Demographia World Urban Areas and Population Projections accounts for more than 50% of world urbanization and includes all identified urban areas with 500,000 population or more. These urban areas cover only 0.3% of the world's land area. There is only the most limited data for smaller urban areas.he GRUMP overestimation is illustrated by the following. GRUMP places the total of all urban extents in the United States at 754,000 square kilometers, more than three times the 240,000 square kilometers reported by the Bureau of the Census in 2000.
Factor VII deficiency is a rare genetic bleeding disorder characterized by a deficiency or reduced activity of clotting factor VII. Clotting factors are specialized proteins that are essential for the blood to clot normally.
Coagulation and clotting are the same phenomenon. Medical term is coagulation while the lay term is clotting. Clotting is an easy term and doctors also are not above using it. Clot formation is one of the most important protective mechanisms in the body.hey are the intrinsic and the extrinsic pathway. There are various clotting factors produced by the liver and those are vital to the clotting process. Absence of these clotting factors interferes with clotting. Absence of factor VIII causes hemophilia A. Absence of factor IX causes hemophilia B (Christmas disease).