So here, we can only say that there is a range of possible rates of senescence of the radioactive sample, and if there is a really tiny rate of senescence, that range would still include zero.

Transverse amplitude increases when shear rate falls into the lock-in range and decreases sharply when shear rate is out of lock-in range.

The study indicates that the influence of Doppler effect on pseudo range observations is proportional to the product of pseudo range and the rate of pseudo range variation.