1,721,060 research outputs found
Andiamo alla lavagna! Integrare la LIM in classe
No full textNel volume viene analizzato il "fenomeno" LIM da diversi punti di vista: i vantaggi per gli studenti e i docenti, le nuove dinamiche che lo strumento introduce nel contesto classe, i risultati dei primi studi sulla qualità dell'apprendimento con la LIM. Una parte metodologica, descrive l'utilizzo possibile in classe
Come le mangrovie : dalla didattica dell’emergenza alla didattica della quotidianità = Like Mangroves : From Emergency Teaching to everyday Teaching
No full textCovid-19 and the consequent Distance Didactic in Emergency (DDiE) in the Schools have made it clear that the question of digital and the world wide web are a dimension of thought, rather than technological. Just as methodology based on face to face activity is not salvific in itself, compared to learning, digital cannot be the only emergency solution. Some research has highlighted the criticalities of both digital training and digital organization: what is emerging is the lack of “thought” that can lead “the” and “to” digital. As a italian school institution – which should respond (and be placed in condition to) the Constitutional dictates – it is not enough for its main actors to understand the methodological differences involved between learning in the presence context and learning with digital and online environment. The school in the digital age should be an existential project for every student
LA-ICP-MS analysis of silicates in basic lavas of the Marsili volcano (Marsili back-arc basin, S. Tyrrhenian): preliminary results.
No full textCharacterization of stone tesserae from "the Indian Triumph of Dionysus" Mosaic (Casignana, Reggio Calabria, Italy)
No full textThe archaeological site of Casignana (Reggio Calabria) represents one of the most important Roman sites of Southern Italy thanks to its extension and refinement of its mosaics such as the "Indian Triumph of Dionysus". Its stylistic complexity is related also to the wide range of polychrome stone tesserae used. For this reason, a minero-petrographic and geochemical characterization of some tesserae was carried out by Polarized Optical Microscopy (POM), Scanning Electron Microscope (SEM), and Electron probe microanalyzer combined with wavelength dispersive X-ray spectroscopy (EPMA-WDS). The results suggested the heterogeneity of the stone tesserae in terms of petrographic features and the probable provenance from both local and not sites
Archaeometric Study of the White Marbles from “Madonna Della Febbre” Altar in San Domenico Church (Cosenza, Southern Italy)
Full text linkSan Domenico Church was built between 1441 and 1468 and represents one of the most important historical buildings of the Cosenza area (Calabria, Southern Italy) thanks to its architectonic style and the works inside, such as the “Madonna della Febbre”, a notable marble altar dated back to the XVI century. The church, as well as the sculptural group, underwent various interventions over time, unfortunately scarcely documented; thus, in this paper, the characterization of six white marble samples coming from the altar, was carried out to determine their provenance. The samples were analyzed by means of complementary methodologies well known in the archaeometric field: polarized optical microscopy (POM); an electron probe micro analyzer coupled with an energy dispersive spectrometer (EPMA-EDS); inductively coupled plasma–mass spectrometry (ICP-MS); and isotope ratio mass spectrometry (IRMS). The results provided important information about the “Madonna della Febbre” altar, suggesting the presence of different typologies of marbles and hypothesizing their possible provenance, including Carrara and Docimium. It was not clear if these marbles were re-used materials but, regardless, the reported information adds precious elements to the history of the entire architectonic complex, providing new issues to be deepened
The three polychrome mosaics of S. Aloe quarter in Vibo Valentia (Calabria, Southern Italy): Chemical characterization of glass tesserae
No full textIn the present study, the glass tesserae from three Roman mosaics located in S. Aloe quarter -Vibo Valentia (Calabria Italy) were analysed, with the aim of investigating the colouring and opacification techniques. The micro-chemical characterization of the tesserae was conducted by means of EMPA-WDS and LA-ICP-MS. Results show that all the tesserae are natron-based and chemically comparable with major Roman compositional groups. In addition, the colouring/opacification techniques identified are consistent with the presumed Roman dating of the mosaics
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
- …
