Abstract: Atrial repolarization (Ta wave) characteristics has not been well studied for atrial arrhythmia diagnosis unlike other ECG waves, as it is obscured by QRS complex. Hence, this study proposes ...

Travel through 4.6 billion years of our planet's history and help protect its future. Snap a selfie with a piece of Mars, touch a fragment of the Moon and lay your hands on a meteorite older than our ...