In this case, variability in the timing of rhodopsin desensitization produces variable amplitude SPRs, with less variability in response time course (Gross et al., 2012).
The key idea on this work is to estimate the worst-case variability in the dynamic feasibility constraints from simulations of the closed-loop process model using the worst-case realization in the disturbances.
It would be interesting to explore case variability in SP feedback in future research.
Furthermore, in most cases variability was increased in aged rats relative to young and middle-aged rats of the same strain, indicative of the emergence of individual differences in stress responsivity amongst older rats.
In both cases variability is very low.
In most cases variability within a single variety was much lower than among varieties.
However, as the sample size is smaller in these cases, variability is increased.
Caution must always be exercised in drawing conclusions from small scale qualitative studies, particularly one with the range of case variability present in this sample [ 36].
In all cases, increased variability in expression levels would facilitate reaching of the critical "triggering" parameters, thus its direct measurement may have diagnostic and prognostic value.
