1,720,994 research outputs found
Welfare locale e innovazioni istituzionali. Processi di attivazione in Friuli-Venezia Giulia
No full textAn internalin a probe-based genosensor for Listeria monocytogenes detection and differentiation
No full textInternalin A (InlA), a protein required for Listeria monocytogenes virulence, is encoded by the inlA gene, which is only found in
pathogenic strains of this genus. One of the best ways to detect and confirm the pathogenicity of the strain is the detection of
one of the virulence factors produced by the microorganism.This paper focuses on the design of an electrochemical genosensor
used to detect the inlA gene in Listeria strains without labelling the target DNA. The electrochemical sensor was obtained by
immobilising an inlA gene probe (single-stranded oligonucleotide) on the surfaces of screen-printed gold electrodes (Au-SPEs)
by means of a mercaptan-activated self-assembled monolayer (SAM). The hybridisation reaction occurring on the electrode
surface was electrochemically transduced by differential pulse voltammetry (DPV) using methylene blue (MB) as an indicator.The
covalently immobilised single-stranded DNA was able to selectively hybridise to its complementary DNA sequences in solution
to form double-stranded DNA on the gold surface. A significant decrease of the peak current of the voltammogram (DPV) upon
hybridisation of immobilised ssDNA was recorded.Whole DNA samples of L. monocytogenes strains could be discriminated from
other nonpathogenic Listeria species DNA with the inlA gene DNA probe genosensor
Napoli. La città, la squadra, gli eroi: dai primi idoli a Maradona
No full textQuesto libro si propone di analizzare l’intreccio di relazioni che storicamente si è dato nella città di Napoli intorno alla squadra di calcio e ad alcuni suoi calciatori simbolo. Un itinerario interpretativo che dai primi idoli del calcio partenopeo, Sallustro e Sentimenti II, che abitano la Napoli del fascismo e dell’immediato dopoguerra, si snoda negli anni della città di Luís Vinício e Achille Lauro, per poi giungere agli anni Sessanta di Antonio Juliano, alla storia cittadina che ha fatto da contesto alla carriera di Beppe Bruscolotti, fino al mitico Napoli di Maradona. Ognuno di questi campioni ha segnato, a suo modo, la storia della squadra azzurra, ha contribuito alla produzione dell’immaginario della città e ha preso parte ad un certo modo di fare calcio, di tifare e di stare nella società locale
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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