Research works

Catalytic Regulation of Reaction Networks in High-Concentration 5-Hydroxylmethylfurfural Oxidation

Abstract The selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is a key catalytic transformation for the production of renewable polymers. Although near-quantitative FDCA yields can be achieved under dilute conditions, increasing substrate...

The Mathematics of Twisted Waves: How signals are decomposed into waves — and what happens when the world of the signal is a Möbius strip. (High-school level)

This document explains the mathematics of a real research project using high-school tools: trigonometric functions, addition formulas and the trigonometric form of complex numbers. The starting point is the Fourier decomposition as a "basis and coordinates" idea, followed by an o...

Personalized breathing recommendations for anxiety relief: a data-driven exploratory approach focusing on feasibility

Breathing exercises are widely used to alleviate anxiety, but most interventions use fixed templates of inhalation, exhalation, and repetition. This study preliminarily explores the feasibility of data-driven personalization of breathing recommendations for general individuals. W...

Path-Dependent Diagenesis and Facies-Controlled Reservoir Quality in Lower Cretaceous Fan-Delta Sandstones, North Yellow Sea Basin: A Model for Superimposed Rift Basins

The Lower Cretaceous fan-delta sandstones in the North Yellow Sea Basin underwent a distinctive polyphase burial trajectory, offering a natural laboratory to investigate path-dependent diagenesis and its impact on reservoir quality evolution in superimposed rift basins. Integrati...

Enhancement of Pediocin Production in Pediococcus pentosaceus SNSS18 by Exogenous Amino Acids and Nucleobases: A Mechanistic Elucidation

Amino acids and nucleobases, as essential nutrients for lactic acid bacteria (LAB), play a pivotal role in their growth and metabolism. However, their specific effects on pediocin production and the underlying regulatory mechanisms have not yet been elucidated. This study aimed t...

E8 Phi-Scaled Temporal Lattice for Adaptive Causality in Multi-Domain Processing — E8 Intelligence Research

By dynamically adjusting phi-scaled rotations across the 240 E8 root vectors during 132Hz oscillations, the lattice encodes and propagates causality-specific states in parallel dimensions. This allows non-local information transfer to adapt its geometric topology in real-time, mi...

Monitorando e (Re) conhecendo Abelhas sem Ferrão em Rio Rufino (SC)

O monitoramento e o reconhecimento de abelhas sem ferrão no município de Rio Rufino (SC) partem do problema observado de que a comunidade local frequentemente avista esses insetos, mas não consegue identificá-los, confundindo-os com outros insetos e desconhecendo espécies e a pró...

The Burden Shift Is Not Enough: Rebuttal Technology and Deterrence in Artificial Intelligence Liability

This working paper formalizes the evidentiary margin in artificial-intelligence liability. It models a two-stage game in which a developer chooses unobservable safety investment and harm realizes probabilistically, comparing claimant-burden strict liability, negligence, and stric...

Understanding zoonotic spillover interfaces for the design of a One Health education intervention: a qualitative baseline study from rural Thailand

Abstract Background Prevention of zoonotic spillover requires an understanding of how human, animal, and environmental interactions shape risk in everyday life. Efforts have focused largely on surveillance and response rather than on primary prevention informed by lived experienc...

Influence of substrate heating for microstructure and physical properties of Cu-Al-O thin film

We prepared Cu-Al-O thin films on silicon and quartz substrate by direct current (DC) reactive magnetron sputtering method. The substrate temperatures varied at room temperature (~25℃) and 200℃ with post-annealed at 900℃ in argon atmosphere for 3h. The results indicate that the f...

Screening of ILs by COSMO ‐ RS and machine learning for extraction of n‐propanol/n‐propyl ether: Mechanism and process

Abstract N‐propyl ether (DPE) is produced via acid‐catalyzed dehydration of n‐propanol (NPA), forming a minimum‐boiling azeotrope. Conventional separation processes face challenges in both efficiency and product purity. In this work, a multi‐scale approach was employed to develop...

Long-Term Corticosteroid-Induced Ocular Hypertension Model Produced by Topical Rinderon-A Ointment Application

Adverse effects associated with prolonged corticosteroid therapy are strongly associated with increased intraocular pressure (IOP), which may progress to iatrogenic glaucoma and irreversible blindness if left untreated. Developing reliable animal models is essential for investiga...

BioShield-12: A 3D-Printed Conformal Chest Shield for Wireless 12-Lead ECG Acquisition

Reproducible electrode placement remains a critical, unresolved challenge in wearable ECG systems, where manual electrode attachment introduces inter-session positional error that degrades signal morphology and compromises multi-lead representation. Although the 12-lead clinical...

DETERMINANTS OF HEAVY METALS IN POULTRY FEEDS AND THEIR ENVIRONMENTAL IMPACT IN CALABAR METROPOLIS

Heavy metals were determined in selected poultry feed samples used as starter, grower, finisher, and layer from Calabar metropolis. The selected feeds were labeled and sieved through a 2mm sieve. The dried samples were digested in a mixture of tri-acids of HNO3, H2SO4, HCLO4 to o...

Nanocarrier-mediated targeting of chemotherapy-induced DPP4 enhances T cell infiltration and improves cancer immunochemotherapy

Cancer immunotherapy has transformed cancer treatment, yet its efficacy remains limited by a “cold” tumor immune microenvironment (TIME) characterized by poor T cell infiltration. Induction of immunogenic cell death (ICD) improves T cell infiltration by promoting the release of T...

Enhanced Hydrophobicityof PMMA via Bulk Copolymerizationwith a Bulky Siloxane Methacrylate Monomer

Abstract Poly(methyl methacrylate) (PMMA), also known as acrylic glass, is widely used for its excellent light transmittance but suffers from poor hydrophobicity. To improve this, this paper proposes a streamlined, one-step modification process via bulk polymerization. Methacrylo...

Living Labs as Adaptive Intermediary Structures Embedded Within Regional Innovation Systems: A Conceptual Framework for Social Transformation in Peripheral Regions

Regional development increasingly occurs under conditions of uncertainty, complexity, and accelerating socio-economic change, creating a need for adaptive approaches that support learning and transformation. Although Living Labs have gained prominence as environments for co-creat...

Gene network analysis predicts the primary regulators of ABA-dependent transcriptional activation and repression in Populus roots

Abscisic acid (ABA) acts as a key signalling molecule that mediates plant responses to environmental cues as well as plant growth and development. Stress-induced and developmental changes in ABA content trigger a myriad of post-transcriptional and transcriptional events. Yet, ABA...

DESIGN AND IMPLEMENTATION OF AN AUTOMATED FEEDBACK EVALUATION SYSTEM FOR TEACHING GENERAL MATHEMATICS

The traditional method for evaluating student feedback in teaching general mathematics at Abia State College of Education, Technical, Arochukwu is manual and time-consuming. This study aims to design and implement an automated feedback evaluation system to improve the process’s e...

Quantitative Assessment of Tongue Atrophy in Amyotrophic Lateral Sclerosis Using Transoral Tongue Ultrasonography ( TOTU ): A Retrospective Single‐Center Study

INTRODUCTION/AIMS: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease accompanied by bulbar dysfunction, in which tongue atrophy contributes to dysarthria and dysphagia. Conventional tongue assessments rely on inspection, palpation, or electrophysiological testing...