Sorbonne Université

Error-Controlled Mixed-Precision Cholesky Factorization with MX Microscaling Formats

Existing tile-centric mixed-precision Cholesky factorization, as used in recent Gordon Bell campaigns, is based on a heuristic that bounds only rounding contribution while ignoring underflow when classifying tiles for different IEEE floating point precisions. Direct application t...

Nonparametric Hazard Rate Estimation With Associated Kernels and Minimax Bandwidth Choice

ABSTRACT In this paper, we introduce a general theoretical framework for nonparametric hazard rate estimation using associated kernels, whose shapes depend on the point of estimation. Within this framework, we establish rigorous asymptotic results, including a second‐order expans...

MAC-explorer: bridging genome-based taxonomy and an identification tool for the Mycobacterium avium complex

The Mycobacterium avium complex (MAC) comprises genetically close nontuberculous mycobacteria responsible for human and animal infections worldwide. Increasing availability of whole-genome sequencing (WGS) data offers new opportunities for genomic surveillance and lineage trackin...

Early onset of the hot circumgalactic medium around Milky Way galaxies

Abstract Hot coronae are key regulators in Milky Way (MW)-type galaxy formation and are thought to emerge once a galaxy’s dark matter halo crosses a critical mass threshold, Mvir ~ 1012 M⊙, so that accretion shocks can heat infalling gas to virial temperatures, Tvir. Here we inve...

Landscape transcriptomics reveals ecological constraints on fish under anthropogenic coastal change

Abstract Urban zones are rapidly expanding worldwide, exposing organisms to complex and multidimensional stressors. However, linking organismal responses to environmental change at ecologically relevant scales remains a major challenge. To investigate the constraints imposed on f...

Replicability of agent-based simulations: a case study with a SEIRS epidemiological model

Reproducibility is not only a cornerstone of the advancement of science, but also of scientific credibility. However, it remains a persistent challenge across many disciplines, and it is now referred to as the “reproducibility crisis.” This issue is particularly relevant in compu...

On the Physical Origins of the Millimeter Fundamental Plane in Active Galactic Nuclei

Abstract Observations of active galactic nuclei have revealed a correlation between millimeter luminosity, X-ray luminosity, and mass, suggesting the emission in each of these bands is powered by a common source. Starting with a set of five general relativistic magnetohydrodynami...

Breaking the Blend: A multi-tracer kinematic decomposition method for IFS data applied to disentangling the AGN outflow and circumnuclear ring in NGC 5728 with JWST

Abstract Integral field spectroscopy (IFS) of the central kiloparsecs of active galactic nuclei (AGN) reveals a mixture of spatially coincident emission from star-formation and AGN feedback exciting the interstellar medium. Disentangling these components remains a challenge, as m...

Interfacial Electric Fields in Water Nanodroplets Are Weakly Dependent on Curvature and pH

Abstract The origin of enhanced reactivity in aqueous microdroplets remains unresolved, with interfacial electric fields (IEFs) frequently proposed as catalytic drivers. Here, we present a quantum-mechanical, spatially resolved characterization of the electric field at air-water...

Reach and engagement in the ECAIL trial targeting socially disadvantaged families across the COVID-19 pandemic and cost-of-living crisis: A mixed-methods implementation study

Background The ECAIL trial, launched in 2017, was designed to evaluate a multicomponent intervention for childhood obesity prevention among hard-to-reach families. At a maternity hospital in Lille, France, healthcare providers screened pregnant women experiencing social vulnerabi...

Influence of Exchange–Correlation Functional on Machine-Learned Interatomic Potentials’ Accuracy: A Systematic Study of Borosilicate Glasses

Abstract Machine-learned interatomic potentials (MLIPs) have emerged as a strategy to accelerate molecular simulations, offering the promise of quantum chemical accuracy at a cost close to that of classical force fields. They are commonly trained on reference data obtained at the...

Neutralization titers reveal the structure of polyclonal antibody responses

The composition of a polyclonal antibody response is hard to measure experimentally but contains vital information about the robustness of immunity. Here, we argue that the statistics of neutralization titers alone can be used to make quantitative predictions about the compositio...

Benchmarking a new urban scheme in the ORCHIDEE 2.2 land surface model

Urban areas change natural surface energy and water balances, yet some land surface models still represent cities as natural surfaces. In this study, we present the development of a one-tile urban scheme for the ORCHIDEE land surface model, designed to improve the representation...

The Composite Spectrum of QSO Absorption Line Systems in DESI DR2

Abstract We present details regarding a composite spectrum of quasar (QSO) absorption line systems. In this composite spectrum, we identify more than 70 absorption lines and observe oxygen and hydrogen emission features at a higher signal-to-noise ratio than any previous study. A...

Radar-vision-V2X fused perception based intelligent control mechanism for service-oriented traffic signals

Traditional traffic signal systems lack the capability to perceive vehicle types and real-time traffic flow dynamics, particularly in identifying priority levels for emergency vehicles. To address this, an intelligent traffic flow decision-making and scheduling system based on ra...

Systemic anticancer therapy for refractory malignant bowel obstruction in advanced cancer patients: a retrospective cohort study

Objectives Malignant bowel obstruction (MBO) is a common but severe complication of advanced cancer. The role of systemic anticancer therapy in patients with inoperable MBO remains poorly defined. This study aimed to assess the efficacy of systemic anticancer therapy in this sett...

MAIA frailty subgroup analysis: long-term follow-up with daratumumab plus lenalidomide/dexamethasone in transplant-ineligible newly diagnosed myeloma

Abstract In MAIA (Daratumumab, lenalidomide, and dexamethasone versus lenalidomide and dexamethasone alone in newly diagnosed multiple myeloma), daratumumab plus lenalidomide/dexamethasone (D-Rd) improved progression-free survival (PFS) and overall survival (OS) versus Rd in tran...

Thickness-Dependent Spintronic Terahertz Emission in Molecular Beam Epitaxy-Grown PtTe2: From Semiconductor to Type-II Dirac Semimetal

Abstract Spintronic THz emitters are the most practical broadband sources, but their performance is constrained by the spin Hall conductivity of the conversion layer. We show that PtTe2, a type II Dirac semimetal, overcomes this limitation through thickness-driven electronic phas...

Antibody-mediated immune surveillance as an organizing axis of gut microbiota structure

Abstract Background The symbiotic interplay between the immune system and the endogenous microbiome is essential for maintaining homeostasis. However, most microbiome research focuses primarily on associations between disease and microbial composition, often overlooking host–micr...

Steric‐Setup Effects on US East Coast Sea‐Level Change

Abstract The extent to which coastal sea levels co‐vary with open‐ocean variability is explored through evaluation of a balanced dynamics framework relating sea level with pressure, density, and velocity along the continental shelf and slope seafloor. Using high‐resolution region...