Conjunctivochalasis (CCh) Overview. Conjunctivochalasis (CCh) represents one of the most common age-related eye diseases and is characterized by the presence of redundant folds of the conjunctiva that typically are detected between the eyeball and the eyelids.
Reciprocity of liking (also known as reciprocity of attraction and reciprocal liking) describes the tendency for individuals to think positively of others who express positive regard for them.
A very deep and persistent line of philosophical discussion explores the way in which reciprocity can resolve conflicts between justice and self-interest, and can justify the imposition (or limitation) of social, political, and legal obligations that require individuals to sacrifice their own interests.