The inverted lists strategy is frequently used as an index data structure for very large textual databases. Its implementation and comparative performance has been studied in sequential and parallel applications. In the latter, with relatively few studies, there has been a sort of “which-is-better” discussion about two alternative parallel realizations of the basic data structure and algorithms...

We generalize to composite operators concepts and techniques which have been successful in proving renormalization of the effective Action in lightcone gauge. Gauge invariant operators can be grouped into classes, closed under renormalization, which is matrix-wise. In spite of the presence of nonlocal counterterms, an “effective” dimensional hierarchy still guarantees that any class is endowed ...

This paper presents a novel collision avoidance approach in formation control for Multi-agent Robots. The control strategy consists in the mix of attractive vector fields and repulsive vector fields based on a scaled unstable focus centered at the position of another robot, instead of the vector fields obtained from the negative gradient of repulsive potential functions. The analysis of the clo...

yoghurt is a unique fermented dairy product, consumed throughout the world and the trend ofconsumption is increasing due to its unique health benefits. yoghurt mix is often supplemented with msnf(milk solids-non-fat), it may contain as much as 5.7% unhydrolysed lactose. lactose can be hydrolysed withan enzyme lactase. deficiency of lactase in lactose-intolerant persons leads to gastrointestinal...

Introduction: Increasing pressure on available funds in health care section especially hospitals, enhances the need of analyzing different strategies in economic terms. One of the solutions for the optimal use of financial resources and potentials in hospitals and health care centers is using elements of the marketing mix. In this way we could make the best use of the resources...

Two primary goals of a research field are (i) communicate and preserve knowledge, and (ii) build and maintain a professional community. A range of tools are at its disposal: books, journals, newsletters, lectures, exhibitions, person-to-person communication, magazine and newspaper articles, workshops, and conferences. Each field is marked by a distinct mix and weighting of these venues. To show...