WHAT IS SIMULATION? Computer simulation is the discipline of designing a model of an actual or theoretical physical system, executing the model on a digital computer, and analyzing the execution output.
Efficacy is defined as the maximum effect a drug can produce, regardless of the dose. Potency is related to the amount of drug needed to produce a given effect; it is often quantified by the ED50 or EC50, which are respectively the drug dose or concentration that causes 50% of the maximum effect. Affinity is defined as a drug's ability to bind to a receptor.
Efficacy spectrum of receptor ligands. An agonist is a chemical that binds to a receptor and activates the receptor to produce a biological response. Whereas an agonist causes an action, an antagonist blocks the action of the agonist and an inverse agonist causes an action opposite to that of the agonist.ypes of agonists [edit]. Receptors can be activated by either endogenous (such as hormones and neurotransmitters) or exogenous (such as drugs) agonists, resulting in a biological response.