In this paper we present a partial ordering semantics for the-calculus. The model we adopt is transition system based. In spite of their inter-leaving nature, we show that it is possible to completely abstract from the generation ordering of transitions. The deenition of this semantics drive us in deening a standard SOS semantics that directly yields the partial ordering semantics of-calculus.

Human behaviors play a leading role in many critical areas including the adoption of information systems, prevention of many diseases, and educational achievement. There has been explosive growth of research in the behavioral sciences during the past decade. Behavioral science researchers are now recognizing that due to this ever expanding volume of research it is impossible to find and incorpo...

To facilitate development of spatial applications, we investigate the problem of modeling topological constraints in part-whole relationships between spatial objects, where the related objects may themselves be composite. An example would be countries that belong to a supranational organization, where the countries are themselves composed of states. Current topological classification schemes ar...

RALF is a small (5 kDa) and ubiquitous plant peptide signal. It was first isolated from tobacco leaf protein extracts owing to its capacity to alkalinize the extracellular media of cell suspensions. RALFs inhibit root growth and hypocotyl elongation, and a role for RALFs in cell expansion has also been proposed. Arabidopsis has 37 RALF isoforms (AtRALF), but only a small group of nine has high ...

This document presents the results of an elaborate human factors study on multimodal interaction in bathroom design Author: Louis Vuurpijl, Louis ten Bosch, Stéphane Rossignol, Andre Neumann, Ralf Engel, Norbert Pfleger Reviewers: Els den Os, Lou Boves, Michael White

'This research was carried out as part of NWO research project 611-304-019. 'Address: Free University, Department of Economics and Econometrics, De Boelelaan 1105, 1081 HV Amsterdam, The Netherlands. E-mail: [email protected].

We discuss the question of Ralf-Dieter Schindler whether for infinite time Turing machines P f = NP f can be true for any function f from the reals into ω1. We show that “almost everywhere” the answer is negative.

Zeitgleich fand das Schießen auf die von Renate und Edgar Nickel gestiftete Jubiläumsscheibe (Goldenen Hochzeit), inclusive vier zugehöriger Preise, auf dem 25m-Stand statt. Jeder Vereinsschütze durfte nach Bezahlung der Einlage einen Schuss mit dem Kleinkalibergewehr, stehend freihändig, abgeben. Erstaunlicherweise erzielte von den 27 angetretenen Schützen ein Mitglied der Bogenabteilung den b...