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Correlazione tra biopsia mirata della portio ed esame istologico su pezzo operatorio nell'ambito della prevenzione del cervicocarcinoma
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Anatomical study of the muscles of the shoulder, arm and forearm in three species of wild birds
No full textIn the past many authors have focused on the anatomical study of the wing in order to correlate anatomical details with the peculiarities of flight in different species. In spite of the limited information about the anatomy of the thoracic limb in European avian species, we decided to investigate these structures in three species presenting a different kind of flight spread throughout the Italian territory: the Grey Heron (Ardea cinerea), the Eurasian Buzzard (Buteo buteo) and the Common Kestrel (Falco tinnunculus).
Therefore we performed a stratigraphic dissection of the wing in different subjects of the species examined.
Comparing the results of this study with those found in literature for similar species, we observed many peculiarities which have not previously been described. The most relevant was that involving the Coracobrachialis caudalis muscle, the scapular and humeral anchor and the Extersor radialis carpi muscle. The Coracobrachialis caudalis muscle in the Grey Heron is composed of two different heads instead of the typical one observed by Vanden Berge (1970) in other Ciconiiformes. Regarding the scapular and the humeral anchor the different development found through the species suggests a correlation between these structures and the kind of flight. Concerning the Extersor radialis carpi muscle, the differences we found in the number of bellies could support Nair’s hypothesis (1954) about a correlation between the heads of this muscle and different type of flights such as soaring of flapping. These deductions should be confirmed by further studies in wind tunnel and electromyography
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
Anatomical study of some muscles of the shoulder, arm and forearm in three species of wild birds
No full textAppropriate 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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