University of Oklahoma

The dual effect of urban areas on supercell storms

Abstract. The effect of urban land use on convective storms with deep and persistent rotating updrafts (supercell storms) is systematically investigated using ensembles of idealized numerical simulations. A supercell is simulated over a flat domain containing a circular city surr...

Physics-Informed Machine Learning Framework for Predicting Joule Heating Activated Shape Recovery in Carbon Fiber Reinforced Shape Memory Epoxy Composites

Shape memory epoxy composites recover a programmed shape when Joule heating drives the matrix through its glass transition, and a key challenge for these smart materials is predicting the recovery angle at drive currents outside the tested range. In this work, three models were c...

Interfacial Confinement Enables Dual Hosting of Sulfur Mustard and Mustard Sulfoxide in NU-1000

Abstract Zirconium-based metal–organic frameworks have emerged as promising materials for the capture and detoxification of chemical warfare agents, but the molecular mechanism by which a hierarchical MOF differentiates a hydrophobic reactant from its oxidized product remains inc...

CLAIR: A Reference-Free Framework for In Situ Defect Detection in Fused Filament Fabrication Using Contra-Lateral Sampling and Inpainting Residuals

Manufacturing defects occur routinely in the fused filament fabrication (FFF) process, and a single undetected failure converts machine time, filament, and operator attention into scrap. This paper presents CLAIR (Contra-Lateral Inpainting Residuals), a reference-free monitoring...

Microplastics as Ecological Filters Across Food Systems: From Microbial Selection and Antimicrobial Resistance to Human Health Risks and Mechanisms

Microplastics are increasingly detected throughout food-production systems, from agricultural soils and irrigation waters to aquaculture environments, food-processing facilities, and final food products. Beyond their role as contaminants and microbial carriers, plastic particles...

Disruptions of MICP Bonds between Spherical Cone Grains

Abstract Microbially induced calcium carbonate precipitation (MICP) technology has garnered considerable interest in the area of sand stabilization. However, few studies have examined the influence of grain morphology on intergrain MICP bonds. In this study, we carry out grain-sc...

Gender Bias in Bribe Solicitation: Evidence From Firm–State Interactions

Previous research has shown that women-led businesses are less likely to bribe officials to bypass administrative burdens, assuming that this is because women are less susceptible to corruption. We uncover an additional mechanism that focuses on the beliefs and practices of corru...

北美高校中文教材与 《国际中文教育中文水平等级标准》 语法匹配情况研究

提要 本文以 《国际中文教育中文水平等级标准》 (2021) 中的 “语法等级大纲” 为依据, 选取北美高校广泛使用的 11 本中文教材, 考察其语法条目的覆盖情况、 等级分布和语法种类。 研究发现, Cheng 和 Tsui 教材平均匹配率最高, 尤其体现在一至三级; 普林斯顿大学出版社教材匹配率较低, 但覆盖等级范围更...

Validating Wing Biopsies for Blood‐Borne Pathogen Characterization in Bats

Wildlife surveillance is critical for tracking disease emergence, characterizing pathogen diversity, and assessing spillover risks. Blood-borne pathogens are of particular interest for such efforts due to their global distribution, broad host taxa, and zoonotic potential. Despite...

Werner helicase inhibitor for advanced microsatellite instability solid tumors: a phase 1 trial

Abstract Werner syndrome helicase (WRN) is a synthetic lethal target for microsatellite instability (MSI) cancers. In part 1 of this ongoing first-in-human, phase 1 trial, escalating doses of RO7589831 (VVD-133214), a first-in-class, WRN covalent inhibitor, were evaluated in 88 p...

The Mysterious Case of Iron in XMPs: Anomalous High log(Fe/O) Observed in Extremely Metal-Poor Galaxies HSCJ1631+4426 and SDSSJ0811+4730

Abstract We present integral field spectroscopic observations of two local extremely metal-poor galaxies (XMPs), HSCJ1631+4426 and SDSSJ0811+4730, obtained with the Keck Cosmic Web Imager (KCWI) over 3545 − 5529 Ã at a spectral resolution of R ~ 3600, capturing bright nebular emi...

Socrates, Ovid, and Claude walk into a bar: using generative AI tools to support learning about the ancient Mediterranean

Abstract In the Fall term of 2024, I taught a class on the ancient Mediterranean, with a focus on Plato, Ovid, and Roman satire. The goals of the class include exposure to epic, philosophy, and humour from antiquity; honing critical thinking skills; and consideration of how human...

The anthropogenic fingerprint on emerging infectious diseases

Abstract Emerging infectious diseases are a hallmark of the Anthropocene 1,2 . Human-driven ecosystem changes and human–wildlife–livestock contact can drive the emergence of zoonotic and vector-borne diseases 3–5 , but how much these processes shape landscapes of outbreak risk is...

A conceptual framework for teaching generative AI

Abstract Generative AI (GenAI) can create tremendous value for organizations; however, many organizations struggle to hire professionals with the knowledge needed to integrate GenAI into their operations. Business schools have the opportunity to develop students who can meet this...

An inverse problem for the magnetic fractional Schrödinger equation with nonlinear potential

Abstract We study an inverse problem for a magnetic fractional Schrödinger equation with both a linear potential q ( x ) $q(x)$ q left parenthesis x right parenthesis and a nonlinear potential a ( x , u ) $a(x,u)$ a left parenthesis x comma u right parenthesis analytic in u . The...

The Onychomys pangenome reveals the unique molecular adaptations that confer toxin resistance

Abstract Background Predatory grasshopper mice ( Onychomys sp.) have co-evolved resistance to painful and lethal neurotoxins produced by their scorpion prey. Previous studies have reported that structural and functional modifications of the sodium channel Nav1.8 block the effect...

The Effects of Schema-Based Instruction on Students’ Performance Solving Additive and Multiplicative Compare Word Problem Types

This study investigated the effects of schema-based instruction on students’ performance solving additive and multiplicative compare word problem types. Four students in the fifth grade participated; two had learning disabilities and two received tertiary services within a multi-...

Impact of SRR and CSRR placement strategies on microstrip antenna array performance: a comprehensive numerical and experimental investigation

Abstract This work presents a comprehensive numerical and experimental investigation of metamaterial-based split-ring resonator (SRR) and complementary split-ring resonator (CSRR) unit-cell placement strategies in a 2-element microstrip antenna array operating at 10 GHz. Unlike p...

Users' Solicitation of Disclosure When Accounting Standards Restrict Managers' Discretion Over Financial Reporting: Evidence From Conference Calls

ABSTRACT We examine how GAAP‐based restrictions on managers' discretion over financial reporting influence financial statement users' efforts to acquire disclosure from management. During the question‐and‐answer part of a firm's conference call, we find that GAAP‐based restrictio...

Sealed flexible containment strategy for long-term storage and low-outgassing to fuel in-space manufacturing of frontally polymerizable composite

Despite having better processibility, durability, and thermomechanical performances, thermoset composites raise concerns of limited storage life, resin volatility, and property consistency when considered for in-space manufacturing. The large costs in time, energy, and equipment...