Assessment of climate change vulnerability of farm households in Pyapon District, a delta region in Myanmar

Sea level rise causes saltwater intrusion and flooding of agricultural land and ultimately threatens the livelihoods of farm households in the delta region of Myanmar. Empirical research on the effects of climate change on the delta's agriculture and an assessment of the vulnerability are becoming necessary. This study explores the vulnerability of farm households to sea level rise using two methods: the Livelihood Vulnerability Index (LVI), which is comprised of 37 indicators, and the Socioeconomic Vulnerability Index (SeVI), which contains 35 indicators. Interviews with 178 farmers were conducted in Bogale, Pyapon and Dedaye Townships in Pyapon District. In addition, 7 focus group discussions were performed, with at least 2 discussions in each Township. Both methods identify Bogale to be the most vulnerable Township, followed by Dedaye and Pyapon Townships. Following the LVI approach, Bogale Township has the highest sensitivity to climate effects and the highest exposure to natural hazards, but also a higher adaptive capacity than the other townships. In contrast using the SeVI approach, Bogale was found to have the highest sensitivity and exposure to natural hazards but the lowest adaptive capacity score. The study found that the climate change adaptation measures taken by the farmers are important to limit vulnerable to the adverse effects of climate change and thus promotion of the adaptive capacity of farmers is important for the delta region of Myanmar

Nematic Films and Radially Anisotropic Delaunay Surfaces

We develop a theory of axisymmetric surfaces minimizing a combination of surface tension and nematic elastic energies which may be suitable for describing simple film and bubble shapes. As a function of the elastic constant and the applied tension on the bubbles, we find the analogues of the unduloid, sphere, and nodoid in addition to other new surfaces.Comment: 15 pages, 18 figure

Actividad antioxidante de extractos metanólicos de attalea butyracea

Se extrajeron pigmentos de Attalea butyracea y se evaluó su contenido de fenoles, antocianinas y su capacidad atrapadora de los radicales libres DPPH•, encontrándose un Ic50 de 141.4 mg/l y una constante cinética k de 1.0512E-05 (g/L)-1s-1, en la evaluación de la capacidad atrapadora de los radicales superóxido (CARS) se encontró un Ic50 de 76 mg/L y la capacidad de inhibir la oxidación del β-caroteno fue pobre. Como patrones de referencia se utilizó BHA para DPPH• y β-caroteno, con un Ic50 de 5.6 mg/L y una k de 3.0372E-04 (g/L)-1s-1 y para CARS catequina, encontrándose un Ic50 de 72.3 mg/L

Actividad antioxidante de extractos metanólicos de attalea butyracea

Se extrajeron pigmentos de Attalea butyracea y se evaluó su contenido de fenoles, antocianinas y su capacidad atrapadora de los radicales libres DPPH•, encontrándose un Ic50 de 141.4 mg/l y una constante cinética k de 1.0512E-05 (g/L)-1s-1, en la evaluación de la capacidad atrapadora de los radicales superóxido (CARS) se encontró un Ic50 de 76 mg/L y la capacidad de inhibir la oxidación del β-caroteno fue pobre. Como patrones de referencia se utilizó BHA para DPPH• y β-caroteno, con un Ic50 de 5.6 mg/L y una k de 3.0372E-04 (g/L)-1s-1 y para CARS catequina, encontrándose un Ic50 de 72.3 mg/L

A Bayesian Calibration Framework for EDGES

We develop a Bayesian model that jointly constrains receiver calibration, foregrounds and cosmic 21cm signal for the EDGES global 21\,cm experiment. This model simultaneously describes calibration data taken in the lab along with sky-data taken with the EDGES low-band antenna. We apply our model to the same data (both sky and calibration) used to report evidence for the first star formation in 2018. We find that receiver calibration does not contribute a significant uncertainty to the inferred cosmic signal (<1%), though our joint model is able to more robustly estimate the cosmic signal for foreground models that are otherwise too inflexible to describe the sky data. We identify the presence of a significant systematic in the calibration data, which is largely avoided in our analysis, but must be examined more closely in future work. Our likelihood provides a foundation for future analyses in which other instrumental systematics, such as beam corrections and reflection parameters, may be added in a modular manner.Comment: 18 pages + 3 for appendices. 13 figures. Accepted to MNRA

La micro, pequeña y mediana empresa (MiPyME) exportadora del sector textil confección en el Valle de Aburrá: hallazgos a partir de análisis de casos

Este trabajo realiza una aproximación a las empresas micro, pequeñas y medianas -MiPyMEs- del sector textil-confección, teniendo en cuenta las políticas e instituciones de apoyo y su experiencia internacional. La metodología empleada fue el análisis de casos, aplicando un cuestionario a 23 empresas del Valle de Aburra; el desconocimiento y la desarticulación de los empresarios sobresalió como principal respuesta en la aplicación de los cuestionarios

La micro, pequeña y mediana empresa (MiPyME) exportadora del sector textil confección en el Valle de Aburrá: hallazgos a partir de análisis de casos

This article makes an approach to the small and médium sized enterprises (SME’s) of the textile and apparel sector, taking into account the policies and institutions that supports them, as well as their international experience. The methodology used was case studies, for which a questionnaire was applied to 23 companies of the Valle de Aburra; the lack of knowledge and articulation of the businessmen appeared as the main element..Este trabajo realiza una aproximación a las empresas micro, pequeñas y medianas -MiPyMEs- del sector textil-confección, teniendo en cuenta las políticas e instituciones de apoyo y su experiencia internacional. La metodología empleada fue el análisis de casos, aplicando un cuestionario a 23 empresas del Valle de Aburra; el desconocimiento y la desarticulación de los empresarios sobresalió como principal respuesta en la aplicación de los cuestionarios