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.     

Spatial Autocorrelation Statistics of Areal Prevalence Rates under High Uncertainty in Denominator Data

We propose a new estimator of spatial autocorrelation of areal incidence or prevalence rates in small areas, such as crime and health indicators, for correcting spatially heterogeneous sampling errors in denominator data. The approach is dubbed the heteroscedasticity‐consistent empirical Bayes (HC‐EB) method. As American Community Survey (ACS) data have been released to the public for small census geographies, small‐area estimates now form the demographic landscape of neighborhoods. Meanwhile, there is growing awareness of the diminished statistical validity of global and local Moran’s I when such small‐area estimates are used in denominator data. Using teen birth rates by census tracts in Mecklenburg County, North Carolina, we present comparisons of conventional and new HC‐EB estimates of Global and Local Moran’s I statistics created on ACS data, along with estimates on ground truth values from the 2010 decennial census. Results show that the new adjustment method dramatically enhances the statistical validity of global and local spatial autocorrelation statistics.     

Military Identities,Conventional Capability and the Politics of NATO Standardisation at the Beginning of the Second Cold War, 1970–1980

This paper uses equipment standardisation as a lens for examining power relationships and the importance of military identity in framing the development of NATO conventional capability. In the face of the Warsaw Pact's overwhelming military capacity the logic of standardisation was compelling. Standardising equipment and making military forces interoperable reduced logistics overlap, increased the tempo of operations and allowed partners to optimise manufacturing capacity. Applied carefully, standardisation would help NATO mount a successful conventional defence of Western Europe, a crucial aspect of the Alliance's flexible response strategy. In this paper, we apply Actor Network Theory to standardisation discussions thereby revealing the incoherence and volatility of NATO's collective strategic thinking and the vast networks of countervailing interests on which this is based.     

Importance of Monitoring,Behavior Analysis,and Diagnostic Techniques for Preservation of Great Historical Structures

A synthetic overview is presented of the motivations, technological possibilities, and benefits of the practice of providing large structures with monitoring installation and interpretative activities. Starting from the large body of experience gained in the field of dam engineering, the gradual penetration of these techniques in the area of preservation of monumental building is surveyed. Particular attention is dedicated to the case of the Brunelleschi Cupola in the Florentine Cathedral of Santa Maria del Fiore. The more pressing needs for the next-future development of these studies and practices are then enunciated, with the auspice that the obstacle posed to their diffusion by the difficulty of collecting adequate financial funds may be overcome in the best interest of the conservation of a precious historical-cultural heritage.     

Parents of global youth: contesting debt and belonging

In the United States, recently arrived migrant youth encounter competing media and institutional discourses that cast them as dependents who have been rendered ‘left behind,’ ‘on their own,’ or ‘unaccompanied’ by their parents. A corresponding narrative emerges in which young migrants’ parents are framed as abusive, neglectful, and ignorant. Combined, these portrayals may garner specialized services and contribute to success in the legal realm. At the same time, however, they fail to recognize and even imperil the intimate intergenerational networks that facilitate transnational migration. In this article, we trace the homogenizing power of public discourses on young people and their families across two diverse ethnographic contexts, that of Chinese and Guatemalan migration. Focusing in particular on narratives of debt and belonging, we argue that the pervasive pathologization of migrant youths’ parents diminishes and contorts valued relationships over time. It correspondingly demands broader efforts to historicize and to contextualize youth mobility.     

The consequences of Wari contact in the Nasca region during the Middle Horizon: archaeological,skeletal, and isotopic evidence

During the Middle Horizon (AD 650–1000), the Wari polity expanded its sphere of control in various regions of the Andes, including Nasca on the south coast of Peru. The nature of the interaction between Wari and local communities varied. This study explores the consequences of Wari contact in the Nasca region at the site of La Tiza, which includes individuals dated to the Early Intermediate, Middle Horizon, and Late Intermediate periods. Using evidence for burial ritual along with demographic, paleopathological and isotopic data, population composition, mobility, diet, and health are investigated. δ¹³C data indicate a relatively stable diet through time at La Tiza with evidence for continued maize consumption, and paleopathological results indicate health problems associated with this type of diet. δ¹⁸O and ⁸⁷Sr/⁸⁶Sr data suggest that most of the individuals buried at La Tiza were local to the area. However, two female adults from the Middle Horizon burials are characterized as nonlocal based on δ¹⁸O and ⁸⁷Sr/⁸⁶Sr values and several individuals overlap with the ⁸⁷Sr/⁸⁶Sr local range for the Wari heartland. In conjunction with the use of new tomb types during this period these results highlight the ideological and populational changes occurring with Wari contact at La Tiza.     

A tribute and a review

On 8–9 May 2010, a deprived chengzhongcun (urban village) in the city of Hefei hosted a session of the Second Hefei Contemporary Art Biennale. In this article, we focus on the artistic practices and the online and offline discussions that they evoked. Drawing upon literature on citizenship, public art, public space and public pedagogy, we analyse the exhibition and its social and political potentialities. Looking at a case study in a country where fear of an aggressive crackdown is part and parcel of the psychology of urban protest, we reflect upon the pedagogical potential of public art in the struggle for equal rights to housing, education and urban space. By paying special attention to the geographical and the pedagogical dimensions of this extraordinary event, we demonstrate that public art can play a role in Chinese citizenship struggles.     

Global heritage: perspectives from the Northern Territory,Australia

This article examines the way in which selected cultural institutions, government and non‐government organisations and individuals in Australia’s Northern Territory have responded to globalising influences on the preservation, interpretation and public face of its history and heritage. It draws upon a number of interviews with local practitioners and professionals in the field to explore the multiple understandings of cultural heritage, history and identity in the Territory, to investigate how competing interests and expectations are managed at the state and local level, and to address issues of sovereignty in the context of global heritage. Respondents indicate that, despite a strong resurgence of local cultural identities, without people on the ground who care about their heritage, efforts by international bodies will have little effect. There has been increasing concern about the protection of local cultures in the face of globalisation, and research such as this is critical in providing feedback to international heritage organisations. Without strong local support for cultural heritage and identities, they can become increasingly vulnerable in a rapidly globalising world. In Australia’s Northern Territory, however, there seems little indication of this happening.     

Postwar development in the Italian Mezzogiorno. Analyses and policies

Abstract

As Manlio Rossi-Doria wrote, in the early postwar years, the Southern Question was primarily an agrarian one. The debate and policies that addressed the Southern Question, however, did not remain confined solely to the agrarian dimension. The transformation of Southern agriculture was inextricably connected to two additional features of the Italian Mezzogiorno: first, the huge demographic expansion, and second, the lack of an industrial sector able to absorb the excessive agrarian population and to lead a process of economic diversification and internationalization. Above all, the solution to the Southern Question was interpreted as a truly national task. The development of the Mezzogiorno was at the basis of the collaboration between Italy and the World Bank throughout the 1950s. That experience became the subject of an intense debate over development policies that went beyond the Italian borders and embraced the question of postwar development worldwide. The Italian experience turned eventually out to be a failure. One feature of that experience remained vital, though, and has been underscored by contemporary scholars: the solution to the Southern Question is to be found at the national level, not just regionally.