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SAGeLogE: A Decision Support System for Students’ Accommodation Management

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Journal of Computer and Communications 2024年第3期12卷 107-145页

作者： rôlin gabriel rasoanaivo Pascale Zaraté Institut de recherche en Informatique de Toulouse (IrIT) ADRIA Toulouse France Université Toulouse Capitole Toulouse France Faculté des sciences et technologies Université de Toamasina Toamasina Madagascar

SAGeLogE is the acronym of “Système d’Aide à la Gestion de Logements étudiants” which means student accommodation management support system. It’s a multi-criteria decision support system designed to manage accommodation allocation for university students. Within SAGeLogE we developed the “Minimum of ranks” (MIrA) aggregation method. MIrA method involves the application of multi-criteria decision-making methods (MCDM) to initially obtain different ranking. Thus, we chose the Weighted Sum Method (WSM), Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and Combined Compromise Solution (CoCoSo) methods to be implemented in SAGeLogE. To prioritize the weights of criteria, the Anality Hierarchy Process (AHP) method was used. The interest of using the MIrA method was to obtain a compromised ranking coming from these three multi-criteria decision-making methods (WSM, TOPSIS, CoCoSo). So, we know that the accommodation to be allocated to students is always lower than the number of accommodation requests received by the organization. Thus, SAGeLogE proposed a technique that makes it easier to select students ranked by the multi-criteria decision-making and MIrA methods according to a method of calculation of quota of available accommodations within university residences. Finally, university accommodation managers had a wide choice of student ranking according to the methods implemented in SAGeLogE. The SAGeLogE experiment was carried out on the site of Toamasina University in Madagascar for an academic year with 2026 student accommodation applications received. The experimentation showed the ability of SAGeLogE to achieve the result.

关键词： MIrA Method MCDM Accommodation Quota SAGeLogE

Modifying the progression of Parkinson's disease through movement interventions:multimodal quantification of underlying mechanisms

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Neural regeneration research 2024年第8期19卷 1651-1652页

作者： Manuel Bange Damian Marc Herz Dumitru Ciolac gabriel Gonzalez-Escamilla Sergiu Groppa Section of Movement Disorders and Neurostimulation Department of NeurologyFocus Program Translational Neuroscience(FTN)University Medical Center of the Johannes Gutenberg-University MainzMainzGermany

Introduction:Parkinson’s disease(PD)is the most common neurodegenerative movement disorder.The pathological hallmark is the progressive loss of dopaminergic neurons of the substantia nigra pars compacta,which is accompanied by widespread alterations in the structu re and function of distributed brain networks.Togethe r,these processes cause a variety of motor symptoms such as bradykinesia,rigidity,tremor,gait disorders,or difficulties in fine motor control(Bange et al.,2022).

关键词： alterations movement

Exploring fs-laser irradiation damage subthreshold behavior of dielectric mirrors via electrical measurements

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High Power Laser Science and Engineering 2024年第2期12卷 24-32页

作者： Petrisor gabriel Bleotu radu Udrea Alice Dumitru Olivier Uteza Maria-Diana Mihai Dan Gh Matei Daniel Ursescu Stefan Irimiciuc Valentin Craciun Extreme Light Infrastructure-Nuclear Physics(ELI-NP) Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering(IFIN-HH)MagureleRomania Doctoral School of Physics University of BucharestMagureleRomania LULI-CNrS CEAUniversite SorbonneEcole PolytechniqueInstitut Polytechnique de ParisPalaiseau CEDEXFrance Apel Laser IlfovRomania Aix-Marseille University CNRSLP3 UMR 7341MarseilleFrance Horia Hulubei National Institute for r&D in Physics and Nuclear Engineering(IFIN-HH) MagureleRomania University Politehnica of Bucharest BucharestRomania National Institute for Lasers Plasma and radiation Physics MagureleRomania

With ultrafast laser systems reaching presently 10 PW peak power or operating at high repetition rates,research towards ensuring the long-term,trouble-free performance of all laser-exposed optical components is critical.Our work is focused on providing insight into the optical material behavior at fluences below the standardized laser-induced damage threshold(LIDT)value by implementing a simultaneous dual analysis of surface emitted particles using a Langmuir probe(LP)and the target current(TC).HfO_(2) and ZrO_(2) thin films deposited on fused silica substrates by pulsed laser deposition at various O_(2) pressures for defect and stoichiometry control were irradiated by Gaussian,ultrashort laser pulses(800 nm,10 Hz,70 fs)in a wide range of fluences.Both TC and LP collected signals were in good agreement with the existing theoretical description of laser–matter interaction at an ultrashort time scale.Our approach for an in situ LIDT monitoring system provides measurable signals for below-threshold irradiation conditions that indicate the endurance limit of the optical surfaces in the single-shot energy scanning mode.The LIDT value extracted from the LP-TC system is in line with the multipulse statistical analysis done with ISO 21254-2:2011(E).The implementation of the LP and TC as on-shot diagnostic tools for optical components will have a significant impact on the reliability of next-generation ultrafast and high-power laser systems.

关键词： HfO_(2) in situ detection Langmuir probe laser-induced damage threshold target current ZrO_(2)

Toxicity of a seafood toxin， domoic acid， in the retina via modulation of the NrF2 and NF-κB pathways

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Food Science and Human Wellness 2024年

作者： gabriel Mbuta Tchivelekete Yanqun Cao Mohammad Almarhoun Xinzhi Zhou Agostinho Francisco Cachapa Sebasti?o Tumitangua James reilly Patricia E.Martin Xinhua Shu Department of Biological and Biomedical Sciences Glasgow Caledonian University Department of Marine Biology Faculty of Natural Science University of Namibe Puai Medical School Shaoyang University Department of Vision Science Glasgow Caledonian University

Domoic acid (DA)， a biotoxin， is produced by several species of marine dinoflagellate and diatom during harmful algal bloom events. DA is a neurotoxin， in humans and non-human primates， oral exposure to DA results in gastrointestinal effects， while DA at higher doses leads to neurological symptoms， seizures and memory deficiency. Exposure of humans to DA occurs mainly through consumption of contaminated seafoods containing an accumulation of the toxin. Previously， it was unclear if DA can have toxic effects on the retina. We assessed the toxicity of DA in human retinal cells (ArPE-19) and in zebrafish embryos. DA significantly lowered ArPE-19 cell viability dose-dependently， and decreased anti-oxidative capacity， increased inflammation， and promoted cell death， possibly through modulating the NrF2 and NF-κB signalling pathways. Zebrafish embryos exposed to DA for four days from one day post fertilization (dpf) had an increase in mortality and a decrease in both hatching and heartbeat rate and exhibited morphological abnormalities. DA treatment also significantly downregulated expression of antioxidant genes and upregulated expression of inflammation mediators， as well as causing photoreceptor death in zebrafish embryos. The results demonstrate that consuming seafood containing DA will have potential toxic effects in human retinas.

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Amyloid-beta peptide and tau protein crosstalk in Alzheimer’s disease

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Neural regeneration research 2022年第8期17卷 1666-1674页

作者： Alejandro r.roda gabriel Serra-Mir Laia Montoliu-Gaya Lidia Tiessler Sandra Villegas Protein Design and Immunotherapy Group Departament de Bioquímica i Biologia MolecularFacultat de BiociènciesUniversitat Autònoma de BarcelonaBellaterraBarcelonaSpain Department of Psychiatry and Neurochemistry Institute of Neuroscience and PhysiologyThe Sahlgrenska AcademyUniversity of GothenburgSweden

Alzheimer’s disease is a neurodegenerative disease that accounts for most of the 50-million dementia cases worldwide in 2018.A large amount of evidence supports the amyloid cascade hypothesis,which states that amyloid-beta accumulation triggers tau hyperphosphorylation and aggregation in form of neurofibrillary tangles,and these aggregates lead to inflammation,synaptic impairment,neuronal loss,and thus to cognitive decline and behavioral abnormalities.The poor correlation found between cognitive decline and amyloid plaques,have led the scientific community to question whether amyloid-beta accumulation is actually triggering neurodegeneration in Alzheimer’s disease.The occurrence of tau neurofibrillary tangles better correlates to neuronal loss and clinical symptoms and,although amyloid-beta may initiate the cascade of events,tau impairment is likely the effector molecule of neurodegeneration.recently,it has been shown that amyloid-beta and tau cooperatively work to impair transcription of genes involved in synaptic function and,more importantly,that downregulation of tau partially reverses transcriptional perturbations.Despite mounting evidence points to an interplay between amyloid-beta and tau,some factors could independently affect both pathologies.Thus,the dual pathway hypothesis,which states that there are common upstream triggers causing both amyloid-beta and tau abnormalities has been proposed.Among others,the immune system seems to be strongly involved in amyloid-beta and tau pathologies.Other factors,as the apolipoprotein Eε4 isoform has been suggested to act as a link between amyloid-beta and tau hyperphosphorylation.Interestingly,amyloid-beta-immunotherapy reduces not only amyloid-beta but also tau levels in animal models and in clinical trials.Likewise,it has been shown that tau-immunotherapy also reduces amyloid-beta levels.Thus,even though amyloid-beta immunotherapy is more advanced than tau-immunotherapy,combined amyloid-beta and tau-directed therapies at early stages of the disease have recently b

关键词： aggregation Alzheimer amyloid-beta dementia immunotherapy inflammation neurodegeneration tau

Mapping uncovered a multi-phase arc-back-arc system in the southern Beishan during the Permian

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National Science review 2023年第2期10卷 14-16页

作者： Tong Hong gabriel S.Santos Cees r.van Staal Wenhua Ji Shoufa Lin Department of Earth and Environmental Sciences University of Waterloo Geological Survey of Canada China Geological Survey Xi'an Centre School of resources and Environmental Engineering Hefei University of Technology

The Central Asian orogenic belt(CAOB),surrounded by the Baltica and Siberia cratons to the north,and the Tarim and North China cratons to the south,records successive evolution cycles of subduction and accretion/collision from Neoproterozoic to the Paleozoic that consumed and eventually closed the Paleo-Asian Ocean[1].Tectonic models of the terminal orogenesis are contentious,with discussions ranging from the time and location of final closure of the Paleo-Asian Ocean to the regional context and setting of its various tectonic constituents.

关键词： NW CHINA ACCrETION

residual force enhancement in human skeletal muscles:A systematic review and meta-analysis

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Journal of Sport and Health Science 2022年第1期11卷 94-103页

作者： Daiani de Campos Lucas B.r.Orssatto gabriel S.Trajano Walter Herzog Heiliane de Brito Fontana Biomechanics Laboratory Federal University of Santa CatarinaFlorianopolis 88040-001Brazil Faculty of Health School of Exercise and Nutrition SciencesQueensland University of TechnologyBrisbane QLD 4030Australia Human Performance Laboratory Faculty of KinesiologyUniversity of CalgaryAB T2N 1N4Canada School of Biological Sciences Federal University of Santa CatarinaFlorianopolis 88040-900Brazil

Objective:We reviewed and appraised the existing evidence of in vivo manifestations of residual force enhancement in human skeletal muscles and assessed,through a meta-analysis,the effect of an immediate history of eccentric contraction on the subsequent torque capacity of voluntary and electrically evoked muscle contractions.Methods:Our search was conducted from database inception to May 2020.Descriptive information was extracted from,and quality was assessed for,45 studies.Meta-analyses and metaregressions were used to analyze residual torque enhancement and its dependence on the angular amplitude of the preceding eccentric contraction.results:Procedures varied across studies with regards to muscle group tested,angular stretch amplitude,randomization of contractions,time window analyzed,and verbal command.Torque capacity in isometric(constant muscle tendon unit length and joint angle)contractions preceded by an eccentric contraction was typically greater compared to purely isometric contractions,and this effect was greater for electrically evoked muscle contractions than voluntary contractions.residual torque enhancement differed across muscle groups for the voluntary contractions,with a significant enhancement in torque observed for the adductor pollicis,ankle dorsiflexors,ankle plantar flexors,and knee extensors,but not for the elbow and knee flexors.Meta-regressions revealed that the angular amplitude of the eccentric contraction(normalized to the respective joints full range of motion)was not associated with the residual torque enhancement observed.Conclusion:There is evidence of residual torque enhancement for most,but not all,muscle groups,and residual torque enhancement is greater for electrically evoked than for voluntary contractions.Contrary to our hypothesis,and contrary to generally accepted findings on isolated muscle preparations,residual torque enhancement in voluntary and electrically evoked contractions does not seem to depend on the angular amplitude of the preceding eccentric contraction.

关键词： Cross-bridge theory Eccentric contraction Force-length relationship Isometric force Muscle properties

A System Identification-based Modeling Framework of Bidirectional DC-DC Converters for Power Grids

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Journal of Modern Power Systems and Clean Energy 2022年第3期10卷 788-799页

作者： gabriel E.Mejia-ruiz Mario r.A.Paternina Juan r.rodriguez r. Juan M.ramirez Alejandro Zamora-Mendez Guillermo Bolivar-O. Department of Electrical Engineering National Autonomous University of Mexico(UNAM)Mexico CityMexico Department of Electrical Engineering Center for Research and Advanced Studies(CINVESTAV)GuadalajaraMexico Electrical Engineering Faculty Michoacan University of Saint Nicholas of Hidalgo(UMSNH)MoreliaMexico Engineering Faculty Corporacion Universitaria Minuto de Dios-UNIMINUTOBelloColombia

This paper proposes a system identification framework based on eigensystem realization to accurately model power electronic converters.The proposed framework affords an energy-based optimal reduction method to precisely identify the dynamics of power electronic converters from simulated or actual raw data measured at the converter’s ports.This method does not require any prior knowledge of the topology or internal parameters of the converter to derive the system modal information.The accuracy and feasibility of the proposed method are exhaustively evaluated via simulations and practical tests on a software-simulated and hardware-implemented dual active bridge(DAB)converter under steady-state and transient conditions.After various comparisons with the Fourier series-based generalized average model,switching model,and experimental measurements,the proposed method attains a root mean square error(rMSE)of less than 1%with respect to the actual raw data.Moreover,the computational effort is reduced to 1/8.6 of the Fourier series-based model.

关键词： Dual active bridge eigensystem realization algorithm generalized average model power electronic converter identification

Prototyping low-cost automatic weather stations for natural disaster monitoring

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数字通信与网络:英文版 2023年第4期9卷 941-956页

作者： gabriel F.L.r.Bernardes rogerio Ishibashi Andre A.S.Ivo Valerio rosset Bruno Y.L.Kimura Institute of Science and Technology Federal University of Sao Paulo(ICT/UNIFESP)Sao Jose dos CamposSPBrazil Brazilian National Center for Monitoring and Early Warnings of Natural Disasters(Cemaden) Sao Jose dos CamposSPBrazil

Weather events put human lives at risk mostly when people might occupy areas susceptible to natural disasters.Deploying Professional Weather Stations(PWS)in vulnerable areas is key for monitoring weather with reliable measurements.However,such professional instrumentation is notably expensive while remote sensing from a number of stations is paramount.This imposes challenges on the large-scale weather station deployment for broad monitoring from large observation networks such as in Cemaden—The Brazilian National Center for Monitoring and Early Warning of Natural Disasters.In this context,in this paper,we propose a Low-Cost Automatic Weather Station(LCAWS)system developed from Commercial Off-The-Shelf(COTS)and open-source Internet of Things(IoT)technologies,which provides measurements as reliable as a reference PWS for natural disaster monitoring.When being automatic,LCAWS is a stand-alone photovoltaic system connected wirelessly to the Internet in order to provide real-time reliable end-to-end weather measurements.To achieve data reliability,we propose an intelligent sensor calibration method to correct measures.From a 30-day uninterrupted observation with sampling in minute resolution,we show that the calibrated LCAWS sensors have no statistically significant differences from the PWS measurements.As such,LCAWS has opened opportunities for reducing maintenance costs in Cemaden's observational network.

关键词： Wireless automatic weather station Low-cost weather instrumentation Natural disaster monitoring Intelligent sensor calibration Internet of things