Around the Origin of the Images in the Veintena Section of the "Primeros Memoriales" by fray Bernardino de Sahagún

By examining the pictorial content of the veintena section of the Primeros Memoriales, the manusctipt compiled by fray Bernardino de Sahagún, I identify new pieces of evidence on the origin of these illustrations and their authors. A carefull analisis of this material suggests that it is strongly embedded in the pre-Hispanic tradition and that it is doubtful that their iconographic sources originated in Tepeopolco, as it is widely believed.

Dogs in the paradise: The influence of the cynical philosophy in the construction of the myth of the good savage

This paper studies the influence of cynic philosophy in the construction of the myth of the good savage. In the first part it studies the importance of cynicism in the XVI century and how the cynic influence of Erasmus, More and Montaigne was fundamental to the way that Europe approached the American indigenous. In the second part it studies the cynic motives that could have influenced in the construction of the myth of the good savage.

Gravity collapse structures in the Central Precordillera fold-andthrust belt, Argentina

Several landforms found in the fold-and-thrust belt area of Central Precordillera, Pre-Andes of Argentina, which were often associated with tectonic efforts, are in fact related to non-tectonic processes or gravitational superficial structures. These second-order structures, interpreted as gravitational collapse structures, have developed in the western flank of sierras de La Dehesa and Talacasto. These include rock-slides, rock falls, wrinkle folds, slip sheets and flaps, among others; which together constitute a monoclinal fold dipping between 30º and 60º to the west. Gravity collapse structures are parallel to the regional strike of the Sierra de la Dehesa and are placed in Ordovician limestones and dolomites. Their sloping towards the west, the presence of bed planes, fractures and joints; and the lithology (limestone interbedded with incompetent argillaceous banks) would have favored their occurrence. Movement of the detached structures has been controlled by lithology characteristics, as well as by bedding and joints. Detachment and initial transport of gravity collapse structures and rockslides in the western flank of the Sierra de la Dehesa were tightly controlled by three structural elements: 1) sliding surfaces developed on parallel bedded strata when dipping >30° in the slope direction; 2) Joint’s sets constitute lateral and transverse traction cracks which release extensional stresses and 3) Discontinuities fragmenting sliding surfaces.  Some other factors that could be characterized as local (lithology, structure and topography) and as regional (high seismic activity and possibly wetter conditions during the postglacial period) were determining in favoring the steady loss of the western mountain side in the easternmost foothills of Central Precordillera.

David Hume and contractualism

David Hume belonged to the consecuencialist philosophical tendency, in which is included utilitarianism. This tendency was opposed to the normativism philosophy, in which is enrolled contractualism. This article analyzes the critique made by David Hume, from the utilitarianism perspective, against contractualism. The major philosophers of contractualism are Thomas Hobbes, John Locke and Jean Jacques Rousseau. Hume implemented three arguments in opposition to them: 1) historic: the social contract does not have any practical testing. Therefore it could not be presented as the foundation of the state; 2) philosophical: it is not the duty, but the interest that moves men to seek the formation of the political authority; 3) social: in the consciousness of the people, there is no trace of the social contract.Utilitarianism was one of the philosophical tendencies that finished the theoretical hegemony that contractualism had during the XVII and the XVIII centuries. Nonetheless from the historical and social point of view, the liberalization movements in many parts of the world, at that time, were inspired by contractualism. It means that from the theoretical point of view, utilitarianism, certainly, stressed the empirical origins of the state but not the rational justification of the political Authority. Hume was unable to understand the normative force that contractualism owns, which inspires human action.

Salvajes y chichimecas: mitos de alteridad en las fuentes novohispanas

Llamamos mitos de alteridad a las creencias y el imaginario tradicionales que un pueblo proyecta en su visión etnocéntrica sobre otros pueblos. Siguiendo la propuesta de Roger Bartra, examinamos una serie de crónicas novohispanas para demostrar que los mitos de alteridad de origen europeo referentes al salvaje influyeron en las descripciones que nos han legado sobre los pueblos indígenas mesoamericanos conocidos como chichimecas. Apuntamos finalmente algunas reflexiones sobre el uso y alcance de dichos mitos de alteridad en relación con la expansión europea por América, y sobre la necesidad metodológica de someter a crítica bajo este prisma la información que nos ofrecen las fuentes disponibles, producidas, después de todo, en pleno proceso de aculturación colonial.

Diálogo con Europa, diálogo con el pasado. Antepasados y tradición entre la nobleza colonial nahua

En este trabajo presentamos un acercamiento a los modos de referirse al pasado en los testimonios dejados por los miembros de la nobleza colonial nahua. La lectura de las fuentes nos permite distinguir dos perspectivas –intelectual y pragmática– asociadas respectivamente con el proyecto de unir las tradiciones históricas indígena y europea y con la búsqueda de argumentos en la lucha por tierras y privilegios. El enfoque del artículo son los conceptos nahuas de «tradición» y «antepasados» (huehuetqueh), manifiestos en ambas perspectivas. Al analizar el vocabulario, retórica e iconografía intentamos entender el significado de estos conceptos dentro de la cultura nahua prehispánica y su modificación bajo las circunstancias coloniales, tanto como su papel en la continuación de la identidad nahua.

El color en los códices prehispánicos del México Central: identificación material, cualidad plástica y valor estético

Este artículo investiga algunos de los valores plásticos y estéticos que presidieron la selección y la preparación de las materias colorantes empleadas para iluminar los códices creados por los nahuas del México Central durante el Posclásico Tardío. Estos códices son interesantes porque análisis arqueométricos y exámenes codicológicos recientes han permitido conocer la materialidad de su capa pictórica, así como las características formales y el comportamiento de los colores en estas obras. Uno de los aportes trascendentales de estos estudios ha sido averiguar que la paleta cromática que sirvió para pintar los códices del México Central era principalmente de origen orgánico, lo que contrasta con la naturaleza de los pigmentos detectados en restos de pintura mural y en esculturas creadas por los nahuas que son sobre todo minerales. El objetivo de este artículo es reflexionar sobre las razones de esas diferencias y demostrar que el uso de los colorantes orgánicos en los códices respondía a un fin plástico específico que concordaba con el canon estético imperante en la sociedad náhuatl.

Calcaneus-navicular coalition associated to flatfoot in a child. A case report

Tarsal coalition (a congenital fibrous, cartilaginous or bony connection between two bones) often leads to a flatfoot deformity in children. Usually it presents with recurrent ankle sprains or insidious onset of a painful rigid flatfoot and movement limitation of midtarsal and subtalar joints. Clinical diagnosis is confirmed by X-rays, computed axial tomography and nuclear magnetic resonance. The anteater nose sign is caused by a tubular elongation of the anterior process of the calcaneus that approaches or overlaps the tarsal scaphoid (navicular) and resembles the nose of an anteater on a lateral foot or ankle radiograph. The treatment of this union is primarily symptomatic but if the pain persists must be surgical .