1,722,356 research outputs found
Radiology and histopathology of the bent limbs in campomelic dysplasia: implications in the aetiology of the disease and review of theories.
No full textThe study of the bent bones in a case of campomelic dysplasia and a review of the literature suggest a repair process at the site of angulation. A theory that can explain most of the features of the disease is presented; it supposes a damage of the cartilage model at the midshaft, followed by a fracture of the thin bone collar in the earlier stage of ossification of the diaphysis
Oto-Palato-Digital syndrome in four generations of a large family.
No full textA new large family, affected by O-P-D syndrome is reported. Nine members in four consecutive generations have been studied. Computerized tomography study of spine and skull showed abnormalities to be confined to mesodermal derivates, while nervous structures were normal. Transmission pattern may be X-linked with intermediate expression in the female or autosomal dominant with sex limitation of expression
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Angel-shaped phalanges in brachydactyly C: a case report, and speculation on pathogenesis. Pediatr Radiol. 2005 May;35(5):535-8. Epub 2004 Nov 23
No full textAn unusual form of spondyloepiphyseal dysplasia with advanced carpal and spinal end-plate ossification mimicking comp-mutation-like multiple epiphyseal dysplasia.
No full textWe present a child with irregular ossification of
tubular bone epiphyses, short bones, and spine. The
radiographic evolution of bones undergoing endochondral
ossification was followed from the age of 1 year 9 months to
6 years. The unusual features demonstrated in this child
made classification difficult: pseudoachondroplasia was
excluded because no mutations of the COMP gene were
found. Considering the evolution of the radiographic
appearances, the most likely diagnosis would seem to be
an unusual form of spondyloepiphyseal dysplasia, mimicking
some aspects of multiple epiphyseal dysplasia. Endochondral
ossification was diffusely altered with a mixture of
epiphyseal ossification delay associated with acceleration
and early fusion. This case was a unique presentation within
the family, suggesting a mutation in the affected child
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