Summary. 1  Buoyancy (also known as the buoyant force) is the force exerted on an object that is wholly or partly immersed in a fluid. 2  The symbol for the magnitude of buoyancy is B or FB. 3  As a vector it must be stated with both magnitude and direction. Buoyancy (also known as the buoyant force) is the force exerted on an object that is wholly or partly immersed in a fluid. 2  The symbol for the magnitude of buoyancy is B or FB.
Epidemiologists collect and analyze data to investigate health issues. For example, an epidemiologist might collect and analyze demographic data to determine who is at the highest risk for a particular disease.pidemiologists collect and analyze data to investigate health issues. For example, an epidemiologist might collect and analyze demographic data to determine who is at the highest risk for a particular disease.
Pharmaco-epidemiology: Epidemiologists working in the area of pharmacoepidemiology apply epidemiologic reasoning, methods, and knowledge to the study of the uses and effects, beneficial and harmful, of prescription and over the counter drugs, biologics, vaccines, and medical devices in human populations.