BACKGROUND Public health initiatives world-wide recommend increasing physical activity (PA) to improve health. However, the dose and the intensity of PA producing the most benefit are still debated. Accurate assessment of PA is necessary in order to 1) investigate the dose-response relationship between PA and health, 2) shape the most beneficial public health initiatives and 3) test the effecti...

In the present study, the feeding stage, body parts, development and sex specific activity of Glutathione S-transferases (GSTs) were observed in different mosquito species (Aedes aegypti, Culex quinquefasciatus, Anopheles stephensi, An. culicifacies, An. annularis, An. subpictus, An. vagus). GST activity was assayed spectrophotometrically at 23°C, using a UV Max microplate Reader, to measure th...

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Road safety is a very important issue in many jurisdictions. Road collisions, which have been identified as a major public health problem by the World Health Organization, are the 11th leading cause of global deaths.1 This problem is being addressed in North America through improved education, enforcement and engineering. Having access to better information systems and tools to support decision...