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.
A conductive hearing loss occurs when the ability to conduct sound from the external and middle ear into the inner ear is reduced or lost. A conductive hearing loss is a hearing loss where the ears ablility to conduct sound into the inner ear is blocked or reduced.