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.
Pathologists are physicians who study and diagnose disease. They work primarily in community hospitals, university medical centers and reference laboratories, although some also work in private industry.A relatively small number become coroners or medical examiners. pathologist interprets the results of these tests to determine if a disease is present and how serious or advanced it might be. In addition to laboratory examinations, some pathologists perform autopsies, or post mortems, which can contribute valuable information about the cause of death and other medical conditions.