122 results on '"Ojeda Javier"'
Search Results
2. Análisis cinemático de las fases del sprint en jugadores juveniles de fútbol
- Author
-
Rueda Ojeda, Javier, Díaz Castañeda, Alejandro, Rueda Ojeda, Javier, and Díaz Castañeda, Alejandro
- Abstract
En el fútbol, el sprint es considerado una de las acciones más importantes y determinantes en el juego siendo la acción que da lugar a más situaciones de gol. El objetivo principal de este Trabajo de Fin de Grado es analizar y comparar las distintas variables cinemáticas que se dan en las dos fases del sprint, la primera fase de arrancada o de aceleración y la segunda fase de lanzada o máxima velocidad. Participaron un total de 19 jugadores masculinos de las categorías inferiores de la Agrupación Deportiva Alcorcón ninguno de los cuales presentaba lesiones en el miembro inferior. Realizamos un único test en el cual se midieron dos fases del sprint, la arrancada y la lanzada. La zona de medida estaba formada por dos picas situadas a 10 metros de distancia. Cada jugador realizó 4 repeticiones del test en el terreno de juego y en las mismas condiciones. Los resultados indicaron que la fase de la lanzada obtiene mayores porcentajes de diferencia en las variables cinemáticas medidas con respecto a la fase de la arrancada excepto en el tiempo de paso y el tiempo de apoyo. En cuanto a las posiciones, según los valores analizados los mediocentro son la posición más rápida de campo sin contar a los porteros. Con respecto a la pierna derecha o izquierda no se encontraron diferencias a excepción de la longitud de zancada y la distancia de vuelo donde encontramos la mayor diferencia a favor de la pierna izquierda que obtuvo mayores valores que la pierna derecha tanto en la fase de la arrancada como en la fase de la lanzada.
- Published
- 2024
3. Intervención para la concienciación en secundaria con respecto a la obesidad
- Author
-
Rueda Ojeda, Javier, Carmona Velasco, Enrique, Rueda Ojeda, Javier, and Carmona Velasco, Enrique
- Abstract
El presente Trabajo Fin de Grado consiste en una propuesta didáctica para llevar a cabo en el curso de 3º de ESO. El principal objetivo es plantear una propuesta de intervención para abordar la prevención del sobrepeso y la obesidad desde la educación física. Dicha propuesta consta de 12 sesiones con las que se pretende formar a estudiantes y familias acerca del sobrepeso y/u obesidad y concienciar al alumnado sobre la prevención de la obesidad. Igualmente se busca mejorar la autoestima de aquellos estudiantes que tengan problemas de sobrepeso u obesidad y mostrarles ejemplos de cómo pueden integrar la actividad física en su día día, de una forma lúdica y realizando las adaptaciones necesarias según sus necesidades. La Educación Física en el mejor vehículo para trabajar situaciones de este tipo y fomentar los hábitos saludables entre los más jóvenes. Desde los centros educativos se han de priorizar iniciativas como el proyecto anual que aquí se presenta.
- Published
- 2024
4. Supervised learning for improving the accuracy of robot-mounted 3D camera applied to human gait analysis
- Author
-
Guffanti Martínez, Diego, Brunete González, Alberto, Hernando Gutiérrez, Miguel, Álvarez Sánchez, David, Rueda Ojeda, Javier, Navarro Cabello, Enrique, Guffanti Martínez, Diego, Brunete González, Alberto, Hernando Gutiérrez, Miguel, Álvarez Sánchez, David, Rueda Ojeda, Javier, and Navarro Cabello, Enrique
- Abstract
Background and Objective: the use of 3D cameras for gait analysis has been highly questioned due to the low accuracy they have demonstrated in the past. The objective of the study presented in this paper is to improve the accuracy of the estimations made by robot-mounted 3D cameras in human gait analysis by applying a supervised learning stage. Methods: the 3D camera was mounted in a mobile robot to obtain a longer walking distance. This study shows an improvement in detection of kinematic gait signals and gait descriptors by post-processing the raw estimations of the camera using artificial neural networks trained with the data obtained from a certified Vicon system. To achieve this, 37 healthy participants were recruited and data of 207 gait sequences were collected using an Orbbec Astra 3D camera. There are two basic possible approaches for training and both have been studied in order to see which one achieves a better result. The artificial neural network can be trained either to obtain more accurate kinematic gait signals or to improve the gait descriptors obtained after initial processing. The former seeks to improve the waveforms of kinematic gait signals by reducing the error and increasing the correlation with respect to the Vicon system. The second is a more direct approach, focusing on training the artificial neural networks using gait descriptors directly. Results: the accuracy of the 3D camera to objectify human gait was measured before and after training. In both training approaches, a considerable improvement was observed. Kinematic gait signals showed lower errors and higher correlations with respect to the ground truth. The accuracy of the system to detect gait descriptors also showed a substantial improvement, mostly for kinematic descriptors rather than spatio-temporal. When comparing both training approaches, it was not possible to define which was the absolute best. Conclusions: supervised learning improves the accuracy of 3D cameras but the sel
- Published
- 2024
5. Andrographolide Inhibits Expression of NLPR3 Inflammasome in Canine Mononuclear Leukocytes.
- Author
-
Albornoz, Alejandro, Pardo, Bibiana, Apaoblaza, Sofia, Henriquez, Claudio, Ojeda, Javier, Uberti, Benjamín, Hancke, Juan, Burgos, Rafael A., and Moran, Gabriel
- Subjects
NLRP3 protein ,GENE expression ,INFLAMMASOMES ,BLOOD cells ,CYTOTOXINS - Abstract
Simple Summary: Inflammasomes are intricate protein complexes initiating caspase-1 activation, resulting in the release of inflammatory cytokines and pyroptosis. In canines, the conserved NLRP3 gene and observed caspase-1/4 activity implicate the NLRP3 inflammasome in specific inflammatory ailments. Andrographolide, sourced from Andrographis paniculate, exhibits diverse biological effects, notably antioxidant and anti-inflammatory properties, with clinical studies hinting at its therapeutic potential across various diseases. This study seeks to explore andrographolide's impact on gene expression linked to the NLRP3 inflammasome and cytokines in canine blood cells. The findings indicate that andrographolide diminishes the expression of NLRP3, caspase-1/4, IL-1β, IL-18, and proinflammatory cytokines, alongside reducing IL-1β secretion. This underscores andrographolide's ability to impede inflammasome activation, thereby mitigating inflammation. Nonetheless, further research is imperative to comprehensively unravel its mechanisms and therapeutic efficacy concerning canine inflammatory conditions. Inflammasomes are multiprotein complexes that trigger processes through caspase-1 activation, leading to the maturation of proinflammatory cytokines, such as IL-1β and IL-18. The gene encoding the inflammasome stimulatory protein NLRP3 is conserved in canines. Caspase-1/4 homologues have been identified in multiple carnivores, including canines, and caspase-1 activity has been shown in humans. The NLRP3 inflammasome has also been described in some canine inflammatory diseases. Andrographolide, a labdane diterpene, is the principal active ingredient in the herb Andrographis paniculate. The objective of this study was to determine the effect of andrographolide on the gene expression of the components of the NLRP3 inflammasome, proinflammatory cytokines, and IL-1β secretion in canine peripheral blood mononuclear cells. For this, MTT assays and real-time PCR were employed to assess the cytotoxicity and gene expression. Further, an ELISA test was performed to measure the IL-1β concentration. The findings reveal that andrographolide significantly reduces the expression of NLRP3, caspase-1/4, IL-1β, and IL-18. Additionally, it decreases the secretion of IL-1β and other proinflammatory cytokines, including IL-6, IL-8, and TNF-α. The results show that andrographolide decreases the expression of NLRP3, caspase-1/4, IL-1β, and IL-18. Andrographolide also reduces proinflammatory cytokines expression, and decreases IL-1β secretion. This indicates that andrographolide can interfere with the activation and function of the inflammasome, resulting in a decrease in the inflammatory response in canines. Research in this area is still budding, and more studies are necessary to fully understand andrographolide's mechanisms of action and its therapeutic potential in relation to the NLRP3 inflammasome in dogs. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. Analysis of DC-Link Low-Frequency Current Harmonics in Multi-Source Multi-Three-Phase Electric Drives.
- Author
-
Lai, Yiyu, Cizeron, Antoine, Voldoire, Adrien, Ojeda, Javier, and Béthoux, Olivier
- Subjects
ELECTRIC drives ,PERMANENT magnet motors ,MAGNETIC coupling ,MAGNETIC declination - Abstract
In a multi-source permanent magnet synchronous motor (PMSM) drive, three distinct winding structures can be implemented: multi-sector, multi-three-phase, and highly coupled. However, due to variations in the magnetic coupling between windings, their low-frequency DC-link current ripple components differ. This paper presents a method to identify the phenomena associated with each low-frequency harmonic content. Three analytical models are developed for the DC current ripple induced by unbalanced winding, counter-electromotive force (back-EMF) harmonics and aliasing effects, respectively, with the results validated through simulations. Experimental validation is conducted for highly coupled winding drives, demonstrating agreement with the analytical models and simulations. The maximum DC current ripple ratio found in the analytical model, the simulation and the experiments is less than 15 % , which is deemed acceptable for motor drive applications. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. Control of a Segmented Three-Phase Synchronous Motor With Highly Coupled Subwindings
- Author
-
Cizeron, Antoine, primary, Ojeda, Javier, additional, Monmasson, Eric, additional, and Bethoux, Olivier, additional
- Published
- 2023
- Full Text
- View/download PDF
8. Global quieting of high-frequency seismic noise due to COVID-19 pandemic lockdown measures
- Author
-
Royal Society (UK), German Research Centre for Geosciences, Boğaziçi Üniversity, Netherlands Organization for Scientific Research, Air Force Office of Scientific Research (US), National Science Foundation (US), Consejo Nacional de Ciencia y Tecnología (México), Universidad Nacional Autónoma de México, Agencia Nacional de Investigación y Desarrollo (Chile), Natural Environment Research Council (UK), University of California, Commonwealth Scientific and Industrial Research Organisation (Australia), Belgian Science Policy Office, Fonds National de la Recherche Luxembourg, Lecocq, Thomas [0000-0002-4988-6477], Hicks, Stephen [0000-0002-7476-3284], Noten, Koen Van [0000-0001-8933-4426], Wijk, Kasper van [0000-0003-4994-8030], Plaen, Raphael de [0000-0003-3477-2001], Massin, Frédérick [0000-0002-7532-5139], Hillers, Gregor [0000-0003-2341-1892], Apoloner, Maria-Theresia [0000-0002-4006-1284], Arroyo-Solórzano, Mario [0000-0002-1653-2680], Assink, Jelle [0000-0002-4990-6845], Büyükakpınar, Pinar [0000-0001-8461-674X], Cannata, Andrea [0000-0002-0028-5822], Cannavó, Flavio [0000-0001-7550-8579], Carrasco, Sebastián [0000-0002-6207-8757], Caudron, Corentin [0000-0002-3748-0007], Chaves, Esteban [0000-0002-5724-1513], Cornwell, David G. [0000-0002-9843-7811], Craig, David [0000-0001-9414-1725], Diaz, J. [0000-0003-1801-0541], Donner, Stefanie [0000-0001-7351-8079], Evangelidis, Christos [0000-0001-8733-8984], Evers, Läslo [0000-0003-2825-6211], Fernández, Gonzalo A. [0000-0001-8284-9566], Giannopoulos, Dimitrios [0000-0002-8314-0759], Gibbons, Steven J. [0000-0002-7822-0244], Girona, Társilo [0000-0001-6422-0422], Grecu, Bogdan [0000-0002-7662-996X], Grunberg, Marc [0000-0002-1307-7790], Hetényi, Gyorgy [0000-0001-9036-4761], Horleston, Anna [0000-0002-6748-6522], Inza, Adolfo [0000-0001-5381-9042], Irving, Jessica C. E. [0000-0002-0866-8246], Jamalreyhani, Mohammadreza [0000-0003-4181-7175], Kafka, Alan [0000-0001-6643-1602], Labedz, Celeste [0000-0001-7339-2170], Lindsey, Nathaniel [0000-0001-9522-6683], McKinno, Mika [0000-0002-9274-0377], Megies, Tobias [0000-0002-5033-9921], Miller, Meghan [0000-0001-5494-2296], Minarik, William [0000-0001-5509-5543], Moresi, Louis [0000-0003-3685-174X], Márquez-Ramirez, V. H. [0000-0003-1494-2229], Möllhoff, Martin [0000-0003-1848-1554], Nesbitt, Ian M. [0000-0001-5828-6070], Niyogi, Shankho [0000-0002-8362-4569], Ojeda, Javier [0000-0002-7188-8356], Oth, Adrien [0000-0003-4859-6504], Proud, Simon [0000-0003-3880-6774], Retailleau, Lise [0000-0002-0711-4540], Satriano, Claudio [0000-0002-3039-2530], Savage, Martha [0000-0002-2080-0676], Shani-Kadmiel, Shahar [0000-0003-2215-6164], Sleeman,Reinoud [0000-0002-1928-5056], Sokos, Efthimios [0000-0002-7742-7251], Stott, Alexander [0000-0001-6121-705X], Subedi, Shiba [0000-0002-7009-7333], Sørensen, Mathilde [0000-0002-8589-7480], Taira, Taka'aki [0000-0002-6170-797X], Turhan, Fatih [0000-0003-4612-7421], Pluijm, Ben van der [0000-0001-7737-2791], Vergne, Jérôme [0000-0003-1731-9360], Vuorinen, Tommi A. T. [0000-0002-8186-012X], Warren, Tristram [0000-0003-3877-0046], Wassermann, Joachim [0000-0002-4088-1792], Xiao, Han [0000-0001-8727-8053], Lecocq, Thomas, Hicks, Stephen, Noten, Koen Van, Wijk, Kasper van, Koelemeijer, Paula, Plaen, Raphael de, Massin, Frédérick, Hillers, Gregor, Anthony, Robert E., Apoloner, Maria-Theresia, Arroyo-Solórzano, Mario, Assink, Jelle, Büyükakpınar, Pinar, Cannata, Andrea, Cannavó, Flavio, Carrasco, Sebastián, Caudron, Corentin, Chaves, Esteban, Cornwell, David G., Craig, David, Ouden, Olivier F. C. den, Diaz, J., Donner, Stefanie, Evangelidis, Christos, Evers, Läslo, Fauville, Benoit, Fernández, Gonzalo A., Giannopoulos, Dimitrios, Gibbons, Steven J., Girona, Társilo, Grecu, Bogdan, Grunberg, Marc, Hetényi, Gyorgy, Horleston, Anna, Inza, Adolfo, Irving, Jessica C. E., Jamalreyhani, Mohammadreza, Kafka, Alan, Koymans, Mathijs R., Labedz, Celeste, Larose, Eric, Lindsey, Nathaniel, McKinno, Mika, Megies, Tobias, Miller, Meghan, Minarik, William, Moresi, Louis, Márquez-Ramirez, V. H., Möllhoff, Martin, Nesbitt, Ian M., Niyogi, Shankho, Ojeda, Javier, Oth, Adrien, Proud, Simon, Pulli, Jay, Retailleau, Lise, Rintamäki, Annukka E., Satriano, Claudio, Savage, Martha, Shani-Kadmiel, Shahar, Sleeman,Reinoud, Sokos, Efthimios, Stott, Alexander, Subedi, Shiba, Sørensen, Mathilde, Taira, Taka'aki, Tapia, Mar, Turhan, Fatih, Pluijm, Ben van der, Vergne, Jérôme, Vuorinen, Tommi A. T., Warren, Tristram, Wassermann, Joachim, Xiao, Han, Royal Society (UK), German Research Centre for Geosciences, Boğaziçi Üniversity, Netherlands Organization for Scientific Research, Air Force Office of Scientific Research (US), National Science Foundation (US), Consejo Nacional de Ciencia y Tecnología (México), Universidad Nacional Autónoma de México, Agencia Nacional de Investigación y Desarrollo (Chile), Natural Environment Research Council (UK), University of California, Commonwealth Scientific and Industrial Research Organisation (Australia), Belgian Science Policy Office, Fonds National de la Recherche Luxembourg, Lecocq, Thomas [0000-0002-4988-6477], Hicks, Stephen [0000-0002-7476-3284], Noten, Koen Van [0000-0001-8933-4426], Wijk, Kasper van [0000-0003-4994-8030], Plaen, Raphael de [0000-0003-3477-2001], Massin, Frédérick [0000-0002-7532-5139], Hillers, Gregor [0000-0003-2341-1892], Apoloner, Maria-Theresia [0000-0002-4006-1284], Arroyo-Solórzano, Mario [0000-0002-1653-2680], Assink, Jelle [0000-0002-4990-6845], Büyükakpınar, Pinar [0000-0001-8461-674X], Cannata, Andrea [0000-0002-0028-5822], Cannavó, Flavio [0000-0001-7550-8579], Carrasco, Sebastián [0000-0002-6207-8757], Caudron, Corentin [0000-0002-3748-0007], Chaves, Esteban [0000-0002-5724-1513], Cornwell, David G. [0000-0002-9843-7811], Craig, David [0000-0001-9414-1725], Diaz, J. [0000-0003-1801-0541], Donner, Stefanie [0000-0001-7351-8079], Evangelidis, Christos [0000-0001-8733-8984], Evers, Läslo [0000-0003-2825-6211], Fernández, Gonzalo A. [0000-0001-8284-9566], Giannopoulos, Dimitrios [0000-0002-8314-0759], Gibbons, Steven J. [0000-0002-7822-0244], Girona, Társilo [0000-0001-6422-0422], Grecu, Bogdan [0000-0002-7662-996X], Grunberg, Marc [0000-0002-1307-7790], Hetényi, Gyorgy [0000-0001-9036-4761], Horleston, Anna [0000-0002-6748-6522], Inza, Adolfo [0000-0001-5381-9042], Irving, Jessica C. E. [0000-0002-0866-8246], Jamalreyhani, Mohammadreza [0000-0003-4181-7175], Kafka, Alan [0000-0001-6643-1602], Labedz, Celeste [0000-0001-7339-2170], Lindsey, Nathaniel [0000-0001-9522-6683], McKinno, Mika [0000-0002-9274-0377], Megies, Tobias [0000-0002-5033-9921], Miller, Meghan [0000-0001-5494-2296], Minarik, William [0000-0001-5509-5543], Moresi, Louis [0000-0003-3685-174X], Márquez-Ramirez, V. H. [0000-0003-1494-2229], Möllhoff, Martin [0000-0003-1848-1554], Nesbitt, Ian M. [0000-0001-5828-6070], Niyogi, Shankho [0000-0002-8362-4569], Ojeda, Javier [0000-0002-7188-8356], Oth, Adrien [0000-0003-4859-6504], Proud, Simon [0000-0003-3880-6774], Retailleau, Lise [0000-0002-0711-4540], Satriano, Claudio [0000-0002-3039-2530], Savage, Martha [0000-0002-2080-0676], Shani-Kadmiel, Shahar [0000-0003-2215-6164], Sleeman,Reinoud [0000-0002-1928-5056], Sokos, Efthimios [0000-0002-7742-7251], Stott, Alexander [0000-0001-6121-705X], Subedi, Shiba [0000-0002-7009-7333], Sørensen, Mathilde [0000-0002-8589-7480], Taira, Taka'aki [0000-0002-6170-797X], Turhan, Fatih [0000-0003-4612-7421], Pluijm, Ben van der [0000-0001-7737-2791], Vergne, Jérôme [0000-0003-1731-9360], Vuorinen, Tommi A. T. [0000-0002-8186-012X], Warren, Tristram [0000-0003-3877-0046], Wassermann, Joachim [0000-0002-4088-1792], Xiao, Han [0000-0001-8727-8053], Lecocq, Thomas, Hicks, Stephen, Noten, Koen Van, Wijk, Kasper van, Koelemeijer, Paula, Plaen, Raphael de, Massin, Frédérick, Hillers, Gregor, Anthony, Robert E., Apoloner, Maria-Theresia, Arroyo-Solórzano, Mario, Assink, Jelle, Büyükakpınar, Pinar, Cannata, Andrea, Cannavó, Flavio, Carrasco, Sebastián, Caudron, Corentin, Chaves, Esteban, Cornwell, David G., Craig, David, Ouden, Olivier F. C. den, Diaz, J., Donner, Stefanie, Evangelidis, Christos, Evers, Läslo, Fauville, Benoit, Fernández, Gonzalo A., Giannopoulos, Dimitrios, Gibbons, Steven J., Girona, Társilo, Grecu, Bogdan, Grunberg, Marc, Hetényi, Gyorgy, Horleston, Anna, Inza, Adolfo, Irving, Jessica C. E., Jamalreyhani, Mohammadreza, Kafka, Alan, Koymans, Mathijs R., Labedz, Celeste, Larose, Eric, Lindsey, Nathaniel, McKinno, Mika, Megies, Tobias, Miller, Meghan, Minarik, William, Moresi, Louis, Márquez-Ramirez, V. H., Möllhoff, Martin, Nesbitt, Ian M., Niyogi, Shankho, Ojeda, Javier, Oth, Adrien, Proud, Simon, Pulli, Jay, Retailleau, Lise, Rintamäki, Annukka E., Satriano, Claudio, Savage, Martha, Shani-Kadmiel, Shahar, Sleeman,Reinoud, Sokos, Efthimios, Stott, Alexander, Subedi, Shiba, Sørensen, Mathilde, Taira, Taka'aki, Tapia, Mar, Turhan, Fatih, Pluijm, Ben van der, Vergne, Jérôme, Vuorinen, Tommi A. T., Warren, Tristram, Wassermann, Joachim, and Xiao, Han
- Abstract
Human activity causes vibrations that propagate into the ground as high-frequency seismic waves. Measures to mitigate the COVID-19 pandemic caused widespread changes in human activity, leading to a months-long reduction in seismic noise of up to 50%. The 2020 seismic noise quiet period is the longest and most prominent global anthropogenic seismic noise reduction on record. While the reduction is strongest at surface seismometers in populated areas, this seismic quiescence extends for many kilometers radially and hundreds of meters in depth. This provides an opportunity to detect subtle signals from subsurface seismic sources that would have been concealed in noisier times and to benchmark sources of anthropogenic noise. A strong correlation between seismic noise and independent measurements of human mobility suggests that seismology provides an absolute, real-time estimate of population dynamics.
- Published
- 2020
9. El videojuego como fenómeno cultural: perspectiva desde la Información y la Documentación
- Author
-
Cascán de Ojeda, Javier and Bueno de la Fuente, Gema
- Abstract
El videojuego es el fenómeno cultural más importante de las últimas décadas. Lo que comenzó como un medio de entretenimiento más, se ha convertido en una revolución en la cual todos los medios de comunicación quieren estar presentes. Incluso las instituciones españolas han comenzado a reconocer su importancia patrimonial, lo cual se ha comenzado a ver reflejado en la legislación. Este cambio plantea la necesidad de conocer en qué lugar se encuentran los videojuegos para la Información y la Documentación, así como su relevancia para otras disciplinas profesionales, y su presencia en los soportes físico y digital. Las bibliotecas tienen un papel esencial, puesto que en ellas se deberá realizar la labor de preservación de los mismos. También existen otras iniciativas que buscan dar testimonio de nuestra sociedad a través de los videojuegos. Con este trabajo se pretende ahondar en el desarrollo del fenómeno del videojuego y sus consecuencias. Se busca definir los hitos principales de su historia y analizar su expansión por medio de los datos de crecimiento y de entrevistas a representantes de los principales sectores que han sido partícipes del mismo.
- Published
- 2022
10. Federation of European Aquaculture Producers Best practices in the shellfish/fish farming industry. [Presentation at the EATiP/OBPS Best Practices in Aquaculture Workshop, 05 April 2022 (Online)]
- Author
-
Ojeda, Javier and Milhalffy, Szilvia
- Subjects
Fisheries and aquaculture ,Aquaculture - Abstract
Best practice in fish farming is a working method that has been generally accepted as superior to any alternatives because it produces results that are better. Best practices are necessary to improve productivity, to assure competitiveness and apply to all the elements of the fish farming activity, from production to the market. An important element of Best practices is that they are shareable, and associations play a crucial role in spreading them. From this perspective bad practice in a farm not only creates negative externalities but also affects the reputation of the whole sector. Published Current 14.a Methodological commentary/perspect
- Published
- 2022
11. 360º Indoors image processing for 3D model reconstruction
- Author
-
Universitat Politècnica de Catalunya. Departament de Matemàtiques, Silveira, Rodrigo Ignacio, Bisoca Ruiz De Ojeda, Javier, Eguiguren Huerta, Marc, Ali, Sikander, Universitat Politècnica de Catalunya. Departament de Matemàtiques, Silveira, Rodrigo Ignacio, Bisoca Ruiz De Ojeda, Javier, Eguiguren Huerta, Marc, and Ali, Sikander
- Abstract
In this modern age of computer technology we are pushing the unimaginable limits of our reality. One of the human desires with these advances is to digitise the vast amount of information that is present in our reality. An important source of information is the 3-dimensional space in which we live. Especially indoors environments that we frequently occupy, for example, living places. With the proliferation of photographing devices, the development of cheap omnidirectional cameras has been one of the interests. So nowadays it is quite easy to obtain spatial data of interior spaces in form of equirectangular images. In this project we study the problem of 3D Indoors Model Reconstruction from Spherical Images. Though, we study it under perspective based methods as it is possible to perform the conversion from one to other. We first formally specify the problem to be solved. We find many different specifications and describe reconstruction methods for some of them. We choose one specification for our use case. Most of the methods require feature extraction and matching, and then performing multi-view geometry estimation. We continue the study of these methods in the experimentation phase. We propose different hypothesis relevant to different steps, perform experiments and form our conclusions. We finish our work by implementing a very simple system solving this problem, making use of ASIFT feature extractor, FLANN kD-Tree feature matcher, and OpenCV's essential matrix estimation algorithm., En aquesta era moderna de la tecnologia de computadors estem empenyent els líımits inimaginables de la nostra realitat. Una de les aspiracions humanes amb aquests avenços és la digitalització de l’enorme quantitat d’informació present en la nostra realitat. Una de les fonts importants d’informació és l’espai 3-dimensional en el que vivim. Especialment, els entorns interiors que habitem, per exemple, els habitatges. Amb la proliferació dels dispositius fotogràfics, el desenvolupament de càmeres omnidireccionals barates ha estat un dels interessos. Per aquest motiu, avui en dia és molt fàcil obtenir dades espacials dels espais interiors en forma d’imatges equirectangulars. En aquest projecte estudiem el problema de la Reconstrucció de Models 3D d’Interiors a partir d’Imatges Esfèriques. Tanmateix, estudiem el problema fent ús de mètodes basats en la perspectiva ja que és possible fer la conversió d’un a l’altre. En primer lloc, especifiquem formalment el problema a resoldre. A continuació, trobem diverses especificacions i descrivim mètodes de reconstruccions per algunes d’elles. Seleccionem una especificaciò pel nostre cas d’ús. La majoria de mètodes utilitzen feature extraction, feature matching i epipolar geometry. Continuem l’estudi amb la fase d’experimentació. Proposem hipòtesis rellevants a diferents passos, realitzem els experiments i extraiem conclusions. Acabem el treball implementant un sistema simple resolent el problema, fent ús de ASIFT feature extractor, FLANN kD- Tree feature matcher, i l’algorisme d’OpenCV per l’aproximació de la matriu essencial, En esta era moderna de tecnología de computadores estamos empujando los límites inimaginables de nuestra realidad. Una de las aspiraciones humanas con estos avances es la digitalización de la tremenda cantidad de información presente en nuestra realidad. Una de las importantes fuentes de información es el espacio 3-dimensional en que vivimos. Especialmente los entornos interiores que habitamos, por ejemplo, las viviendas. Con la proliferación de los dispositivos fotográficos, el desarrollo de cámaras omnidireccionales baratas ha sido uno de los intereses. Por ello, hoy en día es muy fácil de obtener datos espaciales de los espacios interiores en forma de imágenes equirectangulares. En este proyecto estudiamos el problema de Reconstrucción de Modelos 3D de Interiores desde Imágenes Esféricas. Sin embargo, estudiamos el problema bajo métodos basados en la perspectiva ya que es posible hacer la conversión de uno al otro. Primero especificamos formalmente el problema a resolver. Encontramos distintas especificaciones y describimos métodos de reconstruccion para algunas de ellas. Seleccionamos una especificación para nuestro caso de uso. La mayoría de métodos utilizan feature extraction, feature matching, y epipolar geometry. Continuamos el estudio en la fase de experimentación. Proponemos hipótesis relevantes a diferentes pasos, realizamos los experimentos y sacamos conclusiones. Acabamos el trabajo implementando un sistema simple resolviendo el problema, haciendo uso de ASIFT feature extractor, FLANN kD-Tree feature matcher, y el algoritmo de OpenCV para la aproximación de la matriz esencial.
- Published
- 2021
12. Seismic noise variability as an indicator of urban mobility during the COVID-19 pandemic in the Santiago metropolitan region, Chile
- Author
-
Ojeda, Javier, primary and Ruiz, Sergio, additional
- Published
- 2021
- Full Text
- View/download PDF
13. Estudio del Perfil NACA0012 a través de Aerodinámica Experimental
- Author
-
Pérez Ojeda, Javier, Universitat Politècnica de Catalunya. Departament de Física, Lizandra Dalmases, José Oriol, and Soria Guerrero, Manel
- Subjects
Aerodynamics ,Aerodinàmica ,Aeronàutica i espai::Aerodinàmica [Àrees temàtiques de la UPC] ,Enginyeria mecànica::Mecànica de fluids [Àrees temàtiques de la UPC] - Published
- 2020
14. Influencia del paisaje en las cortas de protección en bosques de Nothofagus pumilio en Tierra del Fuego, Argentina: Cambios en la estructura forestal y respuesta de la regeneración
- Author
-
Paredes, Dardo, Cellini, Juan Manuel, Lencinas, Maria Vanessa, Parodi, Martin, Quiroz, Daniel, Ojeda, Javier, Farina, Sebastian, Rosas, Yamina Micaela, and Martínez Pastur, Guillermo
- Subjects
Regeneración natural ,Browsing ,Abiotic damage ,Ramoneo ,Dinámica forestal ,Remnant forest canopy ,Ciencias Agrarias ,Natural regeneration ,Forest dynamics ,Dosel remanente ,Daños abióticos - Abstract
During the last thirty years, shelterwood cuts has been the most applied regeneration method inNothofagus pumilio(lenga) forests. This treatment was implemented without any consideration of the landscape, and without considering yield gradients (e.g.stand site qualities), environmental restrictions (e.g.soil water availability) or potential natural disturbance factors (e.g.wind exposure). The objective was to evaluate the dynamics of the remnant forest structure and the natural regeneration 10 years after harvesting across the landscape considering different environmental gradients. Sampling plots were established in nine stands distributed across Tierra del Fuego, Argentina (north, east and south areas) where forestry activity has been concentrated during the last years. The selected areas presented differences in the rainfall regime (402 to 446 mm yr-1) and site qualities of the stands (2.6 to 3.3). Forest structure was similar among the studied areas, nevertheless harvesting intensity was variable (30 % to 57 %) generating different remnant basal areas (BA) (22 to 47 m² ha-1) and woody debris accumulation in the forest floor (167 to 230 m³ ha-1) after harvesting, or in combination with local wind-throws. The current forest structure presented differences in BA (6 to 34 m² ha-1) and established regeneration (49 to 110 thousand ha-1) that varied in height (0.6 to 1.0 m) and growth (4.1 to 12.8 cm yr-1) according to the area and the received damage due to abiotic and biotic factors. We can conclude that forests located along the considered landscapes and environmental gradients differentially responded to the proposed silvicultural treatments, where climate influenced over the post-harvest canopy stability and the established regeneration. For this, it is mandatory to define different silvicultural strategies throughout the landscape., El método de regeneración más aplicado en bosques deNothofagus pumilio(lenga) es la corta de protección. Este tratamiento se implementó sin consideración del paisaje o gradientes de productividad (ej. calidad de sitio), restricciones ambientales (ej. humedad del suelo) o factores de disturbio (ej. viento). El objetivo fue evaluar la dinámica de la estructura forestal remanente y la respuesta de la regeneración luego de 10 años de cosecha en el paisaje considerando gradientes ambientales. Se establecieron parcelas en nueve rodales en distintos sectores de Tierra del Fuego, Argentina (norte, este y sur) donde se concentra la actividad forestal. Las zonas seleccionadas presentan diferencias en el régimen hídrico (402 a 446 mm año-1) y calidades de sitio (2,6 a 3,3). La estructura forestal fue similar entre zonas, pero las intensidades de corta fue variable (30% a 57%) generando diferentes áreas basales (AB) remanentes (22 a 47 m2ha-1) y residuos forestales (167 a 230 m3ha-1) luego de la cosecha o por volteos de viento. La estructura forestal actual presenta diferencias en AB (6 a 34 m2ha-1) y regeneración instalada (49 a 110 miles ha-1) variando en altura (0,6 a 1,0 m) y crecimiento (4,1 a 12,8 cm año-1) por zona y daños recibidos (abióticos y bióticos). Concluimos que los bosques responden diferencialmente a los tratamientos silvícola en los paisajes y gradientes ambientales analizados, donde el clima influye en la estabilidad del dosel y la regeneración. En consecuencia, se hace necesario establecer estrategias silvícolas diferenciales a lo largo del paisaje.
- Published
- 2020
15. Global quieting of high-frequency seismic noise due to COVID-19 pandemic lockdown measures
- Author
-
Lecocq, Thomas, Hicks, Stephen P., Van Noten, Koen, van Wijk, Kasper, Koelemeijer, Paula, De Plaen, Raphael S. M., Massin, Frederick, Hillers, Gregor, Anthony, Robert E., Apoloner, Maria-Theresia, Arroyo-Solorzano, Mario, Assink, Jelle D., Bueyuekakpinar, Pinar, Cannata, Andrea, Cannavo, Flavio, Carrasco, Sebastian, Caudron, Corentin, Chaves, Esteban J., Cornwell, David G., Craig, David, den Ouden, Olivier F. C., Diaz, Jordi, Donner, Stefanie, Evangelidis, Christos P., Evers, Laslo, Fauville, Benoit, Fernandez, Gonzalo A., Giannopoulos, Dimitrios, Gibbons, Steven J., Girona, Tarsilo, Grecu, Bogdan, Grunberg, Marc, Hetenyi, Gyorgy, Horleston, Anna, Inza, Adolfo, Irving, Jessica C. E., Jamalreyhani, Mohammadreza, Kafka, Alan, Koymans, Mathijs R., Labedz, Celeste R., Larose, Eric, Lindsey, Nathaniel J., McKinnon, Mika, Megies, Tobias, Miller, Meghan S., Minarik, William, Moresi, Louis, Marquez-Ramirez, Victor H., Mollhoff, Martin, Nesbitt, Ian M., Niyogi, Shankho, Ojeda, Javier, Oth, Adrien, Proud, Simon, Pulli, Jay, Retailleau, Lise, Rintamaki, Annukka E., Satriano, Claudio, Savage, Martha K., Shani-Kadmiel, Shahar, Sleeman, Reinoud, Sokos, Efthimios, Stammler, Klaus, Stott, Alexander E., Subedi, Shiba, Sorensen, Mathilde B., Taira, Taka'aki, Tapia, Mar, Turhan, Fatih, van der Pluijm, Ben, Vanstone, Mark, Vergne, Jerome, Vuorinen, Tommi A. T., Warren, Tristram, Wassermann, Joachim, Xiao, Han, Lecocq, Thomas, Hicks, Stephen P., Van Noten, Koen, van Wijk, Kasper, Koelemeijer, Paula, De Plaen, Raphael S. M., Massin, Frederick, Hillers, Gregor, Anthony, Robert E., Apoloner, Maria-Theresia, Arroyo-Solorzano, Mario, Assink, Jelle D., Bueyuekakpinar, Pinar, Cannata, Andrea, Cannavo, Flavio, Carrasco, Sebastian, Caudron, Corentin, Chaves, Esteban J., Cornwell, David G., Craig, David, den Ouden, Olivier F. C., Diaz, Jordi, Donner, Stefanie, Evangelidis, Christos P., Evers, Laslo, Fauville, Benoit, Fernandez, Gonzalo A., Giannopoulos, Dimitrios, Gibbons, Steven J., Girona, Tarsilo, Grecu, Bogdan, Grunberg, Marc, Hetenyi, Gyorgy, Horleston, Anna, Inza, Adolfo, Irving, Jessica C. E., Jamalreyhani, Mohammadreza, Kafka, Alan, Koymans, Mathijs R., Labedz, Celeste R., Larose, Eric, Lindsey, Nathaniel J., McKinnon, Mika, Megies, Tobias, Miller, Meghan S., Minarik, William, Moresi, Louis, Marquez-Ramirez, Victor H., Mollhoff, Martin, Nesbitt, Ian M., Niyogi, Shankho, Ojeda, Javier, Oth, Adrien, Proud, Simon, Pulli, Jay, Retailleau, Lise, Rintamaki, Annukka E., Satriano, Claudio, Savage, Martha K., Shani-Kadmiel, Shahar, Sleeman, Reinoud, Sokos, Efthimios, Stammler, Klaus, Stott, Alexander E., Subedi, Shiba, Sorensen, Mathilde B., Taira, Taka'aki, Tapia, Mar, Turhan, Fatih, van der Pluijm, Ben, Vanstone, Mark, Vergne, Jerome, Vuorinen, Tommi A. T., Warren, Tristram, Wassermann, Joachim, and Xiao, Han
- Abstract
Human activity causes vibrations that propagate into the ground as high-frequency seismic waves. Measures to mitigate the coronavirus disease 2019 (COVID-19) pandemic caused widespread changes in human activity, leading to a months-long reduction in seismic noise of up to 50%. The 2020 seismic noise quiet period is the longest and most prominent global anthropogenic seismic noise reduction on record. Although the reduction is strongest at surface seismometers in populated areas, this seismic quiescence extends for many kilometers radially and hundreds of meters in depth. This quiet period provides an opportunity to detect subtle signals from subsurface seismic sources that would have been concealed in noisier times and to benchmark sources of anthropogenic noise. A strong correlation between seismic noise and independent measurements of human mobility suggests that seismology provides an absolute, real-time estimate of human activities.
- Published
- 2020
16. Influencia del paisaje en las cortas de protección en bosques de nothofagus pumilio en tierra del fuego, Argentina:Cambios en la estructura forestal y respuesta de la regeneración
- Author
-
Paredes, Dardo, Cellini, Juan Manuel, Lencinas, Maria Vanessa, Parodi, Martin, Quiroz, Daniel, Ojeda, Javier, Farina, Sebastian, Rosas, Yamina Micaela, Pastur, Guillermo Martínez, Paredes, Dardo, Cellini, Juan Manuel, Lencinas, Maria Vanessa, Parodi, Martin, Quiroz, Daniel, Ojeda, Javier, Farina, Sebastian, Rosas, Yamina Micaela, and Pastur, Guillermo Martínez
- Abstract
During the last thirty years, shelterwood cuts has been the most applied regeneration method in Nothofagus pumilio (lenga) forests. This treatment was implemented without any consideration of the landscape, and without considering yield gradients (e.g. stand site qualities), environmental restrictions (e.g. soil water availability) or potential natural disturbance factors (e.g. wind exposure). The objective was to evaluate the dynamics of the remnant forest structure and the natural regeneration 10 years after harvesting across the landscape considering different environmental gradients. Sampling plots were established in nine stands distributed across Tierra del Fuego, Argentina (north, east and south areas) where forestry activity has been concentrated during the last years. The selected areas presented differences in the rainfall regime (402 to 446 mm yr-1) and site qualities of the stands (2.6 to 3.3). Forest structure was similar among the studied areas, nevertheless harvesting intensity was variable (30 % to 57 %) generating different remnant basal areas (BA) (22 to 47 m² ha-1) and woody debris accumulation in the forest floor (167 to 230 m³ ha-1) after harvesting, or in combination with local wind-throws. The current forest structure presented differences in BA (6 to 34 m² ha-1) and established regeneration (49 to 110 thousand ha-1) that varied in height (0.6 to 1.0 m) and growth (4.1 to 12.8 cm yr-1) according to the area and the received damage due to abiotic and biotic factors. We can conclude that forests located along the considered landscapes and environmental gradients differentially responded to the proposed silvicultural treatments, where climate influenced over the post-harvest canopy stability and the established regeneration. For this, it is mandatory to define different silvicultural strategies throughout the landscape.
- Published
- 2020
17. Estudio del Perfil NACA0012 a través de Aerodinámica Experimental
- Author
-
Universitat Politècnica de Catalunya. Departament de Física, Lizandra Dalmases, José Oriol, Soria Guerrero, Manel, Pérez Ojeda, Javier, Universitat Politècnica de Catalunya. Departament de Física, Lizandra Dalmases, José Oriol, Soria Guerrero, Manel, and Pérez Ojeda, Javier
- Published
- 2020
18. Effect of Type of Pregnancy on Transcriptional and Plasma Metabolic Response in Sheep and Its Further Effect on Progeny Lambs
- Author
-
Gallardo Paffetti, María, primary, Cárcamo, Juan, additional, Arias-Darraz, Luis, additional, Alvear, Carlos, additional, and Ojeda, Javier, additional
- Published
- 2020
- Full Text
- View/download PDF
19. Intra Vitam Diagnosis of Neglected Gurltia paralysans Infections in Domestic Cats (Felis catus) by a Commercial Serology Test for Canine Angiostrongylosis and Insights into Clinical and Histopathological Findings—Four-Case Report
- Author
-
Gómez, Marcelo, primary, García, Catalina, additional, Maldonado, Isabel, additional, Pantchev, Nikola, additional, Taubert, Anja, additional, Hermosilla, Carlos, additional, Moroni, Manuel, additional, Muñoz, Pamela, additional, Duran, Alejandra, additional, Mieres, Marcelo, additional, and Ojeda, Javier, additional
- Published
- 2020
- Full Text
- View/download PDF
20. Cats shedding pathogenic Leptospira spp.—An underestimated zoonotic risk?
- Author
-
Dorsch, Roswitha, primary, Ojeda, Javier, additional, Salgado, Miguel, additional, Monti, Gustavo, additional, Collado, Bernadita, additional, Tomckowiack, Camillo, additional, Tejeda, Carlos, additional, Müller, Ananda, additional, Eberhard, Theo, additional, Klaasen, Henricus L. B. M., additional, and Hartmann, Katrin, additional
- Published
- 2020
- Full Text
- View/download PDF
21. Evidence of interspecies transmission of pathogenic leptospira between livestock and a domestic cat dwelling in a dairy cattle farm
- Author
-
Ojeda, Javier, Salgado, Miguel, Encina, Carolina, Santamaria, Camila, and Monti, Gustavo
- Subjects
Feline ,Leptospira ,Infection ,Antibiotic treatment - Abstract
A domestic cat dwelling in a dairy cattle farm with haematuria was referred for a physical examination. The examination showed no abnormalities therefore complementary exams were performed. Leukocytosis with neutrophilia, monocytosis and hyperproteinaemia were detected. The urine analysis showed a bacterial infection without ultrasound findings. Serological titers to Leptospira interrogans serovar Pomona and Autumnalis were detected. Molecular analysis demonstrated the presence of Leptospira spp. in urine. The findings were consistent with subclinical leptospirosis. The cattle herd had evidence of Leptospira infection. The microbiological exams confirmed the presence of the Leptospira spp. in urine and serum. According to the evidence presented in this study, cats that dwell within a dairy farm could play a role in the Leptospira infection epidemiologically. The importance of feline leptospirosis must be evaluated with leptospirosis control in livestock.
- Published
- 2018
22. Prediction of PWM-Induced Current Ripple in Subdivided Stator Windings Using Admittance Analysis
- Author
-
Cizeron, Antoine, primary, Ojeda, Javier, additional, Labouré, Eric, additional, and Béthoux, Olivier, additional
- Published
- 2019
- Full Text
- View/download PDF
23. Electrochemotherapy in the treatment of neoplasms in dogs and cats
- Author
-
Rangel, Marcelo M.M., primary, Luz, Jean C.S., additional, Oliveira, Krishna D., additional, Ojeda, Javier, additional, Freytag, Jennifer O., additional, and Suzuki, Daniela O., additional
- Published
- 2019
- Full Text
- View/download PDF
24. Kinematics of recreational runners with iliotibial band injury
- Author
-
Suárez Luginick, Bruno, Rueda Ojeda, Javier, Collazo García, César, Veiga, Santiago, Navarro Cabello, Enrique, Suárez Luginick, Bruno, Rueda Ojeda, Javier, Collazo García, César, Veiga, Santiago, and Navarro Cabello, Enrique
- Abstract
According to the literature, the risk of developing iliotibial band syndrome (ITBS) is related to the running technique of each runner. The purpose of this study was to investigate whether differences exist in the running technique of runners with ITBS and healthy runners. The sample was composed of 60 recreational runners (30 healthy runners and 30 with ITBS). A 3D kinematic analysis was performed to measure 3D joint angles of the lower limb. Reaction forces in the stance phase of running were also determined. Runners in the ITBS group exhibited significantly lower contact time, knee valgus, peak knee flexion and hip rotation. Of note, gender-based differences were observed. No differences were found between groups in hip adduction angle, tibial internal rotation and foot kinematics. The runners with current ITBS showed an altered kinematic profile. Male and female runners with ITBS showed different alterations in running kinematics. These results suggest that gender should be considered when investigating the biomechanical etiology of ITBS.
- Published
- 2018
25. Banks’ traditional funding sources: opportunities for capital markets
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: 50th ICMA Annual Conference (Madrid)
- Published
- 2018
26. Los bancos centrales y las nuevas tecnologías en el sector financiero
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: Clausura del taller 'La Revolución Fintech'. Organizado por: Garrigues and IEAF-FEF
- Published
- 2018
27. Los retos del sistema financiero
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: Jornada 'Los retos de la banca europea: rentabilidad y modelos de negocio'. Organizado por: Cinco Días y Abanca (Madrid)
- Published
- 2018
28. El reto de la educación financiera
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: Clausura del seminario 'La economía ante el blockchain. Lo que está por venir'. Organizado por: Universidad Internacional Menéndez Pelayo (UIMP) y la Asociación de Periodistas de Información Económica (APIE) (Santander)
- Published
- 2018
29. Computer tomographic imaging in 4 dogs with primary nasal canine transmissible venereal tumor and differing cellular phenotype
- Author
-
Ojeda, Javier, primary, Mieres, Marcelo, additional, Soto, Francisco, additional, Arnes, Verónica, additional, Paredes, Enrique, additional, and Navarrete, María, additional
- Published
- 2018
- Full Text
- View/download PDF
30. Kinematics of recreational runners with iliotibial band injury
- Author
-
Suárez Luginick, Bruno, primary, Rueda Ojeda, Javier, additional, Collazo García, César, additional, Veiga Fernández, Santiago, additional, and Navarro Cabello, Enrique, additional
- Published
- 2018
- Full Text
- View/download PDF
31. Chitosan doped with nanoparticles of copper, nickel and cobalt
- Author
-
Cárdenas Triviño, Galo, Elgueta, Carolina, Vergara González, Luis, Ojeda, Javier, Valenzuela, Ariel, Cruzat Contreras, Christian Americo, Cárdenas Triviño, Galo, Elgueta, Carolina, Vergara González, Luis, Ojeda, Javier, Valenzuela, Ariel, and Cruzat Contreras, Christian Americo
- Abstract
Metal colloids in 2 propanol using nanoparticles (NPs) of copper, nickel and cobalt were prepared by Chemical Liquid Deposition (CLD) method. The resulting colloidal dispersions were characterized by Transmission Electron Microscopy (TEM). The colloids were supported in chitosan. Then, microbiological assays were performed using E. coli and S. aureus in order to determine the bactericide/bacteriostatic activity of nanoparticles (NPs) trapped or chelated with chitosan. Finally, the toxicity of the metal colloids Cu, Ni and Co was tested. Bio-assays were conducted in three different animal species. First of all on earth warms (Eisenia foetida) to evaluate the toxicity and the biocompatibility of chitosan in lactic acid (1% and 0.5%). Secondly bio-assay done in fishes (rainbow trout), the liver toxicity of NPs in vivo was evaluated. Finally, a bio-assay was conducted in Sprange-Dawley rats of 100 g weight, which were injected intraperitoneally with different solutions of chitosan metal colloids. Then, the minimum and maximum concentration were determined for copper, nickel and cobalt. The purpose of the use of chitosan was acting as a carrier for some magnetic NPs, which toxicity would allow to obtain new polymeric materials with potential applications as magnet future drugs carrier.
- Published
- 2017
32. Los retos del sector bancario español
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: Seminario 'La Cuarta revolución. ¿Cómo afecta la agenda digital a la economía y a la industria?. Organizado por: UIMP - APIE (Santander), Incluye versión en inglés
- Published
- 2017
33. La relación con el cliente bancario
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: 13 Encuentro del Sector Bancario 'Una Banca competitiva en una nueva sociedad'. Organizado por: IESE (Madrid), Incluye versión en inglés
- Published
- 2017
34. Bancos, confianza y nuevas tecnologías
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: La banca ante los retos de la regulación, la rentabilidad y la digitalización. VIII Encuentro financiero. Organizado por: Expansión y KPMG, Incluye versión en inglés
- Published
- 2017
35. Retos y oportunidades del sector bancario español. Discurso de apertura
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Evento: 2ª Jornada del XXIV Encuentro del Sector Bancario, 'Un sector en transformación'. Organizado por: ABC, Deloitte y Sociedad de Tasación, Incluye versión en inglés
- Published
- 2017
36. Investigation of irreversible demagnetisation in switched flux permanent magnet machines under short‐circuit conditions
- Author
-
Li, Guang‐Jin, primary, Taras, Petrica, additional, Zhu, Zi‐Qiang, additional, Ojeda, Javier, additional, and Gabsi, Mohamed, additional
- Published
- 2017
- Full Text
- View/download PDF
37. Exploring Genetic Factors Involved in Huntington Disease Age of Onset: E2F2 as a New Potential Modifier Gene
- Author
-
Valcárcel Ocete, Leire, Alkorta Aranburu, Gorka, Iriondo, Mikel, Fullaondo, Asier, García Barcina, María, Fernández García, José Manuel, Lezcano García, Elena, Losada Domingo, Josémaría, Ruiz Ojeda, Javier, De Arcaya, Amaia Álvarez, Pérez Ramos, José María, Roos, Raymund A. C., Nielsen, Jørgen E., Saft, Carsten, Registry, investigators of the European Huntington's Disease Network, Romano, Silvia, Zubiaga, Ana M., and Aguirre, Ana
- Subjects
single nucleotide ,Male ,Candidate gene ,BIOCHEMISTRY AND MOLECULAR BIOLOGY ,lcsh:Medicine ,polymorphism ,Trinucleotide Repeats ,Genotype ,Age of Onset ,lcsh:Science ,genes ,Genetics ,Multidisciplinary ,biology ,phosphorylation ,agricultural and biological sciences (all) ,genetics and molecular biology (all) ,apoptosis ,Exons ,Middle Aged ,Protein HIP1 ,Huntington Disease ,AGRICULTURAL AND BIOLOGICAL SCIENCES ,venezuelan kindreds ,caspase-activated DNASE ,Female ,Research Article ,Adult ,medicine.medical_specialty ,CAG repeat lenght ,NMDA receptor function ,Polymorphism, Single Nucleotide ,Young Adult ,Molecular genetics ,Genetic variation ,medicine ,biochemistry ,Humans ,PCG-1-alpha ,Allele ,medicine (all) ,Alleles ,Aged ,modifier ,mutant huntington ,Genes, Modifier ,MEDICINE ,lcsh:R ,adult ,age of onset ,aged ,alleles ,exons ,female ,genes, modifier ,genotype ,humans ,huntington disease ,male ,middle aged ,trinucleotide repeats ,young adult ,biology.protein ,GRIN2A ,lcsh:Q ,kainate receptors ,Age of onset ,Trinucleotide repeat expansion - Abstract
Age of onset (AO) of Huntington disease (HD) is mainly determined by the length of the CAG repeat expansion (CAGexp) in exon 1 of the HTT gene. Additional genetic variation has been suggested to contribute to AO, although the mechanism by which it could affect AO is presently unknown. The aim of this study is to explore the contribution of candidate genetic factors to HD AO in order to gain insight into the pathogenic mechanisms underlying this disorder. For that purpose, two AO definitions were used: the earliest age with unequivocal signs of HD (earliest AO or eAO), and the first motor symptoms age (motor AO or mAO). Multiple linear regression analyses were performed between genetic variation within 20 candidate genes and eAO or mAO, using DNA and clinical information of 253 HD patients from REGISTRY project. Gene expression analyses were carried out by RT-qPCR with an independent sample of 35 HD patients from Basque Country Hospitals. We found suggestive association signals between HD eAO and/or mAO and genetic variation within the E2F2, ATF7IP, GRIN2A, GRIN2B, LINC01559, HIP1 and GRIK2 genes. Among them, the most significant was the association between eAO and rs2742976, mapping to the promoter region of E2F2 transcription factor. Furthermore, rs2742976 T allele patient carriers exhibited significantly lower lymphocyte E2F2 gene expression, suggesting a possible implication of E2F2-dependent transcriptional activity in HD pathogenesis. Thus, E2F2 emerges as a new potential HD AO modifier factor. This work was supported by Basque Government grants (PE08UN78,09+UEGV096/C01 and IT634-13) received by AA and by University of the Basque Country (UPV/EHU) grant (UFI 11/20) received by AMZ. The European Huntington's Disease Network is funded by CHDI Foundation, Inc. (http://chdifoundation.org/). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
- Published
- 2015
38. Discurso de apertura. III Jornada Security Services : De la reforma del mercado de valores a T2S
- Author
-
Alonso Ruiz-Ojeda, Javier and Alonso Ruiz-Ojeda, Javier
- Abstract
Organizado por: Cecabank y Expansión
- Published
- 2016
39. Design and control of piezoelectric actuators for vibration control of high speed switched reluctance machines
- Author
-
Ojeda, Javier Matias, Ojeda, Javier, Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École normale supérieure - Rennes (ENS Rennes)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de génie électrique de Paris (LGEP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Cachan - ENS Cachan, Mohamed Gabsi, and Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SPI]Engineering Sciences [physics] ,switched reluctance machine ,noise ,[SPI] Engineering Sciences [physics] ,actionneurs piézoélectriques ,piezoelectric ,machine à réluctance variable ,vibration ,control ,contrôle de vibration ,bruit - Abstract
Due to a passive rotor and no need for any magnet, Switched reluctance motors (SRM) provide an attractive alternative for high speed and high temperature applications. However, considering equivalent application and power, the noise generated from this machine is greater than for other machines. A salient rotor and rectangular current shapes increase these noise emissions. Many solutions have been studied in the aim of decreasing noise emissions; these include adapted current shape, optimal stator design or auxiliary coils. In this thesis, an original solution is presented: piezoelectric actuators (PZT, Lead zirconate titanate) are stuck onto an SRM stator and then controlled so as to produce active structural damping., Dans un contexte actuel de diminution des pollutions sonores, et plus particulièrement des pollutions sonores introduites par le fonctionnement des machines électriques, nous avons développé durant cette thèse une méthode originale de réduction des vibrations dans les machines à réluctance variable. Des actionneurs piézoélectriques dimensionnés et placés de manière optimale sur la machine, et contrôlés à partir de la mesure de l'accélération vibratoire d'une ou plusieurs positions de celle-ci, permettent une diminution significative des vibrations. Durant cette thèse l'étude du dimensionnement et du placement de ces actionneurs, leurs contrôles optimaux ainsi que l'étude de l'applicabilité de la méthode de compensation ont été développés.
- Published
- 2009
40. Propuesta de estrategias para mejorar la coherencia y la cohesión de los textos que escriben los estudiantes del primer ciclo medio del colegio luterano Concordia de Valparaíso
- Author
-
Olivares Ojeda, Javier Enrique, Marín Gamé, Isabel, and Facultad de Humanidades y Educación
- Subjects
Subproceso de planificación ,Enseñanza Correctiva ,Métodos de Enseñanza ,Constructivismo (Educación) ,Coherencia ,Chile - Abstract
Tesis (Magíster en Comprensión Lectora y Producción de Textos) Se entrega una propuesta metodológica para mejorar el subproceso de planificación de la escritura a través del desarrollo de una serie de guías que consultan la determinación de la situación retórica para después pasar a la elaboración de ideas, y su jerarquización, organización y estructuración, todo esto con el objeto de mejorar la coherencia y la cohesión de los textos que escriben los estudiantes del Primer Ciclo Medio del Colegio Luterano Concordia de Valparaíso. La propuesta ha sido elaborada, considerando los postulados del Constructivismo en Educación, por lo que supone el trabajo colectivo de todos los agentes educativos, cada uno desde su determinado rol, la revisión y reformulación constantes y la actividad metacognitiva que asegura la efectividad del proceso de escritura, paradigma sobre el cual se construye la propuesta. A methodological proposal is delivered aiming to improve the under-process of planning of writing techniques by means of developing several worksheets containing the description of rhetorical situation, so as to elaborate ideas, as well as organizing them hierarchically, and structuralize them with the intention of improving coherence and cohesion fo texts produced by students from Frist High Scholl Stage of Concordia Lutheran School, Valparaíso. This metholodogist proposal has been built under the wings of the constructivism approach which leads to suppose a collective group work where every education agent assits on revision, reformulation and metacognitive activities that all together guarantee the efficacy of the process of writing.
- Published
- 2014
41. Exploring Genetic Factors Involved in Huntington Disease Age of Onset: E2F2 as a New Potential Modifier Gene
- Author
-
Genética, antropología física y fisiología animal, Genetika,antropologia fisikoa eta animalien fisiologia, Valcárcel Ocete, Leire, Alkorta Aranburu, Gorka, Iriondo Orensanz, Mikel, Fullaondo Elordui-Zapaterieche, Asier, García-Barcina, María, Fernández-García, José Manuel, Lezcano-García, Elena, Losada-Domingo, José María, Ruiz-Ojeda, Javier, Álvarez de Arcaya, Amaia, Pérez- Ramos, José María, Roos, Raymund A. C., Nielsen, Jørgen E., Saft, Carsten, REGISTRY investigators of the European Huntington's Disease Network, Zubiaga Elordieta, Ana María, Aguirre Escobal, Ana Isabel, Genética, antropología física y fisiología animal, Genetika,antropologia fisikoa eta animalien fisiologia, Valcárcel Ocete, Leire, Alkorta Aranburu, Gorka, Iriondo Orensanz, Mikel, Fullaondo Elordui-Zapaterieche, Asier, García-Barcina, María, Fernández-García, José Manuel, Lezcano-García, Elena, Losada-Domingo, José María, Ruiz-Ojeda, Javier, Álvarez de Arcaya, Amaia, Pérez- Ramos, José María, Roos, Raymund A. C., Nielsen, Jørgen E., Saft, Carsten, REGISTRY investigators of the European Huntington's Disease Network, Zubiaga Elordieta, Ana María, and Aguirre Escobal, Ana Isabel
- Abstract
Age of onset (AO) of Huntington disease (HD) is mainly determined by the length of the CAG repeat expansion (CAGexp) in exon 1 of the HTT gene. Additional genetic variation has been suggested to contribute to AO, although the mechanism by which it could affect AO is presently unknown. The aim of this study is to explore the contribution of candidate genetic factors to HD AO in order to gain insight into the pathogenic mechanisms underlying this disorder. For that purpose, two AO definitions were used: the earliest age with unequivocal signs of HD (earliest AO or eAO), and the first motor symptoms age (motor AO or mAO). Multiple linear regression analyses were performed between genetic variation within 20 candidate genes and eAO or mAO, using DNA and clinical information of 253 HD patients from REGISTRY project. Gene expression analyses were carried out by RT-qPCR with an independent sample of 35 HD patients from Basque Country Hospitals. We found suggestive association signals between HD eAO and/or mAO and genetic variation within the E2F2, ATF7IP, GRIN2A, GRIN2B, LINC01559, HIP1 and GRIK2 genes. Among them, the most significant was the association between eAO and rs2742976, mapping to the promoter region of E2F2 transcription factor. Furthermore, rs2742976 T allele patient carriers exhibited significantly lower lymphocyte E2F2 gene expression, suggesting a possible implication of E2F2-dependent transcriptional activity in HD pathogenesis. Thus, E2F2 emerges as a new potential HD AO modifier factor.
- Published
- 2015
42. Comparación de la técnica de carrera entre hombres y mujeres usando fotogrametría 3D
- Author
-
Cordente Martínez, Carlos Alberto, Navarro Cabello, Enrique, Rueda Ojeda, Javier, Cordente Martínez, Carlos Alberto, Navarro Cabello, Enrique, and Rueda Ojeda, Javier
- Abstract
En los últimos años la carrera ha adquirido una enorme importancia como forma de práctica deportiva llegando en España a estar entre las cinco prácticas más habituales. Esto ha provocado que las lesiones relacionadas con la carrera sean mucho más habituales, pero algo ha llamado la atención de varios investigadores, los hombres y las mujeres no sufren las mismas lesiones. Esto lleva a pensar que tanto mujeres como hombres desarrollan patrones de carrera distintos, con la premisa también de que las diferencias antropométricas que existen el miembro inferior entre sexos también repercutirán en la carrera.Los objetivos de este estudio son analizar esas diferencias en la técnica utilizando fotogrametría en tres dimensiones y también comprobar si existen diferencias entre ambas piernas dentro del mismo sujeto. Con los resultados de este estudio se pretende mejorar la calidad del Servicio de Análisis Biomecánico de la Carrera de la UPM y poder dar información mucho más precisa a los sujetos. En este estudio han participado 20 hombres y 9 mujeres y realizaron la prueba a su velocidad de calentamiento, obteniendo por sujeto 4 grabaciones con cada pierna.Los resultados del estudio han sido en su mayoría muy similares a los de estudios anteriores; no se aprecian diferencias en los patrones de carrera del miembro inferior en el plano sagital y las diferencias aparecen en el plano frontal, tanto en la rodilla como en la cadera. Las mujeres obtuvieron una mayor abducción de cadera y los hombres un mayor valgo de rodilla; todas las variables medidas solo durante el apoyo. Se ha llegado a la conclusión de que es necesario planificar los entrenamientos desde su origen teniendo en cuenta cómo afectan las lesiones a uno y otro sexo y que hombres y mujeres también poseen formas de correr distintas, aunque asumir que siempre un sexo va a tener un rasgo característico no concuerda con los resultados de este estudio. También los resultados animan a seguir aumentando la muestra para compr
- Published
- 2015
43. Kinematics of recreational runners with iliotibial band injury.
- Author
-
LUGINICK, BRUNO SUÁREZ, OJEDA, JAVIER RUEDA, GARCÍA, CÉSAR COLLAZO, FERNÁNDEZ, SANTIAGO VEIGA, and CABELLO, ENRIQUE NAVARRO
- Abstract
According to the literature, the risk of developing iliotibial band syndrome (ITBS) is related to the running technique of each runner. The purpose of this study was to investigate whether differences exist in the running technique of runners with ITBS and healthy runners. The sample was composed of 60 recreational runners (30 healthy runners and 30 with ITBS). A 3D kinematic analysis was performed to measure 3D joint angles of the lower limb. Reaction forces in the stance phase of running were also determined. Runners in the ITBS group exhibited significantly lower contact time, knee valgus, peak knee flexion and hip rotation. Of note, gender-based differences were observed. No differences were found between groups in hip adduction angle, tibial internal rotation and foot kinematics. The runners with current ITBS showed an altered kinematic profile. Male and female runners with ITBS showed different alterations in running kinematics. These results suggest that gender should be considered when investigating the biomechanical etiology of ITBS. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
44. Optimal Design and Placement of Piezoelectric Actuators using Genetic Algorithm: Application to Switched Reluctance Machine Noise Reduction
- Author
-
Gabsi Mohamed, Ojeda Javier, Mininger Xavier, and Li Yongdong
- Subjects
Vibration ,Optimal design ,Robustness (computer science) ,Control theory ,Stator ,law ,Computer science ,Noise reduction ,Aerodynamics ,Actuator ,Switched reluctance motor ,law.invention - Abstract
Thanks to a good robustness, an easy production and high performances, switched reluctance machine (SRM) is an interesting drive for electro vehicular applications (Rahman et al., 2000) (Wang et al., 2005) or high speed applications (Kub et al., 2007). However, noise and vibrations generated by the SRM limit its integration. Previous studies on vibration reduction have considered SRM supplied by a pulsed current source. In this context, many solutions have been successfully applied to this problem such as adapted control schemes (Hong, 2002) and optimized stator design (Blaabjerg et al., 1994). However, these methods are less efficient in high speed operation zones. This chapter deals with the optimal placement and design of piezoelectric actuators used to reduce the noise and vibration generated by a SRM. Piezoelectric actuators are stuck on the SRM stator and controlled in order to reduce the generated vibrations. The design and placement are achieved by a genetic algorithm, NSGA II (Deb et al, 2002), with multi contradictory objectives in order to obtain a set of optimal solutions. Considering the number of actuators and the minimization of final displacement energy as contradictory objectives, a set of optima is found and a solution is chosen in order to be experimentally tested on a SRM. In electrical machines, noise and vibrations are mainly due to aerodynamic (Fiedler et al., 2005), mechanical and magnetic issues. Aerodynamic vibrations are due to air displacement along rotating rotor (laminar flow) and vortices (turbulent flow) on SRM air gaps. These vibrations are located on inner surface of SRM stator. Mechanical vibrations are generated by relative movement between machine part and shock inside ball bearing. These vibrations are un-located on SRM. At last, magnetic vibrations are due to permeability gradient and generated on stator air-gap interface. Such sources can excite mechanical resonances of the structure and then generate vibratory displacement on the structure. Each source of noise
- Published
- 2011
45. Modeling and Optimization of a Linear Actuator for a Two-Stage Valve Tappet in an Automotive Engine
- Author
-
Duchaud, Jean-Laurent, primary, Hlioui, Sami, additional, Louf, Francois, additional, Ojeda, Javier, additional, and Gabsi, Mohamed, additional
- Published
- 2015
- Full Text
- View/download PDF
46. The effect of Saccharomyces cerevisiae on digestion and mortality in the volcano rabbit (Romerolagus diazi)
- Author
-
Campos-Morales, Rogelio, primary, Mendoza, Germán D, additional, Ojeda, Javier, additional, Plata, Fernando X, additional, and Martínez, José A, additional
- Published
- 2015
- Full Text
- View/download PDF
47. A New Method of Current Density Distribution for Switched Reluctance Machine to Increase Average output Torque
- Author
-
Li, Guangjin, Ojeda, Javier, Hoang, Emmanuel, Lécrivain, Michel, Gabsi, Mohamed, Systèmes d'Energie pour les Transports et l'Environnement (SATIE SETE), Composants et Systèmes pour l'Energie Electrique (CSEE), Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École normale supérieure - Rennes (ENS Rennes)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École normale supérieure - Rennes (ENS Rennes)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS)-Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS), Sefora, and Li, Guangjin
- Subjects
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism ,Finite Element Model ,[SPI.ELEC] Engineering Sciences [physics]/Electromagnetism ,[SPI.NRJ]Engineering Sciences [physics]/Electric power ,Switching Reluctance Machine ,average torque ,flux in air-gap ,torque ripple ,self and mutual-inductance ,[SPI.NRJ] Engineering Sciences [physics]/Electric power - Abstract
International audience; The electromagnetic performances for two current distribution methods (classical and non-classical) of a 3-phase, 24 stator slots and 16 rotor poles Switching Reluctance Machine (SRM) were compared. The three phases were excited in sinusoidal current mode. The Finite Element Model was used to predict the average torque, the total flux of each phase, the torque ripple, the self and the mutual-inductance of each phase. After the computation, it is shown that the machine with non-classical current distribution has more average torque than the machine with classical current distribution, especially at high current density. Experimental tests have been realized, and a good agreement between the experimental and numerical (FE) results was observed.
- Published
- 2009
48. Comparative Study of Classical and Mutually Coupled Switched Reluctance Motors Using Multiphysics Finite-Element Modeling
- Author
-
Liang, Xiaobin, primary, Li, Guangjin, additional, Ojeda, Javier, additional, Gabsi, Mohamed, additional, and Ren, Zhuoxiang, additional
- Published
- 2014
- Full Text
- View/download PDF
49. Analytical Approach for Mechanical Resonance Frequencies of High-Speed Machines
- Author
-
Boisson, Julien, primary, Louf, Francois, additional, Ojeda, Javier, additional, Mininger, Xavier, additional, and Gabsi, Mohamed, additional
- Published
- 2014
- Full Text
- View/download PDF
50. Low Computational-cost determination of Vibrational Behavior: Application to Five-phase Flux-Switching Permanent-Magnet Motor
- Author
-
Boisson, Julien, primary, Louf, Francois, additional, Ojeda, Javier, additional, Mininger, Xavier, additional, and Gabsi, Mohamed, additional
- Published
- 2014
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.