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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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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The functional morphology of the skin during the appearance of drug iduced eruptions: a precursor study with light and electron microscope
No full textIn our study 25 patients clinically diagnosed as having cutaneous drug reactions were examined with light microscopy and 11 of them with both light and electron microscopy. The results are summarized into the following: 1. Clinical criteria are not sufficient enough to establish the diagnosis of drug eruptions. In our study, only 23 out of 25 patients (92%) were proved to manifest drug eruptions. 2. The cutaneous adverse drug reactions are not encountered in female group as far as 14 patients were men (60,86%) and 9 women (39,13%). Our findings were not in agreement with the majority of literature. 3. The mean age of our patients with drug eruptions was 49,47 (15-80) years. The mean age of the male patients was 46,42 (15-78) years while of the female patients, 54,22 (17-80) years. 4. Regarding the distribution, drug eruptions were either of generalized type (13,04%) or of patchy type (17,39%) or were localized on face - scalp (21,73%), arms (34,78%), trunk (56,52%), buttocks (4,3%) and legs (30,43%). 5. The incriminating drugs of our study were: antibiotics (39,13%), non-steroidal anti-inflammatory agents (13,04%), chemotherapeutic agents (13,04%), anticonvulsants (8,6%), systemic corticosteroids (8,6%), antifungal agents (4,3%), anticoagulants (4,3%) heavy metals (4,3%) and allopourinol (4,3%). 6. The clinical patterns of drug eruptions seen in our study, were the following: maculopapular or morbilliform eruptions (17,39%), acneiform or pustular eruptions (13,04%), fixed drug eruption (13,04%), psoriasiform eruptions (8,6%), vasculitis (8,6%), urticaria (4,3%), lichenoid eruptions (4,3%), vesicular or bullous eruptions (4,3%), eczematous reactions (4,3%), purpura (4,3%), drug-induced alopecia (4,3%), Stevens-Johnson syndrome (4,3%) and toxic epidermal necrolysis (4,3%). 7. Histopathological examination of our study’s drug eruptions showed similar histologic findings to the skin diseases that they resemble clinically. Light microscopy histological features of each case were assessed and classified in relation with the degree of probability of drug eruptions’ histological diagnosis, into the following categories: a) definite (13,04%), b) probable (13,04%), c) possible (13,04%), d) diagnosis of skin disease with no findings compatible to drug aetiology (26,08%), and e) non-specific findings (34,78%).Τα συμπεράσματα τα οποία προέκυψαν από την μελέτη 25 ασθενών μας με εξανθήματα που θεωρήθηκαν φαρμακευτικής αιτιολογίας και εξετάσθηκαν με οπτικό μικροσκόπιο και οι 11 εξ΄αυτών με οπτικό και ηλεκτρονικό μικροσκόπιο, συνοψίζονται στα εξής: 1. Τα κλινικά κριτήρια δεν επαρκούν για τη διάγνωση των φαρμακευτικών εξανθημάτων γιατί ενώ βάσει αυτών επιλέχθηκαν 25 ασθενείς, μόνο στους 23 (ποσοστό 92,0%) πιστοποιήθηκε τελικά η διάγνωση του φαρμακευτικού εξανθήματος. 2. Η συχνότητα εμφάνισης των φαρμακευτικών εξανθημάτων δεν εξαρτάται από το φύλο, αφού από το σύνολο των 23 ασθενών μας με φαρμακευτικό εξάνθημα, οι 14 ήταν άνδρες (60,86%) και οι 9 θήλεις (39,13%), ευρήματα που δεν είναι σε συμφωνία με την πλειονότητα της βιβλιογραφίας. 3. Ο μέσος όρος της ηλικίας των ασθενών μας με φαρμακευτικό εξάνθημα ήταν 49,47 (15-80) έτη. Οι άρρενες ασθενείς είχαν μέσο όρο ηλικίας τα 46,42 (15-78) έτη ενώ τα θήλεα 54,22 (17-80) έτη. 4. Η νόσος είχε γενικευμένη μορφή (13,04%) ή διάσπαρτη μορφή (17,39%), ή ήταν δυνατό να εντοπίζεται στο πρόσωπο και το τριχωτό της κεφαλής (21,73%), στα άνω άκρα (34,78%), στον κορμό (56,52%), τους γλουτούς (4,3%) και τα κάτω άκρα (30,43%). 5. Τα φάρμακα που θεωρήθηκαν υπεύθυνα για την πρόκληση των φαρμακευτι-κών εξανθημάτων στην μελέτη μας ήταν τα αντιβιοτικά (39,13%), τα ανοσοκατασταλτικά (13,04%), τα μη-στεροειδή αντιφλεγμονώδη (13,04%), τα αντιεπιληπτικά (8,6%), τα συστηματικά κορτικο-ειδή (8,6%), τα αντιμυκητιασικά (4,3%), τα αντιπηκτικά (4,3%), τα σκευάσματα σιδήρου (4,3%) και η αλλοπουρινόλη (4,3%). 6. Οι κλινικές εικόνες με τις οποίες εκδηλώθηκαν τα φαρμακευτικά εξανθήματα των ασθενών μας ήταν: τα κηλιδοβλατιδώδη ή ιλαροειδή εξανθήματα (17,39%), τα ακμοειδή ή φλυκταινώδη εξανθήματα (13,04%), το σταθερό φαρμακευτικό εξάνθημα (13,04%), το ψωριασιόμορφο εξάνθημα (8,6%), η αγγειίτιδα (8,6%), η κνίδωση (4,3%), το λειχηνοειδές φαρμακευτικό εξάνθημα (4,3%), το φυσαλιδο-πομφολυγώδες εξάνθημα (4,3%), το εκζεματικό φαρμακευτικό εξάνθημα (4,3%), η πορφύρα (4,3%), η φαρμακογενής διάχυτη αλωπεκία (4,3%), το σύνδρομο Stevens-Johnson (4,3%), η ερυθροδερμία (4,3%) και η ΤΕΝ (4,3%)
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