Percutaneous replacement of the tricuspid valve with a bovine jugular venous valve (melody valve) mpu63zm/a was successfully undertaken in a 9-year-old boy.The patient had a previous history of bacterial endocarditis of the native tricuspid valve in infancy.Initially, a pericardial patch valve was created, followed by surgical replacement of the va
While the organizational dynamics of collective management systems have received much attention, relatively little work has focused on how households adapt their economic strategies in response to collective management regulations that impose constraints on the range of options available to households.In this paper we investigate the evolving inter
IntroductionThe collection and process of human brain activity signals play an essential role in developing brain-computer interface (BCI) systems.A portable electroencephalogram (EEG) device has become an important short stem pipet tool for monitoring brain activity and diagnosing mental diseases.However, the miniaturization, portability, and scal