I have two provocations to share: one theoretical, having do with the revision text of Moby-Dick; other practical, visualizing versions in editing Billy Budd. Both are rooted material and yet digital; both engage readers creative interpretations revision.

Scleractinian reef-coral species display high phenotypic plasticity in skeletal morphology. Understanding environmental and physiologic controls on this variation is essential to explaining the distribution and abundance of coral species as well as understanding their susceptibility to pollution and global climate change. Here we assess phenotypic plasticity in the corallite morphology of genet...

filling defects are often observed on 99mtc sulfur colloid liver scans. hot spots are much less frequently seen. superior vena cava syndrome is the most frequent cause of this finding. in this report 3 patients with s.v.c and budd - chiari syndrome with hot spot on liver scan are presented. mechanisms of scintigraphic patterns are reviewed.

Budd-Chiari syndrome (BCS) is a rare condition which occurs when there is obstruction of the hepatic veins. It includes any condition in which there is obstruction to venous flow from the small hepatic veins to the inferior vena cava. It should be differentiated from veno-occlusive disease in which the sinusoidal epithelial cells of the hepatic venules are damaged; this mainly occurs after stem...

Obstruction of the hepatic venous outflow tract results in increased hepatic sinusoidal pressure and portal hypertension. In the early stages, portal venous perfusion of the liver is decreased, which may result in portal venous thrombosis. 2 The ensuing venous stasis and congestion lead to hypoxic damage to adjacent hepatic parenchymal cells. Furthermore, the ischemic injury to the sinusoidal l...