Figure 6 is not linear at all times, but have two regions linear.
The TRF does not become linear at later times but exhibits a visible curvature.
It is well known that the TRF after a bolus injection of FDG appears to be approximately linear at later times.
The results also indicate that the slope of the curve becomes linear at longer times, suggesting that the mass transfer of CO2 into water is controlled by classical molecular diffusion.
It was also a turning point as I found respect for my own non-linear and at times dancing mind, my own styles of discovering.
While the four participants in Table 2 are presented for their illustration of the overall trend we observed, we emphasize that individual narratives are complex, non-linear, and at times lacked internal consistency.
Substituting slope estimates for the differentials in this system of equations decouples the ordinary differential equations (ODEs) and results in a system of fluxes that is linear at each time point t[ 21, 28, 29].
Note that the EM algorithm requires the approximation of p(a i−1,z i−1,a i−1,z in1|y 1:n ) in the E-step, this may be obtained following the same steps by marginalizing explicitly the linear states at time i−2 and i+1.
Fluid uptake is linear at the earliest times measured with no evidence for rapid recycling of fluid in any of these strains, in agreement with earlier studies of axenic mutants (Aubry et al., 1993; Padh et al., 1993).
To test this further, we have measured the initial rate of fluid uptake at the shortest times practicable (set by the need for a signal above noise) and find, as expected, that uptake by the wildtype is much slower than NF1 mutants; uptake is linear at these short times arguing against the existence of a fast-recycling compartment.
