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4,578
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4,578 results for “Assistance”
Data for: Magnetic-field-assisted molecular beam epitaxy: Engineering of Fe3O4 ultrathin films on MgO(111)
<p>Molecular beam epitaxy is widely used for engineering low-dimensional materials. Here, we present a novel extension of the capabilities of this method by assisting epitaxial growth with the presence of an external magnetic field (MF). MF-assisted epitaxial growth was implemented under ultra-high vacuum conditions thanks to specialized sample holders for generating in-plane or out-of-plane MF and dedicated manipulator stations with heating and cooling options. The significant impact of MF on the magnetic properties was shown for ultra-thin epitaxial magnetite films grown on MgO(111). Using in situ and ex situ characterization methods, scanning tunneling microscopy, conversion electron Mössbauer spectroscopy, and the magneto-optic Kerr effect, we showed that the in-plane MF applied during the reactive deposition of 10 nm Fe3O4(111)/MgO(111) heterostructures influenced the growth morphology of the magnetite films, which affects both in-plane and out-of-plane characteristics of the magnetization process. The observed changes are explained in terms of modification of the effective magnetic anisotropy.</p>
Machine Learning-Assisted Discovery of Hidden States in Expanded Free Energy Space
<p>Collective variables (CVs) are crucial parameters in enhanced sampling calculations and strongly impact the quality of the obtained free energy surface. However, many existing CVs are unique to and dependent on the system they are constructed with, making the developed CV non-transferable to other systems. Herein, we develop a non-instructor-led deep autoencoder neural network (DAENN) for discovering general-purpose CVs. The DAENN is used to train a model by learning molecular representations upon unbiased trajectories that contain only the reactant conformers. The prior knowledge of nonconstraint reactants coupled with the here-introduced topology variable and loss-like penalty function are only required to make the biasing method able to expand its configurational (phase) space to unexplored energy basins. Our developed autoencoder is efficient and relatively inexpensive to use in terms of <em>a priori</em> knowledge, enabling one to automatically search for hidden CVs of the reaction of interest.</p>
Dataset for the publication: Bimetallic PtCu/C Catalysts for Glycerol Assisted Hydrogen Evolution in Acidic Media
<p>The dataset covers the research data of the publication (<a href="https://doi.org/10.1002/celc.202201114">https://doi.org/10.1002/celc.202201114</a>) with the title "Bimetallic PtCu/C Catalysts for Glycerol Assisted Hydrogen Evolution in Acidic Media". The provided data comprehend the measured current density, CVs, HPLC data, TEM analyses, powder X-ray diffraction patterns as well as a python script including data analysis and plotting.</p>
Time-Resolved Plasmon-Assisted Generation of Arbitrary Optical-Vortex Pulses- Dataset
<p>This folder contains raw data and information to reproduce the findings of the article titled 'Time-Resolved Plasmon-Assisted Generation of Arbitrary Optical-Vortex Pulses' . Each folder corresponds to a figure in the article.</p> <p>Raw data is provided for the calculations along with the input file and output log of the calculation. When raw data is too large, it is possible to reproduce the calculation from the provided input file. Calculations are performed with <a href="https://octopus-code.org/documentation/12/">Octopus code</a> , the related version and commit number of the code can be retrieved from output log file provided in calculation folder.</p>
Au recovery and particle deposition from Au-Cu-Cl solutions with electrochemically-assisted aqueous reduction
<p>This dataset contains all the measurement data related to the publication titled: <em>Recovery of Gold as Nanoparticles From Gold-Poor Au-Cu-Cl Solutions (2023). </em>The publication introduces the EAR method (electrochemically assisted aqueous reduction): an electrochemical potential pulsing method, where during the time between potential pulses a spontaneous redox reaction contributes to the gold recovery. This occurs through reduction of aqueous gold by aqueous Cu(I) chloride complexes, which are generated via the potential pulse from Cu(II) complexes. This dataset contains:</p> <ul> <li>Cyclic voltammetry data of Au-Cl and Cu-Cl solutions</li> <li>EQCM data of gold recovery with the EAR method</li> <li>Characterization of gold particles recovered onto glassy carbon electrodes (SEM, EDS)</li> </ul> <p>Measurement details can be read in included readme files. Briefly, EQCM data (electrochemical quartz crystal microbalance) data includes the measured electrochemical data in one file (time, potential, current) and the measured QCM data (time, frequency and dissipation change) in another file. Particle deposition folders may contain electrochemical data of deposition, SEM images of surface, CV measurements used for determining electrochemical surface area, images processed for particle size measurement with ImageJ and EDS data depending on the sample.</p> <p> </p> <p> </p>
Supplementary Materials for The Privacy-Value-App Relationship and the Value-Centered Privacy Assistant
<p>Supplementary Figures and Tables for preprint: The Privacy-Value-App Relationship and the Value-Centered Privacy Assistant</p>
Testing autonomous vehicle lane keeping assist system in BeamNG simulator
<p>In this video, you can see some of the failures revealed while testing the driving agent on various road topologies in BeamNG simulator. Road topologies were generated by our tool RIGAA (available at: <a href="https://zenodo.org/record/8242223">Reinforcement learning informed evolutionary search for autonomous systems testing | Zenodo</a>)</p>
Towards computer-assisted proofs of parametric Andrews-Curtis simplifications; supplementary materials
<p>This folder contains supplementary materials (proofs and extracted simplification sequences) for the AITP-2023 submission <br> "Towards computer-assisted proofs of parametric Andrews-Curtis simplifications"</p>
Data from: An investigation into the effectiveness of using acoustic touch to assist people who are blind
<p>In this work, we explored the potential of a technique known as "acoustic touch" to assist people who are blind in finding objects. This technique is an auditory sensory augmentation paradigm that uses smart glasses to sonify objects entering the device's field of view. We developed a wearable Foveated Audio Device (FAD) to study the efficacy and usability of using acoustic touch to search, memorise, and reach items. The study involved 14 participants, 7 blind/low vision and 7 sighted blindfolded participants. We compared the wearable device to two idealised conditions, a verbal clock face description and a sequential audio presentation through external speakers. We found that the wearable device can effectively aid the recognition and reaching of an object. We also observed that the device does not significantly increase the user's cognitive workload. These promising results suggest that acoustic touch can provide a wearable and effective method of sensory augmentation.</p>
Data from: Scoring thermal limits in small insects using open-source, computer assisted motion detection
<p>Scoring large amounts of thermal tolerance traits live or with recorded video can be time consuming and susceptible to investigator bias, and as with many physiological measurements, there can be trade-offs between accuracy and throughput. Recent studies show that particle tracking is a viable alternative to manually scoring videos, although it may not detect subtle movements, and many of the software options are proprietary and costly. In this study, we present a novel strategy for automated scoring of thermal tolerance videos by inferring motor activity with motion detection using an open-source Python command line application called DIME (Detector of Insect Motion Endpoint). We apply our strategy to both dynamic and static thermal tolerance assays, and our results indicate that DIME can accurately measure thermal acclimation responses, generally agrees with visual estimates of thermal limits, and can significantly increase the throughput over manual methods.</p>
Advancing Mid-Rectal Cancer Surgery: Unveiling the Potential of Natural Orifice Specimen Extraction Surgery (NOSES) in Comparison to Conventional Laparoscopic-Assisted Resection (CLAR)
<p><strong>Supplementary Material_1</strong><strong>:</strong>These supplementary videos offer a comprehensive visual guide to the NOSES surgical procedure, highlighting each significant step with precision and clarity.</p> <p><strong><em>Supplementary Video 1: Mobilization of the Descending and Sigmoid Colon.</em></strong></p> <p>This video illustrates the crucial first step in the NOSES surgical procedure, demonstrating the meticulous mobilization of the descending and sigmoid colon.</p> <p><strong><em>Supplementary Video 2: Clipping of the Inferior Mesenteric Artery using Hem-o-Lock Clips.</em></strong></p> <p>In this video, the surgical team showcases the precise technique of clipping the inferior mesenteric artery with Hem-o-Lock clips, a key maneuver in the NOSES approach.</p> <p><strong><em>Supplementary Video 3: Dissection of the Mesorectum following Total Mesorectal Excision (TME).</em></strong></p> <p>This video provides an in-depth view of the mesorectal dissection, a critical component of the NOSES procedure, following the principles of Total Mesorectal Excision (TME).</p> <p><strong><em>Supplementary Video 4: Delivery of the Anvil in the Sigmoid and Resection of the Rectum using the Linear Stapler Echelon 60.</em></strong></p> <p>Watch as the surgical team delivers the anvil into the sigmoid and performs rectal resection using the advanced Linear Stapler Echelon 60.</p> <p><strong><em>Supplementary Video 5: Removal of the Anvil Connection Rod at the Distal End of the Sigmoid Colon.</em></strong></p> <p>This video showcases the precise removal of the anvil connection rod at the distal end of the sigmoid colon, ensuring a seamless transition in the surgical process.</p> <p><strong><em>Supplementary Video 6: Transanal Extraction of the Opened Distal Rectal Stump for Smooth Specimen Extraction.</em></strong></p> <p>Observe the meticulous transanal extraction of the opened distal rectal stump in this video, a step that facilitates smooth specimen extraction.</p> <p><strong><em>Supplementary Video 7: Extracorporeal Resection of the Rectal Specimen and Inspection for Adequate Distal Margin.</em></strong></p> <p>This video captures the extracorporeal resection of the rectal specimen, followed by a thorough inspection to ensure an adequate distal margin.</p> <p><strong><em>Supplementary Video 8: Passage of the Head of the Circular Stapler through the Anal Orifice and End-to-End Double-Stapled Anastomosis.</em></strong></p> <p>Witness the precise passage of the circular stapler through the anal orifice, culminating in an end-to-end double-stapled anastomosis.</p> <p><strong><em>Supplementary Video 9: Positioning of the Post-operative Peritoneal Drainage Tube near the Anastomosis Site</em></strong><em>.</em></p> <p>In this video, the surgical team demonstrates the placement of the post-operative peritoneal drainage tube near the site of the anastomosis, a crucial step in the NOSES procedure.</p>
A Study of BioEnterics® Intragastric Balloon (BIB®) System to Assist in the Weight Management of Obese Subjects
ClinicalTrials.gov study NCT00730327. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Cap Assisted Colonoscopy Enhances Quality Based Competency in Colonoscopy Among Trainees
ClinicalTrials.gov study NCT02472730. IPD Sharing: Not stated. Countries: 1. Publications: 15.
Cardiovascular Rehabilitation Early After Stroke Using Feedback-controlled Robotics-assisted Treadmill Exercise
ClinicalTrials.gov study NCT01679600. IPD Sharing: Not stated. Countries: 1. Publications: 5.
Effects of Overground Robot-Assisted Gait Training on Stroke-Related Sarcopenia
ClinicalTrials.gov study NCT06910254. IPD Sharing: NO. Countries: 1. Publications: 14.
A Multi-Site Phase 3 Study of MDMA-Assisted Psychotherapy for PTSD (MAPP2)
ClinicalTrials.gov study NCT04077437. IPD Sharing: YES. Countries: 2. Publications: 3.
Prevention of Infection and Incidence of COVID-19 in Medical Personnel Assisting Patients With New Coronavirus Disease
ClinicalTrials.gov study NCT04405999. IPD Sharing: NO. Countries: 1. Publications: 1.
The HeartWare™ Ventricular Assist System as Destination Therapy of Advanced Heart Failure: the ENDURANCE Trial
ClinicalTrials.gov study NCT01166347. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Effect of Activator-Assisted Talocrural Manipulation on Performance in Elite Volleyball Players
ClinicalTrials.gov study NCT07072260. IPD Sharing: NO. Countries: 1. Publications: 1.
Testing of a Valsalva Assist Device (VAD) in Healthy Volunteers Performing a Valsalva Manoeuvre
ClinicalTrials.gov study NCT03298880. IPD Sharing: NO. Countries: 1. Publications: 1.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.