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Rilevamento di differenti genotipi di Actinobacillus actinomycetemcomitans nel cavo orale (I classificato sessione poster)
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Ruolo della PCR nel rilevamento di differenti genotipi virulenti di Actinobacillus actinomycetemcomitans nel cavo orale, mediante sistema integrato colturale/molecolare, risultati preliminari
No full textPCR real time con sonde FRET per il rilevamento e la quantificazione dei genotipi 652 a JP2 di Actinobacillus actinomycetemcomitans nel cavo orale
No full textActinobacillus actinomycetemcomita ns (Aa) è un coccobacillo gram negativo associato a malattie infettive di tipo odontostomatologico, ma anche a patologie di natura non orale (endocarditi, polmoniti). Sotto il profilo odontostomatologico, la parodontite aggressiva causata da Aa si presenta con una notevole perdita di attacco gengivale e di supporto osseo alveolare che può portare alla precoce
perdita dell’elemento dentario.Tra i diversi fattori di virulenza descritti , Aa è in grado di produrre una leucotossina, (Ltx) che puo’ presentare diversi livelli di espressione a seconda dell’ organizzazione del promotore dell’operone ltx . Nel genotipo JP2 (altamente leucotossico) è presente una delezione pari a 530 bp, mentre nel genotipo 652 (mediamente leucotossico) è assente (Hritz et a l . 1996)
Variations on the Author
Get PDF“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
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