Determine if you are required to file a tax return. You are required to file a federal income tax return if you are a citizen or resident of the United States or a resident of Puerto Rico. Your marital status, age, filing method, and income all affect whether or not you are required to file taxes.
Racial profiling is the act of suspecting or targeting a person of a certain race based on a stereotype about their race.
Steroid profiling is one of the most commonly adapted methodologies in doping control laboratories for the detection of steroid abuse in sport drug testing [1] and [2]. A steroid profile is made up of concentrations and ratios of various endogenous urinary steroidal species.