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Site Characterization Index for Continuous Power Quality Monitoring Based on Higher-order Statistics

Journal of Modern Power Systems and Clean Energy 2022年第1期10卷 222-231页

作者： Olivia Florencias-Oliveros Juan-josé González-de-la-Rosa jose-María Sierra-Fernández Agustín Agüera-Pérez Manuel-Jesús Espinosa-Gavira josé-carlos palomares-salas Department of Automation Engineering ElectronicsArchitecture and Computers NetworksResearch Group TIC168Higher Polytechnic SchoolUniversity of CádizAlgeciras 11202Spain

The high penetration of distributed generation(DG)has set up a challenge for energy management and consequently for the monitoring and assessment of power quality(PQ).Besides,there are new types of disturbances owing to the uncontrolled connections of non-linear loads.The stochastic behaviour triggers the need for new holistic indicators which also deal with big data of PQ in terms of compression and scalability so as to extract the useful information regarding different network states and the prevailing PQ disturbances for future risk assessment and energy management systems.Permanent and continuous monitoring would guarantee the report to claim for damages and to assess the risk of PQ distortions.In this context,we propose a measurement method that postulates the use of two-dimensional(2D)diagrams based on higher-order statistics(HOSs)and a previous voltage quality index that assesses the voltage supply waveform in a continous monitoring campaign.Being suitable for both PQ and reliability applications,the results conclude that the inclusion of HOS measurements in the industrial metrological reports helps characterize the deviations of the voltage supply waveform,extracting the individual customers’pattern fingerprint,and compressing the data from both time and spatial aspects.The method allows a continuous and robust performance needed in the SG framework.Consequently,the method can be used by an average consumer as a probabilistic method to assess the risk of PQ deviations in site characterization.

关键词： Continuous statistical monitoring big data data compression higher-order statistics(HOSs) power quality(PQ)

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A tumor-associated heparan sulfate-related glycosaminoglycan promotes the generation of functional regulatory T cells

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Cellular & Molecular Immunology 2023年第12期20卷 1499-1512页

作者： Leticia Martín-Cruz Marcos Viñuela Ioanna Kalograiaki Alba Angelina Paola Oquist-Phillips Irene Real-Arévalo Francisco Javier Cañada joséIgnacio Tudela Luis Moltó Jesús Moreno-Sierra joséLuis Subiza Oscar palomares Department of Biochemistry and Molecular Biology School of ChemistryComplutense University of MadridMadridSpain Inmunotek Alcaláde HenaresMadridSpain Fundación Investigación Hospital Clínico San carlos Martin Lagos s/n28040MadridSpain Centro de Investigaciones Biológicas Margarita salas CSICRamiro de Maetzu 928040MadridSpain CIBER de Enfermedades Respiratorias(CIBERES)Avda Monforte de Lemos3-528029MadridSpain Servicio de Urología Hospital Clínico San CarlosUniversidad Complutense de MadridMartín Lagos s/n28040MadridSpain

Functional Tregs play a key role in tumor development and progression,representing a major barrier to anticancer immunity.The mechanisms by which Tregs are generated in cancer and the influence of the tumor microenvironment on these processes remain incompletely understood.Herein,by using NMR,chemoenzymatic structural assays and a plethora of in vitro and in vivo functional analyses,we demonstrate that the tumoral carbohydrate A10(Ca10),a cell-surface carbohydrate derived from Ehrlich’s tumor(ET)cells,is a heparan sulfate-related proteoglycan that enhances glycolysis and promotes the development of tolerogenic features in human DCs.Ca10-stimulated human DCs generate highly suppressive Tregs by mechanisms partially dependent on metabolic reprogramming,PD-L1,IL-10,and IDO.Ca10 also reprograms the differentiation of human monocytes into DCs with tolerogenic features.In solid ET-bearing mice,we found positive correlations between Ca10 serum levels,tumor size and splenic Treg numbers.Administration of isolated Ca10 also increases the proportion of splenic Tregs in tumor-free mice.Remarkably,we provide evidence supporting the presence of a circulating human Ca10 counterpart(Ca10H)and show,for the first time,that serum levels of Ca10H are increased in patients suffering from different cancer types compared to healthy individuals.Of note,these levels are higher in prostate cancer patients with bone metastases than in prostate cancer patients without metastases.Collectively,we reveal novel molecular mechanisms by which heparan sulfate-related structures associated with tumor cells promote the generation of functional Tregs in cancer.The discovery of this novel structural-functional relationship may open new avenues of research with important clinical implications in cancer treatment.

关键词： Tumoral carbohydrate A10 Heparan sulfate-related proteoglycan Cancer immunology Dendritic cell Regulatory T cell

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