Université Paris Cité

Hyperbolic form factors for Yukawa interactions, and applications to the Earth

Abstract We define the hyperbolic form factor of a density distribution as its bilateral Laplace transform, related by duality or analytic continuation to its ordinary form factor. For a sphere it is given by $$\Phi (x \!= \! kR) =\langle \,\cosh \,\vec k.\vec r\,\rangle = \langl...

Counterion-Dependent Charge Transport in Ultrathin-Film Molecular Junctions

Abstract Counterions are ubiquitous in charged molecular films, yet their influence on charge transport in solid-state molecular junctions (MJs) remains insufficiently understood. Here, we investigate how embedded counterions regulate conductance in MJs based on ultrathin molecul...

Exploring needs and priorities in digital health management for rare disease patients and their caregivers: A mixed-methods study

Rare diseases affect millions worldwide and are associated with long diagnostic delays, limited access to treatments, and substantial challenges in daily care and coordination. Digital health technologies, including mobile apps, tele health, and data‑sharing platforms, offer oppo...

Indirect comparative efficacy and safety of tirzepatide vs semaglutide for the treatment of obesity or overweight in patients without type 2 diabetes

Tirzepatide is a once-weekly, glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 (GLP-1) receptor agonist (RA) for obesity treatment. This indirect treatment comparison (ITC) assessed the relative efficacy and safety of tirzepatide versus the GLP-1 RA semagl...

Multi-GNSS clock combination for PPP with an epoch-wise clock alignment and variance component estimation

Abstract Applications of Global Navigation Satellite Systems (GNSS) for positioning, navigation, and timing rely on precise orbit and satellite clock corrections provided by multiple Analysis Centers (ACs) of the International GNSS Service (IGS). To address modeling errors and da...

Semaglutide for Treating Paediatric Craniopharyngioma‐Related Obesity: A Multicentre Case Series

ABSTRACT Aims Obesity is a complication of childhood craniopharyngioma that remains difficult to treat. We investigated whether semaglutide was associated with a decrease in BMI among adolescents with craniopharyngioma‐related obesity. Material and Methods This multicentre retros...

Development and evaluation of a quality assessment tool for equality, diversity, and inclusion (QUALITY-EDI) within healthcare research

Implementing equality, diversity, and inclusion (EDI) in healthcare research is critical to ensuring findings are translatable and provide the greatest benefit to patients who need it most. A quality assessment scoring tool (QUALITY-EDI) was developed to evaluate the conduct of E...

BRET-Based Mitochondrial Subcompartment Localization Biosensors Reveal the Impact of Pesticides and Food Additives on Mitochondrial Protein Localization

Abstract The last decade has witnessed a marked increase in interest in mitochondria, whose dysfunction leads to the development of multiple diseases. Mitochondria are unique as they are highly compartmentalized organelles that are composed of two closely apposed membranes. Here,...

Serum GFAP and Age Accurately Distinguish AQP4 ‐ IgG Positive and Double Seronegative NMOSD From MOGAD After a Recent Attack

BACKGROUND: Serum neurofilament-light chain (sNfL) and glial fibrillary acidic protein (sGFAP) are associated with multiple sclerosis (MS) activity. This study aimed to identify patient- and disease-level determinants of sNfL and sGFAP and to evaluate their ability to support dif...

Deidentified data and analysis code for "LLM-assisted assessment item writing in medical education: a randomized pilot trial

This repository contains analysis code underlying the psychometric analyses of a randomized pilot study comparing LLM-assisted and conventional medical assessment item writing. It includes item-level psychometric outcomes, faculty-level aggregated outcomes used for exact permutat...

Impact of a Specialized Care Pathway for ICU Patients With Disorders of Consciousness: Observational Insights From an Expert Center

ABSTRACT Background Management of lasting disorders of consciousness (DoC) is complex and sometimes requires referral of patients to an expert team. We aimed to evaluate the impact of such specialized expert assessment through the description of a single‐center experience. Method...

Functional central limit theorem for topological functionals of Gaussian critical points

We consider Betti numbers of the excursion of a smooth Euclidean Gaussian field restricted to a rectangular window, in the asymptotics where the window grows to Rd. With motivations coming from topological data analysis, we derive a functional central limit theorem where the vary...

An infinite-times renewal equation

In neuroscience, the time elapsed since the last discharge has been used to predict the probability of the next discharge. Such predictions can be improved taking into account the last two discharge times, and preferentially more. Such multi-times renewal processes arise in many...

Deterministic mean field games on networks and related optimal control problems

We study deterministic mean field games and related optimal control problems, with finite time horizon and a network as state space. An agent controls her velocity and, when she occupies a vertex, she can either remain still or enter any adjacent edge. The costs are continuous in...

Adaptive multilevel stochastic approximation of the value-at-risk

Crépey, Frikha and Louzi (Finance Stoch. (2025) 1015–1074) introduced a multilevel stochastic approximation scheme to compute the value-at-risk of a financial loss that is only simulatable by Monte Carlo. The best complexity of the scheme is in O(ε−52), ε>0 being a prescribed acc...

2D theoretically twistable material database

The study of twisted two-dimensional (2D) materials, in which twisting layers create moiré superlattices, has created opportunities for investigating topological phases and strongly correlated physics. The broader potential of a seemingly infinite set of twistable 2D materials re...

Are older adults in China living longer happy years? A cohort-based multistate analysis, 2002–2018

Abstract China’s rapid population ageing raises the question of whether added years of life are also happy years. Using data from the Chinese Longitudinal Healthy Longevity Survey (2002–2018), we applied a cohort-based multistate life table method to estimate partial-cohort happy...

Two-dimensional topological quantum chemistry and catalog of topological materials

Two-dimensional (2D) topological materials host symmetry-protected, disorder-robust edge states central to quantum technologies. Yet they remain scarce compared with their 3D counterparts. We adapted the topological quantum chemistry formalism to layer groups and studied the band...

Symptomatic primary aortic mural thrombus: Findings after 6 months of oral anticoagulation

Background: Primary aortic mural thrombus (PAMT) is defined by an aortic thrombus in the absence of underlying aortic disease. Management relies on anticoagulation, with or without surgery, but optimal treatment duration remains uncertain. We evaluated clinical and radiological o...

Probiotics and Risk of Death, Necrotizing Enterocolitis, and Sepsis in Very Preterm Infants

Importance Probiotics are reported to benefit preterm infants, but population-based clinical evidence is limited. In 2020, the Swedish Neonatal Society issued a national recommendation to supplement very preterm infants (28 weeks 0 days’ to 31 weeks 6 days’ gestation) with probio...