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. 2009 Oct;134(4):339–350. doi: 10.1085/jgp.200910276

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© 2009 Goo et al.

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Figure 7. — Eccentricity (ε) and lengths of semimajor (a) and semiminor (b) axes of trabeculae of elliptical cross-sectional area such that the partial pressure of oxygen (p) would just fall to zero on the central axis (0, 0) when bathed in a solution equilibrated with 95% oxygen and respiring at a rate of 4.5 ml O₂ g⁻¹ min⁻¹. Note the logarithmic scale on the left-hand ordinate, where a and b have units of mm; ε (right-hand ordinate; see Eq. 1) is dimensionless.