Secretion. The stomach produces and secretes several important substances to control the digestion of food. Each of these substances is produced by exocrine or endocrine cells found in the mucosa. 1  The main exocrine product of the stomach is gastric juice â a mixture of mucus, hydrochloric acid, and digestive enzymes.
Strain theory in criminology has focused on the first type of strain, arguing that it is most responsible for the delinquency in our society. Major research traditions in the justice/equity field, however, argue that anger and frustration derive primarily from the second two types of strain.
April 15th, 2015. 'Differential Association theory is a criminology theory that looks at the acts of the criminal as learned behaviors. Edwin H. Sutherland is credited with the development of the Differential Association theory in 1939. Sutherland, a sociologist and professor most of his life, developed Differential Association theory to explain how it was that criminals came to commit acts of deviant behavior.