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Studies of first- and second-order phase transitions in LC methacrylic monomers based on the omega-hexyloxysalicylaldimine group
(TAYLOR & FRANCIS LTD, 2007)
position-sensitive detector for data collection [11, 12].
By means of one differential temperature stabilizer near
the location of the sample it was possible to improve the
control to better than ¡0.1 K in the range 30–100uC
during the measurements...
pathway for the preparation of M68R. 884 E.A. Soto-Bustamante et al. in 35 ml of N,N-dimethylformamyde, 24.07 mmol of sodium hydrogen carbonate was added and the mixture allowed to react for 1 h at 100uC. Then 27.68 mmol of bromoctane was added...
pathway for the preparation of M68R. 884 E.A. Soto-Bustamante et al. in 35 ml of N,N-dimethylformamyde, 24.07 mmol of sodium hydrogen carbonate was added and the mixture allowed to react for 1 h at 100uC. Then 27.68 mmol of bromoctane was added...
Propuesta de rediseño del proceso de mantenimiento correctivo en el Hospital Clínico de la Red de Salud UC Christus
(Universidad de Chile, 2019)
El Hospital Clínico de la Red de Salud UC CHRISTUS está catalogado como uno de los mejores establecimientos de salud privada del país, entregando una calidad de servicio de excelencia. Sin embargo, su unidad de mantenimiento no alcanza estándares...
Microclimatic modifications of cushion plants and their consequences for seedling survival of native and non-native herbaceous species in the high andes of central Chile
(INST ARCTIC ALPINE RES, UNIV COLORADO, 2007-05)
temperatures during summer
months of 11.4 uC at 2600 m and 6.7 uC at 3150 m. Estimated annual
lapse rate for the area was 6.1 uC km21, with a seasonal variation
from 4.7 uC km21 in winter to 7.3 uC km21 in summer (Cavieres and
Arroyo, 1999). Thus, mean...
temperature during the growing season should be ca. 10 uC at 2800 m, and ca. 4 uC at 3600 m. TARGET SPECIES Azorella monantha and Laretia acaulis are low-growing and tightly knit cushion plants that occur throughout the Andes of Chile and Argentina...
temperature during the growing season should be ca. 10 uC at 2800 m, and ca. 4 uC at 3600 m. TARGET SPECIES Azorella monantha and Laretia acaulis are low-growing and tightly knit cushion plants that occur throughout the Andes of Chile and Argentina...
Despacho estocástico en sistemas eléctricos de potencia considerando centrales fotovoltaicas con respuesta rápida de frecuencia
(Universidad de Chile, 2018)
En la última década se ha visto un importante aumento de la participación de las energías renovables no convencionales a nivel mundial, llegando a superar la capacidad instalada de 2.000 GW, donde la generación fotovoltaica (PV) tiene una gran...
Enfermedades inflamatorias intestinales: Experiencia de dos centros chilenos
(Sociedad Médica de Santiago, 2005-10)
The incidence of Inflammatory Bowel Disease (IBD) has increased, particularly in the developed world, and probably also in Chile. Aim: To report our experience with a large group of patients from two medical centers, Hospital Clinico de la...
Diseño de un modelo de Benchmarking para evaluar competitividad en el mercado de cirugías del sector privado de salud
(Universidad de Chile, 2017)
Genesis Partners y financiado por la Red de Salud UC-Christus -quienes buscan nuevas estrategias para potenciar los servicios de atención hospitalaria- este trabajo de tesis busca contribuir en la búsqueda de un nuevo estándar en la industria para comparar...
Instrumentación y análisis sísmico experimental de la Torre Peñuelas
(Universidad de Chile, 2022)
A 98 km de Santiago, en una colaboración entre el MINVU y el Centro de Innovación en Madera UC se edificó el proyecto de la Torre Peñuelas, uno de los edificios más altos de madera en Chile y Latinoamérica, que si bien tiene un carácter experimental...
Distancia transaccional en los Programas de educación contínua a distancia de la Pontificia Universidad Católica de Chile
(Universidad de Chile, 2022)
indicadores de distancia transaccional en los comentarios de retroalimentación expresados por los docentes en los foros en línea de 13 cursos de educación continua impartidos por la UC Chile entre los meses de abril y diciembre de 2017, y los comentarios de...
La despedida del angelito: la venta de canal 13 a Andronico Luksic
(Universidad de Chile, 2014)
SHOW EN CHILE
MACHOS: EL REGRESO DE CANAL 13 A LA DzGUERRA DE LAS TELESERIESdz 36
LA CAMPAÑA DEL VIH/SIDA QUE INCOMODÓ A LOS CURAS 39
LA UC AUMENTA SUS ATRIBUCIONES FISCALIZADORAS 42
EL CASO GEMITA BUENO 43
UNA VENTA FRUSTRADA 49
INFORME VALECH: EL...
NOCTURNAS LLEGAN AL 13 140 EL AÑO DE DzLOS ‘8Ͳdz 144 EL REVIVAL DE LOS MATINALES 147 DzEL TÍO EMILIOdz 152 CALLA, YERKO, CALLA 153 UN DzTELEͳ3dz MÁS POLÍTICO 159 LA PRUEBA DE FUEGO DE BOFILL 163 ¿EL 13 SE ABRE A LA BOLSA? 168 EL DÍA EN QUE LA UC PUSO EN...
NOCTURNAS LLEGAN AL 13 140 EL AÑO DE DzLOS ‘8Ͳdz 144 EL REVIVAL DE LOS MATINALES 147 DzEL TÍO EMILIOdz 152 CALLA, YERKO, CALLA 153 UN DzTELEͳ3dz MÁS POLÍTICO 159 LA PRUEBA DE FUEGO DE BOFILL 163 ¿EL 13 SE ABRE A LA BOLSA? 168 EL DÍA EN QUE LA UC PUSO EN...
Estudio del efecto de diferentes mezclas solventes etanolmetanol-acetona/agua sobre la extracción de antocianinas-flavonoides a partir de bayas de Murta y evaluación de la capacidad antioxidante de los extractos
(Universidad de Chile, 2024)
La EII consiste en un conjunto de enfermedades inflamatorias que incluyen el intestino
delgado y el colon. Los principales son la UC y CD. Las causas de este enfermedad aún son
desconocidas, siendo la dieta un rol importante en el desarrollo de esta...
IBD consists of a group of inflammatory diseases that include the small intestine and colon. The main ones are UC and CD. The causes of this disease are still unknown, with diet playing an important role in the development of this disease. One of the alternatives for its treatment is the use of phenolic compunds which have anti-inflammatory, anticancer and antioxidant properties. Murta corresponds to an endemic shrub species that grows in southern Chile, contains anti-inflammatory properties and has been used to treat diabetes. The aim of this study was to find de best solvent mixture for the greatest obtaining of flavonoids and anthocyanins quantified by HPLC and the greatest antioxidant capacity by ORAC and ABTS. Extracts were made with three solvents (Ethanol, Methanol and Acetone) at concentrations of 50 and 80% in water, which were characterized by yield (%), flavonoid content (mg eqquercetin- 3-glucoside/g d.m) and anthocyanins content (mg eq-cyanidin-3-glucoside/g d.m) and antioxidant capacity by ORAC (umolTE/g d.m) and ABTS (%) method. There were no significant differences for yield, the values were between 28-39%. Regardind flavonoids and anthocyanins, the highest value was obtained wirh 50% methanol, with values of 2,44 mg eq-quercetina-3-glucóside (ml and 0,17 mg eq-cyanidine-3-glucósido/ml with no significant differences between the three solvents. For antioxidant capacity, there were significant differences for ABTS, the best value was obtained with 80% acetone. ORAC had no significant differences but the highest value was 317 umol TE/g d.m for 50% ethanol. In conclusion, an extract with a high antioxidant capacity and high content of anthocyanins and flavonoids could be obtained with the three solvents under study, with 50% ethanol being the one that obtained de highest value in antioxidant capacity....
IBD consists of a group of inflammatory diseases that include the small intestine and colon. The main ones are UC and CD. The causes of this disease are still unknown, with diet playing an important role in the development of this disease. One of the alternatives for its treatment is the use of phenolic compunds which have anti-inflammatory, anticancer and antioxidant properties. Murta corresponds to an endemic shrub species that grows in southern Chile, contains anti-inflammatory properties and has been used to treat diabetes. The aim of this study was to find de best solvent mixture for the greatest obtaining of flavonoids and anthocyanins quantified by HPLC and the greatest antioxidant capacity by ORAC and ABTS. Extracts were made with three solvents (Ethanol, Methanol and Acetone) at concentrations of 50 and 80% in water, which were characterized by yield (%), flavonoid content (mg eqquercetin- 3-glucoside/g d.m) and anthocyanins content (mg eq-cyanidin-3-glucoside/g d.m) and antioxidant capacity by ORAC (umolTE/g d.m) and ABTS (%) method. There were no significant differences for yield, the values were between 28-39%. Regardind flavonoids and anthocyanins, the highest value was obtained wirh 50% methanol, with values of 2,44 mg eq-quercetina-3-glucóside (ml and 0,17 mg eq-cyanidine-3-glucósido/ml with no significant differences between the three solvents. For antioxidant capacity, there were significant differences for ABTS, the best value was obtained with 80% acetone. ORAC had no significant differences but the highest value was 317 umol TE/g d.m for 50% ethanol. In conclusion, an extract with a high antioxidant capacity and high content of anthocyanins and flavonoids could be obtained with the three solvents under study, with 50% ethanol being the one that obtained de highest value in antioxidant capacity....