1,720,983 research outputs found
Endobronchial angioleiomyoma. Diagnostic difficulties of a rare lung neoplasm
Full text linkAngioleiomyoma is a benign soft tissue tumor which rarely develops in the respiratory tract. Here we report a case of a 51-year-old female with an angioleiomyoma developed in the left upper lobar bronchial branch and extended to the left main stem bronchus, causing non-specific symptoms, and not visible on the chest x-ray exam. The suspected diagnosis was established by High-Resolution Computed Tomography (HRCT) and confirmed by the histological evaluation of the endoscopically removed lesion
Proteus syndrome: a brief review
Full text linkLa sindrome di Proteo (Proteus) è una rara sindrome di mosaicismo caratterizzata
da aree localizzate di eccessiva crescita rispetto ad aree controlaterali
normali. In questa review riassumiamo i meccanismi eziopatogenetici
responsabili delle anomalie di crescita tessutale e i criteri diagnostici utilizzati
per la corretta formulazione della diagnosi.The Proteus syndrome is a rare mosaic syndrome, characterized by regional
or localized areas of excess growth compared to equivalent normal
parts of the body. In this review, we summarize the etiopathogenetic mechanisms
responsible for tissue overgrowth anomalies and the diagnostic criteria
utilized for the correct formulation of its diagnosis
Hydrophilic gold nanoparticles as multimodal agents for plasmonic nanomedicine. Salamone TA., B. Pennacchi B, Mercurio M, Cerra S, Marotta S, Mrmic S, Alimandi M, Visco V, Taurino M, Trivedi P, I. Fratoddi I, Anastasiadou E
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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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