TASK DEFINITION: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
PROBLEM: In his later work he distinguished between value that is invoked when an interpersonal exchange occurs and value as denoting the qualitative mental evaluation of elements. Using these definitions, he created an algebra of social exchange in his Sociological Studies. In his earlier work he argued that information processing is guided by a need for equilibrium, which is restored by either assimilating new information into old patterns, or altering the old pattern to accommodate the new information. Known for his belief in instinctual "schemas" of behavior at birth, he sought to understand the formation of knowledge in terms of "genetic epistemology. " FTP, name this French developmental psychologist, best known for positing four stages of development beginning with the sensorimotor.

SOLUTION: Social Science

PROBLEM: In plasmas, the ambipolar version of this phenomenon is inversely proportional to the collision frequency, while the classical form is directly proportional, and is a random-walk process. A semi-empirical formula can be used to describe the Bohn version, while classical cases are governed by Fick's laws and Graham's law. FTP, what is this process in which gases mix due to the random motions of their molecules

SOLUTION: Science

PROBLEM: Valproate, or Depakote, can cause encephalopathy in individuals in which this pathway is defective, and CSPI deficiency is a particularly severe disorder affecting this pathway. Disorders in this pathway may be treated with sodium phenylbutyrate, which is metabolized to phenylacetate in the body. One enzyme in this pathway is an isomer of an enzyme that makes up part of the CAD complex in pyrimidine biosynthesis; that enzyme is allosterically regulated by N-acetylglutamate and is called CPS-I. In one step in this pathway, carbamyl phosphate is combined with ornithine to produce citrulline. Originally discovered by Henseleit and Krebs, for 10 points, name this cycle which is used to remove nitrogen from unneeded amino acids from the body.

SOLUTION:
Science