University of Illinois Urbana-Champaign

Device-Measured Physical Activity, Sedentary Time, and Cardiometabolic Risk Markers in Youth

Importance The evidence for benefits of higher physical activity and lower sedentary time on the cardiometabolic risk profile in youth is based on cross-sectional and small prospective studies. Objective To determine the prospective associations between device-measured physical a...

Generative AI and the balance of effort in group tasks: Appropriate, over-, and under-scaffolding

Generative artificial intelligence (Gen-AI) is increasingly used in higher education, yet its role in collaborative learning remains unclear. This study examines how students use Gen-AI during group lesson-planning tasks in an undergraduate education course. Drawing on Vygotsky’s...

Spatially resolved reaction–diffusion modeling reveals effects of intracellular spatial heterogeneity on yeast galactose network dynamics

Eukaryotic cells are spatially organized into functionally-distinct compartments. This three-dimensional (3D) organization generates intracellular heterogeneities that can modulate regulatory dynamics. Despite this knowledge of subcellular organization, most quantitative gene-reg...

The Role of Socioeconomic Status in the Relation Between Parenting and Child Externalizing Behavior

Abstract Negative and harsh parenting strategies are associated with more child externalizing behavior, while greater parental involvement and positive reinforcement are associated with less child externalizing behavior. However, parenting strategies do not exert the same influen...

Conformationally Switchable Copper(I) Complexes Amplify BODIPY Triplet Photosensitization

ABSTRACT With its potential to surpass the Shockley–Queisser limit, triplet‐triplet annihilation upconversion (TTA‐UC) has been heralded as a powerful solution in direct solar‐to‐fuel energy conversion. TTA‐UC combines low‐energy photons to generate high‐energy states for photoca...

From Rhetoric to Practice: Governance Pathways for Green Infrastructure in Ghana, with Lessons from African and U.S. Tropical Coastal Cities

Urban flooding persists in Ghana’s rapidly urbanizing cities. Although green infrastructure (GI) is recognized in national and metropolitan policy as a complement to conventional drainage, its translation into financed, owned, maintained and monitored infrastructure remains uneve...

Visual Impression of Urban Space: A Systematic Review of Empirical Findings, Challenges, and Opportunities

Studies of visual impression seek to link the visual features of urban spaces with users’ subjective experiences (e.g., perceiving and describing a space as “inviting”). By revealing the relationships between visual characteristics and users’ experiences, such studies can inform...

Modeling Reactions on the Solid–Liquid Interface with Next Generation Extended Lagrangian Quantum-Based Molecular Dynamics

Abstract We present a series of simulations of the oxygen reduction reaction (ORR) using a novel framework for atomistic simulations of surface catalysis under electrochemical bias. The framework makes use of quantum-mechanical extended Lagrangian Born–Oppenheimer molecular dynam...

Automatically Generating ML Compiler Backends from Tensor Accelerator ISA Descriptions

Machine learning (ML) compilers play a key role in enabling high-performance implementations of ML workloads. These compilers use existing CPU and GPU backends to generate device-specific code. In recent years, many tensor accelerators (or AI accelerators) have been designed to f...

Techno-Economic Analysis of Low-Temperature Alkaline Ammonia Electrolysis Using a Gross Margin Model

Abstract Ammonia has become a promising hydrogen carrier because of its high hydrogen density, established infrastructure, and easier liquefaction compared with hydrogen. Although thermal cracking is currently the main method for extracting hydrogen from ammonia, it is energy int...

Evaporating universes

Recent work by Headrick, Sasieta and myself provides an extension of the HRT formula for asymptotically flat spacetimes. I use this formula to construct a holographic model of black hole evaporation in four-dimensional asymptotically flat spacetimes using Brill-Lindquist (BL) wor...

Fast and Furious: Long-term orbit integrations with collocation integrator Lobbie

Abstract Efficient and accurate numerical integration methods are fundamental to studying long-term Solar system dynamics, where numerical errors can accumulate over billions of orbital periods. In this work, we investigate the performance of our modification of Lobbie, a Lobatto...

ARQ: A Mixed-Precision Quantization Framework for Accurate and Certifiably Robust DNNs

Mixed precision quantization has become an important technique for optimizing the execution of deep neural networks (DNNs). Certified robustness, which provides provable guarantees about a model’s ability to withstand different adversarial perturbations, has rarely been addressed...

Towards Iterative End-to-End Software Development: A Feature-Driven Multi-agent Framework

Recent advances in large language model agents offer the promise of automating end-to-end software development from natural language requirements. However, existing approaches largely adopt linear, waterfall-style pipelines, which oversimplify the iterative nature of real-world d...

Optimizing multi‐trait selection for profitability in Illinois wheat using a factor analytic mixed model and an economic selection index

Abstract Economic selection indices can improve the efficiency of selection for multiple traits, but they are underutilized in plant breeding due to limited research on the economic values of traits and a lack of well‐documented case examples employing economic indices. This stud...

GUIA uditor : Enabling Post-hoc Child Safety Forensics via Action-Guided GUI Provenance on Mobile Devices

The proliferation of smart devices exposes children to online risks like grooming and financial scams that are deeply embedded within legitimate applications. Current approaches rely on automated prevention and detection, a paradigm that is fundamentally limited by its inherent f...

Targeted suppression of VOCs and particulate matter emissions from desulfurized crumb rubber modified asphalt using kaolin-expanded graphite composite adsorbents

Desulfurized crumb rubber modified asphalt (DCRMA) improves the compatibility and workability of waste-tire rubber in asphalt, but the associated change in fume composition has not been well defined. This study first compared the temperature-dependent emissions of conventional cr...

272. Effects of Dietary Supplementation of Algal Docosahexaenoic Acid on Fecal Characteristics, Fecal Metabolites, Blood Coagulation Parameters and Serum Chemistry of Adult Dogs.

Abstract Algal meal can potentially be used as an alternative to fish oil as source of docosahexaenoic acid (DHA) in canine nutrition. However, there is limited information in the literature on the effects of supplementing algal DHA oil in the diets of dogs. This study aimed to e...

79. Detection of Sow Feeding- and Drinking-related Behaviors in Farrowing Crates Using Oriented Bounding Boxes.

Abstract Sow feeding and drinking behavior during farrowing can provide useful management information, but continuous observation is difficult in commercial systems because of labor constraints and herd size. Camera-based monitoring offers a scalable alternative, although detecti...

Differential prolonged multiomic responses to mRNA and inactivated virus COVID-19 vaccines

Abstract Despite the significant impact of SARS-CoV-2 vaccines in curtailing the spread and severity of COVID-19, comprehensive omics-level understanding of longitudinal host responses remains elusive. We recruited 553 Hong Kong participants receiving two doses of CoronaVac (inac...