In the medieval era, Iraq was the name of an Arab province that made up the southern half of the modern-day country. In today's Republic of Iraq, where Islam is the state religion and claims the beliefs of 95 percent of the population, the majority of Iraqis identify with Arab culture. The second-largest cultural group is the Kurds, who are in the highlands and mountain valleys of the north in a politically autonomous settlement.
Riluzole (Rilutek) is a drug used to treat amyotrophic lateral sclerosis and is marketed by Sanofi Pharmaceuticals. clinical study on mice has shown Riluzole to compensate for harmful glutamate levels and promote dendritic spine clustering in hippocampal circuits implicated in memory and emotion. Therefore, the drug may act as an effective treatment for age-related memory loss and other forms of cognitive decline.
Radioimmunoassay (RIA) is a very sensitive in vitro assay technique used to measure concentrations of antigens (for example, hormone levels in blood) by use of antibodies. As such, it can be seen as the inverse of a radiobinding assay, which quantifies an antibody by use of corresponding antigens. Although the RIA technique is extremely sensitive and extremely specific, requiring specialized equipment, it remains among the least expensive methods to perform such measurements.