1,721,143 research outputs found
Pre-spawning sound production in Mediterranean sand-gobies
No full textThe emission of breeding vocalizations among sand-gobies Pomatoschistus marmoratus, P. canestrini and Knipowitschia panizzae are described. The sounds of these gobies are pulse trains emitted by the male during mating interactions in the nest (prespawning sounds)
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
TC e Diagnostica per immagini nell'urgenza non traumatica di addome e pelvi: grossi vasi. TC ed Angiografia
No full textLa Diagnostica per Immagini delle patologie acute non traumatiche ( dissezioni , emorragie, ostruzioni e rottura di aneurismi ) dei grossi vasi arteriosi addominali ,si avvale principalmente della TC , che può essere integrata dall'arteriografia digitalizzata in casi dubbi. Per quanto riguarda i grossi vasi venosi, vena cava e vene iliache, la patologia di tipo tromboembolico viene compiutamente caratterizzata dalla integrazione tra cavografia e TC
In vitro corrosion study by EIS of an equiatomic NiTi alloy and an inplant grade ASTM F138 stainless steel.
No full textSound production during courtship and spawning among freshwater gobiids (Pisces, Gobiidae)
No full textIn this paper the breeding sound production among gobiids is reviewed. Results of recent comparative studies on both pre-spawning (courtship) and spawning sound production in the three italian freshwater gobiids are reported. A significant production of sounds associated to mating was discovered in two of these species. Furthermore, the quantification of acoustic behaviour across the spawning period (i.e., from the beginning of oviposition until the departure of the female from the male's nest) revealed a pattern of spawning sound production similar in the two species
Alendronate–hydroxyapatite nanocomposites and their interaction with osteoclasts and osteoblast-like cells.
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