1,236 research outputs found
Il sogno nella lirica dei trovatori e dei trovieri.
No full textQuesto studio è fondato su una ricerca lessicale esaustiva sulle banche dati TROBVERS e TROUVEORS dei derivati in lingua d’oc e d’oïl dei verbi latini somniare e dormire, permettendo di costruire il corpus delle composizioni dei trovatori e dei trovieri che trattano del tema del sogno.
Il corpus è costituito da settantatré testi, i quali sono soprattutto cansons/chansons di argomento amoroso, e tensons/jeux-partis.
Il tema si presenta articolato in diversi motivi, tra i quali quello dell’appagamento dell’amore in sogno può essere considerato come uno dei topoi classici della lirica d’amore cortese: esso è infatti molto frequente, figura con le stesse caratteristiche a partire dall’opera di Jaufre Rudel, ha i suoi difensori e i suoi nemici, è apertamente deriso da due composizioni anonime, ed è al centro di diversi testi, tra le quali il jeu-parti Or coisisiés, Jehan de Grieviler [Linker 144.1] tra i due rappresentati del puy d’Arras Jehan de Marli e Jehan de Grieviler è particolarmente significativo.
Questo studio propone di interpretare il motivo dell’appagamento dell’amore in sogno come funzionale alla concezione maggioritaria dell’amor cortese fondata sull’ossimoro “to have and have not” - secondo la formula di Leo Spitzer -, un amore che comprende il desiderio fisico, ma che non vuole possedere se non in sogno
L'Italia e la civiltà,
No full textAt head of title: Pasquale Villari."Bibliografia", p. 441-444.pte. 1. Antichità e medio evo.--pte. 2. Rinascimento e etaà moderna.--pte. 3. Vecchia e nuova Italia.--pte. 4. L'italianità nel Trentino, nella Venezia Giulia e nella Dalmazia.--pte. 5. La guerra europea e la missione dell'Italia.Mode of access: Internet.2a ed. notevolmente ampliata
Giulia Veronica Varisco
No full textThe headword explains the biography and the contribution of the author Giulia Varisco to the children's literatur
Quando "sguardo" e "bellezza" si fanno parola
No full textLa rappresentazione della realtà storica, artistica e sociale dell'Istria e della Dalmazia nelle testimonianze letterarie di Pasquale Villari, Adolfo Venturi, Ugo Ojetti
The variants of the retro- and hypotympanum: an endoscopic anatomical study
No full textThe retro- and hypotympanum are hidden areas of the middle ear, only poorly recognized. Nevertheless, this region is of relevant clinical significance, since it is regularly affected by disease such as cholesteatoma. The aim of this study is to explore and describe the anatomical variants of the hypo- and retrotympanum by the means of transcanal endoscopy. We hypothesize a significant variability of this hidden region of the middle ear. Moreover, we believe that the minimal invasive, endoscopic access is suitable since angled scopes may be used to explore the region. To this end a total of 125 middle ears (83 cadaveric dissections, 42 surgical cases) were explored by the means of 3Â mm straight and angled scopes. The variants were documented photographically and tabularized. The bony crests ponticulus, subiculum and finiculus were most frequently represented as ridges. The ponticulus showed the highest variability with 38% ridge, 35% bridge and 27% incomplete presentation. The subiculum was bridge-shaped only in 8% of the cases, the finiculus in 17%. The sinus tympani had a normal configuration in 66%. A subcochlear canaliculus was detectable in 50%. The retro- and hypotympanum were classified, respectively, to the present bony crests and sinus in a novel classification type IâIV. In conclusion, we found abundant variability of the bony structures in the retro- and hypotympanum. The endoscopic access is suitable and offers thorough understanding and panoramic views of these hidden areas
Effectiveness and Safety of Ticagrelor Monotherapy After Short-Duration Dual Antiplatelet Therapy in PCI Patients: A Systematic Review and Meta-Analysis
No full textDual antiplatelet therapy (DAPT), consisting of aspirin and a P2Y12 inhibitor, is the standard treatment for patients undergoing percutaneous coronary intervention (PCI) with drug-eluting stents (DES). However, the optimal duration of DAPT remains debated due to the need to balance ischemic event reduction with bleeding risks. This study evaluates the efficacy and safety of ticagrelor monotherapy after short-duration DAPT (1 to 3 months) compared to extended DAPT, focusing on major bleeding and cardiovascular outcomes. A systematic review and meta-analysis were conducted in accordance with PRISMA guidelines. Randomized controlled trials (RCTs) comparing ticagrelor monotherapy after short-duration DAPT to extended DAPT were identified from PubMed, Embase, and the Cochrane Library. Data on major bleeding, major adverse cardiovascular and cerebrovascular events (MACCE), myocardial infarction, stroke, stent thrombosis, and mortality were analyzed, and risk ratios (RR) with 95% confidence intervals (CI) were calculated using a random-effects model. Five RCTs involving 32,393 patients were included. Ticagrelor monotherapy significantly reduced MACCE (RR: 0.88; 95% CI: 0.77 to 0.99; p = 0.04) and major bleeding (RR: 0.53; 95% CI: 0.37 to 0.77; p = 0.0008) compared to extended DAPT. It also significantly reduced all-cause mortality (RR: 0.82; 95% CI: 0.67 to 0.99; p = 0.04) and cardiovascular death (RR: 0.68; 95% CI: 0.49 to 0.94; p = 0.02). The incidence of myocardial infarction, stent thrombosis, and stroke were similar between the groups. Net adverse clinical events (NACE) were 27% lower with ticagrelor monotherapy (RR: 0.73; 95% CI: 0.63 to 0.85; p <0.0001). In conclusion, ticagrelor monotherapy after short-duration DAPT reduces major bleeding complications without compromising cardiovascular protection. This approach offers a promising strategy to optimize outcomes for PCI patients, particularly those at high bleeding risk. Further studies are needed to refine the optimal DAPT duration in various patient populations, especially those with higher ischemic risk
Ytterbium Disilicate/Monosilicate Multilayer Environmental Barrier Coatings: Influence of Atmospheric Plasma Spray Parameters on Composition and Microstructure
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Ytterbium Disilicate/Monosilicate Multilayer Environmental Barrier Coatings: Influence of Atmospheric Plasma Spray Parameters on Composition and Microstructure
by Giulia Di Iorio,Laura Paglia *ORCID,Giulia PedrizzettiORCID,Virgilio GenovaORCID,Francesco MarraORCID,Cecilia BartuliORCID andGiovanni PulciORCID
INSTM Reference Laboratory for Materials and Surface Engineering, Sapienza University of Rome, Eudossiana 18, 00184 Rome, Italy
*
Author to whom correspondence should be addressed.
Coatings 2023, 13(9), 1602; https://doi.org/10.3390/coatings13091602
Original submission received: 10 August 2023 / Revised: 31 August 2023 / Accepted: 11 September 2023 / Published: 13 September 2023
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Abstract
SiC/SiC ceramic matrix composites (SiCf/SiC CMCs) are regarded as the new materials for the hot-section components of aircraft gas turbine engines, since they have one-third of the density of metallic superalloys, a higher temperature capability, good mechanical strength, and excellent thermal shock resistance. However, high-temperature water-vapor-rich combustion gases can induce severe surface recession phenomena in SiC/SiC leading to component failure. For this reason, it is necessary to design protective coatings, i.e., environmental barrier coatings (EBCs), able to protect the SiC/SiC surface in combustion environments. In the present work, ytterbium monosilicate (Yb2SiO5), stable when exposed to water vapor at high temperatures, and ytterbium disilicate (Yb2Si2O7), characterized by a thermal expansion coefficient closer to that of the substrate, were selected for a multilayer EBC system. EBCs were processed using the atmospheric plasma spray (APS) technique. A set of deposition parameters were tested, varying the power of the torch, and the composition and microstructure of the deposited coatings were studied in terms of porosity, crack density, and post-deposition phase retention by performing SEM, EDS, and XRD analysis. The results allow for the definition of the influence of deposition parameters on the final properties of multilayer EBC coatings
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