Search results for "Idaci"
showing 10 items of 142 documents
Crosslinking of poly(vinylpyrrolidone) activated by electrogenerated hydroxyl radicals: a first step towards a simple and cheap synthetic route of na…
2016
A facile electrosynthesis route for the preparation of polymer nanogels based on the in situ production of hydroxyl radicals is reported for the first time. Electro-Fenton process with continuous H2O2 electrogeneration and Fe2+ regeneration performs better than electro-oxidation with a boron-doped diamond or dimensionally stable anode for promoting crosslinking of poly(vinylpyrrolidone). Keywords: Electrogenerated hydroxyl radicals, BDD, DSA, Electro-Fenton, Polymer modification, Nanogel
Validación del Instrumento sobre el Constructo de Colegialidad Docente en la Gestión de Centros Educativos de Educación Secundaria en los Distritos E…
2017
La finalidad del presente estudio es validar un instrumento diseñado para evaluar el constructo de Colegialidad Docente, en el marco del Modelo de Cohesión Social, en centros educativos del nivel secundario de República Dominicana Los Objetivos del Estudio: (1) Validar un instrumento que sirva para evaluar el Constructo Colegialidad Docente en centros educativos de educación secundaria en República Dominicana; y (2) Determinar el nivel de Colegialidad Docente que se presenta en centros educativos de educación secundaria de los sectores público y privado, pertenecientes a los Distritos Educativos 06-05 de La Vega y 10-03, de Santo Domingo, República Dominicana. El tipo de Estudio: es de cará…
(Di)segni contemporanei
2018
Il contributo intende presentare criticamente alcuni interventi di restauro allineati alla più moderna ed evoluta cultura della conservazione. I due interventi sono compiuti in Sicilia sui resti di due monumenti distrutti dal terremoto che danneggiò la vallata del fiume Belice nel 1968. Il tema della reintegrazione della lacuna nei volumi strutturali degli edifici storici è realizzata attraverso il procedimento per "astrazione volumetrica", con esiti sorprendenti e d'elevata qualità conservativa. The contribution intends to critically present some restoration interventions aligned with the most modern and evolved culture of conservation. The two interventions are carried out in Sicily on th…
Engineered Trx2p industrial yeast strain protects glycolysis and fermentation proteins from oxidative carbonylation during biomass propagation
2012
Abstract Background In the yeast biomass production process, protein carbonylation has severe adverse effects since it diminishes biomass yield and profitability of industrial production plants. However, this significant detriment of yeast performance can be alleviated by increasing thioredoxins levels. Thioredoxins are important antioxidant defenses implicated in many functions in cells, and their primordial functions include scavenging of reactive oxygen species that produce dramatic and irreversible alterations such as protein carbonylation. Results In this work we have found several proteins specifically protected by yeast Thioredoxin 2 (Trx2p). Bidimensional electrophoresis and carbony…
Reduction of oxidative cellular damage by overexpression of the thioredoxin TRX2 gene improves yield and quality of wine yeast dry active biomass
2009
14 pages, 7 figures, 2 tables.
Physiological and genomic characterisation of Saccharomyces cerevisiae hybrids with improved fermentation performance and mannoprotein release capaci…
2015
Yeast mannoproteins contribute to several aspects of wine quality by protecting wine against protein haze, reducing astringency, retaining aroma compounds and stimulating lactic-acid bacteria growth. The selection of a yeast strain that simultaneously overproduces mannoproteins and presents good fermentative characteristics is a difficult task. In this work, a Saccharomyces cerevisiae × S. cerevisiae hybrid bearing the two oenologically relevant features was constructed. According to the genomic characterisation of the hybrids, different copy numbers of some genes probably related with these physiological features were detected. The hybrid shared not only a similar copy number of genes SPR1…
Validation of a questionnaire designed to measure nursing student satisfaction with practical training
2019
Objective: to validate an instrument designed to assess practical training and measure nursing student satisfaction with clinical practice modules. Method: cross-sectional study (academic year 2014-2015). Validation of the self-administered, anonymous, 17-item Nursing Student Satisfaction with Practical Training Questionnaire, developed by consensus by eight practical training experts in three nominal group sessions. Exploratory and confirmatory factor analyses were performed to assess internal consistency and validity. Student satisfaction was measured in relation to each module and all modules as a whole. Results: 174 responses. High item-test correlation (≥0.90); Cronbach’s alpha = 0.91;…
Propiedades métricas de un instrumento para evaluar el Valor Social Subjetivo de la Educación: escala SECS-EVALNEC VSE-Estudiantes-Secundaria
2018
El estudio analiza los resultados de la aplicación de un instrumento que pretende medir el Valor Social Subjetivo de la Educación. Trabajando con un grupo de 341 estudiantes de Educación Secundaria Obligatoria en España, se exponen las propiedades métricas del instr umento desde una metodología de Teoría Clásica de los Tests y Teoría de Respuesta al Ítem para comprobar su fiabilidad y bondad de ajuste. Después de comprobar la dimensionalidad de la escala y el funcionamiento de los reactivos, los datos muestr an que todos se ajustan adecuadamente al modelo de referencia. A partir de ello, presentamos una propuesta de escala SECS - EVALNEC VSE - Estudiantes - Secundaria unidimensional conform…
Escala de Valencia de actitudes y creencias hacia la hipnosis: una aproximación a la modelización de las relaciones complejas entre las dimensiones d…
2018
RESUMEN TESIS Presentada por Dña. Adelaida González Pérez, titulada Escala de Valencia de Actitudes y Creencias hacia la Hipnosis versión Cliente: una aproximación a la modelización de las relaciones complejas entre las dimensiones de las actitudes hacia la hipnosis. Directores: Dr. Jesús Modesto Suárez Rodríguez y Dr. Antonio Capafons Bonet Los objetivos de la tesis son: 1- Realizar una aproximación a la modelización de las relaciones entre las dimensiones de las actitudes hacia la hipnosis, según la Escala de Valencia de Actitudes y Creencias hacia la Hipnosis-Cliente (EVACH-C). 2- Encontrar el/los modelo/s de ecuaciones estructurales subyacentes. 3- Contribuir a una comprensión más profu…