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Antenna arrays diagnosis through inverse-based approaches
No full textTwo effective regularization approaches for detecting faults in antenna arrays are discussed in this paper. The first one exploit the matrix method for fast and low-cost diagnostics. The second technique relies upon an inversion scheme in Lebesgue spaces, allowing an effective regularization of the problem. Preliminary results are discussed, showing the effectiveness of the approaches
Visualizzare con cura: etica dell’immagine e responsabilità progettuale nell’era dell’iperproduzione generativa
No full textIn un’epoca segnata da iperproduzione visiva e algoritmi di intelligenza artificiale generativa, il design visuale può ridefinire il proprio ruolo come pratica etica e relazionale. Il contributo, attraverso una lettura transdisciplinare, esplora il potenziale empatico delle immagini, proponendo una visione situata e speculativa della cura come chiave per progettare immaginari sostenibili e responsabili, capaci di generare prossimità e consapevolezza.Visual design can redefine its role as an ethical and relational practice in an era marked by visual hyperproduction and generative
artificial intelligence. Through a transdisciplinary lens, this contribution explores the empathetic potential of images, proposing
a situated and speculative understanding of care as a key to designing sustainable and responsible imaginaries capable of fostering proximity and awareness
Bruciare le frontiere. Rotte, confini e solidarietà della migrazione marocchina in Europa
No full textImpact of pressure ulcers and frailty on long-term mortality: a prospective cohort study of hospitalized older adults
No full textPurpose: This study investigates the impact of pressure ulcers (PU) on long-term survival in hospitalized older adults, to understand how frailty and PU interact to influence mortality and to explore their independent prognostic accuracy. Methods: Between February 21, 2022, and July 1, 2022, 324 patients (198 female, 126 male; mean age: 86), admitted to the Geriatric Unit and Transitional Care of San Bartolomeo Hospital, Sarzana, Italy, were enrolled. A comprehensive geriatric assessment (CGA) was performed by geriatricians, including the assessment of frailty using the Clinical Frailty Scale (CFS), and PU assessment, carried out by a trained nurse. Long-term mortality (median duration: 18 months) was collected through the regional electronic health data system with an 18-month follow-up period. Results: Older adults with PU had advanced frailty, higher nutritional risk, increased disability, and higher polypharmacy. Multivariate analysis showed that both frailty (CFS: HR 1.535, 95% CI 1.314-1.793, p < 0.001) and PU (HR 1.500, 95% CI 1.059-2.126, p = 0.020) were significant predictors of long-term mortality. Namely, each increment in CFS score was associated with a 53% increased risk in PU carriers. No significant interaction between CFS and PU on survival outcomes was found. Conclusion: The study underscored the independent prognostic significance of both PU and frailty in predicting long-term mortality in hospitalized older adults. A multidimensional approach considering both frailty and PU is crucial for accurate prognostication and improving care strategies for older patients
La valutazione formativa all’università: sostenere l’apprendimento degli studenti attraverso l’autovalutazione e la valutazione tra pari
No full textClassical and Quantum KMS States on Spin Lattice Systems
No full textWe study the classical and quantum KMS conditions within the context of spin lattice systems. Specifically, we define a strict deformation quantization (SDQ) for a S2-valued spin lattice system over Zd generalizing the renown Berezin SDQ for a single sphere. This allows to promote a classical dynamics on the algebra of classical observables to a quantum dynamics on the algebra of quantum observables. We then compare the notion of classical and quantum thermal equilibrium by showing that any weak*-limit point of a sequence of quantum KMS states fulfils the classical KMS condition. In short, this proves that the semiclassical limit of quantum thermal states describes classical thermal equilibrium, strenghtening the physical interpretation of the classical KMS condition. Finally we provide two sufficient conditions ensuring uniqueness of classical and quantum KMS states: The latter are based on an version of the Kirkwood-Salzburg equations adapted to the system of interest. As a consequence we identify a mild condition which ensures uniqueness of classical KMS states and of quantum KMS states for the quantized dynamics for a common sufficiently high temperature
