1,721,031 research outputs found
Metamorfosi e peregrinazioni di Io. Dalla pittura vascolare alla tragedia, e ritorno
No full textL'evoluzione iconografica della rappresentazione di Io nella pittura vascolare, a seguito della pubblicazione del "Prometeo incatenato" di Eschil
rec. a Pacifico Massimi, Hecatelegium I. Edizione critica, traduzione, commento a cura di Alessandro Bettoni; premessa di A. Minarini, Bologna 2021, "Paideia" 78, 2023, 714-720
No full textRecensione dell'edizione critica dell'Hecatelegium I di Pacifico Massimi a cura di Alessandro Betton
Due note alla Vita Persi del Vind. 3094 (XV sec.)
No full textIl presente articolo esamina una testimonianza finora trascurata della tradizione biografica
su Persio, la Vita Persi conservata nel Wien, Österreichische Nationalbibliothek (ÖNB),
Cod. 3094. Questo manoscritto di origine tedesca, redatto tra il 1493 e il 1496, contiene al
f. 214v una Vita Persi di epoca umanistica, scritta a Worms l’1 novembre del 1494.
Sebbene l’autore della biografia resti ignoto, il testo si colloca chiaramente nell’alveo
della tradizione derivata dalla Vita attribuita al grammatico Valerio Probo di Beirut (I sec.
d.C.), pur presentando innesti da fonti non sempre identificabili. Di tale Vita Persi
Vindobonensis, della quale si fornisce una trascrizione integrale quanto più possibile
rispettosa dell’ortografia del manoscritto e suddivisa in undici paragrafi per agevolarne la
lettura, vengono presi in esame due specifici passi, estrapolati dalle sezioni relative alla
narrazione degli anni di formazione di Persio (§ 3) e all’elenco delle sue opere giovanili (§
8), dai quali è possibile ricavare elementi utili per tentare di dirimere due diverse
problematiche di carattere esegetico – testuale (aliquatenus e vescio) presenti nell’antica
Vita Persi attribuita a Valerio Probo
Mitral valve surgery with extensive annular calcification: review of surgical techniques and postoperative complications
No full textMitral annular calcification (MAC) represents an important risk factor in mitral valve (MV) surgery. Despite several procedures having been described, no surgical treatment of choice has been established so far: whether a decalcification should be systematically carried out, or if the MV should be preferentially repaired rather than replaced. A review of the literature on patients undergoing MV surgery associated with MAC was performed. Studies were excluded if dealing with endovascular procedures or emergency surgery for associated endocarditis. Case reports were also not considered in the final analysis. The literature search identified 1429 potentially eligible studies, and 25 papers were eventually included. Several surgical techniques were described to approach this challenging condition. During MV surgery, the presence of MAC favors the occurrence of suboptimal intraoperative outcomes. MAC-related complications such as atrioventricular groove rupture, cerebrovascular accident, new permanent pacemaker implantation, intraoperative conversion from valve repair to replacement and mortality were analyzed. MV surgery in the presence of MAC considerably impacts the postoperative outcomes in terms of morbidity and mortality. A great variability of surgical techniques is reported, suggesting the need for standardization of the approach
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
A Sigma-Delta Controlled Power Converter for Energy Harvesting Applications
No full textThis work proposes an autonomous energy scavenger battery-free switching power supply. A piezoelectric transducer is used to get electric energy from a mechanical vibrating source. Piezoelectric device has been modelled by means of its equivalent electric resonant model. All system has been designed and then simulated at system level by means of SystemC-WMS environment. The device make use of a full digital controller based on a Dynamic OSR ΣΔ modulator
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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