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.
âEpidemiology is the study of the distribution and determinants of health-related states or events in specified populations, and the application of this study to the control of health problems.â (2). âEpidemiology is the study of the distribution and determinants of disease frequency in man.â (3). These definitions of epidemiology include several terms which reflect some of the important principles of the discipline: Study-Epidemiology is a scientific discipline and has at its foundation, sound methods of scientific inquiry.