Research works

Synthesisand Magnetism of Silver Chromium SelenideSpinels

Abstract Chalcogenide spinels exhibit electronic and magnetic properties that are tunable through lattice occupancy and composition. Here, we report the first synthesis of spinel-phase Ag2Cr2Se4 and AgCr2Se4 and demonstrate an oxidation-induced ferro-to-ferrimagnetic transition a...

D-POAF® Enterprise AI Governance Framework

D-POAF® Enterprise AI Governance Framework Extends the Decentralized Proof-Oriented AI Framework (D-POAF®) to the enterprise scale. It provides a structured operating model for governing the full portfolio of AI systems running across an organization, their criticality, autonomy...

Policies for the operation of an ambulance fleet under uncertainty based on a new preparedness metric

Two important decisions in the management of an ambulance fleet are ambulance selection decisions and ambulance reassignment decisions. Ambulance selection decisions determine what to do when an emergency call arrives (such as choosing what ambulance to dispatch to the emergency...

Resolving Hidden Stoichiometriesin Bacterial ProteasomeActivator (Bpa)-Substrate Complexes by Cryo-EM and Charge DetectionMass Spectrometry

Abstract Bacterial proteasome activator (Bpa) is a regulatory particle within the Mycobacterium tuberculosis (Mtb) proteasome system that facilitates ATP-independent substrate engagement and delivery to the 20S core particle (CP) for degradation. The best characterized Bpa substr...

Building a Physics-Aware AI Ecosystem for Solid-State Hydrogen Storage Materials

Abstract Hydrogen storage remains a central bottleneck for scalable hydrogen energy systems due to the multiscale and coupled nature of the thermodynamics, kinetics, and microstructural evolution of hydrogen storage materials (HSMs). Although artificial intelligence (AI) has acce...

MicroRNA Dysregulation in HPV-Driven Cervical Cancer: A Review of Oncoprotein-Targeted Signaling Pathways

MicroRNAs (miRNAs) have been associated with the initiation, development, and progression of various cancers, including cervical cancer. Their involvement in cervical cancer is extensively documented, as they influence critical biological pathways, including apoptosis, cell cycle...

The Executive Access Model (EAM): A Classroom Framework for Understanding Variability in Student Performance

The Executive Access Model (EAM) is an applied instructional framework that translates a constraint based control architecture of human functioning into observable classroom practice. It explains variability in student performance as changes in executive access, defined as the mo...

Human papillomavirus vaccine acceptability in Cameroon: a systematic review and meta-analysis

Abstract Background Human papillomavirus (HPV) vaccination is a key strategy for cervical cancer elimination. In Cameroon, HPV vaccine was introduced into the expanded program on immunization in 2020. However, synthesized evidence on vaccine acceptability is needed to guide polic...

High frequency of urban new particle formation on the Tibetan Plateau: quantifying formation rates, growth rates, and CCN production

Abstract. New particle formation (NPF) strongly influences aerosol number size distributions and cloud condensation nuclei (CCN), yet its characteristics and climatic relevance in high-altitude urban environments over the Tibetan Plateau (TP) remain poorly constrained. We conduct...

CogRAG: Tackling Heterogeneous Cognitive Demands in RAG via Stratified Retrieval and Reasoning

Retrieval-Augmented Generation (RAG) frameworks typically process all queries through a one-size-fits-all pipeline, ignoring the heterogeneous cognitive demands of different tasks. This cognitive-blind approach causes two failure modes: cascading errors when low-level factual gap...

Clinical efficacy of unilateral biportal endoscopic spinal decompression for lumbar intraspinal pneumatosis

<title>Abstract</title> Study design: Retrospective observational study. Objective To analyze the short-term clinical efficacy of unilateral biportal endoscopic (UBE) spinal decompression in the treatment of lumbar intraspinal pneumatosis. Background Lumbar intraspinal pneumatosi...

Unitary representations and von Neumann’s continuous geometries

We prove that the unit group of a nondiscrete irreducible, continuous ring, in the sense of John von Neumann, does not admit any nontrivial unitary representation continuous with respect to the strong operator topology.

DQIS — Addendum I: Temporal Stratification of Tail Dependence Risk

DQIS — Addendum I: Tail Dependence — What the Correlation Coefficient Does Not Tell You (V23, August 2026). Companion to Consolidated Framework V39 and Objections Register V38. The mathematical supplement covering the one place where the central claim is soft: channels that look...

Structural and Functional Cardiac Reverse Remodeling After Bariatric Surgery: A Prospective Comparison of Sleeve Gastrectomy and Roux-en-Y Gastric Bypass

OBJECTIVE: Obesity is associated with characteristic cardiac remodeling, including left ventricular (LV) hypertrophy, concentric geometry, and subclinical myocardial dysfunction. Bariatric surgery induces reverse cardiac remodeling; however, it remains unclear whether structural...

An Independent Predictor of Technical Success in Patients with Chronic Total Occlusions: The Atherogenic Index of Plasma

OBJECTIVE: The atherogenic index of plasma (AIP) has been increasingly associated with coronary artery disease and adverse cardiovascular outcomes. This study aimed to evaluate the clinical relevance of AIP in predicting technical success in percutaneous coronary intervention (PC...

D-POAF® Implementation Kit - Starter Pack v1.1

D-POAF® Implementation Kit - Starter Pack v1.1 This package contains the official D-POAF® Implementation Kit - Starter Pack v1.1, a set of five ready-to-use operational templates designed to support teams in adopting the Decentralized Proof-Oriented AI Framework (D-POAF®). The ki...

DQIS — Distributed Quorum-Based Independent Immune Surveillance: A Theoretical Framework for Byzantine Fault Tolerance for Multi-Channel Immune Surveillance

DQIS — Distributed Quorum-Based Independent Immune Surveillance. Consolidated Framework (V39, August 2026). The question. Can Byzantine fault tolerance — building reliable systems from unreliable, independently-failing parts — be made useful to tumour immune surveillance? The cla...

OptiMat Alloys: a FAIR, living database of multi-principal element alloys enabled by a conversational agent

The FAIR principles have transformed how computational materials data and workflows are shared, yet existing repositories can only serve pre-computed entries — their coverage is perpetually incomplete and cannot adapt to new questions on demand. We built OptiMat Alloys, a large-l...

The benefits of green roofs for urban water management and thermal regulation: Insights from Catania (Sicily, Italy)

This study provides a comprehensive field-based assessment of the hydrological and thermal performance of three semi-intensive green roof (GR) technologies under Mediterranean climate conditions in Catania (Sicily, Italy). The experimental system, covering approximately 900 m2, w...

Controlling rigid-wing airborne wind energy systems during circular flight without exact path following

Abstract. We propose a feedback architecture that enables effective flight control of rigid-wing airborne wind energy systems during circular-pattern reel out. The controller performs well with only proportional-integral regulators, thereby presenting a significantly simpler solu...