94 results on '"Vera, María Isabel"'
Search Results
2. ¿Conocemos nuestras carencias? Analicemos el PIB
- Author
-
Rodríguez-Vera, María-Isabel, Palop-Valverde, María, Valencia-Romero, Consuelo, and Alonso-Martín, María-Luisa
- Subjects
DI. Science libraries. ,DK. Health libraries, Medical libraries. ,F. Management. ,J. Technical services in libraries, archives, museum. ,JK. Interlibrary loans. - Abstract
OBJECTIVE: To identify the scientific journals asked by users, not available in Spanish libraries. MATERIAL AND METHODS: We analyzed article applications processed during the years 2012 and 2013 (a period of important budget cuts in many libraries) by the interlending services of four hospitals of the Spanish region Castilla-La Mancha, two of them university hospitals. We identified those article that could not be served through national interlibrary loan, excluding from the sample those that were not served for the following reasons: Erroneous citation or not enough data, user cancellations because of cost or journal being binded at the time of request. RESULTS: Out of a total of 19.159 requests received from our users, we identified 1.033 requests that could not be served, corresponding to 665 journal titles. Problems encountered include: • Old references not covered by current collections • References in rare languages (Chinese, Japanese ...), Only a small core of journals had a certain demand level (there were only 2 with with more that 10 requests). Among them, some titles have been identified that have been rejected by some library and obtained otherwise, usually using the lists of searches. CONCLUSIONS • We believe that the method could be extended to other libraries and would serve to identify certain gaps in our collections that could be solved cooperatively. • Given the dispersion of the titles requested, it could be more advantageous to purchase articles on demand than to subscribe to journals, but we do not have administrative mechanisms that assure us a speedy purchase. • Further updating of collective catalogs is required. • We detected some degree of "variation in practice" that influences the results. • Some requests indicated that users need some training.
- Published
- 2014
3. Effectiveness and Safety of the Sequential Use of a Second and Third Anti-TNF Agent in Patients With Inflammatory Bowel Disease: Results From the Eneida Registry
- Author
-
Casanova, María José, Chaparro, María, Mínguez, Miguel, Ricart, Elena, Taxonera, Carlos, García-López, Santiago, Guardiola, Jordi, López-San Román, Antonio, Iglesias, Eva, Beltrán, Belén, Sicilia, Beatriz, Vera, María Isabel, Hinojosa, Joaquín, Riestra, Sabino, Domènech, Eugeni, Calvet, Xavier, Pérez-Calle, José Lázaro, Martín-Arranz, María Dolores, Aldeguer, Xavier, Rivero, Montserrat, Monfort, David, Barrio, Jesús, Esteve, María, Márquez, Lucía, Lorente, Rufo, García-Planella, Esther, de Castro, Luisa, Bermejo, Fernando, Merino, Olga, Rodríguez-Pérez, Antonio, Martínez-Montiel, Pilar, Van Domselaar, Manuel, Alcaín, Guillermo, Domínguez-Cajal, Manuel, Muñoz, Carmen, Gomollón, Fernando, Fernández-Salazar, Luis, García-Sepulcre, Mariana Fe, Rodríguez-Lago, Iago, Gutiérrez, Ana, Argüelles-Arias, Federico, Rodriguez, Cristina, Rodríguez, Gloria Esther, Bujanda, Luis, Llaó, Jordina, Varela, Pilar, Ramos, Laura, Huguet, José María, Almela, Pedro, Romero, Patricia, Navarro-Llavat, Mercè, Abad, Águeda, Ramírez-de la Piscina, Patricia, Lucendo, Alfredo J, Sesé, Eva, Madrigal, Rosa Eva, Charro, Mara, García-Herola, Antonio, Pajares, Ramón, Khorrami, Sam, and Gisbert, Javier P
- Published
- 2020
- Full Text
- View/download PDF
4. A Phase 2 Study of Tofacitinib, an Oral Janus Kinase Inhibitor, in Patients With Crohn’s Disease
- Author
-
Vermeire, Severine A.R.A., Dewit, Olivier, Peeters, Harald, Stehlik, Jiri, Vanasek, Tomas, Laharie, David, Colombel, Jean Frederic, Bigard, Marc-André, Varga, Marta, Zeher, Margit, Novak, Janos, Hunyady, Bela, Salamon, Agnes, Racz, Istvan, Gionchetti, Paolo, Kohn, Anna, Prantera, Cosimo, Stokkers, P.C.F., Slomka, Maria, Paradowski, Leszek, Arlukowicz, Tomasz, Kuzela, Ladislav, Baricky, Boris, Hlavaty, Tibor, Vera, Maria Isabel, Panes, Julian, Guardiola, Jordi, Probert, Christopher, Shaffer, Jonathan Lionel, Fleisher, Mark, Pruitt, Ronald Edward, Sandborn, William J., Goff, John Sawyer, Weber, John, Bell, Raymond Lloyd, Zwick, Andrew Harrison, Gutierrez, Alexandra, Levine, Robert H., Hanauer, Stephen Brett, Lavelle, Lori Ann, Kottoor, Ravindranath K., Dryden, Gerald Wayne, Jr., Hardi, Robert, Glorioso, David Vaughn, Swaroop, Prabhakar, Lee, Scott D., Patrick, Teressa Joan, Scheinert, Sheldon, Sninsky, Charles A., Katz, Seymour, Noar, Mark D., Gaspari, Michael Marion, Gordon, Glenn L., Dalton, Thomas A., Homoky, Douglas Edward, Kilgore, William Ransom, III, Levien, Joel A., Schneider, Herbert R., Moola, Suleman Abdul, Kruger, Frederik Cornelius, Wright, John P., Aboo, Nazimuddin, Ghosh, Subrata, Vranic, Ivana, Wang, Wenjin, and Niezychowski, Wojciech
- Published
- 2014
- Full Text
- View/download PDF
5. Real-life chromoendoscopy for neoplasia detection and characterisation in long-standing IBD
- Author
-
Carballal, Sabela, Maisterra, Sandra, López-Serrano, Antonio, Gimeno-García, Antonio Z, Vera, María Isabel, Marín-Garbriel, José Carlos, Díaz-Tasende, José, Márquez, Lucía, Álvarez, Marco Antonio, Hernández, Luis, De Castro, Luisa, Gordillo, Jordi, Puig, Ignasi, Vega, Pablo, Bustamante-Balén, Marco, Acevedo, Juan, Peñas, Beatriz, López-Cerón, María, Ricart, Elena, Cuatrecasas, Miriam, Jimeno, Mireya, and Pellisé, María
- Published
- 2018
- Full Text
- View/download PDF
6. Differentially Deregulated MicroRNAs as Novel Biomarkers for Neoplastic Progression in Ulcerative Colitis.
- Author
-
Medicina, Medikuntza, Quintanilla, Isabel, Jung, Gerhard, Jimeno, Mireya, Lozano, Juan José, Sidorova, Julia, Camps, Jordi, Carballal, Sabela, Bujanda Fernández de Pierola, Luis, Vera, María Isabel, Quintero, Enrique, Carrillo Palau, Marta, Cuatrecasas, Miriam, Castells, Antoni, Panés, Julià, Ricart, Elena, Moreira, Leticia, Balaguer, Francesc, Pellisé, María, Medicina, Medikuntza, Quintanilla, Isabel, Jung, Gerhard, Jimeno, Mireya, Lozano, Juan José, Sidorova, Julia, Camps, Jordi, Carballal, Sabela, Bujanda Fernández de Pierola, Luis, Vera, María Isabel, Quintero, Enrique, Carrillo Palau, Marta, Cuatrecasas, Miriam, Castells, Antoni, Panés, Julià, Ricart, Elena, Moreira, Leticia, Balaguer, Francesc, and Pellisé, María
- Abstract
INTRODUCTION: Colorectal cancer (CRC) is a potentially life-threatening complication of long-standing ulcerative colitis (UC). MicroRNAs (miRNA) are epigenetic regulators that have been involved in the development of UC-associated CRC. However, their role as potential mucosal biomarkers of neoplastic progression has not been adequately studied. METHODS: In this study, we analyzed the expression of 96 preselected miRNAs in human formalin-fixed and paraffin-embedded tissue of 52 case biopsies (20 normal mucosa, 20 dysplasia, and 12 UC-associated CRCs) and 50 control biopsies (10 normal mucosa, 21 sporadic adenomas, and 19 sporadic CRCs) by using Custom TaqMan Array Cards. For validation of deregulated miRNAs, we performed individual quantitative real-time polymerase chain reaction in an independent cohort of 50 cases (13 normal mucosa, 25 dysplasia, and 12 UC-associated CRCs) and 46 controls (7 normal mucosa, 19 sporadic adenomas, and 20 sporadic CRCs). RESULTS: Sixty-four miRNAs were found to be differentially deregulated in the UC-associated CRC sequence. Eight of these miRNAs were chosen for further validation. We confirmed miR-31, -106a, and -135b to be significantly deregulated between normal mucosa and dysplasia, as well as across the UC-associated CRC sequence (all P < 0.01). Notably, these miRNAs also confirmed to have a significant differential expression compared with sporadic CRC (all P < 0.05). DISCUSSION: UC-associated and sporadic CRCs have distinct miRNA expression patterns, and some miRNAs indicate early neoplastic progression.
- Published
- 2022
7. Nursing resources and responsibilities according to hospital organizational model for management of inflammatory bowel disease in Spain
- Author
-
Marín, Laura, Torrejón, Antonio, Oltra, Lorena, Seoane, Montserrat, Hernández-Sampelayo, Paloma, Vera, María Isabel, Casellas, Francesc, Alfaro, Noelia, Lázaro, Pablo, and García-Sánchez, Valle
- Published
- 2011
- Full Text
- View/download PDF
8. Management and Long-term Outcomes of Crohn’s Disease Complicated with Enterocutaneous Fistula: ECUFIT Study from GETECCU
- Author
-
Barreiro-de Acosta, Manuel, primary, Riestra, Sabino, additional, Calafat, Margalida, additional, Soto, María Pilar, additional, Calvo, Marta, additional, Sánchez Rodríguez, Eugenia, additional, Caballol, Berta, additional, Vela, Milagros, additional, Rivero, Montserrat, additional, Muñoz, Fernando, additional, de Castro, Luisa, additional, Calvet, Xavier, additional, García-Alonso, Francisco Javier, additional, Utrilla Fornals, Alejandra, additional, Ferreiro-Iglesias, Rocío, additional, González-Muñoza, Carlos, additional, Chaparro, María, additional, Bujanda, Luis, additional, Sicilia, Beatriz, additional, Alfambra, Erika, additional, Rodríguez, Andrés, additional, Pérez Fernández, Rubén, additional, Rodríguez, Cristina, additional, Almela, Pedro, additional, Argüelles, Federico, additional, Busquets, David, additional, Tamarit-Sebastián, Sonsoles, additional, Reygosa Castro, Cristina, additional, Jiménez, Laura, additional, Marín-Jiménez, Ignacio, additional, Alcaide, Noelia, additional, Fernández-Salgado, Estela, additional, Iglesias, Águeda, additional, Ponferrada, Ángel, additional, Pajares, Ramón, additional, Roncero, Óscar, additional, Morales-Alvarado, Víctor Jair, additional, Ispízua-Madariaga, Nahia, additional, Sáinz, Empar, additional, Merino, Olga, additional, Márquez-Mosquera, Lucía, additional, García-Sepulcre, Mariana, additional, Elorza, Ainara, additional, Estrecha, Sandra, additional, Surís, Gerard, additional, Van Domselaar, Manuel, additional, Brotons, Alicia, additional, de Francisco, Ruth, additional, Cañete, Fiorella, additional, Iglesias, Eva, additional, Vera, María Isabel, additional, Mesonero, Francisco, additional, Lorente, Rufo, additional, Zabana, Yamile, additional, Cabriada, José Luis, additional, Domènech, Eugeni, additional, and Rodríguez-Lago, Iago, additional
- Published
- 2022
- Full Text
- View/download PDF
9. Timing of Thiopurine or Anti-TNF Initiation Is Associated with the Risk of Major Abdominal Surgery in Crohn’s Disease: A Retrospective Cohort Study
- Author
-
González-Lama, Yago, Suárez, Cristina, González-Partida, Irene, Calvo, Marta, Matallana, Virginia, de la Revilla, Juan, Magaz, Marta, Bernardo, Cristina, Agudo, Belén, Ibarrola, Pilar, Relea, Lucía, Arévalo, Juan, Vera, María Isabel, and Abreu, Luis
- Published
- 2016
- Full Text
- View/download PDF
10. Contribution of nurses to the quality of care in management of inflammatory bowel disease: A synthesis of the evidence
- Author
-
Hernández-Sampelayo, Paloma, Seoane, Montserrat, Oltra, Lorena, Marín, Laura, Torrejón, Antonio, Vera, María Isabel, García, Valle, Lázaro, Pablo, Parody, Elizabeth, Blasco, Antonio J., and Casellas, Francisco
- Published
- 2010
- Full Text
- View/download PDF
11. Gobierno electrónico y contrataciones del Estado en el Ministerio del Interior, 2020
- Author
-
Huamaní Vera, María Isabel and Hurtado Regalado, Gisela Adriana
- Subjects
Modernización del estado ,Perú. Ministerio del Interior ,purl.org/pe-repo/ocde/ford#5.06.02 [http] ,Estado - Contrataciones - Abstract
La presente investigación estuvo dirigida al estudio del gobierno electrónico y las contrataciones del Estado en el Ministerio del Interior, 2020, en la cual se planteó como objetivo, determinar la relación entre el gobierno electrónico y las contrataciones del Estado en el Ministerio del Interior, 2020; en ese sentido para el desarrollo de la investigación se consideró el método hipotético deductivo, con un nivel correlacional causal, dentro del enfoque cuantitativo, y diseño no experimental con corte transversal. Para el trabajo de campo, se tuvo en cuenta a la población que estuvo conformada por los 180 trabajadores del Ministerio del Interior, con una muestra de tipo no probabilística de 30, por lo que para poder realizar la recolección de información se recurrió a la técnica de la encuesta, la misma que fue validada por juicio de expertos, determinándose con 0,8 su confiabilidad mediante el Alfa de Cronbach. Con los resultados obtenidos se llegó a la conclusión que existe alta correlación entre el gobierno electrónico y las contrataciones del Estado en el Ministerio del Interior, 2020. Lima Norte Escuela de Posgrado Reforma y Modernización del Estado
- Published
- 2021
12. Qualitative Study on WIC Program Strategies to Promote Breastfeeding Practices in Puerto Rico: What do Nutritionist/Dietician’s Think?
- Author
-
Ruiz, Migdalia Varela, Arroyo, Hiram, Dávila Torres, René R., Vera, María Isabel Matos, and Reyes Ortiz, Víctor E.
- Published
- 2011
- Full Text
- View/download PDF
13. Mapeo de la situación actual de los centros de detención y tortura en el centro cívico de Santiago de Chile: tras las huellas del olvido de los espacios de violencia
- Author
-
Álamos, Gabriela, primary, Beas, Pilar, primary, Fergnani, Mario, primary, Vera, María Isabel, primary, and Márquez, Felipe, primary
- Published
- 2020
- Full Text
- View/download PDF
14. Plan de Negocios para la Producción y Exportación de Snack de Plátano Orgánico con Aceite de Coco hacia Estados Unidos
- Author
-
Benites Vera, María Isabel and Echeverría, Manuel
- Subjects
ORGÁNICO ,PRODUCCIÓN ,EXPORTACIÓN ,TESIS DE MAESTRÍA ,MEDIO AMBIENTE - Abstract
El plátano es la fruta más popular en el mundo. Se cultiva en aproximadamente en 150 países de los cuales se cultivan millones de toneladas cada año. En la actualidad existen cultivos de plátano orgánico, los mismos tienen gran demanda porque son libres de pesticidas y no contaminan el medio ambiente. La tendencia de una vida salúdale cada día toma más fuerza entre los consumidores lo cual ha permitido que el producto orgánico abran mercados. Se puede decir que el plátano es que es rico en vitaminas y minerales lo cual es considerado como una excelente opción en las comidas o snack. La finalidad de este proyecto es aprovechar esta materia prima que brinda la agricultura ecuatoriana y crear un snack de plátano orgánico con aceite de coco para un mercado donde consumir alimentos saludables y orgánicos son una necesidad, debido al alto grado de obesidad. Así mismo, conseguir un punto de equilibrio entre las ganancias económicas y cuidar el ecosistema, fomentando el cultivo de pequeños productores del país. Guayaquil Maestría en Negocios Internacionales con mención en Estrategia Competitiva
- Published
- 2019
15. La programacion. Una propuesta para su elaboracion
- Author
-
Mira, D. Israel and Vera, María Isabel
- Published
- 2006
16. Volumetría de hematomas subdurales en imágenes de tomografía computarizada: métodos abc versus una técnica computacional inteligente
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Borrero, Maryury, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Barrera, Doris, Hernández, Carlos, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar MSc, Juan, Gelvez, Elkin, Contreras, Yudith, and Sáenz, Frank
- Subjects
Segmentation ,Métodos ABC ,Volumetría de hematomas subdurales ,Automatic Intelligent Technique ,Volumetry of subdural hematomas ,Técnica automática inteligente ,ABC Methods ,Segmentación - Abstract
This work evaluates the performance of some methods oriented towards the generation of the volume of four subdural hematomas (SDH), present in multi-layer computed tomography images. To do this, firstly, a reference volume is specified: the volume obtained by a neurosurgeon using the manual planimetric method (MPM); which allows the generation of manual segmentations of space-occupying lesions. In this case, these volumes are matched with the SDH. In parallel, the volumetry of the 4 SDHs is obtained, considering both the original version of the ABC/2 method and two of its variants, identified in this paper as ABC/3 method and 2ABC/3 method. The ABC methods allow the calculation of the volume of the hematoma under the assumption that the SDH has an ellipsoidal shape. In third place, SDH’s are studied through an intelligent automatic technique (SAT) that generates the three-dimensional segmentation of each SDH. Finally, the percentage relative error is calculated as a metric to evaluate the methodologies considered. The results show that the SAT method exhibits the best performance generating an average percentage error of less than 5%. Este trabajo evalúa el rendimiento de algunos métodos orientados a la generación del volumen de cuatro hematomas subdurales (SDH), presentes en imágenes de tomografía computarizada multicapa. Para hacer esto, en primer lugar, se especifica un volumen de referencia: el volumen obtenido por un neurocirujano utilizando el método planimétrico manual (MPM); que permite la generación de segmentaciones manuales de lesiones ocupantes de espacio. En este caso, estos volúmenes se comparan con el SDH. Paralelamente, se obtiene la volumetría de los 4 SDH, considerando tanto la versión original del método ABC / 2 como dos de sus variantes, identificadas en este documento como el método ABC / 3 y el método 2ABC / 3. Los métodos ABC permiten el cálculo del volumen del hematoma bajo el supuesto de que el SDH tiene una forma elipsoidal. En tercer lugar, los SDH se estudian a través de una técnica automática inteligente (SAT) que genera la segmentación tridimensional de cada SDH. Finalmente, el error relativo porcentual se calcula como una métrica para evaluar las metodologías consideradas. Los resultados muestran que el método SAT exhibe el mejor rendimiento generando un porcentaje de error promedio de menos del 5%.
- Published
- 2018
17. Evaluación de métodos para la cuantificación volumétrica de hematomas intracerebrales en imágenes de tomografía computarizada
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Barrera, Doris, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Hernández, Carlos, Vivas, Marisela, Borrero, Maryury, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, Contreras, Yudith, and Sáenz, Frank
- Subjects
Segmentation ,Métodos ABC ,Intracerebral Hematoma Volumetry ,Técnica automática inteligente ,ABC Methods ,Segmentación ,Volumetría de hematomas intracerebrales ,Intelligent Automatic Technique - Abstract
This work evaluates the performance of computational methods aimed at volume generation of five intracerebral hematomas (ICH), present in multi-layer computed tomography images, by means of three complementary steps. First. A ground truth volume or reference volume (RV) is considered. This RV is obtained, by a neurosurgeon, using the manual planimetric method (MPM). In a second step, the volumetry of the 5 ICH’s is obtained considering both the original version of the ABC/2 method and two of its variants, identified in this paper as ABC/3 method and 2ABC/3 method. The ABC methods allow for calculating hematoma volume under the geometric assumption that the ICH has an ellipsoidal shape. In a third step, a smart automatic technique (SAT) is implemented to generate the three-dimensional segmentation of each ICH. In the context of the present work, the expression SAT method is used to refer to the new methodology proposed to calculate the volume of the ICH. In order to evaluate the performance of the SAT, the Dice coefficient (Dc) is used to compare the dilated segmentations of the ICH with the ICH segmentations generated, manually, by a neurosurgeon. Finally, the percentage relative error is calculated as a measure to evaluate the methodologies considered. The results show that the SAT method exhibits the best performance, generating an average percentage error of less than 3%. Este trabajo evalúa el rendimiento de los métodos computacionales dirigidos a la generación de volumen de cinco hematomas intracerebrales (HIC), presentes en imágenes de tomografía computarizada de múltiples capas, por medio de tres pasos complementarios. Primero. Se considera un volumen básico o volumen de referencia (RV). Este RV es obtenido, por un neurocirujano, usando el método planimétrico manual (MPM). En un segundo paso, la volumetría de los 5 ICH se obtiene considerando tanto la versión original del método ABC / 2 como dos de sus variantes, identificadas en este trabajo como el método ABC / 3 y el método 2ABC / 3. Los métodos ABC permiten calcular el volumen del hematoma bajo la suposición geométrica de que el ICH tiene una forma elipsoidal. En un tercer paso, se implementa una técnica automática inteligente (SAT) para generar la segmentación tridimensional de cada ICH. En el contexto del presente trabajo, la expresión método SAT se utiliza para referirse a la nueva metodología propuesta para calcular el volumen del ICH. Para evaluar el rendimiento del SAT, el coeficiente de Dice (Dc) se usa para comparar las segmentaciones dilatadas de la ICH con las segmentaciones ICH generadas, manualmente, por un neurocirujano. Finalmente, el error relativo porcentual se calcula como una medida para evaluar las metodologías consideradas. Los resultados muestran que el método SAT muestra el mejor rendimiento, generando un porcentaje de error promedio de menos del 3%.
- Published
- 2018
18. Segmentación de glioma de bajo grado usando una técnica computacional automática en imágenes de resonancia magnética
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Valbuena, Oscar, Contreras, Yudith, Cuberos, María, Vivas, Marisela, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Hernández, Carlos, Barrera, Doris, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, and Sáenz, Frank
- Subjects
Técnica computacional ,Segmentation ,Tumor cerebral ,Magnetic resonance brain imaging ,Imágenes cerebrales por resonancia magnética ,Low grade glioma ,Computational technique ,Segmentación ,Astrocitoma de grado II ,Cerebral tumor ,Grade II astrocytoma ,Gliomas de bajo grado - Abstract
Through this work we propose a computational technique for the segmentation of a brain tumor, identified as low grade glioma (LGG), specifically grade II astrocytoma, which is present in magnetic resonance images (MRI). This technique consists of 3 stages developed in the three-dimensional domain. They are: pre-processing, segmentation and postprocessing. The percent relative error (PrE) is considered to compare the segmentations of the LGG, generated by a neuro- oncologist manually, with the dilated segmentations of the LGG, obtained automatically. The combination of parameters linked to the lowest PrE, allow establishing the optimal parameters of each computational algorithm that makes up the proposed computational technique. The results allow reporting a PrE of 1.43%, which indicates an excellent correlation between the manual segmentations and those produced by the computational technique developed. Por medio de este trabajo proponemos una técnica computacional para la segmentación de un tumor cerebral, identificado como glioma de bajo grado (LGG), específicamente astrocitoma de grado II, que está presente en imágenes de resonancia magnética (MRI). Esta técnica consiste en 3 etapas desarrolladas en el dominio tridimensional. Ellos son: pre procesamiento, segmentación y post procesamiento. El porcentaje de error relativo (PrE) se considera para comparar las segmentaciones de la LGG, generadas por un neurooncólogo de forma manual, con las segmentaciones dilatadas de la LGG, obtenidas automáticamente. La combinación de parámetros vinculados al PrE más bajo permite establecer los parámetros óptimos de cada algoritmo computacional que compone la técnica computacional propuesta. Los resultados permiten informar un PrE de 1.43%, lo que indica una excelente correlación entre las segmentaciones manuales y las producidas por la técnica computacional desarrollada.
- Published
- 2018
19. Segmentación automática de glioblastoma cerebral usando una técnica computacional inteligente
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Valbuena, Oscar, Hoyos, Diego, Arias, Yeni, Contreras, Yudith, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Vivas, Marisela, Hernández, Carlos, Barrera, Doris, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, and Gelvez, Elkin
- Subjects
Brain Tomography ,Segmentation ,Intelligent Computational Technique ,Tumor cerebral ,Técnica computacional inteligente ,Cerebral Tumor ,Tomografía cerebral ,Segmentación ,Glioblastoma - Abstract
We propose an intelligent computational technique for the image segmentation of a type IV brain tumor, identified as multiform glioblastoma (MGB), which is present in multi-layer computed tomography images. This technique consists of 3 stages developed in the three-dimensional domain. They are: pre-processing, segmentation and validation. During the validation stage, the Dice coefficient (Dc) is considered in order to compare the segmentations of the MGB, obtained automatically, with the segmentations of the MGB generated manually, by a neuro-oncologist. The combination of parameters linked to the highest Dc, allows to establish the optimal parameters of each of the computational algorithms that make up the proposed nonlinear technique. The obtained results allow to report a Dc higher than 0.88, validating a good correlation between the manual segmentations and those produced by the computational technique developed. Proponemos una técnica computacional inteligente para la segmentación de imágenes de un tumor cerebral tipo IV, identificado como glioblastoma multiforme (MGB), que está presente en imágenes de tomografía computarizada de múltiples capas. Esta técnica consiste en 3 etapas desarrolladas en el dominio tridimensional. Ellos son: preprocesamiento, segmentación y validación. Durante la etapa de validación, se considera el coeficiente de dados (Dc) para comparar las segmentaciones del MGB, obtenidas automáticamente, con las segmentaciones del MGB generado manualmente, por un neurooncólogo. La combinación de parámetros vinculados a la mayor Dc permite establecer los parámetros óptimos de cada uno de los algoritmos computacionales que conforman la técnica no lineal propuesta. Los resultados obtenidos permiten informar una Dc superior a 0,88, validando una buena correlación entre las segmentaciones manuales y las producidas por la técnica computacional desarrollada.
- Published
- 2018
20. Digital processing of medical images: application in synthetic cardiac datasets using the CRISP_DM methodology
- Author
-
Contreras, Yudith, Vera, Miguel, Huérfano, Yoleidy, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Barrera, Doris, Hernández, Carlos, Molina, Ángel Valentín, Martínez, Luis Javier, Sáenz, Frank, Vivas, Marisela, Salazar, Juan, and Gelvez, Elkin
- Subjects
Synthetic cardiac images ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,CRISP-DM Methodology ,Computerized tomography ,Noise ,Artifacts - Abstract
In this work an adaptation of the Cross Industry Standard Process for Data Mining (CRISP-DM) methodology, in the context of digital medical image processing is proposed. Specifically, synthetic images reported in the literature are used as numerical phantoms. Construction of the synthetic images was inspired by a detailed analysis of some of the imperfections found in the real multilayer cardiac computed tomography images. Of all the imperfections considered, only Poisson noise was selected and incorporated into a synthetic database. An example is presented in which images contaminated with Poisson noise are processed and then subject to two classical digital smoothing techniques, identified as Gaussian filter and anisotropic diffusion filter. Additionally, the peak of the signal-to-noise ratio (PSNR) is considered as a metric to analyze the performance of these filters.
- Published
- 2018
21. Segmentación automática de un meningioma usando una técnica computacional en imágenes de resonancia magnética
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Molina, Ángel Valentín, Valbuena, Oscar, Vivas, Marisela, Cuberos, María, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Hernández, Carlos, Barrera, Doris, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, Contreras, Yudith, and Sáenz, Frank
- Subjects
Brain tumor ,Técnica computacional ,Segmentation ,Tumor cerebral ,Magnetic resonance brain imaging ,Imágenes cerebrales por resonancia magnética ,Computational technique ,Segmentación ,Meningioma - Abstract
Through this work we propose a computational technique for the segmentation of a brain tumor, identified as meningioma (MGT), which is present in magnetic resonance images (MRI). This technique consists of 3 stages developed in the three-dimensional domain: pre-processing, segmentation and post-processing. The percent relative error (PrE) is considered to compare the segmentations of the MGT, generated by a neuro-oncologist manually, with the dilated segmentations of the MGT, obtained automatically. The combination of parameters linked to the lowest PrE, provides the optimal parameters of each computational algorithm that makes up the proposed computational technique. Results allow reporting a PrE of 1.44%, showing an excellent correlation between the manual segmentations and those produced by the computational technique developed. Este trabajo propone una técnica computacional para la segmentación de un tumor cerebral, identificado como meningioma (MGT), que está presente en imágenes de resonancia magnética (MRI). Esta técnica consta de 3 etapas desarrolladas en el dominio tridimensional: preprocesamiento, segmentación y postprocesamiento. El porcentaje de error relativo (PrE) se considera para comparar las segmentaciones de la MGT, generadas por un neurooncólogo de forma manual, con las segmentaciones dilatadas de la MGT, obtenidas automáticamente. La combinación de parámetros vinculados al PrE más bajo proporciona los parámetros óptimos de cada algoritmo computacional que conforma la técnica de cálculo propuesta. Los resultados permiten informar un PrE de 1.44%, mostrando una excelente correlación entre las segmentaciones manuales y las producidas por la técnica computacional desarrollada.
- Published
- 2018
22. Effectiveness and Safety of the Sequential Use of a Second and Third Anti-TNF Agent in Patients With Inflammatory Bowel Disease: Results From the Eneida Registry
- Author
-
Casanova, María José, primary, Chaparro, María, additional, Mínguez, Miguel, additional, Ricart, Elena, additional, Taxonera, Carlos, additional, García-López, Santiago, additional, Guardiola, Jordi, additional, López-San Román, Antonio, additional, Iglesias, Eva, additional, Beltrán, Belén, additional, Sicilia, Beatriz, additional, Vera, María Isabel, additional, Hinojosa, Joaquín, additional, Riestra, Sabino, additional, Domènech, Eugeni, additional, Calvet, Xavier, additional, Pérez-Calle, José Lázaro, additional, Martín-Arranz, María Dolores, additional, Aldeguer, Xavier, additional, Rivero, Montserrat, additional, Monfort, David, additional, Barrio, Jesús, additional, Esteve, María, additional, Márquez, Lucía, additional, Lorente, Rufo, additional, García-Planella, Esther, additional, de Castro, Luisa, additional, Bermejo, Fernando, additional, Merino, Olga, additional, Rodríguez-Pérez, Antonio, additional, Martínez-Montiel, Pilar, additional, Van Domselaar, Manuel, additional, Alcaín, Guillermo, additional, Domínguez-Cajal, Manuel, additional, Muñoz, Carmen, additional, Gomollón, Fernando, additional, Fernández-Salazar, Luis, additional, García-Sepulcre, Mariana Fe, additional, Rodríguez-Lago, Iago, additional, Gutiérrez, Ana, additional, Argüelles-Arias, Federico, additional, Rodriguez, Cristina, additional, Rodríguez, Gloria Esther, additional, Bujanda, Luis, additional, Llaó, Jordina, additional, Varela, Pilar, additional, Ramos, Laura, additional, Huguet, José María, additional, Almela, Pedro, additional, Romero, Patricia, additional, Navarro-Llavat, Mercè, additional, Abad, Águeda, additional, Ramírez-de la Piscina, Patricia, additional, Lucendo, Alfredo J, additional, Sesé, Eva, additional, Madrigal, Rosa Eva, additional, Charro, Mara, additional, García-Herola, Antonio, additional, Pajares, Ramón, additional, Khorrami, Sam, additional, and Gisbert, Javier P, additional
- Published
- 2019
- Full Text
- View/download PDF
23. Gestión de emprendedores en el Ecuador
- Author
-
Jaime Carriel, Eliott Eduardo, primary, Bowen, José Ricardo, additional, Traverso Holguín, Paola Alexandra, additional, Samaniego López, Jaime Moisés, additional, Benites Vera, María Isabel, additional, Ron Amores, Rafael Eduardo, additional, Alvear González, María Laura, additional, Llanos Encalada, Mónica del Pilar, additional, Vargas Intriago, Jennifer Isabel, additional, Armas Ortega, Yadira Mariuxi, additional, and Tinoco Sotomayor, Carolina Alexandra, additional
- Published
- 2017
- Full Text
- View/download PDF
24. Development of Creative and Educational Thinking in Arts Training Teachers: QR Codes
- Author
-
Moreno Vera, Juan Ramón, López Vera, María Isabel, Vera-Muñoz, Maria Isabel, Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas, Grupo de Investigación Interdisciplinar en Docencia Universitaria (GIDU), and Grupo Interdisciplinario de Estudios Críticos y de América Latina (GIECRYAL)
- Subjects
Mobile Learning ,Collaborative Learning ,Creative thinking ,Training Teachers ,Arts ,Quick Response (QR) Codes ,Didáctica de las Ciencias Sociales - Abstract
A training model on education in Arts based on the design of QR codes as learning objects has been integrated in the formation of training teachers with the objective that they can apply this technology in their future jobs at school. The study was done on a sample of 99 training teachers of the Primary School Teacher of the Faculty of Education of the Alicante University. The sample was divided into 30 groups, which designed QR codes on a selection of works of art belonging to all of the historical ages. The results of this training model turned out as positive as it was expected. Indeed, the training teachers included in this study were able to prepare QR codes as learning objects quite well assessed. At the same time, training teachers showed to have acquired a wider and deeper knowledge of Arts through the use of this technology. Finally this study revealed that the factors that strengthened the training teachers’ formation and increased their motivation the most were interaction, small group work and collaborative learning. Furthermore, training teachers’ knowledge on contents and didactics as well as their critical and creative thinking have improved significantly.
- Published
- 2014
25. Real-life chromoendoscopy for neoplasia detection and characterisation in long-standing IBD
- Author
-
Carballal, Sabela, primary, Maisterra, Sandra, additional, López-Serrano, Antonio, additional, Gimeno-García, Antonio Z, additional, Vera, María Isabel, additional, Marín-Garbriel, José Carlos, additional, Díaz-Tasende, José, additional, Márquez, Lucía, additional, Álvarez, Marco Antonio, additional, Hernández, Luis, additional, De Castro, Luisa, additional, Gordillo, Jordi, additional, Puig, Ignasi, additional, Vega, Pablo, additional, Bustamante-Balén, Marco, additional, Acevedo, Juan, additional, Peñas, Beatriz, additional, López-Cerón, María, additional, Ricart, Elena, additional, Cuatrecasas, Miriam, additional, Jimeno, Mireya, additional, and Pellisé, María, additional
- Published
- 2016
- Full Text
- View/download PDF
26. Development of quality standards in inflammatory bowel disease management and design of an evaluation tool of nursing care
- Author
-
Torrejón, Antonio, Oltra, Lorena, Hernández-Sampelayo, Paloma, Marín, Laura, García-Sánchez, Valle, Casellas, Francesc, Alfaro, Noelia, Lázaro, Pablo, and Vera, María Isabel
- Subjects
Calidad del manejo ,Estándares ,Enfermedad inflamatoria intestinal ,Delphi technique ,Nursing care ,Standard of care ,Total quality management ,Cuidados de enfermería ,Método Delphi ,Inflammatory bowel disease - Abstract
Background and aims: nursing management of inflammatory bowel disease (IBD) is highly relevant for patient care and outcomes. However, there is evidence of substantial variability in clinical practices. The objectives of this study were to develop standards of healthcare quality for nursing management of IBD and elaborate the evaluation tool "Nursing Care Quality in IBD Assessment" (NCQ-IBD) based on these standards. Methods: a 178-item healthcare quality questionnaire was developed based on a systematic review of IBD nursing management literature. The questionnaire was used to perform two 2-round Delphi studies: Delphi A included 27 IBD healthcare professionals and Delphi B involved 12 patients. The NCQ-IBD was developed from the list of items resulting from both Delphi studies combined with the Scientific Committee's expert opinion. Results: the final NCQ-IBD consists of 90 items, organized in 13 sections measuring the following aspects of nursing management of IBD: infrastructure, services, human resources, type of organization, nursing responsibilities, nurse-provided information to the patient, nurses training, annual audits of nursing activities, and nursing research in IBD. Using the NCQ-IBD to evaluate these components allows the rating of healthcare quality for nursing management of IBD into 4 categories: A (highest quality) through D (lowest quality). Conclusions: the use of the NCQ-IBD tool to evaluate nursing management quality of IBD identifies areas in need of improvement and thus contribute to an enhancement of care quality and reduction in clinical practice variations. Introducción y objetivos: el manejo de la enfermedad inflamatoria intestinal (EII) por enfermería es muy relevante, sin embargo, existe una gran variabilidad en su práctica clínica. El objetivo de esta investigación es desarrollar estándares de calidad asistencial del manejo de la EII por enfermería, para elaborar un "Instrumento de Evalua-ción de la Calidad Asistencial de la EII por Enfermería" (IEC-EII). Métodos: tras una búsqueda bibliográfica del manejo de la EII por enfermería se elaboró un cuestionario de 178 ítems de calidad asistencial. Con este cuestionario, se realizaron dos estudios Delphi a dos rondas: Delphi A dirigido a 27 profesionales sanitarios en EII y Delphi B a 12 pacientes. Con los ítems de ambos estudios Delphi, se elaboró una lista que, junto con la opinión experta del Comité Científico, contribuyó a desarrollar el IEC-EII. Resultados: el IEC-EII se compone de 90 ítems, subdivididos en 13 dimensiones que miden aspectos del manejo de la EII por enfermería como: infraestructura, servicios, recursos humanos, tipo de organización, competencias asumidas por enfermería, información de enfermería al paciente, formación de enfermería, revisiones anuales de la actividad de enfermería e investigación de enfermería de EII. La evaluación de estos aspectos mediante el IEC-EII permite clasificar la calidad asistencial en EII por enfermería en 4 categorías de la A a la D. Siendo A el nivel de calidad superior y D el inferior. Conclusiones: el IEC-EII puede contribuir a aumentar la calidad asistencial de enfermería en EII y reducir su variabilidad, puesto que la evaluación ayudará a detectar sus deficiencias mejorables.
- Published
- 2013
27. Proyecto de investigación educativa: la Historia del arte a través de códigos QR
- Author
-
Moreno Vera, Juan Ramón, López Vera, María Isabel, Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas, and Grupo Interdisciplinario de Estudios Críticos y de América Latina (GIECRYAL)
- Subjects
Educación ,Arte ,Didáctica ,Didáctica de las Ciencias Sociales ,Historia ,Código QR - Abstract
En el ámbito de la educación formal las nuevas tecnologías cada vez están cada vez más presentes. En el caso de este proyecto de investigación educativa se ha llevado a cabo una experiencia en la que los alumnos de Bachillerato y Grado debían investigar y crear materiales didácticos sobre Historia del arte a través de códigos QR que les permita acceder a las infinitas posibilidades de información que existen por medio de smartphones y tabletas. La metodología usada ha sido constructivista, siendo necesaria la creación de un blog docente y del uso de generadores de QR para que la información analizada pueda ser trasladada, a la vez que se ha usado una metodología sinéctica en la que el alumno asumiese el rol del profesor, potenciando así su pensamiento creativo como futuro docente. En cuanto a los resultados obtenidos nos hemos encontrado con el gran interés despertado entre los alumnos, de los que hemos recibo algo más de 100 códigos por parte de los alumnos de Grado, y 10 en la clase de Bachillerato. Entre los materiales que han aparecido con mayor asiduidad en los códigos destacamos: texto explicativo sobre las obras, vídeos explicativos, material sonoro, documentales, películas relacionadas, reconstrucciones 3D o incluso imágenes de restauraciones.
- Published
- 2013
28. Low grade glioma segmentation using an automatic computational technique in magnetic resonance imaging.
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Valbuena, Oscar, Contreras, Yudith, Cuberos, María, Vivas, Marisela, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Hernández, Carlos, Barrera, Doris, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, and Sáenz, Frank
- Subjects
MAGNETIC resonance imaging ,IMAGE segmentation ,COMPUTED tomography ,GLIOMAS ,BRAIN tumors - Abstract
Copyright of Archivos Venezolanos de Farmacología y Terapéutica is the property of Archivos Venezolanos de Farmacologia y Terapeutica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
29. Automatic segmentation of a meningioma using a computational technique in magnetic resonance imaging.
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Molina, Ángel Valentín, Valbuena, Oscar, Vivas, Marisela, Cuberos, María, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Hernández, Carlos, Barrera, Doris, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, Contreras, Yudith, and Sáenz, Frank
- Subjects
IMAGE segmentation ,MAGNETIC resonance imaging ,MENINGIOMA ,COMPUTED tomography ,ONCOLOGISTS - Abstract
Copyright of Archivos Venezolanos de Farmacología y Terapéutica is the property of Archivos Venezolanos de Farmacologia y Terapeutica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
30. Automatic segmentation of a cerebral glioblastoma using a smart computational technique.
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Valbuena, Oscar, Hoyos, Diego, Arias, Yeni, Contreras, Yudith, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Vivas, Marisela, Hernández, Carlos, Barrera, Doris, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, and Sáenz, Frank
- Subjects
IMAGE segmentation ,GLIOBLASTOMA multiforme ,BRAIN tumors ,COMPUTED tomography ,ONCOLOGISTS - Abstract
Copyright of Archivos Venezolanos de Farmacología y Terapéutica is the property of Archivos Venezolanos de Farmacologia y Terapeutica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
31. Assessment of methods for volumetric quantification of intracerebral hematomas in computerized tomography images.
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Barrera, Doris, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Hernández, Carlos, Vivas, Marisela, Borrero, Maryury, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, Contreras, Yudith, and Sáenz, Frank
- Subjects
INTRACEREBRAL hematoma ,COMPUTED tomography ,GEOMETRIC analysis ,IMAGE segmentation ,NEUROSURGEONS - Abstract
Copyright of Archivos Venezolanos de Farmacología y Terapéutica is the property of Archivos Venezolanos de Farmacologia y Terapeutica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
32. Automatic segmentation of epidural hematomas using a computational technique based on intelligent operators: a clinical utility.
- Author
-
Salazar, Juan, Vera, Miguel, Huérfano, Yoleidy, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Gelvez, Elkin, Contreras, Yudith, Borrero, Maryury, Vivas, Marisela, Barrera, Doris, Hernández, Carlos, Molina, Ángel Valentín, Martínez, Luis Javier, and Sáenz, Frank
- Subjects
EPIDURAL hematoma ,COMPUTED tomography ,BRAIN imaging ,NEUROSURGEONS ,IMAGE segmentation - Abstract
Copyright of Archivos Venezolanos de Farmacología y Terapéutica is the property of Archivos Venezolanos de Farmacologia y Terapeutica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
33. Volumetry of subdural hematomas in computed tomography images: ABC methods versus an intelligent computational technique.
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Borrero, Maryury, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Barrera, Doris, Hernández, Carlos, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, Contreras, Yudith, and Sáenz, Frank
- Subjects
SUBDURAL hematoma ,COMPUTED tomography ,INTELLIGENT computer terminals ,PLANIMETERS ,IMAGE segmentation - Abstract
Copyright of Archivos Venezolanos de Farmacología y Terapéutica is the property of Archivos Venezolanos de Farmacologia y Terapeutica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
34. Volumetry of epidural hematomas in computed tomography images: Comparative study between linear and volumetric methods.
- Author
-
Vera, Miguel, Huérfano, Yoleidy, Hernández, Carlos, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Barrera, Doris, Borrero, Maryury, Molina, Ángel Valentín, Martínez, Luis Javier, Salazar, Juan, Gelvez, Elkin, Contreras, Yudith, and Saenz, Frank
- Subjects
BRAIN imaging ,BRAIN mapping ,MAGNETIC resonance imaging ,BIOMECHANICS ,MORPHOMETRICS - Abstract
This work evaluates the performance of some methods employed for assessing the volume of seven subdural hematomas (EDH), present in multi-layer computed tomography images. Firstly, a reference volume is considered to be that obtained by a neurosurgeon using the manual planimetric method (MPM). Secondly, the volume of the 7 EDHs is obtained considering both the original version of the ABC/2 method and two of its variants, identified in this paper as ABC/3 method and 2ABC/3 method. The ABC methods allow for calculation of the volume of the hematoma under the assumption that the EDH has an ellipsoidal shape. In third place, an intelligent automatic technique (SAT) is implemented that generates the three-dimensional segmentation of each EDH and from it the volume of the hematoma is calculated. The SAT consists of the pre-processing, segmentation and post-processing stages. In order to make judgments about the performance of the SAT, the Dice coefficient (Dc) is used to compare the dilated segmentations of the EDH with the EDH segmentations generated manually. Finally, the percentage relative error is calculated as a metric to evaluate the methodologies considered. The results show that the SAT method exhibits the best performance generating an average percentage error of less than 2%. [ABSTRACT FROM AUTHOR]
- Published
- 2018
35. Smoothing filters in synthetic cerebral magnetic resonance images: A comparative study.
- Author
-
Gelvez, Elkin, Vera, Miguel, Huérfano, Yoleidy, Valbuena, Oscar, Salazar, Williams, Vera, María Isabel, Borrero, Maryury, Barrera, Doris, Hernández, Carlos, Molina, Ángel Valentín, Martínez, Luis Javier, Sáenz, Frank, Vivas, Marisela, Contreras, Julio, Restrepo, Jorge, Vanegas, Juan, Salazar, Juan, and Contreras, Yudith
- Subjects
MAGNETIC resonance imaging ,COMPUTER simulation ,IMAGE processing ,RICIAN channels ,SIMULATION methods & models - Abstract
Copyright of Revista Latinoamericana de Hipertension is the property of Revista Latinoamericana de Hipertension and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
36. Timing of Thiopurine or Anti-TNF Initiation Is Associated with the Risk of Major Abdominal Surgery in Crohn’s Disease: A Retrospective Cohort Study
- Author
-
González-Lama, Yago, primary, Suárez, Cristina, additional, González-Partida, Irene, additional, Calvo, Marta, additional, Matallana, Virginia, additional, de la Revilla, Juan, additional, Magaz, Marta, additional, Bernardo, Cristina, additional, Agudo, Belén, additional, Ibarrola, Pilar, additional, Relea, Lucía, additional, Arévalo, Juan, additional, Vera, María Isabel, additional, and Abreu, Luis, additional
- Published
- 2015
- Full Text
- View/download PDF
37. Visceral leishmaniasis as an unusual infectious complication in a patient with Crohn's disease treated with infliximab
- Author
-
Hernández, Marta, primary, González-Lama, Yago, additional, Ramos, Antonio, additional, Martínez-Ruiz, Rocío, additional, Calvo, Marta, additional, Matallana, Virginia, additional, Vera, María Isabel, additional, Suarez, Cristina, additional, Blázquez, Isabel, additional, and Abreu, Luis, additional
- Published
- 2015
- Full Text
- View/download PDF
38. Development of Creative and Educational Thinking in Arts Training Teachers: QR Codes
- Author
-
Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas, Moreno Vera, Juan Ramón, López Vera, María Isabel, Vera-Muñoz, Maria Isabel, Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas, Moreno Vera, Juan Ramón, López Vera, María Isabel, and Vera-Muñoz, Maria Isabel
- Abstract
A training model on education in Arts based on the design of QR codes as learning objects has been integrated in the formation of training teachers with the objective that they can apply this technology in their future jobs at school. The study was done on a sample of 99 training teachers of the Primary School Teacher of the Faculty of Education of the Alicante University. The sample was divided into 30 groups, which designed QR codes on a selection of works of art belonging to all of the historical ages. The results of this training model turned out as positive as it was expected. Indeed, the training teachers included in this study were able to prepare QR codes as learning objects quite well assessed. At the same time, training teachers showed to have acquired a wider and deeper knowledge of Arts through the use of this technology. Finally this study revealed that the factors that strengthened the training teachers’ formation and increased their motivation the most were interaction, small group work and collaborative learning. Furthermore, training teachers’ knowledge on contents and didactics as well as their critical and creative thinking have improved significantly.
- Published
- 2014
39. Diseño e implementación de indicadores de gestión bajo la metodología del cuadro de mando integral para la dirección administrativa y financiera de una institución del sector público
- Author
-
Toapanta Vera, María Isabel and Aguirre, Julio
- Subjects
INDICADOR DE GESTIÓN ,ESTRATEGIA ,CUADRO DE MANDO INTEGRAL ,SECTOR PÚBLICO ,ADMINISTRACIÓN Y FINANZAS ,CONTROL DE GESTIÓN - Abstract
This work came up from the need for relying on a tool that enables the entity of non-financial public sector approach to the Directorate of Administration and Finance towards the achievement of objectives aligned to the strategy of the institution by monitoring and regulating management. Its purpose is to characterize the Balanced Scorecard as a Management Control System based on the strategic management of public sector organizations using cascaded application with the Directorate of Administration and Finance. It also means the importance of the existence of a feeding system and feedback effective and efficient decision-making system generated control systems and strategic management through scorecard. The implementation of management indicators for the Resource Management process, the responsibility of the Directorate of Administration and Finance, begins with the analysis of the Scorecard, the highest level of the public institution, being the basis for disaggregating the objectives and align the respective indicators.
- Published
- 2009
40. La arquitectura moderna en Quito, 1960-1970: el detalle constructivo en cuatro edificios emplazados en la avenida 10 de Agosto
- Author
-
López Vera, María Isabel and Hermida Palacios, María Augusta
- Subjects
Cantón Quito ,Tesis de Maestría en Proyectos Arquitectónicos ,Edificio ,Diseño arquitectónico ,Arquitectura - Abstract
El presente estudio pretende dar juicio estético a un momento histórico significativo en el desarrollo de la Arquitectura Moderna en la ciudad de Quito. La década de 1960- 1970 sentó las bases de su rápido crecimiento, a través de hechos trascendentales que marcarán su devenir. Los edificios: Previsora Norte - 1961 (Jaime Dávalos Proaño), Banco Central del Ecuador - 1963 (Ramiro Pérez Martínez), Benalcazar Mil - 1969 (Fernando Najas), y La Filantrópica - 1970 (Diego Ponce Bueno); construidos en esta década y emplazados en el eje de la Av. 10 de Agosto, son el resultado del desarrollo urbano estratégico de la cuidad. A través de la mirada retrospectiva del trabajo de estos cuatro profesionales; que desde su óptica constructiva, funcional y de programa consiguen proyectar estructuras genuinas y consistentes que poseen identidad propia. Identidad que es el resultado de la síntesis de los requisitos del programa, de los criterios estéticos y del detalle constructivo, sobre el cual la presente investigación destaca un remarcado énfasis, convirtiéndose en un instrumento de definición, desde un enfoque técnico y visual. Todas estas características permiten valorar sus principios de universalidad, rigor, precisión, orden y economía; bajo los cuales fueron concebidos. El propósito ha sido redibujar los planos arquitectónicos con el fin de conocer las motivaciones del autor tanto en el proyecto definitivo como en el anteproyecto. Los esfuerzos han sido encaminados hacia la búsqueda de leyes formales específicas que identifican cada obra, es decir al final del proceso se constatarán los atributos particulares, partiendo desde el programa y construcción Magíster en Proyectos Arquitectónicos Cuenca
- Published
- 2007
41. Proyecto de investigación educativa: la Historia del arte a través de códigos QR
- Author
-
Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas, Moreno Vera, Juan Ramón, López Vera, María Isabel, Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas, Moreno Vera, Juan Ramón, and López Vera, María Isabel
- Abstract
En el ámbito de la educación formal las nuevas tecnologías cada vez están cada vez más presentes. En el caso de este proyecto de investigación educativa se ha llevado a cabo una experiencia en la que los alumnos de Bachillerato y Grado debían investigar y crear materiales didácticos sobre Historia del arte a través de códigos QR que les permita acceder a las infinitas posibilidades de información que existen por medio de smartphones y tabletas. La metodología usada ha sido constructivista, siendo necesaria la creación de un blog docente y del uso de generadores de QR para que la información analizada pueda ser trasladada, a la vez que se ha usado una metodología sinéctica en la que el alumno asumiese el rol del profesor, potenciando así su pensamiento creativo como futuro docente. En cuanto a los resultados obtenidos nos hemos encontrado con el gran interés despertado entre los alumnos, de los que hemos recibo algo más de 100 códigos por parte de los alumnos de Grado, y 10 en la clase de Bachillerato. Entre los materiales que han aparecido con mayor asiduidad en los códigos destacamos: texto explicativo sobre las obras, vídeos explicativos, material sonoro, documentales, películas relacionadas, reconstrucciones 3D o incluso imágenes de restauraciones.
- Published
- 2013
42. Development of quality standards in inflammatory bowel disease management and design of an evaluation tool of nursing care
- Author
-
Torrejón, Antonio, primary, Oltra, Lorena, additional, Hernández-Sampelayo, Paloma, additional, Marín, Laura, additional, García-Sánchez, Valle, additional, Casellas, Francesc, additional, Alfaro, Noelia, additional, Lázaro, Pablo, additional, and Vera, María Isabel, additional
- Published
- 2013
- Full Text
- View/download PDF
43. La arquitectura moderna en Quito, 1960-1970: el detalle constructivo en cuatro edificios emplazados en la avenida 10 de Agosto
- Author
-
Hermida Palacios, María Augusta, López Vera, María Isabel, Hermida Palacios, María Augusta, and López Vera, María Isabel
- Published
- 2007
44. Centro de promoción y difusión cultural para el cantón Chordeleg
- Author
-
Ramos Monori, Jeimis Leonardo, López Vera, María Isabel, Ramos Monori, Jeimis Leonardo, and López Vera, María Isabel
- Published
- 2005
45. Adalimumab is effective in long-term real life clinical practice in both luminal and perianal Crohn's disease. The Madrid experience
- Author
-
Fortea-Ormaechea, José Ignacio, primary, González-Lama, Yago, additional, Casis, Begoña, additional, Chaparro, María, additional, López Serrano, Pilar, additional, Van Domselaar, Manuel, additional, Bermejo, Fernando, additional, Pajares, Ramón, additional, Ponferrada, Ángel, additional, Vera, María Isabel, additional, Martínez Montiel, Pilar, additional, Gisbert, Javier P., additional, Pérez-Calle, José Luis, additional, López San Román, Antonio, additional, Abreu, Luis, additional, Menchén, Luis Alberto, additional, and Marín-Jiménez, Ignacio, additional
- Published
- 2011
- Full Text
- View/download PDF
46. Marcadores de evolución de la enfermedad inflamatoria intestinal tratada con inmunomoduladores o agentes biológicos
- Author
-
González-Lama, Yago, primary, Vera, María Isabel, additional, Calvo, Marta, additional, and Abreu, Lluís, additional
- Published
- 2010
- Full Text
- View/download PDF
47. Qualitative Study on WIC Program Strategies to Promote Breastfeeding Practices in Puerto Rico: What do Nutritionist/Dietician’s Think?
- Author
-
Ruiz, Migdalia Varela, primary, Arroyo, Hiram, additional, Dávila Torres, René R., additional, Vera, María Isabel Matos, additional, and Reyes Ortiz, Víctor E., additional
- Published
- 2010
- Full Text
- View/download PDF
48. Notas sobre el comercio entre Canarias y Santo Domingo durante el reinado de Carlos II (1665-1700)
- Author
-
Paredes Vera, María Isabel and Paredes Vera, María Isabel
49. Valoración de la eficacia del tratamiento de mantenimiento con infliximab a largo plazo en la enfermedad de Crohn fistulizante perianal mediante resonancia magnética
- Author
-
Calvo Moya, Marta Isabel, Abreu Abreu, Luis, Vera, María Isabel, and Universidad Autónoma de Madrid. Departamento de Medicina
- Subjects
Enteritis regional - Tratamiento - Tesis doctorales - Abstract
Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Medicina. Departamento de Medicina. Fecha de lectura: 5 de Marzo de 2008
- Published
- 2008
50. Evaluation of Genetic Variants Associated with the Risk of Thiopurine-Related Pancreatitis: A Case Control Study from ENEIDA Registry.
- Author
-
Guerra I, Barros F, Chaparro M, Benítez JM, Martín-Arranz MD, de Francisco R, Piqueras M, de Castro L, Carbajo AY, Bermejo F, Mínguez M, Gutiérrez A, Mesonero F, Cañete F, González-Muñoza C, Calvo M, Sicilia B, Alfambra E, Rivero M, Lucendo AJ, Tardillo CA, Almela P, Bujanda L, van Domselaar M, Ramos L, Fernández Sánchez M, Hinojosa E, Verdejo C, Gimenez A, Rodríguez-Lago I, Manceñido N, Pérez Calle JL, Moreno MDP, Delgado-Guillena PG, Antolín B, Ramírez de la Piscina P, Casanova MJ, Soto Escribano P, Martín Arranz E, Pérez-Martínez I, Mena R, García Morales N, Granja A, Boscá Watts MM, Francés R, Fernández C, Calafat M, Roig-Ramos C, Vera MI, Carracedo Á, Domènech E, and Gisbert JP
- Subjects
- Humans, Female, Male, Adult, Case-Control Studies, Middle Aged, Genetic Predisposition to Disease, Risk Factors, Genetic Variation, Mercaptopurine adverse effects, Mercaptopurine therapeutic use, Pancreatitis chemically induced, Pancreatitis genetics, Inflammatory Bowel Diseases genetics, Inflammatory Bowel Diseases drug therapy, Registries
- Abstract
Introduction: Risk factors for developing pancreatitis due to thiopurines in patients with inflammatory bowel disease (IBD) are not clearly identified. Our aim was to evaluate the predictive pharmacogenetic risk of pancreatitis in IBD patients treated with thiopurines., Methods: We conducted an observational pharmacogenetic study of acute pancreatitis events in a cohort study of IBD patients treated with thiopurines from the prospectively maintained ENEIDA registry biobank of GETECCU. Samples were obtained and the CASR, CEL, CFTR, CDLN2, CTRC, SPINK1, CPA1, and PRSS1 genes, selected based on their known association with pancreatitis, were fully sequenced., Results: Ninety-five cases and 105 controls were enrolled; a total of 57% were women. Median age at pancreatitis diagnosis was 39 years. We identified 81 benign variants (50 in cases and 67 in controls) and a total of 35 distinct rare pathogenic and unknown significance variants (10 in CEL, 21 in CFTR, 1 in CDLN2, and 3 in CPA1). None of the cases or controls carried pancreatitis-predisposing variants within the CASR, CPA1, PRSS1, and SPINK1 genes, nor a pathogenic CFTR mutation. Four different variants of unknown significance were detected in the CDLN and CPA1 genes; one of them was in the CDLN gene in a single patient with pancreatitis and 3 in the CPA1 gene in 5 controls. After the analysis of the variants detected, no significant differences were observed between cases and controls., Conclusion: In patients with IBD, genes known to cause pancreatitis seem not to be involved in thiopurine-related pancreatitis onset., (© 2024 S. Karger AG, Basel.)
- Published
- 2024
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.