1,725,969 research outputs found
Seismic vulnerability assessment and retrofitting of a cultural heritage building in Cento, Ferrara, Italy
No full textIn this paper the usability check and the seismic vulnerability appraisement of a masonry building with cultural and artistic value located in the Municipality of Cento, Ferrara, Italy after the last Italian seismic event (Emilia-Romagna, 2012 May 20th-29th), are reported and discussed. After presenting some details of these earthquakes, a case study is presented and useful information on both the historical and geometrical properties have been given. Later, the usability check of the cultural heritage building examined has been completed with the identification of damage that occurred under earthquake. Finally, the seismic vulnerability assessment of the building on the basis of the simplified LV1 approach given by the Italian Guidelines on Cultural Heritage has been performed. The analysis results have shown that building has an average vulnerability degree, so as to require local repair and strengthening intervention, which have been presented in the paper. © Civil-Comp Press, 2014
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
The ancient timber roofing structures in Emilia-Romagna region
No full textWidespread survey, aiming at the evaluation of both vulnerability of the structures and usability of the buildings, have been carried out after the seismic events occurred on May 2012 in Emilia-Romagna districts. During the surveys, several roof typologies have been verified, which often evidenced lack in terms of earthquake-proof features. In contrast, some ancient timber roofs showed an original construction technology, according to the seismic mitigation measures. Clearly, the attention to the behaviour of the roofing structures against the horizontal actions was due to the historic memory related to earthquakes occurred in the past or simply due to a good construction practice lost during the following years. This paper it is devoted to explain the analysis campaign carried out on an ancient timber roofing structure located in the historic centre of the town of Cento (FE), aiming at the characterisation of its seismic behaviour. The study consists on three subsequent steps: 1) in-depth visual and geometrical survey; 2) in-situ non-destructive tests for preliminary material characterization; 3) Finite Element modelling of the complex structure. © (2013) Trans Tech Publicutions, Switzerland
In-situ experimental campaign on the covering structures of “Villa dei Misteri” in Pompeii
No full textThe archaeological site of Pompeii is located near modern Naples in the Italian region of Campania. As known, the ancient Roman city was mostly destroyed and buried under 4–6 m of ash and pumice in the eruption of Mount Vesuvius in 79 AD, and it remained covered until the beginnings of archaeological excavations during the second half of the XVIII century. Today, it is an UNESCO World Heritage Site and one of the most visited archaeological sites in the world. With the aim preserving a unique archaeological heritage, the Pompeii Archaeological Park is directing various projects which involve many scientists and expertise. Within this ambit of activity, ENEA has analysed the health state of the modern covering structures of Villa dei Misteri, an exceptionally well-preserved domus enriched by many precious frescoes. To qualify a standard analysis procedure applicable to similar roofing typologies, very common in the archaeological site of Pompeii, a methodology based on a multidisciplinary approach has been developed. This paper is focused on the in-depth diagnostic campaign carried out on the roof structures of the Peristylium, where both timber and reinforced concrete beams have been completely analysed. The campaign has been conducted in two subsequent steps: visual and geometrical survey and then in-situ non-destructive tests for the material characterisation. On the basis of the resulting data, a visual classification has been performed and very useful information for mechanical characterisation has been collected. Finally, a proposal of restoration intervention has been suggested. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature
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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