974 research outputs found

    Moral Techniques. Forensic Anthropology and Its Artifacts for Doing Good

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    In many of its applications forensic anthropology is a singular discipline, midway between a bare techno-scientific exercise and a militant involvement in overcoming situations marked by human rights violations. Today, riding on an intense and transnational wave of humanitarian sensitivity, forensic anthropology has acquired a significant scientific, moral and media status, and has become a front line scientific-technical practice in the human rights field at the planetary level. This text, which analyzes some of the artifacts with which forensic anthropology represents and works on its object, aims to understand this discipline through the concept of moral technique, which, in my understanding, captures the particular tensions of this form of working for good.En muchas de sus aplicaciones, la antropología forense es una disciplina singular, a medio camino entre el ejercicio tecno-científico desnudo y la implicación militante en la superación de situaciones marcadas por la vulneración de los derechos humanos. Hoy, encabalgada a una intensa y transnacional ola de sensibilidad humanitaria, la antropología forense ha ganado un importante protagonismo mediático, científico y moral, convirtiéndose en una práctica tecno-científica de primera línea en el campo de los derechos humanos, y ello a nivel planetario. El texto, analizando algunos artefactos con los que la antropología forense representa su objeto y lo trabaja, propone entender esta disciplina a través del concepto de técnica moral, que recoge, entiendo, las particulares tensiones de esta forma de trabajar para el bien

    Tiene [la] palabra la víctima pura [?]. El vacío social, el testimonio y la desesperación del investigador ante el sufrimiento sin forma ni lenguaje

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    A partir de una revisión de propuestas pasadas sobre la vida social en zonas alejadas de los sentidos normativos sobre la vida social ordinaria, el texto traza un recorrido que pasa por las tensiones entre representación y realidad, el testimonio y la víctima. En el límite, propone una figura teórica:?la víctima pura, una suerte de doliente sin voz y plantea algunas dudas sobre las posibilidades reales de hacer investigación social sobre ella. Palabras clave: Víctimas, testimonio, representación, vacío social.From a revision of past proposals about life in distant areas from the normative senses about everyday social life, the text traces a way from the tension between representation and reality, the testimony and the victim. At the limit suggests a theoretical figure: the pure victim, a kind of mourner without voice. It lays out out some questions about the real possibilities of making social investigation about her. Key words: Victims, Testimony, Representation, Social Vacuum

    Outside the borders of the state, abandonment. On the new forms of disappearance

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    In this article I propose an expanded definition of the categories of “disappearance” and “disappeared” with which to address situations marked by abandonment. In the first movement, I provide a critical description of the scientific literature available about disappearance in several fields, in particular legal and political sociology. Both have gradually constructed an interpretation that, while legally effective, sociologically sensitive, and socially successful, currently find themselves overwhelmed. The second movement confirms that the dominant meaning of disappearance and disappeared has been overwhelmed, and it addresses how that overwhelming affects three of their characteristics: the timeframes of reference for both categories (the past and memory); the anthropological assumptions that underpin the two (the bad death and the (im)possibility of its conventional management); and the normative social frameworks that both take as “a given” (the state and citizenship, and the forms of political agency associated with them). Finally, the third movement deals with different experiences of field research related to very open uses of the idea of disappearance, to gather different efforts of theoretical problematization that currently, and in various fields of social science research, turn disappearance and disappeared into tools for analyzing social forms of abandonment.Projects “Discounted Lives. Shelters to inhabit social disappearance” (PID2020-113183GB-I00, 2021–2025) and “Disappearances. Study in transnational perspective of a category to manage, inhabit and analyze social catastrophe and loss” (CSO 2015-66318-P, 2016–2020), funded by the State Research Agency, Ministry of Science and Innovation, Spain

    CD8α2 CD11b+ Dendritic Cells Present Exogenous Virus-like Particles to CD8+ T Cells and Subsequently Express CD8α and CD205 Molecules

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    Recombinant porcine parvovirus virus-like particles (PPV-VLPs) are particulate exogenous antigens that induce a strong, specific cytotoxic T lymphocyte (CTL) response in the absence of adjuvant. In the present report, we demonstrate in vivo that dendritic cells (DCs) present PPV-VLPs to CD8+ T cells after intracellular processing. PPV-VLPs are captured by DCs with a high efficacy, which results in the delivery of these exogenous antigens to 50% of the whole spleen DC population. In vivo, a few hours after injection, PPV-VLPs are presented exclusively to CD8+ T cells by CD8α− DCs, whereas 15 hours later they are presented mainly by CD8α+ DCs. After PPV-VLPs processing, a fraction of CD11b+ DCs undergo phenotypic changes, i.e., the up-regulation of CD8α and CD205 and the loss of CD4 molecules on their surface. The failure to detect mRNA coding for CD8α in CD11b+ DCs suggests that CD8α expression by these cells is not due to de novo synthesis. In recombination-activating gene knockout mice (Rag−/−), CD11b+ DCs did not express CD8α and PPV-VLPs presentation by CD8α+ DCs was severely diminished. These results indicate that both CD8α− and CD8α+ DCs play an important role in the induction of CTL responses by exogenous antigens, such as VLP

    Sistema de seguimiento de satélites

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    [Resumen] El objeto de este proyecto es la implementación de un sistema de seguimiento de satélites, basado en la plataforma Arduino, que consistirá en el control de orientación de las antenas conforme a la posición actual del satéliteTraballo fin de grao (UDC.EUP). Enxeñaría electrónica industrial e automática. Curso 2018/201

    Salviniales from the Late Cretaceous of the Golfo San Jorge Basin

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    The freshwater ferns (Salviniales) are well represented in the Maastrichtian deposits of Cerro de los Fragmentos in the headwaters of the Río Chico, Golfo San Jorge Basin. The fossil material of Salviniaceae includes complete megaspore apparatuses with attached microspore massulae and dispersed mega- spores, float systems and microspore massulae of Azolla. The new species Azolla colhuehuapensis displays distinctive morphological characters including relative small megaspore apparatuses with easily de- tached floats and usually attached eglochidiate massulae. The Marsileaceae are represented by the megaspore Molaspora lobata, microspores of Crybelosporites and vegetative remains of Marsileaceae- phyllum sp. The assemblage also includes zygospores of the green filamentous algae Zygnemataceae, spores of Marchantiophyta and Monilophyta (Schizaeales), megaspores of Isoetalean affinity and Palm- type angiosperm pollen grains. All these organic microfossils and the associated palynomorphs indi- cate the presence of a freshwater environment where abundant water ferns were developing and reproducing

    The Behavioral Implications of a Multi-Individual Bonebed of a Small Theropod Dinosaur

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    Background: Central Patagonia, Argentina, preserves an abundant and rich fossil record. Among vertebrate fossils from the Upper Cretaceous Bajo Barreal Formation of Patagonia, five individuals of the small, non-avian theropod dinosaur Aniksosaurus darwini were recovered. Group behavior is an important aspect of dinosaur paleoecology, but it is not welldocumented and is poorly understood among non-avian Theropoda. Methods/Principal Findings: The taphonomic association of individuals from the Bajo Barreal Formation and aspects of their bone histology suggest gregarious behavior for Aniksosaurus, during at least a portion of the life history of this species. Histology indicates that the specimens were juvenile to sub-adult individuals. In addition, morphological differences between individuals, particularly proportions of the appendicular bones, are probably related to body-size dimorphism rather than ontogenetic stage. Conclusions/Significance: Gregarious behaviour may have conferred a selective advantage on Aniksosaurus individuals, contributing to their successful exploitation of the Cretaceous paleoenvironment preserved in the Bajo Barreal Formation. The monospecific assemblage of Aniksosaurus specimens constitutes only the second body fossil association of small, coelurosaurian theropods in South America and adds valuable information about the paleoecologies of non-avian theropod dinosaurs, particularly in the early Late Cretaceous of Patagonia.Fil: Ibiricu, Lucio Manuel. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Nacional Patagonico;Fil: Martinez, Ruben Dario. Universidad Nacional de la Patagonia "san Juan Bosco";Fil: Casal, Gabriel. Universidad Nacional de la Patagonia "san Juan Bosco";Fil: Cerda, Ignacio Alejandro. Universidad Nacional de Rio Negro. Sede Alto Valle. Instituto de Investigaciones En Paleobiologia y Geologia

    Nota del editor. La continuidad de lo heredado (Para Alfonso Pérez-Agote)

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    Recordatorio de la figura de Alfonso Pérez-Agote; Rememberance of the figure of Alfonso Pérez-Agot

    A reappraisal of Notohypshilophodon comodorensis (Ornithischia: Ornithopoda) from the Late Cretaceous of Patagonia, Argentina

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    The Bajo Barreal Formation (Cenomanian, Late Cretaceous; central Patagonia, Argentina) preserves an important and rich fossil record. Among the dinosaurs described, a small ornithischian, Notohypsilophon comodorensis, was named in the 1990s. This small-bodied dinosaur, the most complete representative of the group discovered in that formation, was described as a ?hypsilophodontid? ornithopod based on close morphological affinities with other members of that group, which is currently regarded as paraphyletic. Within this context, we present a restudy of Notohypsilophodon. This dinosaur is considered a basal ornithopod, probably more basal than Gasparinisaura. Likewise, this analysis emends and provides additional unique anatomical characters that support its taxonomic validity and position. On the basis of weak evidence, Notohypsilophodon might share the presence of gastroliths with other basal ornithopods (Gasparinisaura and Haya), which could suggest a specific behavior in response to its food ingestion. Finally, this study increases our knowledge of the evolutionary dynamics of South American Cretaceous ornithopods, and therefore broadens our knowledge of the early Late Cretaceous continental vertebrate assemblages of central Patagonia and of the Southern Hemisphere in general.Fil: Ibiricu, Lucio Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Martínez, Rubén D.. Universidad Nacional de la Patagonia. Sede Esquel; ArgentinaFil: Luna, Marcelo. Universidad Nacional de la Patagonia. Sede Esquel; ArgentinaFil: Casal, Gabriel A.. Universidad Nacional de la Patagonia. Sede Esquel; Argentin
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