Search results for "historical background"

showing 3 items of 3 documents

Past, Present and Future Perspectives on Halloysite Clay Minerals

2020

Halloysite nanotubes (HNTs), clay minerals belonging to the kaolin groups, are emerging nanomaterials which have attracted the attention of the scientific community due to their interesting features, such as low-cost, availability and biocompatibility. In addition, their large surface area and tubular structure have led to HNTs’ application in different industrial purposes. This review reports a comprehensive overview of the historical background of HNT utilization in the last 20 years. In particular it will focus on the functionalization of the surfaces, both supramolecular and covalent, following applications in several fields, including biomedicine, environmental science and catalysis.

2019-20 coronavirus outbreakCoronavirus disease 2019 (COVID-19)Surface PropertiesSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Pharmaceutical ScienceNanotechnologyReviewhalloysite nanotubesengineering.materialHalloysiteAnalytical Chemistrylcsh:QD241-441lcsh:Organic chemistryDrug DiscoveryPhysical and Theoretical ChemistryParticle SizeMineralsMolecular StructureOrganic ChemistrySettore CHIM/06 - Chimica Organicahistorical backgroundsupramolecular functionalizationChemistry (miscellaneous)engineeringMolecular MedicineClayClay mineralschemical modificationMolecules
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Understanding the Context of Teacher Professionalism in Education Systems Undergoing Transition – Kosovo Case

2014

Abstract This qualitative case study examines teacher professionalism in Kosovo in light of its rapidly developing education system. The study involves 14 teachers at the beginning of their careers (1-7 years of experience) examining teacher thinking against the evolving stages of teacher professionalism, namely pre-professionalism, autonomous professionalism, collegial professionalism and post-professionalism. The study reveals that Kosovo teachers reflect strong dominance of pre- professionalism and autonomous professionalism while they demonstrate a weaker reflection of collegial and post- professional aspects of teachers’ work. It provides insights for viewing teacher professionalism wi…

Cultural backgroundsocial beingDominance (economics)Transition (fiction)teacher professionalismPedagogycontextual factorsGeneral Materials ScienceContext (language use)collegialitySociologyCollegialityhistorical backgroundProcedia - Social and Behavioral Sciences
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I tamburi a cornice in Sicilia

2015

Le prime attestazioni della presenza del tamburo a cornice in Sicilia risalgono al V secolo a.C. Lo strumento è poi documentato fino ai giorni nostri attraverso raffigu¬razioni, documenti d’archivio, resoconti di viaggiatori stranieri, testi di interesse folklorico e, piuttosto ampiamente, dalla ricerca etnomusicologica moderna, per mezzo di audio-registrazioni e videofilmati. Morfologia, tecniche esecutive, repertori, decorazioni, contesto d’uso dei tamburelli in Sicilia si inscrivono nel più ampio quadro dell’area italiana (centro-meridionale) e mediterranea, ma con alcune specificità, soprattutto nelle tecniche esecutive. Queste, sebbene affini a quelle impiegate in altre regioni italian…

Settore L-ART/08 - EtnomusicologiaFirst evidences of frame drums in Sicily trace back to the V century b.C. Tambourines have been recorded until today by paintings archive documentation observations provided by foreign travellers folkloric literature and quite widely by modern ethnomusicology through audio and video recordings collected on the field. Morphology performance techniques repertoires decorations and social use of tambourines in Sicily refer to the wider context of Italian (central-southern part) and Mediteranean area but with some peculiarities chiefly referring to performance skills. Though similar to the techniques practised in other Italian regions in Sicily we can observe a typical style that can be connected with a common historical background with the Arabic-Islamic world.
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