The nation as seen from below: Rome in 1870

When Rome joined the Kingdom of Italy in 1870, its symbolic importance played a large part in its role as the new capital of the nation-state. That very symbolic weight, though, left but a small space for the Romans themselves, particularly the lower classes. While recent scholarship on Italian nation-building has explored the cultural project underlying its political developments, it still remains to be understood how the lower classes first experienced and responded to their incorporation into the nation. Courted by the new nation-state, its clerical opposition and its radical opposition alike, their Risorgimento was different from that of the Romantic tropes informing the new national politics.     

Seismic behavior of two Portuguese adobe buildings: part II —numerical modeling and fragility assessment

Considering the likely unfavorable behavior under seismic action of adobe construction, this article aims at providing a seismic fragility characterization of two adobe Portuguese traditional buildings, using numerical models calibrated over experimental results. The study of such two case-study buildings in the region of Aveiro contributes to the understanding of the seismic fragility of adobe construction in the region in general. The buildings were numerically modeled to estimate their structural behavior under seismic loading using adobe material properties that were calibrated based on the experimental results of a cyclic in-plane test of a full-scale double-Tshaped adobe wall. The method chosen to characterize adobe masonry and model its nonlinear behavior followed a total strain crack-based macro-modeling (TSCM) approach, whereas pushover analysis was carried out to reproduce the pseudo-static experimental test in order to enable a refined calibration of adobe masonry mechanical properties. Fragility functions were then derived, based on the above-mentioned numerical models, using nonlinear static analysis, bringing further insight on the seismic fragility of traditional Portuguese adobe construction.     

Union Army veterans,all grown up

This article overviews the research opportunities made possible by a National Institute on Aging-funded program project, Early Indicators, Intergenerational Processes, and Aging. Data collection began almost three decades ago on 40,000 soldiers from the Union Army in the U.S. Civil War. The sample contains extensive demographic, economic, and medical data from childhood to death. In recent years, a large sample of African-American soldiers and an oversampling of soldiers from major U.S. cities have been added. Hundreds of historical maps containing public health data have been geocoded to place soldiers and their family members in a geospatial context. With newly granted funding, thousands of veterans will be linked to the demographic information available from the census and vital records of their children.     

The technodiplomacy of Iberian transnational railways in the second half of the nineteenth century

In the second half of the nineteenth century Portugal undertook an ambitious public works programme in order to develop the kingdom. In that programme, railways took a leading role, especially those routes that linked the main ports of the shoreline to Spain (and thence to France). To do so, a strenuous effort of diplomacy – or more specifically technodiplomacy – was required to convince Spain to accept cross-border links that served the goals of Portugal. In this paper I will analyse this technodiplomatic process and how two countries with different technological perceptions of railways managed to settle their differences and build five transnational links across their borders over the course of 40 years. I aim to add to the debate about the Iberian cross-border links from the point of view of the history of technology, in particular, and to the discussion about transnational technological systems, in general.     

Shear Vulnerability of Historical Reinforced-Concrete Structures

Modern buildings have been characterized by the rapid spread of reinforced concrete as a novel and versatile building material. Within the assessment of existing buildings, the most sensitive structures are those designed in the first half of the 20th century, when the theory of reinforced concrete and the detailing rules were not yet well established. This study considers the issues related to the gradual understanding of the vulnerability at a territorial scale of structural typologies designed only for vertical loads. In particular, the shear behavior of the buildings in the period between 1920 and 1960 is investigated. The shear strength control of the structural elements of an open-air stadium in Southern Italy is carried on according to Eurocode 2, the American Concrete Institute Code, ACI 318R–2008, and a method based on Arslan’s equation. The results are compared with those included in the original calculus report according to the 1930 Royal Decree-Law (RDL 18/7/1930).     

The spatial scope of agglomeration economies in Brazil

This paper provides evidence about location and colocation patterns of manufacturing entrepreneurship and spatial scope of agglomeration economies in the context of a developing country. Using microgeographic data for all Brazilian manufacturing activities and distance-based measures, we find clear patterns of colocalization between entrants and existing establishments, and that these patterns occur mainly at short distances. For activities presenting colocalization between entrants and existing establishments, our results also indicate that a greater number of incumbent establishments in a given location positively affects the number of entrant establishments that decide to locate there, an effect that attenuates rapidly with distance (generally disappearing after 5 km). This pattern of attenuation is robust to both the inclusion of a comprehensive set of controls for observable and unobservable local characteristics and the use of instrumental variables to address remaining endogeneity concerns.