Guidelines for the improvement of habitat for a indigenous community of Tucumán : intervention in a process of historical reconstruction, cultural and social

El objetivo del proyecto es formular lineamientos base para propuestas de mejoramiento del hábitat en La Angostura en el Valle del Tafí, favoreciendo su actual proceso de desarrollo y fortalecimiento comunitario como pueblo indígena. La Comunidad se encuentra en un proceso de construcción y reafirmación de su identidad como pueblo originario, lo que involucra reivindicaciones ligadas a la preservación de su hábitat, la reconstrucción de su historia, su desarrollo económico, social y el fortalecimiento comunitario en un momento de ocupación descontrolada del territorio por sectores privados para explotar turísticamente la zona; dejando a la comunidad fuera de los procesos de explotación y producción, usando los recursos del área y condenándola a un estado de dominación y dependencia. El 22 de Mayo de 2006 la Convención Constituyente para la reforma de la Constitución de Tucumán incorporó la propuesta de 21 comunidades indígenas que reconoce los derechos como Pueblos Originarios. La Comunidad cuenta con personería jurídica desde el año 2004 y está organizada de acuerdo a las pautas de los pueblos originarios. Un equipo interdisciplinario integrado por profesionales y estudiantes de Arquitectura, Medicina, Historia, Psicología y Psicología Social estudia las condiciones concretas de existencia y el proceso histórico de la comunidad, la migración de jóvenes que no encuentran fuentes de trabajo o estudio, los adultos y viejos que regresan al valle desde la Capital de la Provincia o del País y vuelcan las influencias recibidas, instalando una idea de progreso situada fuera de su pago.The project aims to develop guidelines for proposals for habitat improvement in Angostura in the Valley of Tafi, encouraging their ongoing development and strengthening community and indigenous people. The Community is in the process of construction and reaffirmation of their original identity as a people, which involves claims related to the preservation of their habitat, the reconstruction of their history, their economic, social and community building at a time of occupation out of land for private sector to exploit the tourist area, leaving the community outside the processes of exploitation and production, using the resources of the area and sentenced to a state of domination and dependence. On May 22, 2006 the Constitutional Convention to reform the Constitution of Tucumán, 21 incorporated a proposal that recognizes indigenous rights as Indigenous Peoples. The Community has legal personality since 2004 and is organized according to patterns of native peoples. An interdisciplinary team composed of professionals and students of Architecture, Medicine, History, Psychology and Social Psychology studies the conditions of existence and the historical process of the community, the migration of young people who can not find jobs or study, adults and old returning to the valley from the capital of the province or the country and turn influences received, installing a sense of achievement outside of your payment.Fil: Racedo, Josefina. Universidad Nacional de TucumánFil: Beno, Alvaro. Universidad Nacional de TucumánFil: Boldrini, Paula. Universidad Nacional de Tucumá

A non-damaging chemical amination protocol for poly(ethylene terephthalate)-application to the design of functionalized compliant vascular grafts

Bioengineering approaches have been intensively applied to create small diameter vascular grafts using artificial materials. However, a fully successful, high performing and anti-thrombogenic structure has not been achieved yet. In this study, we present the first step of a process aiming at biofunctionalizing previously designed compliant polyethylene terephthalate (PET) scaffolds (Moreno et al., 2011). The main challenge of such a surface modification is to prevent the bulk polymer from any damage, so that it preserves the mechanical properties that the structures have been designed for. In that endeavor, an aminated long-chain polymer (polyvinylamine, PVAm) was used as an aminolysis reagent to get amine (-NH2) moieties only on the very surface of PET. Different reaction conditions were assayed, leading to a large range of amino group densities associated with slight variations of the planar tensile properties. These results were in stark contrast with those generated with a common small diamine substrate (ethylenediamine, EtDA), as the latter yielded a strong degradation of the mechanical properties for comparable amine densities. Tubular mechanical assays were then carried out on PVAm-functionalized PET scaffolds. The latter showed a compliance match with arteries under the chosen reaction conditions, as initially observed for pristine PET tubular scaffolds.Peer reviewed: YesNRC publication: Ye