âWe found that the area, perimeter, length, and width of the lamina were highly correlated, suggesting the existence of a common genetic control.â âFinally, if the rope is short enough (less than half the perimeter of the barn), the problem simplifies immensely.â âYou calculate the perimeter by multiplying the diameter by pi.â
You can expect to be paid anywhere from $20 to $50 per donation. The range in compensation is related to the volume of plasma you're able to donate. The FDA sets the guidelines and the ranges are 110-149 pounds, 150-174 pounds, and 175-400 pounds.
The compensation varies based on you and how often you donate. A lot of plasma donation centers run promotions where you get paid more if you donate more often. For example, ADMA BioCenters in Atlanta has a coupon for an extra $5 on your first donation and pay more if you have a special antibody (Anti-D).