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.
Except for a brief period of time when Akhenaten tried to instill a monotheistic dedication to one god, Egypt was ruled by numerous gods and goddess. The ancient Egyptian religion was polytheistic, meaning the ancient Egyptians worshiped many gods (there are about 2000 known gods and goddesses).The gods played important roles in the daily lives of the ancient Egyptians. There were two levels of gods: local gods and national gods.he ancient Egyptian religion was polytheistic, meaning the ancient Egyptians worshiped many gods (there are about 2000 known gods and goddesses). The gods played important roles in the daily lives of the ancient Egyptians.