A Windows version of XCOM, the well-known program for calculating X-ray and gamma-ray attenuation coefficients and interaction cross sections, has been developed. The new program, called WinXCom, has an improved user interface.
We present an analogue of Uhlhorn's version of Wigner's theorem on symmetry transformations for the case of indefinite inner product spaces. This significantly generalizes a result of Van den Broek. The proof is based on our main theorem, which describes Nike Air Max 90 Premium the form of all bijective transformations on the set of all rank-one idempotents of a Banach space which preserve zero products in both directions.
Protein microarrays, one emerging class of proteomic technologies, have broad applications for discovery and quantitative analysis. A rapidly expanding use of this technology is the acquisition of information about the posttranslational modifications of proteins reflecting the activity state of Air Max 2014 White
signal pathways and networks, and is now employed for the analysis of biopsy samples in clinical trial research.
The use of a servo system, able to reproduce measured time-varying wind pressures on areas of cladding at full scale, has shown the dynamic response of some porous and flexible claddings systems to be non-linear and frequency-dependent, indicating that static proof testing methods may be inappropriate.