BACKGROUND: Whether cannabis is a risk factor for cardiovascular events is unknown. We examined the association between smoking cannabis and cardiovascular events in a cohort of older veterans (66 to ...

This paper provides concrete evidence that the expanding and accelerating Universe mathematically expressed by dark energy is ...

Background Heart auscultation is a widely used and cost-effective clinical tool for detecting valvular heart disease (VHD), ...

Blasting is considered an indispensable process in mining excavation operations. Generally, only a small percentage of the total energy of blasting is consumed in the fragmentation and displacement of ...