1,720,958 research outputs found
Introduzione
Full text linkWooden coffered ceilings attest to the recovery of antiquity and the search for luxury in Renaissance architecture, first in Florence, then in Rome. They appear in 15th century Italian architecture with their formal and constructive perfection: carved, sculpted, painted, enriched with xylographies and plasters, in soft wood or in papier-mâché. Coffered ceilings, clad with gold or in bright red and blue colours, are polymateric masterpieces, the result of the work of several artisans, of transverse technical knowledge and of different artistic styles. Their diffusion in Renaissance architecture is sudden and pervasive: in a few decades they characterize the new interiors of Florentine building, such as the church of San Lorenzo, the Magi Chapel and some other rooms in the palazzo Medici. Simultaneously, in Rome, coffered ceilings emulate and surpass their former glory, renewing the naves of ancient basilicas – San Marco and Santa Maria Maggiore – as well as the great halls of stately aristocratic and curial palaces. This monographic issue aims at documenting and analysing, through some case studies, the revival of wooden coffered ceilings in the 15th century and their successive fortune; the techniques and the artists who conceived and executed them; the types of wood species used; the literary and artistic sources providing descriptions and instructions concerning their construction
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
“Un sol di paradiso”. I soffitti all’antica di palazzo Medici a Firenze
Full text linkThis paper clarifies the historical constructive aspects of two 15th century wooden ceilings of the Medici palace (later Riccardi): the ceiling of the great hall and that of the Magi chapel. An hitherto unknown documentation from the Archive of the Opera of Santa Maria del Fiore, establishes the dating of timber works in the building yard (January 1449 - February 1451), and explains the methods of supply, origins and quantities of the wood purchased by Cosimo the Elder for the palace. The two ceilings are among the first coffered ceilings carved the "ancient" way. Their novelty consists in the shape but also in the use of double composite beams to support the coffers: this technical device was so new in Florence at the period that it required the shipment of a wooden model of a beam (1451) from Ferrara. Finally, the study explains how the restoration and consolidation of the great hall ceiling throughout the centuries has completely transformed the original structure: the works carried out by the Riccardi family (1660) more than halved the size of the ceiling, and gave it a different pictorial decoration, now entirely removed after the recent pictorial restoration (1998) aimed at restoring the Fifteenth Century aspect to the ceiling
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
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