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218 results for “electron imaging”
Text-fig. 31. Scanning electron microscope (SEM) images of isolated pollen of Piercipollis sp. (a, b) and Teebacia sp. (c–e); Catefica locality, Portugal. a) Isolated pollen grain (arrow) adhering to the much larger pollen of Araucariacites sp. in fragment of a conifer cone; note the size difference between the angiosperm and conifer pollen that is typical in Early Cretaceous floras; b) Pollen grain in (a) enlarged showing the extended aperture and homobrochate reticulum with smooth muri supported by long, scattered, columellae; c) Isolated pollen grains adhering to the outer surface of a Saportanthus parvus flower; d) Pollen grain in (c) enlarged showing the open reticulum and muri ornamented by fine transverse ribs; e) Detail of pollen grain in (d) showing the muri supported by long, scattered columellae; note the fine transverse ribs on the muri. Specimens, Catefica 49-S170139-01 (a, b), Catefica 361-S174322-01 (c–e). Scale bars = 50 Μm (a), 20 Μm (c), 6 Μm (b, d), 1.5 Μm (e). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 31. Scanning electron microscope (SEM) images of isolated pollen of Piercipollis sp. (a, b) and Teebacia sp. (c–e); Catefica locality, Portugal. a) Isolated pollen grain (arrow) adhering to the much larger pollen of Araucariacites sp. in fragment of a conifer cone; note the size difference between the angiosperm and conifer pollen that is typical in Early Cretaceous floras; b) Pollen grain in (a) enlarged showing the extended aperture and homobrochate reticulum with smooth muri supported by long, scattered, columellae; c) Isolated pollen grains adhering to the outer surface of a Saportanthus parvus flower; d) Pollen grain in (c) enlarged showing the open reticulum and muri ornamented by fine transverse ribs; e) Detail of pollen grain in (d) showing the muri supported by long, scattered columellae; note the fine transverse ribs on the muri. Specimens, Catefica 49-S170139-01 (a, b), Catefica 361-S174322-01 (c–e). Scale bars = 50 Μm (a), 20 Μm (c), 6 Μm (b, d), 1.5 Μm (e).
Electron microscopy images of thalamus from acutely hydrogen sulfide poisoned mice
<p class="MsoNormal"><span>To date, the mitochondrial morphological changes that take place after an acute H<sub>2</sub>S exposure are not well described. In the present study, we analyzed images of transmission electron microscopy of thalami from mice subjected to a single acute (1000 ppm) H<sub>2</sub>S exposure and euthanized at various time points to assess the mitochondrial structure and morphometric parameters over time. From our observations, changes induced by H<sub>2</sub>S up to 48 h were mostly limited to increased cristae and matrix compartments' disorganization in mainly accumulated round-shaped mitochondria. At 72 h, H<sub>2</sub>S induced a spectrum of morphological cellular changes. Impaired H<sub>2</sub>S-mediated energy-producing capacity of mitochondria relative to their normal-sized counterparts was inferred from our observations of disorganization and paucity of the inner mitochondrial membrane, the infoldings of which—into cristae—are well-documented to increase the surface area for ATP production, the evaluation of a disorganized network, and likely a disrupted mitophagy because of changes in mitochondrial shape. </span></p>
Data from: Reconstruction of genetically identified neurons imaged by serial-section electron microscopy
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Data from: Setup in a clinical workflow and impact on radiotherapy routine of an in vivo dosimetry procedure with an electronic portal imaging device
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Electron microscopy images of thalamus from acutely hydrogen sulfide poisoned mice
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Light and transmission electron microscopic images for quantitative lung morphology of mechanically ventilated rat lungs.
<p>The joint American Thoracic Socity (ATS) and European Respiratory Society (ERS) guidelines recommend design-based stereology for quantitative morphology of lung structures in health and disease (DOI:<a href="https://doi.org/10.1164/rccm.200809-1522ST"> 10.1164/rccm.200809-1522ST</a>). Design-based stereology is founded on stochatic geometry and rigorous sampling protocols to obtain a set of images which is representative for the whole organ so that the generated data are accurate (unbiased) and sufficiently precise. Regarding quantitative light and electron microscopic analyses lungs were fixed by airway instillation fixation using 1.5 % glutaraldehyde, 1.5% paraformaldehyde in 0.15M HEPES buffer at a hydrostatic pressure of 25 cmH<sub>2</sub>O. Afterwards lungs were subjected to a systematic uniform random sampling for light and transmission electron microscopy based on established protocols (DOI: 10.1016/j.aanat.2013.04.011). Regarding light microscopy, 3 to 4 tissue samples were taken randomly per lung, embedded in plastic (Technovit 8100), sectioned (thickness of 1.5 µm) and stained with toluidine blue. Whole slides were scanned (AxioScanZ.1) and subjected to a systematic uniform area sampling process using newCAST-stereology software (Visiopharm, Hoersholm, Denmark) to image 10% of the section. Depending on the size of the section the goal was to obtain at least 60 (in general >100) randomized light microscopic images per lung for quantitative assessment. Moreover, 6 tissue blocks were randomly taken for transmission electron microscopy, embedded in epoy resin (Epon) and sectioned with a thickness of 80nm. Using an electron microscope (FEI Morgagni transmission electron microscope, Eindhoven, The Netherlands), a systematic uniform area samplinbg was performed and at least 100 micrographs were randomly taken per lung. The dataset in this publication contains the representative light and transmission electron microscopic images of lungs from six different experimental groups (male Fisher 344 rats, aged 11-13 weeks). Healthy rat lung were either not mechanically ventilated (H/ No ventil) or mechanically ventilated with positive end-exspiratory pressure (PEEP) = 1 cmH2O (group H/PEEP1) or PEEP = 5 cmH2O (group H/PEEP5). In addition, lungs suffering from occult lung injury due to bleomycin instillation were also either not mechanically ventilated (B/No ventil) or ventiled with PEEP = 1 cmH2O (B/PEEP1) or PEEP = 5 cmH2O (B/PEEP5). The respiratory rate was 90/min and the tidal volume was 10ml/ kg bodyweight.</p>
Weighted Average Ensemble-Based Semantic Segmentation in Biological Electron Microscopy Images
<p>Data for the Weighted Average Ensemble-Based Semantic Segmentation in Biological Electron Microscopy Images paper</p>
Figure 6 from: Parra-Gómez A, Pérez-Schultheiss J, Fernández LD (2024) Redescription of the enigmatic myriapod Hanseniella chilensis (Hansen, 1903) (Symphyla, Scutigerellidae) based on scanning electron microscope images of Chilean specimens. ZooKeys 1198: 1-15. https://doi.org/10.3897/zookeys.1198.119723
Figure 6 A, B habitus of the species C general habitat where the species can be found.
Data from Imaging and structure analysis of ferroelectric domains, domain walls, and vortices by scanning electron diffraction
<p><strong>Direct electron detectors in scanning transmission electron microscopy give unprecedented possibilities for structure analysis at the nanoscale. In electronic and quantum materials, this new capability gives access to, for example, emergent chiral structures and symmetry-breaking distortions that underpin functional properties. Quantifying nanoscale structural features with statistical significance, however, is complicated by the subtleties of dynamic diffraction and coexisting contrast mechanisms, which often results in low signal-to-noise and the superposition of multiple signals that are challenging to deconvolute. Here we apply scanning electron diffraction to explore local polar distortions in the uniaxial ferroelectric Er(Mn,Ti)O<sub>3</sub>. Using a custom-designed convolutional autoencoder with bespoke regularization, we demonstrate that subtle variations in the scattering signatures of ferroelectric domains, domain walls, and vortex textures can readily be disentangled with statistical significance and separated from extrinsic contributions due to, e.g., variations in specimen thickness or bending. The work demonstrates a pathway to quantitatively measure symmetry-breaking distortions across large areas, mapping structural changes at interfaces and topological structures with nanoscale spatial resolution.</strong></p>
Myocardial Injury in Patients With Cardiac Implantable Electronic Devices Following Magnetic Resonance Imaging
ClinicalTrials.gov study NCT04151953. IPD Sharing: NO. Countries: 1. Publications: 0.
Understanding Factors That Influence Electronic Cigarette Nicotine Delivery Through PET Imaging of Beta-2 Nicotinic Acetylcholine Receptors
ClinicalTrials.gov study NCT04258852. IPD Sharing: NO. Countries: 1. Publications: 0.
A Clinical Trial of the Effectiveness and Safety of Software Assisting Diagnose the Intestinal Polyp Digestive Endoscopy by Analysis of Colonoscopy Medical Images From Electronic Digestive Endoscopy E
ClinicalTrials.gov study NCT05687318. IPD Sharing: NO. Countries: 1. Publications: 0.
Effectiveness of an Electronic Training Program for Orienting and Interpreting [18F]Flutemetamol Positron Emission Tomography (PET) Images
ClinicalTrials.gov study NCT01672827. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Cardiac Implantable Electronic Device Magnetic Resonance Imaging Registry
ClinicalTrials.gov study NCT02459379. IPD Sharing: Not stated. Countries: 0. Publications: 0.
IMAGE RPI Monthly Electron Density Values
The electron density values listed in this file are derived from the IMAGE Radio Plasma Imager (B.W. Reinisch, PI) data using an automatic fitting program written by Phillip Webb with manual correction. The electron number densities were produced using an automated procedure (with manual correction when necessary) which attempted to self-consistently fit an enhancement in the IMAGE RPI Dynamic Spectra to either 1) the Upper Hybrid Resonance band, 2) the Z-mode or 3) the continuum edge. The automatic algorithm works by rules determined by comparison of the active and passive RPI data [Benson et al., GRL, vol. 31, L20803, doi:10.1029/2004GL020847, 2004]. The manual data points are not from frequencies chosen freely by a human. Rather the human specifies that the computer should search for a peak or continuum edge in a certain frequency region. Thus even the manual points are determined, in part, by the automatic algorithms. Of course that does not guarantee that the data points are right, but it does eliminate some human bias.
Electronics Prognostics image
not available
Imaging of Non-local Hot Electron Energy Dissipation via Shot Noise: Data deposit
<p>This content of this data deposit is the following:</p> <p>Archives ‘Data (Fig.1-3, and Fig.S1-S11)’: Raw data and executable files related to figures 1 to 3, and figures S1 to S11 of the publication</p>
Overlapping nanoparticles in transmission electron microscopy images
<p>Transmission electron microscopy images</p> <p><strong>PigmentYellow1&2:</strong> Pigment yellow, C<sub>36</sub>H<sub>32</sub>Cl<sub>4</sub>N<sub>6</sub>O<sub>8</sub>, average object diameter: 181.815 nm, imaging: TEM, image size: 5070x5070 nm (1024x1024 Pixel),</p> <p><strong>MonomodalSilica1&2:</strong> Monomodal colloidal silica, SiO<sub>2</sub>, average object diameter: 20.55 nm, imaging: TEM, image size: 405.56x405.56 nm (1024x1024 pixels)</p> <p><strong>MonomodalPolystyrol</strong>: Monomodal polystyrene, average object diameter: 37,231 nm, imaging: TEM, image size: 1013x1013 nm (1024x1024 pixels)</p> <p><strong>PluginResult: </strong> ImageJ/Fiji-Plugin result (Bachelor-Thesis of Louise Bloch) to count overlapping nanoparticles in transmission electron microscopy images</p>
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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.