keyword
MENU ▼
Read by QxMD icon Read
search

electro

keyword
https://www.readbyqxmd.com/read/28231660/-effect-of-telbivudine-on-infants-born-to-hbsag-positive-mothers-with-non-hypo-response-to-hepatitis-b-vaccine-during-their-second-and-third-trimesters-of-pregnancy
#1
X X Xu, B Wang, X F Wang, H X Wen, F Zhang, Z Q Yang, H Y Hao, T Wang, X H Shi, Z D Fu, B Wang, S P Wang
Objective: To explore the effect of telbivudine treatment in a prevention program on infants born to HBsAg-positive mothers with non-/hypo-responsiveness to hepatitis B vaccine. Methods: A retrospective cohort study with a total of 321 HBsAg-positive pregnant women and their infants enrolled, was conducted. The mothers were recruited from the Third People' s Hospital of Taiyuan, from July 2011 to January 2013. According to the situation of telbivudine intake in second and third trimesters of pregnancy, the participants were divided into two groups: with telbivudine-treated or as control...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28228843/a-new-mechanism-for-efficient-hydrocarbon-electro-extraction-from-botryococcus-braunii
#2
Alexis Guionet, Bahareh Hosseini, Justin Teissié, Hidenori Akiyama, Hamid Hosseini
BACKGROUND: Recent understanding that specific algae have high hydrocarbon production potential has attracted considerable attention. Botryococcus braunii is a microalga with an extracellular hydrocarbon matrix, which makes it an appropriate green energy source. RESULTS: This study focuses on extracting oil from the microalgae matrix rather than the cells, eliminating the need for an excessive electric field to create electro-permeabilization. In such a way, technical limitations due to high extraction energy and cost can be overcome...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28227551/detecting-slow-eye-movement-for-recognizing-driver-s-sleep-onset-period-with-eeg-features
#3
Yingying Jiao, Bao-Liang Lu, Yingying Jiao, Bao-Liang Lu, Baa-Liang Lu, Yingying Jiao
Slow eye movement (SEM) is reported as a reliable indicator of sleep onset period (SOP) in sleep researches, but its characteristics and functions for detecting driving fatigue have not been fully studied. Through visual observations on ten subjects' experimental data, we found that SEMs tend to occur during eye closure events (ECEs). SEMs accompanied with alpha wave's attenuation during simulated driving was observed in our study. We used box plots to analyze the distribution of durations of different ECEs to measure sleepiness level...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227523/a-measure-of-cortico-cortical-potentials-evoked-by-10-hz-direct-electrical-stimulation-of-the-brain-and-by-means-of-a-differential-recording-mode-of-electrocorticographic-signals
#4
Marion Vincent, Olivier Rossel, Hugues Duffau, Francois Bonnetblanc, David Guiraud, Marion Vincent, Olivier Rossel, Hugues Duffau, Francois Bonnetblanc, David Guiraud, Olivier Rossel, David Guiraud, Francois Bonnetblanc, Hugues Duffau, Marion Vincent
Direct electrical stimulation (DES) at 60 Hz is used to perform real-time functional mapping of the brain during wide-awake neurosurgery. The electrophysiological effects of DES are largely unknown, locally and at a more remote distance. Here, by lowering the DES frequency to 10 Hz and by using a differential recording mode of electro-corticographic (ECoG) signals to improve the focality, we were able to record cortico-cortical evoked potentials easily with standard current amplitude of stimulation (2 mA). DES applied at 10 Hz and differential recording of ECoG could be used to map on-line the connectivity between different sub-cortical and cortical areas with a higher spatial accuracy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227445/quantitative-estimation-of-electro-osmosis-force-on-charged-particles-inside-a-borosilicate-resistive-pulse-sensor
#5
Mostafa Ghobadi, Yuqian Zhang, Ankit Rana, Ehsan T Esfahani, Leyla Esfandiari, Mostafa Ghobadi, Yuqian Zhang, Ankit Rana, Ehsan T Esfahani, Leyla Esfandiari, Ehsan T Esfahani, Yuqian Zhang, Ankit Rana, Mostafa Ghobadi
Nano and micron-scale pore sensors have been widely used for biomolecular sensing application due to its sensitive, label-free and potentially cost-effective criteria. Electrophoretic and electroosmosis are major forces which play significant roles on the sensor's performance. In this work, we have developed a mathematical model based on experimental and simulation results of negatively charged particles passing through a 2μm diameter solid-state borosilicate pore under a constant applied electric field. The mathematical model has estimated the ratio of electroosmosis force to electrophoretic force on particles to be 77...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227411/source-imaging-of-simple-finger-movements-captured-during-auditory-response-tasks-using-space-time-frequency-based-sparsity-constraints
#6
Aritra Chaudhuri, Aurobinda Routray, Aritra Chaudhuri, Aurobinda Routray, Aurobinda Routray, Aritra Chaudhuri
Neural Information Flow during simple cognitive or motor actions is a significant research topic; one of which is a simple finger movement. In this paper, Electro-encephalograph (EEG) Source Imaging has been used to model the Neural Information flow, during performance of a simple Auditory Response Task (ART), specifically by employment of a space-time-frequency sparsity constrained based algorithm, namely, Spatio-temporal Unifying Tomography (STOUT). The estimated sources are then studied according to location defined based on Destrieux atlas...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227266/dictionary-learning-for-sparse-representation-and-classification-of-neural-spikes
#7
Ahmed H Dallal, Yiran Chen, Douglas Weber, Zhi-Hong Mao, Ahmed H Dallal, Yiran Chen, Douglas Weber, Zhi-Hong Mao, Douglas Weber, Zhi-Hong Mao, Yiran Chen, Ahmed H Dallal
Spike sorting is the problem of identifying and clustering neurons spiking activity from recorded extracellular electro-physiological data. This is important for experimental neuroscience. Existing approaches to solve this problem consist of three steps: spike detection, feature extraction, and clustering. In our method, we use Fisher discriminant based dictionary learning to learn dictionary, whose sub-dictionaries are class specific, and estimate discriminative sparse coding coefficients by minimizing the within class scatter and maximizing the between class scatter...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227158/interventional-placement-of-thin-coil-shaped-implants-powered-wirelessly-for-monitoring-vital-signals-and-controlling-abnormal-activities-by-electro-stimulation
#8
Hidetoshi Ohta, Masanobu Honda, Makoto Takamiya, Hidetoshi Ohta, Masanobu Honda, Makoto Takamiya, Masanobu Honda, Hidetoshi Ohta, Makoto Takamiya
Various types of implants are being commonly used for monitoring vital signals and controlling the critically ill patient's condition such as arrhythmia, sick sinus syndrome, etc. For implanting these medical devices under the skin, surgery is inevitable. These days many patients are more willing to accept interventional therapies that are less invasive, especially inserting a catheter into a blood vessel or endoscopy through a natural orifice. To be able to use interventional therapy for implanting medical devices, they will need to be small enough to fit them through a catheter or the forceps channel of an endoscope...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227094/mutual-information-based-feature-selection-for-low-cost-bcis-based-on-motor-imagery
#9
L Schiatti, L Faes, J Tessadori, G Barresi, L Mattos, L Schiatti, L Faes, J Tessadori, G Barresi, L Mattos, G Barresi, L Mattos, J Tessadori, L Faes, L Schiatti
In the present study a feature selection algorithm based on mutual information (MI) was applied to electro-encephalographic (EEG) data acquired during three different motor imagery tasks from two dataset: Dataset I from BCI Competition IV including full scalp recordings from four subjects, and new data recorded from three subjects using the popular low-cost Emotiv EPOC EEG headset. The aim was to evaluate optimal channels and band-power (BP) features for motor imagery tasks discrimination, in order to assess the feasibility of a portable low-cost motor imagery based Brain-Computer Interface (BCI) system...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226999/acoustic-emission-and-angular-movement-variations-from-early-adulthood-healthy-knees-to-late-adulthood-osteoarthritic-knees
#10
Lik-Kwan Shark, Hongzhi Chen, Wei Quan, John Goodacre, Lik-Kwan Shark, Hongzhi Chen, Wei Quan, John Goodacre, Hongzhi Chen, Wei Quan, Lik-Kwan Shark, John Goodacre
From sit-stand-sit movements performed by healthy and osteoarthritic knees in three different age bands, this paper presents the investigation of the relationship between joint angular movement measured using electro-goniometers and acoustic emission measured using piezoelectric sensors. By partitioning joint movement in each sit-stand-sit cycle into sub-movement phases based on ascending and descending as well as acceleration and deceleration, the statistical analysis reveals aged and osteoarthritic knees exhibiting increased asymmetry and more variable angular movement compared with young and age-matched healthy knees, particularly in the descending-deceleration phase...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226919/an-online-recursive-autocalibration-of-triaxial-accelerometer
#11
Lin Ye, Steven W Su, Dong Lei, Hung T Nguyen, Lin Ye, Steven W Su, Dong Lei, Hung T Nguyen, Steven W Su, Hung T Nguyen, Lin Ye, Dong Lei
In this paper, we proposed a novel method for autocalibration of triaxial Micro-Electro-Mechanical systems (MEMS) accelerometer that does not require any sophisticated laboratory facilities. In particular, this method is an online calibration method which can be conveniently implemented with the accuracy of MEMS accelerometer being significantly improved. The procedure exploits the fact that the output vector of the accelerometer must match the local gravity in static state condition. To achieve online calibration, the model as well as the cost function are linearized at the beginning, and an online recursive method is then utilized to identify the unknown parameters and remove the bias caused by linearization...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226851/transcranial-focused-ultrasound-for-bold-fmri-signal-modulation-in-humans
#12
Leo Ai, Jerel K Mueller, Andrea Grant, Yigitcan Eryaman, Wynn Legon, Leo Ai, Jerel K Mueller, Andrea Grant, Yigitcan Eryaman, Wynn Legon, Andrea Grant, Wynn Legon, Yigitcan Eryaman, Leo Ai, Jerel K Mueller
Transcranial focused ultrasound (tFUS) is an emerging form of non-surgical human neuromodulation that confers advantages over existing electro and electromagnetic technologies by providing a superior spatial resolution on the millimeter scale as well as the capability to target sub-cortical structures non-invasively. An examination of the pairing of tFUS and blood oxygen level dependent (BOLD) functional MRI (fMRI) in humans is presented here.
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226834/a-survey-on-the-feasibility-of-surface-emg-in-facial-pacing
#13
Ville Rantanen, Mirja Ilves, Antti Vehkaoja, Anton Kontunen, Jani Lylykangas, Eeva Makela, Markus Rautiainen, Veikko Surakka, Jukka Lekkala, Ville Rantanen, Mirja Ilves, Antti Vehkaoja, Anton Kontunen, Jani Lylykangas, Eeva Makela, Markus Rautiainen, Veikko Surakka, Jukka Lekkala, Veikko Surakka, Jukka Lekkala, Mirja Ilves, Markus Rautiainen, Anton Kontunen, Antti Vehkaoja, Jani Lylykangas, Ville Rantanen, Eeva Makela
A survey on the feasibility of surface electromyography (EMG) measurements in facial pacing is presented. Pacing for unilateral facial paralysis consists of the measurement of activity from the healthy side of the face and functional electrical stimulation to reanimate the paralyzed one. The goal of this study is to evaluate the feasibility of surface EMG as a measurement method to detect muscle activations and to determine their intensities. Prior work is discussed, and results from experiments where 12 participants carried out a set of facial movements are presented...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226500/sensing-textile-seam-line-for-wearable-multimodal-physiological-monitoring
#14
M McKnight, T Agcayazi, H Kausche, T Ghosh, A Bozkurt, M McKnight, T Agcayazi, H Kausche, T Ghosh, A Bozkurt, T Ghosh, T Agcayazi, M McKnight, A Bozkurt, H Kausche
This paper investigates a novel multimodal sensing method by forming seam-lines of conductive textile fibers into commercially available fabrics. The proposed ultra-low cost micro-electro-mechanical sensor would provide, wearable, flexible, textile based biopotential signal recording, wetness detection and tactile sensing simultaneously. Three types of fibers are evaluated for their array-based sensing capability, including a 3D printed conductive fiber, a multiwall carbon nanotube based fiber, and a commercially available stainless steel conductive thread...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225254/insights-into-free-volume-variations-across-ion-exchange-membranes-upon-mixed-solvents-uptake-by-small-and-ultra-small-angle-neutron-scattering
#15
Francois-Marie Allioux, Christopher J Garvey, Christine Rehm, Blaise L Tardy, Raymond Riley Dagastine, Peter D Hodgson, Lingxue Kong, Ludovic Francis Dumée
Ion-exchange membranes are composite separation materials increasingly used in a variety of electro-membranes and electro-chemical processes. Although promising for solvent reclamation, to date, their main applications are limited to aqueous environments due to physico-chemical and microstructural changes of the materials upon exposure to non-aqueous and mixed solvents solutions, affecting long term stability and separation performance. In the present work, the structural changes of commercial and novel hybrid ion-exchange membranes in mixed methanol/water and ethanol/water solutions are assessed for the first time using ultra-and small-angle neutron scattering techniques...
February 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28224900/chemical-oxygen-demand-historical-perspectives-and-future-challenges
#16
REVIEW
René Bernard Geerdink, Ricardo Sebastiaan van den Hurk, Onno Jacob Epema
Determining the chemical oxygen demand (COD) is challenging because of the chemicals that are used in the current methods. There is an urgent need to determine the pollution in surface waters from (heavy) industry via a simple, reliable and fast method. However, the current procedures use hazardous chemicals, such as mercury, to suppress chloride interferences. This challenge has not been resolved. The introduction of modern detection techniques, such as chemiluminescence and oxidation procedures, e.g., microwave and ultrasound dissolution, has not resulted in a breakthrough...
April 8, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28221758/synthesis-and-fabrication-of-collagen-coated-ostholamide-electrospun-nanofiber-scaffold-for-wound-healing
#17
Subramani Kandhasamy, Sathiamurthi Perumal, Balaraman Madhan, Narayanan Umamaheswari, Javaid Ahmad Banday, Paramasivan Thirumalai Perumal, Vichangal Pridiuldi Santhanakrishnan
A novel scaffold for effective wound healing treatment was developed utilizing natural product bearing collagen based biocompatible electro-spun nanofibres. Initially, ostholamide (OSA) was synthesized from osthole (a natural coumarin), characterized by 1H, 13C, DEPT-135 NMR, ESI-MS and FT-IR spectroscopy analysis. OSA was incorporated into Polyhydroxybutyrate (PHB) and Gelatin (GEL), which serve as templates for electro-spun nanofibers. The coating of OSA-PHB-GEL nanofibers with collagen resulted in PHB-GEL-OSA-COL nanofibrous scaffold which mimics extra cellular matrix and serves as an effective biomaterial for tissue engineering applications, especially for wound healing...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28221722/self-supported-ptaup-alloy-nanotube-arrays-with-enhanced-activity-and-stability-for-methanol-electro-oxidation
#18
Lili Zhang, Liang-Xin Ding, Hongbin Chen, Dongdong Li, Suqing Wang, Haihui Wang
Inhibiting CO formation can more directly address the problem of CO poisoning during methanol electro-oxidation. In this study, 1D self-supported porous PtAuP alloy nanotube arrays (ANTAs) are synthesized via a facile electro-codeposition approach and present enhanced activity and improved resistance to CO poisoning through inhibiting CO formation (non-CO pathway) during the methanol oxidation reaction in acidic medium. This well-controlled Pt-/transition metal-/nonmetal ternary nanostructure exhibits a specific electroactivity twice as great as that of PtAu alloy nanotube arrays and Pt/C...
February 21, 2017: Small
https://www.readbyqxmd.com/read/28220761/electrically-tunable-terahertz-polarization-converter-based-on-overcoupled-metal-isolator-metal-metamaterials-infiltrated-with-liquid-crystals
#19
Borislav Vasić, Dimitrios C Zografopoulos, Goran Isić, Romeo Beccherelli, Radoš Gajić
Large birefringence and its electrical modulation by means of Fréedericksz transition makes nematic liquid crystals (LCs) a promising platform for tunable terahertz (THz) devices. The thickness of standard LC cells is in the order of the wavelength, requiring high driving voltages and allowing only a very slow modulation at THz frequencies. Here, we first present the concept of overcoupled metal-isolator-metal (MIM) cavities that allow for achieving simultaneously both very high phase difference between orthogonal electric field components and large reflectance...
February 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28219996/electrical-tuning-of-the-polarization-state-of-light-using-graphene-integrated-anisotropic-metasurfaces
#20
Shourya Dutta-Gupta, Nima Dabidian, Iskandar Kholmanov, Mikhail A Belkin, Gennady Shvets
Plasmonic metasurfaces have been employed for moulding the flow of transmitted and reflected light, thereby enabling numerous applications that benefit from their ultra-thin sub-wavelength format. Their appeal is further enhanced by the incorporation of active electro-optic elements, paving the way for dynamic control of light's properties. In this paper, we realize a dynamic polarization state generator using a graphene-integrated anisotropic metasurface (GIAM) that converts the linear polarization of the incident light into an elliptical one...
March 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
keyword
keyword
80418
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"