1,720,994 research outputs found
Il soffitto ligneo policromo della chiesa di san Sebastiano a Venezia. Le indagini scientifiche per lo studio dei materiali e della tecnica pittorica
No full textIl soffitto ligneo policromo della chiesa di san Sebastiano a Venezia. Le indagini diagnostiche
No full textINDAGINI DI LABORATORIO SVELANO I MATERIALI E LA TECNICA PITTORICA DI GIORGIO VASARI NELLA PALA ALBERGOTTI
No full text
IL RESTAURO DEL SOFFITTO LIGNEO DELLA CHIESA DI SAN SEBASTIANO A VENEZIA. L’APPROCCIO ANALITICO
No full text
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
Analytical Study to Monitor the Effectiveness of a Combined LiquidDispensing and Micro-aspiration System for the Cleaning of Modern Oil Paintings
No full textAn integrated system for the controlled-delivery and micro-aspiration of aqueous solutions for cleaning sensitive painted surfaces has been developed and evaluat-ed. The system relies on a simple syringe-driver device, providing a constant and controllable flow of aqueous solution directly onto the cleaning brush and a surgi-cal micro-aspirator outfitted with a variety of accessories for removing the clean-ing solution from the surface through suction. By drastically decreasing the con-tact time of the aqueous solution, diffusion is greatly reduced, thereby minimizing swelling and possible disruption to sensitive surfaces as well as reducing the risk of the leaching of binding medium components. The aim of this study was to analyt-ically evaluate these risks on an unvarnished oil painting from the late 1970’s. Cotton swabs from aqueous cleaning, applied as per traditional swab rolling and through the controlled delivery/micro-aspiration were analyzed using X-day Fluo-rescence (XRF). Untreated and treated (cleaned) paint areas were then sampled and analyzed using Gas Chromatography-Mass Spectrometry (GC-MS) for changes to fatty acid profiles
- …
