Microscopy from Scientific Research

Table enumerating the types of translational and orientational correlations associated with the different material phases. The translational correlations are measured using the pair correlation function g ( r ). Note that unlike a crystal, an orientationally ordered phase is characterized by a gas of defects. The image in the inset shows the edge defects introduced into rows of cells by division during a time when the germband is fourfold ordered. The cyan lines are a visual guide to distinguish the rows of cells and terminate either on the region boundary or at a left/right defect.

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