Research works

Anomaly-free hyperspherical Hamiltonian spaces for simple reductive groups

In this paper, we provide a complete list of anomaly-free hyperspherical Hamiltonian spaces for simple reductive groups, as well as their conjectural dual spaces in the sense of BZSV duality.

A numerical simulation study on the reduction performance of ship resistance with bionic hydrofoil appendages

With stringent ship energy-efficiency and emission requirements, ship rapidity has gained attention, and Computational Fluid Dynamics (CFD) is key for resistance prediction. Inspired by humpback whale pectoral-fin leading-edge tubercles, this study proposes bionic hydrofoil appen...

Do Children Who Develop Faster Go on to Age Faster in Midlife?

We quantified the association between rate of child development and pace of midlife aging in the Dunedin Study and the Add Health Study. Physical development was quantified in Dunedin participants ( N = 1,037; age 45) using a composite comprised of (1) birth weight for gestationa...

Gouvernance participative et planification du transport ferroviaire : quels enjeux pour les SERM ?

Participatory governance, seen as a key lever to guide and legitimize public action in urban planning and mobility, is at the heart of French Metropolitan Regional Express Services (SERM) projects. However, their specificities - service-oriented, multimodal, multiscale and multis...

Lifts of endomorphisms of Weyl algebras modulo p2

Let φ denote a k -algebra endomorphism of the n -th Weyl algebra A n ( k ) over a perfect field k of positive characteristic p . We prove that φ can be lifted to an endomorphism of the Weyl algebra A n ( W 2 ( k ) ) over the Witt vectors W 2 ( k ) of length two over k if and only...

Bose-Einstein condensate stars in massive gravity

This study explores the construction, validity and the properties of Boson or Bose-Einstein condensate (BEC) stars under the framework of de Rham-Gabadadze-Tolley (dRGT) like massive gravity, employing the Kuchowicz metric potential to model their internal structure. This gravita...

Biochar amendments in a California salt marsh restoration reduced denitrification and supported distinct microbial community functions

Accelerated sea level rise, combined with human-induced changes to hydrology and sediment transport, threatens the long-term persistence of coastal wetlands. Sediment addition is increasingly used to enhance wetland resilience to sea level rise, and incorporating biochar, a carbo...

Non-stationary time series attribution for heatwaves over Europe

The increasing occurrence of extreme weather events since the beginning of the 21st century has led to the development of new methods to attribute extreme events to anthropogenic climate change. The way in which the extreme event is defined has a major influence on the attributio...

Transitioning late-time cosmology with the Hubble parameterization

We investigate a late-time cosmological model for a homogeneous and isotropic space-time in the Rastall theory. We explore the observational constraints on the Hubble parameter by using the latest cosmological datasets such as cosmic microwave background radiation (Planck), baryo...

Geometry-enforced topological chiral fermions in amorphous chiral metals

Since the prediction and observation of topological Weyl semimetals (chiral TSMs), there have been enormous efforts to characterize further condensed matter realizations of chiral fermions. These efforts were dramatically accelerated by the subsequent discovery of a profound link...

High-Precision Differential Radial Velocities of C3PO Wide Binaries: A Test of Modified Newtonian Dynamics (MOND)

Wide-binary stars, separated by thousands of AU, reside in low-acceleration regimes where Modified Newtonian Dynamics (MOND) predicts deviation from Newtonian gravity. However, Gaia radial velocities (RVs) lack the precision to resolve the small velocity differences expected in t...

On the Lavrentiev Gap for Manifold-Valued Maps

Abstract We characterize necessary and sufficient conditions ensuring approximation by smooth maps in the Sobolev space $$W^{1,\varphi }$$ W 1 , φ between suitable compact manifolds, where the prototypical example of Young function $$\varphi $$ φ is the double-phase integrand.

Teaching, selling or both? Exploring presumed influence effects of edu-ads on parents’ mediation intent

Purpose Edu-ads represent a hybrid form of media in which an educational lesson is packaged in an ad-like, persuasive format. This study aims to investigate parents’ perceptions of the effect of edu-ads on children and their subsequent mediation intentions. Design/methodology/app...

Efficacy of Transdiagnostic Emotion‐Focused Therapy in the Treatment of Depression and Anxiety Symptoms: A Quasi‐Experimental Study

ABSTRACT Objectives This study is among the first to assess the efficacy of teletherapy‐delivered Transdiagnostic Emotion‐Focused Therapy (EFT‐T) for university students with depression and anxiety symptoms. Methods Therapy was offered in a 12–16 session format. Forty students wi...

The Next Frontier in Open Access: Transforming Library Workflows

The evolution of Open Access (OA) business models has outpaced the development of efficient and effective workflows within academic libraries. OA publishing agreements have introduced operational complexities that extend beyond financial commitments. Libraries are increasingly ab...

Directional centroid trajectories reveal shifting fire activity across Brazilian biomes

Abstract Understanding how fire activity reorganizes across space is key to interpreting long-term interactions among climate variability, land-use change, and integrated fire management in Brazil. Yet this reorganization is difficult to read directly: annual maps of millions of...

Social simulations with large language model risk Utopian illusion

Reliable simulation of human behaviour is essential for explaining, predicting, and intervening in our society. Recent advances in large language models (LLMs) have shown promise in emulating human behaviours, interactions, and decision-making, offering a powerful new lens for so...

To collapse or not to collapse: Halo evolution with self-interacting dark matter mass segregation

Surprisingly compact substructures in galaxies and galaxy clusters, as well as field halos, observed by gravitational lensing could be challenging to explain solely on the basis of collisionless dark matter (DM). To investigate such objects, recent studies have focussed on the gr...

Learning-Based Data-Assisted Port-Hamiltonian Control for Free-Floating Space Manipulators

A generic data-assisted control architecture within the port-Hamiltonian framework is proposed, introducing a physically meaningful observable that links conservative dynamics to all actuation, dissipation, and disturbance channels. A robust, model-based controller combined with...

The Composite Spectrum of QSO Absorption Line Systems in DESI DR2

Abstract We present details regarding a composite spectrum of quasar (QSO) absorption line systems. In this composite spectrum, we identify more than 70 absorption lines and observe oxygen and hydrogen emission features at a higher signal-to-noise ratio than any previous study. A...