1,720,969 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
Late Quaternary evolution and potential for earthquake surface faulting along the Monferrato Arc, N Italy
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Seismic Landscape of the Monferrato Arc
No full textThe Emilia and Lombardia 2012 seismic sequence (two main shocks of Mw ca. 6.0) revamped once again the
scientific debate about the seismic hazard posed by Quaternary tectonic structures of the Po Plain foredeep (e.g., Serva,
1990; Boccaletti et al., 2004; Picotti and Pazzaglia, 2008; Michetti et al., 2012; Galli et al., 2012). The W sector of the
foredeep represents in particular the area with most controversial interpretation in terms of active tectonics and seismic
potential. For instance, in the ITHACA catalogue of capable faults the Monferrato Arc is regarded as a seismogenic
structure with potential for surface faulting earthquakes; while in the DISS database the W Lombardia and Piemonte
are essentially interpreted as areas lacking any evidence of active faulting and seismic sources with Mw > 5.5. In order
to attack this issue, we conducted field investigation, geomorphic analyses and the revision of the large existing
database of seismic reflection profiles covering the study area in order to assess the seismic landscape of the Monferrato
Arc. Our investigations confirm that the Late Quaternary landscape evolution of the South-Central Piemonte is the
result of the interaction between active tectonics and widespread phenomena of river avulsion and piracy, which
affected virtually the whole Piemonte and nearby Liguria region. In fact, these dramatic changes in the regional
drainage network are controlled by shortening and thrust fault growth, which started during Oligo-Miocene times and is
still active with visible deformation rates (Carraro et al., 1995). The development of the Apennines buried thrust fronts
since Miocene give rise to the progressive uplift of the Monferrato and Torino Hills, translated above the depositional
sequences of the Po Plain foredeep. The continuing deformation and displacement of the surficial deposits up to at least
the Mid Pleistocene allow us to regard the buried structures of the Monferrato Arc as potentially capable faults (IAEA,
2010). Therefore, based on the available data, the regional seismotectonic framework for the W Po Plain is comparable
with the one already recognized in the Emilia Arc or in the LombardiaVeneto S Alps (Modena 2012, Brescia 1222,
Verona 1117). The seismic landscape of the Monferrato Arc thus includes potential surface faulting earthquakes, with
M max in the order of 6.0 – 6.5 (Michetti et al., 2012), and accompanied by considerable liquefaction and earthquake
environmental effects
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
Quaternary geology, paleoseismology and earthquake hazards in regions with moderate active tectonics and high vulnerability: the seismic landscape of the Po Plain.
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