Patients selecting mechanical heart valve replacements are typically required to monitor their INR levels (international normalized ratio) to prevent risks of blood clotting, hemorrhage or stroke. To ease this process, home INR testing machines are now becoming more affordable and easy-to-use.
Archaeologists and historians don't know exactly how Egyptian civilization evolved. It is believed that humans started living along the Nile's banks starting in about 6,000 B.C.E. For the earliest inhabitants of the Nile Valley food was not easy to find.
History and Ethnic Relations. Emergence of the Nation. The first known civilization to inhabit the region of present-day Sudan were the Meroitic people, who lived in the area between the Atbara and Nile Rivers from 590 B.C.E. until 350 B.C.E. , when the city of Meroe was ransacked by the Ethiopians.