Pág. 14: Un grupo de estudiantes diseña un proyecto sobre el sistema sanitario
«Lo más peligroso serían los efectos tardíos de la radiación en Fukushima»
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Pág. 77: ‘Schultze gets the blues’ / ‘Rapsodia nº 2. La vida es sueño’
Descarga por URL: http://canal.ugr.es/medios-impresos/item/download/39991
Researchers at the University of Granada have developed this tool and proved it with a number of groups consisting on people operated on cataract or submitted to refractive eye surgery, as well as on normal observers and patients with different eye pathologies. The Free-Software Bureau of the University of Granada launched this program, that can be downloaded from the Internet.
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Pág. 6 y 7: La UGR genera al año casi 35 toneladas de residuos peligrosos
Los restos de los animales de laboratorio, aparte
El Cementerio de El Cabril, destino de los desechos radioactivos
Pág. 13: Máster Diagnóstica inicia las obras de su centro I+D del PTS
Pág. 21: ‘Rapsodia nº 2. La vida es sueño’ en Filosofía y Letras
Deportes – Pág. 14: La Universidad de Granada derrota a Sevilla en la final
Descarga por URL: http://canal.ugr.es/medios-impresos/item/download/39988
Researchers from the Department of Optics of the University of Granada, belonging to the Laboratorio de Ciencias de la Visión y Aplicaciones, have developed a programme for testing alterations in night vision, and the tool required to implement it, which has been named «halometer».
This instrument consists on a software named Software Halo v1.0, and a computer where the mouse is used as a response button, and a chin cup with a forehead holder to fix the observer’s position. Software Halo v1.0 was initially presented as freeware available on LabVisGra’s website at http://www.ugr.es/local/labvisgr and at the University of Granada’s institutional repository at http://digibug.ugr.es/handle/10481/5478. Nevertheless, it was recently released by the Free-Software Bureau of the University of Granada so, it has become a scientific freeware application.
This software was developed by a group coordinated by Rosario González Anera, receiving technical support of the Granadian company Seven Solutions and of an ophthalmological clinic set in Madrid and named Novovision. The research group was integrated by researchers José Juan Castro, Carolina Ortiz and Aixa Alarcón, and receives fundings from the regional government of Economy, Innovation and Science of the Junta de Andalucía.
Low-Light Conditions
Before the test, researchers fix the observer’s position with a chin cup and a forehead holder at an adequate distance from the monitor where the test will be displayed and considering the angular diameter that light stimuli must have. The test is performed under low-light conditions (in a dark room) and, before the test, patients are given some minutes to adapt to darkness.
This test involves showing a bright light stimulus to the subject against a dark background and, progessively showing different peripheral light stimuli with lower brightness around the central (Figure 2), at random, in different positions and at different distances. Subjects’ task is to press the buttom of a mouse every time they detect a peripheral stimulus. Once the test ends, the software makes an estimation of a parameter named «Visual Disturbance Index» that, together with the results graphic, determines the type and intensity of visual disturbance.
This index scores from 0 to 1, so the higher is this index, the stronger is the influence of the halo or any other visual disturbance perceived by the observer. Therefore, the lower is the subject’s ability to detect the peripheral stimuli displayed around the main stimulus that causes such disturbances.
One of the advantages of the halometer developed at the University of Granada is that it allows to configure such test parameters as:
Special parameters: the radius of the central stimulus and the peripheral stimuli can be modified. Furthermore, the number of semi-major axes where the peripheral stimuli will be displayed can be fixed, as well as the maximum radius maximum distance between these stimuli-, and the number of stimuli per semi-major axe.
Temporary Parameters: the software allows to set some exposure time for adaptation to darkness and to the brightness of the central stimulus. Furthermore, others parameters as the exposure time to the stimulus and the time elapsed between a stimulus and the next one can also be set.
The software also allows to set the color and brightness of central and peripheral stimuli, and the weight and number of times each peripheral stimulus is shown.
This test has been tried with different observer groups consisting of people operated on cataract or submitted to refractary eye surgery, with normal observers and patients with different eye pathologies as AMD (Age-related Macular Degeneration) and unilateral keratitis. The results obtained showed that, in the case of patients with keratitis, the visual disturbance index for the healthy eye was found to be lower than that for the unhealthy eye, and even lower under binocular vision conditions. However, visual disturbance indexes proved to be higher in the case of patients operated on cataracts, showing a higher influence of halos and, therefore, lower detection capacity. Patients operated with LASIK refractory eye surgery also presented high vision disturbance indexes in comparison to normal observers.
The results obtained with this halometer and the new software have been presented in different national and internacional conferences as the IX Reunión Nacional de Óptica, Galice and the Wavefront Confress 2009. furthermore, a research article has been published in the international journal Applied Optics describing the results obtained with patients operated with refractory eye surgery. It has also been recently admitted for publication in the prestigious scientific journal Journal of Biomedical Optics, where the results obtained with patients with different eye pathologies are described.
Researchers at the University of Granada have developed this tool and proved it with a number of groups consisting on people operated on cataract or submitted to refractive eye surgery, as well as on normal observers and patients with different eye pathologies. The Free-Software Bureau of the University of Granada launched this program, that can be downloaded from the Internet.
Researchers from the Department of Optics of the University of Granada, belonging to the Laboratorio de Ciencias de la Visión y Aplicaciones, have developed a programme for testing alterations in night vision, and the tool required to implement it, which has been named «halometer».
This instrument consists on a software named Software Halo v1.0, and a computer where the mouse is used as a response button, and a chin cup with a forehead holder to fix the observer’s position. Software Halo v1.0 was initially presented as freeware available on LabVisGra’s website at http://www.ugr.es/local/labvisgr and at the University of Granada’s institutional repository at http://digibug.ugr.es/handle/10481/5478. Nevertheless, it was recently released by the Free-Software Bureau of the University of Granada so, it has become a scientific freeware application.
This software was developed by a group coordinated by Rosario González Anera, receiving technical support of the Granadian company Seven Solutions and of an ophthalmological clinic set in Madrid and named Novovision. The research group was integrated by researchers José Juan Castro, Carolina Ortiz and Aixa Alarcón, and receives fundings from the regional government of Economy, Innovation and Science of the Junta de Andalucía.
Low-Light Conditions
Before the test, researchers fix the observer’s position with a chin cup and a forehead holder at an adequate distance from the monitor where the test will be displayed and considering the angular diameter that light stimuli must have. The test is performed under low-light conditions (in a dark room) and, before the test, patients are given some minutes to adapt to darkness.
This test involves showing a bright light stimulus to the subject against a dark background and, progessively showing different peripheral light stimuli –with lower brightness around the central (Figure 2), at random, in different positions and at different distances. Subjects’ task is to press the buttom of a mouse every time they detect a peripheral stimulus. Once the test ends, the software makes an estimation of a parameter named «Visual Disturbance Index» that, together with the results graphic, determines the type and intensity of visual disturbance.
This index scores from 0 to 1, so the higher is this index, the stronger is the influence of the halo or any other visual disturbance perceived by the observer. Therefore, the lower is the subject’s ability to detect the peripheral stimuli displayed around the main stimulus that causes such disturbances.
One of the advantages of the halometer developed at the University of Granada is that it allows to configure such test parameters as:
* Special parameters: the radius of the central stimulus and the peripheral stimuli can be modified. Furthermore, the number of semi-major axes where the peripheral stimuli will be displayed can be fixed, as well as the maximum radius –maximum distance between these stimuli-, and the number of stimuli per semi-major axe.
* Temporary Parameters: the software allows to set some exposure time for adaptation to darkness and to the brightness of the central stimulus. Furthermore, others parameters as the exposure time to the stimulus and the time elapsed between a stimulus and the next one can also be set.
* The software also allows to set the color and brightness of central and peripheral stimuli, and the weight and number of times each peripheral stimulus is shown.
This test has been tried with different observer groups consisting of people operated on cataract or submitted to refractary eye surgery, with normal observers and patients with different eye pathologies as AMD (Age-related Macular Degeneration) and unilateral keratitis. The results obtained showed that, in the case of patients with keratitis, the visual disturbance index for the healthy eye was found to be lower than that for the unhealthy eye, and even lower under binocular vision conditions. However, visual disturbance indexes proved to be higher in the case of patients operated on cataracts, showing a higher influence of halos and, therefore, lower detection capacity. Patients operated with LASIK refractory eye surgery also presented high vision disturbance indexes in comparison to normal observers.
The results obtained with this halometer and the new software have been presented in different national and internacional conferences as the IX Reunión Nacional de Óptica, Galice and the Wavefront Confress 2009. furthermore, a research article has been published in the international journal Applied Optics describing the results obtained with patients operated with refractory eye surgery. It has also been recently admitted for publication in the prestigious scientific journal Journal of Biomedical Optics, where the results obtained with patients with different eye pathologies are described.
Researchers from the Department of Optics of the University of Granada, belonging to the Laboratorio de Ciencias de la Visión y Aplicaciones, have developed a programme for testing alterations in night vision, and the tool required to implement it, which has been named «halometer».
This instrument consists on a software named Software Halo v1.0, and a computer where the mouse is used as a response button, and a chin cup with a forehead holder to fix the observer’s position. Software Halo v1.0 was initially presented as freeware available on LabVisGra’s website at http://www.ugr.es/local/labvisgr and at the University of Granada’s institutional repository at http://digibug.ugr.es/handle/10481/5478. Nevertheless, it was recently released by the Free-Software Bureau of the University of Granada so, it has become a scientific freeware application.
This software was developed by a group coordinated by Rosario González Anera, receiving technical support of the Granadian company Seven Solutions and of an ophthalmological clinic set in Madrid and named Novovision. The research group was integrated by researchers José Juan Castro, Carolina Ortiz and Aixa Alarcón, and receives fundings from the regional government of Economy, Innovation and Science of the Junta de Andalucía.
Low-Light Conditions
Before the test, researchers fix the observer’s position with a chin cup and a forehead holder at an adequate distance from the monitor where the test will be displayed and considering the angular diameter that light stimuli must have. The test is performed under low-light conditions (in a dark room) and, before the test, patients are given some minutes to adapt to darkness.
This test involves showing a bright light stimulus to the subject against a dark background and, progessively showing different peripheral light stimuli –with lower brightness around the central (Figure 2), at random, in different positions and at different distances. Subjects’ task is to press the buttom of a mouse every time they detect a peripheral stimulus. Once the test ends, the software makes an estimation of a parameter named «Visual Disturbance Index» that, together with the results graphic, determines the type and intensity of visual disturbance.
This index scores from 0 to 1, so the higher is this index, the stronger is the influence of the halo or any other visual disturbance perceived by the observer. Therefore, the lower is the subject’s ability to detect the peripheral stimuli displayed around the main stimulus that causes such disturbances.
One of the advantages of the halometer developed at the University of Granada is that it allows to configure such test parameters as:
Special parameters: the radius of the central stimulus and the peripheral stimuli can be modified. Furthermore, the number of semi-major axes where the peripheral stimuli will be displayed can be fixed, as well as the maximum radius –maximum distance between these stimuli-, and the number of stimuli per semi-major axe.
Temporary Parameters: the software allows to set some exposure time for adaptation to darkness and to the brightness of the central stimulus. Furthermore, others parameters as the exposure time to the stimulus and the time elapsed between a stimulus and the next one can also be set.
The software also allows to set the color and brightness of central and peripheral stimuli, and the weight and number of times each peripheral stimulus is shown.
This test has been tried with different observer groups consisting of people operated on cataract or submitted to refractary eye surgery, with normal observers and patients with different eye pathologies as AMD (Age-related Macular Degeneration) and unilateral keratitis. The results obtained showed that, in the case of patients with keratitis, the visual disturbance index for the healthy eye was found to be lower than that for the unhealthy eye, and even lower under binocular vision conditions. However, visual disturbance indexes proved to be higher in the case of patients operated on cataracts, showing a higher influence of halos and, therefore, lower detection capacity. Patients operated with LASIK refractory eye surgery also presented high vision disturbance indexes in comparison to normal observers.
The results obtained with this halometer and the new software have been presented in different national and internacional conferences as the IX Reunión Nacional de Óptica, Galice and the Wavefront Confress 2009. furthermore, a research article has been published in the international journal Applied Optics describing the results obtained with patients operated with refractory eye surgery. It has also been recently admitted for publication in the prestigious scientific journal Journal of Biomedical Optics, where the results obtained with patients with different eye pathologies are described.
El escritor Ángel Talián participa, el sábado, 26 de marzo de 2011, a las 12 horas, en los “Encuentros en la Biblioteca” que organiza la Cátedra “Federico García Lorca”, del Secretariado de Extensión Universitaria de la UGR, con la colaboración de la Biblioteca de Andalucía y Biblioteca Provincial de Granada.
El acto tendrá lugar en la Biblioteca de Andalucía (Profesor Sáinz Cantero, 6).
Poeta y estudiante de Filología Hispánica, Ángel Talián cree profundamente en la fuerza que adquieren los versos al ser declamados. Quizá por eso, con el título de ‘Poemas de ahora o nunca’, Ángel Talián ofrece recitales en los que entremezcla poemas de creación propia con otros de autores conocidos, con la idea de “dar un espectáculo de entretenimiento que mueva al público y le haga reflexionar”.
Finalista de los Arte Joven de la Latina y de las Justas de Martos, forma parte del consejo de redacción de la revista literaria ‘Letra Clara’ y siente pasión por la traducción de poetas ingleses y americanos.
Actividad:
Contacto: Profesor Antonio Carvajal, director de la Cátedra “Federico García Lorca”. Universidad de Granada. Tlf. 958243484 y 958 243593. Correo e.: acmilena@ugr.es
El profesor, poeta y ensayista extremeño, Antonio Méndez Rubio, interviene el lunes, 28 de marzo de 2011, a las 19.30 horas, en el ciclo “Presencias literarias de la Universidad”, que organiza la Cátedra “Federico García Lorca” y dirige el poeta y profesor Antonio Carvajal, en colaboración con la Dirección General del Libro, Archivos y Bibliotecas, del Ministerio de Cultura.
El acto tendrá lugar en la Sala de Grados de la Facultad de Traducción e Interpretación (Buensuceso, 11).
Actividad
Facultad de Traducción e Interpretación
Contacto: Profesor Antonio Carvajal, director de la Cátedra “Federico García Lorca”. Universidad de Granada. Tlf. 958243484 y 958 243593. Correo e.: acmilena@ugr.es
Científicos de la Universidad de Granada han diseñado un sistema que permite convertir las aguas residuales procedentes de la agricultura en bioplásticos, a través del uso de bacterias fijadoras de nitrógeno que almacenan los biopolímeros. Los investigadores han logrado obtener plásticos de propiedades análogas a los polímeros termoplásticos procedente del petróleo, a partir de una biotecnología fermentativa aplicada a aguas residuales procedentes de la obtención del aceite de oliva (alpeorujo).
Teniendo en cuenta el encarecimiento del precio del petróleo, esta técnica puede tener un enorme impacto económico, según sus creadores. Además, permite dar una solución al tratamiento de un residuo que en nuestro país genera un volumen de 5 millones de metros cúbicos anuales, y se concentra solo en un periodo limitado del año (la campaña olivarera en los meses de noviembre y diciembre).
El alpeorujo genera importantes efectos medioambientales, sobre todo en la alteración de la fertilidad del suelo y la liberación de compuestos tóxicos a la atmósfera.
Las bacterias fijadoras de nitrógeno de vida libre de la familia de las Pseudomonadaceae (Azotobacter sp) son capaces de almacenar, por vía intracelular, biopolímeros (polihidroxialcanoátos) de propiedades plásticas análogas a las de algunos polímeros termoplásticos procedentes del petróleo. Los científicos de la UGR han aprovechado este metabolismo para conseguir una viable y optimizada producción de biopolímeros a través de la valorización de agua residual agrícola de gran impacto medioambiental (debido a su carga órganica y fitotoxicidad) en algunas áreas de Andalucía, como es el alpeorujo.
Proceso completo
Desde ensayos de laboratorio y a través de un proceso de escalado hasta la planta piloto, los investigadores de la Universidad de Granada han intentado optimizar la producción de bioplástico con una investigación aplicativa de carácter colaborativo con otros centros de investigación europeos, Instituto Ingeniería Química de la University of Patras-Grecia y Labor (Laboratorio di Investigación Industrial)- Roma-Italia.
Este trabajo ha demostrado que, con un tratamiento anáerobico preliminar de diluiciones de alpeorujo, el sustrato venía facilmente metabolizado por parte de un inóculo selectivo de Azotobacter sp que, en condiciones aeróbicas, está en grado de almacenar una cantidad optimizada de biopolímeros de propiedades plásticas. Además de la producción de este bioplástico, este bioproceso diseñado en la UGR permite el tratamiento y la reducción del poder eco-toxicológico de manera notable (de más del 30%).
La investigación ha corrido a cargo de Federico Cerrone, del Instituto del Agua de la Universidad de Granada. Parte de estos resultados han sido publicados en las revistas Starch/Starke y Journal of Microbiology and biotechnology.
CONTACTO: Federico Cerrone. Instituto del Agua de la Universidad de Granada. Telefono: 958248019. Correo electrónico: fcerrone@ugr.es
Mañana, viernes, día 25 de marzo de 2011, a las 9,30 horas en primera convocatoria y a las 10 horas en segunda, tendrá lugar, en el Aula Magna de la Facultad de Filosofía y Letras, la sesión ordinaria del Claustro Universitario, con el siguiente orden del día:
Cine, comunicaciones y ponencias constituyen las jornadas que sobre Salud en el Cine se celebrarán en Melilla los días 25 y 26 de marzo de 2011, organizadas por la Facultad de Enfermería de Melilla, de la UGR.
Estas actividades, que forman parte de un proyecto de innovación docente coordinado por la profesora Bibinha Benbunan Bentata, tienen un valor académico de 2,5 créditos de libre configuración en la Facultad de Enfermería de Melilla.
Programa
1ª Sesión: Vienes, 25/3/11. 10 -14 horas
2ª- Sesión: Viernes, 25/3/11. 17-21 horas
3ª Sesión. Sábado, 26/3/11. 10 -14 horas
4ª Sesión. Sábado, 26/3/11. 17-21 horas
Al finalizar cada sesión, los participantes deberán responder a un cuestionario sobre la temática tratada y entregar una memoria con las conclusiones y valoración personal.
Más información y matrícula, en la Secretaría de la Facultad de Enfermería de Melilla. Correo electrónico: euenfermeramelilla@ugr.es
Contacto: Profesora Bibinha Benbunan Bentata. Decana de la Facultad de Enfermería del Campus de Melilla. Universidad de Granada. Tfn: 952698822. Correo electrónico: bbenbunan@ugr.es – http://www.ugr.es/~euenfermeriamelilla/index.html
