Search results for "FLE"

showing 10 items of 3517 documents

E-portfolio e flipped classroom: un’indagine esplorativa con i futuri insegnanti di scuola primaria

2023

Il contributo intende far riflettere sul tema della formazione dei futuri insegnanti di scuola primaria, a partire dall’impiego dell’e-portfolio come dispositivo innovativo per promuovere l’acquisizione della competenza riflessiva e autovalutativa all’interno della flipped classroom. La ricerca, che ha coinvolto 154 studenti del Corso di laurea magistrale in Scienze della Formazione Primaria dell’Università degli Studi di Palermo, che frequentavano il corso di Docimologia nell’anno accademico 2020/2021, presenta i presupposti teorici, gli obiettivi e le modalità operative di un percorso che ha visto l’impiego dell’e-portfolio nella flipped per promuovere lo sviluppo delle competenze docimol…

The study aims to reflect on the training of future primary school teachers by starting from the use of the e-portfolio as an innovative tool to promote the acquisition of reflective and self-evaluation competence within the flipped classroom. The research involved 154 students of Primary Education Master’s Degree Course of the University of Palermo attending to the Docimology course during the academic year 2020/2021. This paper presents the theoretical assumptions objectives and operating methods of a path that made the use of the e-portfolio in flipped classroom to promote the development of docimological skills in higher education. It was hypothesized that the training intervention designed according to the principles of the flippmethodology and through the use of the e-portfolio would have contributed to the development of students’ self-evaluation skills during the 30 hours of the Docimology course.Settore M-PED/04 - Pedagogia Sperimentale
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Design e narrazioni

2022

Il testo nasce dall’esigenza di mettere a fuoco le implicazioni cognitive, metodologiche e progettuali del concetto di narrazione, sempre più ricorrente nella nostra esperienza quotidiana soprattutto per le molteplici forme di comunicazione e di produzioni culturali che vi si ispirano; si tratta di un concetto che anche nella riflessione teorica e nella progettualità del design sta alimentando dimensioni fortemente innovative ed evolutive nella costruzione, comunicazione di significati, contenuti immateriali, esperienze e valori emozionali che si sovrappongono e s’intrecciano all’espressione tangibile e funzionale degli oggetti, degli artefatti comunicativi, degli spazi. Si propone un perco…

The text arises from the need to focus on the cognitive methodological and design implications of the concept of storytelling increasingly recurrent in our daily experience especially for the many forms of communication and cultural productions that are inspired by itSettore ICAR/13 - Disegno Industrialeit is a concept that also in theoretical reflection and design planning is feeding strongly innovative and evolutionary dimensions in the construction communication of meanings intangible content experiences and emotional values that overlap and intertwine with the tangible and functional expression of objects communicative artifacts spaces.. It proposes a cognitive path tangent to the development of "narratology" and the theories of narrationthus we come across a multiplicity of disciplinary connections affecting sociology psychology anthropology philosophy semiotics and of course history cinema journalism advertising up to corporate communication and political propaganda. It is an articulated panorama that today seems to expand more and more and far from being mainly addressed to theoretical issues increasingly seems to be modeled on application performative and design aspects.
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Tommaso Maria Napoli Utriusque Architecturae Compendium Roma 1688 Breve trattato sulle fabbriche civili e militari e la conservazione delle architett…

2013

Il volume Tommaso Maria Napoli Utriusque Architecturae Compendium Roma 1688 Breve trattato sulle fabbriche civili e militari e la conservazione delle architetture del frate domenicano Tommaso Maria Napoli, vuole contribuire ad accrescere le nostre conoscenze sui principi che dovevano sottendere alla realizzazione dell’architettura civile e militare del periodo barocco e tardo barocco, così come espressi nel breve trattato scritto dal frate architetto, nato a Palermo, Tommaso Maria Napoli (1659-1725), e pubblicato a Roma alla fine del Seicento. Alla traduzione dal latino del trattato, redatta da esperti (Fabio Zarbo e Pietro Zarbo), è inclusa un’interessante ricerca, redatta congiuntamente c…

The volume Tommaso Maria Napoli Utriusque Architecturae Brief Compendium 1688 Rome treaty on civil and military factories and preservation of the architecture of the Dominican friar Tommaso Maria Napoli wants to help increase our understanding of the principles that should underpin the realization of civil and military baroque and late baroque period as expressed in the short treatise written by the monk architect born in Palermo Tommaso Maria Napoli (1659-1725) and published in Rome at the end of the seventeenth century. This translation from the Latin of the treaty drawn up by experts (Fabio Zarbo e Pietro Zarbo) included is an interesting research drafted jointly with Giuseppe Tantillo status of some of the architecture without realizing or attributed to the architect Tommaso Maria Napoli. In fact some cards are attached to the volume on the substance and state of preservation of the cathedral of the Assumption of Mary in Dubrovnik (Croatia) of the villas Valguarnera and Palagonia in Bagheria (near Palermo Italy) of the monument to the Immaculate and one of the towers of the church of San Domenico in Palermo (Italy). The volume is enriched by the presentation and afterword by Francesco Tomaselli that among other things starting from the definition of Restoration expressed by Tommaso Maria Napoli in his book presents a stimulating reflection on the meaning of Restoration. The essay Tommaso Maria Napoli Utriusque Architecturae Compendium 1688 ... is the first of the series Monument Document for the conservation of the architectural heritage and environment: Theory knowledge interventions publisher Aracne in Rome with director Francesco Tomaselli and with Comittee Scientific and editorial international.Settore ICAR/19 - Restauro
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Supervised learning of time-independent Hamiltonians for gate design

2018

We present a general framework to tackle the problem of finding time-independent dynamics generating target unitary evolutions. We show that this problem is equivalently stated as a set of conditions over the spectrum of the time-independent gate generator, thus transforming the task to an inverse eigenvalue problem. We illustrate our methodology by identifying suitable time-independent generators implementing Toffoli and Fredkin gates without the need for ancillae or effective evolutions. We show how the same conditions can be used to solve the problem numerically, via supervised learning techniques. In turn, this allows us to solve problems that are not amenable, in general, to direct ana…

Theoretical computer scienceDiagonalFOS: Physical sciencesGeneral Physics and AstronomyInverseToffoli gate02 engineering and technologysupervised learning01 natural sciencesUnitary statequantum computingSettore FIS/03 - Fisica Della Materia010305 fluids & plasmasSet (abstract data type)Computer Science::Hardware Architecturesymbols.namesakeComputer Science::Emerging Technologiesquant-ph020204 information systems0103 physical sciences0202 electrical engineering electronic engineering information engineering010306 general physicsEigenvalues and eigenvectorsQuantum computerMathematicsPhysicsFlexibility (engineering)Discrete mathematicsQuantum PhysicsSupervised learningInverse problemHermitian matrixmachine learningQubitsymbolsPairwise comparisonquantum circuitsQuantum Physics (quant-ph)Hamiltonian (quantum mechanics)Generator (mathematics)Quantum Information and Measurement (QIM) V: Quantum Technologies
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Surface plasmon interference fringes in back-reflection

2010

We report the experimental observation of surface plasmon polariton (SPP) interference fringes with near-unity visibility and half-wavelength periodicity obtained in back reflection on a Bragg mirror. The presented method based on leakage radiation microscopy (LRM) represents an alternative solution to optical near-field analysis and opens new ways for the quantitative analysis of SPP fringes. With LRM we investigate various SPP interference patterns and analyze the high reflectivity of Bragg mirror in comparison with theoretical models.

Theoretical modelsFOS: Physical sciencesGeneral Physics and AstronomyPhysics::Optics02 engineering and technology01 natural sciencesOpticsInterference (communication)0103 physical sciencesMicroscopy010306 general physicsPhysicsCondensed Matter::Quantum Gases[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]business.industrySurface plasmon021001 nanoscience & nanotechnologyDistributed Bragg reflectorSurface plasmon polariton[ PHYS.PHYS.PHYS-AO-PH ] Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]Reflection (physics)Optoelectronics0210 nano-technologybusinessPhysics - OpticsOptics (physics.optics)Localized surface plasmon
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A tris-oxovanadium pyrogallate complex: synthesis, structure, and magnetic and electronic properties

2021

International audience; With the aim of identifying new cation-phenolate complexes, we herein investigated the reactivity of pyrogallol (H(3)pgal) with vanadium salts. A trimetallic anionic complex was identified, and found to be formed under a broad set of reaction conditions. This complex, with the formula V3O3(pgal)(3)(3-), consists of three oxovanadium(iv) units connected together by three pyrogallate ligands to afford a bowl-shaped species presenting a pseudo 3-fold symmetry axis. Its crystal structure is reported, as well as its characterisation by a broad set of techniques, including powder X-ray diffraction, thermogravimetric analysis, infrared and Raman spectroscopy, and solid stat…

Thermogravimetric analysisMaterials science010405 organic chemistryInfraredQuímica organometàl·licaVanadiumchemistry.chemical_elementCrystal structure010402 general chemistry01 natural sciences0104 chemical sciencesInorganic ChemistryCompostos orgànics Síntesisymbols.namesakeCrystallographychemistry[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]symbolsMetal-organic frameworkReactivity (chemistry)Diffuse reflectionRaman spectroscopyDalton Transactions
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Nanocomposites of bacterial cellulose/hydroxyapatite for biomedical applications.

2008

In the present work, a nanocomposite material formed by bacterial cellulose (BC) networks and calcium-deficient hydroxyapatite (HAp) powders was synthesized and characterized. The HAp nanoparticles were previously prepared by a wet chemical precipitation method, starting from aqueous solutions of calcium nitrate and di-ammonium phosphate salts. Energy-dispersive spectroscopy reveals that the prepared HAp corresponds to calcium-deficient hydroxyapatite. BC-HAp nanocomposites were prepared by introducing carboxymethylcellulose (CMC) into the bacteria culture media. HAp nanoparticles were then introduced and remained suspended in the culture medium during the formation of cellulose nanofibrils…

Thermogravimetric analysisMaterials scienceBiocompatibilityBiomedical EngineeringAnalytical chemistryBiocompatible MaterialsMicroscopy Atomic ForceBiochemistryCell LineNanocompositesBiomaterialschemistry.chemical_compoundCrystallinityX-Ray DiffractionSpectroscopy Fourier Transform InfraredHumansCelluloseCelluloseMolecular BiologyNanocompositeBacteriaGeneral MedicineThermogravimetryDurapatitechemistryChemical engineeringBacterial celluloseAttenuated total reflectionCarboxymethylcellulose SodiumThermogravimetryPowdersBiotechnologyActa biomaterialia
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Properties and structure of cyanate ester/polysulfone/organoclay nanocomposites

2006

In this paper, a cyanate ester (CE) matrix has been modified with polysulfone and an organic montmorillonite (Nanofil 919). The blend was thermally cured in presence of copper acetylcetonate and nonylphenol. The morphology of the cured materials was investigated by wide angle X-ray, scanning and transmission electron microscopy techniques. An intercalate structure of silicate platelets in the cyanate matrix has been obtained. Furthermore, results of thermogravimetric analysis (TGA) suggest that CE/PSF/Nanofil 919 nanocomposites have higher thermal stability than the neat resin, increasing the onset decomposition temperature. Flexural strength distributions of modified and neat cyanate matri…

Thermogravimetric analysisMaterials scienceNanocompositePolymers and PlasticsCYANATE ESTEROrganic ChemistryOtras Ingeniería de los MaterialesPOLYSULFONEDynamic mechanical analysisINGENIERÍAS Y TECNOLOGÍASCyanatechemistry.chemical_compoundFlexural strengthchemistryCyanate esterIngeniería de los MaterialesMaterials ChemistryOrganoclayPolysulfoneComposite materialCLAY
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Effect of Plasma Treatment on Mechanical and Thermal Properties of Marble Powder/Epoxy Composites

2016

The aim of this work was to study the effect of the plasma treatment on the behavior of composite structures reinforced with marble powder, obtained as processing waste in the “Custonaci” basin. Moreover, different filler amounts (i.e. 10%wt, 20%, 30% in weight) were investigated. For the mechanical characterization, tensile and flexural quasi-static tests, Charpy impact test, and dynamic mechanical thermal analysis (DMTA) were performed. For the thermal stability, thermogravimetric analysis was carried out. Finally, real density and fraction of voids were measured. It was observed that untreated marble powder, on one hand, increases tensile and flexural stiffness and improves thermal stabi…

Thermogravimetric analysisMaterials sciencePolymers and PlasticsCharpy impact testCeramics and Composite02 engineering and technology010402 general chemistry01 natural sciences*Flexural strengthUltimate tensile strengthMaterials ChemistryThermal stabilityComposite materialMaterials Chemistry2506 Metals and AlloyPolymers and PlasticChemistry (all)Flexural rigidityGeneral ChemistryEpoxyDynamic mechanical analysis021001 nanoscience & nanotechnology0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei Materialivisual_artCeramics and Compositesvisual_art.visual_art_medium0210 nano-technology
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A new eco-friendly chemical treatment of natural fibres: Effect of sodium bicarbonate on properties of sisal fibre and its epoxy composites

2016

Abstract Several researchers have shown how sisal fibres possess remarkable tensile properties that yield them good candidates as reinforcement in biocomposite materials. This work aims to evaluate the effect of an eco-friendly and cost effective surface treatment method based on the use of commercial sodium bicarbonate (i.e. baking soda) on properties of sisal fibre and its epoxy composites. In particular, raw sisal fibres were treated with a 10%w/w of sodium bicarbonate solution for different periods (24, 120 and 240 h), at room temperature. Changes occurring in sisal fibres were characterized through scanning electron microscope, Fourier transform infrared spectroscopy, thermogravimetric…

Thermogravimetric analysisMaterials scienceScanning electron microscopeB. Mechanical propertie02 engineering and technology010402 general chemistry01 natural sciencesIndustrial and Manufacturing EngineeringFibreFlexural strengthUltimate tensile strengthThermal analysisComposite materialFourier transform infrared spectroscopySISALcomputer.programming_languageStatistical properties/methodMechanical EngineeringEpoxyChemical treatment021001 nanoscience & nanotechnology0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiMechanics of Materialsvisual_artCeramics and Compositesvisual_art.visual_art_mediumBiocomposite0210 nano-technologycomputerA. Fibres; B. Mechanical properties; C. Statistical properties/methods; Chemical treatment; D. Thermal analysis; Ceramics and Composites; Mechanics of Materials; Mechanical Engineering; Industrial and Manufacturing Engineering
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