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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
Valutazione delle soglie sensitive ed algogene muscolari mediante diverse modalità di stimolazione elettrica
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Seasonal effects on some serum and muscle enzymes of catfish (Ictalurus melas) and common carp (Cyprinus carpio)
No full textTraining systems for high-density cherry orchards in Trento province
No full textIn spring 2010, a high-density cherry trial was established comparing three
training systems (TSs) (tall spindle axe (TSA) (2604 trees ha-1), bi-axis (2083 trees
ha-1) and upright fruiting offshoot (UFO) (1736 trees ha-1)) with two sweet cherry
(Prunus avium L.) cultivars (‘Kordia’ and ‘Regina’) grafted on two rootstock genotypes
(GiSelA®5 (Gi5) and Piku1(S) (P1)). After 7 years, tree size, was similar among all the
TSs. ‘Kordia’ had larger tree size than ‘Regina’. Among rootstock genotypes, tree size
was larger with P1 compared to Gi5. Bi-axis trees had higher cumulative yield (CY)
and cumulative yield efficiency (CYE) compared to trees trained as TSA and UFO
systems. On a hectare basis, the TSA had similar CY to bi-axis, both significantly higher
than UFO system. Trees on Gi5 had higher CY and CYE than trees on P1 and ‘Kordia’
had higher CY and CYE than ‘Regina’. TSs did not affect fruit weight. ‘Regina’ had
bigger fruit size compared to ‘Kordia’ due to the significant lower number of fruits on
the trees. Fruits on Gi5 had higher fruit weight compared to P1 despite having a
significantly higher yield. ‘Kordia’ on Gi5 trained to a bi-axis system had the best
combination of high yield and fruit size. Fruit soluble solids were higher with UFO
than TSA and bi-axis systems. ‘Regina’ had higher soluble solids and firmness
compared to ‘Kordia’, which is likely due to the lower CY obtained by ‘Regina’
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