186,201 research outputs found

    Le certificazioni di italiano a stranieri

    No full text
    Il capitolo fornisce un quadro delle certificazioni ufficiali di competenza linguistica per l'italiano L2, delle attività di ricerca e delle scelte teoriche e metodologiche relative allo sviluppo dei loro strumenti di valutazion

    Computer applications for multisensory communication on cultural heritage

    No full text
    The paper aims to illustrate the design and implementation of subsidies for a multisensory communication of the cultural heritage for inclusive fruition through innovative processing techniques designed specifically with technological solutions and experimental studies of materials for the reproductions of mobile artefacts, plans and touch panels. Information technologies have been added to works through experimental archaeology for the reproduction of artefacts for multi-sensory itineraries. In our experience, some specific computer applications are important to improve the fruition of historical-artistic heritage also to people with sensory disabilities penalized by communications systems generally used in these contexts. In this paper we show some projects and solutions for museums and naturalistic- archaeological trails accessible to all sort of visitors. The purpose of this 'cultural routes' is to remove barriers of various types, starting with the removal of sensorial barriers. We realised reproductions of some archaeological objects to be explored using one's hands with particular interest to communicate to the blind and visually impaired people. © Archaeopress and the individual authors 2016. All rights reserved

    Mechanistic Rationalization of Unusual Sigmoidal Kinetic Profiles in the Machetti–De Sarlo Cycloaddition Reaction

    No full text
    Unusual sigmoidal kinetic profiles in the Machetti–De Sarlo base-catalyzed 1,3-dipolar cycloaddition of acryl­amide to <i>N</i>-methyl­nitro­acet­amide are rationalized by detailed in situ kinetic analysis. A dual role is uncovered in which a substrate acts as a precursor to catalyze its own reaction. Such kinetic studies provide a general protocol for distinguishing among different mechanistic origins of induction periods in complex organic reactions

    Alberese (GR). Il riparo funerario e le evidenze minerarie al Poggio di Spaccasasso: campagne di scavo 2008-2011

    No full text
    Nel saggio vengono presentati i risultati delle indagini sul campo condotte tra gli anni 2008-2011 unitamente alle analisi e alle sperimentazioni geofisiche per le indagini non invasive preliminari di alcune aree del sito archeologico Poggio di Spaccasasso. A questo si aggiungono lle restituzioni tridimensionali ottenute con scanner 3D o mediante fotogrammetria e il GIS per lo studio intrasite della camera sepolcrale e del fronte della cava di Cinabro

    Going Beyond Counting First Authors in Author Co-citation Analysis

    No full text
    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
    corecore