1,154,347 results match your criteria: "Canada; Charles Sturt University[Affiliation]"

Background: Nursing students are tasked with connecting theoretical knowledge with clinical practice to ensure patient safety and provide quality care. However, there is a distinct lack of research on nursing student learning transfer. More exploration and research are necessary to understand how nursing students apply their learning in complex and evolving clinical situations.

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OPMS - A web-based ocean pollution monitoring system.

Mar Pollut Bull

January 2025

University of Victoria, 3800 Finnerty Road, Victoria, BC V8W 2Y2, Canada. Electronic address:

Marine pollution poses significant risks to both marine ecosystems and human health, requiring effective monitoring and control measures. This study presents the Ocean Pollution Monitoring System (OPMS), a web application designed to visualize the seasonal and annual fluctuations of marine pollutants along coastal regions in Canada. The pollutants include fecal coliform and biotoxins such as paralytic shellfish poisoning (PSP), and amnesic shellfish poisoning (ASP).

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Towards transcervical ultrasound-guided transoral robotic surgery.

Oral Oncol

January 2025

Division of Otolaryngology-Head & Neck Surgery, Department of Surgery, University of British Columbia, Canada. Electronic address:

Background: In the context of transoral robotic surgery (TORS) for oropharyngeal squamous carcinoma (OPSCC), preoperative imaging and intraoperative visualization plays a pivotal role in optimizing resection margins. Prior work has demonstrated the ability of transoral ultrasound (US) in identifying OPSCC margins and vascular structures. This study evaluates the effectiveness of transcervical ultrasound (TUS), as well as other preoperative imaging modalities, in evaluating OPSCC volumes and compares this to post TORS pathological OPSCC volumes.

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Objective: The effectiveness and optimal stimulation site of deep brain stimulation (DBS) for central poststroke pain (CPSP) remain elusive. The objective of this retrospective international multicenter study was to assess clinical as well as neuroimaging-based predictors of long-term outcomes after DBS for CPSP.

Methods: The authors analyzed patient-based clinical and neuroimaging data of previously published and unpublished cohorts from 6 international DBS centers.

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Curvature Dependence of Gravitational-Wave Tests of General Relativity.

Phys Rev Lett

December 2024

Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USA.

High-energy extensions to general relativity modify the Einstein-Hilbert action with higher-order curvature corrections and theory-specific coupling constants. The order of these corrections imprints a universal curvature dependence on observations while the coupling constant controls the deviation strength. In this Letter, we leverage the theory-independent expectation that modifications to the action of a given order in spacetime curvature (Riemann tensor and contractions) lead to observational deviations that scale with the system length scale to a corresponding power.

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High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.

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Metallic Bonding in Close-Packed Structures: Structural Frustration from a Hidden Gauge Symmetry.

Phys Rev Lett

December 2024

Department of Physics, Brock University, St. Catharines, Ontario L2S 3A1, Canada.

Based on its simple valence electron configuration, we may expect lithium to have straightforward physical properties that are easily explained. However, solid lithium, when cooled below 77 K, develops a complex structure that has been debated for decades. A close parallel is found in sodium below 36 K where the crystal structure still remains unresolved.

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Objective: Malalignment following cervical spine deformity (CSD) surgery can negatively impact outcomes and increase complications. Despite the growing ability to plan alignment, it remains unclear whether preoperative goals are achieved with surgery. The objective of this study was to assess how good surgeons are at achieving their preoperative goal alignment following CSD surgery.

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Background: Virtual follow-up (VFU) has the potential to enhance cancer survivorship care. However, a greater understanding is needed of how VFU can be optimized.

Objective: This study aims to examine how, for whom, and in what contexts VFU works for cancer survivorship care.

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Article Synopsis
  • The paper discusses factors influencing the increased accessibility of medical assistance in dying (MAID) in Canada since its legalization in 2016.
  • It highlights the impact of vague legislative language, effective referral policies, centralized clinical services, and enhanced public awareness on the uptake of MAID.
  • The authors conclude by examining how these factors intersect to shape the ethical and moral complexities surrounding MAID accessibility.
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Oxylipin Profiling of Airway Structural Cells Is Unique and Modified by Relevant Stimuli.

J Proteome Res

January 2025

Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg R3E0J9, Canada.

Article Synopsis
  • Oxylipins, which are lipid mediators derived from fatty acids, play crucial roles in respiratory health, but their profiles in lung structural cells are not fully understood.
  • The study measured 162 oxylipins in airway smooth muscle, lung fibroblasts, and epithelial cells, both at baseline and after exposure to various stimuli.
  • Results showed that airway smooth muscle and lung fibroblasts had similar oxylipin profiles dominated by CYP450 metabolites, while epithelial cells had a unique profile rich in COX-derived oxylipins, with distinct changes noted upon stimulation that could impact respiratory function.
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  • The study investigates risk factors for proliferative vitreoretinopathy (PVR), a common complication after retinal detachment surgery.
  • A large patient database was analyzed, identifying systemic (like age, gender, and smoking) and ocular (such as trauma and previous eye conditions) factors that correlate with increased PVR risk.
  • The findings emphasize the importance of considering these risk factors in surgical planning and treatment to prevent PVR in patients with retinal detachment.
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Purpose: Continuous EEG (cEEG) monitoring is increasingly used in the management of neonates with seizures. There remains debate on what clinically relevant information can be gained from cEEG in neonates with suspected seizures, at high risk for seizures, or with definite seizures, as well as the use of cEEG for prognosis in a variety of conditions. In this guideline, we address these questions using American Clinical Neurophysiology Society structured methodology for clinical guideline development.

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Renal Tubule-Specific Angiotensinogen Deletion Attenuates SGLT2 Expression and Ameliorates Diabetic Kidney Disease in Murine Models of Type 1 Diabetes.

Diabetes

January 2025

Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM) and Département de médecine, Université de Montréal, 900 Saint Denis Street, Montréal, QC Canada H2X 0A9.

The role of the intrarenal renin-angiotensin system (iRAS) in diabetic kidney disease (DKD) progression remains unclear. In this study, we generated mice with renal tubule-specific deletion of angiotensinogen (Agt; RT-Agt-/-) in both Akita and streptozotocin (STZ)-induced mouse model of diabetes. Both Akita RT-Agt-/- and STZ-RT-Agt-/- mice exhibited significant attenuation of glomerular hyperfiltration, urinary albumin/creatinine ratio, glomerulomegaly and tubular injury.

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Article Synopsis
  • The study focuses on using a recurrent neural network with complex numbers to perform image segmentation by analyzing spatiotemporal dynamics.
  • The network can effectively group different parts of an image based on the scene's structural features, demonstrating its versatility across various image types.
  • An exact mathematical solution of the network's dynamics is provided, clarifying how a single recurrent neural network with fixed weights can achieve object segmentation efficiently.
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Article Synopsis
  • Dry deposition plays a significant role in removing reactive organic carbon from the atmosphere, impacting airborne chemical reactions and transferring this carbon to other environmental systems.
  • Using aircraft measurements, researchers found that oil operations can lead to high deposition rates of organic carbon, reaching up to 100 tons per hour, with rapid lifetimes of about 4 hours that can compete with oxidation processes.
  • Traditional models for gas-phase deposition may not capture all deposited organic carbon, indicating a need to consider these deposition processes in assessing the effects on freshwater ecosystems, as they contribute significantly to the overall carbon balance compared to terrestrial sources.
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Studies have noted the connection between Mycobacterium avium subspecies paratuberculosis (MAP) and autoimmunity. MAP is an intracellular pathogen that infects and multiplies in macrophages. To overcome the hostile environment elicited by the macrophage, MAP secretes a battery of virulence factors to neutralize the toxic effects of the macrophage.

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Forests face an escalating threat from the increasing frequency of extreme drought events driven by climate change. To address this challenge, it is crucial to understand how widely distributed species of economic or ecological importance may respond to drought stress. In this study, we examined the transcriptome of white spruce (Picea glauca (Moench) Voss) to identify key genes and metabolic pathways involved in the species' response to water stress.

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Article Synopsis
  • People with brain injuries often have lower resiliency, making it crucial to measure resilience to help them cope with challenges.
  • The review identified nine self-report resiliency measures suitable for individuals after acquired brain injury and evaluated their reliability and usefulness based on established guidelines.
  • Future research could focus on applying these validated measures in clinical settings to enhance rehabilitation strategies aimed at improving resilience in patients with brain injuries.
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Article Synopsis
  • The risk of disruptions in national food supply is influenced by both local production and imports, yet most assessments overlook the climate effects on producing regions.
  • Using global crop modeling and current trade flows, the study compares domestic production impacts to broader consumption impacts that include climate effects from all supplying regions.
  • The findings indicate that climate change exacerbates supply risks for wealthier countries while potentially mitigating risks for lower-income nations, highlighting the critical need for a global perspective in food security strategies.
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Demographic aging and extended working lives have prompted interest in the physiological changes that occur with age, particularly in the lumbar spine. Age-related declines in muscle quality and intervertebral disc alterations may reduce muscular endurance, strength, and postural stability, potentially increasing the risk of musculoskeletal injuries in older workers. As experienced workers play an important role in addressing labor shortages, understanding the impact of age-related physiological changes on the biomechanical properties of the lumbar spine is key to ensure safe and sustainable employment for aging individuals.

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Age-related disparities in national maternal mortality trends: A population-based study.

PLoS One

January 2025

Center for Clinical Epidemiology, Lady Davis Institute, McGill University, Montreal, Quebec, Canada.

Objective: An upward trend in maternal age has been observed in the United States (US) over the last twenty years. The study objective was to examine the association of maternal age with maternal mortality in the US and examine temporal trends in mortality by maternal age.

Methods: A retrospective population-based analysis in the US between 2000-2019 was conducted using records from the Centers for Disease Control and Prevention's "Mortality Multiple Cause" and "Birth Data" files.

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Introduction: Unmet oral health needs remain a significant issue among immigrant adolescents, often exacerbated by experiences of racial discrimination. This study aimed to examine the associations between perceived discrimination and oral health behaviours in adolescents with immigrant backgrounds and explore the potential moderating role of resilience on this association.

Methods: Ethical approval for this cross-sectional study was obtained from the University of Alberta Research Ethics Board.

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Article Synopsis
  • Effective global action against antimicrobial resistance (AMR) requires a robust scientific policy interface to translate evidence into practice, an area currently lacking an authoritative entity.
  • The proposed Scientific Panel on Evidence for Action against AMR (SPEA) aims to fill this gap by enhancing global coordination, providing real-time evidence, and tracking progress towards AMR goals.
  • Drawing lessons from the Intergovernmental Panel on Climate Change (IPCC), this essay discusses the potential functions and governance models for SPEA to support equitable, evidence-informed policy-making while addressing inherent challenges.
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Article Synopsis
  • The study aimed to determine effective cutoff scores for the Psoriatic Arthritis Impact of Disease questionnaire (PsAID12) based on disease activity measures in patients with PsA.
  • Using data from the ReFlaP study, researchers analyzed scores to define disease states such as remission and varying impact levels, employing statistical methods to establish these cutoffs.
  • Results indicated that the PsAID12 score had high diagnostic performance against established benchmarks, but further validation and expert consensus are needed to confirm the proposed cutoffs for clinical use.
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