1,721,118 research outputs found
Expression, isolation and characterization of tetrameric haemoglobin as a model to study the Root effect
No full textExpression of beta chain of Trematomous Newnesi haemoglobin Hb1. Expression of the Potomac variant of human haemoglobin. Crystal structure of the twinned crystals of haemoglobin Hb1 from Trematomous Newnesi in the deoxy state at 2.0 Angstrom resolution
The lithic assemblages: production, use and discard
No full textCe chapitre présente les industries lithiques trouvées dans les deux sites principaux, G 1 et
G3, à Gobero. Les assemblages sont analysés en fonction de leurs caractéristiques
technologiques et morphologiques et des différentes phases de la chaîne opératoire
“Ruolo degli elementi trasponibili e delle sequenze di DNA altamente ripetuto nell’evoluzione e nell’adattamento dei pesci e dei molluschi delle regioni polari”,
No full textThe V-SINE as possible origins and targets of some important classes of miRNA in Danio rerio
No full text3D surveying of an eighteenth century merchantman off the Red Sea coast of Saudi Arabia
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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
Identification of a novel helitron transposon in the genome of Antarctic fish
No full textA novel helitron from the genome of the icefish species Chionodraco hamatus, belonging to the Channichthyidae, the most derived Notothenioids family, was isolated, characterized and designated as HeliNoto (8.9 kb). Its ORF was compared to homologous sequences from different species in a comprehensive phylogenetic analysis. For the first time the putative functional domains of a helitron were subjected to a well accurate structural analysis including chromosomal localization. Finally, the distribution of HeliNoto among Notothenioids was investigated
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