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4. List of Contributors

Author

Abenavoli, L., primary, Abraldes, J.G., additional, Aguilar-Olivos, N.E., additional, Aguirre-García, J., additional, Almeda-Valdés, P., additional, Arauz, J., additional, Aravalli, R.N., additional, Arellanes-Robledo, J., additional, Ascensão, A., additional, Bardia, A., additional, Beleza, J., additional, Billiar, T.R., additional, Buendía-Montaño, L.D., additional, Camacho, J., additional, Casas-Grajales, S., additional, Casillas-Ramírez, A., additional, Castañeda-Hernández, G., additional, Cederbaum, A.I., additional, Chagoya de Sánchez, V., additional, Chávez, E., additional, Colle, I., additional, Cruz-Antonio, L., additional, Cruz-Baquero, A., additional, Czaja, A.J., additional, Dara, L., additional, del Pilar Cabrales-Romero, M., additional, Dhayal, M., additional, Espinosa-Cantellano, M., additional, Factor, V.M., additional, Ferenci, P., additional, Fernández-Martínez, E., additional, Fernandez, M., additional, Fierro, N.A., additional, Flores-Beltrán, R.E., additional, French, S.W., additional, Fu, P., additional, Fukui, H., additional, Galicia-Moreno, M., additional, Galli, A., additional, García-López, P., additional, Garcia-Tsao, G., additional, García de León, M.C., additional, Ginès, P., additional, Girish, C., additional, Gómez-Quiroz, L.E., additional, Gonçalves, I.O., additional, Gonzalez-Aldaco, K., additional, Gracia-Sancho, J., additional, Grattagliano, I., additional, Graupera, I., additional, Gressner, O.A., additional, Gressner, A.M., additional, Groszmann, R.J., additional, Guízar-Sahagún, G., additional, Gutiérrez-Reyes, D.G., additional, Gutiérrez-Ruiz, M.C., additional, Habeeb, M.A., additional, Hai, H., additional, Hammerich, L., additional, Hernández-Aquino, E., additional, Hernández, C., additional, Jaeschke, H., additional, Jiménez-Castro, M.B., additional, Kaplowitz, N., additional, Katoonizadeh, A., additional, Kawada, N., additional, Kershenobich, D., additional, Khan, A.A., additional, Ki, S.H., additional, Kim, K.M., additional, Lakshman, M.R., additional, Li, W., additional, Liang, X., additional, Liu, X., additional, Liu, Z.-X., additional, Loughran, P.A., additional, Lu, S.C., additional, Maeda, S., additional, Magalhães, J., additional, Mann, J., additional, Marquardt, J.U., additional, Martínez-Castillo, M., additional, Martínez-Chantar, M.L., additional, Martínez-Padrón, H.Y., additional, Martínez-Palomo, A., additional, Martins, M.J., additional, Mato, J.M., additional, Méndez-Sánchez, N., additional, Milic, N., additional, Montes-Páez, G., additional, Montes, S., additional, Muriel, P., additional, Nakamura, T., additional, Noureddin, M., additional, Oliveira, P.J., additional, Pacheco-Rivera, R., additional, Pacheco-Yépez, J., additional, Panduro, A., additional, Peralta, C., additional, Pérez-Carreón, J.I., additional, Portincasa, P., additional, Pradhan, S.C., additional, Raevens, S., additional, Ramachandran, A., additional, Ramos-Tovar, E., additional, Reyes-Gordillo, K., additional, Rivera-Mancía, S., additional, Roberts, M.S., additional, Rocha-Sánchez, A.Y., additional, Roman, S., additional, Serrano-Luna, J., additional, Shah, R., additional, Shibata, W., additional, Shibayama, M., additional, Shimizu, Y., additional, Shiota, G., additional, Solà, E., additional, Tacke, F., additional, Tajiri, K., additional, Takaki, A., additional, Tarocchi, M., additional, Thorgeirsson, S.S., additional, Thuy, T.T.V., additional, Thuy le, T.T., additional, Torimura, T., additional, Tristán-López, L.A., additional, Tsutsumi, V., additional, Tsutsumi, G.R., additional, Uchida, D., additional, Ueno, T., additional, Uribe, M., additional, Vargas-Pozada, E.E., additional, Vázquez-Flores, L.F., additional, Velasco-Loyden, G., additional, Vergani, L., additional, Vishwakarma, S.K., additional, Vorobioff, J.D., additional, Wang, J.-Y., additional, Wang, H., additional, Wu, S.-D., additional, Xia, F., additional, Xu, W., additional, Xu, L., additional, Yamamoto, K., additional, Yao, X.R., additional, Yu, J., additional, Zeng, L., additional, and Zhou, B.J., additional

Published
2017
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7. Intraocular inflammation as the main manifestation of Rickettsia conorii infection

Author

Orduña A, Martínez-Osorio H, Fuentes-Páez G, Torres J, Agahan ALD, and Calonge M

Subjects
Ophthalmology, RE1-994
Abstract

Archimedes LD Agahan1,3, Jenice Torres1, Graciana Fuentes-Páez1, Hernan Martínez-Osorio1, Antonio Orduña2, Margarita Calonge11Ocular Immunology and Uveitis Unit, Institute of Applied Ophthalmobiology (IOBA), 2Microbiology Department, University of Valladolid, Valladolid, Spain; 3Department of Ophthalmology and Visual Sciences, University of the Philippines, Philippine General Hospital, Manila, PhilippinesObjective: To report the clinical features and management of seven cases of intraocular inflammation caused by Rickettsia infection and review published literature.Methods: Rickettsia conorii or Rickettsia spp. infection was diagnosed based on the following criteria: (1) positive serology according to the European Guidelines, (2) titer normalization after specific treatment, and (3) complete resolution of ophthalmic disease and accompanying symptoms after antibiotic therapy.Results: Seven patients were referred for uveitis of unknown etiology. All came from regions where Mediterranean spotted fever is prevalent. One patient met the European guidelines criteria for Rickettsia spp. infection, while the other six cases met the criteria for R. conorii infection. The main symptoms were visual loss, floaters, eye redness, photophobia, and ocular pain. Predominant ophthalmic signs included vasculitis, choroiditis, vitritis, and macular edema. All patients required antibiotic treatment that resulted in the remission of the infection. Doxycycline was the first choice and the only antibiotic used to treat four patients. One patient needed ciprofloxacin as a second antibiotic after not responding to doxycycline. Two patients had doxycycline as a second antibiotic after not responding primarily to sulfonamides (which had been given after 2–3 days of doxycycline gastric intolerance); one of these patients needed ciprofloxacin as a third antibiotic.Conclusion: Intraocular inflammation can occur as the main manifestation of Rickettsia conorii or Rickettsia spp. infection. It should be considered as a differential diagnosis for uveitis especially for patients living in countries where this infection is endemic in the world. Antibiotic treatment remains effective in the management of Rickettsia infection.Keywords: intraocular inflammation, Mediterranean spotted fever, Rickettsia conorii, uveitis

Published
2011

16. TARSIS, the 8 arcmin2IFU for the Calar Alto 3.5m telescope

Author

Bryant, Julia J., Motohara, Kentaro, Vernet, Joël R. D., Gil de Paz, A., Iglesias-Páramo, J., Carrasco, E., Gallego, J., García Vargas, M. L., Hernández, L., Martín Garzón, G. E., Oñorbe, J., Piqueras López, J., Vílchez, J. M., Sánchez-Blázquez, P., Kehrig, C., Montaña, A., Montenegro Montes, F. M., Pérez-Calpena, A., Tulloch, S., Abril, M., Pascual, S., Cardiel, N., Castillo-Morales, Á., Jiménez-Teja, Y., González Ruíz, V., Pérez Medialdea, D., Calvo-Ortega, R., and Páez, G.

Published
2024
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19. MEGARA, the R=6000-20000 IFU and MOS of GTC

Author

Carrasco, E., Gil de Paz, A., Gallego, J., Iglesias-Páramo, J., Cedazo, R., García Vargas, M. L., Arrillaga, X., Avilés, J. L., Bouquin, A., Carbajo, J., Cardiel, Nicolás, Carrera, M. A., Castillo Morales, A., Castillo-Domínguez, E., Esteban San Román, S., Ferrusca, D., Gómez-Álvarez, P., Izazaga-Pérez, R., Lefort, B., López Orozco, J. A., Maldonado, M., Martínez Delgado, Ismael, Morales Durán, I., Mújica, E., Ortiz, R., Páez, G., Pascual, S., Pérez-Calpena, A., Picazo, P., Sánchez-Penim, A., Sánchez-Blanco, E., Tulloch, S., Velázquez, M., Vílchez Medina, José Manuel, Zamorano, J., Aguerri, A. L., Barrado y Navascués, David, Bertone, E., Cava, A., Catalán-Torrecilla, C., Cenarro, J., Chávez, M., Dullo, B. T., Eliche, C., García, Miriam, García-Rojas, J., Guichard, J., González-Delgado, R., Guzmán, R., Herrero, A., Huélamo, Nuria, Hughes, D. H., Jiménez-Vicente, J., Kehrig, C., Marino, R.A., Márquez, Isabel, Masegosa, Josefa, Mayya, D., Méndez-Abreu, J., Mollá, M., Muñoz-Tuñón, C., Peimbert, M., Pérez-González, Pablo G., Pérez Montero, Enrique, Roca-Fàbrega, S., Rodríguez, M., Rodríguez-Espinosa, J. M., Rodríguez-Merino, L., Rodríguez-Muñoz, L., González Delgado, Rosa M., Sánchez-Almeida, J., Sánchez Contreras, C., Sánchez-Blázquez, P., Sánchez, Sebastián F., Sarajedini, A., Silich, S., Simón-Díaz, S., Tenorio-Tagle, G., Terlevich, E., Terlevich, R., Torres-Peimbert, S., Trujillo, I., Tsamis, Y., Vega, O., Carrasco, E., Gil de Paz, A., Gallego, J., Iglesias-Páramo, J., Cedazo, R., García Vargas, M. L., Arrillaga, X., Avilés, J. L., Bouquin, A., Carbajo, J., Cardiel, Nicolás, Carrera, M. A., Castillo Morales, A., Castillo-Domínguez, E., Esteban San Román, S., Ferrusca, D., Gómez-Álvarez, P., Izazaga-Pérez, R., Lefort, B., López Orozco, J. A., Maldonado, M., Martínez Delgado, Ismael, Morales Durán, I., Mújica, E., Ortiz, R., Páez, G., Pascual, S., Pérez-Calpena, A., Picazo, P., Sánchez-Penim, A., Sánchez-Blanco, E., Tulloch, S., Velázquez, M., Vílchez Medina, José Manuel, Zamorano, J., Aguerri, A. L., Barrado y Navascués, David, Bertone, E., Cava, A., Catalán-Torrecilla, C., Cenarro, J., Chávez, M., Dullo, B. T., Eliche, C., García, Miriam, García-Rojas, J., Guichard, J., González-Delgado, R., Guzmán, R., Herrero, A., Huélamo, Nuria, Hughes, D. H., Jiménez-Vicente, J., Kehrig, C., Marino, R.A., Márquez, Isabel, Masegosa, Josefa, Mayya, D., Méndez-Abreu, J., Mollá, M., Muñoz-Tuñón, C., Peimbert, M., Pérez-González, Pablo G., Pérez Montero, Enrique, Roca-Fàbrega, S., Rodríguez, M., Rodríguez-Espinosa, J. M., Rodríguez-Merino, L., Rodríguez-Muñoz, L., González Delgado, Rosa M., Sánchez-Almeida, J., Sánchez Contreras, C., Sánchez-Blázquez, P., Sánchez, Sebastián F., Sarajedini, A., Silich, S., Simón-Díaz, S., Tenorio-Tagle, G., Terlevich, E., Terlevich, R., Torres-Peimbert, S., Trujillo, I., Tsamis, Y., and Vega, O.

Abstract

MEGARA is the new generation IFU and MOS optical spectrograph built for the 10.4m Gran Telescopio CANARIAS (GTC). The project was developed by a consortium led by UCM (Spain) that also includes INAOE (Mexico), IAA-CSIC (Spain) and UPM (Spain). The instrument arrived to GTC on March 28th 2017 and was successfully integrated and commissioned at the telescope from May to August 2017. During the on-sky commissioning we demonstrated that MEGARA is a powerful and robust instrument that provides on-sky intermediate-to-high spectral resolutions RFWHM ~ 6,000, 12,000 and 20,000 at an unprecedented efficiency for these resolving powers in both its IFU and MOS modes. The IFU covers 12.5 x 11.3 arcsec 2 while the MOS mode allows observing up to 92 objects in a region of 3.5 x 3.5 arcmin 2 . In this paper we describe the instrument main subsystems, including the Folded-Cassegrain unit, the fiber link, the spectrograph, the cryostat, the detector and the control subsystems, and its performance numbers obtained during commissioning where the fulfillment of the instrument requirements is demonstrated. © 2018 SPIE.

Published
2018

20. First scientific observations with MEGARA at GTC

Author

Gil de Paz, A., Carrasco, E., Gallego, J., Iglesias-Páramo, J., Cedazo, R., García-Vargas, M. L., Arrillaga, X., Avilés, J. L., Bouquin, A., Carbajo, J., Cardiel, Nicolás, Carrera, M. A., Castillo-Morales, A., Castillo-Domínguez, E., Esteban San Román, S., Ferrusca, D., Gómez-Álvarez, P., Izazaga-Pérez, R., Lefort, B., López-Orozco, J. A., Maldonado, M., Martínez-Delgado, I., Morales-Durán, I., Mújica, E., Páez, G., Pascual, S., Pérez-Calpena, A., Picazo, P., Sánchez-Penim, A., Sánchez-Blanco, E., Tulloch, S., Velázquez, M., Vílchez Medina, José Manuel, Zamorano, J., Aguerri, A. L., Barrado y Navascués, David, Berlanas, S. R., Bertone, E., Cava, A., Catalán-Torrecilla, C., Cenarro, J., Chávez, M., Dullo, B. T., García, M., García-Rojas, J., Guichard, J., González Delgado, Rosa M., Guzmán, R., Herrero, A., Huélamo, Nuria, Hughes, D. H., Jiménez-Vicente, J., Kehrig, C., Marino, R.A., Márquez, Isabel, Masegosa, Josefa, Mayya, D., Méndez-Abreu, J., Mollá, M., Muñoz-Tuñón, C., Peimbert, M., Pérez-González, Pablo G., Pérez Montero, Enrique, Rodríguez, M., Rodríguez-Espinosa, J. M., Rodríguez Merino, L., Rodríguez-Muñoz, L., Rosa González, Daniel, Sánchez-Almeida, J., Sánchez Contreras, C., Sánchez-Blázquez, P., Sánchez, Sebastián F., Sarajedini, A., Silich, S., Simón-Díaz, S., Tenorio-Tagle, G., Terlevich, E., Terlevich, R., Torres-Peimbert, S., Trujillo, I., Tsamis, Y., Vega, O., Gil de Paz, A., Carrasco, E., Gallego, J., Iglesias-Páramo, J., Cedazo, R., García-Vargas, M. L., Arrillaga, X., Avilés, J. L., Bouquin, A., Carbajo, J., Cardiel, Nicolás, Carrera, M. A., Castillo-Morales, A., Castillo-Domínguez, E., Esteban San Román, S., Ferrusca, D., Gómez-Álvarez, P., Izazaga-Pérez, R., Lefort, B., López-Orozco, J. A., Maldonado, M., Martínez-Delgado, I., Morales-Durán, I., Mújica, E., Páez, G., Pascual, S., Pérez-Calpena, A., Picazo, P., Sánchez-Penim, A., Sánchez-Blanco, E., Tulloch, S., Velázquez, M., Vílchez Medina, José Manuel, Zamorano, J., Aguerri, A. L., Barrado y Navascués, David, Berlanas, S. R., Bertone, E., Cava, A., Catalán-Torrecilla, C., Cenarro, J., Chávez, M., Dullo, B. T., García, M., García-Rojas, J., Guichard, J., González Delgado, Rosa M., Guzmán, R., Herrero, A., Huélamo, Nuria, Hughes, D. H., Jiménez-Vicente, J., Kehrig, C., Marino, R.A., Márquez, Isabel, Masegosa, Josefa, Mayya, D., Méndez-Abreu, J., Mollá, M., Muñoz-Tuñón, C., Peimbert, M., Pérez-González, Pablo G., Pérez Montero, Enrique, Rodríguez, M., Rodríguez-Espinosa, J. M., Rodríguez Merino, L., Rodríguez-Muñoz, L., Rosa González, Daniel, Sánchez-Almeida, J., Sánchez Contreras, C., Sánchez-Blázquez, P., Sánchez, Sebastián F., Sarajedini, A., Silich, S., Simón-Díaz, S., Tenorio-Tagle, G., Terlevich, E., Terlevich, R., Torres-Peimbert, S., Trujillo, I., Tsamis, Y., and Vega, O.

Abstract

On June 25th 2017, the new intermediate-resolution optical IFU and MOS of the 10.4-m GTC had its first light. As part of the tests carried out to verify the performance of the instrument in its two modes (IFU and MOS) and 18 spectral setups (identical number of VPHs with resolutions R=6000-20000 from 0.36 to 1 micron) a number of astronomical objects were observed. These observations show that MEGARA@GTC is called to fill a niche of high-throughput, intermediateresolution IFU and MOS observations of extremely-faint narrow-lined objects. Lyman-¿ absorbers, star-forming dwarfs or even weak absorptions in stellar spectra in our Galaxy or in the Local Group can now be explored to a new level. Thus, the versatility of MEGARA in terms of observing modes and spectral resolution and coverage will allow GTC to go beyond current observational limits in either depth or precision for all these objects. The results to be presented in this talk clearly demonstrate the potential of MEGARA in this regard. © 2018 SPIE.

Published
2018

21. MEGARA anti-reflective coatings: theoretical and observed throughput estimations

Author

Ortiz, R., Carrasco, E., Páez, G., Pompa, O., Sánchez-Blanco, E., Gil de Paz, A., Gallego, J., Iglesias-Páramo, J., Ortiz, R., Carrasco, E., Páez, G., Pompa, O., Sánchez-Blanco, E., Gil de Paz, A., Gallego, J., and Iglesias-Páramo, J.

Abstract

MEGARA is the new integral field unit (IFU) and multi-object (MOS) spectrograph successfully commissioned at Gran Telescopio Canarias, in August 2017. MEGARA provides spectral resolutions R (fwhm) ~ 6000, 12000 and 20000, via volume phase holographic gratings, at very high efficiency in both IFU and MOS modes. In the case of MEGARA main optics and pupil elements optics, the surfaces in contact with air have an anti-reflective (AR) coatings to minimize the Fresnel losses at the interface glass-air. In this work we present the designs and calculation of the total throughput of the optical system based in the transmission measurements of the AR coated witness samples. The results reflect the benefits of having implemented customized AR coatings for the mean angle of incidence on each surface as the measured throughput was better than the requirements. We analyze the effects of the pupil elements AR coatings for each spectral configuration. © 2018 SPIE

Published
2018

23. MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope

Author

Evans, Christopher J., Simard, Luc, Takami, Hideki, Gil de Paz, A., Carrasco, E., Gallego, J., Iglesias-Páramo, J., Cedazo, R., García Vargas, M. L., Arrillaga, X., Avilés, J. L., Cardiel, N., Carrera, M. A., Castillo-Morales, A., Castillo-Domínguez, E., de la Cruz García, J. M., Esteban San Román, S., Ferrusca, D., Gómez-Álvarez, P., Izazaga-Pérez, R., Lefort, B., López-Orozco, J. A., Maldonado, M., Martínez-Delgado, I., Morales Durán, I., Mujica, E., Páez, G., Pascual, S., Pérez-Calpena, A., Picazo, P., Sánchez-Penim, A., Sánchez-Blanco, E., Tulloch, S., Velázquez, M., Vílchez, J. M., Zamorano, J., Aguerri, A. L., Barrado y Naváscues, D., Bertone, E., Cava, A., Cenarro, J., Chávez, M., García, M., García-Rojas, J., Guichard, J., González-Delgado, R., Guzmán, R., Herrero, A., Huélamo, N., Hughes, D. H., Jiménez-Vicente, J., Kehrig, C., Marino, R. A., Márquez, I., Masegosa, J., Mayya, Y. D., Méndez-Abreu, J., Mollá, M., Muñoz-Tuñón, C., Peimbert, M., Pérez-González, P. G., Pérez Montero, E., Rodríguez, M., Rodríguez-Espinosa, J. M., Rodríguez-Merino, L., Rodríguez-Muñoz, L., Rosa-González, D., Sánchez-Almeida, J., Sánchez Contreras, C., Sánchez-Blázquez, P., Sánchez Moreno, F. M., Sánchez, S. F., Sarajedini, A., Silich, S., Simón-Díaz, S., Tenorio-Tagle, G., Terlevich, E., Terlevich, R., Torres-Peimbert, S., Trujillo, I., Tsamis, Y., Vega, O., and UAM. Departamento de Física Teórica

Subjects
Astrofísica, Optical fiber, Techniques: spectroscopic, Instrumentation: spectrographs, 01 natural sciences, spectroscopic [Techniques], Spiral, law.invention, 010309 optics, Telescope, Optics, Cosmic web, law, 0103 physical sciences, Local Group [Galaxies], spectrographs [Instrumentation], Galaxies: Local Group, Spectral resolution, 010303 astronomy & astrophysics, Spectrograph, ISM: kinematics and dynamics, Physics, business.industry, Resolution (electron density), Kinematics and dynamics, Física, Astronomía, kinematics and dynamics [ISM], business
Abstract

A. Gil de Paz... et al. "MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope". Ground-based and Airborne Instrumentation for Astronomy VI, Proc.SPIE 9908 ( (4 August 2016); doi: 10.1117/12.2231988. Copyright 2016 Society of Photo‑Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited., Proceedings of the VI Ground-based and Airborne Instrumentation for Astronomy Conference (Edinburgh, United Kingdom), MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is an optical Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) designed for the GTC 10.4m telescope in La Palma that is being built by a Consortium led by UCM (Spain) that also includes INAOE (Mexico), IAA-CSIC (Spain), and UPM (Spain). The instrument is currently finishing AIV and will be sent to GTC on November 2016 for its on-sky commissioning on April 2017. The MEGARA IFU fiber bundle (LCB) covers 12.5x11.3 arcsec2 with a spaxel size of 0.62 arcsec while the MEGARA MOS mode allows observing up to 92 objects in a region of 3.5x3.5 arcmin 2 around the IFU. The IFU and MOS modes of MEGARA will provide identical intermediate-to-high spectral resolutions (RFWHM∼6,000, 12,000 and 18,700, respectively for the low-, mid- and high-resolution Volume Phase Holographic gratings) in the range 3700-9800 ÄA. An x-y mechanism placed at the pseudo-slit position allows (1) exchanging between the two observing modes and (2) focusing the spectrograph for each VPH setup. The spectrograph is a collimator-camera system that has a total of 11 VPHs simultaneously available (out of the 18 VPHs designed and being built) that are placed in the pupil by means of a wheel and an insertion mechanism. The custom-made cryostat hosts a 4kx4k 15-μm CCD. The unique characteristics of MEGARA in terms of throughput and versatility and the unsurpassed collecting are of GTC make of this instrument the most efficient tool to date to analyze astrophysical objects at intermediate spectral resolutions. In these proceedings we present a summary of the instrument characteristics and the results from the AIV phase. All subsystems have been successfully integrated and the system-level AIV phase is progressing as expected

Published
2016

27. MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope

Author

Gil de Paz, A., additional, Carrasco, E., additional, Gallego, J., additional, Iglesias-Páramo, J., additional, Cedazo, R., additional, García Vargas, M. L., additional, Arrillaga, X., additional, Avilés, J. L., additional, Cardiel, N., additional, Carrera, M. A., additional, Castillo-Morales, A., additional, Castillo-Domínguez, E., additional, de la Cruz García, J. M., additional, Esteban San Román, S., additional, Ferrusca, D., additional, Gómez-Álvarez, P., additional, Izazaga-Pérez, R., additional, Lefort, B., additional, López-Orozco, J. A., additional, Maldonado, M., additional, Martínez-Delgado, I., additional, Morales Durán, I., additional, Mujica, E., additional, Páez, G., additional, Pascual, S., additional, Pérez-Calpena, A., additional, Picazo, P., additional, Sánchez-Penim, A., additional, Sánchez-Blanco, E., additional, Tulloch, S., additional, Velázquez, M., additional, Vílchez, J. M., additional, Zamorano, J., additional, Aguerri, A. L., additional, Barrado y Naváscues, D., additional, Bertone, E., additional, Cava, A., additional, Cenarro, J., additional, Chávez, M., additional, García, M., additional, García-Rojas, J., additional, Guichard, J., additional, González-Delgado, R., additional, Guzmán, R., additional, Herrero, A., additional, Huélamo, N., additional, Hughes, D. H., additional, Jiménez-Vicente, J., additional, Kehrig, C., additional, Marino, R. A., additional, Márquez, I., additional, Masegosa, J., additional, Mayya, Y. D., additional, Méndez-Abreu, J., additional, Mollá, M., additional, Muñoz-Tuñón, C., additional, Peimbert, M., additional, Pérez-González, P. G., additional, Pérez Montero, E., additional, Rodríguez, M., additional, Rodríguez-Espinosa, J. M., additional, Rodríguez-Merino, L., additional, Rodríguez-Muñoz, L., additional, Rosa-González, D., additional, Sánchez-Almeida, J., additional, Sánchez Contreras, C., additional, Sánchez-Blázquez, P., additional, Sánchez Moreno, F. M., additional, Sánchez, S. F., additional, Sarajedini, A., additional, Silich, S., additional, Simón-Díaz, S., additional, Tenorio-Tagle, G., additional, Terlevich, E., additional, Terlevich, R., additional, Torres-Peimbert, S., additional, Trujillo, I., additional, Tsamis, Y., additional, and Vega, O., additional

Published
2016
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28. Performance of MEGARA spectrograph optical elements

Author

Carrasco, E., additional, Páez, G., additional, Izazaga, R., additional, de la Luz Hurtado, J., additional, Pérez, C., additional, Granados, F., additional, Aguirre, D., additional, Percino, E., additional, Reyes, J., additional, Gil de Paz, A., additional, Gallego, J., additional, and Iglesias, J., additional

Published
2016
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33. Solid state fermentation of the wastes generated in the wine-making industry

Author

Berradre, M, Mejías, M, Ferrer, J, Chandler, C, Páez, G, Mármol, Z, Ramones, E, and Fernández, V

Subjects
fermentación, desecho de uva, aireación, fermentation, aeration, grape bagasee
Abstract

Se estudió el efecto de la aireación y el tiempo de aireación en el bioproceso semisólido de bagazo de uva sobre los parámetros indicadores de la biotransformación. El proceso se efectuó en un biorreactor cilíndrico de lecho empacado de 98 litros de capacidad de operación, conectado a un rotámetro y a un compresor para medir los flujos de aire: 30, 50, 80 y 140 L.min-1, durante los tiempos de aireación de 2 y 3 horas. El pH se mantuvo entre 7,34 y 8,41 durante el tiempo de duración del proceso. El flujo de aire y el tiempo de aireación fueron adecuados para obtener temperaturas superiores a los 52ºC. La humedad se mantuvo entre 30 y 60%. Del análisis de varianza aplicado (a=0,05), se estableció que el efecto causado por el flujo de aire sobre el contenido de nitrógeno, el contenido de carbono y la relación C/N no dependió del tiempo de aireación seleccionado. El flujo de aire empleado y los tiempos de aireación afectan el contenido de nitrógeno en el producto obtenido, no siendo así para el contenido de carbono; por otro lado, el flujo de aire empleado afectó la relación C/N, mientras que los tiempos de aireación no afectaron esta relación. Entre todos los flujos de aire y tiempos de aireación las condiciones de 50 L.min-1 y 2 horas de aireación garantizaron la obtención de un buen producto con un consumo de energía mínimo. The ventilation effect and time in the bio-process of semi-solid grape bagasse on the indicating parameters of the biotransformation was evaluated. The process was carried out in a cylindrical packed bed batch bioreactor of 98 L of operation capacity, connected to a Rotameter and a compressor to measure the air flows: 30, 50, 80 and 140 L.min-1, during the aeration of 2 and 3 hours. The pH stayed between 7.34 and 8.41 during the process duration time. The air flow and the aeration time were adapted to obtain temperatures above 52ºC. Moisture stayed between 30 and 60%. From the variance analysis applied (a=0.05), it can be established that the effect caused by the air flow on the nitrogen content, the carbon content and C/N relationship did not depend on the aeration time selected. The air flow and the aeration times used affect the nitrogen content in the final product, contrary to the carbon content; on the other hand, the used air flow affected C/N relationship, whereas aeration times did not affect this relationship. Among all the air fluxes used, the conditions of 50 L.min-1 and 2 hours of aeration guaranteed the obtaining of a well product with minimum power consumption.

Published
2009

34. Evaluation of total polyphenols in white wine dealt with chitin

Author

Mármol, Z, Cardozo, J, Carrasquero, S, Páez, G, Chandler, C, Araujo, K, and Rincón, M

Subjects
quitina, total polyphenols, polifenoles totales, white wines, vino blanco, chitin
Abstract

Se evaluó el contenido de polifenoles totales en vino blanco tratado con quitina como adsorbente. El vino fue elaborado con un mosto de uva Vitis vinífera var. Malvasía, y tratado con quitina obtenida a nivel de laboratorio a partir de conchas de camarón (Pennaeus vannamei). Se comparó el comportamiento con quitina comercial y con el adsorbente comúnmente usado en enología, caseínato de potasio. Al vino obtenido se le determinó el contenido de polifenoles totales, catequinas, color, acidez total, pH y etanol durante tres meses de almacenamiento. Los resultados obtenidos fueron analizados bajo un diseño completamente al azar, con arreglo en parcelas divididas, para un nivel de significancia del 1%, observándose un efecto altamente significativo entre los estabilizantes y el tiempo de almacenamiento, sobre el contenido de polifenoles totales y catequinas. El vino tratado con quitina de elaboración propia, presentó el mas bajo contenido de catequinas (1,06 mg.L-1), polifenoles totales (206,82 mg.L-1) y color (absorbancia 420 nm, 0,1686), durante el período de almacenamiento considerado, corroborando la afinidad de la quitina con los compuestos fenólicos, especialmente las catequinas. The total polyphenols content in white wine treated with chitin like adsorbent was evaluated. The wine was done with a grape must Vitis vinífera var. Malvasía, chitin-treated in laboratory from shrimp (Pennaeus vannamei) shells. The behavior of commercial chitin and potassium casseinate, commonly used like adsorbent in enology, was compared. The total polyphenols content, catechins, color, total acids, pH and ethanol were determined in wine obtained during the storage time for three months. The obtained results were analyzed under a split plot design, for a significance level of 1%, being observed a highly significant effect between the stabilizing ones and the storage time on the total polyphenols and catechins content. The wine treated with home made chitin showed the lower catechins content (1.06 mg.L¹), total polyphenols (206.82 mg.L-1) and color (absorb 420 nm, 0.1686), during the storage period, by supporting the chitin affinity with the phenolic compounds, especially catechins.

Published
2009

35. Resúmenes

Author

Abad, P., Abreu, P., Acencio, N., Acevedo, S., Acevedo, V., Agohn, R., Albornoz, L., Alvarez, P., Arana, C., Arango, A., Arango, J. J., Arbeláez, A., Arbeláez, L. E., Arboleda, W., Arenas, A., Arenas, I. C., Arias, M. L., Aristizábal, A., Aristizábal, D., Arrieta, E., Arrieta, M., Arroyave, H., Arroyo, J. A., Arteaga, F., Ascione, G., Asenjo, R., Astudillo, B., Atehortúa, L. H., Badel, A., Badiel, M., Balestrini, S., Barragán, R., Barrera, C., Barrera, J. C., Barrera, J. G., Benítez, L. M., Bermúdez, M. J., Bernal, O., Betancourt, J., Blanco, G., Bohórquez, R., Bravo, D., Bresciani, R., Builes, A., Buitrago, L, Burgoa, A., Báez, L. P., Cabrales, J., Cabrales, M., Cabrera, C., Cadavid, A. M., Cadavid, E., Cadena, R., Caicedo, L. C., Caicedo, V., Calderón, J., Calderón, L. I., Camacho, J., Camacho, P., Camacho, P. A., Camargo, D. M., Campos, M. T., Campuzano, G., Capasso, A., Cardona, H., Cardona, J., Carreño, A., Carreño, M., Carrillo, G., Casariego, G., Cassalett, G., Castellanos, H., Castillo, M., Castillo, V., Castro, H., Castro, J., Castro, P., Cañas, E., Celis, A., Celis, L. A., Chávez, A., Chávez, J. C., Colorado, A., Contreras, E., Coral, A., Coronado, M., Correa, J. R., Corredor, S., Corzo, L., Corzo, O., Cotes, J. M., Cruz, A., Cubides, C., Cuellar, F., Cuervo, A., Cárdenas, A., Cárdenas, M., Cárdenas, M. E., Cárdenas, P. E., Cárdenas, W., De Viveros, C., Delgadillo, A., Delgado, J., Delgado, P., Donado, B. P., Donado, J. R., Duarte, E., Dueñas, R., Duque, J. G., Duque, M., Durango, L., Durán, A. E., Durán, M. A., Dávila, L. M., Díaz, A., Díaz, A. L., Díaz, C., Díaz, G., Díaz, L., Díaz, L. A., Díaz, L. H., Díaz, M., Díaz, S., Díaz, V, Echavarría, J., Echeverri, D., Echeverri, M., Echeverría, L., Echeverría, R., Erdmenger, J., Escobar, A., Escobar, C., Escobar, E., Escorcia, E., Espinosa, A., Espíndola, R., Estrada, G., Estrada, J., Estupiñán, A. M., Eusse, C., Fernández, A., Fernández, D., Fernández, H., Fernández, N., Fernández, O., Fernández, R., Flórez, M., Fontanilla, M. R., Fragozo, C. A., Franco, C., Franco, G., Franco, H. J., Franco, J., Franco, S., Gallo, J., Garcés, J., García, E., García, L., Garzón, M. E., Gaviria, A., Gil, E., Giraldo, D., Giraldo, J. A., Giraldo, JC., Giraldo, N., Gomesese, O. F., González, G., González, M., González, R., Gordillo, M., Guanes, R., Guerra, P., Guerrero, L., Guitérrez, L., Gulh, F., Gutiérrez, J., Gutiérrez, M., Guyatt, G., Guzmán, L., Guzmán, N., Gárces, J., Gómez, A., Gómez, C. A., Gómez, F., Gómez, G., Gómez, G. S., Gómez, J., Gómez, J. F., Gómez, M., Gómez, P. F., Hernández, A., Hernández, C., Hernández, E., Hernández, G., Hernández, H., Hernández, L., Hernández, N., Herrera, V. M., Hoyos, A., Hurtado, E. F., Ibarra, P., Indaburu, D., Iragorri, A., Isaza, D., Jaimes, F., Jaimes, G., Jaramillo, C., Jaramillo, C. J., Jaramillo, G., Jaramillo, J., Jaramillo, J. C., Jaramillo, J. S., Jaramillo, M., Jaramillo, M. H., Jaramillo, N., Jaramillo, R., Jiménes, M., Jiménez, C., Jiménez, L., Jiménez, L. S., Jiménez, M., Jurado, A., Jurado, A. F., Lemus, J., Leyes, R., León, J., Lince, R., Lizarazo, J., Lizcano, F., Llamas, A., Llano, J. F., Lombo, B., Lozano, M., Luengas, C., Lugo, L. H., López, F., López, M., López, P., Malabet, I., Maldonado, J., Manrique, E. J., Manrique, F., Mantilla, G., Manzi, E., Martínez, H., Martínez, J. P., Martínez, L. X., Martínez, M. P., Marín, J., Mateus, L., Matías, N., Mayorga, A., Medina, A., Medina, E., Medina, H., Mejía, Mejía, A., Mejía, D., Mejía, I., Mendoza, S., Merchán, A., Merlano, S., Miranda, A., Molina, C., Montenegro, J., Montero, A., Montero, G., Montero, G. A., Montes, F., Montoya, E., Montoya, J. D., Montoya, L. M., Montoya, M., Moreno, E., Morillo, C., Morillo, C. A., Morris, R., Mosquera, W., Moya, L., Murgueitio, R., Muñoz, A., Mármol, J. A., Márquez, A., Múnera, A., Nader, C., Navas, C. M., Navia, J. J., Negrete, A., Niño, M. E., Náder, C. A., Núñez, F., Ochoa, J., Olaya, C., Olaya, L., Orjuela, A., Orjuela, H., Orozco, J. L., Orrego, C. M., Ortiz, C., Ortiz, S. D., Osorio, E., Ospina, C. A., Oviedo, M., Oñate, R., Pabón, L. M., Palomino, G., Pardo, C., Pardo, R., Parra, G. A., Parra, J. C., Parra, L. E., Parra, T., Patarroyo, M., Pava, L. F., Pedraza, J. E., Pedraza, O., Peláz, A. M., Perafán, A., Perafán, P., Perafán, S., Petro, C., Pineda, M., Pinzón, J. B., Pira, P. S., Pizarro, C., Piñeros, D., Plata, R., Portilla, P., Prada, E., Pradilla, G., Pulgarín, L. G., Páez, G., Páez, L., Pérez, C., Pérez, G. E., Pérez, J., Pérez, M., Quesada, K., Quintero, A., Quintero, D., Quintero, M., Quiroz, C., Ramos, M. L., Ramírez, A., Ramírez, I., Ramírez, L., Ramírez, M., Ramírez, O., Ramírez, S., Rangel, G. W., Rendón, J. C., Restrepo, A., Restrepo, G., Restrepo, J. A., Reynolds, J., Rincón, J. D., Rincón, O. S., Rincón, P., Rivas, G., Rivas, L. F., Riveros, F., Roa, J. L., Roa, N., Rodríguez, A., Rodríguez, D. C., Rodríguez, E., Rodríguez, J., Rojas, C. E., Rojas, J. C., Romero, M. F., Rosas, F., Rosas, J. F., Rosso, F., Rueda, C. L., Rueda, M., Rueda-Clausen, C. F., Ruiz, A., Ruiz, D., Ruiz, E. J., Ruiz, H., Ruiz, M., Ruz, M., Saaibi, J. F., Saaibi, L. C., Salazar, C., Salazar, D., Salazar, G., Saldarriaga, C., Saldoval, N., Sanabria, C. L., Sandoval, A. G., Sandoval, J. M., Sandoval, N., Sandoval, N. F., Santos, H., Sarmiento, J. M., Satizábal, C., Senior, J. M., Serano, D., Serrano, N. C., Silva, F., Silva, F. A., Silva, S. Y., Smieja, M., Solano, E., Solano, J. A., Suárez, M., Sáenz, L., Tello, J., Tenorio, C., Tenorio, L. F., Thabane, L., Tique, C., Toro, N., Torres, A., Torres, G., Torres, P., Torres, Y., Trujillo, P., Téllez, M. R., Umaña, J., Uribe, C. E., Uribe, F., Uribe, W., Urrego, M. T., Vacca, M., Vallejo, M., Vanegas, D., Vanegas, D. I., Vanegas, E., Vargas, C., Vargas, R. D., Vega, J. A., Velasco, H. M., Velasco, V. M., Velásquez, D., Velásquez, J., Velásquez, J. G., Velásquez, M., Velásquez, O., Vesga, B. E., Vesga, B.E., Vidal, C., Villa, L. A., Villa, V., Villa-Roel, C., Villalba, J. C., Villalobos, C., Villamil, C., Villamizar, C., Villamizar, E., Villar, J. C., Villegas, A., Villegas, F., Villegas, F. A., Villegas, M. F., Vázquez, C., Vélez, J. F., Vélez, L. A., Vélez, S., Yabur, M., Zapara, J., Zapata, H., Zapata, J., Zarruk, J. G., Zuluaga, A., and Zuluaga, O.

Published
2006

36. Obtainment and characterization of pectin since of the peel of passion fruit (Passiflora edulis f. flavicarpa Degener)

Author

D´Addosio, R, Páez, G, Marín, M, Mármol, Z, and Ferrer, J

Subjects
pectin, estado de coloración, pectina, parchita, agente de extracción, skin color, passion fruit, extracting agent
Abstract

Se analizó la influencia del estado de coloración (verde-blanco, verde-amarillo y amarillo) y del agente de extracción (HCl, H3PO4, H3PO4-(NaPO3) 6) sobre la pectina de la corteza seca de parchita. El contenido de pectina se determinó por el método de hidrólisis ácida, a las condiciones de extracción pH: 3.0, temperatura: 90-95ºC y tiempo de calentamiento: 90 minutos. La calidad de la pectina se evaluó mediante análisis de humedad, cenizas, peso equivalente, metoxilo, ácido anhidrourónico, grado de esterificación, tiempo de gelificación, viscosidad relativa, espectros de infrarrojo y los minerales calcio (Ca), magnesio (Mg) y sodio (Na). El rendimiento máximo de pectina obtenido fue 18,45% al usarse como extractante H3PO4-(NaPO3) 6; mientras que la pectina de mejor calidad fue extraída con HCl, con un contenido de ácido anhidrourónico y de metoxilo de 78% y 9,9%, respectivamente. La corteza de la parchita en el estado de madurez amarillo presentó el mayor contenido de pectina, mientras que la extraída en el estado de madurez verde-blanco exhibió las mejores propiedades gelificantes. La espectrometría de IR confirmó que la pectina tiene alto contenido de metoxilo. El análisis de los minerales arrojó los siguientes resultados: calcio 0,10 a 0,15%, magnesio 0,05 a 0,08% y sodio 0,02 a 0,04%. La pectina de la corteza de parchita no presenta características inusuales que indiquen alguna desventaja potencial comercial. In this study the influence of the skin color (greenish-white, greenish-yellow and yellow) and of the extracting agent (HCl, H3PO4, H3PO4-(NaPO3) 6) on the pectin of the dry peel of passion fruit was analized. The content of pectin was determined through the method of acid hydrolysis under the following extracting conditions pH: 3.0, temperature: 90-95ºC heating period: 90 minutes. The quality of the pectin was evaluated by means of the analysis of the humidity, ashes, equivalent weight, metoxyle, anhydrouronic acid, esterification, gelling period, relative viscosity and infrared spectrum. The maximun yield of pectin obtained was 18,45% when H3PO4-(NaPO3) 6 was used as extracting agent; whereas in terms of quality the pectin was better when HCl was used as extracting agent, with a content of anhydrouronic acid and metoxyle of 78% and 9,9%, respectively. The peel of the passion fruit in the yellow state of ripeness showed the highest content of pectin and the greenish-white state of ripeness showed the best gelling properties. The IR spectrometry confirmed that the pectin was of a high metoxyle. The analysis of the minerals threw the following results: calcium 0,10 to 0,15%, magnesium 0,05 to 0,08% and sodium 0,02 to 0,04%. The pectin of passion fruit peel does not offer unusual characteristics that would point to some potential commercial disadvantage.

Published
2005

37. MEGARA optical manufacturing process

Author

Carrasco, E., additional, Páez, G., additional, Granados, F., additional, Percino, E., additional, Castillo-Domínguez, E., additional, Avilés, J. L., additional, García-Vargas, M. L., additional, Gil de Paz, A., additional, Gallego, J., additional, Iglesias-Páramo, J., additional, and Cedazo, R., additional

Published
2014
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39. MEGARA: a new generation optical spectrograph for GTC

Author

Gil de Paz, A., additional, Gallego, J., additional, Carrasco, E., additional, Iglesias-Páramo, J., additional, Cedazo, R., additional, Vílchez, J. M., additional, García-Vargas, M. L., additional, Arrillaga, X., additional, Carrera, M. A., additional, Castillo-Morales, A., additional, Castillo-Domínguez, E., additional, Eliche-Moral, M. C., additional, Ferrusca, D., additional, González-Guardia, E., additional, Lefort, B., additional, Maldonado, M., additional, Marino, R. A., additional, Martínez-Delgado, I., additional, Morales Durán, I., additional, Mujica, E., additional, Páez, G., additional, Pascual, S., additional, Pérez-Calpena, A., additional, Sánchez-Penim, A., additional, Sánchez-Blanco, E., additional, Tulloch, S., additional, Velázquez, M., additional, Zamorano, J., additional, Aguerri, A. L., additional, Barrado y Naváscues, D., additional, Bertone, E., additional, Cardiel, N., additional, Cava, A., additional, Cenarro, J., additional, Chávez, M., additional, García, M., additional, Guichard, J., additional, Gúzman, R., additional, Herrero, A., additional, Huélamo, N., additional, Hughes, D., additional, Jiménez-Vicente, J., additional, Kehrig, C., additional, Márquez, I., additional, Masegosa, J., additional, Mayya, Y. D., additional, Méndez-Abreu, J., additional, Mollá, M., additional, Muñoz-Tuñón, C., additional, Peimbert, M., additional, Pérez-González, P. G., additional, Pérez Montero, E., additional, Rodríguez, M., additional, Rodríguez-Espinosa, J. M., additional, Rodríguez-Merino, L., additional, Rosa-González, D., additional, Sánchez-Almeida, J., additional, Sánchez Contreras, C., additional, Sánchez-Blázquez, P., additional, Sánchez Moreno, F. M., additional, Sánchez, S. F., additional, Sarajedini, A., additional, Serena, F., additional, Silich, S., additional, Simón-Díaz, S., additional, Tenorio-Tagle, G., additional, Terlevich, E., additional, Terlevich, R., additional, Torres-Peimbert, S., additional, Trujillo, I., additional, Tsamis, Y., additional, Vega, O., additional, and Villar, V., additional

Published
2014
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44. Kinetics of the acid hydrolysis of sugar cane bagasse pith

Author

Ferrer, J. R., Páez, G., Arenas de Moreno, L., Chandler, C., Mármol, Z., and Sandoval, L.

Subjects
bagasse pith, bagacillo, sugar, Caña de azúcar, hidrólisis ácida, lignocellulosic material, material lignocelulósico, sugar cane, Acid hydrolysis, azúcares
Abstract

Se estudió la producción de azúcares reductores (AR) a partir de la hidrólisis ácida del bagacillo de caña, ya que ellos representan una fuente fundamental de carbohidratos para procesos biotecnológicos, orientados a la producción de proteína unicelular y compuestos orgánicos. El bagacillo tratado (BT) y no-tratado (BNT) con inmersión en agua (TA) a temperatura ambiente, se hidrolizó, mediante ebullición a reflujo, con diferentes concentraciones (C) de ácido sulfúrico diluido (2%, 4%, 6% y 8 % v/v) a diferentes tiempos de reacción (TR) (4, 8 y 12 h.), en una relación líquido: sólido de 30/1. La determinación cuantitativa de AR se realizó por espectrofotometría UV-Vis por el método del ácido 3,5 dinitrosalisílico (DNS). El experimento involucró un diseño totalmente al azar con un arreglo factorial 2 x 3 x 4 con tres repeticiones. Se realizó un análisis de varianza con el paquete estadístico "Statistical Analysis System" (SAS); se utilizó la prueba HSD de Tukey para los efectos principales y el método de mínimos cuadrados para las interacciones. Los resultados demostraron que todos los factores en estudio y sus interacciones, excepto la interacción (TA x TR), afectaron significativamente (P

Published
2002

45. EL SPECT EN LA EVALUACIÓN DE LAS DEMENCIAS

Author

PÁEZ G, DIANA ISABEL and PABÓN C, LUZ MARITZA

Subjects
Procesamiento de Imágenes Digitales, Demencia, Dementia, Imágenes Diagnósticas, Computer Assisted Image Processing, Diagnostic Imagine
Abstract

En los últimos años se ha logrado un gran progreso en el manejo de pacientes con demencia, debido a la implementación y desarrollo de las neuroimágenes, especialmente de los estudios funcionales que permiten obtener información acerca de las propiedades bioquímicas, fisiológicas o eléctricas cerebrales. Su principal aplicación es colaborar al diagnostico diferencial de los pacientes con alteraciones cognitivas. Dentro del grupo de estudios funcionales se encuentra el SPECT cerebral de perfusión, que permite evaluar el flujo sanguíneo cerebral regional, mediante la utilización de trazadores radioactivos y mostrar de manera indirecta la actividad metabólica y sus alteraciones. Esta técnica evidencia los rasgos de los diferentes tipos de demencia: Alzheimer, alteraciones vasculares, frontotemporales, asociadas a SIDA y otras. Una ventaja adicional del SPECT es su amplia disponibilidad y su costo razonable. Recent years have witnessed progress in management of patients with dementia, thanks to implementation and development of brain imaging, especially funcional srudies to elucídate biochemical physiological and electrical properties. Differential diagnosis of cognitive disturbances will have a broader basis. Among functional studies, brain perfusión SPECT allows assessment of regional blood supply, through radiactive tracers which indirectly show metabolic activity and its alteration. This technique differentiates fearures of several types of dementia: Alzheimer, Vascular and fronto-temporal lesions, AIDS and Others. Additional ad vantages of SPECT are availability and reasonable cost.

Published
2000

46. A Colloquium on the Congress 'Gift for Life. Considerations on Organ Donation'.

Author

Nanni Costa, A, Simón, Cj, Spagnolo, Antonio Gioacchino, Comoretto, N, Laffitte, J, Gäbel, H, Delmonico, F, Muehlbacher, F, Schaupp, W, Glazier, A, Garcia, V, Abbud Filho, M, Medina Pestana, J, Grainer, M, Donadio, P, Guermani, A, Bosco, R, Giordano, F, Martinez Lopez, Ab, Brunetti, M, Manyalich, M, Páez, G, Valero, R, Matesanz, R, Coll, E, Dominguez Gil, B, Mahillo, B, Escobar, E, Garrido, G, Cantarovich, F., Spagnolo, Antonio Gioacchino (ORCID:0000-0002-5762-2164), Nanni Costa, A, Simón, Cj, Spagnolo, Antonio Gioacchino, Comoretto, N, Laffitte, J, Gäbel, H, Delmonico, F, Muehlbacher, F, Schaupp, W, Glazier, A, Garcia, V, Abbud Filho, M, Medina Pestana, J, Grainer, M, Donadio, P, Guermani, A, Bosco, R, Giordano, F, Martinez Lopez, Ab, Brunetti, M, Manyalich, M, Páez, G, Valero, R, Matesanz, R, Coll, E, Dominguez Gil, B, Mahillo, B, Escobar, E, Garrido, G, Cantarovich, F., and Spagnolo, Antonio Gioacchino (ORCID:0000-0002-5762-2164)

Abstract

In the past half-century, solid organ transplantation has become standard treatment for a variety of diseases. The technique of successful transplant operations has given rise to a whole range of ethical questions. Currently, the major ethical problems come out of the shortage of organs, which has motivated a host of efforts to increase organ supply, some of which are very controversial. The purpose of this essay is to explore some of the ethical issues involved in transplantation. The ethics of transplantation derives from a tension between bodily integrity and human solidarity. Several widely accepted bioethical principles are relevant to practices in transplantation. They include non-maleficence (avoiding harm), beneficence (producing benefit), autonomy (respecting personal choices), and justice (distributing benefits and burdens equitably). These principles require that some basic conditions should always be satisfied for an organ donation to be ethical. On the base of the principles discussed we conclude that organ donation is a noble act of human solidarity, therefore medical community as well as society should support this high value gift. However donation is a personal decision taken by the donor well informed and the consent given. To fully respect donor’s human dignity, the transplant should preserve the life and the integrity of the donor. While the sale of organs should be regarded as a reductive and instrumental use of the person, we strongly support an appropriate implementation of the educational pathway to obtain acts of personal and humanistic organ donation.

Published
2009

47. MEGARA spectrograph optics

Author

Carrasco, E., primary, Sánchez-Blanco, E., additional, García-Vargas, M. L., additional, Gil de Paz, A., additional, Páez, G., additional, Gallego, J., additional, Sánchez, F. M., additional, and Vílchez, J. M., additional

Published
2012
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