Le Travail Humain 2003/4 Vol. 66, 2003/4 - pagesPages 305 to 328Conceptualization, Verbal Reports, and Behavioral Adaptation to a Perceptual-Motor TaskBy V. GufoniPages 329 to 346Compensating Small Changes in Luminance During Performance of a Visually-Sustained Attention TaskBy M. J. Blanco, D. SotoPages 347 to 376Diagnosis Error in Emergency Medicine: Application of the "Rational Analysis of Work Situations" ModelBy Laetitia Marquié, Éric Raufaste, C. Marin, Marie EcoiffierPages 377 to 390Analysis of the Different Ways of Handling Knives During Boning Tasks in Various Fields of the Meat Processing IndustryBy Laurent Claudon, C. GuiguetPages 391 to 396Accessibility Improvement for the Disabled in University RestaurantsBy José M. Soriano, J. C. Moltó, J. Mañes