A Pseudo-Measure of Fuzziness

In this note we give an example of a gradationof openness (a fuzzy topology in Shostak’s sense) and deduce from it a pseudo-measure of fuzziness

A Note on Fixed Fuzzy Points for Fuzzy Mappings

We prove a fixed fuzzy point theorem for fuzzy contraction mappings (in the S. Heilpern’s sense) over a complete metric space, and as a consequence we obtain a fixed point theorem in the context of intuitionistic fuzzy sets

A contribution to fuzzy subspaces

[EN] We give a new concept of fuzzy topological subspace, which extends the usual one, and study in it the related concepts of interior, closure and conectedness.While working on this paper the authors have been partialy supported by a grant from UPV: "Incentivo a la investigación/99"Alamar, M.; Estruch, VD. (2002). A contribution to fuzzy subspaces. Applied General Topology. 3(1):13-23. doi:10.4995/agt.2002.2107SWORD13233

El estudio de aplicaciones de los sistemas de ecuaciones diferenciales ordinarias a través de artículos científicos

[ES] En el estudio de las Ecuaciones Diferenciales Ordinarias, y sistemas de estas, es importante la aplicación a casos reales a través de la modelización matemática. En la bibliografía existen muchas referencias a diversas aplicaciones clásicas: desintegración radiactiva, modelos de población depredador-presa, poblaciones de Lotka-Volterra o epidemias modelos SIR. En este trabajo mostramos cómo se ha ampliado el estudio de estas aplicaciones a través del manejo de artículos científicos disponibles en la red, en una asignatura optativa del Grado en Ingeniería de Sistemas de Telecomunicación, Sonido e Imagen en la EPSG, en una de sus unidades didácticas referida al estudio de las ecuaciones y sistemas de ecuaciones diferenciales. Nuestro alumnado ha trabajado con artículos científicos explorando otras aplicaciones o generalizaciones de las analizadas en clase: modelos matemáticos sobre las consecuencias de la vacunación, modelización y simulación del comportamiento epidemiológico de la gripe, una invasión zombi, modelado de la propagación de malware en redes de sensores inalámbricos, de ordenadores o en teléfonos móviles. Describiremos la metodología seguida, el trabajo realizado por el alumnado y su opinión.Este trabajo ha sido financiado por la Universitat Politécnica de València en el marco de los Proyectos de Innovación y Mejora Educativa (PIME/2017/B/15).Vidal Meló, A.; Estruch Fuster, VD. (2020). El estudio de aplicaciones de los sistemas de ecuaciones diferenciales ordinarias a través de artículos científicos. Editorial Universitat Politècnica de València. 671-679. https://doi.org/10.4995/INN2019.2019.10150OCS67167

La importancia de la sesión grupal en la clase inversa: Trabajos colaborativos en una asignatura de Matemáticas de Grado durante el curso 2016-2017

En este trabajo se describen algunos de los trabajos realizados durante el curso 2016-2017 por los estudiantes del Grado en Ingeniería de Sistemas de Telecomunicación, Sonido e Imagen de la Universitat Politècnica de València, en las prácticas de una asignatura anual del primer año, Matemáticas 2. La utilización de la Clase Inversa en dichas prácticas ha permitido dedicar las horas presenciales a la realización de trabajos colaborativos durante la sesión presencial o grupal. Se ha utilizado la plataforma PoliformaT a través de la cual profesores y estudiantes pueden compartir información sobre sus asignaturas así como utilizar herramientas para su gestión como son tareas, exámenes o la herramienta Lessons que permite la creación de contenidos e itinerarios formativos, facilitándonos la implementación de la clase inversa en esta asignatura. Durante las prácticas nuestros estudiantes han utilizado el programa Matlab consiguiendo entre todos varios productos finales, como una colección de gráficas de curvas en coordenadas paramétricas y polares, una colección de gráficas de superficies y una representación tridimensional de la Sierra de Bernia. Durante el curso se han realizado varios posters de estos resultados conjuntos que han sido expuestos en nuestro aulario, despertando el interés de profesores y estudiantes de otras asignaturas

Stime della biomassa marina attraverso il metodo acustico: discernimento delle specie e gestione delle risorse ittiche

[EN] Acoustics is the basics of the most important technologies for underwater telecommunication, as well as for target detection and identification in the aquatic media. Multiple frequency measurements are the key for species discrimination and open the door for sustainable fisheries. The development of wider broadband systems and quantitative multi-beam sonars and processing techniques constitute the present challenge for scientists and developers. In parallel, simpler and cost-efficient systems like satellite buoys can offer clue information for marine ecosystem monitoring or target species fisheries.[IT] Acoustics is the basics of the most important technologies for underwater telecommunication, as well as for target detection and identification in the aquatic media. Multiple frequency measurements are the key for species discrimination and open the door for sustainable fisheries. The development of wider broadband systems and quantitative multi-beam sonars and processing techniques constitute the present challenge for scientists and developers. In parallel, simpler and cost-efficient systems like satellite buoys can offer clue information for marine ecosystem monitoring or target species fisheries.We acknowledge the Associazione Italiana di Acustica the invitation and the opportunity of participating in the Symposium The SCIENCE OF ACOUSTICS serving the Food, the Nutrition and the Environment: From protection system to innovative technologies for agriculture and fisheries”, at the EXPO Milan (Italy), in September 2015. E. soliveres acknowledges support of Spanish Government grant AP2009-4459 FPU Subprogram.Espinosa Roselló, V.; Calise, L.; Estruch, VD.; Llorens Escrich, S.; Ordoñez Cebrián, P.; Pérez Arjona, I.; Puig Pons, V.... (2015). Acoustical estimation of fish biomass: species identification and stocks management. Rivista Italiana di Acustica. 39(3):15-21. http://hdl.handle.net/10251/63737S152139

Impact of mediterranean diet promotion on environmental sustainability: a longitudinal analysis

[EN]This article aims to estimate the differences in environmental impact (greenhouse gas [GHG] emissions, land use, energy used, acidification and potential eutrophication) after one year of promoting a Mediterranean diet (MD). Methods Baseline and 1-year follow-up data from 5800 participants in the PREDIMED-Plus study were used. Each participant's food intake was estimated using validated semi-quantitative food frequency questionnaires, and the adherence to MD using the Dietary Score. The influence of diet on environmental impact was assessed through the EAT-Lancet Commission tables. The influence of diet on environmental impact was assessed through the EAT-Lancet Commission tables. The association between MD adherence and its environmental impact was calculated using adjusted multivariate linear regression models.SIPublicación en abierto financiada por el Consorcio de Bibliotecas Universitarias de Castilla y León (BUCLE), con cargo al Programa Operativo 2014ES16RFOP009 FEDER 2014-2020 DE CASTILLA Y LEÓN, Actuación:20007-CL - Apoyo Consorcio BUCL

Total and Subtypes of Dietary Fat Intake and Its Association with Components of the Metabolic Syndrome in a Mediterranean Population at High Cardiovascular Risk

Background: The effect of dietary fat intake on the metabolic syndrome (MetS) and in turn on cardiovascular disease (CVD) remains unclear in individuals at high CVD risk. Objective: To assess the association between fat intake and MetS components in an adult Mediterranean population at high CVD risk. Design: Baseline assessment of nutritional adequacy in participants (n = 6560, men and women, 55-75 years old, with overweight/obesity and MetS) in the PREvención con DIeta MEDiterránea (PREDIMED)-Plus randomized trial. Methods: Assessment of fat intake (total fat, monounsatured fatty acids: MUFA, polyunsaturated fatty acids: PUFA, saturated fatty acids: SFA, trans-fatty acids: trans-FA, linoleic acid, α-linolenic acid, and ω-3 FA) using a validated food frequency questionnaire, and diet quality using 17-item Mediterranean dietary questionnaire and fat quality index (FQI). Results: Participants in the highest quintile of total dietary fat intake showed lower intake of energy, carbohydrates, protein and fiber, but higher intake of PUFA, MUFA, SFA, TFA, LA, ALA and ω-3 FA. Differences in MetS components were found according to fat intake. Odds (5th vs. 1st quintile): hyperglycemia: 1.3-1.6 times higher for total fat, MUFA, SFA and ω-3 FA intake; low high-density lipoprotein cholesterol (HDL-c): 1.2 higher for LA; hypertriglyceridemia: 0.7 lower for SFA and ω-3 FA intake. Conclusions: Dietary fats played different role on MetS components of high CVD risk patients. Dietary fat intake was associated with higher risk of hyperglycemia

Long daytime napping is associated with increased adiposity and type 2 diabetes in an elderly population with metabolic syndrome

Research examining associations between objectively-measured napping time and type 2 diabetes (T2D) is lacking. This study aimed to evaluate daytime napping in relation to T2D and adiposity measures in elderly individuals from the Mediterranean region. A cross-sectional analysis of baseline data from 2190 elderly participants with overweight/obesity and metabolic syndrome, in the PREDIMED-Plus trial, was carried out. Accelerometer-derived napping was measured. Prevalence ratios (PR) and 95% confidence intervals (CI) for T2D were obtained using multivariable-adjusted Cox regression with constant time. Linear regression models were fitted to examine associations of napping with body mass index (BMI) and waist circumference (WC). Participants napping ≥90 min had a higher prevalence of T2D (PR 1.37 (1.06, 1.78)) compared with those napping 5 to <30 min per day. Significant positive associations with BMI and WC were found in those participants napping ≥30 min as compared to those napping 5 to <30 min per day. The findings of this study suggest that longer daytime napping is associated with higher T2D prevalence and greater adiposity measures in an elderly Spanish population at high cardiovascular risk

Effectiveness of the physical activity intervention program in the PREDIMED-Plus study: a randomized controlled trial

Background: The development and implementation of effective physical activity (PA) intervention programs is challenging, particularly in older adults. After the first year of the intervention program used in the ongoing PREvención con DIeta MEDiterránea (PREDIMED)-Plus trial, we assessed the initial effectiveness of the PA component. Methods: PREDIMED-Plus is an ongoing randomized clinical trial including 6874 participants randomized to an intensive weight-loss lifestyle intervention based on an energy-restricted Mediterranean diet (MedDiet), physical activity promotion and behavioral support and to a control group using MedDiet recommendations but without calorie restriction or PA advice. Body mass index (BMI) and waist circumference (WC) are measured by standard clinical protocols. Duration and intensity of PA is self-reported using the validated REGICOR Short Physical Activity Questionnaire. The primary endpoint of the PREDIMED-Plus trial is a combined cardiovascular outcome: myocardial infarction (acute coronary syndromes with positive troponin test), stroke, or cardiovascular mortality. The present study involved secondary analysis of PA data (n = 6059; mean age 65 ± 4.9 years) with one-year changes in total, light, and moderate-to-vigorous PA within and between intervention groups as the outcome. Generalized estimating equation models were fitted to evaluate time trends of PA, BMI, and WC within groups and differences between intervention and control groups. Results: After 12 months, average daily MVPA increased by 27.2 (95%CI 5.7;48.7) METs-min/day and 123.1 (95%CI 109. 7–136.6) METs-min/day in the control and intervention groups, respectively. Total-PA, light-PA, and MVPA increased significantly (p < 0.01) in both groups. A significant (p < 0.001) time*intervention group interaction was found for Total-PA and MVPA, meaning the PA trajectory over time differed between the intervention and control groups. Age, sex, education level, and BMI did not moderate the effectiveness of the PA intervention. BMI and WC decreased significantly with increasing MVPA, compared with participants who reported no changes in MVPA.Conclusion: After one year of follow-up, the PREDIMED-Plus PA intervention has been effective in increasing daily PA in older adult