Comparison of first-passage-time distribution measures with and without breathing for both migration modes.

<p>Subfigures (A)–(C) show the FPT measures mean, median and probabilities of FPT above six hours for persistent random walk migration mode. Subfigures (D)–(F) show these measures for biased persistent random walk. The two breathing scenarios, resting condition (dashed lines) and heavy exercise (dotted lines) are shown together with the static case (lines) of a constant deflated alveolus. The parameters for the static case and the breathing scenarios are summarized in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0111630#pone-0111630-t002" target="_blank">Table 2</a>.