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CHILEAN Conference on Electrical, Electronics engineering, Information and Communication Technologies (CHILECON)

作者： Jhon Henríquez Eduardo Espinosa Matías Veillon Hugo Garcés Pedro Melín Marcelo Reyes Carlos Baier Galina Mirzaeva Universidad Católica de la Santísima Concepción Concepción Chile Universidad del Bío-Bío Concepción Chile PhD Student Doctoral Program in Engineering at the MacroFacultad de Ingeniería UFRO-UBB-UTAL Chile Universidad de Talca Curicó Chile School of Electrical Engineering and Computing The University of Newcastle Callaghan NSW Australia

ISBN: (纸本)9781665408745

In this work, a comparative analysis of the performance and efficiency of the FCS-MPC and Modulation FBQ applied to an AFE active front rectifier is carried out. The above compares quality indicators of form in the input current of an AFE, THD, and WTHD rectifier. For efficiency, the conduction and commutation losses in the switches will be estimated to obtain a selection criterion between these two control methods, which will be based on the efficiency of the converter and the performance of the input current loop. The semiconductors losses are calculated by linear mathematical approximations, which depend on the operation point of the AFE rectifier and the switch parameters, which are obtained from the datasheet provided by the switch manufacturer, which for this work, IGBT IKW25T120 was selected. Finally, for the performance analysis, satisfactory simulation results were obtained.

关键词： Insulated gate bipolar transistors Simulation Conferences Rectifiers Modulation Control systems Performance analysis

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Microsecond electric pulses effects in spinal cord injuries: results from RISEUP project

Microsecond electric pulses effects in spinal cord injuries:...

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International Conference on Electromagnetics in Advanced Applications (ICEAA)

作者： Giorgia Innamorati Camilla Codazzi Giulia Bergafora Paola Giardullo Caterina Merla Francesca Camera Marina Sanchez Petidier Leslie Vallet Micol Colella Laura Caramazza Noemi Dolciotti Sara Fontana Maria Pedraza Paolo Marracino Claudia Consales Department of Biology PhD Program in Cellular and Molecular Biology University of Rome “Tor Vergata” Rome Italy Division of Health Protection Technologies ENEA-Italian National Agency for New Technologies Energy and Sustainable Economic Development Rome Italy Institut Gustave Roussy CNRS Metabolic and Systemic aspects of the oncogenesis (METSY) Université Paris-Saclay Villejuif France Department of Information Engineering Electronics and Telecommunications Sapienza BioEMLab Group DIET University of Rome Italy Neuronal and Tissue Regeneration Laboratory Centro de Investigación Príncipe Felipe Valencia Spain RISE TECHNOLOGY SRL Ostia (RM) Italy

Spinal Cord Injury (SCI), a major cause of paralysis, currently has no effective therapies. Every year almost 500.000 people are diagnosed with SCI worldwide. he difficulty on the neuronal restoration after SCI is based on the complex cascade of events that inexorably cause a degenerative chronic stage mainly favored by the non-permissive environment and limited capacity for axonal regrowth. RISEUP, an Europen project, proposes to attain neuronal functional regeneration after SCI by an unprecedented and unique bio-hybrid-compatible electro-activated and wireless rechargeable implantable technology. RISEUP introduces high voltage microsecond electric pulses stimulations and low amplitude direct currents on a combination of stem cells, induced neural stem cells (iNSCs) and multipotent stromal cells (MSCs), whose transplantation is facilitated by an innovative scaffold biomaterial (Fig.1).

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Statistical Power Analysis for Designing Bulk, Single-Cell, and Spatial Transcriptomics Experiments: Review, Tutorial, and Perspectives

arXiv

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arXiv 2023年

作者： Jeon, Hyeongseon Xie, Juan Jeon, Yeseul Jung, Kyeong Joo Gupta, Arkobrato Chang, Won Chung, Dongjun Department of Biomedical Informatics The Ohio State University ColumbusOH United States Pelotonia Institute for Immuno-Oncology The James Comprehensive Cancer Center The Ohio State University ColumbusOH43210 United States The Interdisciplinary PhD program in Biostatistics The Ohio State University ColumbusOH United States Department of Statistics and Data Science Yonsei University Seoul Korea Republic of Department of Applied Statistics Yonsei University Seoul Korea Republic of Department of Computer Science and Engineering The Ohio State University ColumbusOH United States Division of Statistics and Data Science University of Cincinnati CincinnatiOH United States

Gene expression profiling technologies have been used in various applications such as cancer biology. The development of gene expression profiling has expanded the scope of target discovery in transcriptomic studies, and each technology produces data with distinct characteristics. In order to guarantee biologically meaningful findings using transcriptomic experiments, it is important to consider various experimental factors in a systematic way through statistical power analysis. In this paper, we review and discuss the power analysis for three types of gene expression profiling technologies from a practical standpoint, including bulk RNA-seq, single-cell RNA-seq, and high-throughput spatial transcriptomics. Specifically, we describe the existing power analysis tools for each research objective for each of the bulk RNA-seq and scRNA-seq experiments, along with recommendations. On the other hand, since there are no power analysis tools for high-throughput spatial transcriptomics at this point, we instead investigate the factors that can influence power analysis. © 2023, CC BY-NC-ND.

关键词： RNA

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Constructing conjugated microporous polymers containing triphenylamine moieties for high-performance capacitive energy storage

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Polymer 2023年 264卷

作者： Samy, Maha Mohamed Gamal Mohamed, Mohamed Sharma, Santosh U. Chaganti, Swetha V. Hassan Mansoure, Tharwat Lee, Jyh-Tsung Chen, Tao Kuo, Shiao-Wei Department of Materials and Optoelectronic Science College of Semiconductor and Advanced Technology Research Center for Functional Polymers and Supramolecular Materials National Sun Yat-Sen University Kaohsiung804 Taiwan Chemistry Department Faculty of Science Assiut University Assiut71515 Egypt International PhD Program for Science National Sun Yat-sen University Kaohsiung80424 Taiwan Department of Chemistry National Sun Yat-Sen University Kaohsiung80424 Taiwan Ningbo Institute of Material Technology and Engineering Chinese Academy of Science Ningbo315201 China Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung807 Taiwan

In this research we developed two triphenylamine (TPA)-linked conjugated microporous polymers (CMPs), TPA-TAB and TPA-TBN, through Suzuki couplings of tris(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)amine (TPA-BO) with the aryl bromides tetrakis(4-bromophenyl)benzidine (TAB-Br4) and 2,7,10,15-tetrabromotetrabenzonaphthalene (TBN-Br4), respectively. These CMPs, which have substantial surface surfaces and outstanding thermal stability, could be employed as electrode materials in supercapacitor (SC) devices. In a three-electrode SC, the TPA-TAB CMP exhibited ultrahigh specific capacitance (684 F g−1 at 0.5 A g−1) and long-term stability, with a capacitance retention of 99.5% after 5000 cycles (at 10 A g−1). Moreover, a two-electrode symmetric SC incorporating TPA-TAB CMP presented a capacitance of 117 F g−1 and a high retention of 98% when subjected to 5000 cycles at 10 A g−1. This exceptional performance resulted from was achieved through the use of redox-active TPA units and a large BET surface area (490 m2 g−1). Accordingly, such TPA-CMPs appear to have promise for use in charge and energy storage applications. © 2022 Elsevier Ltd

关键词： Supercapacitor

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Dish-trend: Intervention modeling simulator that accounts for trend influences

arXiv

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arXiv 2021年

作者： Andjelkovic, Stefan Miskov-Zivanov, Natasa Computational and Systems Biology Joint Carnegie Mellon University University of Pittsburgh Computational Biology PhD Program University of Pittsburgh 4420 Bayard St PittsburghPA15213 United States Electrical and Computer Engineering Bioengineering Computational and Systems Biology University of Pittsburgh 4420 Bayard St PittsburghPA15213 United States

Simulation on directed graphs is an important method for understanding the dynamics in the systems where connectivity graphs contain cycles. Discrete Stochastic Heterogeneous Simulator (DiSH) is one of the simulation tools with wide application, which uses regulator values to calculate state updates of regulated elements. Here we present a new simulation approach DiSH-trend which also takes into account the trends in regulating elements. We demonstrate the features of trend-based regulation, as well as hybrid regulation, which is a combination of the trend- and level-based approaches. The modeling capabilities are demonstrated on a small toy model, showcasing different functionalities. Real-world capabilities are demonstrated on a larger network model of food insecurity in the Ethiopian region Oromia. Adding trend-based regulation to models results in increased modeling flexibility, and hybrid regulation improves qualitative dynamic behavior prediction. With appropriate data, DiSH-trend becomes a powerful tool for exploring intervention strategies. Copyright © 2021, The Authors. All rights reserved.

关键词： Stochastic systems

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Initial human study of an AWSM-PET Device for Augmented Whole-body PET Imaging

Initial human study of an AWSM-PET Device for Augmented Whol...

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IEEE Symposium on Nuclear Science (NSS/MIC)

作者： Y. Chen M. Hamdi S. Komarov A. Thomas R. A. Mintzer S. Cho D. Pocci J. Corbeil J. Breuer M. S. Judenhofer N. Wu L. Cai J. Frye F. Dehdashti J. A. O’Sullivan R. Laforest S. B. Siegel Y.-C. Tai Washington University in St.Louis Imaging Science PhD program St. Louis Missouri United States of America Washington University in St.Louis Radiology St. Louis Missouri United States of America Washington University in St.Louis Chemistry St. Louis Missouri United States of America Siemens Medical Solutions USA Inc. Molecular Imaging Knoxville Tennessee United States of America Washington University in St.Louis Public Health Sciences St. Louis Missouri United States of America Washington University in St.Louis Electrical & Systems Engineering St. Louis Missouri United States of America

ISBN: (数字)9798350388152

ISBN: (纸本)9798350388169

The Augmented Whole-body Scanning via Magnifying PET (AWSM-PET) device is a novel technology designed to improve the detectability of lesions in whole-body PET/CT imaging. We have developed a prototype AWSM-PET device that consists of two panels of high-resolution time-of-flight (TOF) PET detectors, integrated with the standard readout electronics and event processing architecture of the Biograph Vision (Siemens Healthineers). The system exhibits excellent spatial, energy and timing resolution, with an average coincidence resolving time of $\sim 217$ ps FWHM and an average energy resolution of $\sim 11 \%$ FWHM at 511 keV. Custom firmware and software have been developed to encode the large number of detector elements and to form coincidences between the AWSM-PET detectors and the Biograph Vision scanner. We have pioneered a specialized image reconstruction approach utilizing a GPU-based list-mode framework, which incorporates the system’s point-spread function (PSF) to optimize image quality and spatial resolution. Continuous-bed motion (CBM) whole-body imaging protocols have been implemented for the AWSM-PET operation to improve the uniformity of sensitivity across the patient’s body. Sensitivity enhancement was evaluated using a point source. The first human subject study was a head-andneck cancer patient scheduled for a standard-of-care (SOC) FDG PET/CT scan following treatment. Both the SOC-PET/CT images and the AWSM-PET images were acquired simultaneously for a total of 17 minutes using the CBM mode. Results show high-resolution and high-quality AWSM-PET images. We anticipate to image more patients in the summer, refine AWSM-PET image reconstruction parameters and correction techniques. Comparison between the AWSM-PET and the SOC-PET/CT will be presented at the 2024 IEEE MIC conference.

关键词： Microwave integrated circuits Sensitivity Biographies Energy resolution Whole-body PET Software Timing

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Corrigendum to "Curcumin-laden dual-targeting fucoidan/chitosan nanocarriers for inhibiting brain inflammation via intranasal delivery" [Int. J. Biol. Macromol. 181 (2021) 835-846]

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International journal of biological macromolecules 2022年 206卷 1040-1041页

作者： Trong-Ming Don Wan-Ju Chang Pei-Ru Jheng Yi-Cheng Huang Er-Yuan Chuang Department of Chemical and Materials Engineering Tamkang University New Taipei City Taiwan College of Life Sciences Department of Food Science National Taiwan Ocean University Keelung Taiwan Graduate Institute of Biomedical Materials and Tissue Engineering International PhD Program in Biomedical Engineering Graduate Institute of Biomedical Optomechatronics School of Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei Taiwan Research Center of Biomedical Device Taipei Medical University Taipei Taiwan Cell Physiology and Molecular Image Research Center Taipei Medical University-Wan Fang Hospital Taipei Taiwan. Cell Physiology and Molecular Image Research Center Taipei Medical University-Wan Fang Hospital Taipei Taiwan. Electronic address: ychuang@mail.ntou.edu.tw. Cell Physiology and Molecular Image Research Center Taipei Medical University-Wan Fang Hospital Taipei Taiwan. Electronic address: eychuang@tmu.edu.tw.

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Autonomic Dysfunction in REM Sleep Disorder: The Role of Respiration in HRV Analysis*

Autonomic Dysfunction in REM Sleep Disorder: The Role of Res...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Parisa Sattar Nicla Mandas Giulia Baldazzi Elisa Facchini Elisa Casaglia Michela Figorilli Laura Giorgetti Pietro Mattioli Francesco Calizzano Francesco Fama Dario Arnaldi Monica Puligheddu Danilo Pani Pablo Laguna Raquel Bailon Department of Biomedical Sciences Neuroscience PhD Program University of Cagliari Cagliari Italy Department of Electrical and Electronic Engineering MeDSP Lab University of Cagliari Cagliari Italy The Hadron Academy Istituto Universitario di Studi Superiori IUSS Pavia Italy Interdepartmental Sleep Disorder Research Center University of Cagliari Cagliari Italy SC Neurology AziendaOspedaliero-Universitaria Cagliari Italy Department of Neuroscience Rehabilitation Ophthalmology Genetics Maternal and Child Health (DINOGMI) Clinical Neurology University of Genoa Genoa Italy Neurophysiopathology Unit IRCCS Ospedale Policlinico San Martino Genoa Italy Biomedical Signal Interpretation and Computational Simulation (BSICoS) Aragón Institute for Engineering Research (I3A) IIS Aragón University of Zaragoza Spain Zaragoza Spain Centro de Investigacion Biomedica en Red en Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN) Madrid Spain

ISBN: (数字)9798350371499

ISBN: (纸本)9798350371505

Autonomic nervous system (ANS) has been suggested often associated with the isolated rapid eye movement (REM) sleep behavior disorder (iRBD), with iRBD, and heart rate variability (HRV) is a commonly used tool to assess it. However, the accuracy of HRV is heavily influenced by respiratory rate (RespR), potentially causing misinterpretation of frequency domain HRV indices. This study compares sleep-related ANS function between iRBD patients and a control group (CG) using respiratory-adjusted HRV spectral analysis. It involves 20 iRBD and 20 CG participants in each group, from which five-minute ECG signal epochs during N2, N3, and REM sleep phases are analyzed. RespR were estimated from ECG-derived respiratory signals. Both low and high frequency bands definition for HRV analysis were redefined using the RespR. The results indicate significant differences in HRV parameters between iRBD and CG subjects during REM sleep, highlighting disrupted autonomic regulation in iRBD. This finding is also evident in non-REM phases, thus emphasizing the need to incorporate RespR in HRV analysis, especially in sleep-related studies, for a comprehensive understanding of autonomic dysfunction.

关键词： Phase modulation Frequency-domain analysis Electrocardiography Regulation Rapid eye movement sleep High frequency Heart rate variability engineering in medicine and biology Spectral analysis Parasympathetic nervous system

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SIRT7 is a deacetylase of N4-acetylcytidine on ribosomal RNA

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Genome Instability & Disease 2021年第4期2卷 253-260页

作者： Xu, Chenzhong Zhang, Jin Zhang, Jie Liu, Baohua Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) Guangdong Key Laboratory of Genome Stability and Human Disease Prevention National Engineering Research Center for Biotechnology (Shenzhen) International Cancer Center School of Basic Medical Sciences Shenzhen University Shenzhen China Shenzhen University (SZU)-Friedrich Schiller University (FSU) Jena Joint PhD Program Shenzhen University Shenzhen China Shenzhen Bay Laboratory Shenzhen China

N-acetyltransferase 10 catalyzes RNA N4-acetylcytidine (ac4C) modifications and thus regulates RNA stability and translation efficiency. However, the deacetylase for ac4C is unknown. SIRT7 was initially identified as an NAD+-dependent protein deacetylase and plays essential roles in genome stability, circadian rhythms, metabolism, and aging. In this study, we identified SIRT7 as a deacetylase of the ac4C of ribosomal (r)RNA for the first time and found it to be NAD+-independent. Our data highlight the important role of SIRT7 in rRNA ac4C modification and suggest an additional epitranscriptional regulation of aging.

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Microfluidic nanodevices for drug sensing and screening applications

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Biosensors and Bioelectronics 2023年 219卷 114783页

作者： Pal, Arnab Kaswan, Kuldeep Barman, Snigdha Roy Lin, Yu-Zih Chung, Jun-Hsuan Sharma, Manish Kumar Liu, Kuei-Lin Chen, Bo-Huan Wu, Chih-Cheng Lee, Sangmin Choi, Dongwhi Lin, Zong-Hong Institute of Biomedical Engineering National Tsing Hua University Hsinchu30013 Taiwan International Intercollegiate PhD Program National Tsing Hua University Hsinchu30013 Taiwan Department of Power Mechanical Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Chemistry National Tsing Hua University Hsinchu30013 Taiwan Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu30013 Taiwan Department of Gastroenterology and Hepatology Chang Gung Memorial Hospital Linkou Medical Center Taoyuan333 Taiwan Center of Quality Management National Taiwan University Hospital Hsinchu Branch Hsinchu30059 Taiwan College of Medicine National Taiwan University Taipei10051 Taiwan Institute of Cellular and System Medicine National Health Research Institute Zhunan 35053 Taiwan School of Mechanical Engineering Chung-Ang University Seoul06974 Korea Republic of Kyung Hee University Gyeonggi 17104 Korea Republic of

The outbreak of pandemics (e.g., severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 in 2019), influenza A viruses (H1N1 in 2009), etc.), and worldwide spike in the aging population have created unprecedented urgency for developing new drugs to improve disease treatment. As a result, extensive efforts have been made to design novel techniques for efficient drug monitoring and screening, which form the backbone of drug development. Compared to traditional techniques, microfluidics-based platforms have emerged as promising alternatives for high-throughput drug screening due to their inherent miniaturization characteristics, low sample consumption, integration, and compatibility with diverse analytical strategies. Moreover, the microfluidic-based models utilizing human cells to produce in-vitro biomimetics of the human body pave new ways to predict more accurate drug effects in humans. This review provides a comprehensive summary of different microfluidics-based drug sensing and screening strategies and briefly discusses their advantages. Most importantly, an in-depth outlook of the commonly used detection techniques integrated with microfluidic chips for highly sensitive drug screening is provided. Then, the influence of critical parameters such as sensing materials and microfluidic platform geometries on screening performance is summarized. This review also outlines the recent applications of microfluidic approaches for screening therapeutic and illicit drugs. Moreover, the current challenges and the future perspective of this research field is elaborately highlighted, which we believe will contribute immensely towards significant achievements in all aspects of drug development. © 2022 Elsevier B.V.

关键词： Microfluidics

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