Research works

Thermodynamics of the Heisenberg XXX chain with negative spin

A bstract We study the thermodynamics of the isotropic Heisenberg XXX spin chain with negative spin, focusing on the case s = –1. The model is equivalent to the quantum lattice nonlinear Schrödinger (NLS) model and appears as an effective theory in deep inelastic scattering in hi...

ArbiterSTG v1.0 — Structural Trace Governance

Machine-Dream Syntax (MDS) formalizes execution as primary and meaning as derivative, but prior work leaves unresolved how execution residue persists, circulates, or collapses once interpretation, authority, and institutional pressure enter the system. ArbiterSTG v1.0 (Structural...

Gödel-symmetric backgrounds and explicit spacetime symmetry breaking

Abstract Explicit diffeomorphism breaking in gravitational theories with nondynamical background fields is constrained by the compatibility between the modified Einstein equations and the contracted Bianchi identities. We implement an isometry-based approach in which the backgrou...

Robust topological quantum state transfer with long-range interactions in Rydberg arrays

We develop a theoretical framework for fast, robust and high-fidelity topological quantum state transfer in one-dimensional systems with long-range couplings, motivated by chains of Rydberg atoms with dipole-dipole interactions. Such long-range interactions naturally give rise to...

Distribution network hosting capacity evaluation through a novel Power Index concept

Accelerating integration of distributed renewables is straining distribution networks, where voltage rise and thermal overloads emerge once hosting capacity is exceeded. A novel Power Index (PI) is introduced that unifies voltage and loading margins into a single, interpretable i...

From pixels to vectorized cadastral boundaries: Deep learning-based automated delineation of property boundaries in the Netherlands

Cadastral mapping remains one of the most resource-intensive components of land administration, while large parts of the world still lack complete and up-to-date cadastral information. In this context, remote sensing and deep learning can support the rapid production of initial c...

Phong‐Rodrigues Extrinsic Vector‐Field Processing

Abstract We introduce a new extrinsic discretization of tangent vector fields on triangle meshes that is continuous, with bounded derivatives that are continuous almost everywhere, supporting pointwise evaluation and integration of differential operators. We achieve this by build...

Exploring the feasibility of an air sensor array for real-time detection and characterization of VOCs

Abstract. Volatile organic compounds (VOCs) are an important class of atmospheric chemical species that can be directly harmful to human health and contribute to the formation of hazardous secondary products. Measurements of ambient VOCs are typically made using “offline” techniq...

Direct Detection of Hydrogen Reveals a New Macroscopic Crustal Water Reservoir on Early Mars

Abstract The next great leap in Martian exploration is the return of samples to Earth. Maximizing their scientific value requires non‐destructive analytical techniques for early three‐dimensional characterization. Neutron computed tomography (CT), highly sensitive to hydrogen, co...

K Index: A Self-Regulation Protocol for the Calibration of Personal Discourse

This article presents the K Index, a minimalist conceptual model that formalizes the relationship between the justification underlying an opinion and the degree of conviction with which it is expressed. Defined as the ratio K = μ / S, the framework functions as a metacognitive “c...

The practical impact of numerical variability on structural MRI measures of Parkinson’s disease

Abstract Numerical variability is rarely quantified in neuroimaging despite many measures relying on subtle morphometric differences across individuals. We instrumented FreeSurfer 7.3.1, a widely used neuroimaging pipeline, to simulate numerical differences across computational e...

Specifying wind gusts based on wind speed increments and forecasting gustiness

Abstract Wind gust forecasting is crucial for mitigating damage to people and property. We define gusts as rapid wind speed changes exceeding application-specific thresholds, and propose forecasting gustiness, that is, the number of gusts per time unit. For the forecasting, we em...

Development of a multi-species luciferase-based double-antigen ELISA for the detection of antibodies against influenza A virus H5 clade 2.3.4.4b

ABSTRACT The highly pathogenic avian influenza viruses of subtype H5N1 represent a major threat to animal and public health. The current panzootic with H5 clade 2.3.4.4b has caused numerous, widespread outbreaks in various domestic and wild avian species with high mortalities, ma...

Cube Space as a Named Coordinate Chart: Re-proof of the 15-Embedding, Visualization Fold, and 37D Gap Bridge

Cube Space Design asserted a universal 15-dimensional coordinate system for system state, semantic proximity, a 15D→3D visualization at 99.8% preservation and 95.8% efficiency, incremental frames, and a 69.4× combined improvement via a 37-dimensional gap bridge. Those claims are...

SDMBCv2 (v1.0): correcting systematic biases in RCM inputs for future projection

Abstract. Regional Climate Models (RCMs) offer enhanced spatial resolution and a more realistic depiction of local climate processes. However, they often inherit systematic biases from their driving Global Climate Models (GCMs), which can compromise the accuracy of downscaled cli...

Some results related to Macaulay's Theorem about Hilbert functions and applications

Let [Formula: see text] be a homogeneous ideal in the polynomial ring [Formula: see text], where [Formula: see text] is an algebraically closed field of characteristic zero. Macaulay’s Theorem provides constraints on the Hilbert function of [Formula: see text] or [Formula: see te...

Structural basis of fatty acid activation and transport by human FATP2

Fatty acid transport proteins (FATPs) are responsible for efficient uptake of fatty acids (FAs), essential biomolecules that play critical roles in development and growth. However, the lack of three-dimensional structures of FATPs has hindered our understanding of their mechanism...

Controls on Solar Wind Entry Identified Through Wind–ACE Heavy‐Ion Diagnostics

Abstract Solar wind (SW) entry into the magnetosphere occurs through several mechanisms, but their dependence on the properties of different ion species is unknown. We compare measurements from Wind‐STICS (magnetosphere) with ACE‐SWICS (L1) to test for any preferential entry betw...

MaizeGDB Phylostrata Tool: Exploring evolutionary origins of maize proteins

Abstract Motivation Phylostratigraphic analysis identifies the evolutionary origins and level of conservation of proteins, facilitating research in evolutionary biology and comparative genomics. Results We developed the MaizeGDB Phylostrata Tool, a custom web application that ena...

The International Labour Organization and the North–South divide over global migration governance (1971–1975)

Drawing primarily on primary sources, this article applies the policy cycle framework to examine the debates within the International Labour Organization (ILO) from the early to the mid-1970s on the regulation of international labour migration. It argues that these discussions cr...