1,721,319 research outputs found
Anna Santoliquido e l’incontro
No full textStudio dell'itinerario intellettuale di Anna Santoliquido, a partire dagli atti dei numerosi convegni da lei promossi, per culminare nell'analisi della sua produzione poetica, con attenzione ad alcuni dettagli autobiografici
Anna Santoliquido, la grazia che nasce dalla pietra
No full text"Una vita in versi" è l'omaggio del mondo intellettuale ad Anna Santoliquido, un'autrice che ha segnato il Mezzogiorno con la creatività, gli incontri e le collaborazioni nazionali e internazionali. La varietà degli interventi e le sfumature artistiche avvalorano un lavoro d'anima e di ricerca della Bellezza, che sfolgora da ogni testo del libro. Ne emerge un arazzo intessuto di terra e mare nel quale la sacralità dell'antico si coniuga con la dimensione del sogno e la preziosità del reale. Un itinerario umano e letterario, che può essere da sprone nell'attuale società tecno-globalizzata
Keagan BREWER, Prester John: The Legend and its Sources, «Crusade Texts in Translation» 27; Farnham, Surrey–Burlington: Ashgate, 2015, viii + 340 pp.
No full textI segmenti storico-militari nel«Devisement dou monde» di Marco Polo: analisi morfologica
No full textThe paper aims to: 1) define a poetics of narration and representation in Polo’s Devisement dou monde by means of a morphological and stylistic analysis of the battle scenes included in the book; 2) make a comparison with the meslee scenes in Rustichello’s Compilation arthurienne (around 1270-1274), in order to show how the Pisan romance writer, who co-authored the Milione with the Venetian traveller (Genoa, 1298), crafted the partes historiales of their livre, blending chivalric fiction and historical fragments. The study is enriched with one or two references to the Mongolian Secret History of the Mongols (probably 1228)
L'impegno della scrittura: Franco Tilena e Anna Santoliquido
No full textDi Franco Tileno il critico mostra di apprezzare gli approdi narrativi del romanzo "Via Vittorio Veneto" (1998) dopo gli esordi poetici; di Anna Santoliquido Catalano presenta la raccolta di poesie del 1996, "Nei veli di settembre"
L'EVOLUZIONE DEGLI OGGETTI COMPATTI E DELLE LORO GALASSIE OSPITI NEL TEMPO COSMICO
No full textGravitational wave detections allow us to construct a demography of compact objects. These are exotic systems such as stellar-mass black holes and neutron stars. The LIGO-Virgo-KAGRA collaboration has gathered about 90 event candidates with high probability of astrophysical origin, all of them possibly associated with binary compact object mergers. In this Thesis, I explore the evolution of binary compact objects across cosmic time. This topic has become increasingly important in recent years, as the next generation of ground-based detectors is expected to detect binary black hole mergers up to z ∼ 100.
In this work, I evaluate the astrophysical rates and the properties of the host galaxies of binary black holes (BBHs), black hole-neutron star binaries (BHNSs) and binary neutron stars (BNSs). Determining their merger rate density evolution is challenging because of various sources of uncertainty. To address this issue, I have developed a code called cosmoRate, which combines catalogues of merging compact objects with an observation-based estimate of the metallicity-specific star formation rate density. This code is highly adaptable and allows for the exploration of different regions of the parameter space that significantly impact the merger rate density. For example, I took into account different formation channels of binary compact objects, such as dynamics or isolated binary evolution. I have found that the merger rate density of dynamically formed BBHs in young star clusters is higher than that of isolated BBHs. This is not the case for BNSs formed in young star clusters, which are less likely to merge because dynamics inhibits their formation.
Focusing on the isolated formation scenario, I examined the major sources of uncertainty that affect the merger rate density. For example, the BNS merger rate ranges from ∼ 10^3 to ∼ 20 Gpc^−3 yr^−1 at redshift z ∼ 0, when the common envelope efficiency parameter is varied from α = 7 to 0.5 in our population synthesis code MOBSE. In contrast, the local merger rates of BBHs and BHNSs only change by a factor of ∼ 2 − 3. The main source of uncertainty for the BBH merger rate density is the uncertainty in stellar metallicity evolution, which leads to a variation of (at least) one order of magnitude.
The host galaxies of gravitational-wave sources contain valuable insights about the formation and evolution of compact object mergers. To study this topic, I developed a code called galaxyRate, which uses observational scaling relations to estimate the astrophysical rates and host galaxy properties. I obtained the properties of the formation galaxy population from the galaxy stellar mass function, the star- forming main sequence of galaxies, and either the mass metallicity relation or the fundamental metallicity relation. I found that the evolution of the BBH merger rate density is significantly impacted by the choice of both the galaxy main sequence and the metallicity evolution. For example, the BBH merger rate density increases more rapidly when using the mass metallicity relation. I also found that, in general, BBHs tend to form in low-mass, metal-poor galaxies and merge in high-mass, metal-rich galaxies.
The next-generation ground-based detectors will explore gravitational-wave sources at high redshift. In preparation for this, I evaluated the merger rate density and evolving mass spectrum of BBHs formed from the first generation of stars (Population III stars). I thoroughly examined a variety of initial conditions, including variations in the orbital properties and initial mass function of Pop. III binary systems, as well as four models of the formation history of Pop. III stars. My analysis revealed that the median merger rate density is 4 Gpc^−3 yr^−1 at z = 8−10, and 0.1 Gpc^−3 yr^−1 at z = 0, with an uncertainty of about four orders of magnitude.Gravitational wave detections allow us to construct a demography of compact objects. These are exotic systems such as stellar-mass black holes and neutron stars. The LIGO-Virgo-KAGRA collaboration has gathered about 90 event candidates with high probability of astrophysical origin, all of them possibly associated with binary compact object mergers. In this Thesis, I explore the evolution of binary compact objects across cosmic time. This topic has become increasingly important in recent years, as the next generation of ground-based detectors is expected to detect binary black hole mergers up to z ∼ 100.
In this work, I evaluate the astrophysical rates and the properties of the host galaxies of binary black holes (BBHs), black hole-neutron star binaries (BHNSs) and binary neutron stars (BNSs). Determining their merger rate density evolution is challenging because of various sources of uncertainty. To address this issue, I have developed a code called cosmoRate, which combines catalogues of merging compact objects with an observation-based estimate of the metallicity-specific star formation rate density. This code is highly adaptable and allows for the exploration of different regions of the parameter space that significantly impact the merger rate density. For example, I took into account different formation channels of binary compact objects, such as dynamics or isolated binary evolution. I have found that the merger rate density of dynamically formed BBHs in young star clusters is higher than that of isolated BBHs. This is not the case for BNSs formed in young star clusters, which are less likely to merge because dynamics inhibits their formation.
Focusing on the isolated formation scenario, I examined the major sources of uncertainty that affect the merger rate density. For example, the BNS merger rate ranges from ∼ 10^3 to ∼ 20 Gpc^−3 yr^−1 at redshift z ∼ 0, when the common envelope efficiency parameter is varied from α = 7 to 0.5 in our population synthesis code MOBSE. In contrast, the local merger rates of BBHs and BHNSs only change by a factor of ∼ 2 − 3. The main source of uncertainty for the BBH merger rate density is the uncertainty in stellar metallicity evolution, which leads to a variation of (at least) one order of magnitude.
The host galaxies of gravitational-wave sources contain valuable insights about the formation and evolution of compact object mergers. To study this topic, I developed a code called galaxyRate, which uses observational scaling relations to estimate the astrophysical rates and host galaxy properties. I obtained the properties of the formation galaxy population from the galaxy stellar mass function, the star- forming main sequence of galaxies, and either the mass metallicity relation or the fundamental metallicity relation. I found that the evolution of the BBH merger rate density is significantly impacted by the choice of both the galaxy main sequence and the metallicity evolution. For example, the BBH merger rate density increases more rapidly when using the mass metallicity relation. I also found that, in general, BBHs tend to form in low-mass, metal-poor galaxies and merge in high-mass, metal-rich galaxies.
The next-generation ground-based detectors will explore gravitational-wave sources at high redshift. In preparation for this, I evaluated the merger rate density and evolving mass spectrum of BBHs formed from the first generation of stars (Population III stars). I thoroughly examined a variety of initial conditions, including variations in the orbital properties and initial mass function of Pop. III binary systems, as well as four models of the formation history of Pop. III stars. My analysis revealed that the median merger rate density is 4 Gpc^−3 yr^−1 at z = 8−10, and 0.1 Gpc^−3 yr^−1 at z = 0, with an uncertainty of about four orders of magnitude
Giovanni Battista Ramusio "Dei Viaggi di Messer Marco Polo". Edizione critica digitale progettata e coordinata da Eugenio Burgio, Marina Buzzoni e Antonella Gheresetti. A cura di Eugenio Burgio e Samuela Simion.
No full textDei viaggi di Messer Marco Polo – versione del Milione redatta da Giovan Battista Ramusio per le Navigationi et viaggi (1559) – è oggi accessibile in un’edizione critica commentata, pensata nella forma di un’applicazione ipertestuale per il Web, grazie alla quale il “lettore” potrà attingere contemporaneamente: alla visualizzazione continua del testo (in edizione critica); alla visualizzazione del commento filologico, organizzato secondo la divisione in tre libri; al recupero integrale delle sette versioni del Milione (tre delle quali inedite) direttamente/indirettamente in gioco sul tavolo di Ramusio; a un corpo di schede (attivabili in pop-up) che forniscono informazioni storico-geografiche (con un link a Google-Maps) su persone, luoghi e oggetti significativi del testo. Il progetto intellettuale è stato coordinato da Eugenio Burgio, Marina Buzzoni e Antonella Ghersetti; vi hanno collaborato (in forme diverse) Samuela Simion (corresponsabile anche della cura editoriale), Alvise Andreose, Alvaro Barbieri, Giampiero Bellingeri, Angelo Cattaneo, Marco Ceresa, Giacomo Corazzol, Simone Cristoforetti, Daniele Cuneo, Paolo De Troia, Giuseppe Mascherpa, Laura Minervini, Maria Piccoli, Elisabetta Ragagnin, Irene Reginato, Fabio Romanini, Vito Santoliquido, Federico Squarcini. La progettazione intellettuale e l’implementazione digitale dell’edizione sono state finanziate dal Programma 2011 «Progetti di Ricerca di Ateneo» dell’Università Ca’ Foscari Venezia
Refining diagnosis and management of chronic venous disease: Outcomes of a modified Delphi consensus process
No full textChronic venous disease (CVD) is a common condition with major health consequences that is associated with poor long-term prognosis, significant socioeconomic impact, disabling symptoms and reduced quality of life. To provide practical guidance for diagnosis and management of CVD, a Delphi panel of 5 experts in steering committee and 28 angiologists/vascular surgeons met with the major aim of providing a supplement for established national and international guidelines. A total of 24 statements were voted upon in two rounds, of which consensus was reached on 22 statements, indicating a high level of overall agreement. Consensus was reached on 7 of 8 statements relative to diagnosis (CEAP classification, diagnostic tools, QoL assessment, diagnostic imaging) and on 15 of 16 statements on management (conservative treatments, compressive therapy, pharmacological therapy, surgical treatment). The results of the consensus reached are discussed herein from which it is clear that diagnostic and management approaches utilising personalised therapies tailored to the individual patient should be favoured. While it is clear that additional studies are needed on many aspects of diagnosis and management of CVD, the present Delphi survey provides some key recommendations for clinicians treating CVD that may be useful in daily practice
Il 'Liber descriptionis' di Marco Polo nel ms. parigino BnF, lat. 3195: edizione critica e studio
No full textLa ‘forma’ di riferimento della tesi è disponibile sulla piattaforma ZORA dell'Università di Zurigo all'indirizzo: https://www.zora.uzh.ch/id/eprint/170822/. - - - -
Il cuore dell'elaborato è costituito dall’edizione critica commentata della redazione LT (latina trecentesca) del ‘Milione’ di Marco Polo racchiusa nel ms. parigino BnF, lat. 3195; il testo è introdotto da uno studio filologico, linguistico e storico-culturale
Innovazione tecnologica e assicurazione RC Auto: quale scenario per le polizze a consumo?
No full textCERAP Bocconi Working Pape
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