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..
Common causes of conductive hearing loss include: 1  Cerumen (earwax) or foreign body in the external auditory canal. 2  Otitis externa, infection or irritation of the outer ear.  Exostoses, abnormal growth of bone within the ear canal.
Therefore, tinnitus is common and in most, but not all, cases it is associated with some degree of hearing loss. The most common causes of tinnitus are damage to the high frequency hearing by exposure to loud noise or elevated levels of common drugs that can be toxic to the inner ear in high doses. For example, after you have been to a loud rock concert you may experience tinnitus for a while in association with dulling of hearing.