1,720,991 research outputs found
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
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
Application of the OhmMapper resistivity-meter to detect the theatre of Sentinum Roman town by using 3D resistivity model
No full textTh e application of geophysical methods to investigate the
near-surface soil layers containing anthropic products has
been recognized as an important element of archaeological
research by the international community.(Clark, 1996).
Geophysics can delineate quickly the presence of archaeological
structures without invasive stratigraphic excavation.
In particular, resistivity surveying can be used to understand
the geometry and depth of the anthropic element buried in
the subsoil, due to the diff erent resistivity properties between
potential archaeological targets and the surrounding environment
(Loke, 2004).
Geoelectrical data are traditionally acquired with a galvanically-
coupled resistivity system. Placing electrodes in the
soil is the greatest practical diffi culty for it is time consuming
and prevents rapid investigation, especially in the case of a
three-dimensional survey. Th is problem can be avoided using
the new OhmMapper (Geometrics Inc.) capacitive-coupled
resistivity system designed to be pulled along the ground as
a streamer that realizes an almost continuous profile.Th e regular urban nature of the settlement of Sentinum
(Sassoferrato municipality, Ancona, Italy), typical of cities
planned by the Emperor Augustus (1st century BC-1st century
AD), has been confi rmed by magnetometric investigations
carried out some years ago (Bottacchi and Hay, 2008).
Nevertheless, one paradigm of Roman cities, the theatre, is
missing from this city plan obtained by means of geophysical
prospection.
Th e ultimate objective of this study is to detect the theatre
of Sentinum using a 3D resistivity model created by
OhmMapper. www.cairn.info/revue-archeosciences-2009-1-page-267.htm
L’acqua nelle murature del Canopoleno nel quadro della circolazione sotterranea in centro storico: evidenze geologiche, storiche e geofisiche
No full textLa monografia rende pubblici gli esiti di una ricerca a tutto campo condotta sul complesso del cosiddetto Canopoleno a Sassari, sorto nei primi decenni del Seicento come nuova Casa professa dei Gesuiti, e divenuto recentemente sede della Pinacoteca Mus’a.
Gli studi qui raccolti offrono un resoconto degli aspetti artistici, storico-documentari, geologici riguardo alla natura del terreno e ai materiali tradizionali locali, nonché quelli tecnici sui materiali e sui metodi costruttivi impiegati, sui restauri e, infine, gli aspetti critici sugli attuali problemi di conservazione e valorizzazione. Le ricerche sono state raccolte, patrocinate e condotte dall’allora Soprintendenza per i Beni Architettonici e il Paesaggio e per il Patrimonio Storico, Artistico ed Etnoantropologico per le Province di Sassari e Nuoro negli anni 2002-2008.
Le analisi strumentali e le ricerche storiche hanno avuto, come esito finale, la ricostruzione delle vicende edificatorie e di restauro di uno degli edifici monumentali del centro storico della città, e la raccolta di informazioni relative al trattamento dei materiali tradizionali in opera, sottoposti a degrado a causa dell’umidità di risalita. Gli studi hanno coinvolto altresì le Università degli Studi di Sassari e di Cagliari per quanto riguarda la caratterizzazione del suolo e dei materiali storici e il Politecnico di Milano per le indagini sulle murature e il monitoraggio microclimatico, e per l’approfondimento dell’evoluzione storica a partire dall’insediamento dei Gesuiti in Sardegna
Studio di potenziali acquiferi mediante indagini geoelettriche nel villaggio di itigi (Singida - Tanzania)
No full texthttp://www.fe.infn.it/u/mantovani/CV/Proceedings/Colonna_08.pd
- …
