1,720,969 research outputs found
Tra Oriente e Occidente. Contributo ad una morfologia ermeneutico-fenomenologica dal punto di vista storico-culturale universale.
No full textIl lavoro di tesi del dr G. Menditto tenta di ricostruire alcune linee, profili e percorsi di pensiero che hanno esemplarmente tematizzato la diade metafisico-interculturale di Oriente e Occidente prendendo posizione (adeguata o inadeguata) rispetto alla problematica ad un tempo filosofica e storico-universale in essa insita e rappresentata
Homogeneous structures subjected to successive structural system changes -
No full textA viscoelastic analysis of structures subjected to successive structural system chages is performed
Homogeneous Structures Subjected To Repeated Structural System Changes
No full textIn this paper the creep effects in structures subjected to successive structural system changes are analyzed. The problem is related to structures that develop their structural system from statically determinate to indeterminate, with a gradual increase in the number of redundant restraints introduced at different times. Assuming a linear creep law, the stress redistribution caused by creep in the structure for each stage is evaluated. Writing the compatibility equation at the last restraint introduced, a recurrent formula for the history of redundant reaction is derived. The general solution is proposed as the sum of elastic quantities multiplied by integral terms (which take the creep effects into account) that are the same as the simple case where the additional restraints are introduced all together. The method presented demonstrates that, at all stages, the reaction at the last restraint does not depend on the introduction times of the previous restraints. This reaction is determined by a particular Volterra integral equation solved by numerical procedures of the general method
Viscoelastic Moment-Curvature Diagrams
No full textIn this paper, a computational viscoelastic analysis method of sections in reinforced concrete is presented. This study examines the stress-strain history in the interval of time considered. A nonlinear constitutive law for concrete, elastoplastic constitutive law for steel, and a heterogeneous cracked section are considered. The creep behavior of concrete is described by means of the AAEM method, suitably adjusted and used in an iterative process. The proposed method can be used for the plotting of bending moment-curvature diagrams with a given axial load. The diagrams contain a set of curves, each relative to an interval of time. The use of these diagrams allows the determination of the strain and stress field at any time and the study of the evolution in time of the bearing capacity of the structures in reinforced concrete
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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