Du message au massage commercial

in Toscani al muro. Débat de rue. Les images Benetton, 1990-1994 (1994)

Failure-based Congruences, Unfair Divergences and New Testing Theory

in Vuong, Son; Chanson, Sam (Eds.) Protocol Specification, Testing and Verification, XIV (1994, June)

The testing equivalence 'te' that is used as a reference in verification and testing theory in LOTOS is not a congruence, and no explicit definition of the least congruence stronger than 'te' has been ... [more ▼]

The testing equivalence 'te' that is used as a reference in verification and testing theory in LOTOS is not a congruence, and no explicit definition of the least congruence stronger than 'te' has been found. The critical LOTOS context in which congruence is lost is the hiding context that creates divergence. In this paper we first survey this problem and present three known variants of 'te' that are congruences. Each of them, as well as 'te', is then related to a particular interpretation of divergences in terms of (un)fairness of divergences. The associated preorders that generate these equivalences are also presented. Based on these results, we propose a new testing theory based on unfair divergences. It defines new equivalence and conformance relations, as well as the associated canonical tester. We also prove that the least congruence stronger than this new testing equivalence is one of three presented failure-based congruences, which thus also deserves the label of testing congruence. [less ▲]

Calcitonine en prévention et traitement de l'ostéoporose

in Revue Médicale de Liège (1994), 49(5), 253-9

Development of a model of light reflection for lighting applications

Post doctoral thesis (1994)

Fondements théoriques et classification des essais accélérés d'usure des outils

in Hogge, Michel; Dick, E. (Eds.) Actes du 3ème Congrès National Belge de Mécanique Théorique et Appliquée (1994, May)

This paper discusses about accelerated tool wear tests. Any such test refers the cumulative damage concept, whose validity is discussed. However, some tests make use of stronger hypotheses which are less ... [more ▼]

This paper discusses about accelerated tool wear tests. Any such test refers the cumulative damage concept, whose validity is discussed. However, some tests make use of stronger hypotheses which are less justified. A classification is done from this difference. [less ▲]

Overhead transmission line galloping. A comparative study between 2-DOF and 3-DOF models.

in Hogge, Michel; dick, E. (Eds.) Actes du 3ème CNBM (1994, May)

2-D and 3-D models of power line galloping are detailed for multi-span power lines, including suspension insulator movement, tension changes and aerodynamic lift, drag and pitching moment.

Diagnostic de la varicelle-zona et de l’herpès: l’apport du laboratoire

in Virologics (1994, April)

Modélisation des discontinuités en écoulement instationnaire à surface libre. Du ruissellement hydrologique en fine lame à la propagation d'ondes consécutives aux ruptures oe barrages

Doctoral thesis (1994)

Crime Prevention in Belgium: Towards "integrated prevention"

in International Criminal Police Review (1994), (447), 7-15

Tragic events can provide the opportunity for an overall rethink of crime prevention. Recent history in belgium has led to crime prevention being recentred at local level for that is where it can be ... [more ▼]

Tragic events can provide the opportunity for an overall rethink of crime prevention. Recent history in belgium has led to crime prevention being recentred at local level for that is where it can be deployed most effectively. [less ▲]

Binding Site-Shaped Repeated Sequences of Bacterial Wall Peptidoglycan Hydrolases

in FEBS Letters (1994), 342(1), 23-28

The non-catalytic C-terminal regions of the N-acetylmuramidase (lysozyme) of Clostridium acetobutylicum and N-acetylmuramoyl(D-lactyl)-L-alanine amidases CwlA of Bacillus subtilis, ORFL3 and CwlL of ... [more ▼]

The non-catalytic C-terminal regions of the N-acetylmuramidase (lysozyme) of Clostridium acetobutylicum and N-acetylmuramoyl(D-lactyl)-L-alanine amidases CwlA of Bacillus subtilis, ORFL3 and CwlL of Bacillus licheniformis were previously reported to have similarities with the amino acid sequence of the non-catalytic N-terminal module of the Streptomyces albus G Zn DD-peptidase. This peptidase is a bipartite protein of known three-dimensional structure. Its non-catalytic N-terminal module possesses, exposed at the surface, an elongated crevice which is defined by a loop-helix-loop-helix motif that consists of two repeats, each 16 amino acid residues long, connected by a heptapeptide and whose design is compatible with its possible functioning as a substrate recognition and binding site. Amino acid alignments suggest that cavities nearly identical in shape to that present in the non-catalytic module of the S. albus peptidase, are borne by the C-terminal regions of the CwlA amidase (in one copy), the lysozyme and the ORFL3 and CwlL amidases (in two copies). Since a common feature of the five enzymes is their substrate, the bacterial cell wall peptidoglycan, we interpret the striking similarity of their non-catalytic N- or C-terminal modules to suggest that these modules are involved in the binding of these exocellular enzymes to their insoluble wall substrate. [less ▲]