Archivio istituzionale della Ricerca - Scuola Normale Superiore
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Hermetic Revelation and Poetic Revelation in Francesco Patrizi da Cherso: some notes
No full textFrancesco Patrizi da Cherso (1529-1597) radicalized the Platonic instances, excluding Aristotelianism from the rebirth of modern philosophy, and updated them on the basis of the most recent innovations of the Century. Mainly through the analysis of specific passages of his monumental work, "Della Poetica", the contribution aims to investigate the connections between philosophy, poetry, magic, and political rebirth. For Patrizi, in fact, the original philosophical-religious revelation is expressed through poetic language, for specific physiological and operational reasons that poetic language entertains with respect to the psychosomatic construct of the human being
Medea at the Campus Martius: Ovid met. VII 136-138
No full textAbstract: Medea’s presence and active intervention in Jason’s trials on the Plain of Ares, as related in Metamorphoses vii 136-138, marks a significant departure from Apollonius’ narrative, partly anticipated in Heroides 12, 97-100. In helping her lover and turning pale at the dangers he faces, Ovid’s Medea acts like Ariadne in Catullus 64; at the same time, her intervention in the field can be regarded as a partial fulfilment of her famous dream in Argonautica iii 616-627, in which she imagines – and wishes – to undergo the trials in Jason’s place. Valerius Flaccus mediates between Apollonius’ and Ovid’s accounts, keeping Medea physically absent yet making her present through metonymy. Ovid also plays on toponymy and topography, suggesting an overlap between the mythical Plain of Ares in Colchis and the Campus Martius in Rome, the site where military exercises were commonly held and where Augustus gave athletic contests that the Lex Iulia theatralis prohibited women from attending
Precision measurement of the Xi0b baryon lifetime
No full textA sample of pp collision data, corresponding to an integrated luminosity of 5.4 fb-1 and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the Xi0b baryon to that of the Lambda0b baryon, (Formula presented). [See attached .pdf file
Otto Bauer, Left-wing Populism and the Challenge of Right-wing Nationalism
No full textThis paper examines the underexplored parallels between the thought of Austrian Marxist Otto Bauer and contemporary discussions on left-wing populism and national identity. While Marxist theory has often been accused of disregarding the political salience of national belonging, Bauer’s work offers a nuanced perspective, advocating for strategic engagement with national identities to counteract bourgeois and warlike nationalism. This study connects Bauer’s early 20th-century reflections to the strategies employed by 21st-century European left-populist movements, such as Podemos in its early phase in Spain, identifying notable parallels in both political context and strategic insight. By revisiting Bauer’s critique of naive cosmopolitanism and his emphasis on national identity as a site of class struggle, the paper argues that 21st-century European left-wing populism, in seeking to reclaim national belonging and identity as platforms for progressive, inclusive politics, adopted a counter-hegemonic approach that closely resembles Bauer’s vision
L’impatto della legislazione europea sulle piattaforme digitali tra costituzionalismo digitale e autonomia del sociale.
No full textL’articolo analizza la regolamentazione europea sulle piattaforme digitali, ricostruendone l’evoluzione da un approccio liberale orientato allo sviluppo del mercato unico a uno di tipo costituzionale volto a estendere i diritti fondamentali dei cittadini europei nella sfera digitale. Muovendo dallo schema teorico di Lawrence Lessig, il paper dimostra come la centralità infrastrutturale delle piattaforme abbia generato una concentrazione di potere che l’UE tenta di limitare tramite strumenti normativi come la Gdpr e il Digital Services Act. Tuttavia, questa legislazione, pur accrescendo la responsabilità delle piattaforme, indebolisce l’autonomia regolatrice degli utenti stessi
Quasi-Φ0-Periodic Supercurrent at Quantum Hall Transitions
Full text linkThe combination of superconductivity and quantum Hall (QH) effect is regarded as a key milestone in advancing topological quantum computation in solid-state systems. Recent quantum interference studies suggest that QH edge states can effectively mediate a supercurrent across high-quality graphene weak links. In this work we report the observation of a supercurrent associated with transitions between adjacent QH plateaus, where transport paths develop within the compressible two-dimensional bulk. We employ a back-gated graphene Josephson junction, comprising high-mobility CVD-grown graphene encapsulated in hexagonal Boron Nitride (hBN) and contacted by Nb leads. Superconducting pockets are detected persisting beyond the QH onset, up to 2.4 T, hence approaching the upper critical field of the Nb contacts. We observe an approximate Φ0= h/2e periodicity of the QH-supercurrent as a function of the magnetic field, indicating superconducting interference in a proximitized percolative phase. These results provide a promising experimental platform to investigate the transport regime of percolative supercurrents, leveraging the flexibility of van der Waals devices
The Role of Reference Frames In The Foundations of General Relativity
No full textThis thesis offers a systematic investigation of reference frames in General Relativity, with a particular emphasis on distinguishing them from coordinate systems. A novel classification of reference frames is proposed, grounded in their dynamical coupling to the gravitational field. Building on this classification, the dissertation revisits Earman’s symmetry principles, demonstrating that relaxing the assumption of dynamical coupling gives rise to new violations of the SP1 principle. The notions of influence and correlation between fields are analysed, enabling a principled distinction between physical and dynamical fields. The thesis also addresses the concept of observability in General Relativity, criticising existing notions in the relevant literature and advancing a new interpretation of Einstein’s point-coincidence argument, with implications for the ontology of spacetime.Questa tesi propone un’indagine approfondita sui sistemi di riferimento nella Relatività Generale, con particolare attenzione alla distinzione tra sistemi di riferimento e sistemi di coordinate. Viene presentata una nuova classificazione dei sistemi di riferimento, fondata sul loro accoppiamento dinamico con il campo gravitazionale. A partire da questa classificazione, la tesi analizza i principi di simmetria di Earman, mostrando come il rilassamento dell’assunzione di accoppiamento dinamico dia luogo a nuove violazioni del principio SP1. Vengono approfonditi i concetti di influenza e correlazione tra campi, rendendo possibile una distinzione rigorosa tra campi fisici e campi dinamici. La tesi affronta inoltre il concetto di osservabilità nella Relatività Generale, offrendo una valutazione critica delle proposte esistenti e avanzando una nuova interpretazione dell’argomento Einsteiniano delle coincidenze dei punti, con implicazioni per l’ontologia dello spaziotempo
Study of charm mixing and CP violation with D0-> Kπππ decays
Full text linkA study of charm mixing and CP violation in D0 -> K\pm pi\mp pi\pm pi\mp decays is performed using data collected by the LHCb experiment in proton-proton collisions from 2015 to 2018, corresponding to an integrated luminosity of 6 fb-1. The ratio of promptly produced D0-> K+pi-pi+pi- to D0 -> K-pi+pi-pi+ decay rates is measured as a function of D0 decay time, both inclusive over phase space and in bins of phase space. Taking external inputs for the D0−\bar{D}0 mixing parameters x and y allows constraints to be obtained on the hadronic parameters of the charm decay. When combined with previous measurements from charm-threshold experiments and at LHCb, improved knowledge is obtained for these parameters, which is valuable for studies of the angle \gamma of the Unitarity Triangle. An alternative analysis is also performed, in which external inputs are taken for the hadronic parameters, and the mixing parameters are determined, including Deltax and Deltay, which are nonzero in the presence of CP violation. It is found that x=0.85-0.24+0.15%, y=0.21-0.27+0.29%, Deltax = (-0.02 ± 0.04)% and Deltay=0.02-0.03+0.04%. These results are consistent with previous measurements and the hypothesis of CP conservation
Activists, intellectuals, and social movements: Universal Basic Income as a radical innovation
No full textUniversal Basic Income (UBI) has gathered momentum in recent years and gained visibility in public debates as politicians and public figures from a wide variety of backgrounds and ideologies have endorsed it, while pilot tests of UBI have been launched in different countries. The chapter examines the role played by intellectuals in these processes, arguing that they have been instrumental in this surge of popularity and the accessibility of elites and institutions, which is apparent in the last decade. The chapter explains on which grounds Universal Basic Income can be considered a progressive policy; shows how this concept entered the mainstream debate; and describes the role of progressive intellectuals in these processes, distinguishing different ways in which scholars in higher education institutions, experts in the third sector and charities, and public officials, engaged in a form of epistemic activism to sustain Universal Basic Income
Global commodities, Monopolies and Negotiation. Tobacco trade and taxation in the Grand Duchy of Tuscany and the Venetian Empire (17th-18th centuries)
Full text linkLa tesi indaga i monopoli fiscali del tabacco come caso paradigmatico per comprendere l’intersezione tra commercio globale e rafforzamento dei sistemi fiscali nell’età moderna. Attraverso un’analisi comparativa del Granducato di Toscana e dell’Impero Veneziano tra XVII e XVIII secolo, la ricerca analizza le dinamiche socioeconomiche e istituzionali che, da un lato, hanno consentito la trasformazione del tabacco da pianta esotica a merce globale e, dall’altro, hanno contribuito a regolarne la circolazione attraverso frontiere politiche, culturali e fiscali. La ricerca ha inteso comprendere come gli attori degli spazi mediterranei hanno partecipato alla cosiddetta ‘globalizzazione dell’età moderna’, adattandosi alle nuove sfide del commercio globale. In particolare, lo studio si è concentrato sul ruolo, per certi versi controintuitivo, giocato dei monopoli fiscali in tale ambito: la cornice legale del monopolio sovrano e le caratteristiche del commercio del tabacco definirono gli spazi di negoziazione tra istituzioni fiscali e reti mercantili. L’indagine di tali spazi di negoziazione fornisce un’importante chiave interpretativa per riconsiderare non solo i fattori che, tra Seicento e Settecento, facilitarono e promossero l’adozione del commercio del tabacco e lo sviluppo del suo settore, ma anche la logica complessiva nella quale si inquadravano i rapporti tra lo stato e il mondo mercantile nell’età moderna.The thesis investigates tobacco fiscal monopolies as a paradigmatic case to understand the intersection between global trade and the strengthening of fiscal systems in the early modern period. Through a comparative analysis of the Grand Duchy of Tuscany and the Venetian Empire between the 17th and 18th centuries, the research examines the socioeconomic and institutional dynamics that, on the one hand, facilitated the transformation of tobacco from an exotic plant into a global commodity, and on the other hand, contributed to regulating its circulation across political, cultural, and fiscal boundaries. The study aims to explore how Mediterranean actors participated in the so-called ‘globalization of the early modern age,’ adapting to the new challenges of global trade. Specifically, the research focuses on the somewhat counterintuitive role played by fiscal monopolies in this context: the legal framework of sovereign monopolies and the characteristics of tobacco trade defined the arenas of negotiation between fiscal institutions and mercantile networks. The investigation of these negotiation spaces provides an important interpretative key to reconsider not only the factors that, between the 17th and 18th centuries, facilitated and promoted the adoption of tobacco trade and the development of its sector but also the broader logic underpinning the relationships between the state and the mercantile world in the early modern period