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Burn diagnosis using laser speckle light typically employs widefield illumination of the burn region to produce two-dimensional speckle patterns from light backscattered from the entire irradiated tissue volume. Analysis of speckle contrast in these time-integrated patterns can then provide information on burn severity. Here, by contrast, we use point illumination to generate diffuse reflectance laser speckle patterns of the burn. By examining spatiotemporal fluctuations in these time-integrated patterns along the radial direction from the incident point beam, we show the ability to distinguish partial-thickness burns in a porcine model in vivo within the first 24 hours post-burn. Furthermore, our findings suggest that time-integrated diffuse reflectance laser speckle can be useful for monitoring burn healing over time post-burn. Unlike conventional diffuse reflectance laser speckle detection systems that utilize scientific or industrial-grade cameras, our system is designed with a camera-phone, demonstrating the potential for burn diagnosis with a simple imager.

(Birth. 2019;46:623–627)External cephalic version (ECV) is a well-established procedure that improves maternal and neonatal outcomes. However, the literature has produced varied results as to the risk and rate of cesarean delivery after successful ECV. Differing results also have been reported when comparing spontaneous labor after ECV versus induction of labor after ECV. The aim of this study was to compare obstetrical and neonatal outcomes after successful ECV among those who underwent immediate labor induction versus those who were managed expectantly.

The 2-projection property was introduced by Corominas for ordered sets; it was generalized to other structures and arities by Pouzet, Rosenberg and Stone and independently by Davey, McKenzie, Nation and Pálfy. We investigate triangle-free projective graphs and give a characterization for graphs that satisfy a certain condition on their cycles. In those cases, projectivity is equivalent to quasiprojectivity. As a corollary, we obtain a characterization of projective orders of height 1.