Centre National de la Recherche Scientifique

Unleash $Q$! cohomology, localization, and interpolation in Parisi-Sourlas supersymmetry

Parisi—Sourlas supersymmetric models are known to undergo dimensional reduction; that is, their physics is captured by models in two fewer dimensions. In this work, we revisit dimensional reduction, providing new arguments and reformulating existing proofs in terms of the cohomol...

Neutron elastic scattering at $$\varvec{30.8}$$ MeV on $$\varvec{^{\text {nat}}\textrm{Ce}}$$

Abstract Elastic scattering of fast neutrons at an incident energy of 30.8 MeV on a natural cerium target was measured during an experiment conducted at the Neutrons For Science facility at GANIL-SPIRAL2. This is the first measurement on cerium using incident neutron energy above...

Will work for sardines: 20 years of animal-borne ocean observing by Australia’s Integrated Marine Observing System (IMOS) Animal Tagging Facility

The world’s ocean stores ~90% of the excess heat generated by anthropogenic global warming, making sustained ocean observations essential for understanding physical, biological and climate processes. Here, we describe how the Integrated Marine Observing System (IMOS) Animal Taggi...

Trace Elements in Total Atmospheric Deposition Directly Measured Over the Caribbean Region: Natural Versus Anthropogenic Sources and Geographic Origin

Abstract Dust, sea salt, and anthropogenic and biogenic particles in total atmospheric deposition are sources of essential elements that can significantly impact biogeochemical cycles in the Atlantic Ocean and in islands of the Caribbean region. This unique 41‐month data set reco...

Mapping structural heterogeneity in three-dimensional biophotonic gyroid networks using position-resolved small-angle X-ray scattering

Abstract The wings of select Papilionid and Lycaenid butterflies contain a three-dimensional gyroid network of a solid cuticle phase in air. In butterfly scales, gyroid networks are optically interesting, as they create the green colour observed in the wings of these butterflies....

Occurrence and controls of ~ 1 Hz waves in Mercury’s magnetosphere: insights from MESSENGER observations

<title>Abstract</title> Mercury’s magnetosphere is highly dynamic, with processes occurring on much shorter spatial and temporal scales than at Earth due to its weak magnetic field and proximity to the Sun. Wave-driven transport of energy and momentum is a key manifestation of th...

Yu-Shiba-Rusinov-assisted Andreev transport in a molecular junction between superconductors

Magnetic impurities in superconductors host Yu-Shiba-Rusinov (YSR) bound states, whereas weak superconducting junctions sustain subharmonic charge transport through multiple Andreev reflections (MAR). We explore these phenomena using a molecular-scale junction created by placing...

PLCG2 downregulation impairs synaptic function and increases Alzheimer’s disease hallmarks in neuronal cultures

We developed a high-content screening to investigate how Alzheimer’s disease (AD) genetic risk factors may affect synaptic mechanisms in rat primary neuronal cultures. Of the target genes identified, we found that Plcg2 downregulation in mouse dentate gyrus neurons consistently d...

A framework to compare the performance of spatial disaggregation methods of statistical climate downscaling in South America

Study region Chile and South America. Study focus Climate change is simulated at a coarse scale with General Circulation Models. Impact and regional studies require downscaling to increase spatial resolution. Several downscaling methods exist, but most studies do not analyze or c...

Genetic distance and pollinator sharing shape divergence in floral volatiles in closely related dioecious Ficus species

Abstract Premise Floral scent is central to host recognition in the fig–fig wasp mutualism, yet how scent divergence relates to pollinator sharing among closely related dioecious Ficus species remains unclear. Methods We analyzed volatile organic compounds (VOCs) from four pairs...

Development of antibacterial wipes coated with nanofibers made from nisin and polyvinyl alcohol

Nosocomial infections caused by Staphylococcus aureus ( S. aureus ), a major pathogen that colonizes human skin, are a significant cause of morbidity and mortality. Effective management of S. aureus is essential, especially given the rising threat of antibiotic resistance. Innova...

Tailoring Liquid Crystalline Self‐Assembly and Photophysical Properties of Unsymmetrical Fluorenones via Polar Terminal Groups

ABSTRACT In this work, a series of novel unsymmetrical fluorenone derivatives bearing various head groups (H, Br, NO 2 , NH 2 , and CN) was synthesized and investigated with respect to their mesomorphic and photophysical properties. Depending on the head group, SmA, N, or SmC pha...

Macroevolutionary dynamics of Androsace s.l . (Primulaceae) across the Northern Hemisphere

Abstract Mountain regions of the Northern Hemisphere harbor exceptional biodiversity, yet the processes underlying species diversification and migration among these regions remain poorly understood. This study investigates the macroevolutionary dynamics of Androsace s.l ., a genu...

Evaluating urban heat adaptation strategies for extreme heatwaves in complex terrain: A case study of Grenoble, France

Urban heat adaptation strategies are critical for mitigating the impacts of ex- treme heat events in cities, particularly as climate change exacerbates their intensity and frequency. This study evaluates a set of adaptation strategies during the 2023 heatwave in Grenoble, France,...

Hydroelastic slamming of tubular structures: Experimental and theoretical studies

Hydroelastic slamming loads are of primary importance for the design of marine and offshore structures involving slender flexible structures. In this study, a combined experimental and theoretical investigation of the water impact of tubular structures is carried out. First, a de...

Glycosphingolipids are essential entry factors for non-influenza orthomyxoviruses

Thogotoviruses and quaranjaviruses are arthropod-borne orthomyxoviruses that circulate widely in wildlife and domestic animals and include several zoonotic members. Despite their close phylogenetic relationship to influenza viruses, the mechanisms underlying their replication rem...

Thermodynamic characterization of Lewis acid–base interactions on carbon nanomaterials: Validation and Universality of the Hamieh five-parameter model

Understanding the Lewis acid–base properties of carbon materials is essential for predicting adsorption behavior, catalytic performance, and interfacial interactions. In this work, eight carbon materials—graphene, graphene oxide, reduced graphene oxide, untreated carbon fiber, ox...

Atmospheric forcing and ocean preconditioning for dense shelf water cascading in the northwestern Mediterranean

<title>Abstract</title> Dense shelf water cascading (DSWC) in the northwestern Mediterranean Sea occurs due to the densification and overflow of shelf water in winter. This process ventilates the deep basin with waters that can be denser than those generated by open-ocean convect...

Seed-based functional connectivity of the anterior cingulate cortex and the posterior insula predicts placebo analgesia in Parkinson’s disease

Chronic pain affects up to 80% of people with Parkinson’s disease (PD) and remains difficult to treat. Functional brain connectivity can predict analgesic response in other conditions, but has not been explored in PD. To assess whether baseline resting-state functional connectivi...

Visible-Light-DrivenPorphyrin/ZnO Nanohybrids forUltrasensitive Room-Temperature Triethylamine Sensing

Abstract Real-time monitoring of toxic triethylamine (TEA) at room temperature remains a significant challenge for metal oxide chemiresistors due to their typically high-power consumption and thermal requirements. This work presents a highly responsive, visible-light-activated ga...