Search results for "Materiali"
showing 10 items of 876 documents
Fatti e Fabule. Geografie more-than-wet del Mediterraneo Nero
2023
New Materialist Explorations into Language Education
2023
This open access book analyzes language education through a socio-material framework. The authors revisit their position as researchers by decentering themselves and humans in general from the main focus of research activities and giving way to the materialities that are agentive but often overlooked parts of our research contexts and processes. Through this critical posthumanist realism, they are able to engage in research that sees society as an ethical interrelationship between humans and the material world and explore the socio-materialities of language education from the perspectives of material agency, spatial and embodied materiality, and human and non-human assemblages. Each chapter…
Rewilding Language Education: Emergent Assemblages and Entangled Actions
2021
Integrating concepts and techniques from ethnomethodology and sociomaterialism, this article investigates the observable material processes involving human action and place‐based contexts of language use enabled by locative media. The focal pedagogical intervention utilized mobile augmented reality (AR) activities, the development of which was inspired by research on learning ‘in the wild.’ Applying the principle of reverse engineering, we introduce a pedagogical approach termed ‘rewilding’ for its emphasis on designing supportive conditions for goal‐directed interaction outside of classrooms. Three instances of AR materials use are presented from an out‐of‐class activity associated with un…
Presentazione
2008
Nel presente volume di Cesare Sposito, l’esigenza di indagare nel campo dell’accoglienza e di ritrovare quei caratteri della ricerca scientifica che ne definiscono la storia, la tecnica, i materiali e non di meno le emozioni, diviene l’obiettivo che l’Autore vuole raggiungere. Il volume si struttura in quattro parti. La prima parte, un tour tipologico attraverso i secoli, per usare un linguaggio più adatto, analizza l’importanza del viaggio come strumento di apprendimento e di svago, documenta come sia cambiata la tipologia degli utenti e come, di conseguenza, si sia trasformata la tipologia architettonica, in uno alle funzioni che essa accoglie al suo interno. L’excursus temporale preso in…
Nanopiattaforme di Ossido di Grafene perfluorurate: materiali biocompatibili con affinità per l'ossigeno
L’attacco covalente di molecule perfluorurate su ossido di graphene (GO) via sostituzione nucleofila aromatica ha consentito una facile funzionalizzazione delle lamelle di GO.1,2 La performance delle nanopiattaforme perluorurate (GOF) nell’uptake e rilascio di ossigeno è stata valutata in condizioni di pH fisiologico a differenti concentrazioni e temperature, dimostrando una maggiore affinità del materiale perfluorurato GOF rispetto al GO pristino. Anche a basse concentrazioni GOF ha mostrato valori di uptake di ossigeno a saturazione e velocità di diffusione superiori ad altri materiali proposti in letteratura per ingegneria tissutale, per l’ossigenazione cellulare durante la rigenerazione…
Organocatalisi: sviluppo di nuovi materiali supportati riciclabili ed ottimizzazione di reazioni in fase omogenea.
2011
Melt Processed PCL/PEG Scaffold with Discrete Pore Size Gradient for Selective Cellular Infiltration
2016
In order to develop scaffold able to mimic the natural gradient properties of tissues, biphasic and triphasic approaches were adopted. In this work, polycaprolactone/polyethylene glycol (PCL/PEG) scaffolds were prepared by using a combination of melt mixing and selective leaching without harmful solvents. The method permitted to develop three-layer scaffolds with high control of porosity and pore size. The mechanical properties were evaluated under physiological condition in order to simulate the real conditions of work. Co-culture of osteoblastic and fibroblastic mice cells were carried out in order to study the differential cellular permeation through the different pore size layers.
MATERIALS AND ARTISTIC TECHNIQUES OF THE FLEMISH WOODEN ALTAR FROM DEPOSITS OF ABATELLIS PALACE MUSEUM (PALERMO, ITALY)
2022
In the frame of the restoration intervention on a 16th century wooden altar performed by the experts of the Gallery of Art for the Sicilian Region ‘Palazzo Abatellis’, a deep scientific investigation of the artwork has been made by a scientific team in order to individuate the constitutive materials and techniques. The outcomes from the multi-analytical analyses supported the scheduling and monitoring of the conservation treatments and revealed the pictorial materials and underdrawing techniques typical of the artistic production for this typology of work of art widespread between the 15th and 16th centuries in central and northern Europe.
Ecocompositi MaterBi (R)/Farina di legno: ottimizzazione delle proprietà attraverso analisi statistica
2009
Compatibilization of Polylactide/Poly(ethylene 2,5-furanoate) (PLA/PEF) Blends for Sustainable and Bioderived Packaging.
2022
Despite the advantages of polylactide (PLA), its inadequate UV-shielding and gas-barrier properties undermine its wide application as a flexible packaging film for perishable items. These issues are addressed in this work by investigating the properties of melt-mixed, fully bioderived blends of polylactide (PLA) and poly(ethylene furanoate) (PEF), as a function of the PEF weight fraction (1–30 wt %) and the amount of the commercial compatibilizer/chain extender Joncryl ADR 4468 (J, 0.25–1 phr). J mitigates the immiscibility of the two polymer phases by decreasing and homogenizing the PEF domain size; for the blend containing 10 wt % of PEF, the PEF domain size drops from 0.67 &p…