1,720,977 research outputs found
Functionless non chromaffin retroperitoneal paraganglioma causing cauda equina compression
No full text
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
Ingestione di corpi estranei in età pediatrica
No full textL’ingestione di corpi estranei (c.e.) è un fenomeno molto comune soprattutto in età pediatrica.Scopo di questo lavoro è quello di presentare la nostra casistica di ingestione di c.e. tra il 1996 e il 2005 con i tipi di oggetti ingeriti e le relative procedure terapeutiche e di proporre un algoritmo terapeutico alla luce della letteratura e della nostra esperienza
Prenatal diagnosis of congenital defects of the abdominal wall.
No full textSono esaminati 22 casi di exonfalo e 16 di gastroschisi, registrati dal Centro di epidemiologia e prevenzione delle malformazioni congenite del Veneto. Il tasso di malformazioni associate risulta del 25 % per la gastroschisi e del 40 % per l 'onfalocele. Sono descritti criteri per una diagnosi prenatale accurata delle due malformazioni e viene discusso l'approccio al feto malformato
SCELTA TERAPEUTICA NELLE EMORRAGIE INTESTINALI PEDIATRICHE: UN CONTROVERSO CASO NEONATALE
No full textGastrointestinal bleeding in infants and children is an uncommon and potentially serious problem, but fortunately is usually limited and most cases resolve with close medical attention. The therapeutic criteria is often difficult particularly in neonates. In this work we examine the case of a neonate with serious gastrointestinal bleeding and the delayed treatment for diagnostic difficulties
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
- …
