Altruism (biology) most common mechanism of reciprocity in nature, this kind is present in humans, primates, and many other mammals. Also known as, "If you're nice, I'll be nice too." This mechanism of reciprocity is similar to the heuristic of the golden rule, "Treat others how you would like to be treated." Parties mirror one another's attitudes, exchanging favors on the spot. Instant attitudinal reciprocity occurs among monkeys, and people often rely on it with strangers and acquaintances. Also known as, "what have you done for me lately?" Individuals keep track of the benefits they exchange with particular partners, which helps them
European Society for Phenylketonuria and Allied Disorders Treated as Phenylketonuria some media attention. European Society for Phenylketonuria and Allied Disorders Treated as Phenylketonuria The European Society for Phenylketonuria and Allied Disorders Treated as Phenylketonuria (E.S.PKU) is a Europe-based non-profit organization. It was founded in 1987 by patient-driven associations to help improve the treatment of phenylketonuria (PKU) in Europe. The E.S.PKU has 41 member organizations from across Europe. One of the later countries to join was the French association Les Feux Follets in 2013. A member organization has to be a non-profit organization on a national level dealing with phenylketonuria patients. The E.S.PKU executive board is elected by the annual general