78,745 results match your criteria: "University of Ottawa & The Ottawa Hospital[Affiliation]"

Integrating climate and physical constraints into assessments of net capture from direct air capture facilities.

Proc Natl Acad Sci U S A

January 2025

Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, ON K1S 5B6, Canada.

Limiting climate change to targets enshrined in the Paris Agreement will require both deep decarbonization of the energy system and the deployment of carbon dioxide removal at potentially large scale (gigatons of annual removal). Nations are pursuing direct air capture to compensate for inertia in the expansion of low-carbon energy systems, decarbonize hard-to-abate sectors, and address legacy emissions. Global assessments of this technology have failed to integrate factors that affect net capture and removal cost, including ambient conditions like temperature and humidity, as well as emission factors of electricity and natural gas systems.

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How and why funders support engaged research.

Proc Natl Acad Sci U S A

January 2025

Ewing Marion Kauffman Foundation, Kansas City, MO 64110.

Research that better aligns policy, practice, and research communities is gaining momentum around the world. This includes engaged research strategies that bring partners, and their diverse perspectives and kinds of knowledge, together to shape research agendas with on-the-ground-needs and to create dynamic problem-solving processes. These approaches aim to generate more equitable and effective solutions to societal challenges.

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Estimated prevalence of post-intensive care cognitive impairment at short-term and long-term follow-ups: a proportional meta-analysis of observational studies.

Ann Intensive Care

January 2025

School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 5/F, 3 Sassoon Road, Academic Building, Pokfulam, Hong Kong.

Objective: Evidence of the overall estimated prevalence of post-intensive care cognitive impairment among critically ill survivors discharged from intensive care units at short-term and long-term follow-ups is lacking. This study aimed to estimate the prevalence of the post-intensive care cognitive impairment at time to < 1 month, 1 to 3 month(s), 4 to 6 months, 7-12 months, and > 12 months discharged from intensive care units.

Methods: Electronic databases including PubMed, Cochrane Library, EMBASE, CINAHL Plus, Web of Science, and PsycINFO via ProQuest were searched from inception through July 2024.

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Objective: To determine the feasibility, yield, and safety of fluoroscopic-guided aspiration of the acutely dislocated total hip arthroplasty (AD-THA).

Materials And Methods: IRB-approved, retrospective review of fluoroscopic-guided aspirations of AD-THA (January 2005-December 2023) was performed. Data from electronic charts and fluoroscopy images/reports were obtained.

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Human noroviruses are the leading cause of non-bacterial shellfish-associated gastroenteritis. In 2022, a multi-jurisdictional norovirus outbreak associated with contaminated oysters occurred that involved hundreds of illnesses. Here, we conducted genetic analysis on 30 clinical samples associated with this oyster outbreak.

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Prevalence of Depression Among People Living with HIV on Antiretroviral Therapy in Africa: A Systematic Review and Meta-Analysis.

Healthcare (Basel)

January 2025

Department of Life and Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa (UNISA), Science Campus, Private Bag X6, Florida, Roodepoort 1710, South Africa.

Background: HIV is a global health issue, with the highest number of infected individuals found in sub-Saharan Africa. The coexistence of HIV with depression is a huge challenge. This study aimed to investigate the prevalence of depression in people living with HIV (PLWHIV) who are on antiretroviral therapy (ART) in Africa.

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Cultural Determinants of Body Image: What About the Menopausal Transition?

Healthcare (Basel)

January 2025

School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada.

Body image is an important aspect of psychological well-being that is influenced by several biological and psychosocial risk factors. Cultural determinants of body image include the patterns of shared beliefs, values, practices, and social norms within a group that can act as a lens through which a person perceives, compares, and evaluates their body. Women tend to experience higher rates of body dissatisfaction than men, with reproductive milestones such as puberty, pregnancy, and postpartum being windows of vulnerability for body image concerns.

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A young, intact, female, American Bulldog was presented for hemorrhagic vaginal discharge. Anemia, thrombocytopenia, leukocytosis with neutrophilia, azotemia, and electrolyte disturbances were detected in the bloodwork. A urachal diverticulum with concurrent uterine distention was identified by ultrasonography and CT.

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Linking the macroscopic flow properties and nanoscopic structure is a fundamental challenge to understanding, predicting, and designing disordered soft materials. Under small stresses, these materials are soft solids, while larger loads can lead to yielding and the acquisition of plastic strain, which adds complexity to the task. In this work, we connect the transient structure and rheological memory of a colloidal gel under cyclic shearing across a range of amplitudes a generalized memory function using rheo-X-ray photon correlation spectroscopy (rheo-XPCS).

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Synthetic Dermal Fillers in Treating Acne Scars: A Comparative Systematic Review.

J Cosmet Dermatol

January 2025

College of Medicine, Department of Dermatology, Imam Mohammad Ibn Saud University, Riyadh, Saudi Arabia.

Background: Acne is a common condition observed in adolescents and in most severe acne the scars develop. There are numerous treatment options for acne scars. However, no standardized guidelines have been established to guide physicians in the optimal treatment of acne scars.

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Background: The increasing awareness of the emotional consequences of emergency cesarean deliveries (C-sections) highlights their substantial role in fostering postpartum post-traumatic stress disorder (PTSD). This systematic review and meta-analysis aim to evaluate the prevalence and determinants of PTSD following emergency C-sections, as well as the implications of these events on maternal mental health and welfare.

Methods: Undertaking extensive searches of Scopus, PubMed, PsycINFO, and Google Scholar, we have incorporated studies published from 2013 onwards that examined the occurrence of PTSD following emergency C-sections.

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Evidence-based policymaking has increased policymakers' capacity to make scientifically informed health policy decisions. However, reaping the benefits of this approach requires avoiding untrustworthy research - potential sources of which are predatory journals. In this study, we sought to understand how research cited in policy documents is sourced and evaluated, and identify factors that may be contributing to the citation of predatory journals or other less trustworthy evidence.

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Commutability is where the measurement response for a reference material (RM) is the same as for an individual patient sample with the same concentration of analyte measured using two or more measurement systems. Assessment of commutability is essential when the RM is used in a calibration hierarchy or to ensure that clinical measurements are comparable across different measurement procedures and at different times. The commutability of three new Standard Reference Materials (SRMs) for determining serum total 25-hydroxyvitamin D [25(OH)D], defined as the sum of 25-hydroxyvitamin D [25(OH)D] and 25-hydroxyvitamin D [25(OH)D], was assessed through an interlaboratory study.

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Graphene has unique properties paving the way for groundbreaking future applications. Its large optical nonlinearity and ease of integration in devices notably makes it an ideal candidate to become a key component for all-optical switching and frequency conversion applications. In the terahertz (THz) region, various approaches have been independently demonstrated to optimize the nonlinear effects in graphene, addressing a critical limitation arising from the atomically thin interaction length.

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Introduction: Long-term care (LTC) residents require extensive assistance with daily activities due to physical and cognitive impairments. Medical treatment for LTC residents, when not aligned with residents' wishes, can cause discomfort without providing substantial benefits. Predictive models can equip providers with tools to guide treatment recommendations that support person-centred medical decision-making.

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The fasting hypoglycemic effect of casein hydrolysate (CH) was investigated in db/db diabetic-like mice using a multiomics integrated analysis of peptidome, transcriptome, and metabolome. Results showed that the oral administration of CH at a dose of 600 mg/kg/day for 4 weeks reduced the fasting blood glucose levels by 14.73 ± 9.

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Background: Working from home during the Covid-19 pandemic was perceived differently by men and women working in STEM fields. The aim of this paper is to highlight the unexpected benefits generated by working from home during the pandemic.

Methods: Qualitative methodology was used to analyze data, collected via survey.

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Spatial unfolding of an extended La-140 source within a 0.5 km-wide exclusion zone using Compton gamma imaging measurements.

J Environ Radioact

January 2025

Canadian Hazards Information Service, Natural Resources Canada, Ottawa, Ontario, Canada.

Results from applying an advanced spatial-unfolding technique to outdoor-trial data acquired with a Silicon photomultiplier-based Compton Telescope for Safety and Security (SCoTSS) gamma imager during perimeter survey of a distributed La-140 source lying within a 500 m x 500 m exclusion zone are presented. A synthetic-data version of the experiment was also modelled using Monte Carlo simulations and reconstructed. For both experimental and synthetic data the method faithfully reproduces the shape of the activity distribution, and for synthetic data the total activity is reproduced as well.

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Background And Objective: It is unclear whether variation in covert cerebrovascular disease prevalence is attributable to ethnic differences or to other factors. We aimed to examine the associations of country of residence with covert vascular brain injury (VBI) and cognitive dysfunction among Chinese adults residing in Canada and China.

Methods: This was a multisite cross-sectional study of Chinese adults aged 40-80 years in the Canadian Alliance for Healthy Hearts and Healthy Minds (CAHHM; January 1, 2014, to December 31, 2018) and Prospective Urban Rural Epidemiological-Mind (PURE-MIND; November 1, 2010, to July 31, 2015) cohorts living in Canada and China.

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Health-Care Utilization of Children Born to Women with and Without Inflammatory Bowel Disease in the First Five Years of Life: A Population-Cohort Study.

Am J Gastroenterol

December 2024

Mount Sinai Centre for Inflammatory Bowel Disease, Division of Gastroenterology and Hepatology, University of Toronto, Toronto, Ontario, CANADA.

Background: Children born to women with inflammatory bowel disease (IBD) may have increased healthcare utilization in early life due to genetic susceptibilities and exposure to inflammation in utero, though this has not been robustly evaluated. We aimed to characterize healthcare use between these groups.

Methods: We accessed province-wide health administrative databases to identify children born to women with and without IBD between 2002-2019.

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Objective: To examine the evidence addressing the management of X-linked hypophosphatemia (XLH) in children to inform treatment recommendations.

Methods: We searched Embase, MEDLINE, Web of Science, and Cochrane Central up to May 2023. Eligible studies included RCTs and observational studies of individuals less than 18yrs with clinically or genetically confirmed XLH.

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Patient safety indicators for virtual consultations in primary care: A systematic review protocol.

PLoS One

January 2025

NWL Patient Safety Research Collaboration, Institute of Global Health Innovation, Imperial College London, London, United Kingdom.

Background: Virtual consultations are being increasingly incorporated into routine primary care, as they offer better time and geographical flexibility for patients while also being cost-effective for both patients and service providers. At the same time, concerns have been raised about the extent to which virtual care is safe for patients. As of now, there is no validated methodology for evaluating the safety nuances and implications of virtual care.

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Objectives: Despite being a frequent entry point of care, it remains unknown if families' needs are being met across pediatric emergency departments (PEDs). Study objectives were to describe caregivers' perceived overall PED experience and needs and to what extent these needs were met.

Methods: This descriptive, cross-sectional survey with medical record review was conducted in 10 Canadian PEDs.

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Health Professions Education (HPE) assessment is being increasingly impacted by Artificial Intelligence (AI), and institutions, educators, and learners are grappling with AI's ever-evolving complexities, dangers, and potential. This AMEE Guide aims to assist all HPE stakeholders by helping them navigate the assessment uncertainty before them. Although the impetus is AI, the Guide grounds its path in pedagogical theory, considers the range of human responses, and then deals with assessment types, challenges, AI roles as tutor and learner, and required competencies.

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