Search results for " methodology."
showing 10 items of 520 documents
African Law(s)
2023
The book presents a critical rethinking of the study of law in Africa from a comparative law perspective and proposes a new approach on how to consider law in Africa. It highlights the inadequacies of current Western theoretical perspectives in comparative law, especially for studying African law, arguing that they are too eurocentric to fully catch the peculiarities and characteristics of the African “lawscape”. The common thread of the present work is that of consider law in Africa from a different perspective. The aim of the proposed approach is to demonstrate that the African legal culture can be considered at the same level of the Western one, so that – being deeply rooted in the cultu…
Negative-pressure cavitation extraction of cajaninstilbene acid and pinostrobin from pigeon pea [Cajanus cajan (L.) Millsp.] leaves and evaluation of…
2011
Abstract In this study, an efficient negative-pressure cavitation extraction (NPCE) technique was developed to extract cajaninstilbene acid (CSA) and pinostrobin (PI) from pigeon pea [Cajanus cajan (L.) Millsp.] leaves. The operating parameters were optimised using single-factor experiment and central composite design combined with response surface methodology. Well-fitting models for the extraction of CSA and PI were successfully established. From the economic perspective, the selected operating parameters were: extraction pressure −0.075 MPa, extraction temperature 45 °C, material size 40 mesh, ethanol concentration 80%, extraction time 30 min, liquid/solid ratio 30:1 and 4 extraction cyc…
Stevia rebaudiana Bertoni as a natural antioxidant/antimicrobial for high pressure processed fruit extract: Processing parameter optimization
2013
Response surface methodology was used to evaluate the optimal high pressure processing treatment (300-500 MPa, 5-15 min) combined with Stevia rebaudiana (Stevia) addition (0-2.5% (w/v)) to guarantee food safety while maintaining maximum retention of nutritional properties. A fruit extract matrix was selected and Listeria monocytogenes inactivation was followed from the food safety point of view while polyphenoloxidase (PPO) and peroxidase (POD) activities, total phenolic content (TPC) and antioxidant capacity (TEAC and ORAC) were studied from the food quality point of view. A combination of treatments achieved higher levels of inactivation of L. monocytogenes and of the oxidative enzymes, s…
Solvent-free microwave-assisted extraction of polyphenols from olive tree leaves: Antioxidant and antimicrobial properties
2017
International audience; Response surface methodology (RSM) and artificial neural networks (ANN) were evaluated and compared in order to decide which method was the most appropriate to predict and optimize total phenolic content (TPC) and oleuropein yields in olive tree leaf (Olea europaea) extracts, obtained after solvent-free microwave- assisted extraction (SFMAE). The SFMAE processing conditions were: microwave irradiation power 250-350 W, extraction time 2-3 min, and the amount of sample 5-10 g. Furthermore, the antioxidant and antimicrobial activities of the olive leaf extracts, obtained under optimal extraction conditions, were assessed by several in vitro assays. ANN had better predic…
Evaluación de las actividades realizadas mediante la metodología de Aprendizaje Basado en Problemas
2020
[ES] La metodología de Aprendizaje Basado en Problemas (ABP) requiere un enfoque de evaluación en el que se evalúen una serie de competencias específicas y transversales. Esta evaluación debe de tener un carácter formativo que permita a los estudiantes identificar y corregir los errores a tiempo. Por lo tanto, es necesario disponer de herramientas para poder evaluar apropiadamente los resultados de aprendizaje y las competencias establecidas. En la asignatura de Corrosión de segundo de Máster de Ingeniería Química, el ABP se ha evaluado a través de un informe a entregar tras cada sesión de ABP, en donde se recogen las principales conclusiones tras la resolución cooperativa del problema plan…
El aprendizaje servicio como propuesta metodológica para una pedagogía crítica
2016
El presente artículo aborda la relación entre la pedagogía crítica y los pilaresfundamentales de la metodología del aprendizaje servicio. Su principal objetivo esdemostrar, de un modo concluyente, la idoneidad del aprendizaje servicio comometodología para alcanzar objetivos pedagógicos tales como la emancipación, latransformación y la justicia social. El trabajo parte de la clarificación de los pilaresfundamentales de la pedagogía crítica, entendida como paradigma filosófico-educativoque emerge de la Teoría Crítica de la Escuela de Frankfurt. Posteriormente, el artículoda cuenta de los fundamentos pedagógicos del aprendizaje servicio, aportandoargumentos que evidencian su capacidad para sat…
Archaeological survey projects in Sicily: issues and best practices from eighties to present time
2017
A partire dagli anni '80 del secolo scorso sono state effettuate numerose indagini archeologiche in Sicilia, in zone dell'isola molto diverse: approcci metodologici, contesti geografici e cronologici, ed infine lo stato dell'edizione, non sempre sono confrontabili tra loro da molti punti di vista Visualizza. Lo scopo di questo lavoro è sia di esaminare questi progetti, prestando attenzione agli aspetti metodologici e di possibili distorsioni interpretative, sia di elaborare buone pratiche utili per nuovi progetti. Since the 80s of the last century several archaeological surveys were carried out in Sicily, in very different areas of the island: methodological approaches, geographical and chr…
Towards the definition of a sustainable Smart Model for the suburbs redevelopment
2020
Starting from the analysis of the problems that characterize the Italian suburbs, the application of a Smart Methodology to a real peripheral area is presented. In literature, several studies underline the urgent request of the city's periphery, enhancing local and national projects to increase the quality of life in the suburbs. In this framework, authors propose a multifunctional centre development, characterized by modern technologies (both structural and plant) to implement energy efficiency and social aggregation, in line with the citizen's needs. Once the simulation model of alternative solutions, such as construction type, energy system and social services, was elaborated in Matlab/S…
Hybrid prediction-optimization approaches for maximizing parts density in SLM of Ti6Al4V titanium alloy
2022
AbstractIt is well known that the processing parameters of selective laser melting (SLM) highly influence mechanical and physical properties of the manufactured parts. Also, the energy density is insufficient to detect the process window for producing full dense components. In fact, parts produced with the same energy density but different combinations of parameters may present different properties even under the microstructural viewpoint. In this context, the need to assess the influence of the process parameters and to select the best parameters set able to optimize the final properties of SLM parts has been capturing the attention of both academics and practitioners. In this paper differ…
Leilighetskompleks i små lokalsamfunn- virkninger i eiendomsmarkedet : en analyse basert på data fra Egersund
2009
Masteroppgave i økonomi og administrasjon - Universitetet i Agder 2009 Hensikten med oppgaven er å undersøke boligmarkedet i Egersund, og virkningene av bygging av større leilighetskomplekser. Bygging av leiligheter har økt de siste årene, og utgjør i dag 21,9 % av det totale boligmarkedet. Spesielt i større byer har det vært mye bygging av leiligheter. Denne trenden finnes nå også i mindre byer. På bakgrunn av teori har jeg utledet en prisfunksjon. Denne gir prisen som en funksjon av de ulike egenskapene til boligene. Funksjonen dannes på bakgrunn av etterspørrernes etterspørselsfunksjoner og tilbydernes tilbudsfunksjoner. En prisfunksjon kan anta ulike former. Jeg har valgt å se nærmere p…