Papers by Rodrigo Mundaca Gómez
Online Journal of Rural Nursing and Health Care, 2021
High dose (0.3%) of dietary histamine can cause adverse effects on growth performance, innate imm... more High dose (0.3%) of dietary histamine can cause adverse effects on growth performance, innate immunity, and gut health in juvenile grouper (Epinephelus coioides). In the present study, three autochthonous probiotics (Bacillus pumilus SE5, Psychrobacter sp. SE6, and Bacillus clausii DE5) were supplemented separately to diets containing 0.3% of histamine and their effects on growth performance, innate immunity, and gut health of grouper (E. coioides) were evaluated in a 56day feeding trial. The results showed considerable increase in weight gain, specific growth rate, hepatosomatic index, and decreased feed conversion rate in groupers fed with probiotic-supplemented diets. Supplementation of autochthonous probiotics has improved antioxidant capacity and innate immunity of E. coioides by measuring correlative parameters, such as total antioxidant capacity, superoxide dismutase activity, malondialdehyde content, and so on. Additionally, dietary probiotics have significantly reduced the levels of serum interleukin-1β (at days 28 and 56), fatty acid-binding protein 2, and intestinal trefoil factor (at day 28), and promoted intestinal integrity following remarkably increased muscle thickness and mucosal fold height at day 56, especially in grouper fed with B. pumilus SE5 containing diet (P < 0.05). On day 56, the gut microbial composition of E. coioides was positively shaped by autochthonous probiotics, the relative abundance of potentially pathogenic Photobacterium decreased while beneficial Lactobacillus increased in fish fed with probiotic strains, especially with B. pumilus SE5 and B. clausii DE5. These results suggest that among the three autochthonous probiotic strains tested, B. pumilus SE5 is showing better efficiency in alleviating the adverse effects of (high levels) dietary histamine by decreasing the expression of inflammatory markers and by improving the growth, innate immunity, and gut health of juvenile grouper E. coioides.
Comunicación y Sociedad, 2021
Durante los últimos quince años las industrias audiovisuales de todo el mundo han registrado prof... more Durante los últimos quince años las industrias audiovisuales de todo el mundo han registrado profundas transformaciones (Birkinbine et al., 2017; Hesmondhalgh, 2018; Miège, 2016). Más específicamente, en el ámbito digital hemos asistido a la aparición y expansión internacional de servicios audiovisuales de compañías de matriz estadounidense, cuyas pulsiones de conquista mundial las han llevado a desarrollar estrategias transnacionales de penetración de mercados, aprovechándose de la arquitectura global de la red de redes. A excepción de China, que prohíbe su entrada y ha desarrollado sus propios servicios, el resto del mundo ha visto cómo operadores estadounidenses han comenzado a actuar en sus mercados y a captar clientes. Los servicios audiovisuales que se ofrecen bajo demanda, mediados por suscripción (svod), lideran este proceso en la actualidad. El número de suscriptores de svod en todo el mundo ascendió a 642 millones en 2019-en comparación con los 508.44 millones registrados un año
Journal of Chemical & Engineering Data, 2008
This work provides experimental phase equilibrium data of the pseudo-ternary system CO 2 + ethano... more This work provides experimental phase equilibrium data of the pseudo-ternary system CO 2 + ethanol + fish oil, a system of interest in pharmaceutical and food-industry applications such as the enzymatic production of fatty acid ethyl esters at mild, non-oxidative conditions. Measurements were carried out in a high-pressure variable-volume view cell in the temperature range 323.15-343.15 K and at pressures from 10 to 30 MPa. The Peng-Robinson equation of state was used to satisfactorily correlate experimental data.
Biomedical Microdevices, 2006
Monitoring of ischemia in living tissues is a field of increasing interest in many clinical setti... more Monitoring of ischemia in living tissues is a field of increasing interest in many clinical settings. In this work we report for the first time anywhere the development of needleshaped, minimally-invasive impedance probes based on silicon carbide (SiC) substrates. An in-vitro comparison of these new devices with Si-based impedance probes demonstrates that their effective operation range extends up to the 100 kHz range, thus allowing a wide-spectrum multi-frequency analysis of impedance modulus and phase angle. Furthermore, we show that, when applied to in-vivo settings, this kind of analysis yields to an accurate monitoring of ischemia, while making possible the application of more robust mathematical methods for the study of impedance in living tissues.
Revista Interuniversitaria de Formación del Profesorado. Continuación de la antigua Revista de Escuelas Normales
Los Objetivos de Desarrollo Sostenible (ODS) y su agenda educativa 2030, representa los debates y... more Los Objetivos de Desarrollo Sostenible (ODS) y su agenda educativa 2030, representa los debates y acuerdos que se dan a nivel mundial sobre los compromisos de la humanidad para con nuestra casa común “el planeta”. En ese contexto, la formación del profesorado se les reconoce como pilar fundamental para alcanzar una educación de calidad, inclusiva y sostenible para todos, desde un enfoque humanista de la educación y el desarrollo. El foco investigativo se centró en saber cómo se están alineando los proyectos de Formación Inicial Docente (FID) en Chile con relación a las temáticas educativas ODS, para lo cual se abordan tres líneas documentales: la política institucional (PEI, Modelo Educativo); Identidad profesional (Perfiles de egreso); y los planes y programas de estudio. Se sigue procedimientos metodológicos y técnicos propios del paradigma cualitativo basado en la teoría fundamentada. Los resultados muestran, que las temáticas educativas ODS forman parte de las narrativas institu...
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Papers by Rodrigo Mundaca Gómez