Research works

Exhaustive Nonexistence of Circulant Ramsey(5,5;42/43) Colorings and Exploratory Symmetry-Constrained Search

We exhaustively exclude ordinary circulant Ramsey(5,5;42) and Ramsey(5,5;43) colorings. We also report exploratory symmetry-constrained and unconstrained tabu searches. Values 84 for K42 and 129 for K43 are the best values produced by the stated runs, not literature records or pr...

GRB 211211A and the emerging class of long GRBs from mergers

This concise review places GRB 211211A at the center of a discussion on the association between long gamma-ray bursts and kilonovae, and on the central engines capable of powering extended emission. We present the key observations, compare prompt and extended emission models, eva...

Statistical discrimination of Guatemalan jadeitite sources using LA-ICP-MS trace element and petrological data

While tracing the geological provenance of Maya jadeitite-jade is key to understanding Mesoamerican exchange and extraction, distinguishing between the north (NMM) and south (SMM) Motagua sources presents significant challenges. This difficulty is due to shared mineralogical trai...

Target DNA-Mediated Plasmonic Coupling and Assembly Kinetics of Gold Nanorods for Label-Free Nucleic Acid Detection

Abstract DNA-mediated assembly of plasmonic nanoparticles provides a versatile platform for controlling interparticle separation, thereby enabling a systematic investigation of plasmonic coupling and localized electromagnetic hotspot formation. Here, we report the sequence-specif...

Thermoresponsive mineral grout for autonomous oxygen isolation in underground coal pillars

A thermo-responsive mineral-based grout composite (GC) was developed for rapid sealing of fracture networks in underground coal pillars, aiming to eliminate oxygen ingress and prevent spontaneous combustion in goaf areas. Coal spontaneous combustion triggered by air leakage poses...

Exponentiation of higher-point and higher-genus Virasoro conformal blocks in the semiclassical limit

A bstract A long-standing conjecture claims that Virasoro conformal blocks exponentiate in the semiclassical limit c → ∞ with h / c finite. However, this has been proven only for four-point blocks on the sphere and one-point blocks on the torus. Here we extend the proof to genera...

Hydrographic CTD profiles capturing the onset of near-surface stratification in Southwest Greenland fjords during two consecutive spring 2025 field campaigns

Abstract. In situ hydrographic observations in Greenland fjords remain sparse, particularly during late winter and early spring, despite their importance for Arctic freshwater export, glacier–ocean interactions, and the seasonal development of stratification. A major limitation o...

Non-Invasive Voice-Based Early Detection of Parkinson’s Disease via Spectral Feature Analysis and Machine Learning Techniques

Background: Parkinson’s disease (PD) is a chronic, slowly progressive, and irreversible neuropathological disorder characterized by the progressive degeneration of specific neurons responsible for producing neurotransmitters essential for motor control. Although PD primarily affe...

Uneven TCR chain pairing constraints govern epitope recognition

Combinatorial pairing of independently recombined T cell receptor (TCR) α- and β-chains is central to diversifying the TCR repertoire. Although sequence motifs in one chain correlate with epitope recognition, the extent to which a single chain dictates specificity remains unclear...

Learning aligned EEG representations with subject-specific encoders

Cross-subject EEG decoding promises more training data, but it also exposes neural networks to strong inter-subject distribution shifts. We study whether task supervision and architecture alone can learn subject-aligned representations. We replace a shared EEG encoder with subjec...

Tracking upper respiratory microbiome dynamics in patients admitted to intensive care unit: insights from a pilot study

Patients in intensive care units (ICUs) are highly susceptible to nosocomial infections, yet data on respiratory microbiome dynamics in non-ventilated patients with respiratory failure remain limited. In this pilot study, upper respiratory tract (URT) microbiota in 21 ICU patient...

Super-Resolution-Assisted Farmland Boundary Extraction from Medium-Resolution Satellite Image: A Real-ESRGAN and YOLO Segmentation Framework

The study addresses the issue of insufficient spatial resolution in remote sensing images for farmland boundary identification in precision agriculture. It proposes an innovative framework based on Real-ESRGAN super-resolution reconstruction and YOLO instance segmentation, as wel...

Hilbert's Basis Theorem for Poisson Ore Extensions

ABSTRACT We prove an analogue of Hilbert's basis theorem for Poisson Ore extensions and Poisson Laurent Ore extensions. We also obtain corresponding results for iterated Poisson Ore extensions and iterated Poisson Laurent Ore extensions associated to commuting Poisson‐pairs. Fina...

Multidimensional nutritional assessment in Crohn’s disease: Cross-sectional comparison of active disease and remission

ABSTRACT Malnutrition is common in Crohn’s disease (CD), and its assessment requires multiple tools. Comprehensive evaluation of nutritional status in a population with CD, predominantly characterized by metabolic phenotype, was inadequately reported. This study evaluated the nut...

Language Asymmetry in Multilingual Clinical AI: A Benchmark Study of LLM Performance in ICU Decision Support Across English, Slovak, and Ukrainian

Background. Most clinical LLM testing and benchmarking is carried out in English, on cloud infrastructure, and under conditions that bear little resemblance to a real hospital. How these models perform in other languages, and under substantially constrained compute — particularly...

Scalable design of single-photon emitters integrated on silicon with a crossed-waveguide architecture

The scalable integration of deterministic telecom-band single-photon sources into silicon photonic circuits is a critical challenge for quantum information processing, primarily bottlenecked by the stringent alignment tolerances of conventional hybrid coupling schemes. To overcom...

LDA-YOLO11: a lightweight detail-attention detector for edge-deployable road surface defect detection

Abstract Road surface defects, such as cracks, pavement damage and potholes, shorten road service life and affect driving safety and preventive maintenance. Existing lightweight object detectors are computationally efficient but still suffer from missed detections and unstable lo...

Special and General Relativity from the Finite-QEC Substrate: The Propagation Clock, the Equivalence Principle, and the Horizon Ledger

Corrected version. This revision retracts the physical identification of the nearest-neighbour simple-cubic Bloch mode with the asymptotic photon. The exact Bloch group velocity is excluded inside its own 10-100 MeV support by Fermi GRB 090510 timing: the effective quadratic scal...

Cathedral: Governance Discoveries from the Development of a Governance-Coupled Execution Architecture

Abstract This paper presents a set of governance discoveries derived from the iterative development of Cathedral, a governance-coupled execution kernel. While individual implementation components evolved across multiple architectural generations, several governance principles rem...

Statistics of Solar Filament Mass Based on CHASE Sun-as-a-star Spectroscopic Observations

Abstract Filaments are cool and dense plasmas suspended in the hot corona of the Sun and other stars. Accurately estimating their masses is of great significance for understanding subsequent eruptions and induced space weather effects, but it remains hindered by their intrinsic g...