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.
Different parts of the hearing pathway can be affected, and loss is classified as conductive, sensorineural, or mixed, depending on the part of the pathway that is affected. Conductive hearing loss occurs when something blocks sound from reaching the sensory structures in the inner ear. The problem may involve the external ear canal, the eardrum (tympanic membraneâTM), or the middle ear.