1,720,972 research outputs found
Mengs, Batoni e Stanislao Augusto di Polonia: una controversia “regale”
No full textE' illustrato l'episodio che vide contrapposti Pompeo Batoni e Anton Raphael Mengs in un episodio di committenza del quale furono protagonisti Pio VI e il re di Polonia Stanislao Augusto Poniatowsky. La rivalità tra i due artisti è ben documentata dalle lettere di Mengs, qui analizzate alla luce di una polemica diplomatica scatenata dalla consapevolezza di Mengs del proprio rango nel contesto Europeo
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
A fully automatic non-planar slicing algorithm for the additive manufacturing of complex geometries
Get PDFThe aim of this work is the implementation of a novel non-planar slicing algorithm, capable of combining traditional planar layers with non-planar ones. The geometry to be reconstructed will consist of an inner volume made of planar layers, and an outer shell made of non-planar layers. Both planar and non-planar layers are in turn constituted by an outer region, the shell, and an inner region, the infill. The outer non-planar shell guarantees an enhancement in the aesthetic properties and electro-mechanical behaviour of the printed objects, as well as a better adhesion when directly built onto a complex geometry. The algorithm was tested on three different three-dimensional models usable for aerospace, electronics, and biomedical applications showing robust results. An experimental validation was carried out by using a 5-axis robotic printer equipped with an extrusion-based printing unit. Different structures combining planar and non-planar paths were printed onto complex substrates, as well as into a bone defect that was completely regenerated following the proposed approach. The comparison between our method and the existing non-planar slicing methods revealed several advantages such as the capacity to generate both top and bottom non-planar surfaces, the possibility to manage complex concave/undercut structures, as well as the option to directly register the planned printing path on the receiving substrate in the working environment. To ensure proper and easy use, a graphical user interface was also created
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Sul pittore dotto nella Roma del Settecento: Pompeo Batoni e Domenico Corvi
No full textGli studi sull’arte a Roma nel Settecento vanno progressivamente chiarendo le pratiche culturali collettive che, soprattutto nella prima metà del secolo, aprono alle arti figurative spazzi inediti di confronto e di dialogo. Le Accademie in particolare, a cominciare da quella dell’Arcadia, così come musei e teatri, pubblici e privati, moltiplicano il dibattito intorno a temi sacri e profani con la partecipazione degli artisti che si avvantaggiano di una nuova sociabilità che tende a rendere meno marcata l’attenzione alla differenza di rango. La fruizione collettiva dei saperi letterari, così come lo studio e la promozione dell’Antico, identificano ambiti di scambio intellettuale che chiedono il contributo di coloro che praticano le Arti del Disegno. In tale contesto si muovono, da protagonisti, Pompeo Batoni e Domenico Corvi, il primo autore, in età giovanile, di una serie di dipinti di sua invenzione che nel saggio vengono presi in esame analizzandone l’aspetto erudito, il secondo fautore dell’immagine dell’artista-filosofo che in questo contributo viene confrontata sia con i temi iconografici adottati dal maestro viterbese, sia con la trattatistica internazionale dedicata alla professione artistica
Valve-jet technology for robotic-based in situ bioprinting applications
No full textIn recent years in situ bioprinting has gained more attention thanks to the possibility of automatically and precisely depositing biomaterials ink/bioinks directly on the patient's site, thus, overcoming the limitations of the current approaches. This study aimed at evaluating the possibility of using a valve-jet technology for in situ bioprinting. When combined with other bioprinting technologies, such as extrusion-based bioprinting, multimaterial and multiscale in situ bioprinting can be achieved to recapitulate the complex structure and architecture of native tissues
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