Cardiac electrophysiology is the science of elucidating, diagnosing, and treating the electrical activities of the heart. The term is usually used to describe studies of such phenomena by invasive (intracardiac) catheter recording of spontaneous activity as well as of cardiac responses to programmed electrical stimulation (PES).
Ancient Egyptian Pyramids in Giza. Egyptian pyramids are great monument of a great civilization that was born seven thousand years ago. The ancient Egyptians built more than 90 royal pyramids, from about 2630 BC until about 1530 BC.During that time, the pyramid shape evolved from a series of stepped terraces to sloped pyramidal shape.ncient Egyptian Pyramids in Giza. Egyptian pyramids are great monument of a great civilization that was born seven thousand years ago. The ancient Egyptians built more than 90 royal pyramids, from about 2630 BC until about 1530 BC.
The Pharaohs of Ancient Egypt were the supreme leaders of the land. They were like kings or emperors. They ruled both upper and lower Egypt and were both the political and religious leader. The Pharaoh was often thought of as one of the gods. The name Pharaoh comes from a word meaning great house describing a palace or kingdom. The Pharaoh's wife, or Queen of Egypt, was also considered a powerful ruler.