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.
Each type of hearing loss may have several different causes. Exposure to loud noise is a common cause of both hearing loss and tinnitus. Infections are also a common cause, as are birth defects, genetics and reaction to drugs, especially chemotherapy or drugs used for cancer treatment. Here are the different causes of each type of hearing loss. Causes of sensorineural hearing loss: 1  Aging.  Injury.