Centre National de la Recherche Scientifique

Half-Flips are 5-Avoidable

A word contains a half-flip if it contains non-empty factors [Formula: see text] and [Formula: see text] where [Formula: see text]. Fici reports a non-constructive proof of the existence of an infinite word over a finite alphabet avoiding half-flips and asks for the size of the s...

Crystallographic and Spectroscopic Evidence of High-Pressure Phase Transition of l -Histidine Methyl Ester Dihydrochloride

Abstract We investigate the dependence of the structural and vibrational properties of l-histidine methyl ester dihydrochloride (LHMED) on high-pressure conditions in the range of 0.0–8.2 GPa. Combining single-crystal X-ray diffraction (SCXRD) and Raman spectroscopy, we found a r...

Agonistic interactions and vocalizations among Procellariiformes in multi-species feeding aggregations, observed through bird-borne cameras

Abstract Marine predators frequently aggregate at food sources, where interactions can range from cooperative group hunting to interference competition for resources. To investigate interactions at feeding aggregations among procellariiforms, we equipped wandering albatrosses Dio...

Estimating relapse time distribution from longitudinal biomarker trajectories using iterative regression and continuous time Markov processes

Abstract Biomarker measurements obtained by blood sampling are often used as a non-invasive means of monitoring tumour progression in cancer patients. Diseases evolve dynamically over time, and studying longitudinal observations of specific biomarkers can help to understand patie...

Deep learning reveals ecological decoupling and rate heterogeneity in Hymenoptera wing evolution

Quantifying biomorphological evolution and integrating phenotypic data into large-scale ecological and evolutionary studies are often limited by the scalability, subjectivity, and poor interpretability of existing methods. We introduce HAIKA (Hierarchical Attention-based Interpre...

Change in the demographic dynamics of a spatially structured population of a colonial waterbird after a perturbation affecting a large colony

Localized perturbations may affect spatially structured populations (SSPs) as a whole by altering dispersal between patches. Yet, such large-scale consequences remain poorly understood and may depend on the proportion of the SSP affected by the perturbation. Here, we used correla...

Energy expenditure of bonobos across their locomotor repertoire

Unlike quadrupedal mammals, primates use diverse locomotor modes adapted to arboreal environments. Such diversity of movements challenges allometric models, which underestimate energetic costs by focusing on steady-state walking. To address this, we combined ethological and biome...

Ecosystem service gradients at protected area borders reveal multiple patterns and prevalent management conflicts

Protected areas cannot halt biodiversity loss in isolation; integrating them with surrounding human-dominated landscapes is critical. However, this integration is challenged by substantial landscape heterogeneity at protected area borders, making it difficult to determine cross-b...

Gene-rich fungus gnat germline-restricted chromosomes are largely transcriptionally quiescent

Germline-restricted chromosomes (GRCs) constitute a unique class of chromosomes confined to germ cells. Arising in multiple evolutionarily distant lineages, GRCs have been identified in three insect families (non-biting midges, gall midges, and fungus gnats), each within the orde...

Low-energy electron collisions with BH+

BH+ ions are expected to play an important role in boron-containing plasmas relevant to fusion environments such as ITER, where low-energy electrons drive a variety of inelastic and reactive scattering processes. In particular, dissociative recombination, vibrational excitation,...

Pure Shift 2D NMR with Water Suppression for Structural and Dynamic Analysis of Flexible Molecules

Abstract Achieving high-resolution proton NMR spectra in aqueous media remains a major challenge for structurally complex and conformationally flexible molecules, where homonuclear scalar couplings and limited chemical-shift dispersion lead to severe spectral congestion. Here, we...

Evaluating the roles of testosterone and sex-linked genes in territorial aggression of sex-reversed XY females in the African pygmy mouse

Sex differences in social aggression are widespread across the animal kingdom, with males typic-ally displaying greater territoriality. While this dimorphism has traditionally been attributed to sex hormones, sex chromosomes can also contribute to it independently of hormonal inf...

Highlights from an early base camp in Beringia 13,800 years ago: Shég’ Xdaltth’í’ and the Late Pleistocene peopling of Alaska

Human dispersal across the Bering Land Bridge (BLB) was a key event in the peopling of the Americas, but Beringia’s archaeological record remains poorly understood. In response, the Shég’ Xdaltth’í’ site in interior Alaska has been the focus of a multi-disciplinary study since 20...

Sampled-Based Guided Quantum Walk: Non-variational quantum algorithm for combinatorial optimization

We introduce SamBa-GQW, a novel quantum algorithm for solving binary combinatorial optimization problems of arbitrary degree with no use of any classical optimizer. The algorithm is based on a continuous-time quantum walk on the solution space represented as a graph. The walker e...

Celastrol and Its Derivatives in Breast, Ovarian, and Cervical Cancer: Molecular Targets, Signalling Networks, and Nanocarrier-Based Delivery

Celastrol, a quinone methide pentacyclic triterpenoid obtained mainly from the roots of Tripterygium wilfordii Hook. f., forms covalent, often reversible, adducts with cysteine thiols in regulatory proteins, which underlies its multi-targeted action. This review summarises the pr...

Decoding multiway gravitational junctions in AdS in terms of holographic quantum maps

A bstract It has been shown that multiway junctions gluing n copies of locally AdS 3 spacetimes ( n ≥ 2) can be described by n − 1 strings obeying non-linear Nambu-Goto equations coupled by Monge-Ampère like terms. Here we study how such junctions along with their stringy degrees...

Recurrent PDGFRB-Mutations in the Epithelioid Variant of Fibrous Papules

Fibrous papule (FP) is a common benign dermal mesenchymal lesion presenting as a solitary, dome-shaped papule mostly located on the nose. The morphologic spectrum is broad, and a number of variants have been described, including hypercellular, clear cell, pigmented, pleomorphic,...

DREAM D6.9_RP2 update of DMP

The purpose of the DREAM project's Data Management Plan (DMP) is to plan the management of the data which is being generated, collected, and processed in the framework of the project. The DMP ensures the data is managed according to the Horizon Europe FAIR principles (Findability...

Resolution Dependence of the Climate Feedback Parameter in Km‐Scale Climate Models

Abstract Global storm‐resolving models (GSRMs) provide new opportunities to investigate the climate response to warming with explicitly resolved deep convection. However, the limited number of existing studies has so far precluded the systematic assessment of similarities and dif...

The enhanced capabilities of mid-infrared limb emission sounding to observe stratospheric aerosol injection geoengineering

Abstract. Using a model-based pseudo-reality (PR) future scenario and realistic pseudo-observations (POs) representative for a proposed satellite mission concept (CAIRT – the Changing-Atmosphere Infra-Red Tomography explorer), we analyse the capabilities of a high-spectral-resolu...