418 results on '"Azagra, P."'
Search Results
2. Is Alpha-Gal an Emerging Allergen in Drug Allergy?
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Martínez-Arcediano, Ana, de La Viuda Camino, Elena, Ruiz de Galarreta Beristain, Marina, Velasco Azagra, Marta, and Longo Areso, María Natividad
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- 2024
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3. C2-Lusin approximation of strongly convex functions
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Azagra, Daniel, Drake, Marjorie, and Hajłasz, Piotr
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- 2024
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4. $\mathbf{C^2}$-Lusin approximation of strongly convex functions
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Azagra, Daniel, Drake, Marjorie, and Hajłasz, Piotr
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Mathematics - Classical Analysis and ODEs ,Primary 26B25, Secondary 41A29, 52A20, 52A27 - Abstract
We prove that if $u:\mathbb{R}^n\to\mathbb{R}$ is strongly convex, then for every $\varepsilon>0$ there is a strongly convex function $v\in C^2(\mathbb{R}^n)$ such that $|\{u\neq v\}|<\varepsilon$ and $\Vert u-v\Vert_\infty<\varepsilon$.
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- 2023
5. SimCol3D -- 3D Reconstruction during Colonoscopy Challenge
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Rau, Anita, Bano, Sophia, Jin, Yueming, Azagra, Pablo, Morlana, Javier, Kader, Rawen, Sanderson, Edward, Matuszewski, Bogdan J., Lee, Jae Young, Lee, Dong-Jae, Posner, Erez, Frank, Netanel, Elangovan, Varshini, Raviteja, Sista, Li, Zhengwen, Liu, Jiquan, Lalithkumar, Seenivasan, Islam, Mobarakol, Ren, Hongliang, Lovat, Laurence B., Montiel, José M. M., and Stoyanov, Danail
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Computer Science - Computer Vision and Pattern Recognition ,I.4.5 - Abstract
Colorectal cancer is one of the most common cancers in the world. While colonoscopy is an effective screening technique, navigating an endoscope through the colon to detect polyps is challenging. A 3D map of the observed surfaces could enhance the identification of unscreened colon tissue and serve as a training platform. However, reconstructing the colon from video footage remains difficult. Learning-based approaches hold promise as robust alternatives, but necessitate extensive datasets. Establishing a benchmark dataset, the 2022 EndoVis sub-challenge SimCol3D aimed to facilitate data-driven depth and pose prediction during colonoscopy. The challenge was hosted as part of MICCAI 2022 in Singapore. Six teams from around the world and representatives from academia and industry participated in the three sub-challenges: synthetic depth prediction, synthetic pose prediction, and real pose prediction. This paper describes the challenge, the submitted methods, and their results. We show that depth prediction from synthetic colonoscopy images is robustly solvable, while pose estimation remains an open research question.
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- 2023
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6. Scientific production on robotic metabolic and bariatric surgery: a comprehensive bibliometric analysis on its current world status
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Rivero-Moreno, Yeisson, Corzo, Maria Paula, Goyal, Aman, Roa-Maldonado, Juan Camilo, Echevarria, Sophia, Elzein, Steven, Elli, Enrique, Pullatt, Rana, Pouwels, Sjaak, Pascotto, Beniamino, Azagra, Juan Santiago, Raffaelli, Marco, Angrisani, Luigi, Yang, Wah, Abou-Mrad, Adel, and Oviedo, Rodolfo J.
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- 2024
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7. Sex differences in formal recommendation of assets for health (social prescribing) in Aragon
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Pola-Garcia, Marina, Benede Azagra, Carmen Belen, Enriquez Martin, Natalia, Lou Alcaine, Maria Luz, Melus-Palazon, Elena, Mendez-Lopez, Fatima, and Gasch-Gallen, Angel
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- 2024
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8. The steady effect of knowledge co-creation with universities on business scientific impact throughout the economic cycle
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Gómez-Aguayo, Ana María, Azagra-Caro, Joaquín M., and Benito-Amat, Carlos
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- 2024
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9. A meta-analysis of previous falls and subsequent fracture risk in cohort studies
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Vandenput, Liesbeth, Johansson, Helena, McCloskey, Eugene V., Liu, Enwu, Schini, Marian, Åkesson, Kristina E., Anderson, Fred A., Azagra, Rafael, Bager, Cecilie L., Beaudart, Charlotte, Bischoff-Ferrari, Heike A., Biver, Emmanuel, Bruyère, Olivier, Cauley, Jane A., Center, Jacqueline R., Chapurlat, Roland, Christiansen, Claus, Cooper, Cyrus, Crandall, Carolyn J., Cummings, Steven R., da Silva, José A. P., Dawson-Hughes, Bess, Diez-Perez, Adolfo, Dufour, Alyssa B., Eisman, John A., Elders, Petra J. M., Ferrari, Serge, Fujita, Yuki, Fujiwara, Saeko, Glüer, Claus-Christian, Goldshtein, Inbal, Goltzman, David, Gudnason, Vilmundur, Hall, Jill, Hans, Didier, Hoff, Mari, Hollick, Rosemary J., Huisman, Martijn, Iki, Masayuki, Ish-Shalom, Sophia, Jones, Graeme, Karlsson, Magnus K., Khosla, Sundeep, Kiel, Douglas P., Koh, Woon-Puay, Koromani, Fjorda, Kotowicz, Mark A., Kröger, Heikki, Kwok, Timothy, Lamy, Olivier, Langhammer, Arnulf, Larijani, Bagher, Lippuner, Kurt, McGuigan, Fiona E. A., Mellström, Dan, Merlijn, Thomas, Nguyen, Tuan V., Nordström, Anna, Nordström, Peter, O’Neill, Terence W., Obermayer-Pietsch, Barbara, Ohlsson, Claes, Orwoll, Eric S., Pasco, Julie A., Rivadeneira, Fernando, Schott, Anne-Marie, Shiroma, Eric J., Siggeirsdottir, Kristin, Simonsick, Eleanor M., Sornay-Rendu, Elisabeth, Sund, Reijo, Swart, Karin M. A., Szulc, Pawel, Tamaki, Junko, Torgerson, David J., van Schoor, Natasja M., van Staa, Tjeerd P., Vila, Joan, Wareham, Nicholas J., Wright, Nicole C., Yoshimura, Noriko, Zillikens, MCarola, Zwart, Marta, Harvey, Nicholas C., Lorentzon, Mattias, Leslie, William D., and Kanis, John A.
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- 2024
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10. A geometric approach to second-order differentiability of convex functions
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Azagra, Daniel, Cappello, Anthony, and Hajłasz, Piotr
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Mathematics - Classical Analysis and ODEs ,Mathematics - Differential Geometry ,26B25, 28A75, 41A30, 52A20, 52A27, 53C45 - Abstract
We show a new, elementary and geometric proof of the classical Alexandrov theorem about the second order differentiability of convex functions. We also show new proofs of recent results about Lusin approximation of convex functions and convex bodies by $C^{1,1}$ convex functions and convex bodies.
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- 2023
11. Sex differences in formal recommendation of assets for health (social prescribing) in Aragon
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Marina Pola-Garcia, Carmen Belen Benede Azagra, Natalia Enriquez Martin, Maria Luz Lou Alcaine, Elena Melus-Palazon, Fatima Mendez-Lopez, and Angel Gasch-Gallen
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Sex ,Gender role ,Health Promotion ,Social Prescribing ,Primary Health Care ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background In primary health care, social prescribing is an important tool which is gaining popularity. It is being studied significantly, however there is not enough evidence about different related issues. The aim of this study is to analyse the differences by sex in the application of a social prescription protocol in Primary Care. Methods This is a cross-sectional study carried out with data from the Electronic Health Record between September 2018 and March 2021. Descriptive, bivariate and multivariate analyses of data from 2,109 records of Social Prescription protocol in primary health care centers located in Aragón in northern Spain (Europe) were performed using Jamovi Statistics software (version 2.3.28). The comparisons by sex were carried out using a Mann-Whitney U or chi-squared test to analyse differences. Results The protocol was used correctly 1,482 times, where it was applied more in females (74.8% female vs. 25.2% male). The median age in females was higher than males (female 72 vs. males 70; p = 0.003). There were significant differences by sex in several aspects to strengthen with the social prescribing, physical, emotional and relational skills. Most females and males regularly attended the recommended asset and there were significant differences in the group that never attended. Mean satisfaction was statistically different, with 4.74 points out of 5 for females and 4.86/5 for males (p = 0.010). It can be observed that older females in rural areas (OR = 34.15), whose social prescription acts on Emotional Skills and Relational and Social Skills (OR = 6.10–8.23), with good prior self-care and greater participant satisfaction (OR = 8.96), have greater chance of improving their health. Conclusions Some results showed sex differences in the use and outcomes of formal asset recommendation. However, further research is needed to assess the relationship between social prescription, sex and gender and their implications.
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- 2024
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12. Real-time polarimetry of hyperpolarized $^{13}$C nuclear spins using an atomic magnetometer
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Mouloudakis, Kostas, Bodenstedt, Sven, Azagra, Marc, Mitchell, Morgan W, Marco-Rius, Irene, and Tayler, Michael CD
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Physics - Chemical Physics ,Physics - Atomic Physics - Abstract
We introduce a method for non-destructive quantification of nuclear spin polarization, of relevance to hyperpolarized spin tracers widely used in magnetic resonance from spectroscopy to in vivo imaging. In a bias field of around 30 nT we use a high-sensitivity miniaturized $^{87}$Rb vapor magnetometer to measure the field generated by the sample, as it is driven by a windowed dynamical decoupling pulse sequence that both maximizes the nuclear spin lifetime and modulates the polarization for easy detection. We demonstrate the procedure applied to a 0.08 M hyperpolarized [1--$^{13}$C]-pyruvate solution produced by dissolution dynamic nuclear polarization, measuring polarization repeatedly during natural decay at Earth's field. Application to real-time quality monitoring of hyperpolarized substances is discussed.
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- 2023
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13. Generalised Likelihood Ratio Testing Adversaries through the Differential Privacy Lens
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Kaissis, Georgios, Ziller, Alexander, de Azagra, Stefan Kolek Martinez, and Rueckert, Daniel
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Computer Science - Cryptography and Security ,Computer Science - Artificial Intelligence ,Statistics - Applications - Abstract
Differential Privacy (DP) provides tight upper bounds on the capabilities of optimal adversaries, but such adversaries are rarely encountered in practice. Under the hypothesis testing/membership inference interpretation of DP, we examine the Gaussian mechanism and relax the usual assumption of a Neyman-Pearson-Optimal (NPO) adversary to a Generalized Likelihood Test (GLRT) adversary. This mild relaxation leads to improved privacy guarantees, which we express in the spirit of Gaussian DP and $(\varepsilon, \delta)$-DP, including composition and sub-sampling results. We evaluate our results numerically and find them to match the theoretical upper bounds.
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- 2022
14. Previous fracture and subsequent fracture risk: a meta-analysis to update FRAX
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Kanis, J.A., Johansson, H., McCloskey, E.V., Liu, E., Åkesson, K.E., Anderson, F.A., Azagra, R., Bager, C.L., Beaudart, C., Bischoff-Ferrari, H.A., Biver, E., Bruyère, O., Cauley, J.A., Center, J.R., Chapurlat, R., Christiansen, C., Cooper, C., Crandall, C.J., Cummings, S.R., da Silva, J.A.P., Dawson-Hughes, B., Diez-Perez, A., Dufour, A.B., Eisman, J.A., Elders, P.J.M., Ferrari, S., Fujita, Y., Fujiwara, S., Glüer, C.-C., Goldshtein, I., Goltzman, D., Gudnason, V., Hall, J., Hans, D., Hoff, M., Hollick, R.J., Huisman, M., Iki, M., Ish-Shalom, S., Jones, G., Karlsson, M.K., Khosla, S., Kiel, D.P., Koh, W.-P., Koromani, F., Kotowicz, M.A., Kröger, H., Kwok, T., Lamy, O., Langhammer, A., Larijani, B., Lippuner, K., Mellström, D., Merlijn, T., Nordström, A., Nordström, P., O’Neill, T.W., Obermayer-Pietsch, B., Ohlsson, C., Orwoll, E.S., Pasco, J.A., Rivadeneira, F., Schott, A.-M., Shiroma, E.J., Siggeirsdottir, K., Simonsick, E.M., Sornay-Rendu, E., Sund, R., Swart, K.M.A., Szulc, P., Tamaki, J., Torgerson, D.J., van Schoor, N.M., van Staa, T.P., Vila, J., Wareham, N.J., Wright, N.C., Yoshimura, N., Zillikens, M.C., Zwart, M., Vandenput, L., Harvey, N.C., Lorentzon, M., and Leslie, W.D.
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- 2023
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15. EndoMapper dataset of complete calibrated endoscopy procedures
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Azagra, Pablo, Sostres, Carlos, Ferrandez, Ángel, Riazuelo, Luis, Tomasini, Clara, Barbed, Oscar León, Morlana, Javier, Recasens, David, Batlle, Victor M., Gómez-Rodríguez, Juan J., Elvira, Richard, López, Julia, Oriol, Cristina, Civera, Javier, Tardós, Juan D., Murillo, Ana Cristina, Lanas, Angel, and Montiel, José M. M.
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Electrical Engineering and Systems Science - Image and Video Processing ,Computer Science - Computer Vision and Pattern Recognition - Abstract
Computer-assisted systems are becoming broadly used in medicine. In endoscopy, most research focuses on the automatic detection of polyps or other pathologies, but localization and navigation of the endoscope are completely performed manually by physicians. To broaden this research and bring spatial Artificial Intelligence to endoscopies, data from complete procedures is needed. This paper introduces the Endomapper dataset, the first collection of complete endoscopy sequences acquired during regular medical practice, making secondary use of medical data. Its main purpose is to facilitate the development and evaluation of Visual Simultaneous Localization and Mapping (VSLAM) methods in real endoscopy data. The dataset contains more than 24 hours of video. It is the first endoscopic dataset that includes endoscope calibration as well as the original calibration videos. Meta-data and annotations associated with the dataset vary from the anatomical landmarks, procedure labeling, segmentations, reconstructions, simulated sequences with ground truth and same patient procedures. The software used in this paper is publicly available., Comment: 17 pages, 14 figures, 8 tables
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- 2022
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16. Inner and outer smooth approximation of convex hypersurfaces. When is it possible?
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Azagra, Daniel and Stolyarov, Dmitriy
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Mathematics - Metric Geometry ,Mathematics - Classical Analysis and ODEs - Abstract
Let $S$ be a convex hypersurface (the boundary of a closed convex set $V$ with nonempty interior) in $\mathbb{R}^n$. We prove that $S$ contains no lines if and only if for every open set $U\supset S$ there exists a real-analytic convex hypersurface $S_{U} \subset U\cap \textrm{int}(V) $. We also show that $S$ contains no rays if and only if for every open set $U\supset S$ there exists a real-analytic convex hypersurface $S_{U}\subset U\setminus V$. Moreover, in both cases, $S_U$ can be taken strongly convex. We also establish similar results for convex functions defined on open convex subsets of $\mathbb{R}^n$, completely characterizing the class of convex functions that can be approximated in the $C^0$-fine topology by smooth convex functions from above or from below. We also provide similar results for $C^1$-fine approximations, Comment: 22 pages
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- 2022
17. Levels of Self-Determination in the Ageing Population with Intellectual Disabilities
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Álvarez-Aguado, Izaskun, Vega Córdova, Vanessa, Spencer González, Herbert, González Carrasco, Félix, Jarpa Azagra, Marcela, and Exss Cid, Katherine
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Background: Self-determination is a key construct to guarantee the development of skills that allow people with disabilities to acquire control over their lives. However, people with intellectual disabilities may have premature ageing processes that make it difficult to exercise these skills. This study seeks to determine the self-determination levels of 516 ageing adults with intellectual disabilities between the ages of 45 and 86 years. Method: The data were collected with an ad hoc scale developed from the Functional Model of Self-Determination. Findings: The results show that competencies related to self-advocacy and self-knowledge greatly decreased, unlike making choices and solving problems. In addition, the severity of the disability, age, place of residence and type of support are identified as variables associated with levels of self-determination. Conclusions: There is a need to prioritise the acquisition and maintenance of skills related to self-realisation as the basis for intervention proposals in self-determination.
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- 2022
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18. Social Prescribing Schemes in Primary Care in Spain (EvalRA Project): a mixed-method study protocol to build an evaluation model
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Pola-Garcia, M., Carrera Noguero, A. M., Astier-Peña, M. P., Mira, J. J., Guilabert-Mora, M., Cassetti, V., Melús-Palazón, E., Gasch-Gallén, A., and Benedé Azagra, C. B.
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- 2023
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19. Endomapper dataset of complete calibrated endoscopy procedures
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Azagra, Pablo, Sostres, Carlos, Ferrández, Ángel, Riazuelo, Luis, Tomasini, Clara, Barbed, O. León, Morlana, Javier, Recasens, David, Batlle, Víctor M., Gómez-Rodríguez, Juan J., Elvira, Richard, López, Julia, Oriol, Cristina, Civera, Javier, Tardós, Juan D., Murillo, Ana C., Lanas, Angel, and Montiel, José M. M.
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- 2023
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20. Open vs robotic gastrectomy with D2 lymphadenectomy: a propensity score-matched analysis on 1469 patients from the IMIGASTRIC prospective database
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Trastulli, Stefano, Desiderio, Jacopo, Lin, Jian-Xian, Reim, Daniel, Zheng, Chao-Hui, Borghi, Felice, Cianchi, Fabio, Norero, Enrique, Nguyen, Ninh T., Qi, Feng, Coratti, Andrea, Cesari, Maurizio, Bazzocchi, Francesca, Alimoglu, Orhan, Brower, Steven T., Pernazza, Graziano, D’Imporzano, Simone, Azagra, Juan-Santiago, Zhou, Yan-Bing, Cao, Shou-Gen, Guerra, Francesco, Liu, Tong, Arcuri, Giacomo, González, Paulina, Staderini, Fabio, Marano, Alessandra, Di Nardo, Domenico, Parisi, Amilcare, Huang, Chang-Ming, and Tebala, Giovanni Domenico
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- 2023
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21. Predictive capacity of FRAX in a spanish region with a hip fracture rate close to the national mean
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Zwart, Marta, Azagra-Ledesma, Rafael, Saez, Marc, Aguyé-Batista, Amada, Díaz-Herrera, Miguel Angel, and Tranche-Iparraguirre, Salvador
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- 2023
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22. Use of community resources as health assets for rehabilitation of people with Long COVID in northeastern Spain two years after the outbreak of the COVID-19 pandemic: qualitative study
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Samper-Pardo, Mario, Formento-Marín, Natalia, Oliván-Blázquez, Bárbara, León-Herrera, Sandra, and Benedé-Azagra, Belén
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- 2023
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23. ¿Cómo mejoramos la participación comunitaria en salud? Análisis de las acciones propuestas tras la aplicación de una herramienta de evaluación
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María Victoria López-Ruiz, Marina Pola, Natalia Enríquez Martín, Viola Cassetti, Teresa Iriarte de los Santos, and Carmen Belén Benedé Azagra
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Community health ,Primary healthcare ,Evaluation ,Guidelines ,Medicine (General) ,R5-920 - Abstract
Resumen: Objetivo: Analizar las líneas de acción propuestas por los proyectos de promoción de la salud participantes en el proyecto de investigación EvaluAGPS, y su relación con las puntuaciones obtenidas con EvalGuía, una herramienta para evaluar la participación comunitaria basada en la evidencia. Diseño: Estudio multicéntrico cuali-cuantitativo. Emplazamiento: Proyectos de atención primaria o de red intersectorial de atención primaria y municipalidades de 5 comunidades autónomas en España. Participantes: Personas que trabajan en 10 proyectos de promoción de la salud, seleccionados con muestreo intencional según criterios de inclusión (proyectos con un mínimo de participación comunitaria centrados en la salud comunitaria). Método: Se recogieron los datos mediante cuestionarios (herramienta EvalGuía) y talleres participativos. Los datos cuantitativos se analizaron con estadística descriptiva, los datos cualitativos se analizaron utilizando el análisis de matriz. Resultados: Tras pasar la herramienta EvalGuía, las puntuaciones más bajas estaban en la evaluación de resultados, conocimiento de leyes relacionadas con participación comunitaria, diversidad en el grupo motor, medidas de conciliación, recursos financieros y devolución de resultados. Las líneas de acción planteadas eran heterogéneas y no siempre coinciden con las priorizadas. Las líneas priorizadas giraban en torno a la organización del proyecto y a la comunicación. Conclusiones: La herramienta EvalGuía puede ser útil para diseñar planes de acción en proyectos de promoción de la salud. La implementación de medidas en 12 meses para aumentar la diversidad del grupo motor, incorporar medidas de conciliación o mejorar la evaluación es difícil. Se requiere más tiempo para implementar este tipo de medidas. Abstract: Objective: To analyse the lines of action identified in the health promotion projects participating in the EvaluA GPS research, and their relationship with the scores assigned in EvalGuia, a tool for evaluating evidence-based community participation. Design: Qualitative-quantitative multicentre study. Setting: Primary care or intersectoral network of primary care and municipalities in five autonomous communities in Spain. Participants: Participants of 10 health promotion projects, selected with convenience sampling, following inclusion criteria (projects with a minimum of community engagement and centred on community health). Method: Data were collected through questionnaires (EvalGuía tool) and participatory workshops. Quantitative data were analysed with descriptive statistics, qualitative data were analysed using matrix analysis. Results: After implementing the EvalGuide tool, the lowest scores were assigned in outcome evaluation, knowledge of policies related to community participation, diversity in the core working group, inclusivity policies, financial resources and diffusion of results. The lines of action proposed were heterogeneous and did not always match with those prioritised as lower score. The prioritised lines revolved around project organisation and communication. Conclusions: The EvalGuide tool can be helpful to design action plans in Health Promotion projects. The implementation of measures in 12 months to increase the diversity of the core working group, to incorporate work–life balance measures or to improve evaluation is difficult. More time is needed to implement such measures.
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- 2024
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24. Polarization losses from the nonadiabatic passage of hyperpolarized solutions through metallic components
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James Eills, Marc Azagra, David Gómez-Cabeza, Michael C.D. Tayler, and Irene Marco-Rius
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Hyperpolarization ,Non-adiabatic ,Low-field MRI ,Spin relaxation ,Benchtop NMR ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Physics ,QC1-999 - Abstract
From complex-mixture analysis to in vivo molecular imaging, applications of liquid-state nuclear spin hyperpolarization have expanded widely over recent years. In most cases, hyperpolarized solutions are generated ex situ and transported from the polarization instrument to the measurement device. The sample hyperpolarization usually survives this transport, since the changes in magnetic fields that are external to the sample are typically adiabatic (slow) with respect to the internal nuclear spin dynamics. The passage of polarized samples through weakly magnetic components such as stainless steel syringe needles and ferrules is not always adiabatic, which can lead to near-complete destruction of the magnetization. To avoid this effect becoming “folklore” in the field of hyperpolarized NMR, we present a systematic investigation to highlight the problem and investigate possible solutions. Experiments were carried out on: (i) dissolution-DNP-polarized [1-13C]pyruvate with NMR detection at 1.4T, and (ii) 1.5-T-polarized H2O with NMR detection at 2.5μT. We show that the degree of adiabaticity of solutions passing through metal parts is intrinsically unpredictable, likely depending on many factors such as solution flow rate, degree of remanent ferromagnetism in the metal, and nuclear spin species. However, the magnetization destruction effects can be suppressed by application of an external field on the order of 0.1–10mT.
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- 2024
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25. Social Prescribing Schemes in Primary Care in Spain (EvalRA Project): a mixed-method study protocol to build an evaluation model
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M. Pola-Garcia, A. M. Carrera Noguero, M. P. Astier-Peña, J. J. Mira, M. Guilabert-Mora, V. Cassetti, E. Melús-Palazón, A. Gasch-Gallén, Consortium EvaLRA, and C. B. Benedé Azagra
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Evaluation studies ,Social prescribing ,Primary health care ,Community health services ,Community networks ,Medicine (General) ,R5-920 - Abstract
Abstract Background Social Prescribing is a Primary Health Care service that provides people with non-clinical care alternatives that may have an impact on their health. Social Prescribing can be more or less formal and structured. Social Prescribing Schemes are formal Social Prescribing of health assets by Primary Health Care teams in coordination and follow-up of patients with providers. The emerging evidence suggests that this service can improve people’s health and well-being, create value and provide sustainability for the healthcare system. However, some evaluations note that the current evidence regarding social prescribing is insufficient and needs further investigation. The EvaLRA project aims to elaborate an evaluation model of Social Prescribing Schemes in Primary Health Care based on a set of structure, process, and outcomes indicators. Methods In the region of Aragon, the Community Health Care Strategy aims to promote the development of social prescription schemes in Primary Health Care teams. This study is divided into two stages. Stage 1: identification of primary health care teams that implement social prescribing schemes and establish a first set of indicators to evaluate social prescribing using qualitative consensus techniques with experts. Stage 2 evaluation of the relevance, feasibility and sensitivity of selected indicators after 6 and 12 months in primary health care teams. The results will provide a set of indicators considering structure, process and outcomes for social prescribing schemes. Discussion Current evaluations of the application of social prescribing schemes use different criteria and indicators. A set of agreed indicators and its piloting in primary health care teams will provide a tool to evaluate the implementation of social prescription schemes. In addition, the scorecard created could be of interest to other health systems in order to assess the service and improve its information system, deployment and safety.
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- 2023
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26. Endomapper dataset of complete calibrated endoscopy procedures
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Pablo Azagra, Carlos Sostres, Ángel Ferrández, Luis Riazuelo, Clara Tomasini, O. León Barbed, Javier Morlana, David Recasens, Víctor M. Batlle, Juan J. Gómez-Rodríguez, Richard Elvira, Julia López, Cristina Oriol, Javier Civera, Juan D. Tardós, Ana C. Murillo, Angel Lanas, and José M. M. Montiel
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Science - Abstract
Abstract Computer-assisted systems are becoming broadly used in medicine. In endoscopy, most research focuses on the automatic detection of polyps or other pathologies, but localization and navigation of the endoscope are completely performed manually by physicians. To broaden this research and bring spatial Artificial Intelligence to endoscopies, data from complete procedures is needed. This paper introduces the Endomapper dataset, the first collection of complete endoscopy sequences acquired during regular medical practice, making secondary use of medical data. Its main purpose is to facilitate the development and evaluation of Visual Simultaneous Localization and Mapping (VSLAM) methods in real endoscopy data. The dataset contains more than 24 hours of video. It is the first endoscopic dataset that includes endoscope calibration as well as the original calibration videos. Meta-data and annotations associated with the dataset vary from the anatomical landmarks, procedure labeling, segmentations, reconstructions, simulated sequences with ground truth and same patient procedures. The software used in this paper is publicly available.
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- 2023
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27. The SEDIGISM survey: first data release and overview of the Galactic structure
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Schuller, F., Urquhart, J. S., Csengeri, T., Colombo, D., Duarte-Cabral, A., Mattern, M., Ginsburg, A., Pettitt, A. R., Wyrowski, F., Anderson, L., Azagra, F., Barnes, P., Beltran, M., Beuther, H., Billington, S., Bronfman, L., Cesaroni, R., Dobbs, C., Eden, D., Lee, M. -Y., Medina, S. -N. X., Menten, K. M., Moore, T., Montenegro-Montes, F. M., Ragan, S., Rigby, A., Riener, M., Russeil, D., Schisano, E., Sanchez-Monge, A., Traficante, A., Zavagno, A., Agurto, C., Bontemps, S., Finger, R., Giannetti, A., Gonzalez, E., Hernandez, A. K., Henning, T., Kainulainen, J., Kauffmann, J., Leurini, S., Lopez, S., Mac-Auliffe, F., Mazumdar, P., Molinari, S., Motte, F., Muller, E., Nguyen-Luong, Q., Parra, R., Perez-Beaupuits, J. -P., Schilke, P., Schneider, N., Suri, S., Testi, L., Torstensson, K., Veena, V. S., Venegas, P., Wang, K., and Wienen, M.
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Astrophysics - Astrophysics of Galaxies - Abstract
The SEDIGISM (Structure, Excitation and Dynamics of the Inner Galactic Interstellar Medium) survey used the APEX telescope to map 84 deg^2 of the Galactic plane between l = -60 deg and l = +31 deg in several molecular transitions, including 13CO(2-1) and C18O(2-1), thus probing the moderately dense (~10^3 cm^-3) component of the interstellar medium. With an angular resolution of 30'' and a typical 1-sigma sensitivity of 0.8-1.0 K at 0.25 km/s velocity resolution, it gives access to a wide range of structures, from individual star-forming clumps to giant molecular clouds and complexes. The coverage includes a good fraction of the first and fourth Galactic quadrants, allowing us to constrain the large scale distribution of cold molecular gas in the inner Galaxy. In this paper we provide an updated overview of the full survey and the data reduction procedures used. We also assess the quality of these data and describe the data products that are being made publicly available as part of this first data release (DR1). We present integrated maps and position-velocity maps of the molecular gas and use these to investigate the correlation between the molecular gas and the large scale structural features of the Milky Way such as the spiral arms, Galactic bar and Galactic centre. We find that approximately 60 per cent of the molecular gas is associated with the spiral arms and these appear as strong intensity peaks in the derived Galactocentric distribution. We also find strong peaks in intensity at specific longitudes that correspond to the Galactic centre and well known star forming complexes, revealing that the 13CO emission is concentrated in a small number of complexes rather than evenly distributed along spiral arms., Comment: MNRAS, in press
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- 2020
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28. The SEDIGISM survey: Molecular clouds in the inner Galaxy
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Duarte-Cabral, A., Colombo, D., Urquhart, J. S., Ginsburg, A., Russeil, D., Schuller, F., Anderson, L. D., Barnes, P. J., Beltran, M. T., Beuther, H., Bontemps, S., Bronfman, L., Csengeri, T., Dobbs, C. L., Eden, D., Giannetti, A., Kauffmann, J., Mattern, M., Medina, S. -N. X., Menten, K. M., Lee, M. -Y., Pettitt, A. R., Riener, M., Rigby, A. J., Trafficante, A., Veena, V. S., Wienen, M., Wyrowski, F., Agurto, C., Azagra, F., Cesaroni, R., Finger, R., Gonzalez, E., Henning, T., Hernandez, A. K., Kainulainen, J., Leurini, S., Lopez, S., Mac-Auliffe, F., Mazumdar, P., Molinari, S., Motte, F., Muller, E., Nguyen-Luong, Q., Parra, R., Perez-Beaupuits, J. -P., Montenegro-Montes, F. M., Moore, T. J. T., Ragan, S. E., Sanchez-Monge, A., Sanna, A., Schilke, P., Schisano, E., Schneider, N., Suri, S., Testi, L., Torstensson, K., Venegas, P., Wang, K., and Zavagno, A.
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Astrophysics - Astrophysics of Galaxies - Abstract
We use the 13CO(2-1) emission from the SEDIGISM high-resolution spectral-line survey of the inner Galaxy, to extract the molecular cloud population with a large dynamic range in spatial scales, using the SCIMES algorithm. This work compiles a cloud catalogue with a total of 10663 molecular clouds, 10300 of which we were able to assign distances and compute physical properties. We study some of the global properties of clouds using a science sample, consisting of 6664 well resolved sources and for which the distance estimates are reliable. In particular, we compare the scaling relations retrieved from SEDIGISM to those of other surveys, and we explore the properties of clouds with and without high-mass star formation. Our results suggest that there is no single global property of a cloud that determines its ability to form massive stars, although we find combined trends of increasing mass, size, surface density and velocity dispersion for the sub-sample of clouds with ongoing high-mass star formation. We then isolate the most extreme clouds in the SEDIGISM sample (i.e. clouds in the tails of the distributions) to look at their overall Galactic distribution, in search for hints of environmental effects. We find that, for most properties, the Galactic distribution of the most extreme clouds is only marginally different to that of the global cloud population. The Galactic distribution of the largest clouds, the turbulent clouds and the high-mass star-forming clouds are those that deviate most significantly from the global cloud population. We also find that the least dynamically active clouds (with low velocity dispersion or low virial parameter) are situated further afield, mostly in the least populated areas. However, we suspect that part of these trends may be affected by some observational biases, and thus require further follow up work in order to be confirmed., Comment: 25 pages (+ appendices, 15 pages), 26 figures, MNRAS
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- 2020
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29. Laparoscopic Compared with Open D2 Gastrectomy on Perioperative and Long-Term, Stage-Stratified Oncological Outcomes for Gastric Cancer: A Propensity Score-Matched Analysis of the IMIGASTRIC Database.
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Trastulli, Stefano, Desiderio, Jacopo, Lin, Jian-Xian, Reim, Daniel, Zheng, Chao-Hui, Borghi, Felice, Cianchi, Fabio, Norero, Enrique, Nguyen, Ninh T, Qi, Feng, Coratti, Andrea, Cesari, Maurizio, Bazzocchi, Francesca, Alimoglu, Orhan, Brower, Steven T, Pernazza, Graziano, D'Imporzano, Simone, Azagra, Juan-Santiago, Zhou, Yan-Bing, Cao, Shou-Gen, Garofoli, Eleonora, Mosillo, Claudia, Guerra, Francesco, Liu, Tong, Arcuri, Giacomo, González, Paulina, Staderini, Fabio, Marano, Alessandra, Terrenato, Irene, D'Andrea, Vito, Bracarda, Sergio, Huang, Chang-Ming, and Parisi, Amilcare
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gastric cancer ,laparoscopy ,minimally invasive surgery ,Clinical Research ,Patient Safety ,Cancer ,6.4 Surgery ,Oncology and Carcinogenesis - Abstract
BackgroundThe laparoscopic approach in gastric cancer surgery is being increasingly adopted worldwide. However, studies focusing specifically on laparoscopic gastrectomy with D2 lymphadenectomy are still lacking in the literature. This retrospective study aimed to compare the short-term and long-term outcomes of laparoscopic versus open gastrectomy with D2 lymphadenectomy for gastric cancer.MethodsThe protocol-based, international IMIGASTRIC (International study group on Minimally Invasive surgery for Gastric Cancer) registry was queried to retrieve data on patients undergoing laparoscopic or open gastrectomy with D2 lymphadenectomy for gastric cancer with curative intent from January 2000 to December 2014. Eleven predefined, demographical, clinical, and pathological variables were used to conduct a 1:1 propensity score matching (PSM) analysis to investigate intraoperative and recovery outcomes, complications, pathological findings, and survival data between the two groups. Predictive factors of long-term survival were also assessed.ResultsA total of 3033 patients from 14 participating institutions were selected from the IMIGASTRIC database. After 1:1 PSM, a total of 1248 patients, 624 in the laparoscopic group and 624 in the open group, were matched and included in the final analysis. The total operative time (median 180 versus 240 min, p < 0.0001) and the length of the postoperative hospital stay (median 10 versus 14.8 days, p < 0.0001) were longer in the open group than in the laparoscopic group. The conversion to open rate was 1.9%. The proportion of patients with in-hospital complications was higher in the open group (21.3% versus 15.1%, p = 0.004). The median number of harvested lymph nodes was higher in the laparoscopic approach (median 32 versus 28, p < 0.0001), and the proportion of positive resection margins was higher (p = 0.021) in the open group (5.9%) than in the laparoscopic group (3.2%). There was no significant difference between the groups in five-year overall survival rates (77.4% laparoscopic versus 75.2% open, p = 0.229).ConclusionThe adoption of the laparoscopic approach for gastric resection with D2 lymphadenectomy shortened the length of hospital stay and reduced postoperative complications with respect to the open approach. The five-year overall survival rate after laparoscopy was comparable to that for patients who underwent open D2 resection. The types of surgical approaches are not independent predictive factors for five-year overall survival.
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- 2021
30. Real Robotic 3-Arm Sleeve Gastrectomy
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Pascotto, Beniamino, Azagra, Juan Santiago, González González, Lucía, and Goergen, Martine
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- 2024
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31. Superior Mesenteric Artery First Approach for Minimally Invasive Pancreaticoduodenectomy: A Step-By-Step Surgical Technique Video
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Ielpo, Benedetto, Anselmo, Alessandro, Masuda, Yoshio, Xuan, Mark Yeo Hao, Burdio, Fernando, De Blasi, Vito, Sanchez-Velazquez, Patricia, Giuliani, Antonio, Azagra, Juan Santiago, Viola, Giuseppe Massimiliano, Podda, Mauro, Pellino, Gianluca, and Rosso, Edoardo
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- 2023
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32. Predictive capacity of FRAX in a spanish region with a hip fracture rate close to the national mean
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Marta Zwart, Rafael Azagra-Ledesma, Marc Saez, Amada Aguyé-Batista, Miguel Angel Díaz-Herrera, and Salvador Tranche-Iparraguirre
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FRAX® ,Primary care ,Osteoporotic fracture risk ,Osteoporotic fracture ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Abstract Background It is known that standardized incidence rates of hip fracture vary among older people in Spain. So far, the results published on the validation of the FRAX® tool in Spain have suggested that the major osteoporotic fractures (MOFs) risk in our country is underestimated. These studies have practically been based on Spanish cohorts evaluated in Catalonia, a higher hip fracture rate area. The purpose of this study is to analyse the ability of the FRAX® in a Spanish mid-fracture rate population. Methods Study design: Retrospective cohort study. Measures MOFs: hip, humerus, wrist, spine fractures. Risk of fracture assessed by calculating odds ratios (ORs). Predictive capacity of FRAX® according to the osteoporotic fractures observed between 2009 and 2018 (ObsFr) to predicted by FRAX® without densitometry in 2009 (PredFr) ratio. Results 285 participants (156 women, 54.7%) with a mean ± SD of 61.5 ± 14 years. Twenty-four people sustained 27 fractures (15 MOFs). Significant ORs were observed for an age ≥ 65 (2.92; 95% CI, 1.07–7.96), female sex (3.18; 95% CI, 1.24–8.16), rheumatoid arthritis (0.62; 95% CI, 2.03–55.55), proton pump (2.71; 95% CI, 1.20–6.09) and serotonin reuptake (2.51; 95% CI, 1.02–6.16) inhibitors. The ObsFr/PredFr ratio in women were 1.12 (95% CI, 0.95–1.29) for MOFs and 0.47 (95% CI, 0-0.94) for hip fractures. Men had a ratio of 0.57 (95% CI, 0.01–1.14) for MOF, no hip fractures were observed. The ratios for the overall group were 1.29 (95% CI, 1.12–1.48) for MOFs and 0.70 (95% CI, 0.22–1.17) for hip fractures. Conclusions FRAX® accurately predicted MOFs in women population with a hip fracture incidence rate close to the national mean compared to previous studies conducted in higher incidence regions in Spain.
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- 2023
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33. Use of community resources as health assets for rehabilitation of people with Long COVID in northeastern Spain two years after the outbreak of the COVID-19 pandemic: qualitative study
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Mario Samper-Pardo, Natalia Formento-Marín, Bárbara Oliván-Blázquez, Sandra León-Herrera, and Belén Benedé-Azagra
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Community resources ,Health assets ,Rehabilitation ,Long COVID ,Qualitative study ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Introduction The epidemiology of Post COVID Condition is not yet known. There are different treatment options, but they are not recommended or suitable for all those affected. For this reason and due to the lack of health treatment, many of these patients have tried to carry out their own rehabilitation through the use of community resources. Objective The objective of this study is to deepen into the understanding about the use of community resources as assets for health and rehabilitation by people with Long COVID and their utility. Methodology A qualitative design was carried out with the participation of 35 Long COVID patients, of which 17 subjects were interviewed individually and 18 of them were part of two focus groups. The participating patients were recruited in November and December 2021 from the Primary Health Care centers and through the Association of Long COVID patients of Aragon. The research topics were the use of community resources, before and after their infection by COVID-19, rehabilitation through their use, as well as barriers and strengths for their employment. All analyses were performed iteratively using NVivo software. Results Long COVID patients who have used community resources for rehabilitation have seen an improvement in their physical and mental health. Most of them, specifically those affected, have used green spaces, public facilities, physical or cultural activities and associations. The main barriers identified have been the symptoms themselves and the fear of reinfection, with the main advantage of these activities being the perceived health benefits. Conclusion The use of community resources seems to be beneficial in the recovery process of Long COVID patients, so it is necessary to continue delving into this topic and promote the formal use of the Recommendation of Health Assets from Primary healthcare.
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- 2023
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34. A step forward in fishway engineering: Validation and implementation of advanced algorithms for effective stepped fishway design, modeling, and retrofitting
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Juan Francisco Fuentes-Pérez, Ana García-Vega, Andrés Martínez de Azagra Paredes, and Francisco Javier Sanz-Ronda
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Hydraulic modeling ,Simulation ,Fishways ,Fish passes ,Discharge equations ,Software ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Stepped fishways are the main alternative to allow fish migration in river obstacles. Their design is a multidisciplinary process, where civil engineering meets biology. This can bias the fishway design towards one discipline, which may cause low efficiencies or inadequate solutions. Likewise, it is often challenging to incorporate new discoveries into well-established design principles. To solve these problems, we have developed a novel tool named “Escalas”. Escalas is a multipurpose platform for the assisted design, 1D simulation, assessment, and correction of stepped fishways. Escalas architecture allows fishway assessment during different hydraulic scenarios in the river (i.e., different water levels and discharges in the river), automatic dimensioning considering fish's physical needs, the study of any type of stepped fishway, to test solutions for malfunctioning or to assess fishway retrofitting. This is achieved by a modular variable definition during fishway design or definition, which allows multiple combinations of connections within and/or between cross-walls and independent discharge equation definition. This work aims to introduce Escalas to the research and engineering community, describe its algorithms, and show and validate its performance by its use in real and practical cases. Among others, results demonstrate how the tool can reproduce uniform and non-uniform performances on stepped fishways and allows fishway retrofitting to make hydraulic conditions compatible with fish usage during different river scenarios. Therefore, this work represents a step forward in the fishway engineering discipline by applying methods of engineering informatics and providing a technical and scientific base to make engineering decision-making more reliable and accessible as well as to incorporate new advances in fishway research into the engineering design process.
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- 2024
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35. Personality and emotional intelligence of researchers: The importance of affects.
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Laura Hernando-Jorge, Anabel Fernández-Mesa, Joaquín M Azagra-Caro, and Ana M Tur-Porcar
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Medicine ,Science - Abstract
Researchers, who play a crucial role in knowledge production, deal with various emotions in their challenging work environment. Their personality might affect how well they manage their emotions, but their moods could help counteract these effects. This study aims to investigate whether researchers' moods influence the connection between their personality and emotional intelligence. 7,463 Spanish researchers replied to an online survey. Responses analysed through partial least squares structural equation modelling show significant positive relationships between the big five personality traits (openness to experience, conscientiousness, extraversion, agreeableness and emotional stability) and emotional intelligence. In addition, positive affect positively mediates the relationships between each of the personality traits and emotional intelligence, and negative affect mediates the same relationships but negatively. The importance of managing emotional states to regulate emotional experiences in the work of researchers is discussed.
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- 2024
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36. ¿Qué necesitamos para «hacer comunitaria»? Veinticinco medidas prácticas para gerencias y equipos de atención primaria
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Asier Calvo Álvarez de Arkaia, Carmen Belén Benedé Azagra, Mikel Gandarias Jaio, Adrián Cardo Miota, and Mariano Hernán García
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Health promotion ,Public Health ,Sanitary Management ,Primary Health Care ,Family and Community Medicine ,Public aspects of medicine ,RA1-1270 - Abstract
Resumen: Objetivo: Identificar y matizar qué medidas organizativas prácticas promoverían el desarrollo de las actividades comunitarias de nivel 2 (educación para la salud grupal con orientación comunitaria) y nivel 3 (acción comunitaria) en Atención Primaria (AP) desde la perspectiva de profesionales de medicina con formación y experiencia en este ámbito. Método: Estudio exploratorio, descriptivo y transversal realizado mediante metodología cualitativa utilizando dos técnicas: 3 grupos focales (24 participantes) y 12 cuestionarios abiertos (12 participantes). Resultados: Se definen 25 medidas para promover el desarrollo de estas actividades que interpelan tanto a las gerencias como a los equipos de atención primaria (EAP). Las propuestas más destacadas son potenciar la formación en salud comunitaria, incorporar en las agendas de trabajo de profesionales de los EAP la actividad comunitaria, priorización política y apoyo desde las gerencias, asegurar la estabilidad laboral de los equipos, fortalecer el reconocimiento de las actividades comunitarias, redimensionar los cupos, fortalecer el trabajo multidisciplinario, la cohesión y una organización autónoma y flexible en los EAP, y contar con el apoyo de las coordinaciones-direcciones de los EAP. Conclusiones: Tres propuestas se han considerado fundamentales para favorecer el desarrollo de actividades comunitarias de nivel 2 y nivel 3 en AP: 1) potenciar la formación en salud comunitaria; 2) incorporar en las agendas de trabajo de las personas profesionales de los EAP la actividad comunitaria; 3) priorización política y apoyo desde las gerencias para el desarrollo de estos dos niveles de trabajo en AP. Otras seis propuestas se han reconocido como de especial importancia. Abstract: Objective: Identify and clarify what practical organizational measures would promote the development of level 2 (community-oriented group health education) and level 3 (community action) community activities in Primary Health Care (PHC) from the perspective of medical professionals with training and experience in this area. Method: Exploratory, descriptive and cross-sectional study carried out using qualitative methodology using two techniques: 3 focus groups (24 participants) and 12 open questionnaires (12 participants). Results: 25 measures are defined to promote the development of these activities that are the responsibility of management and Primary Care Teams (PCT). The most notable proposals are: enhance training in community health, incorporate community activity into the work agendas of professionals, political prioritization and support from management, ensure the job stability of the teams, strengthen the recognition of activities community, resize the patient population of professionals, strengthen multidisciplinary work, cohesion and an autonomous and flexible organization in the PCT, and have the support of the coordinations-directions of the PCT. Conclusions: Three proposals have been considered fundamental to promote the development of level 2 and level 3 community activities in PHC: 1) promote training in community health; 2) incorporate community activity into the work agendas of professionals; 3) political prioritization and support from management for the development of these two levels of work in PHC. Six other proposals have been recognized as being of special importance.
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- 2024
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37. Editorial: Training readers and writers for a multimodal and multimedia society: cognitive aspects
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Ester Trigo Ibáñez, Inmaculada Clotilde Santos Díaz, and Marcela Jarpa Azagra
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cognition ,critical thinking ,lexical availability ,reading habits ,academic writing ,writing in L2 ,Psychology ,BF1-990 - Published
- 2024
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38. Lusin-type properties of convex functions and convex bodies
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Azagra, Daniel and Hajłasz, Piotr
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Mathematics - Classical Analysis and ODEs ,Mathematics - Differential Geometry ,26B25, 28A75, 41A30, 52A20, 52A27, 53C45 - Abstract
We prove that if $f:\mathbb{R}^n\to\mathbb{R}$ is convex and $A\subset\mathbb{R}^n$ has finite measure, then for any $\varepsilon>0$ there is a convex function $g:\mathbb{R}^n\to\mathbb{R}$ of class $C^{1,1}$ such that $\mathcal{L}^n(\{x\in A:\, f(x)\neq g(x)\})<\varepsilon$. As an application we deduce that if $W\subset\mathbb{R}^n$ is a compact convex body then, for every $\varepsilon>0$, there exists a convex body $W_{\varepsilon}$ of class $C^{1,1}$ such that $\mathcal{H}^{n-1}\left(\partial W\setminus \partial W_{\varepsilon}\right)< \varepsilon$. We also show that if $f:\mathbb{R}^n\to\mathbb{R}$ is a convex function and $f$ is not of class $C^{1,1}_{\rm loc}$, then for any $\varepsilon>0$ there is a convex function $g:\mathbb{R}^n\to\mathbb{R}$ of class $C^{1,1}_{\rm loc}$ such that $\mathcal{L}^n(\{x\in \mathbb{R}^n:\, f(x)\neq g(x)\})<\varepsilon$ if and only if $f$ is essentially coercive, meaning that $\lim_{|x|\to\infty}f(x)-\ell(x)=\infty$ for some linear function $\ell$. A consequence of this result is that, if $S$ is the boundary of some convex set with nonempty interior (not necessarily bounded) in $\mathbb{R}^n$ and $S$ does not contain any line, then for every $\varepsilon>0$ there exists a convex hypersurface $S_{\varepsilon}$ of class $C^{1,1}_{\textrm{loc}}$ such that $\mathcal{H}^{n-1}(S\setminus S_{\varepsilon})<\varepsilon$., Comment: 15 pages
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- 2020
39. Enlarging the knowledge transfer realm through engagement with research stakeholders: a conversation attempt with action research
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Joaquín M. Azagra-Caro and Alejandra Boni
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Knowledge transfer ,action research ,research stakeholders ,communicative space ,societal impact ,Transferência de conhecimento ,Technology (General) ,T1-995 ,Social sciences (General) ,H1-99 - Abstract
ABSTRACTMany knowledge transfer studies analyze channels that carry knowledge from university to industry and society. Action research has become a method to produce and transfer scientific knowledge at the same time; however, knowledge transfer studies rarely employ action research, and action research has rarely addressed the topic of knowledge transfer. Hence, there have been few opportunities to reflect upon the boundaries between the object of knowledge transfer studies and the knowledge transfer embodied in action research. Here, we present a first theoretical attempt to fill this gap, clarifying the concepts at play and drawing lessons for knowledge transfer studies about the dimensions through which knowledge transfer occurs in the communicative space generated during action research. We also ground our reflections on the suitability of introducing action research in knowledge transfer studies by conducting interviews with some of the most influential researchers in the field. Action research is posited as a way to increase engagement with research stakeholders, as called for by current demands to achieve higher societal impact. Engagement is highlighted as a source of key concepts and improved interpretation of results in knowledge transfer studies.
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- 2023
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40. $C^{1,\omega}$ extension formulas for $1$-jets on Hilbert spaces
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Azagra, Daniel and Mudarra, Carlos
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Mathematics - Functional Analysis ,Mathematics - Classical Analysis and ODEs - Abstract
We provide necessary and sufficient conditions for a $1$-jet $(f, G):E\rightarrow \mathbb{R} \times X$ to admit an extension $(F, \nabla F)$ for some $F\in C^{1, \omega}(X)$. Here $E$ stands for an arbitrary subset of a Hilbert space $X$ and $\omega$ is a modulus of continuity. As a corollary, in the particular case $X=\mathbb{R}^n$, we obtain an extension (nonlinear) operator whose norm does not depend on the dimension $n$. Furthermore, we construct extensions $(F, \nabla F)$ in such a way that: (1) the (nonlinear) operator $(f, G)\mapsto (F, \nabla F)$ is bounded with respect to a natural seminorm arising from the constants in the given condition for extension (and the bounds we obtain are almost sharp); (2) $F$ is given by an explicit formula; (3) $(F, \nabla F)$ depend continuously on the given data $(f, G)$; (4) if $f$ is bounded (resp. if $G$ is bounded) then so is $F$ (resp. $F$ is Lipschitz). We also provide similar results on superreflexive Banach spaces., Comment: We have added some comments in the Introduction and also corrected some misprints
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- 2019
41. Thrombotic microangiopathies in critically ill children: The MATUCIP registry in Spain
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Lorena Bermúdez Barrezueta, Sylvia Belda Hofheinz, Amelia Martínez De Azagra Garde, Sara Bobillo Pérez, Manuel Nieto Faza, and Antonio Rodríguez Núñez
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Microangiopatía trombótica ,Síndrome hemolítico urémico ,Cuidados intensivos pediátricos ,Anemia hemolítica microangiopática ,Trombocitopenia ,Insuficiencia renal aguda ,Pediatrics ,RJ1-570 - Abstract
Introduction: Thrombotic microangiopathies (TMA) are rare diseases usually presenting with renal, haematological, neurologic and cardiovascular involvement and nonspecific but severe symptoms. A registry of TMA cases managed in Spanish paediatric intensive care units (the MATUCIP Registry) was established with the aim of gaining knowledge on their clinical characteristics, diagnosis and acute-phase treatment. Methods: We conducted a prospective multicentre observational study in 20 paediatric intensive care units (PICUs) in Spain from January 2017 to December 2021 in children aged more than 1 month with TMAs, who were followed up through the discharge from the PICU. Results: The sample included 97 patients (51.5% female) with a median age of 2.6 years (interquartile range [IQR], 1.6–5.7). The initial manifestations were gastrointestinal (74.2%), respiratory (14.4%), fever (5.2%), neurologic (3.1%) and other (3.1%). At admission, 75.3% of patients had microangiopathic haemolytic anaemia, 95.9% thrombocytopenia and 94.8% acute kidney injury. Of the total sample, 57.7% of patients received a diagnosis of Shiga toxin-associated haemolytic uraemic syndrome (HUS), 14.4% of Streptococcus pneumoniae-associated HUS, 15.6% of atypical HUS, 10.3% of secondary TMA and 2.1% of thrombotic thrombocytopenic purpura. Eighty-seven patients (89.7%) developed arterial hypertension, and 49.5% gastrointestinal, 22.7% respiratory, 25.8% neurologic and 12.4% cardiac manifestations. Also, 60.8% required renal replacement therapy and 2.1% plasma exchange. Twenty patients received eculizumab. The median PICU stay was 8.5 days (IQR, 5–16.5). Two children died. Conclusions: The MATUCIP registry demonstrates the clinical variability of TMA cases requiring admission to the PICU. Knowledge of the presentation and outcomes of TMAs can facilitate early aetiological diagnosis. This registry can help improve our understanding of the clinical spectrum of these diseases, for which there is a dearth of published data. Resumen: Introducción: Las microangiopatías trombóticas (MAT) son entidades infrecuentes que suelen causar afectación renal, hematológica, neurológica y cardiovascular, con síntomas inespecíficos pero graves. Con la finalidad de mejorar el conocimiento de sus características clínicas, proceso diagnóstico y tratamiento en la fase aguda, se ha creado el registro de MAT en las Unidades de Cuidados Intensivos Pediátricos (UCIP) de España (Registro MATUCIP). Pacientes y métodos: Estudio observacional, multicéntrico realizado en 20 UCIP españolas desde enero 2017 hasta diciembre de 2021 que incluyó niños mayores de 1 mes con diagnóstico de MAT y seguimiento hasta el alta de UCIP. Resultados: Se incluyeron 97 pacientes (51,5% mujeres), con mediana de edad de 2,6 años (RIQ 1,6–5,7). La clínica inicial fue de tipo gastrointestinal (74,2%), respiratoria (14,4%), cuadro febril (5,2%), neurológica (3,1%) y otras (3,1%). Al ingreso, 75,3% presentaban anemia hemolítica microangiopática, 95,9% trombocitopenia y 94,8% daño renal agudo. Fueron diagnosticados de Síndrome Hemolítico Urémico (SHU) asociado a Escherichia coli productora de toxina Shiga 57,7%, SHU por Streptococcus pneumoniae 14,4%, SHU atípico 15,6%, MAT secundaria 10,3% y púrpura trombocitopénica trombótica 2,1%. Desarrollaron hipertensión arterial 89,7%, manifestaciones digestivas 49,5%, respiratorias 22,7%, neurológicas 25,8% y cardiacas 12,4%. El 60,8% requirieron depuración extrarrenal y 2,1% plasmaféresis. Recibieron eculizumab 20 pacientes. La mediana de estancia en UCIP fue 8,5 días (RIQ 5–16,5). Dos niños fallecieron. Conclusiones: El registro MATUCIP muestra la variabilidad clínica de las MAT que ingresan en UCIP. Conocer la forma de presentación y evolución de las MAT puede facilitar el diagnóstico etiológico precoz. Este registro permite conocer mejor el espectro clínico de estas entidades donde los datos publicados son escasos.
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- 2023
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42. Minimally invasive pancreatic anastomosis after pancreaticoduodenectomy: multi-institutional step by step video description of the technique
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Ielpo, Benedetto, Anselmo, Alessandro, Koh, Yexin, Burdio, Fernando, De Blasi, Vito, Sanchez-Velazquez, Patricia, Azagra, Juan Santiago, Huscher, Cristiano, Giuliani, Antonio, Pellino, Gianluca, and Rosso, Edoardo
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- 2023
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43. Prácticas de lectura de textos no ficcionales de jóvenes con discapacidad intelectual
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Carolina Margarita González Ramírez, Marcela Jarpa-Azagra, Sandra Loreto Catalán-Henríquez, and Vanessa del Pilar Vega-Córdova
- Subjects
lectura funcional ,deficiencia mental ,accesibilidad para los discapacitados ,libros para jóvenes ,libros de imágenes ,Education ,Education (General) ,L7-991 - Abstract
Este artículo de investigación tiene como objetivo caracterizar las prácticas de lectura de textos no ficcionales a las que acceden jóvenes con discapacidad intelectual. El estudio se enmarca en el paradigma interpretativo, con un método cualitativo de alcance descriptivo. Por lo tanto, la recolección de información se llevó a cabo mediante grupos focales realizados en establecimientos de educación especial de la Región de Valparaíso en Chile, en los cuales participaron docentes, padres, madres y jóvenes con discapacidad intelectual (di). Para el tratamiento de los datos se aplicó análisis de contenido asistido por el programa nvivo 12. Los resultados indican que las prácticas se sitúan en tres ámbitos: modalidades de lectura, formatos de lectura, espacios y momentos de lectura. Por otra parte, entre sus lecturas predominan géneros que remiten principalmente a textos de corta extensión, como leyendas; de carácter informativo, como noticias, revistas y diarios; u obras de narrativa gráfica, como manga y cómics.
- Published
- 2023
- Full Text
- View/download PDF
44. Convex $C^1$ extensions of $1$-jets from compact subsets of Hilbert spaces
- Author
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Azagra, Daniel and Mudarra, Carlos
- Subjects
Mathematics - Functional Analysis - Abstract
Let $X$ denote a Hilbert space. Given a compact subset $K$ of $X$ and two continuous functions $f:K\to\mathbb{R}$, $G:K\to X$, we show that a necessary and sufficient condition for the existence of a convex function $F\in C^1(X)$ such that $F=f$ on $K$ and $\nabla F=G$ on $K$ is that the $1$-jet $(f, G)$ satisfies (1) $f(x)\geq f(y)+ \langle G(y), x-y\rangle$ for all $x, y\in K$, and (2) if $x, y\in K$ and $f(x)= f(y)+ \langle G(y), x-y\rangle$ then $G(x)=G(y)$. We also solve a similar problem for $K$ replaced with an arbitrary bounded subset of $X$, and for $C^1(X)$ replaced with the class $C^{1,u}_{b}(X)$ of differentiable functions with uniformly continuous derivatives on bounded subsets of $X$., Comment: Final version (with an improvement in the proof suggested by a referee)
- Published
- 2019
45. On the global shape of continuous convex functions on Banach spaces
- Author
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Azagra, Daniel
- Subjects
Mathematics - Functional Analysis ,Mathematics - Optimization and Control - Abstract
We make some remarks on the global shape of continuous convex functions defined on a Banach space $Z$. Among other results we prove that if $Z$ is separable then for every continuous convex function $f:Z\to\mathbb{R}$ there exist a unique closed linear subspace $Y_f$ of $Z$ such that, for the quotient space $X_f :=Z/Y_{f}$ and the natural projection $\pi:Z\to X_f$, the function $f$ can be written in the form $$ f(z)=\varphi(\pi(z)) +\ell(z) \textrm{ for all } z\in Z, $$ where $\ell_{f}\in X^{*}$ and $\varphi:X_f\to\mathbb{R}$ is a convex function such that $\lim_{t\to\infty}\varphi(x+tv)=\infty$ for every $x, v\in X_f$ with $v\neq 0$. This kind of result is generally false if $Z$ is nonseparable (even in the Hilbertian case $Z=\ell_{2}(\Gamma)$ with $\Gamma$ an uncountable set)., Comment: 10 pages. I have corrected some misprints and small inaccuracies
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- 2019
46. Locally $C^{1,1}$ convex extensions of $1$-jets
- Author
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Azagra, Daniel
- Subjects
Mathematics - Functional Analysis ,Mathematics - Classical Analysis and ODEs ,Mathematics - Differential Geometry - Abstract
Let $E$ be an arbitrary subset of $\mathbb{R}^n$, and $f:E\to\mathbb{R}$, $G:E\to\mathbb{R}^n$ be given functions. We provide necessary and sufficient conditions for the existence of a convex function $F\in C^{1,1}_{\textrm{loc}}(\mathbb{R}^n)$ such that $F=f$ and $\nabla F=G$ on $E$. We give a useful explicit formula for such an extension $F$, and a variant of our main result for the class $C^{1, \omega}_{\textrm{loc}}$, where $\omega$ is a modulus of continuity. We also present two applications of these results, concerning how to find $C^{1,1}_{\textrm{loc}}$ convex hypersurfaces with prescribed tangent hyperplanes on a given subset of $\mathbb{R}^n$, and some explicit formulas for (not necessarily convex) $C^{1,1}_{\textrm{loc}}$ extensions of $1$-jets., Comment: I corrected some misprints and updated a reference
- Published
- 2019
47. Prescribing tangent hyperplanes to $C^{1,1}$ and $C^{1,\omega}$ convex hypersurfaces in Hilbert and superreflexive Banach spaces
- Author
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Azagra, Daniel and Mudarra, Carlos
- Subjects
Mathematics - Functional Analysis - Abstract
Let $X$ denote $\mathbb{R}^n$ or, more generally, a Hilbert space. Given an arbitrary subset $C$ of $X$ and a collection $\mathcal{H}$ of affine hyperplanes of $X$ such that every $H\in\mathcal{H}$ passes through some point $x_{H}\in C$, and $C=\{x_H : H\in\mathcal{H}\}$, what conditions are necessary and sufficient for the existence of a $C^{1,1}$ convex hypersurface $S$ in $X$ such that $H$ is tangent to $S$ at $x_H$ for every $H\in\mathcal{H}$? In this paper we give an answer to this question. We also provide solutions to similar problems for convex hypersurfaces of class $C^{1, \omega}$ in Hilbert spaces, and for convex hypersurfaces of class $C^{1, \alpha}$ in superreflexive Banach spaces having equivalent norms with moduli of smoothness of power type $1+\alpha$, $\alpha\in (0, 1].$, Comment: 17 pages
- Published
- 2019
48. Learning Enhancement of Control Engineering: A Competition-Based Case
- Author
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David Gallarta-Saenz, Javier Rico-Azagra, and Montserrat Gil-Martinez
- Subjects
Competition-based learning ,contest ,higher education ,automatic control systems ,testbed ,UAV ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
The transition from academic training to professional life is not an easy task. In recent years, various learning enhancement methodologies have emerged to reduce this gap, which focuses on both soft and technical skills. Specifically, Competition-Based Learning (CBL) seeks to improve learning and motivation through the competitive component, which has detractors and defenders. In this framework, the present work proposes a national competition, CIC2022, within the field of control engineering that uses a testbed with an Unmanned Aerial Vehicle (UAV) for helping to link theory and practice. The main objective is to analyze the results of CBL on learning. In addition to explaining the characteristics of the competition and the academic results obtained, a survey answered by participants provides conclusions on the effectiveness of the methodology and other issues related to the contest. Greater motivation and teamwork promoted the active learning of students and improved the autonomous acquisition of technical skills.
- Published
- 2023
- Full Text
- View/download PDF
49. Update of the fracture risk prediction tool FRAX: a systematic review of potential cohorts and analysis plan
- Author
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Vandenput, L., Johansson, H., McCloskey, E. V., Liu, E., Åkesson, K. E., Anderson, F. A., Azagra, R., Bager, C. L., Beaudart, C., Bischoff-Ferrari, H. A., Biver, E., Bruyère, O., Cauley, J. A., Center, J. R., Chapurlat, R., Christiansen, C., Cooper, C., Crandall, C. J., Cummings, S. R., da Silva, J. A. P., Dawson-Hughes, B., Diez-Perez, A., Dufour, A. B., Eisman, J. A., Elders, P. J. M., Ferrari, S., Fujita, Y., Fujiwara, S., Glüer, C.-C., Goldshtein, I., Goltzman, D., Gudnason, V., Hall, J., Hans, D., Hoff, M., Hollick, R. J., Huisman, M., Iki, M., Ish-Shalom, S., Jones, G., Karlsson, M. K., Khosla, S., Kiel, D. P., Koh, W.-P., Koromani, F., Kotowicz, M. A., Kröger, H., Kwok, T., Lamy, O., Langhammer, A., Larijani, B., Lippuner, K., Mellström, D., Merlijn, T., Nordström, A., Nordström, P., O’Neill, T. W., Obermayer-Pietsch, B., Ohlsson, C., Orwoll, E. S., Pasco, J. A., Rivadeneira, F., Schei, B., Schott, A.-M., Shiroma, E. J., Siggeirsdottir, K., Simonsick, E. M., Sornay-Rendu, E., Sund, R., Swart, K. M. A., Szulc, P., Tamaki, J., Torgerson, D. J., van Schoor, N. M., van Staa, T. P., Vila, J., Wareham, N. J., Wright, N. C., Yoshimura, N., Zillikens, M. C., Zwart, M., Harvey, N. C., Lorentzon, M., Leslie, W. D., and Kanis, J. A.
- Published
- 2022
- Full Text
- View/download PDF
50. Dynamic perspectives on technology transfer: introduction to the special section
- Author
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Barberá-Tomás, David, Azagra-Caro, Joaquín M., and D’Este, Pablo
- Published
- 2022
- Full Text
- View/download PDF
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