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1,014 results on '"Lopez, Julio"'

151. Efficient Software Implementation of Binary Field Arithmetic Using Vector Instruction Sets

Author

Aranha, Diego F., López, Julio, Hankerson, Darrel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Abdalla, Michel, editor, and Barreto, Paulo S. L. M., editor

Published
2010
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152. BEMC: A Searchable, Compressed Representation for Large Seismic Wavefields

Author

López, Julio, Ramírez-Guzmán, Leonardo, Bielak, Jacobo, O’Hallaron, David, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Gertz, Michael, editor, and Ludäscher, Bertram, editor

Published
2010
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153. High-Speed Parallel Software Implementation of the η T Pairing

Author

Aranha, Diego F., López, Julio, Hankerson, Darrel, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Pieprzyk, Josef, editor

Published
2010
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159. Software Implementation of Pairing-Based Cryptography on Sensor Networks Using the MSP430 Microcontroller

Author

Gouvêa, Conrado Porto Lopes, López, Julio, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Roy, Bimal, editor, and Sendrier, Nicolas, editor

Published
2009
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161. An Update on the Epidemiology of Uveitis in an Urban Setting in Northern Madrid, Spain.

Author

Sesmero-Garcia, Celia, Serrador, Mercedes, Revenga, Marcelino, and Gonzalez-Lopez, Julio J.

Subjects
UVEITIS, VISUAL acuity, MACULAR edema, EPIDEMIOLOGY, IRIDOCYCLITIS
Abstract

To describe the incidence, prevalence and etiologies of uveitis in Madrid, Spain. A retrospective cross-sectional study was performed in a single hospital. All consecutive cases of uveitis that attended the Hospital during year 2019 were included. Mean incidence and prevalence were calculated. Three hundred and one cases were included. Of these, 127 were incident. This represents an incidence of 21.24 new cases per 100,000 persons/year, and a prevalence was 50.43 cases per 100,000 persons. Mean age was 56.89 ± 18.78 years, and 159 were women (52.8%). Sixty-two cases were infectious (20.6%). Age (p =.005), initial visual acuity (p =.001) and cystoid macular oedema (CMO; p =.010) were found to be independent predictors of the final best corrected visual acuity (BCVA) in patients with uveitis. Uveitis affects approximately 1 in 1800 persons in northern Madrid. Younger age, better initial visual acuities and the presence of CMO predicted better final BCVA. [ABSTRACT FROM AUTHOR]

Published
2023
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179. Diversification of predators in multi-trophic communities: A trait-based theoretical approach

Author

Ayala Lopez, Julio Antonio and Ayala Lopez, Julio Antonio

Abstract

One of the main challenges in ecology and evolutionary biology is to understand how biodiversity emerges and is maintained, given the complexity of ecological and evolutionary processes combined. Understanding how multi-trophic interactions occur from a theoretical perspective is highly relevant for our understanding of diversification in complex ecosystems. Here, I explore how the diversification of predators is driven by predator-prey interactions in an eco-evolutionary context. I evaluate the effect of ecological and reproductive characteristics of predators on their diversification by using a trait-based and individual-based model. In terms of predator ecological characteristics, I find that higher feeding efficiency and intermediate predator niche widths facilitate diversification through higher population sizes and ecological opportunity respectively. In terms of reproduction, asexual reproduction facilitates predator diversification when compared to sexual reproduction, while the latter can hinder diversification unless assortative mating is high. Finally, high predator mutation rates allow for diversification, but only in combination with the characteristics mentioned before. The model thus improves our mechanistic understanding of the diversification of trophic communities, and it enables us to further study how eco-evolutionary interactions can allow biodiversity to arise., How does evolution across the food web result in diversification? A big question in evolutionary biology is what causes life on Earth to diversify. From the mosses and grasses in the arctic tundra to the exotic birds of paradise in Oceania, life comes in all shapes, sizes, and colours. Much of biodiversity is the product of adaptive radiations, the process by which a single species rapidly evolves into many species that adapt in response to newly available resources or changes in their environment. An example of this process is the famous Darwin’s finches in the Galapagos islands, which all descended from a single species and adapted their beak shape depending on the resources available. While some adaptive radiations are driven by competition, other mechanisms such as mate preference and trophic interactions can play a role in diversification. When interactions between trophic levels cause diversification on a lower trophic level (e.g. when predation causes selection on prey), the phenomenon is referred to as “radiation cascades”. Similarly, when these interactions act from a lower to a higher trophic level, and specifically when diversifying prey influences the evolution of predators, it’s referred to as “Upward adaptive radiation cascades”. In my thesis project, I focus on the latest, where I explore how different predator characteristics affect their diversification using a theoretical model. To achieve this, I simulate prey and predator populations through a model that allows each organism to be represented as an individual entity. With this framework, organisms can interact with each other through competition, predation, and mate choice. Through my simulations, I find that predators diversify more when their niche width (i.e. the broadness of their diet) is intermediate, as well as when their feeding efficiency is high, which affects the number of individuals in the population. Additionally, I also find that diversification occurs more with higher evolutionary

Published
2022

180. Libro Blanco Reforma tributaria

Author

Jesus Ruiz-Huertas Carbonell, Instituto de Estudios Fiscales, Pablos Escobar, Laura De, Ruiz Huertas, Jesus, Canto, Olga, Lago, Santiago, Adame, Francisco, Agullo, Antonia, Labandeira, Xavier, Ruiz Almendral, Violeta, Lopez, Guillem, Soler, Teresa, Moreno, Saturnina, Lopez, David, Lopez, Julio, Diaz de Serralde, Santiago, Jesus Ruiz-Huertas Carbonell, Instituto de Estudios Fiscales, Pablos Escobar, Laura De, Ruiz Huertas, Jesus, Canto, Olga, Lago, Santiago, Adame, Francisco, Agullo, Antonia, Labandeira, Xavier, Ruiz Almendral, Violeta, Lopez, Guillem, Soler, Teresa, Moreno, Saturnina, Lopez, David, Lopez, Julio, and Diaz de Serralde, Santiago

Abstract

Análisis técnico de las posibles reformas a introducir en nuestros principales impuestos

Published
2022

191. JURISPRUDENCIA ESPAÑOLA Y COMUNITARIA DE DERECHO INTERNACIONAL PRIVADO

Author

Álvarez González, Santiago, García López, Julio A., Palao Moreno, Guillermo, Requejo Isidro, Marta, Fuentes Camacho, Víctor, Villafruela Chaves, Paloma, Maseda Rodríguez, Javier, Guzmán Zapater, Mónica, Fach Gómez, Katia, Herranz Ballesteros, Mónica, Espiniella Menéndez, Ángel, Elvira Benayas, María Jesús, Carballo Piñeiro, Laura, Garau Sobrino, Federico F., Rodríguez Pineau, Elena, Abarca Junco, Ana Paloma, Vargas Gómez-Urrutia, Marina, Heredia Cervantes, Iván, Michinel Álvarez, Miguel Ángel, Quiñones Escámes, Ana, Esteban de la Rosa, Gloria, and Font i Segura, Albert

Published
2004

194. JURISPRUDENCIA ESPAÑOLA Y COMUNITARIA DE DERECHO INTERNACIONAL PRIVADO

Author

Álvarez González, Santiago, Palao Moreno, Guillermo, Michinel Álvarez, Miguel Ángel, García López, Julio A., Espiniella Menéndez, Ángel, Aguilar Grieder, Hilda, Requejo Isidro, Marta, Fontanellas i Morell, Josep M., Arenas García, Rafael, de los Mozos, P. Orejudo Prieto, Otero García-Castrillón, Carmen, del Mar Oña López, María, Carballo Piñeiro, Laura, and Font i Segura, Albert

Published
2003

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