1,721,059 research outputs found
Rapporto di Valutazione Dicembre 2008
No full textRelazione annuale del Nucleo di Valutazione dell'Università di Bologna, dove L. Altieri cura in particolare le parti dedicate alla valutazione della mobilità internazionale degli studenti (in entrata e in uscita) e della ricerca scientitifica: in particolare l'andamento dei finanziamenti della ricerca secondo le varie fonti di provenienza; l'accesso delle unità bolognesi ai fondi PRIN, l'improdduttività di - marginali- ricercatori, le ricadute della Peer Revie
Estimating the biodiversity of a system with covariates and dependence structures
No full textEntropy is widely used in ecological and environmental studies, with data
often presenting complex interactions. Difficulties arise when the interest is to link
such measure to available covariates or data dependence structures, as all existing
approaches to entropy estimation assume independence. We focus on improving the
estimation of the probabilities of the species in biodiversity studies, accounting for
any data dependence and correlation. Estimating entropy is then straightforward and
may be an informative index of a system’s biodiversity. An application is presented
about the biodiversity of rainforest tree data
The Treatment of Scabies in Ferrara (Italy) in the 19th Century
No full textThis work represents a continuation of our efforts to
highlight the therapeutic approaches used in Ferrara in
teating the typical illnesses of the l9th century such as
tuberculosis, scrofula, syphilis and cholera. We describe
approaches used against scabies, the remedies reported in
Campana's and Nigrisoli's Pharmacopoeia ferrarese as well as the other efficacious teafrnents employed in Ferrara in the 19th century. One of the most renowned remedies, Pommade
d'Helmeric, is still used today
The Treatment of Cholera in Ferrara (Italy): the European epidemic scenery in the first half of the 19th century
No full textThis work describes the cures and the remedies used for the cholera that characterised the 19th century in Europe. Ferrara was taken as a model to analyse the illness in comparison with European cities like Vienna, Paris, and the nearest Bologna. The period under investigation starts from the first moment the disease appeared (1830) to 1867. Several differences were found between continental and British methods of fighting the disease. The British physicians were much more on the guard thanks to their great colonial experience, anticipating today’s methods. In the Papal States, Ferrara, Bologna and Rome, of course, followed Paris and Vienna's tendencies of the time
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
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