1,721,319 research outputs found
Prime esperienze di ferratura correttiva del piede con talloni atrofici con l’impiego di un ferro di nuova concezione (ferro GA.CI)
No full text
Su un insolito caso di istiocitosi con cellule di Langerhans della base cranica: aspetti con Tomografia Computerizzata e Risonanza Magnetica
No full textDescrizione di un insolito caso di istiocitosi a cellule di Langherhans della base cranica
No full textGoing 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
Applicazione del sistema a schermi asimmetrici “Insight” nella radiografia toracica del cane
No full textVariations 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
A simultaneous assay for oxidative metabolism and adhesion of human neutrophils. Evidence for correlations and dissociations of the two responses.
No full textAn assay method for the simultaneous evaluation of the oxidative metabolism and adherence of human neutrophils is described, together with certain specific applications. Incubations were performed in serum-coated microtiter plates, where oxidative metabolism was measured as O2- release and, after washing out the nonadherent cells, the adhesion was measured as activity of acid phosphatase. Three agonists tested in this system--opsonized zymosan, concanavalin A, and N-formyl-methionyl-leucyl-phenylalanine--induced both activation of O2- release and cell adhesion, but the two functions had time course and dose dependence patterns that varied depending on the stimulant. Particularly with concanavalin A, O2- release and adhesion response were markedly dissociated; this lectin at low doses increased neutrophil adherence without triggering any O2- production, whereas at high doses it increased both O2- production and adherence. Anti-integrin monoclonal antibodies did not affect adhesion induced by low-dose concanavalin A but inhibited the adhesion induced by the other tested agonists. Adhesion and O2- production were also found to be differentially affected by the NADPH oxidase inhibitor diphenylene iodonium, the sulfhydryl reagent N-ethylmaleimide and the A2 agonist adenosine, indicating that these neutrophil responses have various transductional pathways that also depend on the type of stimulus
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
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