Authoritarian regimes are also sometimes subcategorized by whether they are personalistic or populist. Personalistic authoritarian regimes are characterized by arbitrary rule and authority exercised mainly through patronage networks and coercion rather than through institutitions and formal rules..
Fluid accumulation is the most common cause of conductive hearing loss in the middle ear, especially in children. Major causes are ear infections or conditions that block the eustachian tube, such as allergies or tumors.
When the portions of the ear that are responsible for transmitting the sound to the nerves are affected, it is referred to as conductive hearing loss. Conditions affecting the cochlea, eighth cranial nerve, spinal cord, or brain cause sensorineural hearing loss.