Search results for "computing"
showing 10 items of 25279 documents
A Multi-Projector Calibration Method for Virtual Reality Simulators with Analytically Defined Screens
2017
The geometric calibration of projectors is a demanding task, particularly for the industry of virtual reality simulators. Different methods have been developed during the last decades to retrieve the intrinsic and extrinsic parameters of projectors, most of them being based on planar homographies and some requiring an extended calibration process. The aim of our research work is to design a fast and user-friendly method to provide multi-projector calibration on analytically defined screens, where a sample is shown for a virtual reality Formula 1 simulator that has a cylindrical screen. The proposed method results from the combination of surveying, photogrammetry and image processing approac…
Constructing co-presence through shared VR gameplay
2021
This study analyzes how participants playing VR games construct co-presence and shared gameplay. The analysis focuses on instances of play where one person is wearing the VR equipment, and other participants are located nearby without the ability to directly interact with the game. We first show how the active player using the VR equipment draws on talk and embodied activity to signal their presence in the shared physical environment, while simultaneously conducting actions in the virtual space, and thus creates spaces for the other participants to take part in gameplay. Second, we describe how other participants draw on the contextual configurations of the moment in displaying co-presen…
Revista electrónica de investigación y evaluación educativa
2016
El Programa para la Evaluación Internacional de Alumnos (PISA) proporciona un marco en el que más de 80 países colaboran para construir métricas globales avanzadas para explorar los conocimientos, habilidades y atributos del estudiantado. El diseño de las evaluaciones plantea importantes desafíos conceptuales y técnicos, como el éxito del aprendizaje. Más allá de una base conceptual sólida, PISA necesita cumplir una serie de exigencias a veces contradictorios. Los/as administradores de escuelas, autoridades normativas y los docentes deben ser capaces de utilizar esta información de la evaluación para determinar cómo crear mejores oportunidades para el aprendizaje de los estudiantes. Las eva…
Algunas consideraciones en torno a la Evaluación del Sistema Educativo y a lo que ésta comporta
1994
In this article we considere the reasons for evaluating the educational system. The quality of education is a preoccupation of the governments, specially in time of crisis and of educational reforms and this quality needs and evaluation of all the educational system. In Spain the National Institute of Quality and Evaluation has been recently created in order to carry out this evaluation. We reflect about the subject and also about the methods and the agents of this evaluation. We ask for a democratic and cooperative evaluation.
Faire face ou faire avec. Situations de vulnérabilité et situations de handicap
2020
Nous sommes tous victime lorsqu’un aléa survient au cours d’un déplacement (grève, panne, situation climatique exceptionnelle, etc.), par définition imprévisible. Mais il peut rendre vulnérables les personnes en situation de handicap cognitif et/ou mental plus particulièrement. La distinction sémantique entre situation de handicap et situation de vulnérabilité doit ici garder tout son sens. Et la tendance à employer indifféremment l’une et l’autre notion en sciences humaines et sociales, mérite d’être dénoncée. Différencier l’une et l’autre notion, c’est admettre et reconnaître les tactiques résilientes que les personnes en situation de handicap mettent en œuvre quotidiennement pour compens…
Teaching and Learning Systems Thinking: What, Why, When, Where, Who, What For, How?
2017
Currently everybody needs to be educated for lifelong time, so we have to be careful what we put in the education programs, and when, in order to create a systems thinking acquired culture and an ethical holistic behaviour.
Influence of the “learning relation” on experimental skills in physics: fluid pressure
2015
International audience
'Beyond the Floats of Cloud': The Variable Geometry of the Frostian Sky
2014
International audience; "
Excessive Daytime Sleepiness in Obstructive Sleep Apnea Patients Treated With Continuous Positive Airway Pressure: Data From the European Sleep Apnea…
2021
Excessive daytime sleepiness (EDS) is a symptom of obstructive sleep apnea (OSA) that resolves under treatment with continuous positive airway pressure (CPAP). In some patients, sleepiness persists despite CPAP treatment. We retrospectively analyzed data on subjective residual EDS, assessed as an Epworth Sleepiness Scale score (ESS) >10, in patients from the European Sleep Apnea Database (n = 4,853, mean age +/- SD 54.8 +/- 11.8 years, 26.1% females), at baseline and at the first visit (median follow-up: 5 months, interquartile range 3-13). An ESS > 10 occurred in 56% of patients at baseline and in 28.2% of patients at follow-up. Residual EDS was analyzed in 2,190 patients (age: 55.1 +/- 12…
Les agglomérations celtiques pré-Conquête en Gaule du Centre-Est. Apport des travaux du PCR « agglomérations antiques de Bourgogne, Franche-Comté et …
2019
Depuis les années 1980, l'étude du fait urbain antique est l'une des questions les plus étudiée sur le territoire des dix départements formant le centre-est de la France. Le développement d'un programme collectif de recherche sur ce thème en 2012 a permis d'en dresser un nouvel inventaire et de rassembler une donnée souvent disparate. Ces travaux ont plus particulièrement porté attention aux phases initiales de mise en place du réseau urbain, en tentant, à l'aide de ces données et de nouvelles prospections, de disposer d'une vision évolutive des sites les plus marquants. Malgré les grandes difficultés méthodologiques et documentaires rencontrées, il apparaît assez nettement que la période a…