Una herramienta para la medicion de la aversion al riesgo, mediante la caracterizacion de las funciones de utilidad.

129 p.Esta memoria desarrolla una herramienta para la medicion de la adversion al riesgo, basada en la teoria de la utilidad esperada, expuesta por autores tales como Arrow (1965),Machina (1987)Cox y Sadiraj(2001). La idea fue desarrollar un instrumento automatico que genera mediante el analisis de modelos de regresion no lineales un reporte general que determine que forma funcional representa la actitud de las personas bajo condiciones de incertidumbre y por lo tanto refleje el grado de adversion al riesgo de cada Individuo

Caracterizacion de la madera de Acacia melanoxylon R. Br. propiedades, procesos y usos

149 p.El presente trabajo caracteriza la madera de Acacia melanoxylon R. Br. (Aromo australiano) a través de una exhaustiva revisión bibliográfica y un ensayo de propiedades físicas básicas de madera de esta especie, para dos procedencias de la Región de la Araucanía (Voipir y Los Guindos). Se recopilan antecedentes básicos acerca de la Morfología de la especie, área natural de distribución, crecimiento, desarrollo y perspectivas de la especie en el país. En cuanto a la madera se destacan aspectos relevantes en lo referido a características macroscópicas, microscópicas y químicas; propiedades físicas y químicas. También se abordan los procesos industriales y usos a los que puede ser sometida la especie, destacando que la madera de Aromo australiano puede ser sometida a procesos de foliado, aserrado y secado, sin ningún tipo de problemas. A partir del ensayo de propiedades físicas se evaluó la existencia de colapso. También se determinaron las densidades anhidra y básica para cada procedencia así como las contracciones tangencial, radial y volumétrica y los coeficientes de contracción lineal respectivos

Shunguhuan Yuyai: The Battle for Kichwa Language and Culture Revitalization in Ecuador as Thinking-Feeling and Performance

An indigenous language with more than one million speakers in Ecuador, Colombia, and Peru, Kichwa is one of the most spoken indigenous languages in South America and an official language in Ecuador. Unfortunately, Kichwa is experiencing a rapid loss among young generations, which is leading to growing discontent about the education system, community and self-identity crises, among other issues. Furthermore, the situation of Kichwa is one example of a widespread indigenous language loss taking place worldwide, and it exemplifies the disappearance of indigenous cultures. It has been predicted that, by the end of the XXI century, approximately half of 7000 World languages will be extinct (Austin and Sallabank 2014, 2). Some more pessimistic sources provide an extinction rate by the end of the century up to 90%. However, there are efforts being done to revitalize endangered indigenous languages globally and, although many programs are struggling in their efforts, there are successful examples of revitalization through these programs. The best studied examples include languages like Maori, Hawaiian, and Basque. The purpose of this project is to understand Kichwa language revitalization in comparative perspective with other language programs. Within this goal, this thesis addresses four main issues: The first will be to look at the growth and challenges faced by Kichwa revitalization movement. Then, the reasons and arguments that Kichwa revitalization activists provide for the undertaking of such task will be presented. This will be done with the purpose of drawing initial lessons from past and present failing projects attempting Kichwa revival. Lastly, the signs of hope for future and current revitalization projects from each interlocutor in my project will be presented and analyzed. With these goals in mind, I will present how Kichwa revitalization movements are operating in Ecuador and how these efforts influence the younger generation of speakers.Bachelor of Art

LAS 2000: Introduction to Latin American Studies

Q2S Enhancing Pedagogy stipends were used to support the formation of a Faculty Learning Community to develop a new course, LAS 2000. Five faculty members from the College of Arts and Letters and the College of Social and Behavioral Sciences collectively designed and produced an fully online, team taught semester course. LAS 2000 is an introductory course to Latin American Studies, a requirement in the LAS Minor Program. The course introduces students to the study of Latin America from various perspectives: Anthropology, Sociology, Geography, Literature, and Theater/Film, with the goal of fostering greater cross-cultural understanding of the region and enhancing diverse, global perspectives. The course is open to students of any major and has no prerequisites

Desarrollo e implementacion de un sistema integral para la seccion de orientacion medica y estadistica del consultorio Centro de Salud de San Fernando.

81 p.La Sección de Orientación Médica y Estadística requiere mejorar su sistema de atención y funcionamiento dentro del Consultorio Centro de Salud de San Fernando. Para este propósito se realizó el siguiente proyecto, el que luego de una evaluación del estado actual y de un análisis del sistema, entrega uno nuevo que integra las funciones allí desempeñadas. Con el objetivo de llevar a cabo de la mejor forma este trabajo, se utilizaron los modelos de: Ciclo de Vida Clásico para todo el proceso de desarrollo del software, y de construcción por Prototipos, como parte específica dentro de la etapa de análisis en el primer modelo mencionado. El desarrollo del proyecto implicó la creación de un equipo de trabajo compuesto por el desarrollador del sistema y los usuarios de éste, y una constante interacción con ellos, sobre todo en la etapa de análisis, dado que el modelo de Construcción por Prototipos requiere de constantes evaluaciones por parte de los futuros usuarios y facilita la labor de determinar los requerimientos iniciales o básicos para el sistema. Se utilizaron además modelos de diagramación como Diagrama de Flujo de Datos (D.F.D.) y el Modelo Entidad Relación (M.E.R.), para comprender de manera más gráfica los resultados obtenidos. El lenguaje utilizado en la construcción de prototipos y finalmente en el desarrollo del sistema propiamente tal es Visual Basic, Edición Empresarial, versión 5.0. La base de datos es desarrollada e implementada con Microsoft Access 97. En la actualidad, la Sección de Orientación Médica y Estadística no posee un sistema que integre sus funciones, por lo que el resultado de este proyecto origina un nuevo producto listo para su implementación dentro de esta institución. Las conclusiones se realizaron por objetivo específico, rigiéndose por los modelos aplicados y por observaciones de todas las personas involucradas en este proyecto. Las recomendaciones se entregarán a nivel general, basadas en los resultados del sistema y su futura implementación

Inducing a topological transition in graphene nanoribbon superlattices by external strain

Armchair graphene nanoribbons, when forming a superlattice, can be classified into different topological phases, with or without edge states. By means of tight-binding and classical molecular dynamics (MD) simulations, we studied the electronic and mechanical properties of some of these superlattices. MD shows that fracture in modulated superlattices is brittle, as for unmodulated ribbons, and occurs at the thinner regions, with staggered superlattices achieving a larger fracture strain than inline superlattices. We found a general mechanism to induce a topological transition with strain, related to the electronic properties of each segment of the superlattice, and by studying the sublattice polarization we were able to characterize the transition and the response of these states to the strain. For the cases studied in detail here, the topological transition occurred at ∼3-5% strain, well below the fracture strain. The topological states of the superlattice - if present - are robust to strain even close to fracture. The topological transition was characterized by means of the sublattice polarization of the states.Fil: Flores Gutierréz, Esteban. Universidad de Chile; ChileFil: Mella, José D.. Universidad de Chile; ChileFil: Aparicio, Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; ArgentinaFil: Gonzalez, Rafael I.. Universidad Mayor; Chile. Centro para el Desarrollo de la Nanociencia y la Nanotecnología; ChileFil: Parra, C.. Universidad Mayor; ChileFil: Bringa, Eduardo Marcial. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina. Universidad Mayor; ChileFil: Munoz, Francisco. Centro para el Desarrollo de la Nanociencia y la Nanotecnología; Chile. Universidad de Chile; Chil

Natural genetic diversity of nutritive value traits in the genus Cynodon

The Cynodon spp. collection maintained by United States Department of Agriculture National Plant Germplasm System (USDA-NPGS) has limited information on nutritive value (NV) traits. In this study, crude protein (CP), phosphorous concentration (P), in vitro digestible organic matter (IVDOM), and neutral detergent fiber (NDF) were determined to (i) estimate genetic parameters for NV, (ii) obtain genetic values for the whole population across two harvests, (iii) estimate genotype by harvest interaction (GHI) for NV traits, and (iv) select accessions exhibiting improved NV traits compared to ‘Tifton 850 . The experiment was setup as a row-column design with two replicates and augmented representation of controls: Tifton 85, ‘Jiggs’, and ‘Coastal’. The whole-population was harvested twice, and data were analyzed using linear mixed models with repeated measures. In addition, a selected population of 15 genotypes were evaluated across 11 harvests to determine the extent of GHI. Genetic parameters revealed the presence of significant genetic variability, indicating potential improvements for NV through breeding. Specifically, P and IVDOM presented large variation, while NDF had lower diversity but some accessions exhibited lower NDF than Tifton 85. Low GHI, except for IVDOM, indicated genotypic stability and potential for selecting improved accessions under fewer harvests. Breeding line 240, PI-316510, and PI-3166536 presented superior NV than Tifton 85

Development of mental health first aid guidelines for problem drinking: a Delphi expert consensus study in Argentina and Chile

BACKGROUND: Among all psychoactive substances, alcohol consumption presents the most significant public health problem and is a leading risk factor for overall disease burden in Latin America. However, most people who meet criteria for a substance use disorder do not receive treatment in primary or secondary care sources. Community members can play a role in helping people to seek help as they are likely to encounter people experiencing problem drinking and recognize the signs. However, many do not have adequate mental health first aid knowledge or skills to provide help. We aimed to culturally adapt the existing English-language mental health first aid guidelines for helping someone with problem drinking for Argentina and Chile. METHODS: The Delphi consensus method was used to determine the importance of helping actions translated from the English-language guidelines and to add new actions suggested by expert panellists. The importance of each statement was rated by two expert panels. Panel one included people with lived experience (either their own or as a support person, n = 23) recruited in Argentina and panel two included health professionals (n = 31) recruited in Argentina and Chile. RESULTS: Overall, 165 helping actions were endorsed by panellists across two consecutive survey rounds. Endorsed items included 132 of the 182 items translated into Spanish from the English-language guidelines and 33 of the 61 new items generated from panellists' comments in the first survey round. CONCLUSIONS: While there were some similarities in recommended helping actions between English-speaking countries, and Argentina and Chile, key differences were seen in attitudes to low-risk drinking. While there was a relatively high level of agreement between health professionals and people with lived experience, some divergence of opinion was seen, particularly in the area of commitment to recovery as a condition for help. Future research should explore the implementation of the guidelines