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.
These questions are the foundation of a sub-field of sociology known as criminology, and they can often be addressed using what is known as social bond theory. Developed by American criminologist Travis Hirschi in the late 1960s, social bond theory is sometimes referred to as social control theory.