If you or a loved one is suffering from PPD, contact a doctor immediately-treatments, including antidepressants and talk therapy, are available and effective.
The design of controller is based directly on pseudo- partial-derivatives (PPD) derived on-line from the input and output information of the system using a novel parameter estimation algorithm.
Objective: to evaluate the value applied of PPD test in prevision the curative effect of PTB, to find out a prevision method for detecting the effect of PTB, and to guide treatment.