10.6084/m9.figshare.c.3604511_D5.v1 Pedro Machado Pedro Machado Julia Duque Julia Duque Jocelyn Étienne Jocelyn Étienne Alfonso Martinez-Arias Alfonso Martinez-Arias Guy Blanchard Guy Blanchard Nicole Gorfinkiel Nicole Gorfinkiel Additional file 6 of Emergent material properties of developing epithelial tissues Springer Nature 2015 Viscoelastic fluid Mechanical properties Apical contraction Actomyosin Oscillations Hysteresis 2015-11-23 05:00:00 Journal contribution https://springernature.figshare.com/articles/journal_contribution/Additional_file_6_of_Emergent_material_properties_of_developing_epithelial_tissues/4342850 Figure S6. Sketch of the information flow used to infer emergent properties of amnioserosa. From the observation of strain dynamics and myosin activity, the microstructure model (Eq. 1) predicts the stress. The emergent rheology is then approximated by a linear relation (Eq. 2) between the predicted stress and the observed oscillatory strain, characterised for each developmental time t and frequency ω by the complex modulus E ∗(t,ω)=E exp(iδ). Averaging over all cells and over a range of frequencies yields the time evolution of representative emergent parameters, the average stiffness Ē $\bar {E}$ and loss tangent tan δ ¯ $\overline {\tan \delta }$ . (PDF 2099 kb)