NMR as a new tool for cultural heritage application: The provenance of ancient white marbles

Identifying the origin of marble used in antiquity brings back to light details of the economic, social and political organization of classical societies, and characterizing in depth the chemistry of marble is key to discovering its provenance. Beyond X‐ray diffraction, which could reveal the presence of discriminant secondary crystalline phases and the quantification of accessory minerals combined with a multivariate analysis approach, solid‐state nuclear magnetic resonance (NMR) enables one to recognize the local structure arrangement of both crystalline and amorphous materials by looking at one or more selected atoms. In present paper targets the ¹³C nuclide, and thus the major component of marble, calcium carbonate. Whatever their geological origin, marbles ¹³C‐NMR spectra present only one resonance corresponding to the carboxyl function whose intensity and line width vary from one marble to another. If the variation of the NMR signal intensity observed is the result of great T1 variations (from 220 to 5300 s) and is linked to iron content, the line width reflects defects in the calcite crystal in which calcium has been replaced by another element such as magnesium, aluminium or strontium. The specific profile of the NMR signal has been used successfully to help determine the origin of some archaeological items.     

From folk history to empathy: contesting heritage values in Chinchero,Peru

In the small Peruvian, Quechua-speaking town of Chinchero, processes of heritagization of the Pre-Hispanic legacy encouraged by the State and supported by the tourist industry have been trying to create among the population an obligation of historical and emotional identification with their Inca ancestors. This operation has been mainly effected through the territorial transformation of the vernacular space of the Inca ruins into an archaeological site for tourism consumption. The operation has left out other histories grounded in grassroots events, like the struggle for the land against the abusive landowners that took place during colonial times. More than the distant history of the Incas, it is this kind of more recognisable and meaningful folk history what people remember the most and what largely constitutes the fabric of social memory in Chinchero. It is precisely folk history what forms the basis for local heritage values that, unlike what happens with the Inca remains, express intense affective ties with the physicality of other non-archaeological spaces. In light of these developments, the author explores how the people of Chinchero are contesting official versions of heritage and history by foregrounding the emotional power of their own heritage values.     

How does transportation shape intrametropolitan growth? An answer from the Regional Express Rail

This paper analyzes the influence of transportation infrastructure, and in particular of the Regional Express Rail (RER), on employment and population growth in the Paris metropolitan area between 1968 and 2010. In order to make proper causal inference, we rely on historical instruments and control for all other transportation modes that could be complement or substitute to the RER. Our results show that proximity to an RER station increases employment and population density and, in particular, employment and population growth. The latter effects are higher in municipalities located near RER stations and close to employment (sub)centers. They are also found to be particularly strong for jobs in the service sector, for factory workers, and for highly educated population. We find no impact of the RER expansion on employment growth during the first part of the period, while the effect on population growth appears earlier but declines over time.     

Is the circumference at the nutrient foramen of the tibia of value to sex determination on human osteological collections? Testing a new method

This paper tests the validity of the circumference at the nutrient foramen of the tibia for sex determination on two human osteological collections: the Lisbon Collection of Identified Skeletons (n = 160) and the São Martinho medieval archaeological collection from Leiria, Portugal (n = 57). The methodological approach chosen to conduct the test was the sectioning point method. The overall accuracy (males and females combined) in the Lisbon Collection was 78% and in the São Martinho Collection it reached 90%. In both series, females were more accurately classified than males. This paper advocates the importance of developing and using sample specific methods for sex determination in modern and in archaeological human osteological assemblages. Copyright © 2010 John Wiley & Sons, Ltd.     

Maize,beans and the floral isotopic diversity of highland Oaxaca,Mexico

Oaxaca, Mexico has been inhabited by humans for over 10,000 years. From the time of earliest habitation, this environment provided a wide floral subsistence to its human inhabitants, notably documented at the cave site of Guila Naquitz. Light stable isotopes, primarily carbon and nitrogen, have been used in dietary and environmental reconstructions throughout Mexico and Central America. We report a large isotopic study of wild and market plants from Oaxaca that demonstrates 1) overlapping δ¹³C values of C4 plants, including maize, and plants that utilize the Crassulacean Acid Metabolism (CAM) pathway for biosynthesis, 2) the existence of a significant C4 grass biomass, 3) the lack of isotopic separation in the δ¹⁵N of legumes and non-leguminous plants and 4) the increase in the nitrogen isotopic composition of crop plants relative to wild plant averages. These four observations are potential complicating factors in interpretations involving the origins and spread of maize agriculture, the relative amount of maize in the diet and assessments of trophic level or meat contributions to the human diet.     

Neuromyelitis optica: Application of computer diagnostics to historical case reports

The retrospective diagnosis of illnesses by medical historians can often be difficult and prone to bias, although knowledge of the medical disorders of historical figures is key to the understanding of their behavior and reactions. The recent application of computer diagnostics to historical figures allows an objective differential diagnosis to be accomplished. Taking an example from clinical neurology, we analyzed the earliest reported cases of Devic’s disease (neuromyelitis optica) that commonly affects the optic nerve and spinal cord and was previously often confused with multiple sclerosis. We conclude that in most identified cases the software concurred with the contemporary physicians’ interpretation, but some claimed cases either had insufficient data to provide a diagnosis or other possible diagnoses were suggested that had not been considered. Computational methods may, therefore, help historians to diagnose the ailments of historical figures with greater objectivity.     

The Nautical Archaeology of Puerto Rico

The waters of Puerto Rico harbour the remains of thousands of years of human occupation. The island played a key role in the first decades of European exploration of the New World, and its coasts and estuaries have preserved an extensive record of the island's maritime history, before and after the arrival of the Europeans. The objective of this project is to study Puerto Rico's seafaring history through the investigation of its submerged cultural heritage, with a particular focus on the history of European shipbuilding. In 2008 the authors started with survey on the north coast.
© 2009 The Authors     

Chemical and mineralogical characterization of historic mortars from the Santa Eulalia de Bóveda temple,NW Spain

Bulk samples of mortars from the Santa Eulalia de Bóveda temple (NW Spain) have been characterized from a chemical and mineralogical point of view, with the aims of contributing technological and provenance inferences, and evaluating possible correlations with the various identified stages along historical periods of construction.     

Full-Scale Shaking Table Tests on a Substandard RC Building Repaired and Strengthened with Post-Tensioned Metal Straps

The effectiveness of a novel Post-Tensioned Metal Strapping (PTMS) technique at enhancing the seismic behavior of a substandard RC building was investigated through full-scale, shake-table tests during the EU-funded project BANDIT. The building had inadequate reinforcement detailing in columns and joints to replicate old construction practices. After the bare building was initially damaged significantly, it was repaired and strengthened with PTMS to perform additional seismic tests. The PTMS technique improved considerably the seismic performance of the tested building. While the bare building experienced critical damage at an earthquake of PGA = 0.15 g, the PTMS-strengthened building sustained a PGA = 0.35 g earthquake without compromising stability.     

Mobilité Universitaire et Circulation Internationale des Idées. Le Cas du Brésil Contemporain

In Brazil, considerable changes have affected the fields of social sciences and humanities. The growing number of advanced students studying abroad after the 1960s and later the creation of PhD programs have turned the road to national political power into an international one. As a result, academic fields have evolved and Elite formation has largely been transformed. Using these elements as a contextual framework, this article seeks to analyze the recent dynamics of the debate over the political and economic evolution of Brazil.