1,720,960 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
Carcinoma basocellulare nel genere femminile: indagine clinico-epidemiologica di una neoplasia sorprendentemente prevalente al femminile nelle decadi basse e medie della vita
Full text linkDa ormai diversi anni, un crescente numero di studi sul carcinoma basocellulare ha messo in luce un costante aumento dell’incidenza di questo tumore nella popolazione generale [1-5]. Questo lavoro si prefissa di delineare gli aspetti clinico-epidemiologici del carcinoma basocellulare mediante un’analisi retrospettiva della popolazione afferente presso la Clinica Dermatologica della Fondazione IRCCS Policlinico San Matteo di Pavia, proponendo quindi un’indagine sull’arco degli ultimi 10 anni, incentrata sulla frequenza di questa neoplasia nel sesso femminile. Da tale indagine emerge in modo chiaro come in quest’ultimo decennio le donne giovani-adulte trattate per carcinoma basocellulare nella nostra Clinica siano aumentate in modo considerevole e come, contrariamente alle età più avanzate, nelle decadi basse il genere femminile sia maggiormente rappresentato
LYMPHOCYTE-PROLIFERATION AND SYNTHESIS OF IGE INVITRO IN ATOPIC SUBJECTS - REGULATORY ROLE OF BETA-ADRENERGIC RECEPTORS
No full textkoamabayili/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
Adult ki-1-positive large cell anaplastic lymphoma presenting with skin lesions.
No full textWe describe an adult case of anaplastic large cell lymphoma who presented with nonepidermotropic skin lesions histologically simulating malignant histiocytosis. The patient later developed systemic symptoms and peripheral lymphadenopathy. B- and T-cell markers and the Leu-M1 antigen were absent from immunohistochemically investigated skin lesions and lymph nodes. The expression of Ki-1 antigen by most tumor cells was the distinctive immunologic character of this disorder which helped to clarify the pathological diagnosis. The unusual clinical, pathologic, and immunologic features of this patient represent the adult counterpart of a clinicopathologic syndrome, so far described in children and adolescents, of Ki-1 lymphoma presenting with skin lesions and peripheral lymphadenopathy. Prompt recognition of this disorder and early delivery of chemotherapy seem important to improve prognosis
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