University of Waterloo

Ventricular-arterial coupling during exercise and tilt assessed using a pulse wave velocity-to-global longitudinal strain ratio

Ventricular-arterial coupling (VAC) is commonly assessed using the echocardiography-derived ratio of arterial elastance to end-systolic elastance (E a /E es ), a convenient but global construct that collapses ventricular and arterial properties into a single lumped parameter. A p...

Japanese translation of lindop parkinson’s disease mobility assessment (LPA): validity and reliability study

Abstract Introduction The Lindop Parkinson’s Disease Mobility Assessment (LPA) is a Parkinson’s disease (PD)-specific clinical scale. The LPA was designed to assess core functional mobility in rehabilitation, including gait and bed mobility. This study aimed to develop a Japanese...

The Luminosity Function of Ultrafaint Trans-Neptunian Objects Detected by JWST

Abstract We present a definitive discovery of 27 trans-Neptunian objects (TNOs) using the Near-Infrared Camera aboard the James Webb Space Telescope (JWST). By employing a shift-and-stack technique and a machine learning network geared specifically to identifying false-positive d...

Mapping the nuclear environments of extreme coronal line emitting galaxies

Abstract Extreme coronal line emitters (ECLEs) are a rare class of galactic nuclei exhibiting unusually strong high-ionisation forbidden emission lines, and several ECLEs have been linked to tidal disruption events (TDEs). In this work, we compile and analyse optical spectra of 3...

Doubly Robust Methods for Recurrent Event Outcomes: Causal Effects of Blood Pressure Medications on Acute Kidney Injuries

Abstract Evaluating the average causal effects of treatment strategies on recurrent event outcomes, such as heart attacks or renal failure, is important in clinical and medical research. However, the analysis becomes increasingly complex as multiple interacting factors are consid...

Life is a Pressure Cooker: How and Why Stress Directs Consumers to Act Unethically

Abstract Unethical consumer behavior, such as deceptive product returns, digital piracy, shoplifting, and falsifying online reviews, is a growing concern with significant economic and ethical implications. However, its psychological antecedents remain underexplored. This research...

Preconditioning a Hybridizable Discontinuous Galerkin Method for Navier–Stokes at High Reynolds Number

Abstract. We introduce a preconditioner for a hybridizable discontinuous Galerkin discretization of the linearized Navier–Stokes equations at high Reynolds number. The preconditioner is based on an augmented Lagrangian (AL) approach of the full discretization. Unlike standard gra...

Diverse microbial metal resistance and novel metal cycling organisms in copper/nickel mine tailings

Abstract Mine tailings contribute to environmental heavy metal contamination through the formation of acid mine drainage (AMD). Microbially-mediated processes such as iron and sulfur redox cycling influence metal mobility. Here, we applied an integrated metagenomic and metaproteo...

Laser beam welding properties and microstructural characterization of Kanthal APMT ferritic alloys in the application of accident tolerant fuel cladding

Ferritic FeCrAl steel is one of the most promising candidate materials for accident tolerant fuel cladding due to its excellent high temperature mechanical properties, low thermal expansion coefficient, and most importantly, very low void swelling rate under neutron irradiations....

Validity and Reliability of the Single-Item Flow Scale: An Initial Investigation

Flow is an experiential phenomenon that occurs when one is deeply engaged with an activity. The current set of studies aimed to create and test a single-item measure of flow for future use in studies where existing multi-item measures are not viable, such as exploratory research....

From frameworks to futures: health adaptation pathways across the Shared Socioeconomic Pathways

Abstract Effectively managing the rising health risks of climate change requires consideration of plausible adaptation pathways under a range of scenarios of changes in greenhouse gas emissions and socioeconomic development to systematically explore the solution space for climate...

Beyond the Fracture Clinic: 3 Things a Surgeon Can Do to Help Older Patients Stay Out of the Hospital

Musculoskeletal conditions, particularly osteoarthritis, account for >40 million disability-adjusted life years worldwide among persons aged 60 years and above. Research has also demonstrated that up to half of older adults have multimorbidity, which requires optimization for pos...

Customer-level factors associated with discretionary food and beverage purchasing in Aboriginal and Torres Strait Islander community stores in remote Australia: a customer intercept survey of Healthy Stores 2020

Abstract Background Healthy Stores 2020 (HS2020), a 12-week randomised controlled trial conducted in partnership with an Aboriginal-owned retail organisation, reduced retailer merchandising and store-level purchases of unhealthy foods. Evidence on the influence of customer-level...

Awareness and use of oral tobacco and nicotine products among people who smoke or recently stopped smoking: Descriptive findings from the 2024 EASE/ITC New Zealand Survey

ABSTRACT Introduction Aotearoa New Zealand (NZ) disallows sales of oral tobacco and nicotine products, although importation for personal use is permitted. The government proposes legalising sales, claiming this will aid smoking cessation among “older, long-term smokers.” We exami...

ODIN: Confirmation and 3D Reconstruction of Six Massive Protoclusters at Cosmic Noon

Abstract Protoclusters represent sites of accelerated galaxy formation and extreme astrophysical activity characteristic of dense environments. Identifying massive protoclusters and mapping their spatial structures are therefore crucial for understanding how large-scale environme...

Public perceptions of polygenic testing and embryo selection for non-medical traits

Abstract Some advances in reproductive technologies raise substantial ethical and psychological challenges, for example, the use of preimplantation genetic testing to select embryos based on non-medical traits. While studies have explored public willingness to use preimplantation...

Sexual dimorphisms in mechanisms of pressure natriuresis

Aim: The renal pressure-natriuresis response defines the blood pressure set point and maintains circulating volume. In male rats, the mechanisms involve trafficking and inactivation of renal proximal sodium transporters. Mechanisms may differ in females due to sex differences in...

State estimator design using Jordan based long short-term memory networks

State estimation of a dynamical system refers to estimating the state of a system given an imperfect model, noisy measurements and some or no information about the initial state. While Kalman filtering is optimal for estimation of linear systems with Gaussian noises, calculation...

Compositional neurosymbolic representations enable efficient active exploration

Abstract Autonomous systems that learn and explore over long horizons face a problem. Standard methods scale poorly in the number of observations, n , precluding sustained operation on bounded hardware. We show that compositional, high-dimensional vector representations inspired...

Navigating the Early Years: A Guide for New Faculty

ABSTRACT The transition from doctoral student to tenure‐track assistant professor marks a critical juncture in an academic career. This conceptual commentary offers experience‐based insights for early‐career accounting faculty, addressing the distinct pressures of a discipline sh...