Further, African Americans did not have the freedom to choose where and how to live due to the effects of state-sponsored restrictive covenantsâlegally binding contracts making it illegal to rent, sell, or lease housing to black people (in some regions it included other nonwhites).
Nonarteritic anterior ischemic optic neuropathy (NAION) is the most common clinical presentation of acute ischemic damage to the optic nerve.Most treatments proposed for NAION are empirical and include a wide range of agents presumed to act on thrombosis, on the blood vessels, or on the disk edema itself.onarteritic anterior ischemic optic neuropathy (NAION) is the most common clinical presentation of acute ischemic damage to the optic nerve.
Naegleria fowleri (commonly referred to as the brain-eating amoeba or brain-eating ameba), is a free-living microscopic ameba * , (single-celled living organism). It can cause a rare ** and devastating infection of the brain called primary amebic meningoencephalitis (PAM).The ameba is commonly found in warm freshwater (e.g. lakes, rivers, and hot springs) and soil.Naegleria fowleri usually infects people when contaminated water enters the body through the nose.n very rare instances, Naegleria infections may also occur when contaminated water from other sources (such as inadequately chlorinated swimming pool water or heated and contaminated tap water) enters the nose.