Aging effects coefficient

Still assuming that the limit f, —> —oo has been taken from the beginning, one can compute Cxx(t, f to) = J o dt Cvv(fi — 2) < 2- However, the full expression of Cxx(t, t to) is of no use in the analysis of aging effects, which will be seen to rely only on the expression for the time-dependent diffusion coefficient... 

AGE EFFECTS Mean absorption decreased In a linear monotonlc manner with Increasing age as shown In Figure 8. The plotted curve Is a linear least squares fit to the experimental points which are shown with a range of + ISEM. The decrease In absorption with age could be expressed by the relationship A=69.5-0.123Y, where A Is percent absorption and Y Is age In years. These data Indicate that zinc absorption decreases by about a tenth of a percent per year over the age range studied and that the decrease was highly correlated with age (correlation coefficient -0.934, p<0.001). 

Copen WA, Schwamm LH, Gonzalez RG, Wu O, Harmath CB, Schaefer PW, Koroshetz WJ, Sorensen AG. Ischemic stroke effects of etiology and patient age on the time course of the core apparent diffusion coefficient. Radiology 2001 221 27-34. 

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