Relaion between BARANOV'S Mathematical Model and Sigmoid Curve

A new mathematical model for fitting an HPL radioimmunoassay curve.

A number of mathematical models have been tested for their suitability in representing the dose response curve of a specific assay of the hormone human placental lactogen (HPL).(1)A new equation Y = B[0.14 + 1/[1 + C log [1 + exp[X - D]]] where Y is the percentage activity or counts bound to the antibody and X is the HPL concentration is proposed as representing the overall shape of the curve. ...

A MATHEMATICAL MODEL TO DESCRIBE THE SYNERGISTIC EFFECT BETWEEN SULFAMETHOXAZOLE AND TRIMETHOPRIM

b a s e don folic acid biosynthetic pathway a mathematical model was made for bacterial growth to describe the synergistic effect between sulfamethoxazole and trimethoprim. The results obtained show a strong synergism at growth inhibiting concentrations of these two drugs. Two cyclic pathways included in the model are responsible for this synergism. The roles of these pathways in producing ...

Mathematical model of the interaction between baroreflex and cerebral autoregulation

Baroreflex (BR) and cerebral autoregulation (CA) are two important mechanisms regulating blood pressure and flow. However, the functional relationship between BR and CA in humans is unknown. Since BR impairment is an adverse prognostic indicator for both cardiac and cerebrovascular diseases it would be of clinical interest to better understand the relationship between BR and CA. Motivated by th...

Prediction of runoff and sediment from agricultural watersheds by a mathematical model 2 mathematical simulation

The Sigmoid Beverton-Holt Model Revisited

We will be examining the Sigmoid Beverton-Holt difference equation. It has been shown that when the Sigmoid Beverton-Holt has a p-periodically-varying growth rate, there exists a p-periodic globally asymptotically stable solution {xn}. In this paper we extend this result to include a more general class of Sigmoid Beverton-Holt functions. Furthermore, we consider the case in which the variables ...