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.
Conductive hearing loss -- damage to ear drum or ossicular chain. Disruption to the ear drum or ossicular chain can cause conductive hearing loss. This means that hearing is better through bone than air. When the ear drum is perforated but ossicles remain attached the the reminant, hearing is reduced for air condition. Disruption to the ossicular chain -- the tiny bones between the ear drum and inner ear, can cause nearly complete hearing loss. Blood or fluid within the middle ear can reduce hearing.