Other blood tests which may be done include: 1  Blood clotting tests. The liver makes many of the proteins needed to make blood clot. 2  Gamma-glutamyltransferase (GGT, or 'gamma GT'). This is another enzyme that occurs in liver cells. 3  Immunology. Blood tests may be done to detect: Viruses and antibodies to viruses.
Definition [edit]. In the study of economics and market competition, collusion takes place within an industry when rival companies cooperate for their mutual benefit. Collusion most often takes place within the market structure of oligopoly, where the decision of a few firms to collude can significantly impact the market as a whole. Cartels are a special case of explicit collusion.
Five atoms are colored red so their paths of motion are easier to see. An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies after the encounter is equal to their total kinetic energy before the encounter. Elastic collisions occur only if there is no net conversion of kinetic energy into other forms (such as heat or noise).