To test the hypothesis that o-hydroxy amines are proximate agents in chemical carcinogenesis paraffin pellets containing the hydrochlorides of 2-amino-l-fluorenol, 2-amino-3-fluorenol, 2-amino-5-fluorenol, 2-amino-7-fluorenol, 2-fluorenamine, and 1amino-2-naphthol were implanted into the urinary bladders of Swiss female mice. Paraffin pellets alone were implanted as controls. Histological exami...

This paper presents results on using a theory revision system to automatically debug logic programs. Forte is a recently developed system for revising function-free Horn-clause theories. Given a theory and a set of training examples, it performs a hillclimbing search in an attempt to minimally modify the theory to correctly classify all of the examples. Forte makes use of methods from propositi...

Cet article restitue les résultats d’une démarche de recherche transdisciplinaire en Région Bourgogne-Franche-Comté. Il montre comment l’opérateur territorial transition se constitue par le maillage territorial. Ce terme courant l’action située est théorisé, résonance aux concepts établis comme capital social, l’articulation d’échelles, l’essaimage, la préfiguration et ontologies relationnelles...