The Semantic Web provides a wealth of open data in RDF format. XML remains a widespread format for data exchange. When combining data of these two formats several problems arise due to representational incompatibilities. The query language XSPARQL, which is built by combining XQuery and SPARQL, addresses some of these problems. However the evaluation of complex XSPARQL queries by a naive implem...

In this article, we survey machine repair problems (MRP) with an emphasis on historical developments of queuing models of practical importance. The survey proceeds historically, starting with developments in 1985, when the first published review on machine interference models appeared. We attempt to elaborate some basic MRP models of the real life congestion situations. The brief survey of some...

Title of Project: Detection of O, N, and NO produced by an atmospheric pressure plasma jet by laser induced fluorescence Name: Elliot A. J. Bartis Institution: University of Maryland Email: [email protected] Advisor: Gottlieb S. Oehrlein Advisor email: [email protected] Institution Visited: The Ohio State University Hosts: Profs. Walter Lempert and Igor Adamovich Host email: [email protected] Date...

Title of Project: Numerical simulation of 2D capacitively-coupled RF plasma for the synthesis of silicon nanocrystals Name: Romain Le Picard and Carlos Larriba Institution: University of Minnesota Email: [email protected], [email protected] Advisor: Steven L. Girshick Advisor email: [email protected] Institution Visited: University of Michigan Host: Mark J. Kushner Host email: [email protected] Dates of...

The authors gauged the return-generating potential of four investment strategies: value weighted, 60/40 fixed mix, and unlevered and levered risk parity. They report three main findings: (1) Even over periods lasting decades, the start and end dates of a backtest can have a material effect on results; (2) transaction costs can reverse ranking, especially if leverage is used; and (3) a statistic...

Introduction: Medical students’ ability to learn clinicalprocedures and competently apply these skills is an essentialcomponent of medical education. Complex skills with limitedopportunity for practice have been shown to degrade withoutcontinued refresher training. To our knowledge there is noevidence that objectively evaluates temporal degradation ofclinical skills in undergraduate medical edu...

We examine the flowering phenology of the cultural iconic Spring Snowflake Leucojum vernum, a considerable tourist attraction, recorded from two sites in western Poland. Flowering dates at the two sites were closely correlated but about 6 days later at the more natural area. The end of flowering was associated with the start of canopy leafing. Early flowering was related to a longer flowering s...