Sorbonne Université

Projecting Impacts of Marine Heatwaves and Their Effects on Long‐Term Changes in Marine Ecosystems Over the 21st Century

ABSTRACT Marine heatwaves (MHWs) are increasing in frequency, duration and intensity under climate change. Although current MHWs trigger broad ecological impacts, such as coral bleaching, mass mortality of seagrass meadows, and declines in important fish stocks, the cascading eff...

Near-Critical Ornstein–Zernike Theory for the Planar Random-Cluster Model

Abstract We develop an Ornstein–Zernike theory for the two-dimensional random-cluster model with $$1 \le q <4$$ 1 ≤ q < 4 that also applies in its near-critical regime. In particular, we prove an asymptotic formula for the two-point function which holds uniformly for $$p < p_c$$...

SN 2024iss: A Multiwavelength Exposé of a Type IIb Supernova with an Early-time Ultraviolet Spectrum and Shock-breakout Constraints

Abstract We present multiwavelength observations and analysis of SN 2024iss, a Type IIb supernova (SN IIb) located at ∼14 Mpc. The first Zwicky Transient Facility detection of SN 2024iss is ∼40 minutes after first light (one of the earliest detections of a SN IIb to date) and a H...

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...

A cross-species atlas platform for comparative neuroscience in teleost fish

Abstract Uncovering general principles connecting neural circuits to behaviour requires comparative brain analyses across species. To advance these efforts, we developed a standardised workflow and a unified brain atlas platform for the quantitative comparison of neural structure...

Emergent memory in cell-like active systems

Active systems across scales, ranging from molecular machines to human crowds, are usually modeled as assemblies of self-propelled particles driven by internally generated forces. However, these models often assume memoryless dynamics. Here, guided by the example of living cells,...

How fluorinated cyclic ether shapes localized high concentration electrolytes

Localized high concentration electrolytes (LHCEs) have emerged as a transformative choice, simultaneously exhibiting good electrochemical stability, sufficiently fast ionic transport, and improved rate capability. The design principle is to dilute the conventional electrolyte wit...

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...

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...

An optimized construction of lie algebra generator pools for variational quantum eigensolvers in chemistry

Abstract Lie algebras are essential mathematical structures used in physics to describe sets of quantum operators. Identifying a minimal set of generators to construct these algebras is a central challenge. The traditional search for such generators relies on greedy construction...

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...

Dual northward overseas radiation from Japanese islands shaped the phylogeography of North-East Asian tree frog

The tree frog Dryophytes japonicus has a broad geographic distribution in northeastern Asia, comprising two major genetically divergent clades whose geographic boundary is located within the Japanese mainland. However, the evolutionary and adaptive mechanisms underlying this wide...

Scalable ground-state certification of quantum spin systems via structured noncommutative polynomial optimization

A fundamental challenge in quantum physics is determining the ground-state properties of many-body systems. Whereas standard variational approaches posit a wave-function ansatz and minimize over the possible states expressible by that ansatz, the problem can alternatively be form...

Designing Accessible Interfaces to Enhance Collective Musical Engagement for and with Children with Autism

Accessible Digital Musical Interfaces (ADMIs) aim to enhance the inclusivity of musical practice by supporting users with diverse needs. This paper focuses on the design and use of ADMIs for and with autistic children. While previous research has highlighted the developmental ben...

Sterile Insect Technique in a n-patch System with Allee Effect and Mass Trapping: Modelling, Analysis and Simulations

Abstract The sterile insect technique (SIT) is a biological control method aimed at reducing or eliminating populations of pests and disease vectors. This technique involves releasing sterilised insects which, by mating with wild individuals, will reduce the target population. In...

Assessing dengue knowledge, attitudes and preventive practices in France and Italy: A cross-sectional study using participatory surveillance cohorts

The dengue virus, transmitted by Aedes mosquitoes, causes an estimated 100–390 million infections annually worldwide. With no treatment available, mitigation and prevention involve reducing mosquito breeding and limiting feeding opportunities. Due to changing climate conditions,...

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...

The Cold-Air Outbreaks in the Marine Boundary Layer Experiment model-observation intercomparison project (COMBLE-MIP) – Part 1: Model specification, observational constraints, and preliminary findings

Models struggle to represent the coupled microphysical, turbulent and radiative processes within widespread, long-lived marine cold-air outbreak (CAO) cloud fields, contributing to forecast and climate biases. Here we combine ground-based and satellite measurements to initialize...

Frequency-dependent shear and bulk viscosity of aqueous and non-aqueous lithium battery electrolytes

Transverse ultrasound was used to examine the frequency-dependent shear viscosities of three lithium bis(trifluoromethanesulfonyl)imide-based electrolytes: aqueous, non-aqueous, and hybrid aqueous-organic solutions. Frequency-dependent bulk viscosities of two of the electrolytes...

Ligand Engineering Controls Near-Infrared Emission, Quantum Efficiency, and Photoluminescence Lifetimes in Dimetallic Ru(II) Complexes

Abstract The exceptional photophysical and electrochemical properties of Ru(II) complexes support broad applications in optoelectronic functional materials and bioimaging, particularly those Ru(II) complexes which show near-infrared (NIR) luminescence. This study reports ligands...