1,721,300 research outputs found
Mente, azione, normatività
No full textMente, Azione, Normatività raccoglie contributi di alcuni studiosi italiani accomunati da un percorso di ricerca che, pur muovendo da differenti prospettive (filosofia del diritto, filosofia dell’azione, filosofia della mente), finisce per affrontare problemi comuni e confrontarsi sui medesimi autori. Le ricerche qui raccolte, in particolare, si innestano sul filone di ricerca avviato dal filosofo inglese John Langshaw Austin, richiamandone talora il contributo in materia di analisi linguistica pragmatica. Attorno al contributo e all’eredità di Austin, del resto, gravitano alcune ricerche condotte in questi anni dalla Cattedra di Filosofia del Diritto dell’Università Bicocca.
Con una postfazione di Marina Sbisà
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
ANALISI TRIDIMENSIONALE DELLA MORFOLOGIA FACCIALE CON L'UTILIZZO DELLA STEREOFOTOGRAMMETRIA.
Full text linkThree dimensional analysis of facial morphology using stereophotogrammetry
The human face has been largely evaluated from the quantitative point of view in medical literature, using manual anthropometry, photography and radiography. The limits of these techniques are: long-time procedure in analogic data acquisition for manual anthropometry, bi-dimensionality for photography, invasivity for radiography.
Stereophotogrammetry promises to be a new, digital, three-dimensional, non invasive technique for evaluating the human face, in several medical fields, such as maxillofacial surgery, aesthetic surgery, orthodontics, prosthodontics, general dentistry.
The instrument is based on the binocular vision: two pairs of cameras, with known reciprocal distance and angulation, capture two different images of the same object, allowing its three-dimensional virtual reconstruction, using a dedicated software.
The current thesis proposes and evaluates three different applications of this technology: the first study proposes a new possibility in medical imaging, merging the superior dental arch with the 3D image of the face in a unique image. The procedure resulted accurate and reliable, with a relative error magnitude <1.2%, in comparison with direct anthropometry. Applications are possible in the diagnosis and treatment of the dento-facial pathologies, in the monitoring of the orthodontic and orthopaedic therapies.
The second study investigates the morphological changes of the facial soft tissues, after dental additive modifications. A dental treatment was simulated by applying veneers with different thicknesses (1 and 2 mm) to the vestibular surfaces of the superior anterior teeth and the resulting new position of the facial tissues was compared with the baseline one. The highest amount of morphological response (from 0.4mm to 0.6mm) was concentrated in a central area around the upper and the lower lip, even using 1mm thickness. The study can help physicians to formulate more complete diagnosis and treatment planning, especially in the aesthetic field of dento-labial region.
The third study is an anthropometric and aesthetic-related research of human face proportions, including references to the golden ratio. Out of a population of 600 subjects, who underwent a stereophotogrammetric facial acquisition, two groups of 20 subjects were extracted and divided in “very attractive” and “not attractive” by a panel of 4 judges. 10 facial ratios were compared between the two groups, using an ANOVA test, in order to find differences based on gender and attractiveness. The values of the facial ratios were also compared to the golden ratio (1.618) using a paired t-test. No significant differences were found in any group. Only a few facial ratios have significant relationships with the golden ratio. Beyond the technical results, the study is an example of how much helpful stereophotogrammetry could be in anthropometric research.
In conclusion, stereophotogrammetry proved to be a reliable technique in several face-related medical fields. Its characteristics of high-quality imaging, three-dimensionality, non-invasive and easy-to-use procedure will ensure its wider diffusion and affordability in the future
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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