1,721,065 research outputs found

    Nero's thirst

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    The two references to thirst that we read in Suetonius’ Life of Nero (34, 4 ; 48, 3-4) have generally been overlooked by critics, and their function in the narrative framework of the episodes containing them is far from clear. Here I try to explain them through the ancient medical tradition, which interpreted thirst as a specific psychosomatic reaction to external impulses similar to those faced by Nero in two decisive moments of his biography

    Domenico di Bandino. Recollecte Lucani

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    Lo studio dell’attività del Domenico di Bandino auctorista, interprete di classici “antichi” e “moderni” come Valerio Massimo, Lucano, la Rhetorica ad Herennium e Dante, è stato finora pressoché completamente oscurato a vantaggio di quello della sua opera di maggior respiro, la monumentale enciclopedia intitolata Fons memorabilium uniuersi. Questa edizione del commento dell’umanista aretino al Bellum Ciuile di Lucano, finora inedito, si propone di colmare tale rilevante lacuna: gettando uno sguardo nella classe stessa del magister – il testo ci è stato infatti tramandato nella forma di recollecte, appunti presi da uno studente a lezione – si riesce a far luce su molti aspetti di assoluto interesse relativi all’insegnamento di Lucano nel primo umanesimo, dalla forte continuità con l’esegesi medievale alla riscoperta e implementazione di testi come Tacito e i Commentarii cesariani, dall’introduzione di nuovi approcci interpretativi al rapporto con altre lecturae coeve. L’edizione, corredata da un’ampia introduzione, un ricco apparato delle fonti e indici analitici, è inoltre il primo contributo ecdotico di vasto respiro alla scoliastica lucanea dopo il completamento della pubblicazione del Supplementum Adnotationum super Lucanum a cura di Giuseppe Angelo Cavajoni (1979-1990)

    Lucano, Bellum Civile VIII. Introduzione, testo, traduzione e commento

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    In the flourishing revival of commentaries on Lucan's Bellum Civile over the last two decades, Book VIII had not yet received an interest commensurate with its decisive importance in the overall structure of the poem: until now, the only comprehensive exegetical tools available to scholars remained those of J. P. Postgate (1917) and R. Mayer (1981), now inevitably dated. This new commentary, accompanied by an extensive introduction, a critically revised text and a 'service' translation conceived as a first interpretive approach, aims to fill this gap not only by taking due account of the renewed scholarly debate on numerous aspects of Lucan's poem, but also by making the minute analysis of the text an opportunity to reconsider in a new light some traditional themes of Lucan's bibliography, from the relationship with historical sources to that with the practice of declamation, from the poet's political positions to his technical-scientific skills. For these reasons, the volume is an opportunity for comparison and in-depth study not only for those who deal with Latin epics or the literature of the Neronian age, but also for historians and scholars of rhetoric

    Machine Learning in clinical biology and medicine: from prediction of multidrug resistant infections in humans to pre-mRNA splicing control in Ciliates

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    Machine Learning methods have broadly begun to infiltrate the clinical literature in such a way that the correct use of algorithms and tools can facilitate both diagnosis and therapies. The availability of large quantities of high-quality data could lead to an improved understanding of risk factors in community and healthcare-acquired infections. In the first part of my PhD program, I refined my skills in Machine Learning by developing and evaluate with a real antibiotic stewardship dataset, a model useful to predict multi-drugs resistant urinary tract infections after patient hospitalization9 . For this purpose, I created an online platform called DSaaS specifically designed for healthcare operators to train ML models (supervised learning algorithms). These results are reported in Chapter 2. In the second part of the PhD thesis (Chapter 3) I used my new skills to study the genomic variants, in particular the phenomenon of intron splicing. One of the important modes of pre-mRNA post-transcriptional modification is alternative intron splicing, that includes intron retention (unsplicing), allowing the creation of many distinct mature mRNA transcripts from a single gene. An accurate interpretation of genomic variants is the backbone of genomic medicine. Determining for example the causative variant in patients with Mendelian disorders facilitates both management and potential downstream treatment of the patient’s condition, as well as providing peace of mind and allowing more effective counselling for the wider family. Recent years have seen a surge in bioinformatics tools designed to predict variant impact on splicing, and these offer an opportunity to circumvent many limitations of RNA-seq based approaches. An increasing number of these tools rely on machine learning computational approaches that can identify patterns in data and use this knowledge to speculate on new data. I optimized a pipeline to extract and classify introns from genomes and transcriptomes and I classified them into retained (Ris) and constitutively spliced (CSIs) introns. I used data from ciliates for the peculiar organization of their genomes (enriched of coding sequences) and because they are unicellular organisms without cells differentiated into tissues. That made easier the identification and the manipulation of introns. In collaboration with the PhD colleague dr. Leonardo Vito, I analyzed these intronic sequences in order to identify “features” to predict and to classify them by Machine Learning algorithms. We also developed a platform useful to manipulate FASTA, gtf, BED, etc. files produced by the pipeline tools. I named the platform: Biounicam (intron extraction tools) available at http://46.23.201.244:1880/ui. The major objective of this study was to develop an accurate machine-learning model that can predict whether an intron will be retained or not, to understand the key-features involved in the intron retention mechanism, and provide insight on the factors that drive IR. Once the model has been developed, the final step of my PhD work will be to expand the platform with different machine learning algorithms to better predict the retention and to test new features that drive this phenomenon. These features hopefully will contribute to find new mechanisms that controls intron splicing. The other additional papers and patents I published during my PhD program are in Appendix B and C. These works have enriched me with many useful techniques for future works and ranged from microbiology to classical statistics
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