The spectre of COVID-19 and its global transformational legacy on all aspects teaching learning overshadows this issue the Canadian Journal Learning Technology. near-universal demand for remote reliance technologies not only transformed educational environment but also shifted many preconceived notions about interplay between dissemination knowledge technology. surge in technology's prominence ...

Nanoporous metal prepared by the corrosion of an alloy can take the form of monolithic, millimeter-sized bodies containing approximately 1015 nanoscale ligaments per cubic millimeter. Applications have been suggested, for instance in catalysis, sensing and actuation. Although the process of dealloying has seen many studies, the underlying processes remain to be clarified in more detail. Here we...

Lack of agreement among definitions of COPD, combined with delayed diagnosis in many patients, makes estimates of prevalence difficult. In 2008, 13.1 million U.S. adults (aged 18 and older) were estimated to have COPD, but close to 24 million U.S. adults have evidence of impaired lung function, thus indicating underdiagnosis of COPD. COPD accounted for 1.5 million emergency department (ED) visi...

O computed tomography there was extensive soft-tissue swelling of the cecum with a calcified fecalith (Fig. 2, arrow), which suggested diverticulitis. The patient was treated conservatively with antibiotics, and a few days later underwent a water-soluble contrast enema examination to exclude malignant disease of the cecum. This examination revealed a solitary cecal diverticulum with no evidence...