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371 results for “Electrode”
Data from: Investigation of the effect of cochlear implant electrode length on speech comprehension in quiet and noise compared with the results with users of electro-acoustic-stimulation, a retrospective analysis
Objectives: This investigation evaluated the effect of cochlear implant (CI) electrode length on speech comprehension in quiet and noise and compare the results with those of EAS users. Methods: 91 adults with some degree of residual hearing were implanted with a FLEX20, FLEX24, or FLEX28 electrode. Some subjects were postoperative electric-acoustic-stimulation (EAS) users; the other subjects were in the groups of electric stimulation-only (ES-only). Speech perception was tested in quiet and noise at 3 and 6 months of ES or EAS use. Speech comprehension results were analyzed and correlated to electrode length. Results: While the FLEX20 ES and FLEX24 ES groups were still in their learning phase between the 3 to 6 months interval, the FLEX28 ES group was already reaching a performance plateau at the three months appointment yielding remarkably high test scores. EAS subjects using FLEX20 or FLEX24 electrodes outscored ES-only subjects with the same short electrodes on all 3 tests at each interval, reaching significance with FLEX20 ES and FLEX24 ES subjects on all 3 tests at the 3-months interval and on 2 tests at the 6- months interval. Amongst ES-only subjects at the 3- months interval, FLEX28 ES subjects significantly outscored FLEX20 ES subjects on all 3 tests and the FLEX24 ES subjects on 2 tests. At the-6 months interval, FLEX28 ES subjects still exceeded the other ES-only subjects although the difference did not reach significance. Conclusions: Among ES-only users, the FLEX28 ES users had the best speech comprehension scores, at the 3- months appointment and tendentially at the 6 months appointment. EAS users showed significantly better speech comprehension results compared to ES-only users with the same short electrodes.
Tracking Decomposition Layer Formation in Thin-Film Si Electrodes via Thermogalvanic Profiles
<p>This dataset contains the raw data for the publication "Tracking Decomposition Layer Formation in Thin-Film Si Electrodes via Thermogalvanic Profiles" by Hubrechtsen et al, published in Small Methods. The upload includes all data for the original figures presented in the main paper and the supporting information, organized in labelled folders containing raw data and the corresponding figure. </p>
Non-invasive recording of EEG from the cervical spinal cord via surface electrodes placed around the neck
<p>Data and scripts used for Chander et al. 2022. EEG data recorded via 10 electrodes placed around the neck of 17 healthy young human individuals, in addition to EEG data recorded from scalp electrodes (numbers of electrodes vary across individuals), an ECG channel, and EOG channels. The reference electrode was placed above the right acromion, the ground electrode above the left acromion. Sampling rate 5000 Hz, online lowpass filter 1000 Hz, online highpass filter .1 Hz (BrainAmp DC amplifier). During recordings, the left median nerve of participants was stimulated using a DS7 Digitimer at ~110% of motor threshold (constant current stimulation, 50-500 µsec pulse width (depending on the participant), square wave) at 3 Hz. 15% of stimuli were pseudo-randomly omitted. Participants counted the number of omissions in each of 3 minute blocks. The montage for neck electrodes is explained in Chander et al. 2022. There are three trigger values: 1 = experimenter pressed a key to start the experiment, or to initiate a new block. 130 = median nerve stimulation. 99 = omission. Further details in Chander et al. 2022. The scripts are mostly aiming at characterizing high-frequency signals (400-1200 Hz) in response to median nerve stimulation (8 to 16 ms), and their dissociation from the evoked response.</p>
Development of a Method for Thermogalvanic Characterization of Li-Ion Electrodes: A Case Study in Thin-Film Anatase TiO2
<p>This dataset contains the raw data for the publication "Development of a Method for Thermogalvanic Characterization of Li-Ion Electrodes: A Case Study in Thin-Film Anatase TiO2" by Hubrechtsen et al, published in Chemistry of Materials. The upload includes all data for the original figures presented in the main paper and the supporting information, organized in labelled folders containing raw data and the corresponding figure. </p>
Non-invasive monitoring of a reactive soil transition zone during water table fluctuations using spectral induced polarization (SIP) and electrodic potential (EP)
<p>Transition zones separating the unsaturated and saturated domains in soils are a hotspot for biogeochemical activity. They are challenging to study because they are dynamic, requiring high resolution temporal and spatial data acquisition methods to capture the biogeochemical processes across the water table. Non-invasive geophysical techniques, such as spectral induced polarization (SIP) and electrodic potential (EP), offer comparatively inexpensive monitoring approaches that yield data on changes in soil electrical properties, driven by reactive processes at high spatial and temporal resolutions. We investigated SIP and EP signal variations in artificial soil-filled columns, experiencing periodic water table fluctuations in order to: (1) assess the effectiveness of SIP and EP in monitoring a complex soil transition zone, and (2) couple the measured geophysical signals to changes in physical, chemical and microbial properties. SIP responses showed a clear dependence on the depth-distribution of microbial biomass. Dynamic imaginary conductivity (<em>σ''</em>) responses were only detected in the water table fluctuation zone and, in contrast to real conductivity (<em>σ'</em>) data, did not exhibit a direct soil moisture driven dependence. We attribute the observed dynamics in <em>σ'' </em>to microbially driven reactions. An EP anomaly arose concurrent to the production of SO<sub>4</sub><sup>2- </sup>as a result of oxygenation at depth during drainage of the columns. Our findings show that continuous SIP and EP signals, in conjunction with periodic measurements of geochemical indicators, can help determine the location and temporal variability of biogeochemical activity and be used to monitor targeted reaction zones and pathways in complex soil environments.</p>
HEK cell aggregation in flow conditions using 3 electrodes in a 4 electrode configuration design
<p>HEK cell aggregation in flow using the 3 electrodes in a 4 electrode configuration design.</p>
Data for "Improving Four-electrode Impedance Measurements by Numerical Simulations"
<p>Replication data for "Improving Four-electrode Impedance Measurements by Numerical Simulations"</p>
Data set for "Influences on Reliable Capacity Measurements of Hard Carbon in Highly Loaded Electrodes"
<p>C. Müller, Z. Wang, A. Hofmann, P. Stüble, X. Liu-Théato, J. Klemens, A. Smith, Batteries & Supercaps 2023, 6, e202300322. https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/batt.202300322</p> <h1>Abstract</h1> <p><code>For the development of a full-cell battery system, typically appropriate cathodes and anodes are characterized within a half-cell setup where a metal counter electrode is installed to gather data about the employed electrodes. Ultimately, the individual capacity loadings allow for suitable balancing of the anode to cathode capacity in the full-cell. This approach seems rather unproblematic for lithium-ion batteries. For sodium-ion batteries, however, we show that the high reactivity of sodium metal strongly influences hard carbon-based electrode measurements within sodium-ion half-cells. As hard carbon is considered state-of-the-art anode material, the presented results have high impact on the development of sodium ion batteries. Specifically, we show that the type of electrolyte, as well as cell- and measurement-setup are key factors for reliable sodium half-cell measurements of hard carbon. The investigated hard carbon electrodes have a high active material loading of 7.2 mg/cm2 (with 93 % active material content) resulting in an areal capacity of 2.4 mAh/cm2, which represent application-relevant conditions.</code></p> <h1>Funding</h1> <p>This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy - EXC 2154 - Project number 390874152 (POLiS Cluster of Excellence), and contributes to the research performed at Center for Electrochemical Energy Storage Ulm Karlsruhe (CELEST). We would like to thank Dr.-Ing. Philip Scharfer and Prof. Dr.-Ing. Wilhelm Schabel from Thin Film Technology at KIT for coating and drying electrodes in their TFT Coating and Printing Lab within the scope of the joint research in the DFG Cluster of Excellence POLiS. Open Access funding enabled and organized by Projekt DEAL.</p>
Data from: Flexible transparent electrodes based on silver nanowires synthesized via a simple method
Silver nanowires (Ag NWs) with the length of ~60 μm and the diameter of ~300 nm are prepared via a simple, cost-effective, high-yield and eco-friendly procedure under a high molar concentration ratio of silver nitrate (AgNO3) solution to Poly(vinyl pyrrolidone) (PVP) solution. The pre-synthesized Ag NWs were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and UV-Visible spectrophotometer. Furthermore, the as-prepared silver nanowires were roll-coated on the surfaces of the polyethylene terephthalate (PET) substrates. By optimizing the concentration of silver nanowire solution, the flexible Ag NW/ PET transparent electrodes with a sheet resistance of 3.8 Ω sq-1 at a transmittance of 70% can be fabricated. The results reported in this paper provide a basis for optimizing the growth of silver nanowires and performances of transparent electrodes.
Patch Electrode
SciDraw upload
16 channel Neuronexus electrode
SciDraw upload
Characterization, modelling, and optimization of high-performance nano-columnar micro–Solid Oxide Cell oxygen electrodes
<p>Dataset containing all the data used in the article entitled "Characterization, modelling, and optimization of high-performance nano-columnar micro–Solid Oxide Cell oxygen electrodes".</p>
Competition of Acetone Reduction and Hydrogen Evolution on Pt Single Crystal Electrodes in Absence and Presence of the Ionic Liquid [C2C1Im][OTf]
<p>Raw and treated data</p>
Extra-cochlear Electrode Placement at the Post-auricular Vagus Nerve in Cochlear Implantation
ClinicalTrials.gov study NCT07011927. IPD Sharing: YES. Countries: 1. Publications: 0.
Evaluation of the Infinity Deep Brain Stimulation Electrode Screening Mode Tool
ClinicalTrials.gov study NCT03794661. IPD Sharing: NO. Countries: 1. Publications: 0.
Verify the Performance of the Neutral Electrode (NE) Adhesives
ClinicalTrials.gov study NCT05376787. IPD Sharing: NO. Countries: 1. Publications: 0.
Electrode-based Sensor for Non-invasive Fetal Heart Rate and EMG Monitoring With Improved Reliability
ClinicalTrials.gov study NCT01400880. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Multi-center Study to Examine Changes to the Environment Surrounding the Electrodes in the Cochlea and to Capture the Most Challenging Listening Environments Experienced by Persons With a Cochlear Imp
ClinicalTrials.gov study NCT06173687. IPD Sharing: NO. Countries: 3. Publications: 0.
Stimulating the Cochlear Apex Without Longer Electrodes
ClinicalTrials.gov study NCT06901674. IPD Sharing: YES. Countries: 1. Publications: 0.
Self Abrading Rapidly Applied Electrode Validation
ClinicalTrials.gov study NCT02200523. IPD Sharing: Not stated. Countries: 1. Publications: 0.
ScienceDex guides
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.