I'll use the example of siphon power - all Kinetic's targeted debuffs work this way, whether Health, Endurance or Speed is being sapped.
When you use siphon power on an enemy, your damage is increased, and theirs is decreased. If that enemy is killed, the damage buff affecting you continues to hold. The debuff would continue, only you killed the foe affected by it.
Eliminating foes will not change the buffs on yourself. Kinetics does not use any anchors, as it has no targeted toggles.
DON'T eat muffins while I'm developing you.
Pants! Turkey Magnates! A man in a box! Rogue AI! Come one, come all, to arc ID 10107 - It's [i]'Not as long as some other arcs'[/i]!
okay that helped , thank you 
all those powers , is there like an anchor ? that if you use all those bufs and debuffs will on a foe and it dies , will all the buffs go away until you use it on another 1 ?
like with radiation