Nigeria has a long and sad history of bank failures. The problem became worse in the 1990s when many banks failed and in 2011 when several hitherto strong banks failed due to largely poor bank liquidity risk management. The Central Bank of Nigeria spent over US$6.8bn in purchasing the...

Objectives: The goal of this study is to analyze the evolution of technology in artificial heart valves for solving the problem of aortic stenosis (a narrowing of the aortic valve opening) that is one of the most common valvular heart diseases in society. In particular, this study explains the...