Generalized Phase Space Representation of Operators

Introducing asymmetry into the Weyl representation of operators leads to a variety of phase space representations and new symbols. Specific generalizations of the Husimi and the Glauber-Sudarshan symbols are explicitly derivedComment: latex, 8 pages, expanded version accepted by J. Phys.

Biorthogonal box spline wavelet bases

Some specific box splines are refinable functions with respect to n x n expanding integer scaling matrices M satisfying M"n = 2I. Therefore they can be used to define a multiresolution analysis and a wavelet basis associated with these scaling matrices. In this paper, we construct biorthogonal wavelet bases for this special subclass of box splines. These specific bases can also be used to derive wavelets with respect to classical dyadic scaling matrices. (orig.)Available from TIB Hannover: RN 8680(122) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Wilderness Medical Society Practice Guidelines for the prevention and treatment of frostbite

The Wilderness Medical Society convened an expert panel to develop a set of evidence-based guidelines for the prevention and treatment of frostbite. We present a review of pertinent pathophysiology. We then discuss primary and secondary prevention measures and therapeutic management. Recommendations are made regarding each treatment and its role in management. These recommendations are graded based on the quality of supporting evidence and balance between the benefits and risks/burdens for each modality according to methodology stipulated by the American College of Chest Physicians