On the right, the vase actually resembles two faces looking at each other. Perception is a psychological variable involved in the purchase decision process that is known to influence consumer behavior. Other variables included in this consumer process include: motivation, learning, attitude, personality, and lifestyle.
Transplanting trees seems like a straightforward process -- dig a hole, set the tree in it and fill the hole with dirt. Successfully transplanting key lime trees (Citrus aurantifolia) requires careful planning and thought to avoid transplant shock, however.
But hepatitis C can recur after a liver transplant. And the study also showed that this holds true for people with HIV. The hepatitis C virus came back in three of the six HIV patients who survived the liver transplant. One patient died from advanced liver disease and another from liver failure after rejection of the transplant.