Buoni e cattivi: Agnadello nelle guerre in ottava rima

Charles VIII’s Italian campaign marked the beginning of the Italian Wars that ravaged the Italian peninsula. The dramatic events unfolding in the political arena exerted a profound influence on narrative poetry, with the guerre in ottava rima – poems about contemporary wars – becoming increasingly popular. How are figures of power represented in these texts? We know that traditional chivalric literature tends towards a ‘weak’ representation of the prince (e.g. the emperor Charlemagne), while the real heroes are the condottieri (the paladins). The aim of this chapter is to examine how this conventional representation of kings and warriors is adapted and modified in the guerre in ottava rima cycle by looking at texts that recount a particularly important and traumatic event: the battle of Agnadello (1509). Considering a wide selection of poems, anonymous and otherwise, written in the aftermath of the battle or many years after, pro-French and pro-Venetian, this chapter investigates their close relationship with chivalric literature: so close that, through a narration rich in codified and legendary elements, the battle of Agnadello gradually becomes a sort of ‘double’ of the battle of Roncesvalles. The protagonists of these poems constitute very interesting models of the prince and the commander: the ‘cristianissimo’ King Louis XII, a fine strategist, and the Venetian commander Bartolomeo d’Alviano, ‘feroce d’ingegno’, valiant but overly impetuous, the central figure in all the account

Magneto-viscoelastic laminates in finite shear

This paper presents a comprehensive theoretical framework for modeling magneto-viscoelastic laminates (MVLs) under both finite and infinitesimal strains. The laminate-based approach preserves explicit information about the material's internal structure through the orientation of layers, providing a direct link between microstructural architecture and macroscopic properties. By explicitly considering two distinct viscoelastic phases within the laminate, each with its own internal variable and relaxation time, our model captures the complex dynamic behavior observed in experimental studies. The governing equations are first derived for homogeneous strains, and then specialized to both finite and infinitesimal shearing deformation

Il tutor dei docenti neoassunti: validazione e utilizzo di uno strumento di osservazione tra pari.

Il contributo presenta gli esiti di un percorso di Formazione-Ricerca avviato nell’ambito delle attività formative in servizio rivolte ai tutor dei docenti neoassunti del Lazio, progettate e guidate dal Dipartimento di Scienze della Formazione dell’Università degli Studi Roma Tre in accordo con l’Ufficio Scolastico Regionale. Con uno sguardo diacronico l’obiettivo della ricerca è stato di proporre una sintesi delle evidenze raccolte in maniera sistematica dal 2019 al 2024. In particolare, vengono approfondite le attività di osservazione tra pari nell’anno di immissione in ruolo dei docenti neoassunti. In tale contesto è stato introdotto e validato uno strumento che consente, triangolando i punti di vista, di rilevare informazioni sull’azione didattica tenendo in considerazione alcune dimensioni considerate strategiche per innalzare la qualità del processo di insegnamentoapprendimento. L’unità di analisi comprende 3.731 docenti tutor e 3.420 docenti neoassunti. Gli esiti della ricerca confermano l’importanza di avvalersi di strumenti affidabili per poter avviare un confronto costruttivo volto a scambiarsi feedback formativi tra pari che possono concorrere positivamente al miglioramento della didattica

Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at s \sqrt{s} = 13 TeV with the ATLAS detector

Many extensions of the Standard Model, including those with dark matter particles, propose new mediator particles that decay into hadrons. This paper presents a search for such low mass narrow resonances decaying into hadrons using 140 fb(-1) of proton-proton collision data recorded with the ATLAS detector at a centre-of-mass energy of 13 TeV. The resonances are searched for in the invariant mass spectrum of large-radius jets with two-pronged substructure that are recoiling against an energetic photon from initial state radiation, which is used as a trigger to circumvent limitations on the maximum data recording rate. This technique enables the search for boosted hadronically decaying resonances in the mass range 20-100 GeV hitherto unprobed by the ATLAS Collaboration. The observed data are found to agree with Standard Model predictions and 95% confidence level upper limits are set on the coupling of a hypothetical new spin-1 Z ' resonance with Standard Model quarks as a function of the assumed Z '-boson mass in the range between 20 and 200 GeV

High Optical-to-X-Ray Polarization Ratio Reveals Compton Scattering in BL Lacertae’s Jet

Blazars, supermassive black hole systems with highly relativistic jets aligned with the line of sight, are the most powerful long-lived emitters of electromagnetic emission in the Universe. We report here on a radio-to-gamma-ray multiwavelength campaign on the blazar BL Lacertae with unprecedented polarimetric coverage from radio to X-ray wavelengths. The observations caught an extraordinary event on 2023 November 10-18, when the degree of linear polarization of optical synchrotron radiation reached a record value of 47.5%. In stark contrast, the Imaging X-ray Polarimetry Explorer found that the X-ray (Compton scattering or hadron-induced) emission was polarized at less than 7.4% (3 sigma confidence level). We argue here that this observational result rules out a hadronic origin of the high-energy emission and strongly favors a leptonic (Compton scattering) origin, thereby breaking the degeneracy between hadronic and leptonic emission models for BL Lacertae and demonstrating the power of multiwavelength polarimetry to address this question. Furthermore, the multiwavelength flux and polarization variability, featuring an extremely prominent rise and decay of the optical polarization degree, is interpreted for the first time by the relaxation of a magnetic "spring" embedded in the newly injected plasma. This suggests that the plasma jet can maintain a predominant toroidal magnetic field component parsecs away from the central engine

Measurement of the branching fraction and CP-violating asymmetry of the decay B0→π0π0 using 387 million Υ(4S) decays in Belle II data

We measure the branching fraction and CP-violating flavor-dependent rate asymmetry of B0→π0π0 decays reconstructed using the Belle II detector in an electron-positron collision sample containing 387×106 Υ(4S) mesons. Using an optimized event selection, we find 125±20 signal decays in a fit to background-discriminating and flavor-sensitive distributions. The resulting branching fraction is (1.25±0.23)×10-6 and the CP-violating asymmetry is 0.03±0.30

Symbolic Regression Method for Estimating Distance Between Two Coils of an Inductive Wireless Power Transfer System

Symbolic regression (SR) has emerged as a powerful tool for the characterization of Wireless Power Transfer (WPT) systems, estimating the distance between coils and finding the relationship between frequency and phase so as to find the best frequency to increase the power factor. This study explores the application of SR on both simulated and experimental data, demonstrating its effectiveness with low prediction errors. SR employs a genetic algorithm to identify the analytical formula that best represents the input–output relationship, combining the strengths of traditional machine learning and analytical modeling. The results, with prediction errors of less than 1%, indicate that SR not only enhances predictive accuracy but also provides insights into the underlying physical principles governing WPT systems. This dual advantage positions SR as a valuable method for optimizing WPT applications, paving the way for further research and development in this field

"Ad eloquencie lecturam exercendam publice": il soggiorno a Napoli di Costantino Lascaris

L’articolo verte sul soggiorno a Napoli di Costantino Lascaris fra il 1465 e il 1466. Si analizza il documento di nomina di Lascaris a lettore di retorica greca presso lo Studio della città. Si fornisce anche la prima edizione della lettera che l’erudito bizantino indirizzò ai propri studenti, posta in apertura alla sua epitome del Peri staseôn di Ermogene di Tarso. Dal confronto fra i due testi emerge la valenza culturale dell’insegnamento di Lascaris, che andrà inquadrato nel contesto di una specifica versione del classicismo umanistico propria della Napoli aragonese.The article focuses on the sojourn of Constantine Lascaris in Naples between 1465 and 1466. It analyses the document appointing Lascaris as lecturer of Greek rhetoric at the city’s Studium. The first edition of the letter that the Byzantine scholar addressed to his students, placed at the beginning of his epitome of Hermogenes of Tarsus’ Peri staseôn, is also provided. A comparison of the two texts reveals the cultural significance of Lascaris’ teaching, which is to be seen in the context of a specific version of humanistic classicism characteristic of Aragonese Naples