1,721,003 research outputs found
Nail changes in lichen planus may resemble those of yellow nail syndrome [27]
No full textNo abstract availabl
Lichen Planus Limited to the Nails in Childhood: Case Report and Literature Review
No full textAbstract: Although nail abnormalities have been reported to occur in 1% to 10% of patients with lichen planus, in children with lichen planus they are rarely mentioned in the literature. An 11‐year‐old boy had a two‐month history of naii dystrophy affecting all the fingernails and the great toenaiis. The naii plates showed longitudinal ridging and thinning as well as onycholysis and distal splitting. There were no cutaneous or mucous membrane abnormalities. A nail biopsy specimen showed hyperkeratosis, hypergranulosis, and acanthosis in the ventral portion of the proximal nail fold and in the nail matrix. A bandlike lymphocytic infiltrate was present in the superficial dermis, and the basal iayer showed vacuolar alterations. A diagnosis of iichen planus was made. Treatment was intramuscular triamcinolone 20 mg once a month for six months. Since 1969 only 13 proved pediatric cases of lichen planus limited to the nails have been reported, including two children with 20‐nall dystrophy and four with idiopathic atrophy of the nails. Copyright © 1993, Wiley Blackwell. All rights reserve
Contact and photocontact dermatitis due to benzydamine hydrochloride
No full textNo abstract availabl
Itraconazole in the treatment of two young brothers with chronic mucocutaneous candidiasis
No full textWe report on two children affected by chronic mucocutaneous candidiasis involving the mouth and all the nails who were successfully treated with itraconazole at 200 mg/day for 2 months. This therapy produced a rapid cure of both candidal nail and mouth infections. The drug was very well tolerated, and routine laboratory monitoring during treatment did not reveal any abnormalities
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
Nail matrix nevi: A clinical and histopathologic study of twenty-two patients
No full textBackground: Because most dermatologists do not regularly perform biopsies of longitudinal melanonychia, even when the pigmentation presents as a single band, the true prevalence of nail matrix nevi is unknown. Objective: Our purpose was to determine the prevalence of nail matrix nevi in white patients with longitudinal melanonychia involving a single digit and to determine whether longitudinal melanonychia caused by a nail matrix nevus can be clinically distinguished from longitudinal melanonychia from other causes. Methods: From January 1989 to December 1994 we performed a nail biopsy on 100 of 128 consecutive white patients who had a single band of 'idiopathic' longitudinal melanonychia. Results: A nail matrix nevus was detected in 22 patients. A junctional nevus was found in 19 specimens and a compound nevus in three specimens. Conclusion: Nail matrix nevi in Caucasian patients are uncommon but not exceptional. The number of nevi presenting with longitudinal melanonychia exceeded that of melanoma. The diagnosis of nail matrix nevi is impossible clinically and always requires histopathologic study. The pathologic features of nail matrix nevi are similar to those of skin nevi except for their architectural pattern, which reflects the peculiar anatomy of the nail unit
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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