Progrès technique et inégalité

<p>The notation is the same as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0093617#pone-0093617-g004" target="_blank">Fig. 4</a>.</p

A spiral surface.

<p>The lines on the surface have equations <i>ρ</i> = const and <i>ϕ</i> = const. Color corresponds to height (<i>z</i> coordinate).</p

Scroll wave rotation period <i>T</i>, ms, as a function of total fiber rotation angle <i>α</i>, deg.

<p>Scroll wave rotation period <i>T</i>, ms, as a function of total fiber rotation angle <i>α</i>, deg.</p

Potential, mV, on the LV surface during scroll wave rotation (left) and tip trajectory for <i>D</i>₁∶<i>D</i>₂ = 1∶0.111 (red line) and for <i>D</i>₁∶<i>D</i>₂ = 1∶0.25 (black line) (right).

<p>The results are shown for model 2 (<i>γ</i>₀ = 0.2, <i>γ</i>₁ = 0.7, see text and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0093617#pone-0093617-t001" target="_blank">Table 1</a> for details).</p

Dependence of the total fiber angle on the model parameters .

<p>Dependence of the total fiber angle on the model parameters .</p

Arrival times, in ms, as a function of the distance from the stimulation point for the apical (<i>A</i>), epicardial (<i>B</i>), and endocardial (<i>C</i>) stimulation.

<p>The distance on the horizontal axis is measured in ms as the arrival time of the wave in the isotropic model (see text for more details). The red lines represent numerical experiments for total rotation angle <i>α</i> = 174°; the black lines represent for <i>α</i> = 16°; and the blue lines represent isotropy. The solid lines correspond to the case <i>D</i>₁∶<i>D</i>₂ = 1∶0.111, while the dashed lines correspond to the case <i>D</i>₁∶<i>D</i>₂ = 1∶0.25. The vertical segments display minimal and maximal arrival times in each group of nodes. The average, min, and max arrival times are displayed on the leftmost panels for <i>D</i>₁∶<i>D</i>₂ = 1∶0.111 and in the middle column for <i>D</i>₁∶<i>D</i>₂ = 1∶0.25. The right column compares the average arrival times.</p

Velocity of scroll wave filament drift for the simulation of 8 s.

<p>Average filament velocity <i>V_c</i>, mm/s (A). Velocity components multiplied by 1000, per second: latitudinal component <i>v_ψ</i> (B) and longitudinal component <i>v_ϕ</i> (C).</p

Arrival times, in ms, of the waves after point stimulation at the apex for various values of anisotropy and fiber rotation.

<p>The values of anisotropy are shown at the top of the figure and the values of the fiber rotation are shown in the left column. For details, see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0093617#pone-0093617-t001" target="_blank">Table 1</a>. Arrival times are color-coded in ms.</p

A spiral surface viewed from the top (left panel) and side (right panel).

<p>Two myofibers are displayed in red and black.</p

Arrival times, in ms, of the waves after point stimulation at the epicardial surface for a large anisotropy ratio <i>D</i>₁∶<i>D</i>₂ = 1∶0.111.

<p>The notation is the same as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0093617#pone-0093617-g004" target="_blank">Fig. 4</a>.</p