A system for controlling an internal combustion engine. This invention also relates to pharmaceutical compositions comprising the proteins or peptides and methods for generating T lymphocytes capable of recognizing and destroying tumor cells in a mammal. The auxiliary bag, when detached, can be held by an attached carrying handle, or worn as a backpack by utilizing a separate pair of back straps. 1; M is selected from among H+, NH4+, one or more +n inorganic cations and combinations of same; X represents one or more +3 oxidation state chemical elements; Y represents one or more +4 oxidation state chemical elements; and R represents one or more organic compounds. The scraping edge and channeling surfaces direct product away from the conveyor belt and over the outer surface of the scraper. For example, blood, saliva or other bodily fluid can be tested for binding to a bacterial toxin, and binding to tissue antigens selected from at least one of a gut-related antigen and a blood brain barrier-related antigen.