Focal intestinal metaplasia is the potentially reversible change from a fully differentiated stomach cell type to an intestinal cell type. It is associated with significantly increased risk of cancer. . Proper diagnosis and treatment can reduce the risk of gastric cancer. slide 1 of 6.
The ozone depletion potential (ODP) of a compound is a simple measure of. its ability to destroy stratospheric ozone. It is a relative measure: the ODP of CFC-11 is defined to be 1.0, and the ODP's of other compounds. are calculated with respect to this reference point. Thus a compound with.
Halon. In the mid to late 1980âs evidence was gathered that pointed to Halon 1301 (and other Halogenated chemicals) as contributing significantly to the depletion of the earthâs stratospheric ozone layer, which shields the planet from damaging UV-B radiation.eside the fact that Halon 1301 is a known ozone depleting chemical, there is absolutely nothing wrong with existing Halon systems if they are properly maintained. As stated previously Halon 1301 is an excellent fire suppression agent.