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Improved local-field corrections to the G_ {0} W approximation in jellium: Importance of consistency relations

We study the effects of local vertex corrections to the self-energy of the electron gas. We find that a vertex derived from time-dependent density-functional theory can give accurate self-energies, provided, however, a proper decay at large momentum transfer (large q) is built into the vertex function. (The local-density approximation for the vertex fails badly.) Total energies are calculated from

Power reductions in unrolled CORDIC architectures

This paper shows a novel methodology to reduce the power consumption and complexity in unrolled CORDIC architectures. It is a methodology is based on removing adder and subtractor stages starting from the first stage. The stages are replaced with a number of MUXes. Three to four stages can be removed with substantial reduction in complexity and power consumption. The methodology is applicable on C

Nu-gap Model Reduction in the Frequency Domain

In this paper a model reduction algorithm in the nu-gap metric is considered. The metric was originally developed to evaluate robustness of a controller for a given plant. In fact, the nu-gap metric induces the weakest topology in which stability is a robust property. All in all the nu-gap metric is perhaps the best metric to evaluate the distance between two systems in a closed loop setup. In the

Being with others: The commodification of relationships in tourism

The myriad of interpersonal relationships in tourism, between tourists, between tourists and locals, and between tourists and the service providers, are essential, generic components of the tourist experience. However, interpersonal relationships are emerging as a commercial value in the tourism industry as well, expressed for example in rural commercial home type of businesses, and in wellness-or