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.
Robert Merton's Typology of Deviance The historic foundations of the Anomie or Strain Theory go back to the work on Emile Durkheim and Robert Merton. For both sociologists, the cause of deviance is found in disturbances in the social structure.