1,720,988 research outputs found
Orange-brown chromonychia and Kawasaki disease: A possible novel association?
No full textA 4-year-old girl with clinical and laboratory signs of Kawasaki disease (KD) was hospitalized and given intravenous immunoglobulin plus aspirin therapy, with rapid defervescence and clinical improvement, and was discharged 48 hours after admission. At the time of her follow-up echocardiography on day 14, orange-brown pigmentation of the nail beds was noticed and confirmed with dermoscopy. No clear association between KD and orange-brown chromonychia has been demonstrated, although reports and case series suggest a possible link between these two entities. We suggest that this particular finding might be encompassed in late (subacute) changes of extremities as part of KD diagnostic criteria
Prepubertal melanoma
No full textThe incidence of prepubertal melanoma is not raising in children, unlike adolescent and adult (24). Its incidence therefore remains so low that no center is able to do statistics only based on its cases. Over the past 40 years in five Italian Pediatric Dermatology centers 15 cases of melanoma in children aged under 12 years were observed, 4 of which associated with large or multiple congenital melanocytic nevi. The latter, including two cutaneous melanomas arising on congenital melanocytic nevi and 2 meningoencephalic melanomas, started early - average age at diagnosis 18 months - and had poor prognosis quoad vitam. The 11 melanomas arising on normal skin - 8 cases - or associated with small congenital - 1 case - or acquired - 2 cases - melanocytic nevi started at a later age - average age 9.2 years - and had a good prognosis despite average thickness of 2 mm and lymph node involvement in 3/11 cases. These two categories of prepubertal melanoma, though so different from each other, shared the same nodular or ulcerative non specific, often amelanotic clinical appearance. Therefore, they were different and more difficult to be diagnosed as compared with pigmented and usually initially superficial spreading adult melanoma
Effective and safe use of benzyl benzoate in young children at the same concentrations as adults: A matter of vehicle?
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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
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