1,721,056 research outputs found

    Earwax and topic alpha-tocopherol acetate: The cerumenolytic action.

    No full text
    Objective: Cerumen (ear wax) is a physiologic secretion of ceruminous and sebaceous glands of the external ear canal. Its main function is lubricate the external auditory canal, creating a humid and warm environment. Cerumen usually, is expelled outside the ear canal to the movements of the jaw. Sometimes, however, in some people due to the shape of the ear canal or due to inappropriate cleaning maneuvers, ear wax can accumulate, causing an obstruction (plug). When treatment is indicated, there are three recommended ear wax removal methods: irrigation, manual removal, cerumenolytic agents. Methods: For the study 137 patients were enrolled, age range 6-80 years old, mean 46.7, the subjects are divided in three groups standing the age and created a score in relation to the ear wax plug (0: Complete obstruction of external auditory canal; 1: Ear wax plug obstructing 2/3 of external auditory canal; 2: Ear wax plug obstructing 1/3 of external auditory canal; 3: Absence of ear wax). Each patient underwent topic treatment with alpha tocopherol acetate and polydecene (Filme Oto Spray), 3 puffs each external auditory canal, 3 times/day for 7/14 days. The aim of the treatment was to completely remove the ear wax plug in 7 days (primary endpoint) or in 14 days (secondary endpoint). Results: Children and adolescent patients reached endpoints more than adults and older patients, with statistical significance (p<0.05). Conclusion: The use of the composition of alpha-tocopherol acetate (vitamin E) and polydecene (Filme Oto Spray) allows to cleaning of the auditory canal and the complete visualization of the tympanic membrane, 7 days after the first application

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Full text link
    The 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 link
    We 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
    corecore