Discrimination against drug addicts that suffer with an addiction, only a few will receive treatment due to the complexity of health care systems. Most health care systems do not have insurance coverage for addiction recovery and many health care providers have little to no training in treating addiction. Some doctors do not feel comfortable treating an addiction due to their lack of knowledge and training of the topic. This is one of the reasons why drug dependence is difficult to recover from. Among injecting drug users, the incidence of HIV infection is higher than among other drug addicts, however punitive and discriminatory measures against
Heat treating cylindrical retort made from high temperature alloy, filled with sand-like aluminium oxide particulate. Gas (air or nitrogen) is bubbled through the oxide and the sand moves in such a way that is exhibits fluid-like behaviour, hence the term "fluidised". The solid-solid contact of the oxide gives very high thermal conductivity and excellent temperature uniformity throughout the furnace, comparable to those seen in a salt bath. Heat treating Heat treating (or heat treatment) is a group of industrial and metalworking processes used to alter the physical, and sometimes chemical, properties of a material. The most common application is metallurgical. Heat treatments