Intestinal metaplasia is also a common in Barrett esophagus. It this condition it is the esophageal squamous epithelial cells that undergo metaplasia. Approximately, 60% of esophageal cancers diagnosed in the U.S. stem from focal intestinal metaplasia.
Ozone Emission Sources. Emissions contributing to ozone formation come from many areas. The main emission sources categories are: On-road - cars, trucks, and buses. Off-road - aircraft, locomotive,etc. Non-road - construction, agricultural equipment, etc. Point - cement and power plants.
A current source is a piece of equipment that is used to produce or receive an electric current. It is related to the voltage source, which is the dual of the current source. Often, a current source will be used to power various machines, which can derive energy from the electric current produced. There is a wide range current sources available, such as resistor sources, active sources, radio frequency (RF) current sources, and direct current (DC) and alternating current (AC) sources.