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Table 1 Examples of estimated van der Pol parameters.

From: A dynamic model of circadian rhythms in rodent tail skin temperature for comparison of drug effects

Examples of estimated van der Pol parameters

   

E2

    

Tibolone

  
 

P1

0.5000

0.4969

0.0100

4.6416

4.6416

0.5000

0.3753

0.2452

3.6932

3.6931

P2

2.7760

0.2000

0.4055

1.2618

1.2620

3.8264

0.2000

-0.1275

1.4968

1.4971

P3

0.5000

0.4552

-0.1423

2.9695

2.9695

0.9150

0.2000

-0.2483

3.8367

3.8363

  1. Examples of van der Pol model parameters estimated for animals of the E2 group and the Tibolone group. The estimated circadian components and amplitude functions are illustrated in Figures 4 and 5. : initial amplitude, : flexibility parameter, : angular phase shift, : limit cycle amplitude, : last amplitude function value estimated for an experimental phase.