Héctor Flores

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The putrescine content of oat leaf cells and protoplasts increases up to 60-fold within 6 hours of exposure to osmotic stress (0.4 to 0.6 molar sorbitol). Barley, corn, wheat, and wild oat leaves show a similar response. Increased arginine decarboxylase activity parallels the rise in putrescine, whereas ornithine decarboxylase remains unchanged.(More)
Science learning for blind people is limited. For a variety of reasons there is a very low emphasis on science learning for such users, especially those from deprived communities. We have designed, implemented and evaluated the usability of AudioNature, an audio-based interface implemented for pocketPC devices to assist with science learning in users with(More)
Existe una necesidad real de contar con sistemas para que personas con discapacidad visual mejoren las habilidades de movilidad y orientación, es especial para que los niños puedan mejorar su autonomía en el futuro. Sin embargo, estos sistemas deben ser diseñados acorde a los objetivos, metodologías y recursos disponibles, así como también considerando los(More)
There is a real need to have systems for people with visual disabilities to be able to improve their orientation and mobility skills, and especially for children to be able to improve their autonomy into the future. However, these systems must be designed according to available objectives, methodologies and resources, as well as by taking the interests and(More)
Este estudio consistió en diseñar, desarrollar y evaluar ConceptGame, un videojuego para generar aprendizaje a través de la cons-trucción de representaciones conceptuales de una disciplina, utilizando la técnica de los mapas conceptuales. Para entender cómo los aprendices percibían e interactuaban con el videojuego, se realizaron pruebas preliminares de(More)
This study presents the design, implementation, and usability evaluation of AudioNature, an audio-based interface implemented for pocketPC devices to assist science learning in users with visual impairments. The usability evaluation sessions helped to redesign the interface and adjust it to the user's mental model while operating a pocketPC mobile device.(More)
The best way to predict the future is to create it. —Alan Kay Over the past five decades, graduate education at RIT has grown from a few niche programs to a complex array of professional and research-oriented degrees constituting a diverse and unique portfolio of high-quality degrees in the visual arts, humanities, business, and Science, Technology,(More)
EXECUTIVE SUMMARY " The best way to predict the future is to create it. " —Alan Kay Over the past five decades, graduate education at RIT has grown from a few niche programs to a complex array of professional and research-oriented degrees constituting a diverse and unique high quality portfolio in the visual arts, humanities, business, and Science,(More)