Commentary: The moderately dilated ascending aorta: To wrap or not to wrap?

Biomechanical analysis of wrapping of the moderately dilated ascending aorta

BACKGROUND External wrapping is a surgical method performed to prevent the dilatation of the aorta and to decrease the risk of its dissection and rupture. However, it is also believed to cause degeneration of the aortic wall. A biomechanical analysis was thus performed to assess the stress of the aortic wall subjected to external wrapping. METHODS A stress analysis using the finite elements m...

Wrap Shading

Shading models that wrap around the hemisphere have been used to approximate subsurface scattering, area light sources, and softer reflectance profiles. We generalize a specific technique that has been used in games by parameterizing the amount of wraping while retaining important mathematical properties. We include details on how to incorporate theses models with spherical harmonic lighting. 1...

Dynamic cardiomyoplasty: time to wrap it up?

Fifteen years ago Larry Stevenson, in his memorable lectures, pointed to the great sheet of muscle that is the lat-issimus dorsi, and proposed that this potential power source should be harnessed for the purpose of circulatory assistance, and put to much better use as a cardiac muscle in patients handicapped and dying of heart failure. 1 Salmons and others 2 3 had demonstrated that this fast tw...

Wrap-up.

HOW to Wrap Axons with Crooked Neck

How can RNA processing direct specific aspects of nervous system development? In this issue of Neuron, Edenfeld et al. identified a novel function for two regulators of mRNA splicing in Drosophila: peripheral glial cells require Crooked neck (Crn) and Held out wings (HOW) to mediate migration and ensheathment of peripheral axons.