8,792 results match your criteria: "Virginia Polytechnic Institute and State University[Affiliation]"
Sci Rep
July 2025
Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
Studies of health literacy often employ knowledge measures and typically focus on the correct answers as reflections of the level of (accurate) knowledge and literacy. The wrong answers are treated as failures but usually without further consideration. This paper argues for the importance of distinguishing two forms of knowledge failure-being uninformed(uncertain about information) and being misinformed(believing objectively wrong information)-because of their differing effects on communication responses and associated judgments and decisions.
View Article and Find Full Text PDFNPJ Digit Med
July 2025
Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA.
Large scale data repositories like the All of Us Research Program are spurring new understanding of health and disease. All of Us aims to create a database of all Americans, addressing patterns of understudy of some groups in biomedical research. We study the representativeness (similarity to the U.
View Article and Find Full Text PDFPLoS One
July 2025
Department of Computer Science, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America.
The three-dimensional (3D) organization of interphase chromatin in eukaryotes is complex; details of the corresponding genome structures vary stochastically from cell to cell. Here, we propose a metric to quantify the cell-to-cell heterogeneity of the 3D chromatin conformations in ensembles of single cells: Conformational Heterogeneity (C.H.
View Article and Find Full Text PDFFront Physiol
June 2025
School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States.
The objective of this study was to determine the effects of an acute heat challenge on day 4 post-hatch on the transcriptome of several brain nuclei associated with thermal regulation, stress, and appetite. These included the paraventricular nucleus (PVN) of the hypothalamus, the pre-optic anterior/hypothalamic area (POAH), and the nucleus of the hippocampal commissure (nCPa), in broilers that were subjected to either control incubation conditions or embryonic heat conditioning (EHC). Nuclei were collected at three timepoints relative to the start of heat challenge (0, 2, and 12 h).
View Article and Find Full Text PDFAccid Anal Prev
September 2025
Department of Statistics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA; Virginia Tech Transportation Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. Electronic address:
Models capable of learning representations that are salient in safety-critical events (SCEs; including crashes and near-crashes) are crucial for road safety. This study proposes a novel deep learning model, the supervised contrastive variational autoencoder (scVAE), that incorporates supervised contrastive learning methods into the variational autoencoder (VAE) framework. By leveraging two distinct encoders, the scVAE encourages the salient latent variables to be discriminative, capturing the unique representations of SCEs while being regulated by the response variable to focus on the most relevant representations for accurate clustering.
View Article and Find Full Text PDFReprod Domest Anim
July 2025
Department of Large Animal Clinical Sciences, University of Florida, Gainesville, Florida, USA.
The following case report describes two pregnancies contralateral to the side of the corpus luteum (CL) that were carried to term after artificial insemination (AI) in Holstein heifers. Pregnancy diagnosis was performed by ultrasonography at 32, 46 and 74 days after timed AI. Both heifers had the pregnancy located within the right uterine horn and only one CL on the left ovary.
View Article and Find Full Text PDFTransl Anim Sci
June 2025
School of Plant and Environmental Sciences, College of Agriculture and Life Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
Providing calves with access to high-quality forage through creep grazing prior to weaning may help improve calf productivity. In this study of fall-calving herds, the productivity of a rotationally stocked forage system with 10% of the pasture area rotated between winter forages for creep grazing and summer forages (CRP) was compared to the productivity of rotationally (ROT) and continuously (CON) stocked, perennial forage systems. Calves in CRP were provided access to the creep forage 6 to 26 d before weaning and through a 2-wk weaning process.
View Article and Find Full Text PDFTransl Anim Sci
June 2025
Department of Large Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
The study aimed to evaluate the effects of Saccharomyces cerevisiae fermentation product (SCFP) supplementation during the breeding season on reproductive performance of beef cows grazing fescue-dominated pastures (Festuca arundinacea). A total of 883 multiparous suckled beef cows across eight locations were stratified by age and days postpartum (DPP) and randomly assigned to one of two treatments: 1) CON-mineral supplementation at 90 g/hd/d (n = 439 cows; 13 experimental units), or 2) SCFP-mineral with 9 g SCFP (NaturSafe, Diamond V, Cedar Rapids, IA; n = 444 cows; 13 experimental units). Supplementation began 21 d pre-breeding and continued through the breeding season (approx.
View Article and Find Full Text PDFLab Chip
July 2025
Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24060, USA.
Acoustic tweezers, with the capability to manipulate tiny objects without physical contact, hold substantial potential for biomedical and biological research. However, current acoustic tweezers platforms face challenges in precise, selective, and multi-degree-of-freedom (multi-DoF) manipulation of objects in Petri dishes, making it difficult to integrate them into typical laboratory workflows. This paper presents an acoustic vortex tweezers platform that enables contactless, precise, multi-DoF, and multifunctional manipulation of micro-to-millimeter-scale objects within a Petri dish.
View Article and Find Full Text PDFDev Comp Immunol
August 2025
Edificio de Investigación I, ENES, unidad Morelia, UNAM, Antigua Carretera a Pátzcuaro No.8701, Col. Ex-Hacienda San José de la Huerta Código, Postal 58190, Morelia, Michoacán, Mexico. Electronic address:
Immune priming enhances protection in invertebrates upon secondary exposure to specific pathogens. Despite significant advances in understanding this phenomenon, it remains unclear whether the elevated defense observed through priming arises from identical or distinct effector-mediated responses within the same species. To address this, we used the model species Galleria mellonella from two geographically distinct origins (Siberia and Mexico), both of which exhibited immune priming with enhanced survival.
View Article and Find Full Text PDFGenome Biol Evol
July 2025
Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
Chromosomal inversions play a crucial role in evolution and have been found to regulate epidemiologically significant traits in malaria mosquitoes. However, they have not been characterized in Aedes aegypti, the primary vector of arboviruses, due to the poor structure of its polytene chromosomes. The Hi-C proximity ligation approach was used to identify chromosomal inversions in 25 strains of A.
View Article and Find Full Text PDFNeuroscientist
June 2025
Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA.
The subgenual (sACC) and pregenual (pACC) anterior cingulate and anterior midcingulate (aMCC) cortices are structurally and functionally distinct subregions of the cingulate cortex with critical roles in pain processing. These regions may be promising therapeutic targets using non-invasive neuromodulation techniques, including transcranial magnetic stimulation (TMS), transcranial electrical stimulation (TES), and low-intensity focused ultrasound (LIFU). In this review, we synthesize emerging evidence on the function and connectivity of these subregions in both acute and chronic pain, highlighting their differential roles in the sensory, affective, and autonomic contributions to pain processing.
View Article and Find Full Text PDFViruses
May 2025
Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, 80539 Munich, Germany.
Emerging RNA viruses pose a critical threat to aquatic animals, leading to significant ecological and economic consequences. Their high mutation rates and genetic adaptability drive rapid evolution, cross-species transmission, and expanding host ranges, complicating disease management. In aquaculture, RNA viruses are responsible for major outbreaks in fish, while DNA viruses predominate in crustaceans.
View Article and Find Full Text PDFBioprocess Biosyst Eng
September 2025
Novonesis Biological, Inc., 5400 Corporate Circle, Salem, VA, 24153, USA.
This paper demonstrates an accurate and efficient methodology for fermentation contamination detection and reduction using two machine learning (ML) methods, including one-class support vector machine and autoencoders. We also optimize as many hyperparameters as possible prior to the training of the ML models to improve the model accuracy and efficiency, and choose a Python platform called Optuna, to enable the parallel execution of hyperparameter optimization (HPO). We recommend using Bayesian optimization with hyperband algorithm to carry out HPO.
View Article and Find Full Text PDFBiophys J
August 2025
Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia; Center for Soft Matter and Biological Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia; Department of Mechanical Engineering, Virginia Polytechnic Institute and State U
Mesenchymal cells navigate the extracellular matrix (ECM) in vivo by processing both its mechanical properties and confinement geometry. Here, we develop a multiscale whole-cell theory to investigate cell spreading and migration in two-dimensional viscoelastic channel confinements of varying width and curvature. Our simulations show that, in straight channels, the cell migration speed depends monotonically on the substrate elastic stiffness, which is otherwise biphasic on an unconfined substrate.
View Article and Find Full Text PDFAnimals (Basel)
June 2025
Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
Thermal manipulation (TM) during embryogenesis is a promising non-pharmacological strategy to enhance physiological resilience in broiler chickens. This study evaluated the impact of thermal conditioning of fertile eggs on growth performance, inflammatory responses, and molecular stress markers following a post-hatch lipopolysaccharide (LPS) challenge. Fertilized eggs (average weight 62 ± 3 g) were obtained from 35-week-old Indian River broiler breeder hens.
View Article and Find Full Text PDFAnimals (Basel)
June 2025
Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
Rising global temperatures challenge poultry production by disrupting the cecal microbiota, which is essential for chicken health. Thermal manipulation (TM) during embryogenesis is a potential strategy to enhance thermotolerance in broilers. This study examined TM's effects on the cecal microbiome, body weight (BW), and body temperature (BT) under chronic heat stress (CHS).
View Article and Find Full Text PDFNeurobiol Learn Mem
July 2025
School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA. Electronic address:
Age-related memory loss affects approximately 40% of the world's population after the age of 65 and is a significant risk factor for the development of dementia and Alzheimer's Disease (AD). Numerous studies have reported that late in life there decreases in the function of the ubiquitin-proteasome system, the main regulator of protein degradation in cells that is also critically involved in memory formation. However, ubiquitin can mark proteins for fates other than destruction by the proteasome.
View Article and Find Full Text PDFDifficulty concentrating is an understudied cognitive phenomenon, despite its status as a diagnostic criterion for generalized anxiety disorder and contributor to clinically significant distress and impairment. Worry may constitute a cognitive mechanism by which anxiety leads to difficulty concentrating. The present study examined concurrent and prospective associations between self-reported anxiety, worry, and subjective difficulty concentrating across three timepoints (T1 April/May, T2 July/August, T3 October/November 2020) in 198 adults (M age = 37.
View Article and Find Full Text PDFPhys Rev Lett
May 2025
The Pennsylvania State University, Department of Chemistry, University Park, Pennsylvania 16802, USA.
High-entropy materials shift the traditional materials discovery paradigm to one that leverages disorder, enabling access to unique chemistries unreachable through enthalpy alone. We present a self-consistent approach integrating computation and experiment to understand and explore single-phase rocksalt high-entropy oxides. By leveraging a machine-learning interatomic potential, we rapidly and accurately map high-entropy composition space using our two descriptors: bond length distribution and mixing enthalpy.
View Article and Find Full Text PDFWe present the electronic, magnetic, and thermoelectric properties of the CaCuCrReO quadruple double perovskite oxide (QDPO) using calculations. Strong antiferromagnetic interactions between Cu↑Cr↑Re↓ result in a ferrimagnetic (FiM) ground state. A half-metallic (HM) state is evident with a finite energy gap ( ) of 1.
View Article and Find Full Text PDFPoult Sci
September 2025
Department of Entomology, Fralin Life Science Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061; Center for Emerging, Zoonotic, and Arthropod-borne Pathogens, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061. Electronic address: jauguste@
Cache Valley virus (CVV) belongs to the genus Orthobunyavirus, and is known to cause severe disease in ruminants, including spontaneous abortions and congenital defects. Previous evidence suggests there is the potential of CVV to infect poultry species due to its wide geographic range, reports of seropositivity in birds for Cholul or Maguari virus (closely related viruses), and isolations of CVV from highly ornithophilic mosquito vectors. To determine CVV's potential as a disease-causing agent in poultry species, we used two strains from the two recognized genetic lineages of CVV for both our in-vivo and in-vitro studies.
View Article and Find Full Text PDFChem Commun (Camb)
July 2025
Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
Real-space Kohn-Sham density functional theory (real-space KS-DFT) enables large-scale electronic structure simulations that is particularly well-suited for the modern high-performance computing (HPC) architectures. This feature article reviews its theoretical foundations, highlights the algorithmic advances and recent developments, and showcases applications in complex nano systems. We aim to provide a perspective on the trajectory of real-space KS-DFT as an emerging tool for computational chemistry and materials science in the exascale era.
View Article and Find Full Text PDFNeuroscience
August 2025
School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA. Electronic address:
Cognitive decline with aging is a complex process involving multiple brain regions and molecular mechanisms. While the role of the canonical protein degradation function of the ubiquitin-proteasome system (UPS) has been well studied in the context of aging and age-associated memory loss, the non-proteolytic functions of ubiquitin activity remain poorly understood. Here, we investigated the role of lysine-63 (K63) polyubiquitination, the most abundant form of proteasome-independent ubiquitination, in aged rats, focusing on the hippocampus and amygdala, two brain regions reported to have cellular and molecular alterations with age that are associated with age-related memory loss.
View Article and Find Full Text PDFHealth Aff Sch
June 2025
School of Public and International Affairs, Virginia Tech, Blacksburg, VA 24061, United States.
In the spring and summer of 2022, an infant formula shortage in the United States received extensive media coverage, widespread social media engagement, and visible political attention. The purpose of this study was to explore changes to federal infant feeding policies in relation to the 2022 infant formula shortage to determine whether the shortage provoked policy change, and if so, the nature of those policy changes. A mapping of federal laws, regulations, and presidential documents passed or substantively amended between 2014 and 2023 was conducted to explore changes in US infant feeding policies prior to and following the shortage.
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