclesiastical and ecclesiological messages for the faithful. The high number of Italians declared blessed and/or made saints analysed in the present article is proof of the special interest the Pope showed in Italy and specifically in the sanctity of the country. The high concentration of beatifications and canonisations of hagiographical figures from Italy can be explained only in part by the canonical system, which regulates the process of canonisation and which makes it easier to open and support a cause, above all from a financial point of view, if the pressure group behind the candidate for sainthood is located near the Vatican. More precisely, what emerges is both the attempt to create a specific public image of Italy as a nation which has been a historic stronghold of Catholicism and is still capable of reacting to secularisation, and the objective of laying down more effective guidelines and robust directives for civil society. In other words, by proposing Italian hagiographical models, John Paul II was striving to mould Italy's national identity in a Christian form, conferring on the country the role of model for other European states.     

Seasonality and season of birth in early Eneolithic sheep from Cheia (Romania): methodological advances and implications for animal economy

Cheia (early 5th millennium cal BC) is a prehistoric village in the Dobrodgea province in Romania. Its occupation is attributed to the Early Eneolithic period or Hamangia III phase. The exploitation of animal resources is heavily dominated by husbandry. Although cattle are dominant, they were complemented by caprines, mainly sheep, exploited for tender meat (as highlighted by a 6–12 months age class peak in the mortality profile). Sheep reproduction patterns were investigated through stable isotope analyses in order to characterize the annual rhythms of slaughtering for tender meat acquisition while informing a more general picture on sheep demographical management and animal husbandry at the settlement. Results from δ¹⁸O analysis on second and third molar enamel were modeled and compared with modern reference populations. Sheep births took place over less than four months, from late winter to early summer. From this it could be concluded that tender meat could be provided most of the year, excepted over short period in early summer. Finally, comparison of datasets obtained on the M2 and M3 suggests that the M2 presents a more accurate representation of birth seasonality due to lower inter-individual variability in the chronology of tooth growth.     

Transnational Migration and the Economy of Funerals: Changing Practices in Ghana

Migrants are increasingly leading transnational lives, impacting the institutions that shape local economies both in their place of residence and in their home communities. One example of this is the institution of funerals in developing countries. Funerals are becoming multi‐sited events as migrants from developing countries play important roles in the organization, financing and practice of funeral ceremonies in their home countries. Funerals thus give rise to flows of money, goods and people across national borders, ultimately affecting different economies around the world. This article uses a multi‐sited research design to follow the flows associated with a funeral held in a village in the Ashanti Region of Ghana. Detailed data were collected simultaneously in four locations involved in the funeral, and a multiplier analysis was used to trace funeral spending in different locations and sectors. The analysis shows that funeral spending supports various economic sectors in Ghana and across the globe, reinforcing the nature of funerals as (partly) economic events, which should be included in economic analyses of remittances and migration. Funeral practices are modified in various ways to accommodate transnational elements. At the same time, funerals continue to act, even in a transnational context, as occasions for reaffirming ties and a sense of belonging; they form a way for home communities, both rural and urban, to keep migrants interested in them.     

Ancient history and contemporary political theory: the case of liberty

ABSTRACT

Providing an introduction to this special issue on the ancient notions of liberty and its modern perspectives, this essay contains, first, some reflections about the relation between the fields of ancient history and contemporary political theory. Building on the comments of the final roundtable with Kinch Hoekstra and Quentin Skinner, it then makes an attempt at extrapolating some theoretical understandings of liberty from a wide range of geographical and historical contexts covered in the contributions. Moving away from a strictly classical Graeco-Roman focus, these include investigations from the second millennium BCE polities in the Levant to the Byzantine empire in the fifth-century CE.     

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.     

The Sarmatians: The Creation of Archaeological Evidence

According to the general modern view the steppes of the northern Black Sea region, from the Danube to the Ural valleys, in the period from the third century BC to the mid‐third century AD, were inhabited by Sarmatian tribes using a burial mound rite. Several consecutive waves of Sarmatian peoples came to this territory from the East, conquering the local population. This view is based on the paradigmatic explanatory model, which has its roots in the history of the Russian Empire. However, the archaeological culture of the Volga–Don and Ural steppes, known as the ‘Sarmatian Motherland’, is apparently not related to the Sarmatians of the written sources. In addition, the culture of the northern Black Sea region features various kinds of archaeological monuments (settlements, votive depositions, kurgans, flat necropolises), which are characteristic of different cultural‐economic types. This demonstrates the complexity and diversity of the culture in the region, which could be influenced by many factors: the presence of Greek settlers on the northern shore of the Black Sea, the expansion of the Roman Empire, the pressure of nomadic tribes from the East, the advance of the Celtic–Thracian peoples from the West, changing environmental conditions, etc.     

Seismic Vulnerability Assessment and Retrofitting Strategies of Italian Masonry Churches of the Alife-Caiazzo Diocese in Caserta

ABSTRACT

Masonry churches represent the major part of the Italian architectural heritage. Recent earthquakes stressed the high vulnerability of these constructions, provoking heavy structural damage and valuable losses. Different approaches have been developed to assess seismic vulnerability of churches. In particular, the complexity related to more detailed models has induced to define simplified methods, which can be used at territorial scale for a preliminary assessment of structural capabilities of homogeneous assets aiming at providing possible post-earthquake damage scenarios and suggesting general interventions strategies. Therefore, the vulnerability assessment of churches is carried out by subdividing the buildings into separate macro-elements, accounting for different possible collapse mechanisms. In this article, a simplified procedure (M.I.T. 2011) has been applied with reference to churches located in Caserta District, particularly those of the Alife-Caiazzo Diocese, by using the MaChro form compilation, previously developed by the authors. The aim of the study is the application of the above procedure in order to verify the possibility to suggest suitable strategies of intervention for structural retrofitting and seismic risk reduction of the churches located in the area under investigation.