Research works

THEMIS: spin axis magnetic field reconstruction

Abstract. The Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission investigates the coupling between the solar wind and Earth's magnetosphere using five identical spinning spacecraft. Each spacecraft rotates at a predefined rate to stabilize it and...

Generically log smooth families via generators and relations

Abstract Let $$f:X \rightarrow \mathbb {A}^1_t$$ f : X → A t 1 be an affine flat morphism of finite type, and let $$V = f^{-1}(0)$$ V = f - 1 ( 0 ) . Then, we obtain a morphism of log schemes $$f:(X|V) \rightarrow (\mathbb {A}^1_t|0)$$ f : ( X | V ) → ( A t 1 | 0 ) . In this arti...

Envisioning Mortgage Futures

This paper explores how open banking and algorithmic profiling are reshaping mortgage lending in the UK. Drawing on interviews with lenders, brokers, technology developers and borrowers, it examines how transaction data, behavioural analytics and predictive modelling are being us...

Interannual and seasonal evolution of supraglacial drainage systems on Nivlisen Ice Shelf, East Antarctica

Abstract. Supraglacial channel networks (SCNs) represent critical components of the surface drainage system on Antarctic ice shelves, facilitating the redistribution of meltwater, including into and out of supraglacial lakes, potentially influencing ice-shelf stability. However,...

Multilevel phylogenetic inference of syntactic harmony in Indo-European

Abstract One of the most well-established typological universals is that languages tend to order the grammatical head and its dependents consistently. This harmonic principle has been attributed to cognitive benefits that facilitate language processing and learning efficiency. Ho...

Human-centred design approaches to tsunami mitigation under sea level rise in Kesennuma, Japan

Abstract. Human-centred design (HCD) is increasingly prioritised as studies show human experience is critical in infrastructure use, and recent policies call for more socially responsive design. Tsunami impacts intensify as sea level rise (SLR) raises baseline water levels and re...

Free-space and satellite-based quantum communication: Principles, implementations, and challenges

Satellite-based quantum communications represent a critical advancement in the pursuit of secure, global-scale quantum networks. Leveraging the principles of quantum mechanics, these systems offer unparalleled security through Quantum Key Distribution and other quantum communicat...

Physics-informed deep learning links geodetic data and fault friction

Fault slip modeling, based on laboratory-derived friction laws, has significantly enhanced our understanding of fault mechanics. Agreement between model predictions and observations supports the hypothesis that observed slip diversity, including fast earthquakes and slow transien...

Sleep forms flexible context representations in toddlers

Abstract Sleep consolidates episodic memory through a hippocampus-dependent process in adults. Whether and how sleep supports memory consolidation during early life, when hippocampal function is immature, remains unclear. Here, we examined effects of sleep on the consolidation of...

One-dimensional elastoplastic models with isotropic hardening as differential inclusions in primal form

To improve the numerical simulation of rockfall protection barriers, this work addresses an extension of a one-dimensional model for elastoplasticity using a friction element and a spring in series, to include isotropic hardening and unilateral behavior. We reformulate the result...

Block-fitness modeling of the global air mobility network

Abstract Accurate representations of origin-destination (OD) passenger flows on the World Air Transportation Network (WAN) are fundamental inputs to models of global mobility, epidemic risk, and infrastructure planning. However, OD data are largely commercial and proprietary, the...

On a Mullins–Sekerka model for the growth of active droplets modelling protocells: Stability analysis and numerical computations

Mullins–Sekerka models with chemical reactions can lead to scenarios where droplets grow, become unstable, split, grow and undergo further division. These grow and division cycles have been proposed as a model for protocells and are believed to play a fundamental role in living s...

The Wanted Extension of Fujii and Tsurumaru’s Formula for the Spectral Radius of the Bell-CHSH Operator

Abstract This paper is motivated by a recent paper of Yuki Fujii and Toyohiro Tsurumaru in which they established a beautiful formula for the spectral radius of the Bell-CHSH operator on finite-dimensional Hilbert spaces. To tackle the operator on infinite-dimensional spaces, the...

Physics-Informed Deep-Operator Learning for Computational Hydraulics Modeling

Abstract Traditional two-dimensional (2D) hydraulic models face significant computational challenges (e.g., long computing times) that limit their use in applications that are time-sensitive or require many model evaluations. This study presents a physics-informed deep-operator n...

Synoptic and regional-scale meteorological controls of stratus altitude in the Namib Desert

Abstract. In the Namib Desert, fog is an essential water source and occurs when and where advected marine stratus clouds intersect with the land surface. However, the meteorological controls of the cloud base height are still insufficiently understood. This study aims to develop...

Continuous-time noise mitigation in analogue quantum simulation

Abstract Analogue quantum simulators offer a promising route to explore quantum many-body dynamics beyond classical reach in the near term. However, their vulnerability to noise limits the accuracy of simulations. Here, we establish a continuous-time framework for mitigating nois...

Economic Status and Decision-Making Behavior: The Cost of Cognitive Control

Economic poverty entails material deprivation and life unpredictability, imposing heavier external constraints on low-income individuals’ goal pursuit than on their higher-income counterparts. We hypothesized that relative economic disadvantage fosters situation-driven decision-m...

Local approximations of global Hamiltonian from inclusion of algebras

A bstract We write down the global Hamiltonian of conformal field theory (CFT) in finite volume in terms of the modular Hamiltonian of the vacuum reduced to a local ball-shaped region, and use it to propose local approximations to the global Minkowski Hamiltonian in quantum field...

Combined sewer overflows attributable to wet weather season contributing to pharmaceutical pollution: a case study in northern Spain

The use of combined sewer systems is associated with frequent overflow events and discharges of untreated wastewater containing micropollutants, including active pharmaceutical ingredients (APIs). The aim of this study was to evaluate the impact of weather-related factors on the...

On matrix product factorization of Cayley graphs

We study when the adjacency matrix of a Cayley graph factors as the product of two adjacency matrices of Cayley graphs. Let $G$ be a finite group and let $U\subseteq G\setminus \{e\}$ be symmetric. Writing $A(G;U)$ for the adjacency matrix of the Cayley graph of $G$ with respect...