1,721,119 research outputs found
Il metodo fotografico RTI (Reflectance Transformation Imaging) per la documentazione delle superfici archeologiche. L’applicazione ai materiali di età protostorica
Full text linkRTI is a photographic method that allows to enhance any unevenness on the surface ofan object. In archaeology, the RTI method is used for various purposes, for instance, to study superficial markings on ceramic artefacts and to understand their possible causes (natural unevenness of the materials, manufacturing techniques, intended use). This article describes a research that has been conducted thanks to the RTI method on some ceramic artefacts dating back to the Bronze Age, from the village located in Via Ordiere, in Solarolo (RA). The research aims to test the limits of use of this instrument and its actual potential to give information on certain aspects of the production process of a ceramic artefact, such as the tools used to refine the surface (smoothing or polishing). Moreover, the RTI images have been tested as auxiliary tool for archaeological design of lithic artefacts from the same sites (arrowheads). The first part of the article is dedicated to the methodological aspects of the research: the processing chain, the tools and the time needed to complete each phase of the work. In the second part, the results of the research and the possible developments are discussed. The points of strength and the limits of this method are both summarised in the last section of the article
Técnica para inoculación directa de embriones de pollo de 16 a 48 horas de desarrollo
No full textFil: Fiorini, A. Ministerio de Salud Pública de la Nación; Instituto Bacteriológico "Dr. Carlos G. Malbrán"; Argentin
Descripción de un virus aislado a partir de un enfermo de neumonía atípica primitiva (Virus Et.) : I. Caracteres generales
No full textFil: Fiorini, A. Ministerio de Salud Pública de la Nación; Instituto Bacteriológico "Dr. Carlos G. Malbrán"; Argentin
An Urban Archeological Project in Rimini. Preliminary Report (2017-2018). The Contribution of Building Archaeology to Research and Conservation
Full text linkSince 2017, a new research project has been undertaken by the University of Bologna on Urban Archeology in Rimini, as part of an agreement with the Soprintendenza Archeologia, Belle Arti e Paesaggio per le Province di Ravenna, Forlì-Cesena e Rimini. This project is an integrated study with academic aims that hopes to produce a map of the archeological evidence of the city. In the first phase of work, which is still ongoing, the researchers have been focused on the architectonic study of some important monuments of the Roman city which are still part of the current urban landscape, such as the Theater, the Amphitheater, Tiberius’s Bridge and the so-called Arch of Augustus
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
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