1,158,820 results match your criteria: "Canada.; Centre de recherche du Centre Hospitalier de l'Universite de Montreal CRCHUM[Affiliation]"
Sci Data
January 2025
School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel.
The question of what processes can take place without conscious awareness has generated extensive research. Yet there is still no consensus regarding the extent and scope of unconscious processing, and past research abounds with conflicting results. A possible reason for this lack of consensus is the diversity of methods in the field, as the methodological choices might influence the results.
View Article and Find Full Text PDFNat Commun
January 2025
Florida Museum of Natural History, Dickinson Hall, 1659 Museum Road, Gainesville, FL, 32611, USA.
The Thorny Skate (Amblyraja radiata) is a vulnerable species displaying a discrete size-polymorphism in the northwest Atlantic Ocean (NWA). We conducted whole genome sequencing of samples collected across its range. Genetic diversity was similar at all sampled sites, but we discovered a ~ 31 megabase bi-allelic supergene associated with the size polymorphism, with the larger size allele having introgressed in the last ~160,000 years B.
View Article and Find Full Text PDFNat Commun
January 2025
Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, P. R. China.
The unsatisfactory ionic conductivity of solid polymer electrolytes hinders their practical use as substitutes for liquid electrolytes to address safety concerns. Although various plasticizers have been introduced to improve lithium-ion conduction kinetics, the lack of microenvironment understanding impedes the rational design of high-performance polymer electrolytes. Here, we design a class of Hofmann complexes that offer continuous two-dimensional lithium-ion conduction channels with functional ligands, creating highly conductive electrolytes.
View Article and Find Full Text PDFMicrosurgery
January 2025
Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Background: Acetylsalicylic acid (ASA) has been used in reconstructive microsurgery since the inception of the field. However, when compared to placebo groups, its efficacy is not confirmed. In our study, we hypothesize that the utility of ASA postoperatively in microvascular surgery is not associated with improved outcomes.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada.
Tambjamines are complex bipyrrole-containing natural products that possess promising bioactive properties. Although is known to produce both cyclic tambjamine MYP1 and the linear precursor (YP1), the biosynthetic machinery used to catalyze the site-selective oxidative carbocyclization at the unactivated 1° carbon of YP1 has remained unclear. Here, we demonstrate that a three-component Rieske system consisting of an oxygenase (TamC) and two redox partner proteins is responsible for this unprecedented activity on YP1 and potentially, a non-native substrate (BE-18591).
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada.
Coal tar-related products as a source of polycyclic aromatic compounds (PACs) are particularly concerning due to high PAC concentrations and inadequate source management. Benzo[b]carbazole, a benzocarbazole isomer exclusively found in coal tar-derived products, acts as an ideal marker to distinguish coal tar sources from others, enabling more robust quantification of coal tar contributions to PACs. To evaluate the historical and recent contributions of coal tar-related sources to the levels of PACs in Lake Ontario and associated ecological risk, we analyzed 31 PACs and 3 BCBz isomers in surface sediments and a sediment core.
View Article and Find Full Text PDFAnn Fam Med
January 2025
University of Saskatchewan, School of Rehabilitation Sciences, Saskatoon, Saskatchewan, Canada
Purpose: People who are transgender or gender diverse (PTGD) often experience difficulties navigating the health care system due to a variety of factors such as lack of knowledgeable and/or culturally competent clinicians, discrimination, and structural and/or socioeconomic barriers. We sought to determine whether a peer health navigator service in the Canadian province of Saskatchewan helped connect transgender and gender-diverse clients and health care practitioners (HCPs) to resources, and how this service changed their health care experiences.
Methods: Semistructured interviews were conducted with 9 clients and 9 HCPs.
Ann Fam Med
January 2025
Clinical Skills Education Centre, Queen's University Belfast, Northern Ireland, United Kingdom.
There is a hum and drum to the clinical day, sounds and rhythms that pervade physician and patient's soundscape. We hear but we do not listen. The soundtrack of the daily grind is experienced as an audio blanket of white noise.
View Article and Find Full Text PDFeNeuro
January 2025
Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada.
Axons in the mammalian brain show significant diversity in myelination motifs, displaying spatial heterogeneity in sheathing along individual axons and across brain regions. However, its impact on neural signaling and susceptibility to injury remains poorly understood. To address this, we leveraged cable theory and developed model axons replicating the myelin sheath distributions observed experimentally in different regions of the mouse central nervous system.
View Article and Find Full Text PDFBMJ Qual Saf
January 2025
Division of Plastic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada.
Evid Based Nurs
January 2025
Department of Family Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
Curr Top Dev Biol
January 2025
Daniel Baugh Institute for Functional Genomics and Computational Biology, Department of Pathology and Genomic Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States. Electronic address:
All-trans retinoic acid (ATRA) signaling is a major pathway regulating numerous differentiation, proliferation, and patterning processes throughout life. ATRA biosynthesis depends on the nutritional availability of vitamin A and other retinoids and carotenoids, while it is sensitive to dietary and environmental toxicants. This nutritional and environmental influence requires a robustness response that constantly fine-tunes the ATRA metabolism to maintain a context-specific, physiological range of signaling levels.
View Article and Find Full Text PDFCMAJ
January 2025
Division des maladies infectieuses (Grennan) et la British Columbia Centre for Disease Control (Grennan), University of British Columbia, Vancouver, C.-B.; Division des maladies infectieuses (Salit), University of Toronto, Toronto, Ont.; University Health Network (Salit), Toronto, Ont.
CMAJ
January 2025
Western Centre for Public Health and Family Medicine (Thornton); Schulich School of Medicine & Dentistry (Thornton, Morley), Western University, London, Ont.; International Olympic Committee (Thornton), Lausanne, Switzerland; Division of Geriatric Medicine, Department of Medicine (Sinha), Temerty School of Medicine, University of Toronto; National Institute on Ageing (Sinha), Toronto Metropolitan University, Toronto, Ont.
CMAJ
January 2025
Departments of Neurology and Neurosurgery (Pekeles, Altman), Pediatrics (Pekeles), and Pathology (Karamchandani), McGill University; Department of Neurology (Altman), Jewish General Hospital, Montréal, Que.
Can J Ophthalmol
January 2025
University of British Columbia, Vancouver, British Columbia, Canada.
Can J Ophthalmol
January 2025
Dalhousie University, Halifax, Nova Scotia, Canada.
Respir Physiol Neurobiol
January 2025
Respiratory Medicine, Allergology and Palliative Medicine, Department of Clinical Sciences in Lund, Lund University, Lund, Sweden.
Background/aim: Exertional breathlessness is a dominating symptom in cardiorespiratory disease, limiting exercise capacity. Multidimensional measurement has been proposed to capture breathlessness, but it is unknown whether it is useful to differentiate people with abnormal vs normal exertional breathlessness intensity.
Methods: This was a secondary analysis of a randomized controlled trial of outpatients aged ≥18 years performing a symptom-limited cycle incremental exercise test (IET).
Gastroenterology
January 2025
Division of Pediatric Gastroenterology, Hepatology and Nutrition, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Prev Med
January 2025
School of Kinesiology, Faculty of Health Sciences, Western University, London, ON, Canada; ParticipACTION, Toronto, ON, Canada.
Objective: To update the evidence on the effects of financial incentives (FI) on physical activity (PA) in adults.
Methods: A systematic search of nine databases (Medline, EMBASE, PsychINFO, Scopus, Web of Science, CINAHL, EconLit, SPORTDiscus, and Cochrane) was conducted to identify randomised controlled trials (RCTs) and pilot RCTs published between June 1, 2018 and March 31, 2024 examining FI-for-PA interventions. 'Vote counting' and random-effects meta-analyses assessed short- (<6 months) and long-term (≥6 months) FI effects, as well as impact during follow-up (incentive withdrawal).
Bioresour Technol
January 2025
National&Local Joint Engineering Research Center of Metrology Instrument and System, College of Quality and Technical Supervision, Hebei University, Baoding 071002, China. Electronic address:
The combination of hematite and biochar significantly accelerated tetracycline (TC) removal under visible light irradiation. The k of TC removal with Hem/BC-5 reached 0.103 min, 3.
View Article and Find Full Text PDFLancet Diabetes Endocrinol
January 2025
Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5B7, Canada. Electronic address:
Int J Sports Physiol Perform
January 2025
Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada.
Purpose: Maximal muscle strength is often assessed with single-joint or repetition-maximum testing. The purpose of this study was to evaluate the reliability of countermovement-jump (CMJ) velocity-load testing and assess the relationship between CMJ velocity-load kinetics and concentric-isometric-eccentric multijoint leg-extension strength tested on a robotic servomotor leg press in trained athletes.
Methods: University athletes (N = 203; 52% female) completed 3 concentric, isometric, and eccentric maximum voluntary leg-extension contractions on the robotic leg press, followed by CMJ velocity-load testing with an additional external load of 0% (CMJBW), 30% (CMJ30), and 60% (CMJ60) of body mass.