Virginia Tech

A Scandian pressure-temperature path for the northern Moine Nappe, Scotland

The Northern Highlands Terrane in northwestern Scotland preserves a polyphase metamorphic history dominated by Scandian (435-415 Ma) tectonism. Phase equilibria modeling, major and trace element compositions in metamorphic phases, and textural observations are used to construct a...

“You have no grit:” A qualitative exploration of barriers to eating disorder care in the rural United States

This qualitative study explored the barriers to eating disorder (ED) treatment among adults with EDs in a rural state. Study participants were adults with a confirmed ED who lived in a rural region of one rural state in the United States. Braun & Clarke’s (2006) thematic analysis...

Utility of 18F-FDG PET-CT Scan in Patients With Staphylococcus aureus Bacteremia

Background: Staphylococcus aureus bacteremia is a common yet serious infection with high morbidity and mortality. This study evaluated 18F-FDG PET-CT scan in regards to improving 30- and 90-day mortality in patients with S. aureus bacteremia. Methods: We retrospectively identifie...

Contagious caprine pleuropneumonia: a review and gap analysis of its impact, epidemiology, pathogenesis, and control

Contagious caprine pleuropneumonia (CCPP), caused by Mycoplasma capricolum subsp. capripneumoniae ( Mccp ), remains one of the most important small ruminant diseases and a major transboundary disease. Although primarily affecting goats, infections have also been reported in sheep...

A Case Study of Pedagogy and Practice of Successful Jazz Educators

School jazz ensemble pedagogy has long been overlooked in research, evidenced by few studies on ensemble instruction and inconsistent preservice preparation. This study examined the pedagogical values and instructional strategies of jazz educators whose ensembles achieved nationa...

Construction and characterisation of the DarkSide-20k veto silicon photo-multiplier tiles

Abstract Silicon photo-multipliers (SiPMs) are state-of-the-art sensors capable of detecting a single photoelectron under cryogenic conditions, with potentially lower radioactivity than widely used photomultiplier tubes. The DarkSide-20k experiment, designed to perform direct dar...

Resonance-enhanced integrated acousto-optic beam steering

Optical beam steering is a key technology for free-space optical communication, sensing, and imaging. Mechanical beam steering systems suffer from limited scanning speed and bulky form factors, while existing solid-state solutions rely on pixelated synthetic aperture that require...

Risk assessment of driver emotion using a data-driven Bayesian Network: Insights from a naturalistic driving study

Introduction: Driving in a state of high emotions, particularly anger, can impair driving abilities and increase the risk of crashes. Understanding the influencing factors on emotions and how emotions impact safety–critical events (SCEs) is crucial for enhancing traffic safety. T...

Updated flexible global parametrization of generalized parton distributions from elastic and deep inelastic inclusive scattering data

Abstract An updated flexible parametrization of the generalized parton distributions in the quark, antiquark and gluon sectors is presented using constraints from high precision electron nucleon deep inelastic scattering data, from the u and d flavor separated nucleon electromagn...

Civil: causal and intuitive visual imitation learning

Abstract Today’s robots attempt to learn new tasks by imitating human examples. These robots watch the human complete the task, and then try to match the actions taken by the human expert. However, this standard approach to visual imitation learning is fundamentally limited: the...

Agriscience teachers’ perceptions of integrating science within plant science curricula after an immersive professional development program

Abstract Secondary education focused on building students' science, technology, engineering, and mathematics (STEM) literacy is crucial for maintaining the United States' innovation workforce. However, few studies have examined how immersive, content‐specific professional develop...

Perceptions of CRISPR and the role of risk information seeking and processing: An analysis of North Carolina consumers

Genetic engineering technologies, like CRISPR, have ignited public acceptance issues due to perceived risks and previous rejection of genetically modified organisms. Thus, there is a need for evidence-based strategies to inform effective science communication and outreach. The cu...

Using ICESat-2 ATL08 heights and Landsat time series to assess the age-height relationship of southern yellow pines in the US

It is critical to understand the age-height relationship in actively managed pine plantations to evaluate forest productivity and inform sustainable forest management practices. This study utilized the spaceborne lidar data from ICESat-2 ATL08 and Landsat-derived disturbance maps...

Measuring Active Layer Thickness and Permafrost Shear-Wave Velocity as a Potential Proxy for Thaw Stability Using Surface-Wave Methods

Abstract Two of the most important design considerations of civil infrastructure in cold regions are active layer thickness and permafrost thaw stability. This study examines whether noninvasive surface-wave methods, specifically the multichannel analysis of surface waves, can ef...

Impacts of ivermectin mass drug administration for malaria control on smallholder pig health and productivity in Mozambique

Abstract As part of a larger clinical trial testing ivermectin mass drug administration (iMDA) in humans and pigs for malaria vector control in Mozambique, this study evaluates ivermectin’s effects on gastrointestinal nematode burden, daily weight gain and economic outcomes in tr...

Comparative Analysis of Intermuscular Bones in Five Characiform Species and Their Early Development in Tambaqui (Colossoma macropomum)

Intermuscular bones (IBs) are spicule-like, ossified structures located in the myosepta of muscles on either side of the vertebrae that are unique to several orders of teleost fishes, including Order Characiformes, for which research on the characteristics of IBs is limited. We i...

New Constraints on the Onset of Antarctic Glaciation From Combined Radiogenic Hafnium and Neodymium Isotopes

Abstract The drawdown of atmospheric CO 2 likely triggered Antarctic glaciation during the Eocene‐Oligocene Transition (34 Ma). Accurately constraining this shift from “greenhouse” to an “icehouse” climate is essential for understanding global carbon cycle dynamics. However, conv...

Prophage-encoding engineered bacteria enable prophylactic lytic phage therapy for enteric infection in mice

Phage therapy is a promising antibacterial approach but it has limited efficacy against enteric bacterial infections, such as Salmonella enterica Typhimurium (STm). Here we hypothesized that establishing high concentrations of a pathogen-targeting phage in the gut before infectio...

\({\mathcal{H}}_{2}\)-Optimal Model Reduction of Linear Quadratic-Output Systems by Multivariate Rational Interpolation

Abstract. This paper addresses the [Formula: see text]-optimal approximation of linear dynamical systems with quadratic-output functions, also known as linear quadratic-output systems. Our major contributions are threefold. First, we derive interpolatory first-order optimality co...

Advancing Near-Term Water Quality Forecasting with Explainable Machine Learning and Probabilistic Uncertainty Quantification

Abstract Phytoplankton blooms threaten drinking-water security, yet translating high-frequency monitoring data into timely, reliable, and interpretable forecasts remains challenging. Machine learning (ML) models can improve predictive accuracy but typically require intensive tuni...