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Full-Text Articles in Physical Sciences and Mathematics
A Mathematical Model For The Upper Limits Of Thyroid Volume In Adolescents, Jacob Treanor
A Mathematical Model For The Upper Limits Of Thyroid Volume In Adolescents, Jacob Treanor
Undergraduate Journal of Mathematical Modeling: One + Two
This paper describes a mathematical model that relates age to the volume of the thyroid gland, given in milliliters, of adolescents based on data from a 1997 study by the World Health Organization (W.H.O.) (World Health Organization, 1997). Using the upper limit per age group provided by the data, a model was constructed through integration of the second derivative of the data for males and females, ages 6-15. It was concluded that the upper limit for the thyroid volume could be expressed by one of two second order polynomial equations, depending on gender, with any values significantly larger than those …
Analysis Of Rainfall In Tampa, Amy Polen
Analysis Of Rainfall In Tampa, Amy Polen
Undergraduate Journal of Mathematical Modeling: One + Two
Rainfall for a region is very important to define, because it affects an ecosystem health, wildlife, and even human behavior. Using data obtained from National Oceanographic and Atmospheric Administration (NOAA) at the Tampa Bay International Airport and graphing it, the total rainfall for a year was estimated by both a rough trapezoidal Riemann’s sum approximation and a definite integral generated by polynomial regression. It was determined that both approximations gave an underestimate of the total rainfall that was measured, but the polynomial integral gave a reasonable estimate with a small percent error. It was seen through the graphical representation of …