1,721,024 research outputs found
RICICLAB: un laboratorio didattico mobile sul territorio
No full textI principali obiettivi di RICICLAB, un laboratorio didattico della Facoltà di Architettura di Genova, sono: sensibilizzare studenti, cittadini e autorità locali al tema della sostenibilità ricorrendo a materiali di recupero e producendo oggetti “a costo zero”; permettere agli studenti di acquisire consapevolezza del processo realizzativo di un piccolo organismo architettonico; promuovere la partecipazione dei cittadini; mettere in evidenza i possibili risultati di un rapporto di collaborazione creativa tra Università e autorità locali, in un momento critico per la mancanza di risorse per entrambi
An atomic force microscope estimation of the point of zero charge of silicon insulator
No full textThe authors measured electrostatic interaction between the silicon nitride tip of an atomic force microscope (AFM) and different silicon insulators surfaces: silicon oxide; the silicon nitride layer of a light addressable potentiometric sensor (LAPS) and the silicon nitride surface of an ion sensitive field effect transistor (ISFET) device produced by a modified process with an additional annealing step, immersed in electrolyte solutions at different pH values. Measured interactions are compared with computer simulations carried out using a theoretical model based on the site-binding theory for the development of the double-layer structure of the surface charge and an analytical approximated solution of the Poisson-Boltzmann equation. An estimation of the surface charge developed at different pH values is then obtained for the sample under study and the AFM tip material and, consequently, their point of zero charge are determined. The proposed procedure could become a valuable routine characterization test for the production of silicon-based chemical sensors. Results suggest that an additional surface charge, independent from pH, was introduced by the annealing proces
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
Mechanical Testing of Reference Model Gels and Articulae Cartilage by Atomic Force Microscopy
No full text
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
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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