We describe an extension to the Linda model of coordination for Webbased applications. It allows XML documents to be stored in a coordination space from where they can be retrieved based on multiple matching relations amongst XML documents, including those given by XML query-languages. XMLSpaces is distributed and supports several distribution policies in an extensible manner. We describe the p...

The one-electron reduction of a cationic (allenylidene)[cyclic(alkyl) (amino)carbene]gold(i) complex leads to the corresponding neutral, paramagnetic, formally gold(0) complex. DFT calculations reveal that the spin density of this highly robust coinage metal complex is mainly located on the allenylidene fragment, with only 1.8 and 3.1% on the gold center and the CAAC ligand, respectively. In ad...

This communication reports an asymmetric charge transport with a large rectification ratio and finely featured NDR (negative differential resistance) by d-orbitals of a neutral ruthenium(ii) complex with a C(2) axis of symmetry.

Reaction of different combinations of aryl(dihalo)boranes and trialkylsilyl iron metallates, a route previously used to prepare a terminal iron arylborylene complex, is found to lead to three distinct new reaction outcomes, including unselective decomposition, an inert iron(II) (boryl)(silyl) complex, and a dinuclear bis(μ-silylene) complex. The latter result is to our knowledge the first examp...

The first metal complexes of 2,5-di(2-pyridyl)thiazolo[5,4-d]thiazole (5) are described. X-Ray crystal structures are reported for the free ligand 5, a dinuclear copper complex 6 and the two diastereoisomers, 7meso and 7rac, of the dinuclear bis(2,2'-bipyridine)ruthenium complex. The two diastereoisomers of 7 and the 4,4'-dimethyl-2,2'-bipyridine analogue 8 are readily separated by cation excha...

Using video-recordings from a real-world field trial of a museum guide robot, we show how a robot’s gaze influences the visitors’ state of participation in group constellations. Then, we compare the robot’s conduct to a human tour guide’s gaze strategies. We argue that a robot system, to deal with real-world everyday situations, needs to be equipped with knowledge about interactional coordinati...

In a famous experiment by Tversky and Kahneman (1983), featuring Linda the bank teller, the participants assign a higher probability to a conjunction of propositions than to one of the conjuncts, thereby seemingly committing a probabilistic fallacy. In this paper, we discuss a slightly different example featuring someone named Walter, who also happens to work at a bank, and argue that, in this ...

A highly efficient asymmetric Mannich-type reaction between α-tetralone-derived β-keto esters/amides and 1,3,5-triaryl-1,3,5-triazinanes was realized in the presence of chiral N,N'-dioxide-Ni(ii) or Mg(ii) complex. A variety of optically active β-amino compounds with all-carbon quaternary stereocenters were obtained in good yields with excellent enantioselectivities. A possible transition state...

It is widely believed that information and communication technology (ICT) enables organizations to decrease costs and increase capabilities and thus enables to shape interorganizational coordination. This paper describes guidelines with which the impact of ICT on interorganizational coordination structures can be predicted. The framework used consists of three perspectives: interorganizational ...

The magnetic structure of the [Cu4(bpy)4(aspartate)2(H2O)3](ClO4)4.2.5 H2O crystal -- using fractional coordinates determined at room-temperature -- has been analysed in detail. This analysis has been carried out by extending our first principles bottom-up theoretical approach, which was initially designed to study through-space magnetic interactions, to handle through-bond magnetic interaction...