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.
In the minds of the Ancient Egyptians the pyramid form served a very serious purpose. Ancient Egyptians had a strong belief in life after death. The pharaohs wanted their bodies to last forever, so they had pyramids built to protect their bodies after death. Each pyramid housed a pharaoh's preserved body.he Egyptians did so much for the kings and queens because they believed that in their afterlife they will become one of the great gods or goddesses. That's why in their tomb there is so much gold and riches. The shape of the pyramid shows that it comes to a point at the top which is where the pharaohs sit.