1,720,955 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
Una intossicazione collettiva da Clitocybe amoenolens riconducibile alla sindrome acromelalgica
No full textViene riportato il caso di un’intossicazione collettiva provocata dall’ingestione di Clitocybe amoenolens, verificatasi nel settembre del 2002 ad Avezzano (AQ). Vengono presi in esame aspetti relativi alla cronologia dei casi riscontrati negli anni in questo territorio, alla tassonomia della specie in questione e al quadro clinico dell’intossicazione . Da quanto risulta, si tratterebbe del primo caso documentato di avvelenamento da C. amoenolens in Italia.Here we report a case of collective mushroom poisoning caused by Clitocybe amoenolens, which occurred in September 2002 in the city of Avezzano (AQ) - Abruzzo, Italy. Eight individuals were affected and asked for medical care; for one of these the hospitalisation was necessary. All the patients referred the same violent burning pain and oedema to the extremities of the limbs, more or less severe according to the quantity of mushrooms ingested, suggesting the diagnosis of erythromelalgia (acromelalgic syndrome). This syndrome is well characterized by the late appearance of the symptoms, the absence of early gastro-enteric symptoms, its duration and the inefficacy of common analgesics. The pain is worsened by the heat and soothed by cold. emphasized by heat and contact while they are reduced by cold. No pathologic variations of physiological parameters are observed. The syndrome resolves spontaneously, but over a very long time period (>3 months). The acromelic acids contained in Clitocybe acromelalga, the Oriental species (Japan and South Korea) that produces the same toxic damage, are suspected culprits of this syndrome. Here, we consider the aspects concerning the chronology of the cases found in this territory, the taxonomy of the mushroom species and the clinical picture of the toxic syndrome. This is seemingly the first documented case of Clitocybe amoenolens poisoning in Italy
I funghi del Monte Salviano
No full textViene fatto il punto sulla consistenza della biodiversità fungina, limitatamente ai macrofunghi, della riserva naturale del Monte Salviano, rilevata nel corso di circa quindici anni di indagini. E’ stata registrata la presenza di 288 specie, 44 delle quali Ascomiceti e 244 Basidiomiceti. La composizione della flora micologica rispecchia la situazione vegetazionale costituita da un mosaico di elementi residuali del fitoclima mediterraneo, precedenti il prosciugamento del bacino lacustre del Fucino, con presenze steppiche e specie esotiche introdotte con rimboschimenti di conifere. Alcune specie, quali Leucopaxillus lepistoides, Tricholoma tridentinum var. cedretorum, Agaricus jodosmus, Cortinarius herculeus e Radiigera atrogleba hanno avuto solo poche segnalazioni sul territorio italiano; mentre due, Gamundia lonatii e Gamundia hygrophoroides, sono note esclusivamente in questa area che rappresenta il loro locus typicus. Nel complesso la check-list fa registrare almeno 58 nuove specie alla flora micologica abruzzese. Vengono infine fornite due note tassonomiche in riferimento alle raccolte di fenotipi di Morchella atrotomentosa e M. pseudoumbrina, e di Neournula pouchetii.The check-list of the macrofungi from the natural reserve of Mt. Salviano includes 288 species, with 44 Ascomycetes and 244 Basidiomycetes. Fifty-eight of them have not hitherto been recorded for the Abruzzo’s mycoflora. The relation of the mycoflora with peculiar vegetational situations within the area is discussed and for three taxa (Morchella atrotomentosa and M. pseudoumbrina, and Neournula pouchetii.) two short taxonomic notes are provided. Two species, Gamundia lonatii and Gamundia hygrophoroides, previously described as new species from this very area, do not seem to have been recorded outside it
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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