Publications by authors named "F N Gagnon"
Background: Whether to stop oral anticoagulants after a first unprovoked venous thromboembolism (VTE) is challenging, partially due to an intriguingly higher risk of VTE recurrence (rVTE) in men after therapy discontinuation. DNA methylation (DNAm) differences between men and women might underly this sex-biased rVTE risk difference.
Aim: To investigate sex-specific associations between DNAm at cytosine-phosphate-guanine (CpG) sites and rVTE.
Integrating time-of-flight (ToF) measurements in radiography and computed tomography (CT) enables an approach for scatter rejection in imaging systems that eliminates the need for anti-scatter grids, potentially increasing system sensitivity and image quality. However, present hardware dedicated to the time-correlated measurement of X-rays is limited to a small scale and low density. A switch to highly integrated electronics and detectors is needed to progress towards a medium-scale system capable of acquiring images, while offering a timing resolution below 300 ps FWHM to achieve scatter rejection comparable to current grids.
View Article and Find Full Text PDFVenous thromboembolism (VT) is a frequent (annual incidence of 1 to 2 per 1,000) and potentially life-threatening (case-fatality rate up to 10%) disease. VT is associated with serious short-term and long-term complications including a recurrence rate of approximately 20% within five years. Anticoagulant therapy, the mainstay of VT treatment, drastically reduces the risk of early VT recurrence, but it exposes patients to a substantial risk of bleeding.
View Article and Find Full Text PDFEvidence suggests young adults in post-secondary school experienced increased distress during the COVID-19 pandemic, but students' experiences likely varied. Effects may have also changed over time as students adapted. This study examined the mental health of students with and without preexisting health conditions at two points during the pandemic (winter 2020/2021 and spring/summer 2021).
View Article and Find Full Text PDFArticle Synopsis
- The study focuses on synthesizing diradical organic compounds, which are of interest due to their unique properties and potential applications, but creating stable versions is difficult.
- Researchers successfully synthesized four π-extended fluorene derivatives with high diradical character, leading to an unusual open-shell triplet ground state and a notable singlet-triplet energy difference of about 19 kcal/mol.
- These compounds feature dithiafulvene units that result in extended tetrathiafulvalenes, which are capable of reversible oxidations, and exhibit localized spin density and limited conjugation as analyzed through various spectroscopic methods and computational calculations.