1,721,033 research outputs found
Characterization of geotechnical spatial variability in river embankments from spatially adjacent SCPT
Get PDFSTATISTICAL IDENTIFICATION OF HOMOGENEOUS SOIL UNITS FOR VENICE LAGOON SOILS
No full textThe paper addresses the identification of soil units which are physically homogeneous in terms of hydro-mechanical response to cone penetration. A moving-window statistical procedure is applied to a number of CPTU-related parameters provided for the Malamocco site in the Venice lagoon. Example criteria for the assessment of homogeneity of soil units are provided. Subjective and objective aspects of the procedure are discussed
Risk analysis for the Ancona landslide—I: characterization of landslide kinematics
Get PDFThe Ancona landslide is a complex, deep-seated landslide displaying composite rotational–translational kinematisms and affecting a large urban area in the Ancona municipality on the Adriatic coast of central Italy. The landslide was reactivated with a large and destructive event on 13 December 1982 following a long period of precipitation and has remained active since. This paper focuses on the estimation of the landslide kinematics (more specifically, the horizontal and vertical components of average yearly velocity) for subsequent estimation of risk for a set of 39 buildings as presented in a companion paper. The study relies both on the processing of inclinometer and radar interferometer monitoring data through statistical procedures. Triggering factors are not investigated. Outputs from the two sets of monitoring data are compared quantitatively and qualitatively. The inherent limitations in available data are discussed. The validity of the quantitative results in the context of the risk estimation effort is discussed
Pascolo e bosco: un legame fondamentale per l'allevamento bovino brado in Toscana
No full textL’utilizzazione razionale di tutte le risorse disponibili in un’azienda agro-zootecnica risulta essenziale per la sopravvivenza stessa dell’allevamento. In tale ottica un corretto sfruttamento della realtà forestale correlata con l’attività zootecnica si rivela di grande importanza per il territorio toscano, dove razze autoctone come la Maremmana e la Chianina vengono gestite estensivamente con successo. Per la salvaguardia del bosco è fondamentale tenere in considerazione alcuni fattori di variabilità, come la tipologia del bosco e del terreno, il carico animale e il suo tempo di permanenza, l’epoca di pascolamento e le razze impiegate. Solamente il raggiungimento di una vera e propria simbiosi tra attività zootecnica e forestale potrà far assumere al bosco nuove valenze estetiche, paesaggistiche e ambientali, accompagnate però anche da componenti produttive e protettive fondamentali per la sua stessa sopravvivenz
Congenital pain insensitivity associated with the Weber-Cockayne cutaneous syndrome(3 cases
No full textRisk analysis for the Ancona landslide—II: estimation of risk to buildings
Get PDFThis paper illustrates the quantitative estimation of specific risk (i.e., the product of hazard and vulnerability) for 39 buildings located upon the Ancona landslide based on the characterization of landslide kinematics presented in a companion paper. Hazard is quantified based on intensity, intended as the damaging potential of the kinetic and/or geometric attributes of the landslide, and is expressed in terms of expected exceedance of preset cumulative displacement thresholds for a set of five reference time intervals, ranging from 1 to 100 years. The estimation of hazard relies sequentially on (1) Monte Carlo simulation of displacement series, with sampling distributions of average yearly displacement defined on the basis of the statistical processing of inclinometer and radar interferometer data; and (2) the subsequent spatialization of displacement using radial basis interpolation as described in the companion paper. The vulnerability of the set of buildings relies on a quantitative model in which vulnerability is a function of landslide intensity and the resilience of the buildings. Resilience is a function of a set of indicators including structural type, age, and foundation type and is temporally variable due to the progressive structural degradation. Hazard, vulnerability, and specific risk are estimated for the set of five aforementioned reference time intervals. The magnitude and temporal dependence of hazard, vulnerability, and specific risk are assessed critically
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
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