26,055 results match your criteria: "University of Waterloo; and Centre for Eye and Vision Research (CEVR) (W.N.)[Affiliation]"
Nutr J
January 2025
École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, 2440, boulevard Hochelaga, Québec, Québec, G1V 0A6, Canada.
Background: A better understanding of correlates of sugary drink consumption is essential to inform public health interventions. This study examined differences in perceived healthiness of sugary drinks and related social norms between countries, over time, and sociodemographic groups and associations with sugary drink intake.
Methods: This study used annual cross-sectional data from the International Food Policy Study from 2018 to 2021 in Australia, Canada, the United Kingdom, the United States, and Mexico.
Zoonoses are infectious diseases transmitted from animals to humans. Bats have been suggested to harbour more zoonotic viruses than any other mammalian order. Infections in bats are largely asymptomatic, indicating limited tissue-damaging inflammation and immunopathology.
View Article and Find Full Text PDFBMJ Open
January 2025
Wilfrid Laurier University, Waterloo, Ontario, Canada.
Objectives: Creating age-friendly cities (AFCs) is essential for supporting older adults' well-being. The WHO's 2007 guide outlines key features of AFCs, including social inclusion. Despite increasing numbers of AFC programmes, diverse experiences of ageing are often overlooked.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Chemical Engineering, Institute of Polymer Research, Waterloo Institute of Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada. Electronic address:
This study investigated the production and application of lignocellulosic wood vinegar and tar as organic pesticides to combat bacterial canker disease in trees, caused by pathogenic bacteria. Lignocellulosic wood vinegar and tar were produced from various lignocellulosic wastes through pyrolysis at different temperatures, with sawdust at 300 °C, 350 °C, and 400 °C yielding the highest quantity and quality of vinegar. Chemical analysis revealed that the lignocellulosic vinegar contained significant concentrations of acetic acid, methanol, and phenolic compounds, all known for their strong antimicrobial properties.
View Article and Find Full Text PDFClin Biomech (Bristol)
January 2025
Department of Kinesiology and Physical Education, Wilfrid Laurier University, Waterloo, Ontario, Canada; Department of Health Sciences, Wilfrid Laurier University, Waterloo, Ontario, Canada. Electronic address:
Background: Fusion changes the biomechanics of the spine leading to the potential development of adjacent segment disease. Despite many studies on adjacent segment disease, it is largely unknown how spinal fixation affects the mechanical properties of the adjacent disc. The purpose of this study was to assess whether axial compression causes mechanical disruption to the annulus when the caudal spinal level is immobilized or injured.
View Article and Find Full Text PDFJ Am Coll Health
January 2025
Department of Psychology, Wilfrid Laurier University, Waterloo, Ontario, Canada.
Introduction: Undergraduate students face a multitude of unique stressors which can affect their mental health and well-being. Finding ways to promote positive mental health among students is critical. Engagement in prosocial behavior is one way to buffer against such negative mental health outcomes.
View Article and Find Full Text PDFJMIR Med Inform
January 2025
Department of Systems Design Engineering, Faculty of Engineering, University of Waterloo, Waterloo, ON, Canada.
Background: While expert optometrists tend to rely on a deep understanding of the disease and intuitive pattern recognition, those with less experience may depend more on extensive data, comparisons, and external guidance. Understanding these variations is important for developing artificial intelligence (AI) systems that can effectively support optometrists with varying degrees of experience and minimize decision inconsistencies.
Objective: The main objective of this study is to identify and analyze the variations in diagnostic decision-making approaches between novice and expert optometrists.
J Cutan Med Surg
January 2025
Division of Dermatology, Department of Medicine, University of Toronto, Toronto, ON, Canada.
Biometrika
October 2024
Department of Statistics, North Carolina State University, 2311 Stinson Drive, Raleigh, North Carolina 27695, USA.
Functional principal component analysis has been shown to be invaluable for revealing variation modes of longitudinal outcomes, which serve as important building blocks for forecasting and model building. Decades of research have advanced methods for functional principal component analysis, often assuming independence between the observation times and longitudinal outcomes. Yet such assumptions are fragile in real-world settings where observation times may be driven by outcome-related processes.
View Article and Find Full Text PDFJ Fish Biol
January 2025
Laboratory of Ecophysiology and Molecular Evolution, National Institute for Amazonian Research, Manaus, Brazil.
Optical characterization of dissolved organic carbon (DOC) freshly collected from the circumneutral "white water" of the Rio Solimoes revealed that it had lower aromaticity, lower molecular weight, and a greater autochthonous content than DOC from the acidic "black water" of the Rio Negro. The tambaqui (Colossoma macropomum), a characid member of the Serrasalmidae, is a model neotropical fish that migrates annually between the two rivers. We analysed ionoregulatory responses of the tambaqui over 24 h in ion-poor water at pH 7.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Biomedical Physiology and Kinesiology, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
Busy walking paths, like in a park, city centre, or shopping mall, frequently necessitate collision avoidance behaviour. Lab-based research has shown how different situation- and person-specific factors, typically studied independently, affect avoidance behaviour. What happens in the real world is unclear.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Applied Mathematics, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
In the field of medical imaging, particularly MRI-based brain tumor classification, we propose an advanced convolutional neural network (CNN) leveraging the DenseNet-121 architecture, enhanced with dilated convolutional layers and Squeeze-and-Excitation (SE) networks' attention mechanisms. This novel approach aims to improve upon state-of-the-art methods of tumor identification. Our model, trained and evaluated on a comprehensive Kaggle brain tumor dataset, demonstrated superior performance over established convolution-based and transformer-based models: ResNet-101, VGG-19, original DenseNet-121, MobileNet-V2, ViT-L/16, and Swin-B across key metrics: F1-score, accuracy, precision, and recall.
View Article and Find Full Text PDFJ Sport Exerc Psychol
January 2025
School of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada.
Despite trust being associated with a range of favorable outcomes across high-performing team contexts (e.g., enhanced satisfaction, performance), efforts to investigate the meaning of trust in sport remain limited.
View Article and Find Full Text PDFAm J Emerg Med
January 2025
Division of Critical Care Medicine, Western University, London, ON N6A 5C1, Canada.
Rationale: Lung ultrasound, the most precise diagnostic tool for pleural effusions, is underutilized due to healthcare providers' limited proficiency. To address this, deep learning models can be trained to recognize pleural effusions. However, current models lack the ability to diagnose effusions in diverse clinical contexts, which presents significant challenges.
View Article and Find Full Text PDFTheory Comput Syst
January 2025
School of Computer Science, University of Waterloo, Waterloo, ON N2L 3G1 Canada.
We show how to obtain, via a unified framework provided by logic and automata theory, many classical results of Brillhart and Morton on Rudin-Shapiro sums. The techniques also facilitate easy proofs for new results.
View Article and Find Full Text PDFJ Chem Inf Model
January 2025
Department of Chemistry, Faculty of Science, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
Tau is a microtubule (MT)-associated protein that binds to and stabilizes the MTs of neurons. Due to its intrinsically disordered nature, it undergoes several post-translational modifications (PTMs) that are intricately linked to both the physiological and pathophysiological roles of Tau. Prior research has shown phosphorylation and O-GlcNAcylation to have contrasting effects on Tau aggregation; however, the precise molecular mechanisms and potential synergistic effects of these modifications remain elusive.
View Article and Find Full Text PDFArch Gerontol Geriatr
January 2025
School of Public Health Sciences, University of Waterloo, Waterloo, Ontario, Canada. Electronic address:
Purpose: Although several studies have reported positive associations between functional social support (FSS) and memory, few have explored how other social variables, such as marital status, may affect the magnitude and direction of this association. We examined whether marital status modifies the association between FSS and memory in a sample of community-dwelling, middle-aged and older adults.
Methods: Data at three timepoints, spanning six years, were analyzed from the Tracking Cohort of the Canadian Longitudinal Study on Aging (n = 10,318).
PLoS Pathog
January 2025
Department of Microbiology, Faculty of Science, University of Manitoba, Winnipeg, Manitoba, Canada.
RNA viruses have evolved numerous strategies to overcome host resistance and immunity, including the use of multifunctional proteases that not only cleave viral polyproteins during virus replication but also deubiquitinate cellular proteins to suppress ubiquitin (Ub)-mediated antiviral mechanisms. Here, we report an approach to attenuate the infection of Arabidopsis thaliana by Turnip Yellow Mosaic Virus (TYMV) by suppressing the polyprotein cleavage and deubiquitination activities of the TYMV protease (PRO). Performing selections using a library of phage-displayed Ub variants (UbVs) for binding to recombinant PRO yielded several UbVs that bound the viral protease with nanomolar affinities and blocked its function.
View Article and Find Full Text PDFAlzheimers Dement
January 2025
Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada.
Introduction: We aimed to compare gait between individuals with Alzheimer's disease (AD), dementia with Lewy bodies (DLB), and cognitively unimpaired (CU) individuals and to evaluate the association between gait and regional amyloid beta (Aβ) burden in AD and DLB.
Methods: We included 420 participants (70 AD, 70 DLB, 280 CU) in the Mayo Clinic Study of Aging (MCSA). Gait was assessed using a pressure-sensor walkway.
Clin Cosmet Investig Dermatol
January 2025
Western University, London, ON, Canada.
Acne vulgaris is a globally prevalent dermatological condition associated with substantial physical and psychological burden. Although acne typically presents during adolescence, it is a chronic condition that also affects many adults. Despite the spectrum of treatments available for acne, limitations in tolerability and safety concerns can present challenges for the use of conventional medications in clinical practice.
View Article and Find Full Text PDFTob Prev Cessat
January 2025
Institute for Mental Health and Policy Research, Centre for Addiction and Mental Health, Toronto, Canada.
Introduction: Rural regions generally report higher smoking rates than urban centers, which increases the risk of tobacco related harms and consequences, and makes promoting smoking cessation in these areas a priority. Mass distribution of nicotine replacement therapy (NRT) by postal mail has been found to increase the odds of successful cessation attempts. Understanding factors that contribute to the use of NRT could help maximize this intervention's effectiveness.
View Article and Find Full Text PDFNat Astron
November 2024
Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Mumbai, India.
The precise origins of fast radio bursts (FRBs) remain unknown. Multiwavelength observations of nearby FRB sources can provide important insights into the enigmatic FRB phenomenon. Here we present results from a sensitive, broadband X-ray and radio observational campaign of FRB 20200120E, the closest known extragalactic repeating FRB source (located 3.
View Article and Find Full Text PDFEPJ Quantum Technol
January 2025
Institute for Quantum Computing and Department of Physics & Astronomy, University of Waterloo, 200 University Ave W, Waterloo, N2L 3G1 Ontario Canada.
Satellite-based quantum communication channels are important for ultra-long distances. Given the short duration of a satellite pass, it can be challenging to efficiently connect multiple users of a city-wide network while the satellite is passing over that area. We propose a network with dual-functionality: during a brief satellite pass, the ground network is configured as a multipoint-to-point topology where all ground nodes establish entanglement with a satellite receiver.
View Article and Find Full Text PDFSmall
January 2025
Institute for Quantum Computing and Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, N2L3G1, Canada.
Electronic flat bands can lead to rich many-body quantum phases by quenching the electron's kinetic energy and enhancing many-body correlation. The reduced bandwidth can be realized by either destructive quantum interference in frustrated lattices, or by generating heavy band folding with avoided band crossing in Moiré superlattices. Here a general approach is proposed to introduce flat bands into widely studied transition metal dichalcogenide (TMD) materials by dilute intercalation.
View Article and Find Full Text PDFJ Am Acad Dermatol
January 2025
Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Probity Medical Research, Waterloo, Ontario, Canada; Division of Dermatology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Division of Dermatology, Department of Medicine, Women's College Hospital, Toronto, Ontario, Canada. Electronic address: