The concept of a vision correcting display involves digitally modifying the content of a display using measurements of the optical aberrations of the viewer’s eye so that the display can be seen in sharp focus by the user without requiring the use of eyeglasses or contact lenses. Our first approach inversely blurs the image content on a single layer. After identifying fundamental limitations of...

The paramedian forehead flap has become the standard of care for major nasal reconstruction. The classic procedure involves a second-stage operation to divide and inset the external pedicle. We present our experience in a clinical series using single-stage forehead flap reconstruction. Our indications include elderly patients, pediatric patients treated during mission trips, and any patient in ...

Geert suggested in his Omaha paper that, in Chapter 1 of Volume 1 of Capital, there is a “shift” in Marx’s logic from Sections 1 and 2 to Section 3, and that this shift may not get the attention of the reader if Section 3 is read “with the labor-embodied spectacles” of Sections 1 and 2 (pp. 1112). Geert does not specify the precise nature of this “shift”, but the suggestion seems to be that the...

Lévy flights constitute a broad class of random walks that occur in many fields of research, from biology to economy and geophysics. The recent advent of Lévy glasses allows us to study Lévy flights-and the resultant superdiffusion-using light waves. This raises several questions about the influence of interference on superdiffusive transport. Superdiffusive structures have the extraordinary pr...

An introduction and overview is given of the theory of spin glasses and its application .

The preparation of amorphous nanopowders by flame synthesis opens access to common soda-lime, metal-doped glasses or bioglasses in the range of 20-80 nm and offers an alternative to conventional wet-phase preparation, solid state reactions or melting.