Search

The aim of the present study is to demonstrate the distinctiveness of work engagement and workaholism by examining their relationships with sleep quality and job performance.A total of 447 nurses from 3 hospitals in Japan were surveyed using a self-administrated questionnaire including Utrecht Work Engagement Scale (UWES), the Dutch Workaholism Scale (DUWAS), questions on sleep quality (7 items) regarding (1) difficulty initiating sleep, (2) difficulty maintaining sleep, (3) early morning awakening, (4) dozing off or napping in daytime, (5) excessive daytime sleepiness at work, (6) difficulty awakening in the morning, and (7) tiredness awakening in the morning, and the World Health Organization Health Work Performance Questionnaire.The Structural Equation Modeling showed that, work engagement was positively related to sleep quality and job performance whereas workaholism negatively to sleep quality and job performance.The findings suggest that work engagement and workaholism are conceptually distinctive and that the former is positively and the latter is negatively related to well-being (i.e., good sleep quality and job performance).

cote interne IRCAM: Tardieu10b; None / None; National audience; Sound signals to improve way-finding in a train station

cote interne IRCAM: Tardieu10a; None / None; National audience; Auditory Information In The Soundscapes Of Train Stations : From Perceptual Analysis To Sound Design

cote interne IRCAM: Tardieu09a; None / None; National audience; Previous studies have shown that auditory cues contribute to the identification of several components of a public space such as the volume, but also the type of activity to which the space is dedicated. This paper demonstrates that solutions to improve way-finding in a public place can be based on providing additional auditory information. A methodical approach in three phases is proposed and applied in the case of a train station. First, problems encountered by travellers in a train station are identified by way of an ergonomic study under real conditions with recruited travellers. The results reveal three kinds of problems: orientation errors, lack of confirmation of direction, and lack of information about the remaining distance to be covered. In the second phase, functional and environmental specifications were developed in order to create sound signals for each identified problem. A sound designer proposed several non-speech sound signals based on two schemas: a pair of sounds for the orientation and confirmation functions, and a timeline sequence for the remaining distance. Finally, in the third phase, the sound signals were installed in the train station using an experimental broadcasting system and were evaluated in a second ergonomic study using the same method. The results show that the number of orientation errors decreased and that participants felt more confident during their walk. Sound signals for the orientation and confirmation functions were understood and used by the participants. However, the timeline sequence signalling remaining distance was not understood.

cote interne IRCAM: Kawakami06a; None / None; National audience; There are few information at French railway station. People have to take attention to the visual sign to get the information of train departure time, corridor number, change the train etc. However, some stations of SNCF, which is the national railway company, are very large and have many lines, for instance, TGV, domestic, international line, so that it takes long time to find the right way to corridor. Some people seem to lose their ways while they are moving at the station. Then we thought that it was necessary to make the sound navigation system not to lose the way, and passengers were smoothly guided to their right destinations. Before this experiment, some research had been done to find the problem at the station, and we got the conclusion that people felt difficult to go to another place from main platform. From these researches, we chose one place for the sound installation, which was the passage from main platform to another platform at Montparnasse station in Paris. This reason was that people had to use the long moving walkway for three times, there were some exits on this way, and they could not see the destination because another platform was upper stair. After recording and analyzing the ambient sound of the station, we made some three types of sounds that were Attention, Feedback, and Time-line. Attention and Feedback sounds tell us the right way, and Time-line sound tells us the distance to the destination. 30 subjects selected the sound that went well with the sound navigation system in the laboratory. The highest score sounds were installed at the actual station, and the evaluation experiment was conducted. Consequently, some problems have been improved.

cote interne IRCAM: Tardieu06c; None / None; National audience; En parallèle des travaux sur le confort acoustique des voyageurs en gare, la SNCF souhaite aussi évaluer l’apport du design sonore. L’objectif du travail présenté ici est alors de proposer des solutions de design sonore pour l’amélioration de l’usage d’une gare. Ce travail a été effectué en collaboration étroite avec l’équipe Perception et Design Sonores de l'Ircam dont l'un des objectifs vise à développer des outils méthodologiques adaptés pour analyser un contexte d'usage dans le but de faciliter l'utilisation d'un objet ou le trajet dans un espace grâce à l'apport du sonore. Après une étude préliminaire sur l’ambiance sonore dans les gares, une étude sur l’usage des gares a été effectuée dans l’objectif d’identifier les problèmes rencontrés par les usagers. La méthodologie employée repose sur l’analyse de trajets tests effectués par des voyageurs présélectionnés. Les résultats ont permis d’écrire un cahier des charges pour la création d’une signalétique sonore afin de résoudre les problèmes identifiés. Celle-ci a été créée par un compositeur puis testée et validée expérimentalement dans la gare de Paris Montparnasse.

cote interne IRCAM: Tardieu06b; None / None; National audience; Après avoir longtemps travaillé sur le confort acoustique des voyageurs en gare, la SNCF souhaite désormais évaluer l’apport du design sonore. L’objectif du travail présenté ici est alors de proposer des solutions de design sonore pour l’amélioration de l’usage d’une gare. Ce travail a été effectué en collaboration étroite avec l’équipe Perception et Design Sonores de l'Ircam dont l'un des objectifs vise à développer des outils méthodologiques adaptés pour analyser un contexte d'usage dans le but de faciliter l'utilisation d'un objet ou le trajet dans un espace grâce à l'apport du sonore. Après une étude préliminaire sur l’ambiance sonore dans les gares, une étude sur l’usage des gares a été effectuée dans l’objectif d’identifier les problèmes rencontrés par des usagers. La méthodologie employée repose sur l’analyse de trajets tests effectués par des voyageurs présélectionnés. Les résultats ont permis d’écrire un cahier des charges pour la création d’une signalétique sonore afin de résoudre les problèmes identifiés. La signalétique sonore a été créée par le compositeur et professeur Hiroshi Kawakami qui a notamment, travaillé au Japon sur la signalétique sonore pour l'accueil et l'aide dans les lieux publics aux personnes ayant des déficiences visuelles. Cette signalétique sera testée expérimentalement dans la gare de Paris Montparnasse.