The purpose of this review is to investigate the clinical utility of functional brain imaging in patients with AD, brain tumours, epilepsy, MS, or Parkinsonâs disease. Because the focus is on clinical utility, the added clinical information that would be provided by Level 1 studies (i.e., studies of technical feasibility) is limited.
The Iron Industry. In the centuries before the Industrial Revolution, the quality of iron and the process of refining it had changed little in Great Britain. Iron had been used for agricultural tools, chains, locks, bolts, nails, horse stirrups, scythes, sickles, and anchors.
Iron is the major component of steel, with carbon being a distant second, at between 0.2% and 2.14%, depending on the grade. Carbon is the most cost-effective way to alloy iron, but other metals can be used to augment the element and to give the metal certain properties. The metal known as cast iron is actually steel that has a very high carbon content, which gives it a lower melting point and greater castability.