Refraction corrected transmission imaging based on Bézier curves: first results with KIT 3D USCT

AbstractThe computational complexity of wave-based image ultrasound transmission reconstructionsis very high especially in 3D. Hence, ray-based approximations are often used. Bent rayapproaches like the fast marching method are time-consuming in comparison to the straightray approximation. The B ́ezier curve technique for refraction approximation, introduced byPerez-Liva et al., could be a compromise between computational effort and image quality. Inthis work, the method was extended to 3D and an evaluation on two 3D datasets was carriedout. The first dataset was simulated with the k-wave toolbox, with hemispherically arrangedemitters and receivers and a sound speed inhomogeneity. With a mean squared error of 9.98m/s the method produces similar results as the fast marching method (11.85 m/s). The objectsize is represented better in comparison to the straight ray method. Applied to real data ofthe KIT 3D USCT both methods performed similarly. The object size was better preservedusing bent ray methods. The B ́ezier bent ray method shows first promising results in 3D asit leads to similar results than the fast marching method

ICAT: a novel algorithm to robustly identify cell states following perturbations in single cell transcriptomes

IOS-1656752 - National Science FoundationFirst author draf

The different calcium requirements of the mitogenic effects elicited in primary neonatal rat hepatocytes by the diterpene phorbol esters 12-O-tetradecanoyl-phorbol-13-acetate and sapintoxin A.

The different calcium requirements of the mitogenic effects elicited in primary neonatal rat hepatocytes by the diterpene phorbol esters 12-O-tetradecanoyl-phorbol-13-acetate and sapintoxin A are reported

The mitogenic effects of Sapintoxin A in primary neonatal rat hepatocytes are calcium-dependent.

The mitogenic effects of Sapintoxin A in primary neonatal rat hepatocytes are shown to be calcium-dependent