Les systèmes de la bande dessinée. L'expérimentation chez François Ayroles.

in Dejasse, Erwin; Habrand, Tanguy; Meesters, Gert (Eds.) L'Association, une utopie éditoriale et esthétique. (2011)

Systèmes de numération abstraits et combinatoire des mots (habilitation à diriger des recherches)

Post doctoral thesis (2010)

We summary the main properties of abstract numeration systems and their links to combinatorics on words and combinatorial game theory.

Systèmes de positionnement par satellites

Learning material (2011)

Les systèmes électoraux de la Belgique

Book published by Bruylant (2012)

Depuis 1830, la Belgique a connu de nombreuses évolutions en matière électorale. Le XIXe siècle et le début du XXe sont notamment marqués par l’ouverture progressive de la participation de la population ... [more ▼]

Depuis 1830, la Belgique a connu de nombreuses évolutions en matière électorale. Le XIXe siècle et le début du XXe sont notamment marqués par l’ouverture progressive de la participation de la population aux opérations électorales et par leur rationalisation. Au cours des dernières décennies, le système électoral de la Belgique a laissé place à de multiples systèmes électoraux, dans le sillage de la fédéralisation du pays et de la construction européenne. Ainsi, à côté des organes provinciaux et communaux, on ne dénombre pas moins de sept assemblées dont les membres sont directement élus. Même si un certain nombre de règles sont communes à ces différentes institutions, il convient de considérer l’existence d’autant de systèmes électoraux distincts. À ce jour, aucune étude interdisciplinaire n’a fait systématiquement le point sur les systèmes électoraux de la Belgique. Cet ouvrage ambitionne de combler ce vide en réunissant de nombreux spécialistes du droit et de la science politique, mais également de la sociologie, de l’histoire et de la géographie. Une trentaine d’auteurs livrent leurs réflexions sur un thème qui gît au coeur de la vie démocratique d’un pays en pleine mutation. [less ▲]

Systèmes géodésiques et projections "Lambert belge"

Learning material (2012)

Cartographic and geodetic coordinate systems. Local and spatial datums. Successive versions of the Lambert conic conform (LCC) projection used in Belgium

Systèmes linéaires et nombres de Carmichael en cryptographie

Master's dissertation (2000)

Systèmes oxydatifs et antioxydatifs de pousses normales et hyperhydriques de Prunus avium L.: relations avec des capacités oxydo-réductrices et énergétiques

Doctoral thesis (1999)

Systemic and pulmonary hemodynamics assessed with a lumped-parameter heart-arterial interaction model

in Journal of Engineering Mathematics (2003), 47(3-4), 185-199

Arterial pressure and flow result from the interaction between the ( actively) ejecting ventricle and the ( passive) arterial circulation. The main objective was to construct a model, accounting for this ... [more ▼]

Arterial pressure and flow result from the interaction between the ( actively) ejecting ventricle and the ( passive) arterial circulation. The main objective was to construct a model, accounting for this interaction, that is simple enough so that (i) model parameters can be derived from data measured in experimental and/or clinical conditions, and (ii) the model can be applied to support the analysis and interpretation of these data. It is demonstrated how an established conceptual model of ventricular function ( the time-varying elastance) can be coupled to a four-element windkessel model of the arterial system to yield an elegant model of heart-arterial interaction. The coupling leads to a set of three ordinary differential equations. The model allows the study of the effect of changes in cardiac and/or arterial properties on arterial pressure and flow. As an illustration, cardiac and arterial model parameters are derived from measured experimental data in the systemic circulation of a pig and in the pulmonary circulation of a dog. It is evaluated how well measured cardiac and arterial function actually adhere to their assumed theoretical models (time-varying elastance and four-element windkessel model). It is further assessed how well the simple model of heart-arterial interaction describes systemic and pulmonary hemodynamics by comparing simulated and measured experimental data. The limitations and pitfalls of the model, as well as possible applications in the clinical field, are discussed. [less ▲]

Systemic Immune Response after Rectocolonic Administration of Ovalbumin in Mice

in International Archives of Allergy & Immunology (1995), 108(1), 19-23

The aim of our study was to determine the effect of a rectocolonic preimmunization with ovalbumin on the systemic immune response induced by a subsequent subcutaneous injection of this antigen in Balb/c ... [more ▼]

The aim of our study was to determine the effect of a rectocolonic preimmunization with ovalbumin on the systemic immune response induced by a subsequent subcutaneous injection of this antigen in Balb/c mice. One rectocolonic, but not intragastric, administration of 25 mg of ovalbumin induced a detectable increase in serum anti-ovalbumin antibody level. The level reached was however much lower than after subcutaneous injection. Both intragastric and rectocolonic immunization with ovalbumin induced specific systemic cellular tolerance. However, after rectocolonic, but not intragastric, preimmunization there was no systemic humoral tolerance to this antigen. These differences in systemic immune responses after rectocolonic or intragastric administration of ovalbumin could be due to different stimulation of the systemic immune system or to differences between the colonic and small bowel mucosal immune system, which remain to be elucidated. [less ▲]

Systemic inflammatory response to cardiac surgery: does female sex really protect?

in Critical Care: the Official Journal of the Critical Care Forum (2001), 5(6), 280-2

Sex hormones have important interactions with the immune system and modulate the inflammatory response. In this regard, oestrogen inhibits the transcription of proinflammatory cytokines and confers tissue ... [more ▼]

Sex hormones have important interactions with the immune system and modulate the inflammatory response. In this regard, oestrogen inhibits the transcription of proinflammatory cytokines and confers tissue protection in experimental models. On the basis of this evidence, Trotter et al. in this issue of Critical Care addressed the question of whether, in children, female sex would protect against the deleterious effects of cardiac operations with cardiopulmonary bypass by providing a favourable anti-inflammatory cytokine balance. The observations made in that study suggest sex-related immunomodulation and organ protection during cardiac surgery in the paediatric population. Prospective trials conducted in large series, including sex hormone determination in neonates, infants and children with congenital cardiac defects, are necessary to test this hypothesis. The verification of sex-related intraoperative organ protection would provide new opportunities for preventing the uncontrolled systemic inflammatory response that may occur during cardiac surgery. [less ▲]