1,720,978 research outputs found
Venture Capital pubblico-privato: stato dell'arte, condizioni e opportunità di sviluppo
No full textIl Venture Capital pubblico-privato, già ampiamente discusso in letteratura in relazione ai suoi punti di forza e di debolezza, è stato recentemente rilanciato dall' Unione Europe
Promuovere la competitività: quale ruolo per la PA?
No full textPromuovere la competitività è oggi il tema immanente in ogni occasione di dibattito politico, economico e social
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
Proposal of Pest Risk Analysis (PRA) application within limited territories
No full textThe Pest Risk Analysis (PRA) protocol, developed by EPPO, was applied in Riserva San Massimo, SCI IT2080015 (Gropello Cairoli, PV ‐ Italy), that hosts a black alder wood (habitat 91E0*) in which populations of Solidago gigantea Aiton and Amorpha fruticosa L. have been surveyed. Results confirm that S.gigantea and A.fruticosa mostly invade the habitats where native species competition is lower and anthropic disturbance intense. The high naturalness and biodiversity of the habitat 91E0*
effectively counteracts IAS spread within itself, where vegetation is thicker and anthropic disturbance low. IAS
population density is medium limited in wood clearings and at its edges. However, Riserva San Massimo plant
biodiversity is seriously threaten by S.gigantea. PRA application in a limited area represents a valid tool to determine
the level of risk of invasion associated with alien species and to update the Reserve Management Plan
actions against them
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
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