A community electrification project: combination of microgrids and household systems fed by wind, PV or micro-hydro energies according to micro-scale resource evaluation and social constraints

When electrifying isolated rural communities, usually standardized solutions have been implemented using the same technology at all the points. However these solutions are not always appropriate to the community and its population. This article aims to describe the technical design of the electrification system of the community of Alto Peru (in the region of Cajamarca, Peru), where the adequate technology was used at each area according to micro-scale resource evaluation and the socioeconomic requirements of the population. Specifically four technologies were implemented: wind microgrids in highlands, a micro-hydro power plant in the presence of a waterfall, a PV microgrid in a group of points sheltered from the wind and individual PV systems in scattered points with low wind potential. This project brought electricity to 58 households, a health center, a school, a church, two restaurants and two shops.Peer ReviewedPostprint (author’s final draft

Sobre els carrers de Castelló de 1928. Nomenclatura Oficial vs Nomenclatura Popular

Terceres Jornades de Foment de la Investigació de la FCHS (Any 1997-1998

IDENTIFICACIÓN DE LOS CRITERIOS DE POSICIONAMIENTO WEB APLICADOS A LAS WEBS UNIVERSITARIAS PÚBLICAS VALENCIANAS

Se realiza un estudio sobre el estado del arte del posicionamiento web en la actualidad, para a continuación investigar la aplicación de dichos criterios por las universidades públicas valencianas, compararlos con su visibilidad y entre las diferentes universidades, para establecer en qué fallan y qué propuestas de mejora serían las más adecuadas.Pastor López, P. (2010). IDENTIFICACIÓN DE LOS CRITERIOS DE POSICIONAMIENTO WEB APLICADOS A LAS WEBS UNIVERSITARIAS PÚBLICAS VALENCIANAS. http://hdl.handle.net/10251/14209Archivo delegad

Improving perception accuracy in bar charts with internal contrast and framing enhancements

Bar charts are among the most commonly used visualization graphs. Their main goal is to communicate quantities that can be visually compared. Since they are easy to produce and interpret, they are found in any situation where quantitative data needs to be conveyed (websites, newspapers, etc.). However, depending on the layout, the perceived values can vary substantially. For instance, previous research has shown that the positioning of bars (e.g. stacked vs separate) may influence the accuracy in bar ratio length estimation. Other works have studied the effects of embellishments on the perception of encoded quantities. However, to the best of the authors’ knowledge, the effect of perceptual elements used to reinforce the quantity depicted within the bars, such as contrast and inner lines, has not been studied in depth. In this research we present a study that analyzes the effect of several internal contrast and framing enhancements with respect to the use of basic solid bars. Our results show that the addition of minimal visual elements that are easy to implement with current technology can help users to better recognize the amounts depicted by the bar charts.Peer ReviewedPostprint (author's final draft

MAPT H1 haplotype is associated with late-onset Alzheimer's disease risk in APOE ε 4 noncarriers: Results from the dementia genetics Spanish consortium

The MAPT H1 haplotype has been linked to several disorders, but its relationship with Alzheimer's disease (AD) remains controversial. A rare variant in MAPT (p.A152T) has been linked with frontotemporal dementia (FTD) and AD. We genotyped H1/H2 and p.A152T MAPT in 11,572 subjects from Spain (4,327 AD, 563 FTD, 648 Parkinson's disease (PD), 84 progressive supranuclear palsy (PSP), and 5,950 healthy controls). Additionally, we included 101 individuals from 21 families with genetic FTD. MAPT p.A152T was borderline significantly associated with FTD [odds ratio (OR)=2.03; p=0.063], but not with AD. MAPT H1 haplotype was associated with AD risk (OR=1.12; p=0.0005). Stratification analysis showed that this association was mainly driven by APOE ε4 noncarriers (OR=1.14; p=0.0025). MAPT H1 was also associated with risk for PD (OR=1.30; p=0.0003) and PSP (OR=3.18; p=8.59 × 10-8) but not FTD. Our results suggest that the MAPT H1 haplotype increases the risk of PD, PSP, and non-APOE ε4 AD.Spanish Ministry of Science and Innovation SAF 2006-10126 (2006–2009) and SAF2010-22329-C02-01 (2011–2013) to P.P and by the UTE project FIMA to P.P. Grants from the Ministry of Science (SAF2010-15558) and CIBERNED. Agust´ın Ruiz is supported by grant PI13/02434 (Acción Estratégica en Salud. Instituto de Salud Carlos III. Ministerio de Economía y Competitividad, Spain). Grant: Consolider (CSD2010-00045).Peer Reviewe

Amplitude death and restoration in networks of oscillators with random-walk diffusion

Systems composed of reactive particles diffusing in a network display emergent dynamics. While Fick's diffusion can lead to Turing patterns, other diffusion schemes might display more complex phenomena. Here we study the death and restoration of collective oscillations in networks of oscillators coupled by random-walk diffusion, which modifies both the original unstable fixed point and the stable limit-cycle, making them topology-dependent. By means of numerical simulations we show that, in some cases, the diffusion-induced heterogeneity stabilizes the initially unstable fixed point via a Hopf bifurcation. Further increasing the coupling strength can moreover restore the oscillations. A numerical stability analysis indicates that this phenomenology corresponds to a case of amplitude death, where the inhomogeneous stabilized solution arises from the interplay of random walk diffusion and heterogeneous topology. Our results are relevant in the fields of epidemic spreading or ecological dispersion, where random walk diffusion is more prevalent

PAMTEL-RT: Web-based Multimedia Platform for Tele-Assistance of Pediatric Health Emergencies in Real Time in Training Centers

[EN] In this paper, PAMTEL-RT, a web-based platform to provide remote health professional support and guidance during the initial assistance of emergency situations is presented. In particular, this platform focuses on the pediatric population and has been specifically designed to be used by non-healthcare professionals in training centers, such as educational or sport centers. It allows pediatricians in hospitals to use Information and Communication Technologies to assist or guide, in real-time, training personnel in charge of children when any emergency situation may arise. A direct and secure real-time connection between the medical and training centers is established, allowing sharing multiple media, such as audio, video, images, documents, text and data. Since the implementation relies on standard web-based technologies, cross-network, cross-platform and cross-device support are ensured. At first, an opinion and acceptance survey was conducted to collect requirements from some potential users to consider their opinions when designing and developing the platform. In line with the obtained results, the architecture of the platform has been designed, and a prototype has been developed and preliminarily evaluated through 12 drills/simulations in 7 education and sports centers. In the evaluation, 24 training personnel were involved, who considered that its usability was excellent and that it would have applicability in their centers. Furthermore, they considered that the included functionalities in the platform are appropriate and believed that the use of PAMTEL-RT could be highly effective in the early management of extreme emergency situations, and, in some cases, in avoiding tragic consequences.This work has been partially funded by the Universitat Politecnica de Valencia (UPV) and the Foundation for the Promotion of Health and Biomedical Research of Valencia Region (FISABIO), under their R&D&I Support Program with references UPV-FISABIO-2017-002-940. Authors also want to thank educational and sport institutions involved in the drills: Gregori Maians and Esclavas del Sagrado Corazón de Jesús Schools in Gandia city; Batoi and Pare Victoria Schools in Alcoi city; and U.E. Gandia Football Club, and C.A. Safor Delikia and C.C. El Garbí athletics clubs, in Gandia cityBoronat, F.; Escrivá, P.; Salvador-Llàcer, P.; Pareja, F.; Pastor, J. (2021). PAMTEL-RT: Web-based Multimedia Platform for Tele-Assistance of Pediatric Health Emergencies in Real Time in Training Centers. Multimedia Systems. 27(2):205-227. https://doi.org/10.1007/s00530-020-00730-0205227272Tomines, A.: Pediatric telehealth: approaches by specialty and implications for general pediatric care. Adv. Pediatr. 66, 55–85 (2019). https://doi.org/10.1016/j.yapd.2019.04.005European Commission. A healthy approach. Technology for personalized, preventative healthcare. ICT Research: the policy perspective. Publications Office of the European Union, 2010. 24 pp. ISBN 978-92-79-16085–1. (2010). https://doi.org/10.2759/33350EXPH (EXpert Panel on effective ways of investing in Health), Assessing the impact of digital transformation of health services, 20 November 2018. https://ec.europa.eu/health/expert_panel/sites/expertpanel/files/docsdir/022_digitaltransformation_en.pdf (2020). Accessed May 2020Olson, C.A., McSwain, S.D., Curfman, A.L., et al.: The current pediatric telehealth landscape. Pediatrics 141(3), e20172334 (2018)Burke, B.L., Jr., Hall, R.W.: Telemedicine: pediatric applications. Pediatrics 136(1), e293-308 (2015). https://doi.org/10.1542/peds.2015-1517McConnochie, K.M., Tan, J., Wood, N.E., et al.: Acute illness utilization patterns before and after telemedicine in childcare for inner-city children: a cohort study. Telemed. J. E Health 13(4), 381–390 (2007)McConnochie, K.M., Wood, N.E., Herendeen, N.E., et al.: Telemedicine in urban and suburban childcare and elementary schools lightens family burdens. Telemed. J. E Health 16(5), 533–542 (2010). https://doi.org/10.1089/tmj.2009.0138Utidjian, L., Abramson, E.: Pediatric telehealth: opportunities and challenges. Pediatr Clin. N. Am. 63(2), 367–378 (2016). https://doi.org/10.1016/j.pcl.2015.11.006Qubty, W., Patniyot, I., Gelfand, A.: Telemedicine in a pediatric headache clinic: a prospective survey. Neurology. 90(19), e1702–e1705 (2018). https://doi.org/10.1212/WNL.0000000000005482Stavas, N., Shea, J., Keddem, S., et al.: Perceptions of caregivers and adolescents of the use of telemedicine for the child sexual abuse examination. Child Abuse Negl. 85, 47–57 (2018)Vyas, S., Murren-Boezem, J., Solo-Josephson, P.: Analysis of a pediatric telemedicine program. Prog. Telemed. J. E Health (2018). https://doi.org/10.1089/tmj.2017.0281Bala, N., Price, S.N., Horan, C.M., et al.: Use of telehealth to enhance care in a family-centered childhood obesity intervention. Clin. Pediatr. 58(7), 789–797 (2019)mHealth Economics 2017. Current Status and Future Trends in Mobile Health: Research 2 Guidance. http://www.uzelf.org/wp-content/uploads/2017/12/R2G-mHealth-Developer-Economics-2017-Status-And-Trends.pdf (2020). Accessed May 2020Cisotto, G., Casarin, E., Tomasin, S.: Requirements and enablers of advanced healthcare services over future cellular systems. IEEE Commun. Mag. 58(3), 76–81 (2020). https://doi.org/10.1109/MCOM.001.1900349Morosi, S., Jayousi, S., Mucchi, L., et al.: Medical Tele-Monitoring and Tele-Assistance for Diabetics Patients by Means of 5G Cellular Networks, in Proceedings of BodyNets 2019. In: Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 297. Springer, Cham (2019)Montagud, M., Boronat, F., Belda, J., et al.: Use of Web Components to Develop Interactive, Customizable and Multi-Device Video Consumption Platforms, Applications and Usability of Interactive TV, pp. 26–43. Springer, Berlin (2016)Arntzen, I., Bjorch, N., Daoust, F.: Media Synchronization on the Web. In: Montagud, M., Cesar, P., Boronat, F., Jansen, J. (eds.) MediaSync: Handbook on Multimedia Synchronization. Springer, Cham (2018)Pauwels, D., van der Hooft, J., Petrangeli, S., et al.: A Web-based framework for fast synchronization of live video players, IFIP/IEEE Symposium on Integrated Network and Service Management, Lisbon, 2017, pp. 524–530 (2017)Rainer, B., Petscharnig, S., Timmerer, C.: Merge and forward: a self-organized inter-destination media synchronization scheme for adaptive media streaming over HTTP. In: Montagud, M., Cesar, P., Boronat, F., Jansen, J. (eds.) MediaSync: Handbook on Multimedia Synchronization. Springer, Cham (2018)Montagud, M., Boronat, F., Stokking, H., et al.: Inter-destination multimedia synchronization: schemes, use cases and standardization. Multimedia Syst. J. 18(6), 459–482 (2012). https://doi.org/10.1007/s00530-012-0278-9Montagud, M., Boronat, F., Stokking, H., et al.: Design development and assessment of control schemes for IDMS in a standardized RTCP-based solution. COMNET 70(9), 240–259 (2014). https://doi.org/10.1016/j.comnet.2014.06.004Dynamic Adaptive Streaming Over HTTP (DASH): Part 1: media presentation description and segment formats, ISO/IEC Standard 23009-1: 2012 (2012)Gómez, D., Boronat, F., Montagud, M., et al.: End-to-end DASH platform including a network-based and client-based adaptive quality switching module. In: Proc. Int. Conf. Multimedia Syst., Klagenfurt, Austria, Art. no. 38 (2016)Melvin, H., Shannon, J., Stanton, K.: Time, frequency and phase synchronization for multimedia—basics, issues, developments and opportunities. In: Montagud, M., Cesar, P., Boronat, F., Jansen, J. (eds.) MediaSync: Handbook on Multimedia Synchronization. Springer, Cham (2018)Boronat, F., Lloret, J., García, M.: Multimedia group and inter-stream synchronization techniques: a comparative study. Inf. Syst. 34(1), 108–131 (2009). https://doi.org/10.1016/j.is.2008.05.001Montagud, M., Boronat, F., Pastor, J., et al.: Web-based platform for a customizable and synchronized presentation of subtitles in single- and multi-screen scenarios. Multimed Tools Appl (2020). https://doi.org/10.1007/s11042-020-08955-xSu, Y., Yang, Y., Lu, M., et al.: Smooth control of adaptive media playout for video streaming. IEEE TMM 1(7), 1331–1339 (2009)Rainer, B., Timmerer, C.: Self-Organized inter-destination multimedia synchronization for adaptive media streaming. In: Proceedings of the 22nd ACM international conference on Multimedia (MM '14). ACM, New York, NY, USA, pp. 327–336 (2014)Montagud, M., Boronat, F., Roig, B., et al.: How to perform AMP? Cubic adjustments for improving the QoE. Comput. Commun. 103, 61–73 (2017). https://doi.org/10.1016/j.comcom.2017.01.017Hossfeld, T., Seufert, M., Hirth, M., et al.: Quantification of YouTube QoE via crowdsourcing. 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What causes a heavy precipitation period to become extreme? The exceptional October of 2018 in the Western Mediterranean

The Mediterranean region is particularly exposed to heavy precipitation and flash flooding. Every autumn the region is affected by these weather-related hazards, frequently with immense costly and deadly consequences. What makes an already potentially damaging period in terms of heavy precipitation, even more intense? This is the underlying question in this study, in which the atmosphere and the ocean conditions in October 2018 are examined to identify anomalies favoring this intensification. Furthermore, the model representativity of the over-averaged precipitation period and underlying anomalies is analyzed across scales using climatological, seasonal, and event-based COSMO high-resolution model simulations. Our investigation shows that October-2018, in the context of the climatological series from 1982 to 2018, could be marked as an unprecedented period because of the presence of intense and numerous low-pressure systems. Additionally, atmospheric moisture values placed this time above the climatological average, mainly for the high percentiles of the TCWV hourly anomalies. Specific humidity showed similar behaviour as TCWV except for pressure levels lower than 700 hPa, probably in relation to the evolution of the former Hurricane Leslie. The atmosphere-ocean interaction presented combined strong sea surface temperature (SST) and evaporation anomalies. April to October SST clearly exceeds climatological values while October-2018 presents both strong monthly anomaly and intense evaporation peaks preceding the most intense precipitation events. These large-scale features’ anomalies were in general well captured by the high-resolution regional climate model simulations at climatic and seasonal scales leading to an accurate representation of accumulated precipitation for the October period. However, the numerical weather prediction simulations on an event scale revealed low predictability, in agreement with former investigations, due to differences at the location and intensity of the cut-off lows and particularly at the atmospheric moisture field. The conclusions of this study show that it is not the most extreme period in terms of single anomalies which lead to extreme wet seasons, but the synergy of atmospheric and oceanic anomaly conditions with a constant interplay which made Autumn/October 2018 an extreme season/month

Validity and sensitivity of instrumented postural and gait assessment using low-cost devices in Parkinson's disease

[EN] Background Accurate assessment of balance and gait is necessary to monitor the clinical progress of Parkinson's disease (PD). Conventional clinical scales can be biased and have limited accuracy. Novel interactive devices are potentially useful to detect subtle posture or gait-related impairments. Methods Posturographic and single and dual-task gait assessments were performed to 54 individuals with PD and 43 healthy controls with the Wii Balance Board and the Kinect v2 and the, respectively. Individuals with PD were also assessed with the Tinetti Performance Oriented Mobility Assessment, the Functional Gait Assessment and the 10-m Walking Test. The influence of demographic and clinical variables on the performance in the instrumented posturographic and gait tests, the sensitivity of these tests to the clinical condition and phenotypes, and their convergent validity with clinical scales were investigated. Results Individuals with PD in H&Y I and I.5 stages showed similar performance to controls. The greatest differences in posture and gait were found between subjects in H&Y II.5 and H&Y I-I.5 stage, as well as controls. Dual-tasking enhanced the differences among all groups in gait parameters. Akinetic/rigid phenotype showed worse postural control and gait than other phenotypes. High significant correlations were found between the limits of stability and most of gait parameters with the clinical scales. Conclusions Low-cost devices showed potential to objectively quantify posture and gait in established PD (H&Y >= II). Dual-tasking gait evaluation was more sensitive to detect differences among PD stages and compared to controls than free gait. Gait and posture were more impaired in akinetic/rigid PD.This study has been funded by project VALORA, Grant 201701-10 of the Fundacio la Marato de la TV3 (Barcelona, Spain) and the European Union through the Operational Program of the European Regional Development Fund (ERDF) of the Valencian Community 2014-2020 (IDIFEDER/2018/029) to RL, and Alter Laboratories SA to PP.Álvarez, I.; Latorre, J.; Aguilar, M.; Pastor, P.; Llorens Rodríguez, R. (2020). Validity and sensitivity of instrumented postural and gait assessment using low-cost devices in Parkinson's disease. Journal of NeuroEngineering and Rehabilitation. 17(1):1-10. https://doi.org/10.1186/s12984-020-00770-7S110171Nussbaum RL, Ellis CE. Alzheimer’s Disease and Parkinson’s Disease. N Engl J Med. 2003;13:56–64.Hass CJ, Malczak P, Nocera J, Stegemöller EL, Shukala A, Malaty I, et al. Quantitative normative Gait data in a large cohort of ambulatory persons with parkinson’s disease. 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J Neural Transm. 2013;120:1665–72.Bloem BR, Marinus J, Almeida Q, Dibble L, Nieuwboer A, Post B, et al. Measurement instruments to assess posture, gait, and balance in Parkinson’s disease: Critique and recommendations. Mov Disord. 2016;31:1342–55.Delval A, Snijders AH, Weerdesteyn V, Duysens JE, Defebvre L, Giladi N, et al. Objective detection of subtle freezing of gait episodes in Parkinson’s disease. Mov Disord. 2010;25:1684–93. https://doi.org/10.1002/mds.23159.Verghese J, Holtzer R, Lipton RB, Wang C. Quantitative gait markers and incident fall risk in older adults. J Gerontol Ser A Biol Sci Med Sci. 2009;64A:896–901.Schlachetzki JCM, Barth J, Marxreiter F, Gossler J, Kohl Z, Reinfelder S, et al. Wearable sensors objectively measure gait parameters in Parkinson’s disease. PLoS ONE. 2017;12:1–18.Godinho C, Domingos J, Cunha G, Santos AT, Fernandes RM, Abreu D, et al. A systematic review of the characteristics and validity of monitoring technologies to assess Parkinson’s disease. J Neuroeng Rehabil. 2016;13:1–10. https://doi.org/10.1186/s12984-016-0136-7.Micó-Amigo ME, Kingma I, Faber GS, Kunikoshi A, van Uem JMT, van Lummel RC, et al. Is the assessment of 5 meters of gait with a single body-fixed-sensor enough to recognize idiopathic Parkinson’s disease-associated gait? Ann Biomed Eng. 2017;45:1266–78.Rovini E, Maremmani C, Cavallo F. How wearable sensors can support parkinson’s disease diagnosis and treatment: a systematic review. Front Neurosci. 2017;9:12.Chen S, Lach J, Lo B, Yang GZ. Toward Pervasive Gait Analysis With Wearable Sensors: A Systematic Review. IEEE J Biomed Health Inform. 2016;9:1521–37.Díaz S, Stephenson JB, Labrador MA. Use of wearable sensor technology in gait, balance, and range of motion analysis. Appl Sci. 2020;10(1):234.Park DS, Lee G. Validity and reliability of balance assessment software using the Nintendo Wii balance board: usability and validation. J Neuroeng Rehabil. 2014;11:99.Holmes JD, Jenkins ME, Johnson AM, Hunt MA, Clark RA. Validity of the Nintendo Wii balance board for the assessment of standing balance in Parkinson’s disease. Clin Rehabil. 2013;27:361–6.Llorens R, Latorre J, Noé E, Keshner EA. Posturography using the Wii Balance BoardTM. A feasibility study with healthy adults and adults post-stroke. Gait Posture. 2016;43:228–32.Bower KJ, McGinley JL, Miller KJ, Clark RA. Instrumented static and dynamic balance assessment after stroke using Wii Balance Boards: Reliability and association with clinical tests. PLoS ONE. 2014;9:32321.Eltoukhy M, Kuenze C, Andersen MS, Oh J, Signorile J. Prediction of ground reaction forces for Parkinson’s disease patients using a kinect-driven musculoskeletal gait analysis model. Med Eng Phys. 2017;50:75–82.Eltoukhy M, Kuenze C, Oh J, Jacopetti M, Wooten S, Signorile J. Microsoft Kinect can distinguish differences in over-ground gait between older persons with and without Parkinson’s disease. Med Eng Phys. 2017;44:1–7.Dolatabadi E, Taati B, Mihailidis A. Concurrent validity of the Microsoft Kinect for Windows v2 for measuring spatiotemporal gait parameters. Med Eng Phys. 2016;38:952–8.Mentiplay BF, Perraton LG, Bower KJ, Pua YH, McGaw R, Heywood S, et al. Gait assessment using the Microsoft Xbox One Kinect: Concurrent validity and inter-day reliability of spatiotemporal and kinematic variables. J Biomech. 2015;48:2166–70.Cao Y, Li BZ, Li QN, Xie JD, Cao BZ, Yu SY. Kinect-based gait analyses of patients with Parkinson’s disease, patients with stroke with hemiplegia, and healthy adults. CNS Neurosci Ther. 2017;9:447–9.Galna B, Barry G, Jackson D, Mhiripiri D, Olivier P, Rochester L. Accuracy of the Microsoft Kinect sensor for measuring movement in people with Parkinson’s disease. Gait Posture. 2014;39:1062–8.Hughes AJ, Daniel SE, Kilford L, Lees AJ. 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Utilidad de las secuencias potenciadas en susceptibilidad paramagnética (SWI) para diferenciar crisis somestésicas de accidentes isquémicos transitorios en un paciente con angiopatía amiloide cerebral

Background. Cerebral amyloid angiopathy (CAA) is characterized by the deposit of β-amyloid on the walls of small and medium-sized arteries of the cerebral cortex and leptomeninges causing cerebral bleeding. Clinical presentations may include transient neurological events for which differential diagnosis can be difficult. Case report. We report a subject with a medical history of recent stroke who presented somesthetic seizures mimicking transient ischemic attacks owing to CAA microbleeding. Antiplatelet treatment was reduced and after lamotrigine was commenced the episodes disappeared. Susceptibility-weighted magnetic resonance imaging was very helpful for diagnosis (SWI-MRI). Conclusions. CAA microbleeding can be manifested in the form of seizures mimicking focal transient sensitive neurological deficits that can be erroneously attributed to cerebral ischemia. The present case report suggests that, despite the presence of a past medical history of strokes, neurologists should consider CAA microbleeding as a possible cause of pseudo-transient ischemic attacks. High-resolution neuroimaging including SWIMRI imaging can be helpful in identifying cortical microbleedings. In this way, the start or increase of antiplatelet treatment can be avoided, and the risk of potentially fatal complications minimize