2,110 research outputs found
The place of space technology in economic development: Reflections on present and future aspects
The effects of the development of satellite applications on the orientation of the space effort were examined. The gap between available and exploited technology, the impact of the current economic climate and future trends are discussed. Europe's low level of public funding for its space effort, in comparison to other space powers, and the dangers of complacency regarding Europe's competitiveness in the space market are illustrated. A proposal for the general direction which Europe's future strategy must take if European independence in this field is to be preserved is presented
Contrasting roles of axonal (pyramidal cell) and dendritic (interneuron) electrical coupling in the generation of neuronal network oscillations
Electrical coupling between pyramidal cell axons, and between interneuron dendrites, have both been described in the hippocampus. What are the functional roles of the two types of coupling? Interneuron gap junctions enhance synchrony of Îł oscillations (25-70 Hz) in isolated interneuron networks and also in networks containing both interneurons and principal cells, as shown in mice with a knockout of the neuronal (primarily interneuronal) connexin36. We have recently shown that pharmacological gap junction blockade abolishes kainate-induced Îł oscillations in connexin36 knockout mice; without such gap junction blockade, Îł oscillations do occur in the knockout mice, albeit at reduced power compared with wild-type mice. As interneuronal dendritic electrical coupling is almost absent in the knockout mice, these pharmacological data indicate a role of axonal electrical coupling in generating the Îł oscillations. We construct a network model of an experimental Îł oscillation, known to be regulated by both types of electrical coupling. In our model, axonal electrical coupling is required for the Îł oscillation to occur at all; interneuron dendritic gap junctions exert a modulatory effect
Infarctus hémorragique de la rate chez le Chien
Lebeau Albert. Infarctus hémorragique de la rate chez le Chien. In: Bulletin de l'Académie Vétérinaire de France tome 108 n°2, 1955. pp. 59-62
Chondrectomie chez le Chien
Lebeau Albert. Chondrectomie chez le Chien. In: Bulletin de l'Académie Vétérinaire de France tome 108 n°5, 1955. pp. 200-202
Mensurations et pesées dans les différentes races de Chiens
Lebeau Albert. Mensurations et pesées dans les différentes races de Chiens. In: Bulletin de l'Académie Vétérinaire de France tome 109 n°7, 1956. pp. 327-341
On Electrostriction of a Granular Superconductor
Zero-temperature field-induced polarization, supercurrent density, and the
related electrostriction (ES) of a granular superconductor are calculated
within a model of 3D Josephson junction arrays. Both the "bulk-modulus-driven
ES" (the change of the sample's volume in the free energy upon the applied
stress) and the "change-of-phase ES" (due to the stress dependence of the
weak-links-induced polarization) are considered. In contrast to
magnetostriction of a granular superconductor, its electroelastic behavior is
predicted to be dominated by the former contribution for all applied fields.Comment: REVTEX (epsf style), 3 EPS figure
Étude expérimentale et clinique de la Cholestérolémie chez le Chien
Lebeau Albert. Étude expérimentale et clinique de la Cholestérolémie chez le Chien. In: Bulletin de l'Académie Vétérinaire de France tome 108 n°6, 1955. pp. 265-274
Un élément complémentaire de diagnostic différentiel de la « Hard Pad Disease » par rapport à la maladie de Carré, grâce à la formule leucocytaire
Lebeau Albert. Un élément complémentaire de diagnostic différentiel de la «Hard Pad Disease» par rapport à la maladie de Carré, grâce à la formule leucocytaire. In: Bulletin de l'Académie Vétérinaire de France tome 106 n°5, 1953. pp. 279-284
Elaboration d’une formule anti-infectieuse destinée aux petits animaux
Lebeau Albert. Élaboration d’une formule anti-infectieuse destinée aux petits animaux. In: Bulletin de l'Académie Vétérinaire de France tome 110 n°3, 1957. pp. 125-132
- …