1,721,011 research outputs found
An investigation of the behaviour of bored piles in pyroclastic sands.
No full textMoroto & Mitachi eds, Balkema Rotterda
Recenti sviluppi nella modellazione del comportamento di fondazioni superficiali. Relazione Generale.
No full textA testimonianza del ritorno di interesse nei riguardi di un tema tradizionale e centrale dell’ingegneria geotecnica, gli ultimi anni hanno visto l’organizzazione di diversi convegni specialistici sulle fondazioni – in particolar modo quelle superficiali – e, più in generale, una marcata ripresa della ricerca scientifica sull’argomento, pubblicata sulle principali riviste del settore. Tale rinnovato interesse è promosso anche dalla crescente richiesta di analisi dettagliate e realistiche di tutte quelle strutture offshore - sempre più diffuse - che si trovano ad operare in condizioni ambientali inusuali e particolarmente severe. Nella recente letteratura internazionale si tende così a dare sempre maggior rilievo alle ricerche sulla modellazione della risposta di fondazioni superficiali soggette a condizioni di carico generali; il presente Convegno non fa eccezione, se in questa sessione vengono presentate ben 4 memorie su 10 che, a vario titolo, fanno riferimento a tale aspetto.
In questa seconda parte della relazione generale si è pertanto ritenuto opportuno concentrare l’attenzione sulla modellazione unitaria di questo comportamento, basata su un approccio innovativo di grande interesse, dapprima introducendo alcuni richiami dei concetti distintivi per giungere ai successivi sviluppi in termini di avanzata modellazione teorica e sperimentale e concludere infine con le recenti prospettive di inserimento in elaborati programmi di analisi strutturale
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
Pore Water Regime in Active Earthflows and Effects on Slope Movements
No full textThe paper presents the results of long-term monitoring of pore water pressures and displacements in some active earthflows in highly fissured tectonized clay shales in the southern Italian Apennine. The number and variety of landslide sizes and the abundance of data allowed to draw a consistent picture of the earthflow behaviour. In particular, the experimental evidences point out the different influence of piezometric regime on the kinematic features depending on the landslide’s depth
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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