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.
What is an Epidemiologist? Epidemiology is the study of the distribution and causes of disease. It aims to solve or control health problems. Epidemiology integrates experiments, risk assessment, statistical analysis, surveys, and interviews to study disease patterns. Epidemiologists investigate patterns and causes of diseases and injuries that affect people. They try to reduce diseases and injuries through community education and policy. Environmental epidemiologists study diseases that are known or suspected to be caused by environmental factors.