Search results for " Methodology"
showing 10 items of 575 documents
Simultaneous determination of main phenolic acids and flavonoids in tomato by micellar electrokinetic capillary electrophoresis
2017
[EN] A methodology for the determination of tomato phenolic acids and flavonoids has been developed combining MEKC and DAD detection. The influence on polyphenol separation of pH and background electrolyte, BGE (borax, acetonitrile, methanol and SDS concentrations), was studied and optimized using response surface methodology and weighted desirability function. Separation of polyphenols was achieved within 20 min at 15 degrees C using 11.3 mM borax and 11.2 mM SDS adjusted to pH 8.5 as BGE. Validation was performed using standards and tomato extracts. Recoveries ranged from 77 to 106%. Acceptable repeatabilities were obtained for peak area (% RSD <3.1% and <3.7%) and migration times (% RSD …
Estrategias ante el uso de Internet por población usuaria en Atención Primaria: una clasificación sociológica
2021
Resumen: Objetivo: Analizar y clasificar las estrategias comunicativas que desarrollan los/las profesionales de atención primaria de salud de la Comunitat Valenciana ante el uso de Internet como fuente de información de salud por parte de la población usuaria, a través de las categorías analíticas de poder y control que, según Basil Bernstein, caracterizan los procesos de comunicación de los encuentros terapéuticos. Método: Estudio cualitativo mediante entrevistas en profundidad a profesionales de atención primaria de salud de la Comunitat Valenciana (n = 18). Para el análisis de los discursos se ha aplicado el lenguaje de descripción de la teoría de Bernstein con el objetivo de clasificar …
An individual-based dataset of carbon and nitrogen isotopic data of Callinectes sapidus in invaded Mediterranean waters
2022
The characterisation of functional traits of non-indigenous and invasive species is crucial to assess their impact within invaded habitats. Successful biological invasions are often facilitated by the generalist diet of the invaders which can modify their trophic position and adapt to new ecosystems determining changes in their structure and functioning. Invasive crustaceans are an illustrative example of such mechanisms since their trophic habits can determine important ecological impacts on aquatic food webs. The Atlantic blue crab Callinectes sapidus is currently established and considered invasive in the Mediterranean Sea where it has been recorded for the first time between 1947 and 19…
Un estudio sobre la praxis docente del violonchelo en los conservatorios profesionales de la provincia de Valencia / A study about the practice of te…
2016
El presente estudio tiene como objetivo conocer la metodología empleada en la especialidad de violonchelo en los conservatorios de enseñanzas profesionales de la provincia de Valencia. El instrumento de recogida de la información ha sido el cuestionario y la muestra ha estado formada por 34 profesores de 22 conservatorios. Se ha empleado una metodología de complementación, tanto cualitativa como cuantitativa. Los resultados muestran que a pesar de existir algunas coincidencias en la forma y herramientas de trabajo, cada profesor aplica su propia metodología adaptada a las necesidades y características de cada alumno.
De la nécessité d'évaluer les pratiques enseignantes : entre enjeux sociaux et obstacles méthodologiques
2003
This article takes a critical look at the assessment of teaching practices. Firstly, it reminds both principles and methodology whereby school is assessed ; secondly, it mentions social and political issues on which those researches have an effect. Unfortunately, teaching practices are not very much known in France, and so is their efficiency. As a result, significative improvements may be done to develop research on education in France.
An evaluation of the environmental factors for supply chain strategy decisions using grey systems and composite indicators
2020
[EN] The purpose of this work is to assess the importance of environmental factors in a supply chain with four partners as a preliminary step to select the competitive strategies and objectives. To achieve this purpose, a real case study was carried out in a footwear supply chain, in which two approaches were used: the grey system theory and uncertainty analysis tools for composite indicators. In order to validate both approaches, a seven-phase research methodology was developed and applied to our case study. In addition, the priorization of environmental factors was calculated individually for each partner. The results allow managers to establish the competitive strategy that best suits th…
Architectural Design in the Digital Era. Identifying computer influences and new expressive trends in current architecture
2014
La ricerca propone una riflessione sull’architettura contemporanea in funzione del ruolo sempre più preponderante che le tecnologie digitali hanno assunto all’interno del processo progettuale. L'introduzione dei computer nel panorama dell'architettura ha prodotto una rivoluzione nei metodi e nei processi progettuali che contribuiscono alla generazione della forma architettonica. Si è osservato che l'uso pervasivo dei software ha contribuito a modificare sostanzialmente il linguaggio architettonico. Obiettivo della tesi è capire in che modo l'espressività dell'architettura si è modificata e si sta modificando, quanto pervasivo sia l'uso del computer e quali possano essere gli sviluppi futuri…
Getting Docking into Shape Using Negative Image-Based Rescoring
2019
The failure of default scoring functions to ensure virtual screening enrichment is a persistent problem for the molecular docking algorithms used in the structure-based drug discovery. To remedy this problem, elaborate rescoring and post-processing schemes have been developed with a varying degree of success, specificity, and cost. The negative imagebased rescoring (R-NiB) has been shown to improve the flexible docking performance markedly with a variety of drug targets.The yield improvement is achieved by comparing the alternative docking poses against the negative image of the target protein’s ligand-binding cavity. In other words, the shape and electrostatics of the binding pocket is dir…
Parental communication and feelings of affiliation in adolescent aggressors and victims of cyberbullying
2018
Cyberbullying is an increasingly frequent problem among adolescents, and it produces considerable social concern. Using a cross-sectional and quantitative methodology, the main objective of this study was to analyze the differences among students involved in the perpetration and victimization of cyberbullying (non-involved, occasional, and severe), in their parental communication, and feelings of affiliation with classmates. The sample consisted of 849 adolescents (51.7% boys and 48.3% girls) from 12 to 18 years old (M = 14.5
Simone de Beauvoir on Sexual Difference
2018
In the introduction to The Second Sex, Simone de Beauvoir clarifies her philosophical approach to embodiment and sexual difference by writing: “However, it is said, in the perspective which I adopt—that of Heidegger, Sartre and Merleau-Ponty—that if the body is not a thing, it is a situation: it is our grasp upon the world and an outline of our projects.”