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    Analisi composizionali dei crogioli rinvenuti nello scavo del Chiozzino

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    Soprintendenza per i Beni Archeologici dell'Emilia Romagna - Ministero dei Beni Culturali - Sinteco Real Estat

    L'attività vetraria del XV secolo a Ferrara: indagini petroarcheometriche

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    Oggetto di questo lavoro è lo studio petrochimico I di 48 campioni di reperti vitrei, rinvenuti a Ferrara ne-Igli scavi di Palazzo Schifanoia, Palazzo Paradiso e in pn'ala dell'ex convento di San Paolo. I numerosissimi reperti vitrei rinvenuti unitamente I al materiale ceramico, a Palazzo Schifanoia proven-jgono dalla vasca sotterranea, denominata E6, e sono attribuibili alla seconda metà del XV secolo; proven-Igono inoltre dalla vasca (35/2) e risultano di poco an-priori ai precedenti. Parte dei campioni di Palazzo Paradiso proviene da Bia vasca manomessa (stanza 11 - vasca 11/4), risaliente all'incirca alla metà del XV secolo, contenente anche materiale residuo del XVI, e dalla vasca C/13, I che presentava manufatti in legno, vetro e, soprattutto, I molta ceramica, quest'ultima risalente circa alla metà 111 XV secolo. Spostandoci all'interno dell'ex convento di San aolo, i reperti analizzati provengono dal riempimento •ella vasca (US 13) in cui era presente materiale cera-Bico di varia tipologia, i cui reperti più recenti sono ri-I conducibili alla fine del XV secolo1. I vetri studiati sono campioni rappresentativi delle lane tipologie riscontrate negli scavi oggetto del prelente lavoro; in particolare, si tratta di vetri di uso co-Bune, selezionati seguendo i criteri di "colore" (dal-•ncolore a varie tonalità di giallo e verde) e di "desti-•zione d'uso" (22 bottiglie, 13 orinali, 8 bicchieri, 3 •nestre, 1 ciotola e 1 fiala)

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    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

    Variations on the Author

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    “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

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    We 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

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

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    Excavation in progress: the palaeolithic site of Isernia La Pineta, Italy

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    Il giacimento paleolitico di Isernia La Pineta è oggetto di continue esplorazioni sistematiche ed interdisciplinari che necessitano una complessa ed integrata organizzazione degli interventi di scavo. Lo scavo costituisce anche un'ottima vetrina metodologica in quanto è coperto da un padiglione annesso ad una struttura museale, che ne facilita la visitazione
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