[□=□]
[lemma=□]
The underlying principles are to refine goals until they are assignable to single agents , and to assign a goal to an agent only if the agent can realize the goal . It is possible for an ST agent to receive a CONNECT message that contains a known SID , but from an ST agent other than the previous - hop ST agent of the stream with that SID . After this discrepancy , the agents began to question her more closely , and her responses were evasive at best . Definition at line 842 of file agent_handler.c . A retired IRS agent , she still helps her friends with their tax returns and does crossword puzzles " to keep her brain working . Instead of cleaning each canister immediately after draining it , the new plan called for draining all of the canisters first , then cleaning them after all of the agent had been neutralized . One possible therapeutic approach entails the use of immunomodulators or agents which re-direct ore enhance the activity of the immune system . The assignment of responsibilities for goals to agents is a critical decision in the requirements engineering process as alternative agent assignments define alternative system proposals . The approach to elementary agent interaction with other agents and environment in terms of exchanged elementary environment excitations is described . Newly discovered or little known hazards associated with exposure to toxic substances or harmful physical agents , as well as hazards which may result from the limitations of particular protective equipment , procedures , engineering control systems , or other accident prevention techniques . Thus , despite their widespread use on the racetrack or show circuit , the question of whether these agents actually enhance the immune response of the athletic horse or reduce its chance for development of respiratory tract infections remains unknown .