Michele Piana

Count-based spectral component imaging (CCI) of solar flares in X-rays

Alessia Guidetti, Muriel Zoë Stiefel, Paolo Massa, Anna Maria Massone et autres

X-ray emission in solar flares is produced by both multi-thermal plasma and accelerated electrons. Classical imaging approaches reconstruct X-ray intensity maps which contain contributions from multiple spectral components (e.g., hot, superhot, and non-thermal), and do not allow retrieving the morphology of the …

Real-world use of liposomal amphotericin B: A large retrospective, observational, multicentre study

Claudia Bartalucci, Daniele Roberto Giacobbe, Marco Muccio, Silvia Sisto et autres

BACKGROUND: Invasive fungal diseases (IFDs) cause significant morbidity and mortality, and liposomal amphotericin B (L-AmB) is a key treatment option for both IFDs and visceral leishmaniasis. Despite extensive clinical experience, real-world data on L-AmB use across diverse clinical settings remain limited. METHODS: …

it (code pays fourni par la source)

ARCAFF: Full-Disk Detection Dataset (FDD)

Shane A. Maloney, Paul J. Wright, Daniel Gordon Gass, Sophie A. Murray et autres

ie, Afrique du Sud, us, gb, it, gr (code pays fourni par la source)

ARCAFF: Full-Disk Detection Dataset (FDD)

Shane A. Maloney, Paul J. Wright, Daniel Gordon Gass, Sophie A. Murray et autres

ie, Afrique du Sud, us, gb, it, gr (code pays fourni par la source)

STIX Ground Analysis Software (STIX-GSW)

Säm Krucker, L. Etesi, Andrea Francesco Battaglia, Nicky Hochmuth et autres

The STIX Ground Analysis Software (STIX-GSW) is the IDL-based analysis package for the Spectrometer/Telescope for Imaging X-rays (STIX), a hard X-ray instrument onboard ESA's Solar Orbiter mission. STIX observes solar flares and energetic particle events in the 4–150 keV energy range, providing …

ch, us, de, gb, it, ie, be, in (code pays fourni par la source)

Validation of an Extreme-ultraviolet Desaturation Technique for the Atmospheric Imaging Assembly on Board the Solar Dynamics Observatory Using Observations from the Extreme Ultraviolet Imager on Board Solar Orbiter

Sabrina Guastavino, D. Berghmans, C. Verbeeck, Stefan J. Hofmeister et autres

Abstract High-dynamic-range imaging in the extreme-ultraviolet regime is frequently compromised by detector saturation and charge blooming during intense solar flares, preventing reliable photometry of flare cores. This study presents, for the first time, a direct validation of a sparsity-regularized inverse-diffraction desaturation algorithm …

it, ru, us, ch (code pays fourni par la source)

A Theoretical Framework for Shared Reasoning Fragility in Clinician-Chatbot Interactions Through the Example of Antibiotic Prescribing

Daniele Roberto Giacobbe, Alessandra Agnese Grossi, Cristina Marelli, Marco Muccio et autres

Abstract: General-purpose large language model (LLM)-based chatbots are increasingly used by clinicians to discuss medical problems, including antibiotic prescribing. Their use creates an unprecedented setting for clinical reasoning in which diagnostic and therapeutic thinking becomes dynamically shared between human and machine. Here, …

it, fr (code pays fourni par la source)

Estimating Coronal Mass Ejection Arrival with Ensemble Physics-Driven Machine Learning: The May 2024 Superstorm Case

Sabrina Guastavino, Edoardo Legnaro, A. M. Massone, Michele Piana

Abstract The extreme G5 geomagnetic storm recorded in May 2024 was the consequence of a very fast and energetic Coronal Mass Ejection (CME) that cannibalized a sequence of multiple eruptions previously emitted by the Sun. This dramatic plasma cloud reached Earth in …

it (code pays fourni par la source)

CLEAN and multiscale CLEAN for STIX in Solar Orbiter

Miriana Catalano, Anna Volpara, Paolo Massa, Michele Piana et autres

CLEAN is a well-established deconvolution approach to Fourier imaging at radio wavelengths and hard X-ray energies. One of the main limitations of CLEAN for hard X-ray imaging is that it requires a final convolution step by means of a convolution kernel whose …

it, ch (code pays fourni par la source)

Real-World Experience with Venetoclax Therapeutic Drug Monitoring in Acute Myeloid Leukemia: Role of Posaconazole, Correlation with Safety and Efficacy

Beatrice Sani, Alessandro Cignetti, Marta Leporati, Sara Sommariva et autres

Objectives: Venetoclax (VEN) is approved for acute myeloid leukemia (AML) in association with azacitidine, in a 28-day schedule at a fixed dosage, which requires reduction if azoles are co-administered. The present study aims to evaluate VEN therapeutic drug monitoring (TDM) in a …

it, us (code pays fourni par la source)

Physics-Informed Feature Maps for Kernel-Based Learning: A Reinterpretation of Symbolic Regression

Margherita Lampani, Sabrina Guastavino, Michele Piana, Federico Benvenuto

Supervised machine learning involves approximating an unknown functional relationship from a limited dataset of features and corresponding labels. Within the framework of regularized approximation in reproducing kernel Hilbert spaces (RKHSs), this task reduces to the minimization of a regularized empirical risk functional, …

PRESOL: A web-based computational setting for feature-based flare forecasting

Chiara Curletto, Paolo Massa, Valeria Tagliafico, Cristina Campi et autres

Solar flares are the most explosive phenomena in the solar system and the main trigger of the events’ chain that starts from Coronal Mass Ejections and leads to geomagnetic storms with possible impacts on the infrastructures at Earth. Data-driven solar flare forecasting …

it, ch (code pays fourni par la source)