Abstract: A dynamic decision forest may be used to guide clinical or other decision queries such that multiple decision trees are followed in sequence and jumps occur between decision trees based on previously received query responses and the system's determination of what useful data has not been gathered. For example, rather than storing data concerning all possible paths between various decision trees, a system using the dynamic decision forest may determine at the time of use that a jump should occur from one decision tree to another decision tree despite the system not being pre-populated with data representative of a relationship between the source and destination of the jump. A clinical note may be created based on the path followed through the dynamic decision forest, and iterative verification may be used in order to improve the likelihood that the correct path is being followed.

Abstract: A system for modifying and utilizing hydrocarbon fuels in the operation of internal combustion engines wherein increased fuel efficiency and reduction in amount of polluting products of combustion produced are realized. Hydrocarbon fuels normally entirely consumed in the operation of internal combustion engines are modified by separating lighter, highly volatile fractions of a paraffinic and ultrafast burning nature from the fuels and utilizing substantially only the lighter fractions for fueling the internal combustion engine, with the heavier fractions being stored separately from the original hydrocarbon fuel source. The lighter fractions permit operating the engine with a lean fuel mixture having a higher than stoichiometric air-to-fuel ratio, thereby better accommodating the characteristic intermittent fuel demand of the operator, reducing the production of undesirable nitrogen oxides, permitting the engine to operate at reduced operating temperatures and prolonging the useful life of engine components.