Zobrazeno 1 - 10
of 6 374
pro vyhledávání: '"A Frisoni"'
Spin foams arose as the covariant (path integral) formulation of quantum gravity depicting transition amplitudes between different quantum geometry states. As such, they provide a scheme to study the no boundary proposal, specifically the nothing to
Externí odkaz:
http://arxiv.org/abs/2407.19036
Medical open-domain question answering demands substantial access to specialized knowledge. Recent efforts have sought to decouple knowledge from model parameters, counteracting architectural scaling and allowing for training on common low-resource h
Externí odkaz:
http://arxiv.org/abs/2403.01924
We present a numerical analysis of an Hartle-Hawking state for the early universe, in the deep quantum regime, computed using the covariant Loop Quantum Gravity formalism, in a truncation defined by 16-cell and in a simplified case where the dynamics
Externí odkaz:
http://arxiv.org/abs/2312.02399
Autor:
Sara Stampacchia, Saina Asadi, Szymon Tomczyk, Federica Ribaldi, Max Scheffler, Karl-Olof Lövblad, Michela Pievani, Aïda B. Fall, Maria Giulia Preti, Paul G. Unschuld, Dimitri Van De Ville, Olaf Blanke, Giovanni B. Frisoni, Valentina Garibotto, Enrico Amico
Publikováno v:
Communications Biology, Vol 7, Iss 1, Pp 1-16 (2024)
Abstract Functional connectivity patterns in the human brain, like the friction ridges of a fingerprint, can uniquely identify individuals. Does this “brain fingerprint” remain distinct even during Alzheimer’s disease (AD)? Using fMRI data from
Externí odkaz:
https://doaj.org/article/6d292a1680c44a45a1fe40cf5bcf9976
Autor:
Frisoni, Pietropaolo
These notes are a transcript of Carlo Rovelli's lectures on Loop Quantum Gravity, given in Marseille in 2018, which (at present) can be entirely found on YouTube. I transcribed them in LaTeX in early 2020 as an exercise to get ready for my Ph.D. in L
Externí odkaz:
http://arxiv.org/abs/2305.12215
Autor:
Frisoni, Pietropaolo
Publikováno v:
Phys. Rev. D 107, 126012 (2023)
We outline an algorithm to compute numerically the black-to-white hole transition amplitude, using the loop quantum gravity covariant formulation and the Lorentzian Engle-Pereira-Rovelli-Livine model. We apply the algorithm to calculate the crossing
Externí odkaz:
http://arxiv.org/abs/2304.02691
Autor:
Lisa Quenon, Lyduine E. Collij, David Vállez Garcia, Isadora Lopes Alves, Thomas Gérard, Vincent Malotaux, Lara Huyghe, Juan Domingo Gispert, Frank Jessen, Pieter Jelle Visser, Anouk den Braber, Craig W. Ritchie, Mercè Boada, Marta Marquié, Rik Vandenberghe, Emma S. Luckett, Michael Schöll, Giovanni B. Frisoni, Christopher Buckley, Andrew Stephens, Daniele Altomare, Lisa Ford, Cindy Birck, Anja Mett, Rossella Gismondi, Robin Wolz, Sylke Grootoonk, Richard Manber, Mahnaz Shekari, Renaud Lhommel, Laurence Dricot, Adrian Ivanoiu, Gill Farrar, Frederik Barkhof, Bernard J. Hanseeuw, the AMYPAD Consortium
Publikováno v:
Alzheimer’s Research & Therapy, Vol 16, Iss 1, Pp 1-13 (2024)
Abstract Background There is good evidence that elevated amyloid-β (Aβ) positron emission tomography (PET) signal is associated with cognitive decline in clinically normal (CN) individuals. However, it is less well established whether there is an a
Externí odkaz:
https://doaj.org/article/916789749e284220b7135dd30f36111c
Autor:
Mario Tranfa, Luigi Lorenzini, Lyduine E. Collij, David Vállez García, Silvia Ingala, Giuseppe Pontillo, Leonard Pieperhoff, Alessio Maranzano, Robin Wolz, Sven Haller, Kaj Blennow, Giovanni Frisoni, Carole H. Sudre, Gael Chételat, Michael Ewers, Pierre Payoux, Adam Waldman, Pablo Martinez‐Lage, Adam J. Schwarz, Craig W. Ritchie, Joanna M. Wardlaw, Juan Domingo Gispert, Arturo Brunetti, Henk J. M. M. Mutsaerts, Alle Meije Wink, Frederik Barkhof
Publikováno v:
Annals of Clinical and Translational Neurology, Vol 11, Iss 6, Pp 1541-1556 (2024)
Abstract Objective Alzheimer's disease (AD) and cerebral small vessel disease (cSVD), the two most common causes of dementia, are characterized by white matter (WM) alterations diverging from the physiological changes occurring in healthy aging. Diff
Externí odkaz:
https://doaj.org/article/e26e34b52bc34c948ba296d241f25394
Autor:
Dona, Pietro, Frisoni, Pietropaolo
Publikováno v:
Phys. Rev. D 107, 106008 (2023)
We introduce a strategy to compute EPRL spin foam amplitudes with many internal faces numerically. We work with sl2cfoam-next, the state-of-the-art framework to numerically evaluate spin foam transition amplitudes. We find that uniform sampling Monte
Externí odkaz:
http://arxiv.org/abs/2302.00072
Autor:
Rachel Contarin, Antoine Drapeau, Pauline François, Jean-Yves Madec, Marisa Haenni, Emilie Dordet-Frisoni
Publikováno v:
mBio, Vol 15, Iss 10 (2024)
ABSTRACT Antibiotic resistance genes (ARGs) in Staphylococcus aureus can disseminate vertically through successful clones, but also horizontally through the transfer of genes conveyed by mobile genetic elements (MGEs). Even though underexplored, MGE/
Externí odkaz:
https://doaj.org/article/809e6b6478014c4aae6f85f92c3db1c2