Université de Strasbourg

Polymer Knots in Thin Slit-Confined Melts: Thickness Dependence, Local Effects, and Stiffness

Abstract We study how confinement affects topology and conformations in flexible and semiflexible slit-confined polymer melts of varying thickness h. The knotting probability exhibits a maximum at intermediate thicknesses near the bulk radius of gyration h ≈ Rg,bulk, vanishes at...

Prognostic performance of the systemic immune-inflammation index in hospitalized patients with COVID-19: a multicenter emergency department study

Abstract Introduction The systemic immune-inflammation index (SII) has been proposed as a simple prognostic biomarker in COVID-19, but its performance relative to routinely available inflammatory markers and its incremental value beyond clinical predictors remain uncertain. We ev...

Hexacatenar Columnar Liquid Crystals with a Perfluoronaphthalene-Core: Synthesis, Self-Organization, Charge Transport and Photoluminescence

Abstract Columnar liquid crystals featuring one-dimensional charge transport and self-assembly are of considerable interest for organic electronic applications such as organic field-effect transistors (OFETs) and organic light-emitting diodes (OLEDs). Fluorination emerges as a po...

Linking geothermal reservoir and lithium distribution: A handheld spectroscopy approach on deep wells in the Upper Rhine Graben

The Upper Rhine Graben (URG) hosts a deep geothermal system characterized by fluid circulation within fractured reservoirs at the sedimentary-basement interface. This study investigates cuttings from two deep geothermal wells in the Strasbourg area to assess how reservoir heterog...

Early Transition Metal Carbene Complexes as Photocatalysts: Unveiling Dual-Emission and Photo-reactivity

Abstract Photoactive transition metal complexes are playing a pivotal role in synthetic chemistry and application technologies, such as photocatalysis and light-emitting diodes, yet they often depend on precious metals. Early-transition-metal photosensitizers offer a promising, y...

A ribosomal pseudouridine drives an oncogenic translation program

Dynamic ribosome heterogeneity has emerged as a potential layer of translational regulation, but whether variation in ribosomal RNA (rRNA) modification stoichiometry can selectively control the translation of mRNAs with shared encoded features remains unclear. Here we show that S...

Memory on ice: spatial memory is retained over a 9-month hibernation period in Columbian ground squirrels

Abstract Memory allows animals to utilize ecologically relevant information, yet whether it endures through prolonged metabolic shutdown is poorly understood. We tested spatial memory retention in a long-term, free-living hibernator, the Columbian ground squirrel (Urocitellus col...

Sensitive reverse transcription-digital droplet PCR-based discrimination of hepatitis delta virus RNAs reveals differential effects of interferon-α on viral RNA species

Hepatitis delta virus (HDV) replication relies on the production of distinct viral RNA species, including genomic (HDV-G), antigenomic (HDV-AG) and mRNAs (HDV mRNAs), which differ in abundance and function. However, the lack of sensitive and quantitative approaches allowing their...

Modeling Phase Separation in Polymer-Derived Silicon Carbonitride Ceramics through Extended Machine Learning Molecular Dynamics

Abstract Polymer-derived ceramics combine the thermal stability of ceramics with the versatile properties of carbon domains, but modeling their atomic-scale evolution during processing remains elusive because of the limitations of traditional computational methods. To address thi...

Spatiotemporal variation of the chick mass-brood size trade-off in the little owl

Abstract Resources are limited and cannot be used for multiple functions simultaneously, leading to trade-offs between life-history traits. The detection of such trade-offs depends on resource acquisition (total amount of resources) and allocation (distribution of resources betwe...

Developing an accessible judgement bias task for non-human primates

Objective and efficient methods for investigating animal's mental states are important for advancing animal welfare research. Behavioural observations and physiological measures provide valuable information but may not fully capture affective states. Judgment Bias Tasks (JBTs) of...

Platelet GPVI drives fibrotic lung remodeling

Platelets are a major reservoir of bioactive mediators, including growth factors such as transforming growth factor β1 (TGF-β1), that regulate vascular repair and tissue remodeling. Beyond these classical functions, platelets also participate in inflammatory hemostasis through ac...

Quantum propagation for Berezin–Toeplitz operators

We describe the asymptotic behaviour of the quantum propagator generated by a Berezin–Toeplitz operator with real-valued principal symbol. We also give precise asymptotics for smoothed spectral projectors associated with the operator in the autonomous case; this leads us to intro...

The Path-product in Morse Homology with differential graded coefficients

We will use the tools developed in the article [5] to give a Morse-theoretical description of a string topology product on the homology of the space of paths in a manifold Y with endpoints in a submanifold X and a module structure on this homology over the Chas–Sullivan ring of Y...

Development of ultrafast and radiation-hard GAGG for the next-generation of High-Energy Physics calorimeters

The evolution of High Energy Physics (HEP) toward future collider experiments with High Luminosity (HL), such as the HL-LHC, requires the development of scintillating materials that combine high density, excellent radiation hardness and an ultrafast response. While Cerium-doped G...

Cyclotomic Euler–Mahonian polynomials

The cyclotomic Eulerian polynomials and the cyclotomic Mahonian polynomials have each been the subject of extensive studies in Combinatorics, with particular attention to their signed versions. In contrast, the joint study of cyclotomic Euler–Mahonian polynomials has received far...

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...

Pro-apoptotic polymers for neutrophil-induced inflammation modulation: from screening to therapeutic potential

Human polymorphonuclear neutrophils (PMNs) are pivotal in the initiation and resolution of inflammation, playing an essential role in maintaining tissue homeostasis and facilitating repair. This study investigates how polymers influence PMNs apoptosis, a favourable step for the r...

Measurements of the production of W$$^{\pm }$$ and Z$$^0$$ bosons in pp collisions at $$\sqrt{s} = 13$$ TeV

Abstract Measurements of the production of the W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons at midrapidity in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV with ALICE at the Large Hadron Collider (LHC) are presented. The W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons are detected via their (di)e...

Quantum information scrambling in strongly disordered Rydberg spin systems

Despite the fact that power-law interactions occur in a plethora of physical systems, their many-body dynamics is far less understood than that of nearest-neighbor interacting systems. Here, we study information scrambling in strongly disordered spin systems with power-law intera...