1,720,980 research outputs found
Simulation of regional subsurface flow by finite element models
No full textThe numerical models represent very useful tools for the simulation of regional flows and may provide several indications as to a rational management and allocation of the available water resources. The very complex aquifer systems underlying the Friuli-Venezia Giulia Region in northeastern Italy, has been analysed with the aid of two combined models based on the finite element method. The first model simulates the steady flow in the Upper Plain and relies on the Dupit-Forchheimer—Boussinesq approach. The second one simulates the multi-aquifer basin of the Lower Plain and is based on the integro-differential theory of flow. Both models have been run under a series of realistic assumptions properly combined with the limited available information. The results obtained for the dry regime are moderately satisfactory and allow for the first-hand appraisal of the quantity involved in the overall regional groundwater balance. They also point out the need for a substantial improvement in the quality and quantity of the regional subsurface data vis à vis reliable future predictions in a wider framework of practical interest
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
Le architetture di UnionIsland: tra acque, bordi, insule, selve, tessuti e altre figuralità
No full textVenezia è sottesa in ogni immaginario urbano. Città anfibia, sospesa sulla laguna, trasforma l’acqua in terraferma. È un lavoro di ibridazione, una mescolanza che produce urbanità in un delicato e instabile equilibrio tra natura e artificio. Questo fenomeno urbano, insieme visibile e invisibile, è composto da sedimentazioni, memorie, progetti, a volte inimmaginabili e tuttavia legati ad un continuo e contradditorio avanzare. Saranno architetture, infrastrutture, paesaggi. Nuove forme rigeneratrici di figure salde o molli, entro il senso concettuale dell’unità spaziale e della continuità storica. Saranno anche progetti con rilevanza di segnali riconoscibili di un sistema in continua immutabile modificazione che raccoglie la fascinazione e il segreto di Venezia.
Le sperimentazioni didattiche qui raccolte prefigurano architetture per la città, interpretazioni dello spazio e del tempo dei luoghi di Venezia, facendosi utensili di conoscenza e ricerca, di memoria e invenzione. Esse individuano ruoli e figure preziose a costruire rapporti, interni al corpo urbano, tra i suoi luoghi spazio, con l’orizzonte lungo delle geografie lagunari. Misurano distanze, dislivelli, spazi fisici e visivi, costruiscono contesti, episodi urbani significativi entro l’unità formale insulare, sondano unità spaziali e potenzialità figurative. Sono frammenti di un racconto basato sull’uso produttivo di alcune immagini proprie della cultura figurativa veneziana. Sono ricerche sulla figurazione urbana che continuano a suggerire idee per l’architettura della città futura. Principi per tornare a considerare la città una questione di progetto
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
Post-capture data analysis as an aid to the interpretation of ultraviolet-induced fluorescence images
No full textAppropriate 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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