Systemic cellular migration: The forces driving the directed locomotion movement of cells.

Moreover, a Wilcoxon test comparing measured exponents to those from shuffled trajectories revealed highly significant long-range correlations in our data ( P -value ≅ 0, Z = −32.31), indicating the improbability of chance occurrence.

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The results of the DFA fluctuation analysis ( 79 ) show that the scaling exponent γ displays a total average (± SD) of 1.75 ± 0.12, indicating that the move-step trajectories exhibit a trend-reinforcing memory, that is, if the directional movements in the past show an increase in a set of their move-step values it is very likely to be followed by an increasing trend in the future; and vice versa, a decreasing trend in the past, is likely to be continued in the future.

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