Search results for "CNO"
showing 10 items of 5223 documents
Bionanocomposite films containing halloysite nanotubes and natural antioxidants with enhanced performance and durability as promising materials for c…
2020
In the last decade, the interest toward the formulation of polymer films for cultural heritage protection continuously grew, and these films must be imperatively transparent, removable, and should not react/interact with surface of the artworks. In this research, bionanocomposite films, based on chitosan (Ch) and pectin (P) and containing naturally occurring fillers and antioxidants, were formulated by solvent casting methods and were accurately characterized. The natural halloysite nanotubes (HNT) have a two-fold role, specifically, physical compatibilizer and antioxidant carrier. Therefore, the theoretical solubility between Ch and P was estimated considering Hoy&rsquo
The influence of Opuntia ficus-indica mucilage edible coating on the quality of ‘Hayward’ kiwifruit slices
2016
Abstract The aim of this work was to study the effect of mucilage edible coating extracted from Opuntia ficus-indica (OFI) on the quality and shelf life maintenance of packaged kiwifruit slices. OFI mucilage alone or added with TWEEN ® 20 were applied on kiwifruit fresh cut surfaces. After treatments, kiwifruit samples were stored under passive atmosphere at 5 ± 1 °C for 3, 5, 7 and 12 days. At each storage period, visual quality and flavor score, pectin content, ascorbic acid and the microbiological characteristics were measured together with CO 2 and O 2 content in the packages. Kiwifruit slices coated only with mucilage or with mucilage plus Tween 20, showed a significant higher firmness…
Maltose-conjugated chitosans induce macroscopic gelation of pectin solutions at neutral pH
2014
Injectable polymer scaffolds are particularly attractive for guided tissue growth and drug/cell delivery with minimally invasive intervention. In the present work, "all-polymeric" gelling systems based on pectins and water-soluble maltose-conjugated chitosans (CM) have been developed. Maltose-conjugated chitosan has been synthesized at three different molar ratios, as evaluated by FITR analysis and fluorimetric titration. A thorough rheological characterization of the blends and their parent solutions has been performed. Macroscopic gelation has been achieved by mixing the high esterification degree pectins with CM at higher maltose grafted to chitosan contents. Gels form in a few minutes a…
A methodological approach exploiting modern techniques for forest road network planning
2016
A well-developed road network allows all forest activities, including wood harvesting, firefighting and recreational activities. However, forest road construction and maintenance involve economic and environmental costs. For these reasons, forest road network planning is a fundamental phase of forest management, maximising the benefits and reducing costs and impacts. Thanks to modern technologies in data collection both for terrestrial and forest characteristics, new methods and tools have been developed to improve and facilitate road planning. The aim of this study was the development of a Decision Support System for helping managers during forest road network planning, exploiting Multi-Cr…
Forest Sharing® as an Innovative Facility for Sustainable Forest Management of Fragmented Forest Properties: First Results of Its Implementation
2023
The forestry sector in Italy and throughout Europe is going through a critical period due to ongoing natural and anthropological processes, such as climate change and the abandonment of rural areas. These processes lead to a constant fragmentation of properties in small forest parcels, with direct impacts on management capacity. In this framework, new sustainable forest management methods are being tested and are shown to be good practices to oppose the decline of forest ecosystems. Their innovative aspects concern the introduction of a form of shared and circular economy, where management is built on the process, rather than on the product. Their technical activities are based on precision…
Análisis del papel mediador de las capacidades de innovacion tecnológica en la relación entre la form’a organizativa flexible y el desempeño organiza…
2010
ResumenEste trabajo examina la relación entre la forma organizativa flexible y el desempeño organizativo tomando como variables mediadoras las capacidades para la innovación tecnológica, basándose para ello en los postulados del Enfoque Basado en Recursos. Esta cuestión de investigación es importante porque nos permite comprender mejor las variables antecedentes de la capacidad de innovación tecnológica relacionadas con el diseño organizativo y sus efectos en el desempeno organizativo. Para el contraste empírico se toma una muestra de 159 empresas industriales españolas y se modeliza un sistema de ecuaciones estructurales mediante la técnica Partial Least Squares (PLS). Los resultados muest…
Competenza digitale dei docenti e disabilità. Formazione su Episodi di Apprendimento Situato (EAS) per l'innovazione didattica.
2018
Il percorso di ricerca intrapreso mi ha permesso di strutturare una serie di riflessioni, già avviate all’interno di percorsi di studio universitari precedenti, relativamente all’evidente alta inclusività propria delle Tecnologie dell’informazione e della Comunicazione (TIC) a supporto di alunni con Bisogni Educativi Speciali (BES). A partire dall’assunto che l’innovazione digitale della didattica passi necessariamente dalla consapevole orchestrazione dei diversi strumenti tecnologici e che l’innovazione didattica preceda quella digitale, si è reputato doveroso indagare relativamente alle modalità di sviluppo e di miglioramento delle competenze digitali dei docenti, soprattutto, per quanti …
"Infancias mediadas" : narrativas visuales en la formación del profesorado
2020
Resumen: Este texto da cuenta del proyecto “Infancias mediadas”, un proyecto mixto de Investigación-acción y de Investigación educativa basada en las artes, llevado a cabo en la Facultad de Educación Psicología y Trabajo Social de la Universidad de Lleida. Su objetivo es incorporar los discursos y las mediaciones tecnológicas como contenidos educativos y, en concreto, explorar la utilización de narrativas visuales y de imágenes mediáticas en educación artística, en los diferentes grados de formación del profesorado de la FEPTS. Para ello indaga en las narrativas visuales realizadas por el alumnado de la Facultad: imágenes autobiográficas –en relación a sus propias experiencias mediáticas in…
Revista iberoamericana de educación
2014
El presente artículo refleja la experiencia de creación de relatos digitales en un curso de formación continua en línea para profesores de español en Brasil, llevado a cabo en el marco de un proyecto de cooperación internacional establecido entre la Universidad Estatal de Campinas (Brasil) y la Universidad Politécnica de Valencia (España), con el patrocinio de los ministerios de Educación de ambos países. El curso realizado, de 66 horas lectivas, tuvo como objetivo central la capacitación en el uso de tecnología educativa, facilitando el uso de herramientas de edición web para la creación de recursos educativos digitales. Desde el año 2005 la enseñanza del español es obligatoria en todas la…
La tècnica de l’itinerari didàctic en la formació inicial del professorat: reconstrucció d’una experiència
2015
El presente artículo tiene como objetivo reconstruir una experiencia de innovación docente realizada por los autores en el curso 2013-2014 en tres asignaturas de las áreas de Didáctica de las Ciencias Experimentales y las Ciencias Sociales, en el cuarto curso del Grado de Maestro/a en Educación Infantil, mediante la cual se han proporcionado herramientas teóricas y prácticas a los futuros docentes de infantil para utilizar la técnica del itinerario didáctico en esta etapa educativa. Para ello se ha hecho uso de pedagogías que apuestan por un análisis crítico del entorno a partir de metodologías globalizadoras y activas. La reconstrucción se realiza a partir de datos procedentes de la obse…