Université Grenoble Alpes

Modulating Function‐Based Algebraic Observer for Conformable Fractional‐Order Systems

ABSTRACT We propose a finite‐horizon algebraic observer for conformable fractional‐order linear systems. The construction combines a conformable integration‐by‐parts identity with unitary modulating functions so that derivatives are transferred from noisy measurements to predesig...

Open Borders, Restrained Change: How Group Permeability Shapes Intergroup Evaluations and Social Hierarchy

Building on Social Identity Theory (SIT), the dimensional compensation model (DCM) suggests that people rely on the Big Two dimensions of social evaluation to manage their group identity: members of low (high) status groups compensate their relative lower (higher) standing compet...

CEO stock ownership and firm default risk

Purpose This study examines the effect of chief executive officer (CEO) stock ownership on firm default risk. While equity-based incentives are expected to align managerial and shareholder interests and enhance firm survival, alternative mechanisms – such as CEO under-diversifica...

Tunnel collapses and adaptive support at rock-soil interfaces under low-to-medium overburden in tectonically disturbed rock masses

Tunnel stability in tectonically disturbed rock masses remains particularly challenging near rock–soil interfaces, where abrupt stiffness contrasts and heterogeneous geological structures can trigger collapse mechanisms that conventional rock mass classification systems do not ad...

Large-scale climate drivers of extreme compound events in the Amazon from interannual to long-term timescales (1982–2024)

Abstract Over recent decades Amazonia has experienced a marked intensification of floods and droughts. The record-breaking 2023–2024 drought, characterized by exceptional heat and dryness, motivates a closer analysis of compound extremes and their large-scale drivers. This study...

Determining a graph from its reconfiguration graph

Given a graph G and a natural number k , the k -recolouring graph C k ( G ) is the graph whose vertices are the k -colourings of G and whose edges link pairs of colourings which differ at exactly one vertex of G . Recently, Hogan et al. proved that G can be determined from C k (...

A CCNA1 Missense Variant Associated With Chromatid Non‐Disjunction in Abnormal‐Headed Sperm and Male Infertility

BACKGROUND: Macrozoospermia is a rare form of teratozoospermia characterized by tetraploids, large-headed spermatozoa with multiple flagella, usually caused by bi-allelic AURKC mutations. The etiology of atypical phenotypes with a lower proportion of large headed spermatozoa and...

Climatology and trends of extreme precipitation in France: evaluation of an explicit-convection regional climate model

Climate change is intensifying the global water cycle, with extreme precipitation events increasing in frequency and intensity at the global scale. While trends in daily precipitation extremes are well-documented, sub-daily extremes – critical for flash flood risk – remain poorly...

Molecular mechanism of calcium inhibition in viral channelrhodopsins

Abstract Viral channelrhodopsins (VCR1s) are giant-virus-encoded light-gated channels permeable to monovalent and divalent cations, including Na + and Ca 2+ ions, and inhibited by millimolar Ca 2+ concentrations. Here, we combine X-ray crystallography, time-resolved UV-vis spectr...

Appendicular Versus Non-Appendicular Community-Acquired Intra-Abdominal Infections: A Post-Hoc Analysis of the PERICOM Multicenter Study

Background: Community-acquired intra-abdominal infections (CA-IAIs) exhibit significant clinical heterogeneity. However, most studies focusing on CA-IAIs do not stratify comparisons by infection site. Methods: This post hoc analysis of the prospective multicenter PERICOM cohort (...

A Baltimore-modified non-TBI conditioning for allogeneic stem cell transplantation in elderly or unfit patients with haploidentical or mismatched donors

Abstract Background: The Baltimore conditioning regimen is nowadays one of the most used reduced-intensity conditioning (RIC) regimens, although access to total body irradiation (TBI) may be challenging in some centers. Objective: The aim of this study was to evaluate the outcome...

InN Nanowires on Si⟨111⟩ and Si⟨100⟩ for Monolithic Short-Wave Infrared (SWIR) Photodetectors

Abstract InN nanowires were grown on Si⟨111⟩ and Si⟨100⟩ substrates by plasma-assisted molecular beam epitaxy using a thin AlN buffer layer at temperatures compatible with the thermal budget limitation imposed by back-end-of-line processing. Reflection high-energy electron diffra...

210Pbex in lacustrine sediments: A half-century global synthesis (1977-2024)

Unsupported 210 Pb ( 210 Pb ex ) is a naturally occurring radionuclide widely used to establish sediment chronologies spanning the past ∼150 years, thereby providing high-resolution temporal frameworks for palaeolimnological reconstructions. Since the late 1970s, numerous hypothe...

Localization coefficients of functions with applications in partial differential equations

Abstract We identify shortcomings in two popular measures of localization of functions: the $$L^p\text {-}L^q$$ L p - L q participation ratio and the mass concentration comparison. We then introduce a novel localization measure for functions on bounded subsets of $$\varvec{R}^d$$...

A Remarkably Similar Oxygen Electronic Structure in CO-Treated CeO2 and Gd-Doped CeO2 Is Revealed by X-ray Raman Spectroscopy

Abstract CeO2 is a key material for catalytic and electrochemical applications due to its ability to store and release oxygen, linked to the formation of oxygen vacancies and the reversible reduction of Ce4+ cations to Ce3+. In this study, the oxygen K-edge was investigated in bu...

Use of cardiac magnetic resonance imaging after hospitalization for acute heart failure: insights from the French nationwide OFICA-2 cohort

Abstract Background Cardiac magnetic resonance (CMR) has a central role in the management of patients with acute heart failure (AHF), but timely access remains heterogeneous. We investigated real-world CMR use in patients hospitalized for AHF and its associations with demographic...

From Bench to Operating Room: A Comparative Study of Tensile and Puncture Tests in Self-Assembled Constructs with Clinical Feedback

Urethral reconstruction is required for a variety of congenital and acquired conditions. Current grafting techniques rely on autologous tissues such as buccal mucosa, which are often limited by donor-site morbidity. Biomaterials could be an alternative. However, they may present...

Perinatal exposure to nano-polystyrene: deleterious imprinting on inflammatory bowel diseases

The extent of production and use of plastics leads to release of nanoplastics (NPL) into the environment, where they undergo weathering that could alter their toxicological properties. NPL enter the human food chain via contaminated food, and food packaging, and within the body t...

Advancing conflict research and response through satellite-derived data

Abstract With armed conflicts at a historic high and attacks on civilians rising 1 , understanding the evolving nature of conflict is a critical research priority. The current paradigm in conflict research relies heavily on text-based data, using fatalities as the primary—and oft...

Mortars and plasters at Herod's Caesarea Maritima: integration of imported and local construction technologies

Abstract Building materials from different architectural elements at Herodian Caesarea Maritima (22–4 BCE ) provide evidence for a variety of compositions tailored to specific construction functions, demonstrating the extent of Roman technological influence on Herod's architectur...