456 results on '"Urdiales, P."'
Search Results
2. Physical activity and hippocampal volume in young adults
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Cherednichenko, Anastasia, Miró-Padilla, Anna, Adrián-Ventura, Jesús, Monzonís-Carda, Irene, Beltran-Valls, Maria Reyes, Moliner-Urdiales, Diego, and Ávila, César
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- 2024
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3. Binary Endogenous Treatment in Stochastic Frontier Models with an Application to Soil Conservation in El Salvador
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Centorrino, Samuele, Pérez-Urdiales, Maria, Bravo-Ureta, Boris, and Wall, Alan J.
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Economics - Econometrics ,Statistics - Applications - Abstract
Improving the productivity of the agricultural sector is part of one of the Sustainable Development Goals set by the United Nations. To this end, many international organizations have funded training and technology transfer programs that aim to promote productivity and income growth, fight poverty and enhance food security among smallholder farmers in developing countries. Stochastic production frontier analysis can be a useful tool when evaluating the effectiveness of these programs. However, accounting for treatment endogeneity, often intrinsic to these interventions, only recently has received any attention in the stochastic frontier literature. In this work, we extend the classical maximum likelihood estimation of stochastic production frontier models by allowing both the production frontier and inefficiency to depend on a potentially endogenous binary treatment. We use instrumental variables to define an assignment mechanism for the treatment, and we explicitly model the density of the first and second-stage composite error terms. We provide empirical evidence of the importance of controlling for endogeneity in this setting using farm-level data from a soil conservation program in El Salvador.
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- 2023
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4. A Reactive performance-based Shared Control Framework for Assistive Robotic Manipulators
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Ruiz-Ruiz, Francisco J., Urdiales, Cristina, Fernández-Carmona, Manuel, and Gómez-de-Gabriel, Jesús M.
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Computer Science - Robotics - Abstract
In Physical Human--Robot Interaction (pHRI) grippers, humans and robots may contribute simultaneously to actions, so it is necessary to determine how to combine their commands. Control may be swapped from one to the other within certain limits, or input commands may be combined according to some criteria. The Assist-As-Needed (AAN) paradigm focuses on this second approach, as the controller is expected to provide the minimum required assistance to users. Some AAN systems rely on predicting human intention to adjust actions. However, if prediction is too hard, reactive AAN systems may weigh input commands into an emergent one. This paper proposes a novel AAN reactive control system for a robot gripper where input commands are weighted by their respective local performances. Thus, rather than minimizing tracking errors or differences to expected velocities, humans receive more help depending on their needs. The system has been tested using a gripper attached to a sensitive robot arm, which provides evaluation parameters. Tests consisted of completing an on-air planar path with both arms. After the robot gripped a person's forearm, the path and current position of the robot were displayed on a screen to provide feedback to the human. The proposed control has been compared to results without assistance and to impedance control for benchmarking. A statistical analysis of the results proves that global performance improved and tracking errors decreased for ten volunteers with the proposed controller. Besides, unlike impedance control, the proposed one does not significantly affect exerted forces, command variation, or disagreement, measured as the angular difference between human and output command. Results support that the proposed control scheme fits the AAN paradigm, although future work will require further tests for more complex environments and tasks.
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- 2023
5. Increasing situational awareness through nowcasting of the reproduction number
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Bizzotto, Andrea, Guzzetta, Giorgio, Marziano, Valentina, del Manso, Martina, Urdiales, Alberto Mateo, Petrone, Daniele, Cannone, Andrea, Sacco, Chiara, Poletti, Piero, Manica, Mattia, Zardini, Agnese, Trentini, Filippo, Fabiani, Massimo, Bella, Antonino, Riccardo, Flavia, Pezzotti, Patrizio, Ajelli, Marco, and Merler, Stefano
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Quantitative Biology - Populations and Evolution - Abstract
The time varying reproduction number R is a critical variable for situational awareness during infectious disease outbreaks, but delays between infection and reporting hinder its accurate estimation in real time. We propose a nowcasting method for improving the timeliness and accuracy of R estimates, based on comparisons of successive versions of surveillance databases. The method was validated against COVID-19 surveillance data collected in Italy over an 18-month period. Compared to traditional methods, the nowcasted reproduction number reduced the estimation delay from 13 to 8 days, while maintaining a better accuracy. Moreover, it allowed anticipating the detection of periods of epidemic growth by between 6 and 23 days. The method offers a simple and generally applicable tool to improve situational awareness during an epidemic outbreak, allowing for informed public health response planning.
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- 2023
6. Assessing the Impacts of Urban Water Use Restrictions at the District Level: A Case Study of California's Drought Mandate
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Perez-Urdiales, Maria and Baerenklau, Ken
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Water conservation ,Mandatory restrictions ,Efficiency analysis ,Stochastic frontier analysis ,Civil Engineering ,Environmental Engineering ,Applied Economics ,Hydrology ,Civil engineering - Abstract
This paper estimates feasible water savings for a sample of nine urban water districts in California during the height of the 2012-16 drought, just prior to the implementation of mandatory water use reductions, using household production theory and stochastic frontier analysis. Estimates of feasible savings are compared to mandated reductions and actual reductions in each district. Although the mandated reductions were generally feasible, our results show that they had asymmetric impacts across districts and tended to impose larger burdens on some disadvantaged groups.
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- 2023
7. Mediating role of physical fitness on the association between diet and health-related quality of life in adolescents
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Alba Solera-Sanchez, Maria Reyes Beltran-Valls, Diego Moliner-Urdiales, and Mireia Adelantado-Renau
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Well-being ,Dietary patterns ,Fitness ,Quality of life ,Youth ,Sports ,GV557-1198.995 - Abstract
Objective: The aim of this study was to analyse whether the association between adherence to the Mediterranean diet and health-related quality of life (HRQoL) is mediated by physical fitness components (i.e., cardiorespiratory fitness, lower-limb strength, upper-limb strength and motor competence) in adolescents. Methods: This is a cross-sectional study including mediation analyses. This study involved 181 adolescents (86 girls) aged 15.8 ± 0.3 years recruited from secondary schools and sport clubs located in Castellon (Spain). Adherence to the Mediterranean diet was evaluated using the KIDMED questionnaire. HRQoL was assessed with the KIDSCREEN-10 questionnaire. Cardiorespiratory fitness was assessed using the 20-m shuttle run test. Lower-limb strength was assessed through the standing broad jump test. Upper-limb strength was evaluated using a handgrip dynamometer. Motor competence was assessed using the 4 × 10 m shuttle run test. Mediation analyses were performed for each physical fitness component in order to assess its mediating effect on the association between adherence to the Mediterranean diet and HRQoL. Indirect effects (IE) with confidence intervals (CI) not including zero were interpreted as statistically significant. Results: Cardiorespiratory fitness and lower-limb strength had a mediating effect on the positive association between adherence to the Mediterranean diet and HRQoL (IE = 0.11, 95 % CI = 0.01; 0.27 and IE = 0.07, 95 % CI = 0.01; 0.19). Upper-limb strength and motor competence did not act as mediators in the association between adherence to the Mediterranean diet and HRQoL (IE = 0.00, 95 % CI = −0.04; 0.07 and IE = 0.01, 95 % CI = −0.03; 0.07, respectively). Conclusion: Our findings showed that the positive association of adherence to the Mediterranean diet on adolescents' HRQoL was mediated by physical fitness. Educational and public health strategies aiming to improve Spanish adolescents’ HRQoL should focus on diet and physical fitness.
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- 2024
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8. Risk of breakthrough infection and hospitalisation after COVID-19 primary vaccination by HIV status in four Italian regions during 2021
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Mateo-Urdiales, Alberto, Fabiani, Massimo, Mayer, Flavia, Sacco, Chiara, Belleudi, Valeria, Da Cas, Roberto, Fotakis, Emmanouil Alexandros, De Angelis, Luigi, Cutillo, Maria, Petrone, Daniele, Morciano, Cristina, Cannone, Andrea, Del Manso, Martina, Riccardo, Flavia, Bella, Antonino, Menniti-Ippolito, Franscesca, Pezzotti, Patrizio, Spila Alegiani, Stefania, and Massari, Marco
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- 2024
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9. Water insecurity among seasonal agriculture workers: perspectives from Spanish professionals
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Rodríguez-Guerrero, Luis Alejandro, Pérez-Urdiales, Iratxe, Escrig-Piñol, Astrid, Jiménez-Lasserrotte, María del Mar, Pastor-Bravo, María del Mar, Mateos, José Tomás, and Briones-Vozmediano, Erica
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- 2024
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10. Bidirectional longitudinal associations of mental health with academic performance in adolescents: DADOS study
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Monzonís-Carda, Irene, Rodriguez-Ayllon, María, Adelantado-Renau, Mireia, and Moliner-Urdiales, Diego
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- 2024
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11. Socioeconomic Inequalities in SARS-CoV-2 Infection and COVID-19 Health Outcomes in Urban Italy During the COVID-19 Vaccine Rollout, January–November 2021
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Fotakis, Emmanouil Alexandros, Mateo-Urdiales, Alberto, Fabiani, Massimo, Sacco, Chiara, Petrone, Daniele, Riccardo, Flavia, Bella, Antonino, and Pezzotti, Patrizio
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- 2024
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12. Risk of breakthrough infection and hospitalisation after COVID-19 primary vaccination by HIV status in four Italian regions during 2021
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Alberto Mateo-Urdiales, Massimo Fabiani, Flavia Mayer, Chiara Sacco, Valeria Belleudi, Roberto Da Cas, Emmanouil Alexandros Fotakis, Luigi De Angelis, Maria Cutillo, Daniele Petrone, Cristina Morciano, Andrea Cannone, Martina Del Manso, Flavia Riccardo, Antonino Bella, Franscesca Menniti-Ippolito, Patrizio Pezzotti, Stefania Spila Alegiani, and Marco Massari
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HIV ,COVID-19 ,VACCINES ,AIDS ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background As of 2024, vaccination remains the main mitigation measure against COVID-19, but there are contradictory results on whether people living with HIV (PLWH) are less protected by vaccines than people living without HIV (PLWoH). In this study we compared the risk of SARS-CoV-2 infection and COVID-19 hospitalisation following full vaccination in PLWH and PLWoH. Methods We linked data from the vaccination registry, the COVID-19 surveillance system and from healthcare/pharmacological registries in four Italian regions. We identified PLWH fully vaccinated (14 days post completion of the primary cycle) and matched them at a ratio of 1:4 with PLWoH by week of vaccine administration, age, sex, region of residence and comorbidities. Follow-up started on January 24, 2021, and lasted for a maximum of 234 days. We used the Kaplan-Meier estimator to calculate the cumulative incidence of infection and COVID-19 hospitalisation in both groups, and we compared risks using risk differences and ratios taking PLWoH as the reference group. Results We matched 42,771 PLWH with 171,084 PLWoH. The overall risk of breakthrough infection was similar in both groups with a rate ratio (RR) of 1.10 (95% confidence interval (CI):0.80–1.53). The absolute difference between groups at the end of the study period was 8.28 events per 10,000 person-days in the PLWH group (95%CI:-18.43-40.29). There was a non-significant increase the risk of COVID-19 hospitalisation among PLWH (RR:1.90; 95%CI:0.93–3.32) which corresponds to 6.73 hospitalisations per 10,000 individuals (95%CI: -0.57 to 14.87 per 10,000). Conclusions Our findings suggest PLWH were not at increased risk of breakthrough SARS-CoV-2 infection or COVID-19 hospitalisation following a primary cycle of mRNA vaccination.
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- 2024
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13. Additionality Effects of Rebate Programs in the Residential Water Sector: Indoor vs. Outdoor
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Pérez-Urdiales, María and Baerenklau, Kenneth A
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Rebate programs are often used in the residential water sector to alleviate market failures that may hamper the adoption of water-efficient technologies. In this paper, we examine whether several rebate programs stimulate or crowd out private investment in indoor and outdoor technologies. To do so, we use a panel of household-level data from a water district in Southern California for the period 2014–2015. Our results indicate that, while all the rebate programs considered in the analysis increase private investment in water-efficient technologies, only outdoor rebate programs generate further private investment in other outdoor technologies.
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- 2023
14. Challenges faced by migrant seasonal agricultural farmworkers for food accessibility in Spain: A qualitative study
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Luis Alejandro Rodríguez-Guerrero, José Tomás Mateos, Iratxe Pérez-Urdiales, Mar Jiménez-Lasserrotte, Juan Agustín González, and Erica Briones-Vozmediano
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Migrants ,agricultural workers ,food access ,COVID-19 ,qualitative research ,Public aspects of medicine ,RA1-1270 - Abstract
Migrants who work seasonally in agriculture face living and working conditions that significantly impact their health. Some of these conditions are related to inadequate food access or food preservation and preparation hygiene. This study aimed to explore how migrant and seasonal agricultural farmworkers access food in Spain from the perspective of professionals supporting this population. We conducted a qualitative study in 2021 based on semistructured interviews with 92 social and health service professionals involved in the care of seasonal migrant workers in 4 Spanish provinces. We identified three themes through reflective thematic analysis: (1) Access to food depends on NGOs and institutions, especially after the COVID-19 pandemic; (2) Relevant cultural differences in diet depending on North African or sub-Saharan origin; (3) Seasonal migrant workers frequently suffer from nutritional and other health problems related to food security. The professionals interviewed described the diet of seasonal migrant workers as based on food with little variety, insufficient protein content, and obesogenic products. They also reported a generalized lack of hygiene in food storage and preparation. This study calls for encouraging dietary support strategies to reduce challenges in food accessibility, which would prevent health problems in this population and bring them social justice.
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- 2024
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15. MASPEX-Europa: The Europa Clipper Neutral Gas Mass Spectrometer Investigation
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Waite, Jr., J. H., Burch, J. L., Brockwell, T. G., Young, D. T., Miller, G. P., Persyn, S. C., Stone, J. M., Wilson, IV, P., Miller, K. E., Glein, C. R., Perryman, R. S., McGrath, M. A., Bolton, S. J., McKinnon, W. B., Mousis, O., Sephton, M. A., Shock, E. L., Choukroun, M., Teolis, B. D., Wyrick, D. Y., Zolotov, M. Y., Ray, C., Magoncelli, A. L., Raffanti, R. R., Thorpe, R. L., Bouquet, A., Salter, T. L., Robinson, K. J., Urdiales, C., Tyler, Y. D., Dirks, G. J., Beebe, C. R., Fugett, D. A., Alexander, J. A., Hanley, J. J., Moorhead-Rosenberg, Z. A., Franke, K. A., Pickens, K. S., Focia, R. J., Magee, B. A., Hoeper, P. J., Aaron, D. P., Thompson, S. L., Persson, K. B., Blase, R. C., Dunn, G. F., Killough, R. L., De Los Santos, A., Rickerson, R. J., and Siegmund, O. H. W.
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- 2024
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16. Assessing educational disparities in COVID-19 related excess mortality in Spain: a population register-linked mortality study
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José Pulido, Marta Donat, Almudena Moreno, Julieta Politi, Lucía Cea-Soriano, Luis Sordo, Alberto Mateo-Urdiales, Elena Ronda, María José Belza, Gregorio Barrio, and Enrique Regidor
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COVID-19 pandemic ,mortality ,cause of death ,education ,Spain ,Public aspects of medicine ,RA1-1270 - Abstract
IntroductionData on the increase in mortality during the COVID-19 pandemic based on individuals' socioeconomic positions are limited. This study examines this increase in mortality in Spain during the epidemic waves of 2020 and 2021.MethodsWe calculated the overall and cause-specific mortality rates during the 2017–2019 pre-pandemic period and four epidemic periods in 2020 and 2021 (first, second, third-fourth, and fifth-sixth waves). Mortality rates were analyzed based on educational levels (low, medium, and high) and across various age groups (25–64, 65–74, and 75+). The increase in mortality during each epidemic period compared to the pre-pandemic period was estimated using mortality rate ratios (MRR) derived from Poisson regression models.ResultsAn inverse educational gradient in overall mortality was observed across all periods; however, this pattern was not consistent for COVID-19 mortality in some age groups. Among those aged 75 years and older, highly educated individuals showed higher COVID-19 mortality during the first wave. In the 25–64 age group, individuals with low education experienced the highest overall mortality increase, while those with high education had the lowest increase. The MRRs were 1.21 and 1.06 during the first wave and 1.12 and 0.97 during the last epidemic period. In the 65–74 age group, highly educated individuals showed the highest overall mortality increase during the first wave, whereas medium-educated individuals had the highest increase during the subsequent epidemic periods. Among those aged 75 and older, highly educated individuals exhibited the highest overall mortality increase while the individuals with low education showed the lowest overall mortality increment, except during the last epidemic period.ConclusionThe varying educational patterns of COVID-19 mortality across different age groups contributed to the disparities of findings in increased overall mortality by education levels during the COVID-19 pandemic.
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- 2024
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17. Increasing situational awareness through nowcasting of the reproduction number
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Andrea Bizzotto, Giorgio Guzzetta, Valentina Marziano, Martina Del Manso, Alberto Mateo Urdiales, Daniele Petrone, Andrea Cannone, Chiara Sacco, Piero Poletti, Mattia Manica, Agnese Zardini, Filippo Trentini, Massimo Fabiani, Antonino Bella, Flavia Riccardo, Patrizio Pezzotti, Marco Ajelli, and Stefano Merler
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reproduction number ,situational awareness ,epidemic surveillance ,nowcasting ,outbreaks ,Public aspects of medicine ,RA1-1270 - Abstract
BackgroundThe time-varying reproduction number R is a critical variable for situational awareness during infectious disease outbreaks; however, delays between infection and reporting of cases hinder its accurate estimation in real-time. A number of nowcasting methods, leveraging available information on data consolidation delays, have been proposed to mitigate this problem.MethodsIn this work, we retrospectively validate the use of a nowcasting algorithm during 18 months of the COVID-19 pandemic in Italy by quantitatively assessing its performance against standard methods for the estimation of R.ResultsNowcasting significantly reduced the median lag in the estimation of R from 13 to 8 days, while concurrently enhancing accuracy. Furthermore, it allowed the detection of periods of epidemic growth with a lead of between 6 and 23 days.ConclusionsNowcasting augments epidemic awareness, empowering better informed public health responses.
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- 2024
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18. The treatment of bacterial biofilms cultivated on knee arthroplasty implants using the bioelectric effect
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Iskandar Tamimi, María Gasca, Alexandra Halbardier, Sergio Martin, Gregorio Martin Caballero, Cristina Lucena Serrano, Elena Martin, Faleh Tamimi, David González-Quevedo, David García de Quevedo, Beatriz Sobrino, Begoña Palop, Enrique Guerado, Almudena Pérez Lara, Cristina Urdiales, and Jesús Manuel Gómez de Gabriel
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biofilm ,bioelectric effect ,periprosthetic infection ,total knee replacement ,Staphylococcus aureus ,Biotechnology ,TP248.13-248.65 - Abstract
Introduction: The formation of bacterial biofilms on knee arthroplasty implants can have catastrophic consequences. The aim of this study was to analyze the effectiveness of the bioelectric effect in the elimination of bacterial biofilms on cultivated knee arthroplasty implants.Methods: A novel device was designed to deliver a bioelectric effect on the surface of knee arthroplasty implants. 4-femoral prosthetic implants were cultivated with a staphylococcus aureus inoculum for 15 days. The components were divided into four different groups: A (not treated), B (normal saline 20-minutes), C (bioelectric effect 10-minutes), D (bioelectric effect 20-minutes). The implants were sonicated, and the detached colonies were quantified as the number of colony-forming unit (CFUs). The implants were sterilised and the process was repeated in a standardized manner four more times, to obtain a total of five samples per group.Results: The number of the CFUs after a 10-minute exposure to the bioelectric effect was of 208.2 ± 240.4, compared with 6,041.6 ± 2010.7 CFUs in group A, representing a decrease of 96.5% ± 4.3 (p = 0.004). And a diminution of 91.8% ± 7.9 compared with 2,051.0 ± 1,364.0 CFUs in group B (p = 0.109). The number of bacterial colonies after a 20-minute exposure to the bioelectric effect was 70 ± 126.7 CFUs, representing a decrease of 98.9% ± 1.9 (p = 0.000) compared with group A. And a decrease of 97.8% ± 3.0 (p = 0.019) compared with group B.Conclusions: The bioelectric effect was effective in the elimination of bacterial biofilm from knee arthroplasty implants. This method could be used in the future as part of conventional surgical procedures.
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- 2024
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19. Por qué el índice de sentimiento neto debería ser una prioridad: un estudio de caso de la industria bancaria
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José Guadalupe Mendoza Macías and Román Alejandro Mendoza Urdiales
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rendimiento accionario ,índice de sentimiento neto (ISN) ,impacto en el valor de la marca ,regresión de modelo lineal robusto ,Finance ,HG1-9999 ,Economics as a science ,HB71-74 - Abstract
El artículo analiza el impacto de los comentarios en redes sociales sobre el rendimiento de las acciones de los bancos en el mercado de valores de EE.UU. Se empleó inteligencia artificial para monitorear y extraer comentarios en tiempo real, y se utilizó el procesamiento de lenguaje natural para calcular el sentimiento de cada comentario. Los comentarios se clasificaron como positivos o negativos y se agregaron, por hora, para cada banco durante el período observado. Los resultados mostraron que tanto los comentarios positivos como los negativos tienen un efecto significativo en el rendimiento de las acciones, con un impacto asimétrico más pronunciado en el caso de los comentarios negativos. Este estudio contribuye a la comprensión de cómo la interacción en redes sociales puede influir en el valor de mercado de las empresas y destaca la importancia para las compañías que cotizan en bolsa de monitorear y gestionar la percepción en línea.
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- 2024
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20. Water insecurity among seasonal agriculture workers: perspectives from Spanish professionals
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Luis Alejandro Rodríguez-Guerrero, Iratxe Pérez-Urdiales, Astrid Escrig-Piñol, María del Mar Jiménez-Lasserrotte, María del Mar Pastor-Bravo, José Tomás Mateos, and Erica Briones-Vozmediano
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Transients and migrants ,Agricultural workers’ diseases ,Water intoxication ,COVID-19 ,Qualitative research ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Migrant seasonal agricultural workers face conditions of material vulnerability such as inadequate housing difficulties prevent access to running water supplies. The purpose of this study is to explore the perceptions of professionals involved in the care and support of seasonal migrant agricultural workers, as it relates to water access and water consumption and their impact on these workers’ health, in a context of COVID-19 pandemic. Methods: A qualitative exploratory and descriptive study was conducted in 2021 as part of a larger research project, based on 63 personal semi-structured interviews with professionals who provided support to seasonal migrant agricultural workers in three Spanish autonomous regions. COREQ checklist was used for reporting. The interviews were recorded, transcribed, and imported into ATLAS.ti-9 for an inductive thematic analysis. Results: The results have been structured into two main themes: (1) Accessing and obtaining water; and (2) Health problems related to water consumption. Seasonal migrant agricultural workers experience barriers to obtaining safe water for hygiene, cleaning, food preparation and drinking. The implementation of regulations to reduce COVID-19 transmission resulted in improved hygiene levels in the migrants’ quarters, including access to safe drinking water. Conclusion: This study suggests that water insecurity experienced by migrant seasonal agricultural workers in Spain results from their poor living conditions and causes health problems related to a lack of hygiene and the use of unsafe water. Sustainable solutions are needed beyond the pandemic in order to provide migrant workers with adequate living conditions and ensure their water needs are fulfilled.
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- 2024
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21. Navigating the Pitfalls: Analyzing the Behavior of LLMs as a Coding Assistant for Computer Science Students—A Systematic Review of the Literature
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Farman Ali Pirzado, Awais Ahmed, Roman Alejandro Mendoza-Urdiales, and Hugo Terashima-Marin
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Large language models ,computing education ,code generation ,code explanation ,programming error messages explanation ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
In recent years, large language models (LLMs) have been employed significantly in different domains of computing education. Nevertheless, these models have been focused on essential adherence to their integration as coding assistants in computing education. However, attention has been switched to thoroughly examining and analyzing LLM behavior, particularly in computing education for programming tasks such as code generation, code explanation, and programming error message explanation. Therefore, it becomes imperative to understand their behavior to examine potential pitfalls. This article addresses this gap systematically and details how different LLM-based coding chatbots, such as ChatGPT, Codex, Copilot, and others, react to various coding inputs within computing education. To achieve this objective, we collected and analyzed articles from 2021 to 2024, and 72 studies were thoroughly examined. These objectives include investigating the existing limitations and challenges associated with utilizing these systems for coding tasks, assessing their responses to prompts containing coding syntax, examining the impact of their output on student learning, and evaluating their performance as debugging tools. The findings of this review highlight that it is premature to incorporate these systems into computing education due to their limitations that may limit their effectiveness as comprehensive coding assistants for computer science students. These limitations include issues with handling prompts containing code snippets, potential negative impacts on student learning, limited debugging capabilities, and other ineffectiveness. The finding also reports multiple research directions that can be considered in future research related to LLMs in computing education.
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- 2024
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22. Exploring the influence of circulating endocannabinoids and nucleus accumbens functional connectivity on anorexia nervosa severity
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Miranda-Olivos, Romina, Baenas, Isabel, Steward, Trevor, Granero, Roser, Pastor, Antoni, Sánchez, Isabel, Juaneda-Seguí, Asier, del Pino-Gutiérrez, Amparo, Fernández-Formoso, José A., Vilarrasa, Nuria, Guerrero-Pérez, Fernando, Virgili, Nuria, López-Urdiales, Rafael, Jiménez-Murcia, Susana, de la Torre, Rafael, Soriano-Mas, Carles, and Fernández-Aranda, Fernando
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- 2023
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23. Implementación de la guía El maltrato contra las mujeres: cribado, identificación y respuesta inicial de la Registered Nurses’ Association of Ontario (RNAO)
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Diaz-Gonzalez, Marisol, Larrinaga-Llaguno, Maite, Pérez-Urdiales, Iratxe, Vallejo-De la Hoz, Gorka, Garate-Echenique, Lucía, and Tíscar-González, Verónica
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violencia de género ,centros de salud ,enfermeras y enfermeros ,personal de salud ,guía de práctica clínica ,gender-based violence ,community health centers ,nurses ,health personnel ,practice guideline ,violência de gênero ,centros de saúde ,pessoal de saúde ,guia de prática clínica ,enfermeiras e enfermeiros ,Medicine - Abstract
RESUMEN Introducción. La Organización Mundial de la Salud considera la violencia de género como un grave problema de salud pública. Una de cada cuatro mujeres entre 15 y 49 años ha sufrido violencia de género a lo largo de su vida desde los 15 años, esto conlleva graves consecuencias para la salud no solo de las mujeres sino también de sus hijas e hijos. Desde la Organización Sanitaria Integrada Bilbao-Basurto y la Universidad del País Vasco existe el compromiso de dar respuesta a este importante problema a través de la implementación de la Guía de Buenas Prácticas: El maltrato contra las mujeres: cribado, identificación y respuesta inicial. Objetivo. Reflexionar acerca del proceso de implementación en los ámbitos asistencial y académico de la guía de buenas prácticas clínicas sobre “El maltrato contra las mujeres de la Registered Nurses’ Association of Ontario RNAO: cribado, identificación y respuesta inicial. Temas de reflexión. En este artículo se abordarán dos temas de reflexión: 1) Descripción de la metodología de implementación. 2) Descripción de cada una de las fases, tanto en el ámbito clínico como académico. Conclusiones. La Guía de Buenas prácticas “El maltrato contra las mujeres de la RNAO: cribado, identificación y respuesta inicial”, presenta una herramienta útil para la implementación de buenas prácticas en los sistemas sanitarios que ayudan a la lucha contra la violencia de género. Las enfermeras y otros profesionales de la salud se encuentran en una posición privilegiada para ayudar a las mujeres que sufren abuso/violencia de su pareja íntima. Palabras clave: Violencia de Género; Centros de Salud; Enfermeras y Enfermeros; Personal de Salud; Guía de Práctica Clínica ABSTRACT Introduction. The World Health Organization considers gender-based violence to be a severe public health problem. One in four women between 15 and 49 years of age has suffered gender-based violence in her lifetime since the age of 15. It has severe consequences for the health not only of women but also of their children. The Bilbao-Basurto Integrated Health Organization and the University of the Basque Country are committed to responding to this critical problem through the implementation of the Good Practice Guide: Abuse against Women: Screening, identification, and initial response. Objective. To reflect on the process of implementation of the good clinical practice guide on “Abuse against women in the RNAO: screening, identification and initial response”. Reflection topics. This article will address two topics for reflection: 1) Description of the implementation methodology. 2) Description of each of the phases, both clinically and academically. Conclusions. The RNAO Good Practice Guide: “RNAO Woman Abuse: Screening, identification and initial response”, presents a useful tool for implementing exemplary practices in health systems that help in the fight against gender-based violence. Nurses and other health professionals are in a privileged position to assist women in the fight agains t gender-based violence. Keywords: Gender-Based Violence; Community Health Centers; Nurses; Health Personnel; Practice Guideline RESUMO Introdução. A Organização Mundial da Saúde considera a violência de gênero um grave problema de saúde pública. Uma em cada quatro mulheres entre 15 e 49 anos de idade sofreu violência de gênero durante a vida, desde os 15 anos. Ela tem sérias consequências para a saúde não apenas das mulheres, mas também de seus filhos. A Organização Integrada de Saúde de Bilbao-Basurto e a Universidade do País Basco estão comprometidas em responder a esse importante problema por meio da implementação do Guia de Boas Práticas: Abuso contra mulheres: triagem, identificação e resposta inicial. Objetivo. Refletir sobre o processo de implementação do guia de boas práticas clínicas sobre “Abuso de mulheres na RNAO: triagem, identificação e resposta inicial”. Temas para reflexão. Este artigo abordará dois tópicos para reflexão: 1) Descrição da metodologia de implementação. 2) Descrição de cada uma das fases, tanto em ambientes clínicos quanto acadêmicos. Conclusões. O Guia de Boas Práticas da RNAO: “RNAO Woman Abuse: Screening, Identification and Initial Response” (Abuso de mulheres na RNAO: triagem, identificação e resposta inicial), apresenta uma ferramenta útil para a implementação de boas práticas nos sistemas de saúde para auxiliar na luta contra a violência de gênero. Os enfermeiros e outros profissionais de saúde estão em uma posição única para ajudar as mulheres na luta contra a violência de gênero. Palavras-chave: Violência de Gênero; Centros de Saúde; Enfermeiras e Enfermeiros; Pessoal de Saúde; Guia de Prática Clínica
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- 2023
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24. Fallo ovárico prematuro en supervivientes a un tumor sólido: puntos clave de manejo
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Carmen Garrido Colino, Paula González Urdiales, Antonio Molinés Honrubia, María José Ortega Acosta, and Mirian García Abos
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Primary ovarian insufficiency ,Solid tumours ,Childhood ,Adolescence ,Cancer ,Survivors ,Pediatrics ,RJ1-570 - Abstract
Resumen: Introducción: La insuficiencia ovárica prematura (POI) conlleva importante morbilidad, causando infertilidad, disfunción sexual, disminución de la densidad ósea, riesgo cardiovascular, alteraciones emocionales y mortalidad precoz. Objetivo: Conocer la incidencia y el manejo actual de la POI en supervivientes a un tumor sólido en la infancia y/o adolescencia en nuestro medio. Material y métodos: Estudio observacional multicéntrico. Mujeres entre 12 y 18 años con diagnóstico de tumor sólido y criterios clínicos y/o analíticos de POI. El riesgo se estima según los criterios «The Pediatric Initiative Network of the Oncofertility Consortium». Resultados: Incidencia de 1,5 (30 casos de POI). Edad media 14 ± 2,09. Los tumores sólidos que más se asociaron a la POI fueron: sarcoma de Ewing, tumores cerebrales y germinales. El 83% de los casos no realizó preservación previa al tratamiento. Un 63% no referían menarquia al diagnóstico de la POI. El 97% cumplían criterios de alto riesgo de toxicidad gonadal, a pesar de ello el 47% no realizó ninguna vigilancia previa al diagnóstico. La mediana de tiempo tras el diagnóstico y la aparición del evento es de 43,5 y 29,5 meses tras finalizar tratamiento. Las curvas de Kaplan-Meier, muestran que al 30% de los casos, aparecen en los 2 años tras el diagnóstico y las mujeres con estadio puberal 1 desarrollan insuficiencia más tardíamente que aquellas con estadio 5. Conclusiones: El seguimiento de mujeres en riesgo de la POI, es susceptible de mejora. Las herramientas actuales facilitan conocer el riesgo al planificar los tratamientos del tumor y realizar vigilancia, educación, diagnóstico precoz, preservación e instauración de tratamiento sustitutivo. Todo ello, supondría importantes mejoras en salud. Abstract: Introduction: Primary ovarian insufficiency (POI) carries significant morbidity, causing infertility, sexual disfunction, decreased bone density, cardiovascular risk, emotional distress and early mortality. Objective: To know the incidence and current management of POI in childhood/adolescent solid tumour survivors. Material and methods: We conducted a multicentre observational study. It included female patients aged 12 to 18 years with a diagnosis of solid tumour and meeting clinical or biochemical criteria for POI. The risk was estimated based on the criteria of the Pediatric Initiative Network of the Oncofertility Consortium. Results: We found an incidence of 1.5 (30 cases of POI): The median age at the time of the event was 14 years (standard deviation, 2.09). The solid tumours associated most frequently with POI were Ewing sarcoma and brain and germ cell tumours. Eighty-three percent of patients did not undergo fertility preservation. Sixty-three percent reported not having undergone menarche at the time of ovarian failure. Ninety-seven percent were at high risk of gonadal toxicity, yet 47% were not monitored before the diagnosis. The median time elapsed to the occurrence of the event was 43.5 months after diagnosis and 29.5 months after completing treatment. The Kaplan-Meier curves showed that approximately 30% of POI cases developed within 2 years of diagnosis and that women at Tanner stage 1 developed insufficiency later than women at Tanner stage 5. Conclusions: There is room for improvement in the followup of women at risk of POI in Spain. The tools currently available facilitate risk assessment at the time of treatment planning and allow the implementation of monitoring, education, early diagnosis, fertility preservation, and replacement therapy as needed. All of this would achieve significant improvement in health outcomes.
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- 2023
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25. Primary ovarian insufficiency in cancer survivors: Keys to optimal management
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Carmen Garrido Colino, Paula González Urdiales, Antonio Molinés Honrubia, María José Ortega Acosta, and Mirian García Abos
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Insuficiencia ovárica prematura ,Tumor sólido ,Infancia ,Adolescencia ,Cáncer ,Supervivientes ,Pediatrics ,RJ1-570 - Abstract
Introduction: Primary ovarian insufficiency (POI) carries significant morbidity, causing infertility, sexual disfunction, decreased bone density, cardiovascular risk, emotional distress and early mortality. Objective: To know the incidence and current management of POI in childhood/adolescent solid tumour survivors. Material and methods: We conducted a multicentre observational study. It included female patients aged 12–18 years with a diagnosis of solid tumour and meeting clinical or biochemical criteria for POI. The risk was estimated based on the criteria of the Pediatric Initiative Network of the Oncofertility Consortium. Results: We found an incidence of 1.5 (30 cases of POI): The median age at the time of the event was 14 years (standard deviation, 2.09). The solid tumours associated most frequently with POI were Ewing sarcoma and brain and germ cell tumours. Eighty-three percent of patients did not undergo fertility preservation. Sixty-three percent reported not having undergone menarche at the time of ovarian failure. Ninety-seven percent were at high risk of gonadal toxicity, yet 47% were not monitored before the diagnosis. The median time elapsed to the occurrence of the event was 43.5 months after diagnosis and 29.5 months after completing treatment. The Kaplan-Meier curves showed that approximately 30% of POI cases developed within 2 years of diagnosis and that women at Tanner stage 1 developed insufficiency later than women at Tanner stage 5. Conclusions: There is room for improvement in the follow-up of women at risk of POI in Spain. The tools currently available facilitate risk assessment at the time of treatment planning and allow the implementation of monitoring, education, early diagnosis, fertility preservation, and replacement therapy as needed. All of this would achieve significant improvement in health outcomes. Resumen: Introducción: La insuficiencia ovárica prematura (POI) conlleva importante morbilidad, causando infertilidad, disfunción sexual, disminución de la densidad ósea, riesgo cardiovascular, alteraciones emocionales y mortalidad precoz. Objetivo: Conocer la incidencia y manejo actual de POI en supervivientes a un tumor sólido en la infancia y / o adolescencia en nuestro medio. Material y métodos: Estudio observacional multicéntrico. Mujeres entre 12 y 18 años con diagnóstico de tumor sólido y criterios clínicos y/o analíticos de POI. El riesgo se estima según los criterios” The Pediatric Initiative Network of the Oncofertility Consortium”. Resultados: Incidencia de 1.5 (30 casos de POI). Mediana de edad 14 ± 2,09. Los tumores sólidos que más se asociaron a POI fueron: sarcoma de Ewing, tumores cerebrales y germinales. El 83% de los casos no realizó preservación previa al tratamiento. Un 63% no referían menarquia al diagnóstico de POI. 97% cumplían criterios de alto riesgo de toxicidad gonadal, a pesar de ello el 47% no realizó ninguna vigilancia previa al diagnóstico. La mediana de tiempo tras el diagnóstico y la aparición del evento es de 43,5 y 29,5 meses tras finalizar tratamiento. Las curvas de Kaplan- Meier, muestran que a el 30% de los casos, aparecen en los dos años tras el diagnóstico y las mujeres con estadio puberal 1 desarrollan insuficiencia más tardíamente que aquellas con estadio 5. Conclusiones: El seguimiento de mujeres en riesgo de POI, es susceptible de mejora. Las herramientas actuales facilitan conocer el riesgo al planificar los tratamientos del tumor y realizar vigilancia, educación, diagnóstico precoz, preservación e instauración de tratamiento sustitutivo. Todo ello, supondría importantes mejoras en salud.
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- 2023
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26. Social sentiment and impact in US equity market: an automated approach
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Nuñez-Mora, José Antonio and Mendoza-Urdiales, Román A.
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- 2023
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27. Drivers of accelerated warming in Mediterranean climate-type regions
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Urdiales-Flores, Diego, Zittis, George, Hadjinicolaou, Panos, Osipov, Sergey, Klingmüller, Klaus, Mihalopoulos, Nikos, Kanakidou, Maria, Economou, Theo, and Lelieveld, Jos
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- 2023
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28. Identification of germline cancer predisposition variants in pediatric sarcoma patients from somatic tumor testing
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Alba-Pavón, Piedad, Alaña, Lide, Gutierrez-Jimeno, Miriam, García-Obregón, Susana, Imízcoz, Teresa, Panizo, Elena, González-Urdiales, Paula, Echebarria-Barona, Aizpea, Lopez Almaraz, Ricardo, Zaldumbide, Laura, Astigarraga, Itziar, Patiño-García, Ana, and Villate, Olatz
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- 2023
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29. Spelling Correction with Denoising Transformer
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Kuznetsov, Alex and Urdiales, Hector
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Computer Science - Computation and Language ,Computer Science - Artificial Intelligence ,Computer Science - Machine Learning - Abstract
We present a novel method of performing spelling correction on short input strings, such as search queries or individual words. At its core lies a procedure for generating artificial typos which closely follow the error patterns manifested by humans. This procedure is used to train the production spelling correction model based on a transformer architecture. This model is currently served in the HubSpot product search. We show that our approach to typo generation is superior to the widespread practice of adding noise, which ignores human patterns. We also demonstrate how our approach may be extended to resource-scarce settings and train spelling correction models for Arabic, Greek, Russian, and Setswana languages, without using any labeled data., Comment: 9 pages, 3 figures
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- 2021
30. Turning around Cycles: An Approach Based on Selected Problems/Cases to Stimulate Collaborative Learning about Krebs And His Four Metabolic Cycles
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Miguel Ángel Medina, Ángel Luis Garci´a-Ponce, Ángel Blanco-Lo´pez, Ana R. Quesada, José Luis Urdiales, Ignacio Fajardo, Fernanda Sua´rez, and Francisco José Alonso-Carrio´n
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Metabolism is a challenging subject for bioscience students due to the intrinsic complexity of the metabolic network, as well as that of the overlapping mechanisms of metabolic regulation. Collaborative learning based on a problem-based learning approach can help students to successfully learn and understand metabolism. In the present article, we propose a selection of exercises, problems, and cases aimed to focus students' attention on the scientific work made by Sir Hans Krebs and his collaborators to elucidate four main metabolic cycles, as well as on the study of these cycles, their regulation, and their metabolic integration. The objectives, the tools, and the implementation of this proposal are described, and the results obtained during its first implementation with volunteer students enrolled in two courses on metabolic regulation at our university are presented and discussed. These volunteer students signed a learning contract and were randomly distributed in small groups (3-4 students each). Application of this collaborative learning activity to our classrooms has been very satisfactory, as evidenced by an improvement in the volunteers' academic performance and a very positive perception by most of them, who declared to be "very satisfied" or "satisfied" with their experience and felt that they had learned more.
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- 2022
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31. The bidirectional longitudinal association between health-related quality of life and academic performance in adolescents: DADOS study
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Adelantado-Renau, Mireia, Monzonís-Carda, Irene, Moliner-Urdiales, Diego, and Beltran-Valls, Maria Reyes
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- 2023
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32. Drivers of accelerated warming in Mediterranean climate-type regions
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Diego Urdiales-Flores, George Zittis, Panos Hadjinicolaou, Sergey Osipov, Klaus Klingmüller, Nikos Mihalopoulos, Maria Kanakidou, Theo Economou, and Jos Lelieveld
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Environmental sciences ,GE1-350 ,Meteorology. Climatology ,QC851-999 - Abstract
Abstract The near-surface temperature in Mediterranean climate-type regions has increased overall similarly or more rapidly than the global mean rates. Although these regions have comparable climate characteristics and are located at similar latitudes, recent warming acceleration is most pronounced in the Mediterranean Basin. Here, we investigate the contributions of several climate drivers to regional warming anomalies. We consider greenhouse gases, aerosols, solar irradiance, land–atmosphere interactions, and natural climate variability modes. Our results highlight the dominant role of anthropogenic greenhouse gas radiative forcing in all Mediterranean climate-type regions, particularly those in the northern hemisphere. In the Mediterranean Basin, the recent warming acceleration is largely due to the combined effect of declining aerosols and a negative trend in near-surface soil moisture. While land-atmosphere feedbacks are also important in other locations (e.g., California and Southern Africa), this synergy is unique in the Mediterranean Basin. These two regional climate drivers have natural and anthropogenic components of equivalent importance. Such feedbacks are not fully resolved in the current regional climate projections.
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- 2023
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33. Effect of an enhanced public health contact tracing intervention on the secondary transmission of SARS-CoV-2 in educational settings: The four-way decomposition analysis
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Olivera Djuric, Elisabetta Larosa, Mariateresa Cassinadri, Silvia Cilloni, Eufemia Bisaccia, Davide Pepe, Laura Bonvicini, Massimo Vicentini, Francesco Venturelli, Paolo Giorgi Rossi, Patrizio Pezzotti, Alberto Mateo Urdiales, Emanuela Bedeschi, and The Reggio Emilia Covid-19 Working Group
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COVID-19 ,schools ,attack rate ,contact tracing ,mediation analysis ,Medicine ,Science ,Biology (General) ,QH301-705.5 - Abstract
Background: The aim of our study was to test the hypothesis that the community contact tracing strategy of testing contacts in households immediately instead of at the end of quarantine had an impact on the transmission of SARS-CoV-2 in schools in Reggio Emilia Province. Methods: We analysed surveillance data on notification of COVID-19 cases in schools between 1 September 2020 and 4 April 2021. We have applied a mediation analysis that allows for interaction between the intervention (before/after period) and the mediator. Results: Median tracing delay decreased from 7 to 3.1 days and the percentage of the known infection source increased from 34–54.8% (incident rate ratio-IRR 1.61 1.40–1.86). Implementation of prompt contact tracing was associated with a 10% decrease in the number of secondary cases (excess relative risk –0.1 95% CI –0.35–0.15). Knowing the source of infection of the index case led to a decrease in secondary transmission (IRR 0.75 95% CI 0.63–0.91) while the decrease in tracing delay was associated with decreased risk of secondary cases (1/IRR 0.97 95% CI 0.94–1.01 per one day of delay). The direct effect of the intervention accounted for the 29% decrease in the number of secondary cases (excess relative risk –0.29 95%–0.61 to 0.03). Conclusions: Prompt contact testing in the community reduces the time of contact tracing and increases the ability to identify the source of infection in school outbreaks. Although there are strong reasons for thinking it is a causal link, observed differences can be also due to differences in the force of infection and to other control measures put in place. Funding: This project was carried out with the technical and financial support of the Italian Ministry of Health – CCM 2020 and Ricerca Corrente Annual Program 2023.
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- 2024
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34. Estrés y ansiedad en estudiantes de enfermería durante la primera ola de la pandemia de COVID-19
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Juana Robledo Martín, Lorena Acea López, María Teresa Alcolea Cosín, Iratxe Pérez Urdiales, Filip Bellon, Cristina Oter Quintana, Joan Blanco Blanco, Esther Rubinat Arnaldo, María del Mar Pastor Bravo, and Erica Briones Vozmediano
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anxiety ,COVID-19 ,nursing students ,mental health ,stress disorders ,Industrial medicine. Industrial hygiene ,RC963-969 - Abstract
Objective: To compare anxiety and acute stress levels among nursing students who joined the labour market during the first wave of the COVID-19 pandemic and those who did not. Methods: A cross-sectional, multicentre descriptive study across three Spanish public universities. A total of 216 nursing students participated in our study. Data collection was carried through an online questionnaire, that included variables on conditions for entering the labour market, the Zung Anxiety Self-Assessment Scale and the Stanford Acute Stress Reaction Questionnaire. We performed univariate and multivariate analyses. Results: Overall, 42.6% (n=92) of the students entered the labour market during the first wave of the COVID-19 pandemic. The global anxiety score was x?=36.31 (SD=5.71) and the stress score was x?=82.39 (SD=30.84). Lower anxiety levels were observed among those who joined the labour market (x?=35.67; SD=5.78) as compared to those who did not (x?=36.73; SD=5.67). Overall 92.4% of the students were acutely stressed. Acute stress was higher among those who did not work (x?=84.35; SD=32.38) and significantly in women. Conclusions: Nursing students were able to cope with stress in situations such as the COVID-19 pandemic. A healthy worker effect could not be ruled out. Stress and anxiety among nursing students should be considered by clinical practice preceptors and at the time students first enter the labour market.
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- 2024
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35. Towards Autonomous Driving: a Multi-Modal 360$^{\circ}$ Perception Proposal
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Beltrán, Jorge, Guindel, Carlos, Cortés, Irene, Barrera, Alejandro, Astudillo, Armando, Urdiales, Jesús, Álvarez, Mario, Bekka, Farid, Milanés, Vicente, and García, Fernando
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Computer Science - Computer Vision and Pattern Recognition ,Computer Science - Robotics - Abstract
In this paper, a multi-modal 360$^{\circ}$ framework for 3D object detection and tracking for autonomous vehicles is presented. The process is divided into four main stages. First, images are fed into a CNN network to obtain instance segmentation of the surrounding road participants. Second, LiDAR-to-image association is performed for the estimated mask proposals. Then, the isolated points of every object are processed by a PointNet ensemble to compute their corresponding 3D bounding boxes and poses. Lastly, a tracking stage based on Unscented Kalman Filter is used to track the agents along time. The solution, based on a novel sensor fusion configuration, provides accurate and reliable road environment detection. A wide variety of tests of the system, deployed in an autonomous vehicle, have successfully assessed the suitability of the proposed perception stack in a real autonomous driving application., Comment: Accepted for publication in IEEE ITSC 2020
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- 2020
36. The relationship between human mobility and viral transmissibility during the COVID-19 epidemics in Italy
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Cintia, Paolo, Pappalardo, Luca, Rinzivillo, Salvatore, Fadda, Daniele, Boschi, Tobia, Giannotti, Fosca, Chiaromonte, Francesca, Bonato, Pietro, Fabbri, Francesco, Penone, Francesco, Savarese, Marcello, Calabrese, Francesco, Guzzetta, Giorgio, Riccardo, Flavia, Marziano, Valentina, Poletti, Piero, Trentini, Filippo, Bella, Antonino, Andrianou, Xanthi, Del Manso, Martina, Fabiani, Massimo, Bellino, Stefania, Boros, Stefano, Urdiales, Alberto Mateo, Vescio, Maria Fenicia, Brusaferro, Silvio, Rezza, Giovanni, Pezzotti, Patrizio, Ajelli, Marco, Merler, Stefano, Vineis, Paolo, and Pedreschi, Dino
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Computer Science - Social and Information Networks ,Physics - Physics and Society ,Statistics - Applications - Abstract
In 2020, countries affected by the COVID-19 pandemic implemented various non-pharmaceutical interventions to contrast the spread of the virus and its impact on their healthcare systems and economies. Using Italian data at different geographic scales, we investigate the relationship between human mobility, which subsumes many facets of the population's response to the changing situation, and the spread of COVID-19. Leveraging mobile phone data from February through September 2020, we find a striking relationship between the decrease in mobility flows and the net reproduction number. We find that the time needed to switch off mobility and bring the net reproduction number below the critical threshold of 1 is about one week. Moreover, we observe a strong relationship between the number of days spent above such threshold before the lockdown-induced drop in mobility flows and the total number of infections per 100k inhabitants. Estimating the statistical effect of mobility flows on the net reproduction number over time, we document a 2-week lag positive association, strong in March and April, and weaker but still significant in June. Our study demonstrates the value of big mobility data to monitor the epidemic and inform control interventions during its unfolding.
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- 2020
37. The impact of a nation-wide lockdown on COVID-19 transmissibility in Italy
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Guzzetta, Giorgio, Riccardo, Flavia, Marziano, Valentina, Poletti, Piero, Trentini, Filippo, Bella, Antonino, Andrianou, Xanthi, Del Manso, Martina, Fabiani, Massimo, Bellino, Stefania, Boros, Stefano, Urdiales, Alberto Mateo, Vescio, Maria Fenicia, Piccioli, Andrea, group, COVID-19 working, Brusaferro, Silvio, Rezza, Giovanni, Pezzotti, Patrizio, Ajelli, Marco, and Merler, Stefano
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Quantitative Biology - Populations and Evolution - Abstract
On March 10, 2020, Italy imposed a national lockdown to curtail the spread of COVID-19. Here we estimate that, fourteen days after the implementation of the strategy, the net reproduction number has dropped below the epidemic threshold - estimated range 0.4-0.7. Our findings provide a timeline of the effectiveness of the implemented lockdown, which is relevant for a large number of countries that followed Italy in enforcing similar measures., Comment: 6 pages, 3 figures; submitted
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- 2020
38. Maximum Likelihood Estimation of Stochastic Frontier Models with Endogeneity
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Centorrino, Samuele and Pérez-Urdiales, María
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Economics - Econometrics ,Statistics - Applications - Abstract
We propose and study a maximum likelihood estimator of stochastic frontier models with endogeneity in cross-section data when the composite error term may be correlated with inputs and environmental variables. Our framework is a generalization of the normal half-normal stochastic frontier model with endogeneity. We derive the likelihood function in closed form using three fundamental assumptions: the existence of control functions that fully capture the dependence between regressors and unobservables; the conditional independence of the two error components given the control functions; and the conditional distribution of the stochastic inefficiency term given the control functions being a folded normal distribution. We also provide a Battese-Coelli estimator of technical efficiency. Our estimator is computationally fast and easy to implement. We study some of its asymptotic properties, and we showcase its finite sample behavior in Monte-Carlo simulations and an empirical application to farmers in Nepal.
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- 2020
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39. Intelligent Natural Language Processing for Epidemic Intelligence
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Danilo Croce, Federico Borazio, Giorgio Gambosi, Roberto Basili, Daniele Margiotta, Antonio Scaiella, Martina Del Manso, Daniele Petrone, Andrea Cannone, Alberto Mateo Urdiales, Chiara Sacco, Patrizio Pezzotti, Flavia Riccardo, Daniele Mipatrini, Federica Ferraro, and Sobha Pilati
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Social Sciences ,Computational linguistics. Natural language processing ,P98-98.5 - Abstract
Epidemic Intelligence activities depend significantly on analysts’ ability to locate and aggregate heterogeneous and complex information promptly. The level of novelty of the targeted information is a challenge. The earlier events of interest are located the larger the benefit: more accurate and timely warnings can be made available by the analysts. In this work, the role of Natural Language Processing technologies is investigated. In particular, transformer-based encoding of Web documents (such as newspaper articles as well as epidemic bulletins) for the automatic recognition of events and relevant epidemic information is adopted and evaluated. The resulting framework is configured as a domain-specific meta-search methodology and as a possible basis for a novel generation of Web search environments supporting the Epidemic Intelligence analyst.
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- 2023
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40. Características transfusionales y hemovigilancia de los pacientes pediátricos con cáncer
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Adriana Inés Urdiales Valarezo and Enmanuel Isidoro Guerrero Quiroz
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Seguridad de la Sangre ,Transfusión Sanguínea ,Reacción a la Transfusión ,Neoplasias ,Pediatría ,Pediatrics ,RJ1-570 - Abstract
Introducción: La terapia transfusional no está libre de riesgos, siendo los pacientes hemato- oncológicos los mayores transfundidos, por ello la necesidad de la hemovigilancia. El objetivo del presente estudio fue identificar las características transfusionales y la hemovigilancia de los pacientes pediátricos con cáncer en el Instituto SOLCA-Cuenca, enero-diciembre 2021. Método: Se realizó un estudio descriptivo con todos los pacientes menores de 18 años que requirieron transfusiones y todas las hemotransfusiones realizadas en SOLCA-Cuenca 2021. Los datos fueron recolectados en un formulario previamente validado y se analizaron en el programa SPSS v25.0, presentándose como frecuencias, porcentajes, media y desviación estándar. Resultados: Se estudiaron 73 pacientes y 620 transfusiones, predominando: adolescentes (45.2 %), de sexo masculino (63 %), mestizos (98.6 %), urbanos (76.7%), grupo ORH+ (83.5 %). Con leucemia linfoblástica aguda células B (49.3 %) y quimioterapia de inducción (41.1 %). El 58.9 % tenían antecedente transfusional y 4.1 % reacción previa (urticaria). La media transfusional por paciente fue 8,49 y, 7,1% fueron premedicadas con esteroides; se transfundieron principalmente concentrados eritrocitarios (49%) por anemia (95.4 %) a 9,32ml/kg (media) en 121 a 180 minutos (56.9 %). Del 3.1 % de reacciones evidenciadas, el 100% fueron inmediatas, no infecciosas (urticaria 84.2 %), definitivas y se trataron con medicamentos (84.2 % esteroide); el 79 % de reacciones fueron leves; fueron secundarias a concentrados eritrocitarios (47.4 %), aféresis (47.4 %) y; evidenciadas en pacientes con leucemia linfoblástica aguda células B (31.5 %). Conclusiones: Los pacientes con leucemia linfoblástica aguda células B requirieron más transfusiones sanguíneas, principalmente concentrados eritrocitarios; mientras las reacciones transfusionales se asociaron frecuentemente a concentrados eritrocitarios y aféresis.
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- 2023
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41. Perceived distress in assisted gait with a four-wheeled rollator under stress induction conditions
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Marta Díaz-Boladeras, Xavier Llanas, Manuel Fernandez-Carmona, Andreu Català, Cristina Urdiales, Marta Musté, Elsa Pérez, and Àlex Barco
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stress assessment ,assisted gait analysis ,emotion elicitation ,stress induction tests ,Self-Assessment Manikin ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
AbstractIn assisted ambulation, the user’s psychological comfort has a significant impact not only on acceptability of mobility aids but also on overall gait performance. Specifically, in the case of rollators, negative states such as distress may result in balance loss, inefficient manoeuvres, and an increased risk of falling. This paper presents a pilot study to investigate the effect of distress on rollator assisted navigation. To achieve this goal, a novel test protocol is proposed to assess distress while walking with a rollator, using the Self-Assessment Manikin (SAM) questionnaire. First, the participant completes a standardised visual stress induction test and fills in a SAM questionnaire on the dimensions of arousal and valence, to establish personal benchmarks. Then, they complete a course consisting of four navigation tasks with different levels of difficulty that affect the rollator manoeuvrability, filling in a SAM questionnaire after each task. An experiment including 25 healthy volunteers has been completed. Our preliminary results show that stressors like uneven or sloping surfaces increase perceived stress, whereas the shape of the trajectory does not significantly affect stress. The ultimate purpose of this work is to validate a performance-oriented protocol to investigate the dynamics of stress response in assisted walk and to train automatic stress detection systems.
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- 2023
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42. Assessing the Impacts of Urban Water Use Restrictions at the District Level: A Case Study of California's Drought Mandate
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Perez-Urdiales, Maria and Baerenklau, Ken
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Water conservation ,Mandatory restrictions ,Efficiency analysis ,Stochastic frontier analysis ,Civil Engineering ,Environmental Engineering ,Applied Economics - Abstract
This paper estimates feasible water savings for a sample of nine urban water districts in California during the height of the 2012-16 drought, just prior to the implementation of mandatory water use reductions, using household production theory and stochastic frontier analysis. Estimates of feasible savings are compared to mandated reductions and actual reductions in each district. Although the mandated reductions were generally feasible, our results show that they had asymmetric impacts across districts and tended to impose larger burdens on some disadvantaged groups.
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- 2021
43. Amphibians and reptiles of Isla Santay (Durán, Ecuador)
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Keyko Cruz-García, Marissa Barreno, Stefania Cuadrado, M.D.M. Moretta-Urdiales, Natalia Molina-Moreira, Jaime A. Salas, Álvaro Torres-Domínguez, and Andrea E. Narváez
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Guayas ,introduced species ,urban diversity ,wetla ,Biology (General) ,QH301-705.5 - Abstract
Amphibian and reptile diversity from Isla Santay (Durán, Ecuador) has been underestimated due to the lack of monitoring throughout the island. Historically, this island has also been affected by anthropic landscape changes which limit the occurrence of certain species and favors the dispersion of opportunistic or more tolerant species. Such species dynamics tend to be more evident on islands, since their isolation limits species’ mobility. We present an updated checklist of the herpetofauna of Isla Santay Durán, Ecuador, and report for the first time the occurrence of two introduced species, Anolis sagrei Duméril & Bibron, 1837, Brown Anole, and Hemydactylus frenatus Duméril & Bibron, 1836.
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- 2023
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44. Reduction of the risk of severe COVID-19 due to Omicron compared to Delta variant in Italy (November 2021 – February 2022)
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Daniele Petrone, Alberto Mateo-Urdiales, Chiara Sacco, Flavia Riccardo, Antonino Bella, Luigina Ambrosio, Alessandra Lo Presti, Angela Di Martino, Emiliano Ceccarelli, Martina Del Manso, Massimo Fabiani, Paola Stefanelli, Patrizio Pezzotti, and AnnaTeresa Palamara
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SARS-CoV-2 ,Delta variant ,Omicron variant ,COVID-19 ,Hospitalization ,Death ,Infectious and parasitic diseases ,RC109-216 - Abstract
Objectives: During 2022, Omicron became the dominant SARS-CoV-2 variant in Europe. This study aims to assess the impact of such variant on severe disease from SARS-CoV-2 compared with the Delta variant in Italy. Methods: Using surveillance data, we assessed the risk of developing severe COVID-19 with Omicron infection compared with Delta in individuals aged ≥12 years using a multilevel negative binomial model adjusting for sex, age, vaccination status, occupation, previous infection, weekly incidence, and geographical area. We also analyzed the interaction between the sequenced variant, age, and vaccination status. Results: We included 21,645 cases of SARS-CoV-2 infection where genome sequencing found Delta (10,728) or Omicron (10,917), diagnosed from November 15, 2021 to February 01, 2022. Overall, 3,021 cases developed severe COVID-19. We found that Omicron cases had a reduced risk of severe COVID-19 compared with Delta cases (incidence rate ratio [IRR] = 0.77; 95% confidence interval [CI]: 0.70-0.86). The largest difference was observed in cases aged 40-59 (IRR = 0.66; 95% CI: 0.55-0.79), while no protective effect was found in those aged 12-39 (IRR = 1.03; 95% CI: 0.79-1.33). Vaccination was associated with a lower risk of developing severe COVID-19 in both variants. Conclusion: The Omicron variant is associated with a lower risk of severe COVID-19 compared to infection with the Delta variant, but the degree of protection varies with age.
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- 2023
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45. Risk of depression mediates the association between cardiorespiratory fitness and academic performance in adolescent boys and girls: DADOS study
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Monzonís-Carda, Irene, Adelantado-Renau, Mireia, Beltran-Valls, Maria Reyes, and Moliner–Urdiales, Diego
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- 2023
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46. Peer Tutoring as an Improvement Strategy for School Exploitation
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Guerrero Flores, Denisse Ibeth, Urdiales Ibarra, María Elena, Villarreal Treviño, María Guadalupe, Castro Campos, Claudia, and Loredo Tejeda, Alexis Tadeo
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To determine the effectiveness of a peer tutorial strategy in the school achievement of English to high school students, whose mother tongue is not English, we made a comparison of two groups; in one, peer tutoring was carried out through the support of high average students and compared with the results of a group that did not receive the intervention. The tutors were 121 students who scored higher than 80 points in the initial exam and accepted to participate in the program. The group of tutees was formed by those who obtained scores lower than 65 and accepted to be tutored (101 formed the experimental group and 112 the control group). The peer tutoring was done in the classroom with the monitoring of the teacher, lasted 11 weeks, and focused on taking class notes and comparing them, giving feedback and clarifying doubts for 30 minutes after the teacher's explanation. The results of the midterm exam and final exam were analyzed through the Student's t-test, showing significant differences in the group that was tutored compared to the low-performing students who did not receive the intervention. The procedure was effective, finding that the use of peer support can improve school performance. It is necessary to monitor the profile of the tutors and systematize the tutorial strategy.
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- 2018
47. A specific gut microbiota signature is associated with an enhanced GLP-1 and GLP-2 secretion and improved metabolic control in patients with type 2 diabetes after metabolic Roux-en-Y gastric bypass
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Laura Hernández-Montoliu, M-Mar Rodríguez-Peña, Rocío Puig, Brenno Astiarraga, Fernando Guerrero-Pérez, Nuria Virgili, Rafael López-Urdiales, Javier Osorio, Rosa Monseny, Claudio Lazzara, Lucía Sobrino, Manuel Pérez-Maraver, María Pérez-Prieto, Silvia Pellitero, Sonia Fernández-Veledo, Joan Vendrell, and Nuria Vilarrasa
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incretin ,microbiota ,type 2 diabetes remission ,severe obesity ,bariatric surgery ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
ObjectiveTo determine changes in incretins, systemic inflammation, intestinal permeability and microbiome modifications 12 months after metabolic RYGB (mRYGB) in patients with type 2 diabetes (T2D) and their relationship with metabolic improvement.Materials and methodsProspective single-center non-randomized controlled study, including patients with class II-III obesity and T2D undergoing mRYGB. At baseline and one year after surgery we performed body composition measurements, biochemical analysis, a meal tolerance test (MTT) and lipid test (LT) with determination of the area under the curve (AUC) for insulin, C-peptide, GLP-1, GLP-2, and fasting determinations of succinate, zonulin, IL-6 and study of gut microbiota.ResultsThirteen patients aged 52.6 ± 6.5 years, BMI 39.3 ± 1.4 kg/m2, HbA1c 7.62 ± 1.5% were evaluated. After mRYGB, zonulin decreased and an increase in AUC after MTT was observed for GLP-1 (pre 9371 ± 5973 vs post 15788 ± 8021 pM, P
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- 2023
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48. Association between ethnic background and COVID-19 morbidity, mortality and vaccination in England: a multistate cohort analysis using the UK Biobank
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Daniel Prieto-Alhambra, Albert Prats-Uribe, Martí Català, Clara Prats, Tomás Urdiales, and Francesco Dernie
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Medicine - Abstract
Objectives Despite growing evidence suggesting increased COVID-19 mortality among people from ethnic minorities, little is known about milder forms of SARS-CoV-2 infection. We sought to explore the association between ethnic background and the probability of testing, testing positive, hospitalisation, COVID-19 mortality and vaccination uptake.Design A multistate cohort analysis. Participants were followed between 8 April 2020 and 30 September 2021.Setting The UK Biobank, which stores medical data on around half a million people who were recruited between 2006 and 2010.Participants 405 541 subjects were eligible for analysis, limited to UK Biobank participants living in England. 23 891 (6%) of participants were non-white.Primary and secondary outcome measures The associations between ethnic background and testing, testing positive, hospitalisation and COVID-19 mortality were studied using multistate survival analyses. The association with single and double-dose vaccination was also modelled. Multistate models adjusted for age, sex and socioeconomic deprivation were fitted to estimate adjusted HRs (aHR) for each of the multistate transitions.Results 18 172 (4.5%) individuals tested positive, 3285 (0.8%) tested negative and then positive, 1490 (6.9% of those tested positive) were hospitalised, and 129 (0.6%) tested positive at the moment of hospital admission (ie, direct hospitalisation). Finally, 662 (17.4%) died after admission. Compared with white participants, Asian participants had an increased risk of negative to positive transition (aHR 1.24 (95% CI 1.02 to 1.52)), testing positive (95% CI 1.44 (1.33 to 1.55)) and direct hospitalisation (1.61 (95% CI 1.28 to 2.03)). Black participants had an increased risk of hospitalisation following a positive test (1.71 (95% CI 1.29 to 2.27)) and direct hospitalisation (1.90 (95% CI 1.51 to 2.39)). Although not the case for Asians (aHR 1.00 (95% CI 0.98 to 1.02)), black participants had a reduced vaccination probability (0.63 (95% CI 0.62 to 0.65)). In contrast, Chinese participants had a reduced risk of testing negative (aHR 0.64 (95% CI 0.57 to 0.73)), of testing positive (0.40 (95% CI 0.28 to 0.57)) and of vaccination (0.78 (95% CI 0.74 to 0.83)).Conclusions We identified inequities in testing, vaccination and COVID-19 outcomes according to ethnicity in England. Compared with whites, Asian participants had increased risks of infection and admission, and black participants had almost double hospitalisation risk, and a 40% lower vaccine uptake.
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- 2023
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49. Scalable Deep Unsupervised Clustering with Concrete GMVAEs
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Collier, Mark and Urdiales, Hector
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Computer Science - Machine Learning ,Statistics - Machine Learning - Abstract
Discrete random variables are natural components of probabilistic clustering models. A number of VAE variants with discrete latent variables have been developed. Training such methods requires marginalizing over the discrete latent variables, causing training time complexity to be linear in the number clusters. By applying a continuous relaxation to the discrete variables in these methods we can achieve a reduction in the training time complexity to be constant in the number of clusters used. We demonstrate that in practice for one such method, the Gaussian Mixture VAE, the use of a continuous relaxation has no negative effect on the quality of the clustering but provides a substantial reduction in training time, reducing training time on CIFAR-100 with 20 clusters from 47 hours to less than 6 hours.
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- 2019
50. A Framework for Analyzing Fog-Cloud Computing Cooperation Applied to Information Processing of UAVs
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Pinto, Milena F., Marcato, André L. M., Melo, Aurélio G., Honório, Leonardo M., and Urdiales, Cristina
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Computer Science - Robotics ,Computer Science - Networking and Internet Architecture - Abstract
Unmanned aerial vehicles (UAVs) are a relatively new technology. Their application can often involve complex and unseen problems. For instance, they can work in a cooperative-based environment under the supervision of a ground station to speed up critical decision-making processes. However, the amount of information exchanged among the aircraft and ground station is limited by high distances, low bandwidth size, restricted processing capability, and energy constraints. These drawbacks restrain large-scale operations such as large area inspections. New distributed state-of-the-art processing architectures, such as fog computing, can improve latency, scalability, and efficiency to meet time constraints via data acquisition, processing, and storage at different levels. Under these amendments, this research work proposes a mathematical model to analyze distribution-based UAVs topologies and a fog-cloud computing framework for large-scale mission and search operations. The tests have successfully predicted latency and other operational constraints, allowing the analysis of fog-computing advantages over traditional cloud-computing architectures., Comment: Volume 2019, Article ID 7497924, 14 pages
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- 2019
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