Hypothyroidism your body functions slow down, making you gain weight and dehydration, or not getting enough fluid, causes dry sticky mouth, what we do know is that several chemicals produced by the can cause itching, most notorious being histamine.
Operations Research (O.R.), or operational research in the U.K, is a discipline that deals with the application of advanced analytical methods to help make better decisions.
Operational Definition. (Measures) Operational Definition. The term operational definition refers to a precise statement of how a conceptual variable is turned into a measured variable. Research can only proceed once an adequate operational defi nition has been defi ned.