An Augmented Reality App to Learn to Interpret the Nutritional Information on Labels of Real Packaged Foods

[EN] Healthy eating habits involve controlling your diet. It is important to know how to interpret the nutritional information of the packaged foods that you consume. These packaged foods are usually processed and contain carbohydrates and fats. Monitoring carbohydrates intake is particularly important for weight-loss diets and for some pathologies such as diabetes. In this paper, we present an augmented reality app for helping interpret the nutritional information about carbohydrates in real packaged foods with the shape of boxes or cans. The app tracks the full object and guides the user in finding the surface or area of the real package where the information about carbohydrates is located using augmented reality and helps the user to interpret this information. The portions of carbohydrates (also called carb choices or carb servings) that correspond to the visualized food are shown. We carried out a study to check the effectiveness of our app regarding learning outcomes, usability, and perceived satisfaction. A total of 40 people participated in the study (20 men and 20 women). The participants were between 14 and 55 years old. The results reported that their initial knowledge about carb choices was very low. This indicates that education about nutritional information in packaged foods is needed. An analysis of the pre-knowledge and post-knowledge questionnaires showed that the users had a statistically significant increase in knowledge about carb choices using our app. Gender and age did not influence the knowledge acquired. The participants were highly satisfied with our app. In conclusion, our app and similar apps could be used to effectively learn how to interpret the nutritional information on the labels of real packaged foods and thus help users acquire healthy life habits.Juan, M.; Charco, JL.; García García, I.; Mollá Vayá, RP. (2019). An Augmented Reality App to Learn to Interpret the Nutritional Information on Labels of Real Packaged Foods. Frontiers in Computer Science. 1(1):1-16. https://doi.org/10.3389/fcomp.2019.00001S11611Akçayır, M., & Akçayır, G. (2017). Advantages and challenges associated with augmented reality for education: A systematic review of the literature. Educational Research Review, 20, 1-11. doi:10.1016/j.edurev.2016.11.002Azuma, R. T. (1997). A Survey of Augmented Reality. Presence: Teleoperators and Virtual Environments, 6(4), 355-385. doi:10.1162/pres.1997.6.4.355Barsom, E. Z., Graafland, M., & Schijven, M. P. (2016). Systematic review on the effectiveness of augmented reality applications in medical training. Surgical Endoscopy, 30(10), 4174-4183. doi:10.1007/s00464-016-4800-6Billinghurst, M., & Kato, H. (2002). Collaborative augmented reality. Communications of the ACM, 45(7), 64-70. doi:10.1145/514236.514265Bowman, D. A., & McMahan, R. P. (2007). 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Using Augmented Reality to Treat Phobias. IEEE Computer Graphics and Applications, 25(6), 31-37. doi:10.1109/mcg.2005.143Juan, M.-C., García-García, I., Mollá, R., & López, R. (2018). Users’ Perceptions Using Low-End and High-End Mobile-Rendered HMDs: A Comparative Study. Computers, 7(1), 15. doi:10.3390/computers7010015Juan, M.-C., Mendez-Lopez, M., Perez-Hernandez, E., & Albiol-Perez, S. (2014). Augmented Reality for the Assessment of Children’s Spatial Memory in Real Settings. PLoS ONE, 9(12), e113751. doi:10.1371/journal.pone.0113751Kerawalla, L., Luckin, R., Seljeflot, S., & Woolard, A. (2006). «Making it real»: exploring the potential of augmented reality for teaching primary school science. Virtual Reality, 10(3-4), 163-174. doi:10.1007/s10055-006-0036-4Kesim, M., & Ozarslan, Y. (2012). Augmented Reality in Education: Current Technologies and the Potential for Education. Procedia - Social and Behavioral Sciences, 47, 297-302. doi:10.1016/j.sbspro.2012.06.654Li, W., Nee, A., & Ong, S. (2017). A State-of-the-Art Review of Augmented Reality in Engineering Analysis and Simulation. Multimodal Technologies and Interaction, 1(3), 17. doi:10.3390/mti1030017Macias M, A. I., Gordillo S, L. G., & Camacho R, E. J. (2012). Hábitos alimentarios de niños en edad escolar y el papel de la educación para la salud. Revista chilena de nutrición, 39(3), 40-43. doi:10.4067/s0717-75182012000300006Augmented Reality Market by Offering (Hardware (Sensor, Displays and Projectors, Cameras), and Software), Device Type (Head-Mounted, Head-Up, Handheld), Application (Enterprise, Consumer, Commercial, Automotive) and Geography - Global forecast to 2023Augmented and Virtual Reality in Healthcare Market by Offering (Hardware and Software), Device Type, End User, Application (Patient Care Management, Medical Training and Education, Pharmacy Management, Surgery), and Geography - Global Forecast to 2023Meola, A., Cutolo, F., Carbone, M., Cagnazzo, F., Ferrari, M., & Ferrari, V. (2016). Augmented reality in neurosurgery: a systematic review. Neurosurgical Review, 40(4), 537-548. doi:10.1007/s10143-016-0732-9Nincarean, D., Alia, M. B., Halim, N. D. A., & Rahman, M. H. A. (2013). Mobile Augmented Reality: The Potential for Education. 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Visualization of multifractal superconductivity in a two-dimensional transition metal dichalcogenide in the weak-disorder regime

Eigenstate multifractality is a distinctive feature of non-interacting disordered metals close to a metal-insulator transition, whose properties are expected to extend to superconductivity. While multifractality in three dimensions (3D) only develops near the critical point for specific strong-disorder strengths, multifractality in 2D systems is expected to be observable even for weak disorder. Here we provide evidence for multifractal features in the superconducting state of an intrinsic weakly disordered single-layer NbSe$_2$ by means of low-temperature scanning tunneling microscopy/spectroscopy. The superconducting gap, characterized by its width, depth and coherence peaks' amplitude, shows a characteristic spatial modulation coincident with the periodicity of the quasiparticle interference pattern. Spatial inhomogeneity of the superconducting gap width, proportional to the local order parameter in the weak-disorder regime, follows a log-normal statistical distribution as well as a power-law decay of the two-point correlation function, in agreement with our theoretical model. Furthermore, the experimental singularity spectrum f($\alpha$) shows anomalous scaling behavior typical from 2D weakly disordered systems

Evaluación de Competencias: un Caso práctico en Materias de Química de Titulaciones de Ingeniería

Interesante caso práctic

Influence of Magnetic Ordering between Cr Adatoms on the Yu-Shiba-Rusinov States of the β-Bi2Pd Superconductor

We show that the magnetic ordering of coupled atomic dimers on a superconductor is revealed by their intragap spectral features. Chromium atoms on the superconductor β-Bi2Pd surface display Yu-Shiba-Rusinov bound states, detected as pairs of intragap excitations in tunneling spectra. By means of atomic manipulation with a scanning tunneling microscope's tip, we form Cr dimers with different arrangements and find that their intragap features appear either shifted or split with respect to single atoms. These spectral variations are associated with the magnetic coupling, ferromagnetic or antiferromagnetic, of the dimer, as confirmed by density functional theory simulations. The striking qualitative differences between the observed tunneling spectra prove that intragap Shiba states are extremely sensitive to the magnetic ordering on the atomic scaleWe thank Javier Zaldivar and Joeri de Bruijckere for developing the deconvolution process and Sebastian Bergeret for discussions. D.-J. C. and J. I. P. thank the European Union for support under the H2020-MSCA-IF-2014 Marie-Curie Individual Fellowship program (Proposal No. 654469), Spanish MINECO (MAT2016-78293-C6-1-R), Diputacion Foral de Gipuzkoa for Grant No. 64/15, and the European Regional Development Fund (ERDF). N. L. thanks Spanish MINECO (Grant No. MAT2015-66888-C3-2-R). M. M. U. acknowledges Spanish MINECO (MAT2014-60996-R). E. H., I. G., and H. S. acknowledge FIS2014-54498-R and MDM-2014-0377, COST MP16218 nanocohybri, ERC PNICTEYES Grant Agreement No. 679080, and Departamento Administrativo de Ciencia, Tecnología e Innovación, COLCIENCIAS (Colombia), Programa doctorados en el exterior and convocatoria 568-2012, as well as Comunidad de Madrid through program Nanofrontmag-CM (Grant No. S2013/MIT-2850

Aproximaciones metabolómica y transcriptómica a la gestión del metabolismo en las acículas de Pinus pinaster L. aiton

Aproximaciones metabolómica y transcriptómica a la gestión del metabolismo en las acículas de Pinus pinaster L. Aiton Rafael A. Cañas1, Javier Canales1, Carmen Muñoz2, Jose M. Granados1, Ma Belén Pascual1, Concepción Ávila1, María L. García-Martín2, Francisco M. Cánovas1. 1Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Instituto Andaluz de Biotecnología, Universidad de Málaga, Campus Universitario de Teatinos s/n, 29071, MÁLAGA. [email protected] 2Unidad de Nanoimagen, Centro Andaluz de Nanomedicina y Biotecnología (BIONAND), Parque Tecnológico de Andalucía, C/ Severo Ochoa 35, 29590 Campanillas (MÁLAGA) El pino marítimo (Pinus pinaster L. Aiton) es una conífera de hoja perenne con un ciclo de vida largo y cuyas acículas pueden permanecer activas en el árbol varios años. Las coníferas y, en concreto, P. pinaster son especies modelo en el contexto de la producción de madera o de la síntesis de los flavonoides y terpenoides, componentes de la resina. A pesar de ello, el metabolismo y la biología molecular de las hojas (acículas) de las coníferas han sido escasamente estudiados por lo que las relaciones entre los tejidos productores o fuentes y los tejidos consumidores o sumideros no son bien conocidas en este grupo de plantas. En este trabajo nos proponemos el estudio de las acículas desde dos aproximaciones distintas: la metabolómica y la transcriptómica. Para ello se han obtenido muestras de acículas de P. pinaster en condiciones naturales a lo largo de un año completo separando las acículas por su edad. El estudio metabolómico se ha desarrollado mediante H1-NMR para lo que se ha desarrollado una librería de espectros de referencia de 70 metabolitos diferentes. Para el estudio transcriptómico se ha empleado un microarray de cDNA con 8.000 puntos de hibridación (PINARRAY2) y que ha sido desarrollado por nuestro grupo de investigación. Para el estudio de los datos obtenidos se ha empleado un análisis de redes de co-expresión (WGCNA).Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Enhancing Energy Production with Exascale HPC Methods

High Performance Computing (HPC) resources have become the key actor for achieving more ambitious challenges in many disciplines. In this step beyond, an explosion on the available parallelism and the use of special purpose processors are crucial. With such a goal, the HPC4E project applies new exascale HPC techniques to energy industry simulations, customizing them if necessary, and going beyond the state-of-the-art in the required HPC exascale simulations for different energy sources. In this paper, a general overview of these methods is presented as well as some specific preliminary results.The research leading to these results has received funding from the European Union's Horizon 2020 Programme (2014-2020) under the HPC4E Project (www.hpc4e.eu), grant agreement n° 689772, the Spanish Ministry of Economy and Competitiveness under the CODEC2 project (TIN2015-63562-R), and from the Brazilian Ministry of Science, Technology and Innovation through Rede Nacional de Pesquisa (RNP). Computer time on Endeavour cluster is provided by the Intel Corporation, which enabled us to obtain the presented experimental results in uncertainty quantification in seismic imagingPostprint (author's final draft

Updating temperature and salinity mean values and trends in the Western Mediterranean: the RADMED project

Postprin

Dietary Patterns in Pregnancy and Biomarkers of Oxidative Stress in Mothers and Offspring: The NELA Birth Cohort

©. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Published, version of a Published Work that appeared in final form in Frontiers in nutrition. To access the final edited and published work see https://doi.org/10.3389/fnut.2022.869357Background: Although adherence to the Mediterranean and antioxidant-rich diets during pregnancy is suggested to improve maternal-fetal health by reducing oxidative stress, yet there is no study available. Objective: We examined whether maternal dietary patterns in pregnancy impact the biomarkers of oxidative stress in mothers and their offspring. Methods: Study population included 642 mothers and 335 newborns of the "Nutrition in Early Life and Asthma" (NELA) birth cohort. Maternal diet during pregnancy was assessed by a validated food frequency questionnaire and a priori-defined dietary indices (relative Mediterranean Diet [rMED], alternative Mediterranean Diet [aMED], Dietary Approach to Stop Hypertension [DASH], Alternate Healthy Index [AHEI], and AHEI-2010) were calculated. Biomarkers measured were: hydroperoxides, carbonyl groups, and 8-hydroxydeoxyguanosine (8OHdG) determined in maternal blood and newborn cord blood, and urinary maternal and offspring 15-F2t-isoprostane. Multivariate linear regression models were performed. Results: Maternal rMED score was inversely associated with the maternal levels of 8OHdG at mid-pregnancy (beta per 1-point increase = -1.61; 95% CI -2.82, -0.39) and the newborn levels of hydroperoxides (beta per 1-point increase = -4.54; 95% CI -9.32, 0.25). High vs. low maternal rMED score was marginally associated with the decreased levels of 8OHdG in newborns (beta = -9.17; 95% CI -19.9, 1.63; p for trend 0.079). Maternal DASH score tended to be inversely associated with maternal urinary 15-F2t-isoprostane (beta per 1-point increase = -0.69; 95% CI, -1.44, 0.06). High vs. low maternal AHEI score was associated with reduced offspring urinary levels of 15-F2t-isoprostane (beta = -20.2; 95% CI -38.0, -2.46; p for trend 0.026). Conclusion: These results suggest that maternal adherence to healthy dietary patterns during pregnancy may reduce DNA damage and lipid oxidation in mothers and offspring

Revista del Consejo Superior de Investigaciones Científicas

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Depressed excitability and ion currents linked to slow exocytotic fusion pore in chromaffin cells of the SOD1(G93A) mouse model of amyotrophic lateral sclerosis

Altered synaptic transmission with excess glutamate release has been implicated in the loss of motoneurons occurring in amyotrophic lateral sclerosis (ALS). Hyperexcitability or hypoexcitability of motoneurons from mice carrying the ALS mutation SOD1G93A (mSOD1) has also been reported. Here we have investigated the excitability, the ion currents, and the kinetics of the exocytotic fusion pore in chromaffin cells from postnatal day 90 to postnatal day 130 mSOD1 mice, when motor deficits are already established. With respect to wild-type (WT), mSOD1 chromaffin cells had a decrease in the following parameters: 95% in spontaneous action potentials, 70% in nicotinic current for acetylcholine (ACh), 35% in Na+ current, 40% in Ca2+-dependent K+ current, and 53% in voltage-dependent K+ current. Ca2+ current was increased by 37%, but the ACh-evoked elevation of cytosolic Ca2+ was unchanged. Single exocytotic spike events triggered by ACh had the following differences (mSOD1 vs. WT): 36% lower rise rate, 60% higher decay time, 51% higher half-width, 13% lower amplitude, and 61% higher quantal size. The expression of the α3-subtype of nicotinic receptors and proteins of the exocytotic machinery was unchanged in the brain and adrenal medulla of mSOD1, with respect to WT mice. A slower fusion pore opening, expansion, and closure are likely linked to the pronounced reduction in cell excitability and in the ion currents driving action potentials in mSOD1, compared with WT chromaffin cells.This work was funded by: (1) SAF-2010-21795, MINECO; (2) SAF-2010-792 18837, MINECO; (3) CABICYC, UAM/Bioibérica; (4) Fundación Teófilo 793 Hernando, Madrid, Spai