I summarize Xray properties of high redshift radio galaxies, beginning with a brief review of what has been learned from Xray observations of low redshift powerful radio galaxies (in particular, Cygnus A), and then turning to Chandra observations of four high redshift radio galaxies. Hot Xray emitting atmospheres of the type seen in low redshift clusters are not detected in the high redshift so...

Previous studies suggest that information technology (IT) is critical to the development of collaboration between supply chain partners. Our study posits that the effect of IT is not predetermined by its technological capabilities. Rather, its effect on interorganizational collaboration is the emergent properties of the interplay between IT and existing relationships between partners. Based on ...

Understanding the internal workings of classes is a key prerequisite to maintaining an object-oriented software system. Unfortunately, classical editing and browsing tools offer mainly linear and textual views of classes and their implementation. These views fail to expose the semantic relationships between the internal parts of a class. We propose XRay views —a technique based on Concept Analy...