Författare: Alain Laurent

An aneurysm is a localized dilation of the wall of a blood vessel, usually caused by atherosclerosis and hypertension, or less frequently, by trauma, infection or a congenital weakness in the vessel …

Xianlai Zeng studied e-waste and urban mining as associate professor at Tsinghua University, obtaining a B.Sc. in 2002, an M.Sc. in 2005, and a Ph.D. in environmental science & engineering in 2014. H …