More astonishing than the difference between the length of the lists of Old World's and New World's domesticated animals is the difference between the lengths of the lists of infectious diseases native to the two.
Fetal Hemoglobin Test. Definition. Fetal hemoglobin (Hemoglobin F), Alkali-resistant hemoglobin, HBF (or Hb F), is the major hemoglobin component in the bloodstream of the fetus. After birth, it decreases rapidly until only traces are found in normal children and adults. Purpose.
This special glass is called AR Glass. That stands for Alkaline Resistant, which is the specific trait required if it is to be used in a cement based matrix. It has that catchy name-Alkaline Resistant Glass-because it was coined by British engineers.