The first term determines the nature of the drug's effect and how much drug is needed at the site of action to engage that site to a clinically meaningful extent in the usual patient. The second term in the equation determines the magnitude of the drug's effect by determining how much drug reaches the site of action.
Tsuki (çªã) , is the Japanese word for thrust, coming from the verb tsuku (çªã) , meaning to thrust. The second syllable is accented, with Japanese's unvoiced vowels making it pronounced almost like  ski  (but preceded by a t sound).
Chibiusa Tsukino is the civilian identity of Sailor Chibi Moon, and the princess of the 30th Century Earth. This is the first animated depiction of the original manga character. Chibiusa was bratty, slightly spoiled, and often got into fights with Usagi, even over the simplest things.