1,721,156 research outputs found
La sala dei Cento Giorni a Palazzo della Cancelleria, un mondo sospeso tra realtà e illusione. Analisi, interpretazione e rappresentazione delle Prospettive Architettoniche di Giorgio Vasari
No full textGiorgio Vasari nel 1546 realizza in soli cento giorni un’opera quadraturista di notevoli dimensioni a palazzo della Cancelleria
a Roma sotto indicazione delle storie scritte da Giovio e per volere del cardinale Farnese.
La ricerca è finalizzata a formulare uno studio che analizzi e interpreti gli affreschi prospettici presenti nella Sala dei Cento
Giorni: il visitatore che entra in questo ambiente è accolto da un vasto spazio di forma rettangolare completamente affrescato
sulle quattro pareti e la sensazione che ne riceve è quella di riconoscere in esse spazi illusori che alludono, secondo il suo
modello ideale, ad ambienti di diversa natura.
L’opera rappresenta un unicum nel suo genere per via del momento storico in cui si colloca e grazie ad alcuni elementi peculiari
come l’alto basamento o la presenza di scalee, che partendo da terra collegano idealmente lo spettatore con le storie che
narrano la vita di papa Paolo III, a cui la Sala è dedicata. L’importanza dello studio di questo tema è già stata messa in evidenza
da Vincenzo Fasolo nel 1968 e in seguito in occasione della ricerca PRIN2010, a tema delle Prospettive Architettoniche, e da
alcuni studi condotti nell’ambito della rappresentazione e del Disegno condotti da Riccardo Migliari, Marco Fasolo, Leonardo
Baglioni e Matteo Flavio Mancini.
L’analisi delle fonti bibliografiche, dei disegni e delle immagini prospettiche ha fatto emergere un forte legame tra la Sala e la
composizione della scena teatrale, tema operato dallo stesso Vasari a Venezia e Firenze, in cui è riconoscibile l’utilizzo di alcuni
elementi e impianti ricorrenti dell’opera dell’artista aretino. L’approccio interpretativo delle quadrature, che ha affrontato il
tema della ricostruzione tridimensionale delle immagini prospettiche, si compone anche, in via sperimentale, dell’applicazione
di strumenti per la rappresentazione virtuale utilizzati per analizzare e verificare le interpretazioni precedentemente sviluppate.
L’impianto architettonico ripetuto sulle quattro pareti si trasforma da teatro, in cui Vasari ambienta le storie cambiando i
fondali dipinti, in laboratorio virtuale in cui fruire le scene affrescate e i modelli tridimensionali.Giorgio Vasari in 1546 realized in only one hundred days a quadraturist work of remarkable dimensions in Palazzo della
Cancelleria in Rome under the indication of the stories written by Giovio and with the commission of Cardinal Farnese.
The research is aimed at formulating a study that analyzes and interprets the perspective frescoes present in the Sala dei Cento
Giorni: the visitor who enters this environment is greeted by a vast rectangular space completely frescoed on the four walls and
the sensation that he receives is that of recognizing in them illusory spaces that allude, according to his ideal model, to spaces
of a different nature.
The artwork is unique in its kind because of the historical moment in which it is placed and thanks to some peculiar elements
such as the high basement or the presence of stairs, which starting from the ground ideally connect the viewer with the stories
that narrate the life of Pope Paul III, to whom the room is dedicated. The importance of the study of this theme has already been
highlighted by Vincenzo Fasolo in 1968 and later on during the PRIN2010 research, on the theme of Architectural Perspectives,
and by some studies carried out in the field of representation and Drawing by Riccardo Migliari, Marco Fasolo, Leonardo
Baglioni and Matteo Flavio Mancini.
The analysis of the bibliographical sources, of the drawings and of the perspective images has brought out a strong link between
the Sala and the composition of the theatrical scene, a theme worked on by Vasari himself in Venice and Florence, in which it is
possible to recognize the use of some recurrent elements and installations in the work of the artist from Arezzo. The interpretative
approach of the quadratures, which dealt with the theme of the three-dimensional reconstruction of the perspective images,
also includes, on an experimental basis, the application of instruments for virtual representation used to analyze and verify the
interpretations previously developed. The architectural layout repeated on the four walls is transformed from a theater, in which
Vasari set the stories by changing the painted backdrops, into a virtual laboratory in which to enjoy the painted scenes and the
three-dimensional models
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
Trojan collision probability: a statistical approach
No full textWe study the long term evolution of the collision probability and of the impact velocity vimp in the two Trojan asteroid swarms. The new mathematical formalism by Dell'Oro and Paolicchi (1998) has been used since, in the calculation of the collision probability, it allows to account for the dynamical links among the Trojans and Jupiter orbital angles, due to the 1:1 resonance. This statistical method permits to compute both and vimp over a long timespan (we considered 1 Myr) without making use of heavy numerical integrations. Moreover, it allows to easily update the values of and vimp anytime more complete samples of Trojan orbits are available. The values of and vimp over a short timescale have been compared to those of Marzari et al. (1997) and a good agreement has been observed. Over a long timescale the influence of the secular frequency g5-g6 is clearly visible in . The large oscillations due to the secular frequency are wider for L4 than for L5. We have considered two different initial samples of orbits. The first is the same sample used by Marzari et al. (1997) and includes the orbits of 114 Trojans. The second, more complete, includes 223 objects. We observe an increase of in both the swarms when the more complete sample of Trojan orbits (223) is used. The vimp, instead, slightly decreases compared to the vimp found by Marzari et al. (1997) from the sample of 114 Trojans
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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