COVID-19 in Chihuahua,Mexico: Assessing its spatial behaviour through the inverse distance weighted interpolation technique

This study focused on the spatial evolution of COVID-19 in the state of Chihuahua, Mexico. Data were retrieved from governmental databases and analyzed by means of GIS, applying the inverse distance weighted (IDW) method. The period of December 2019 through November 2021 was split into eight seasons. The root mean square error (RMSE) was used to assess the reliability of the interpolations, showing acceptable values (RSME < 25). During the period, the municipalities of Juarez and Chihuahua reached the highest number of confirmed cases and deaths, Juarez being the main hotspot of contagion (37.2% of confirmed cases; 46.9% of deaths). Four waves of contagion were identified during the evaluated period, with Fall 2020 being the strongest season. Since Fall 2020, the spread of the disease was more often observed in municipalities with the highest human mobility. Although the spread of COVID-19 decreased after Spring 2021, in Fall 2021 records indicated a continuous increase in cases in the state. That could be due to a relaxation of the implementation of sanitary measures, as well as to the propagation of novel COVID-19 variants having an elevated infectious level. Geospatial techniques allowed for an understanding of the spatial spread of COVID-19 and could be useful for its control.     

First record of the ichthyodectiform fish Xiphactinus (Teleostei) from Patagonia,Argentina

Abstract

We report the first record of the genus Xiphactinus from southern South America. The recovered fossil material consists of an associated maxilla and abdominal vertebra, probably derived from latest Maastrichtian marine deposits of the Salamanca Formation in Chubut Province, Argentina. Xiphactinus has been widely reported from Late Cretaceous strata throughout the Northern Hemisphere, although to date, equivalent Southern Hemisphere occurrences include only a single specimen from Venezuela. Our new discovery thus indicates that Xiphactinus had a much more cosmopolitan distribution, encompassing the southern paleolatitudinal extremities of South America during the terminal Cretaceous.

Julieta J. De Pasqua [julietadepasqua@gmail.com], Laboratorio de Anatomía Comparada y Evolución de los Vertebrados, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’, Av. Ángel Gallardo, 470, C1405DJR, Buenos Aires, Argentina;

Federico L. Agnolin [fedeagnolin@yahoo.com.ar], Laboratorio de Anatomía Comparada y Evolución de los Vertebrados, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’, Av. Ángel Gallardo, 470, C1405DJR, Buenos Aires, Argentina. CONICET; Fundación de Historia Natural ‘Félix de Azara’, Departamento de Ciencias Naturales y Antropología, Universidad Maimónides; Hidalgo 775 piso 7, C1405BDB, Buenos Aires, Argentina;

Sergio Bogan [sergiobogan@yahoo.com.ar], Fundación de Historia Natural ‘Félix de Azara’, Departamento de Ciencias Naturales y Antropología, Universidad Maimónides; Hidalgo 775 piso 7, C1405BDB, Buenos Aires, Argentina.     

Russia,China, and the universalism of modernity: the “Account of the Reforms of Peter the Great” by Kang Youwei

ABSTRACT

This paper analyzes a short essay by Kang Youwei (1858–1927) – one of the intellectual and political protagonists of late imperial and early Republican China. In it, he interpreted the historical experience of Russian modernization under Peter the Great (1672–1725) and used it as a “success story” for the renewal of Chinese monarchical institutions. It was written in 1898 and presented to the Manchu throne under the title “Account of the Reforms of Peter the Great”, and for our purposes will be the departing point for a “global intellectual circuit” through which the following questions will be addressed: Why was seventeenth and eighteenth century Russia considered as a model for China by the author? How did he manage to adapt the historical experience of Russia into a social and political conceptual framework for China? What was Kang’s historiographical method, and what kind of philosophy of history framed his reflections? What does this short essay tell us about Kang’s view on “Westernization”, on the concept of “modernity” itself, and on its use for historiographical purposes?     

The landscape of Metztitlan,Mexico: Power and control in a sixteenth century Spanish administrative painting

ABSTRACT

The concept of landscape has been studied mostly as the view of a space with particular interest in its aesthetics, originating at the turn of the sixteenth century. However, I argue that in fourteenth century northern Europe, the concept was focused on polity rather than aesthetics. This article examines this lesser-known tradition by analysing the painting of Metztitlan, a sixteenth century town in Mexico, and arguing, first, that unlike all the other representations in the Relaciones Geográficas to which it belongs, it is the only landscape, and second, that this painting is associated with an administrative procedure common in Spain to gain control over imperial lands. I review European practices regarding the representation of towns under the Spanish Crown. Then, I present the results of the fieldwork carried out to locate several heights which probably served as vantage points to paint the landscape. Based on this research, I analyse the intentions of the painter to argue that it should be considered within the same tradition as the paintings made in Spain by Flemish painter Anton van de Wyngaerde, as part of the Spanish Empire's Germanic tradition of describing places with the intention of exerting control over them.     

Beached swords from Marano Lagoon (northern Adriatic) reveal ancient land–sea connections and recent coastal evolution

Depositional and erosional processes, subsidence and sea-level changes have strongly modified the coastal landscape of northern Adriatic lagoons. Such rapid transformations have induced significant consequences on human settlements and, thus, on the archaeological visibility of the area, still largely unexplored. We present here six metal swords fortuitously retrieved by fishermen over the last decades in front of the barrier islands of Marano Lagoon (north-eastern Italy). Multi-analytical analyses carried out on the artefacts (X-ray radiography and computed micro-tomography, radiocarbon dating and typo-chronology) combined with the study of the coastal paleo-environment (mainly based on historical cartography and remote sensing) allowed the items’ main features to be defined, and highlighted both the historical importance of the area and the significant morphological changes that have occurred there over the last millennium. Data presented indicate that Marano Lagoon was a major hub in the northern Adriatic in the Late Middle Ages, during the crucial period of the Crusades, and in Early Modern times, connecting inland Europe with the Mediterranean Sea. Moreover, the research highlights the onset of coastal erosion that occurred in the last century after a phase of relatively geomorphic stability, possibly deriving from the intensification of human impact and climate change.