University of Delaware

Walking Speed Can Be Modulated on an Adaptive Split-Belt Treadmill

Adaptive treadmills (ATMs) that change speed based on the users’ gait mechanics can allow for healthy stride-to-stride variability observed during overground walking while maintaining the benefits of traditional treadmill training for gait rehabilitation. To enable unilateral mod...

Nanoscale Dipolar Fields in Artificial Spin Ice Probed by Scanning NV Magnetometry

Abstract We investigate dipolar coupling fields in two square-lattice artificial spin ice (ASI) systems with different lattice constants using scanning probe microscopy based on a single nitrogen-vacancy (NV) center in diamond. This technique offers nanoscale spatial resolution,...

Nonlinear Freezing of Vibrational Polariton Transport via Mesoscale Simulations

Abstract Two-dimensional real-space imaging of vibrational polariton transport in planar Fabry–Pérot microcavities is numerically simulated via the mesoscale cavity molecular dynamics approach, which self-consistently propagates∼2×104 realistic molecular simulation cells on a tw...

Gender Minority Stress, Testosterone, and Blood Pressure Responses to Stress in Transgender and Nonbinary Adults

Trans and nonbinary adults assigned female at birth (TNBF) are at elevated cardiovascular risk, an effect proposed to occur secondary to testosterone use. However, gender minority (GM) stress may also contribute to cardiovascular risk. Therefore, we examined the relative associat...

Integrating waste heat and biomass energy in a three-entropy state framework optimized by emergy-carbon-neural network for sustainable buildings

This study addresses the urgent need for low-carbon transformation in the construction sector by proposing a novel building energy supply system that integrates industrial waste heat and biomass energy to tackle the issues of low energy efficiency and high carbon emissions in tra...

“WIC helps, but there are challenges”: A thematic analysis of Latina immigrant mothers’ experiences with Missouri’s WIC program

This qualitative study explored Latina immigrant mothers’ experiences with the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) in Missouri. Twelve focus groups were conducted via Zoom (2021–2023) with 32 Latina immigrant mothers residing in Missouri....

Reproducibility, Replicability, and Research Quality in Homogeneous Catalysis

Abstract Researchers from all sectors of homogeneous catalysis convened in response to concerns regarding reproducibility in science to analyze the issue and provide recommendations. In addition to an in-person workshop, the group engaged the broader homogeneous catalysis communi...

Victimization and Mental Health Among Youth With and Without Disabilities: Results From a State-Wide Sample of Youth in the Juvenile Justice System

Youth with disabilities experience disproportionately high levels of victimization, yet little is known about whether victimization and resilience factors shape mental health outcomes differently for justice‑involved youth with and without disabilities. Drawing on ten years of ca...

Multiparametric optimization based decision making approach in energy systems planning under uncertainty

Energy infrastructure planning confronts a fundamental temporal asymmetry in which capacity decisions must be committed before uncertainty materializes and yet must remain robust across all future operational scenarios. Traditional approaches either adopt worst-case hedging or ig...

Stable evaluation of derivatives for barycentric and continued fraction representations of rational functions

Abstract Effective algorithms for approximation by rational functions exist for both barycentric and Thiele continued fraction (TCF) representations. We present the first numerically stable methods for derivative evaluation in the barycentric representation, including an O ( n )...

Altered causality perception in Parkinson’s disease

Causality perception allows observers to infer causal relationships from dynamic visual events. A classic example is Michotte’s launching effect, in which one moving object contacts a stationary object and stops as the second object begins to move, creating the perceptual impress...

Bridging the Policy-to-Practice Gap: Professionals’ Knowledge, Perspectives, and Experiences Following Passage of Legislation Concerning Disabled Parents in Idaho

Parents with disabilities and their children experience disparities within the child welfare system. In response, states are increasingly enacting legislation to protect the rights of these families. As the first state to pass comprehensive legislation concerning parents with dis...

The AWAKEN wind farm benchmark – Part 2: Modeling results

Abstract. Accurately modeling wind farm performance in complex atmospheric flows remains a challenge. This paper presents the modeling results of the American WAKE experimeNt (AWAKEN) wind farm benchmark, a collaborative effort involving 16 research groups from academia and indus...

Methods for analyzing acetylcholine-induced vasodilation in human skin

Intradermal microdialysis, combined with laser‑Doppler flowmetry and local heating, is commonly used to investigate mechanisms of endothelial function and dysfunction in the cutaneous microcirculation. Local perfusion of acetylcholine (ACh), with and without N G ‑nitro‑L‑arginine...

Metabolic Supercharging: Active Learning Strategies for Increasing Student Engagement With Metabolism

Metabolism is a central component of biochemistry and biochemistry education. Metabolism, however, presents a challenge to students. Many students struggle to progress beyond rote memorization of enzymes, metabolites, and reaction steps and into understanding the underlying chemi...

Incentives and motivational crowding to address chronic wasting disease: An experiment with Alberta hunters

Abstract Behavioral interventions, for example, through the use of incentives and information, are widely used by policymakers to induce welfare‐improving behavior. When these interventions are used in specific contexts such as environmental conservation, individual knowledge, ex...

Selecting the number of components in PCA via random signflips

Principal component analysis (PCA) is a foundational tool in modern data analysis, and a crucial step in PCA is selecting the number of components to keep. However, classical selection methods (e.g., scree plots, parallel analysis, etc.) lack statistical guarantees in the increas...

Storage timescales and the crystal growth history recorded in the layered reservoir of the Unit 3 Kulanaokuaiki Tephra Member of the Uēkahuna Ash from Kīlauea volcano

Abstract The Kulanaokuaiki Tephra Unit 3 (900 C.E.) was a subplinian basaltic scoria eruption, the largest known to have occurred at Kīlauea’s summit. The initiation mechanism and cause(s) of this highly hazardous eruption remain poorly understood, particularly as this style of a...

Impaired effort perception, not reward sensitivity, impacts the effort-reward trade-off in Parkinson’s disease

Deciding whether and how to act depends on a trade-off between the effort required to execute a given action and the potential reward for completing it. Impairments in this effort-reward trade-off have been proposed to underlie reduced movement vigor, or bradykinesia, in Parkinso...

Rapid general electromagnetic analysis of metallic surfaces via conformal energy minimization

We recently found that the electromagnetic scattering problem can be solved efficiently using an approach that expresses the fields in terms of a set of orthonormal basis functions. In this paper, we apply computational conformal geometry with the conformal energy minimization (C...