Publications by authors named "S Namvar"

Article Synopsis
  • Intra-annual variations of carbon stable isotope ratios (δ13C) in tree compartments can indicate plant carbon source-sink dynamics on a weekly basis, but tracking these variations has been challenging due to the complexity of tree ring development.
  • A new method was developed to monitor weekly δ13C variability in the cambium-xylem continuum of black spruce trees over multiple growing seasons in Quebec, allowing researchers to create δ13C series for both growing cambium and developing xylem cellulose.
  • Strong positive correlations between δ13C values suggest a consistent supply of fresh carbon to support tree growth, while trends in δ13C indicate potential shifts in carbon allocation strategies related to environmental factors such as seasonal light changes.
View Article and Find Full Text PDF

Background And Aims: Although the clinical benefit of percutaneous coronary intervention (PCI) on cardiovascular outcomes has been widely investigated, the impact of this revascularization strategy compared to other alternatives on the degree of left ventricular function recovery is poorly demonstrated. In this regard, we investigated whether time delays between the presentation of ST-segment elevation myocardial infarction (STEMI) and PCI in reperfusion strategies have different impacts on left ventricular function recovery.

Methods: In this single-center study, all the patients who presented with STEMI and a reduced left ventricular ejection fraction (LVEF ≤ 40%) were enrolled.

View Article and Find Full Text PDF

The inability to process many covalent organic frameworks (COFs) as thin films plagues their widespread utilization. Herein, a vapor-phase pathway for the bottom-up synthesis of a class of porphyrin-based COFs is presented. This approach allows integrating electrocatalysts made of metal-ion-containing COFs into the electrodes' architectures in a single-step synthesis and deposition.

View Article and Find Full Text PDF

Background And Objectives: There is a need to develop objective risk stratification tools to define efficient care pathways for trauma patients. Biomarker-based point of care testing may strengthen existing clinical tools currently available for this purpose. The dysregulation of pro- and anti-inflammatory cytokines in the pathogenesis of organ failure is well recognised.

View Article and Find Full Text PDF

The pathology specimen reception is fundamental to the services provided by Biomedical Science laboratories worldwide. To ensure patient safety and that samples are of adequate quality to send for analysis, prospective Biomedical Scientists should have a robust knowledge of the processes involved and the acceptance criteria of the pathology specimen reception. This knowledge has been highlighted by employers as a current gap in Biomedical Science graduates and therefore needs to be addressed within higher education settings.

View Article and Find Full Text PDF