Search results for " Rete"

Compromiso Estudiantil en el Contexto Universitario Colombiano y Desempeño Académico

2014

20 páginas A pesar de la ampliación de la cobertura en la educación superior latinoamericana, persisten graves problemas de deserción que llevan a cuestionar el papel de las experiencias educativas en el fomento del compromiso académico de los estudiantes. Esta investigación se realizó en Colombia y buscó determinar la relación que existe entre el compromiso estudiantil y el desempeño académico de un grupo de universitarios colombianos. El estudio transversal y correlacional empleó la versión en español de la encuesta National Survey of Student Engagement (NSSE) que mide el nivel de participación de los estudiantes en cinco dimensiones: reto académico, aprendizaje activo y colaborativo, int…

Improvement of partition coefficients determination of aroma compounds in food matrices by the phase ratio variation method

2011

The Phase Ratio Variation (PRV) method is a very valuable method commonly used for liquid/vapor partition coefficients data acquisition of aroma compounds. Nevertheless, some limits are linked to this method, especially for volatile compounds. A careful examination of the PRV equation leads us to propose the following expression: 1/Cvap-real =(nliq/n0) x 1/Cvap-ideal = (nliq/n0) x (1/KC0 + (1/Co) b), We performed an examination for two cases of K values (K1=0.001 and K2=0.05), putting forward that a carefully choice of b range values is crucial for reliability of the regression calculation 1/A versus b.

Effects of pyrolysis temperature on the hydrologically relevant porosity of willow biochar

2018

Biochar pore space consists of porosity of multiple length scales. In direct water holding applications like water storage for plant water uptake, the main interest is in micrometre-range porosity since these pores are able to store water that is easily available for plants. Gas adsorption measurements which are commonly used to characterize the physical pore structure of biochars are not able to quantify this pore-size range. While pyrogenetic porosity (i.e. pores formed during pyrolysis process) tends to increase with elevated process temperature, it is uncertain whether this change affects the pore space capable to store plant available water. In this study, we characterized biochar poro…

Il lavoro con gli adolescenti: fattori "contingenti" e suicidio

2009

Danteum-Network: Il paradiso si può estendere

2017

“Con la mostra “Sezioni”, si è " voluto coinvolgere i protagonisti dell’architettura italiana in una sfida insolita, che ha prodotto risultati interessanti e sorprendenti. Invitando autori di altissima qualità, appartenenti a diverse generazioni, per ridisegnare la sezione della Divina Commedia", l'iniziativa ha proposto la definizione di " uno spazio di ricerca inedito, ben al di là dei confini tradizionali del progetto. .......la mostra è stata un’occasione preziosa non solo per rivendicare l’attualità di Dante nella cultura italiana, ma soprattutto per arricchire il dibattito sull’architettura attraverso il confronto prezioso e proficuo con gli altri campi del sapere”. Con queste parole …

Una rete sul Mediterraneo. Simulazione di un modello virtuoso.

2010

BENEFICIOS RELACIONALES, SATISFACCIÓN Y LEALTAD EN EL COMERCIO MINORISTA: UNA COMPARATIVA INTERSECTORIAL

2009

RESUMENEn el contexto del marketing de relaciones, resulta de gran importancia para el establecimiento minorista identificar el tipo de beneficios de la relación que influye en mayor medida sobre sus resultados en términos de satisfacción del cliente y lealtad hacia el minorista, de manera que se garantice una relación continua y satisfactoria. Dichos beneficios pueden tener distinto peso en función del tipo de actividad llevada a cabo por el minorista. El presente trabajo pretende analizar empíricamente un modelo que refleje los distintos tipos de beneficios relacionales obtenidos por los clientes, así como los beneficios obtenidos por la organización en términos de lealtad del consumidor …

Spatial data fusion and analysis for soil characterization: a case study in a coastal basin of south-western Sicily (southern Italy)

2012

Salinization is one of the most serious problems confronting sustainable agriculture in semi-arid and arid regions. Accurate mapping of soil salinization and the associated risk represent a fundamental step in planning agricultural and remediation activities. Geostatistical analysis is very useful for soil quality assessment because it makes it possible to determine the spatial relationships between selected variables and to produce synthetic maps of spatial variation. The main objective of this paper was to map the soil salinization risk in the Delia-Nivolelli alluvial basin (south-western Sicily, southern Italy), using multivariate geostatistical techniques and a set of topographical, phy…

Studio e sviluppo di innovativi sistemi di misura e di comunicazione per le smart grid

The Mechanical Impact of Water Affected the Soil Physical Quality of a Loam Soil under Minimum Tillage and No-Tillage: An Assessment Using Beerkan Mu…

2021

The multi-height (low, L = 3 cm