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218 results for “lumen”
TLS 1.3 Handshake Data Collected By Lumen
<p>The data file <code>ccr_tls_release.csv.xz</code> contains handshake records and extension information from the TLS connections from the Lumen dataset up to early November 2019.</p>
Text-fig. 26. Scanning electron microscope (SEM) images of stamens and pollen grains of Elasmostemon paisii gen. et sp. nov. (a–c) and laminar stamens with monocolpate reticulate pollen sp. (d–g); Catefica locality, Portugal. a) Stamen fragment with basal portion missing showing two pairs of pollen sacs on one surface of the stamen close to the margin and separated by a broad connective, except near the apex where the thecae meet; note that the thecae are dehisced with the walls of the pollen sacs curled back; b) Pollen grains inside a dehisced pollen sac; note variation in size and development of the reticulum; c) Detail of (b) showing monocolpate, reticulate pollen with lumen of reticulum varying markedly in size but partly obscured by residual organic material; d) Stamen with apical and basal part of anther preserved showing two pairs of pollen sacs (asterisks) on the curved, perhaps ventral, surface close to the stamen margin; e) Detail of crack in the anther showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size; f) Pollen exposed in the crack in the anther; note coarsely foveolate to coarsely reticulate pollen wall and densely spaced orbicules; g) Folded pollen grains with reticulate pollen wall and also showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size. Specimens, Catefica 49-S172560 (a–c), Catefica 50- S170384 (d–g). Scale bars = 600 Μm (a, d), 20 Μm (b, e), 6 Μm (c, f, g). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 26. Scanning electron microscope (SEM) images of stamens and pollen grains of Elasmostemon paisii gen. et sp. nov. (a–c) and laminar stamens with monocolpate reticulate pollen sp. (d–g); Catefica locality, Portugal. a) Stamen fragment with basal portion missing showing two pairs of pollen sacs on one surface of the stamen close to the margin and separated by a broad connective, except near the apex where the thecae meet; note that the thecae are dehisced with the walls of the pollen sacs curled back; b) Pollen grains inside a dehisced pollen sac; note variation in size and development of the reticulum; c) Detail of (b) showing monocolpate, reticulate pollen with lumen of reticulum varying markedly in size but partly obscured by residual organic material; d) Stamen with apical and basal part of anther preserved showing two pairs of pollen sacs (asterisks) on the curved, perhaps ventral, surface close to the stamen margin; e) Detail of crack in the anther showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size; f) Pollen exposed in the crack in the anther; note coarsely foveolate to coarsely reticulate pollen wall and densely spaced orbicules; g) Folded pollen grains with reticulate pollen wall and also showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size. Specimens, Catefica 49-S172560 (a–c), Catefica 50- S170384 (d–g). Scale bars = 600 Μm (a, d), 20 Μm (b, e), 6 Μm (c, f, g).
Ureteroscopy Lumen Segmentation Dataset
<p>This is a dataset for lumen segmentation. The dataset is composed of 1,754 endoscopic images from 23 patients undergoing Ureteroscopy. The dataset is composed of a total 2,187 endoscopic images with its respective masks highlighting the lumen in .png format. The dataset is divided by folders in train/val/test, train and val folders are divided in two sub-folders (image / label) For each image there is a corresponding mask with the same name. The training and validation data is the one described in <strong>[1]</strong>. The test folder is composed of 3 patient cases, test_01, test_02 and test_03. For more details please check the referred publication associated with this dataset. </p><p> </p><p>J. F. Lazo et al., "A Lumen Segmentation Method in Ureteroscopy Images based on a Deep Residual U-Net architecture," 2020 25th International Conference on Pattern Recognition (ICPR), Milan, Italy, 2021, pp. 9203-9210, doi: 10.1109/ICPR48806.2021.9411924.</p>
Conifer Lumen Segmentation (CoLuS) Dataset
<p>Conifer Lumen Segmentation (CoLuS) Dataset used in the publication "Towards ROXAS AI: Deep learning for faster and more accurate conifer cell analysis". More details found in the Github repository: https://marckatzenmaier.github.io/TowardsRoxasAI</p>
TLS Handshake Data Collected By Lumen
<p>This dataset contains TLS handshakes collected from Android devices running the privacy-enhancing app called Lumen between 2015 and 2017. It was used to conduct the first study of TLS usage in Android apps at scale, in a paper titled "Studying TLS Usage in Android Apps" published at ACM International Conference on emerging Networking EXperiments and Technologies (CoNEXT) 2017.</p> <p>It contains anonymized TLS handshake messages (Client Hello, Server Hello), server certificate chains, and general device information and default TLS settings where available.</p> <p> </p>
VivaSight Double Lumen Tube for Single Lung Ventilation
ClinicalTrials.gov study NCT03690284. IPD Sharing: NO. Countries: 1. Publications: 12.
Study of a Lumen- Apposing, Covered, Self-Expanding Metal Stent (Axios™) Versus Multiple Double Pigtail Stents
ClinicalTrials.gov study NCT02673541. IPD Sharing: UNDECIDED. Countries: 1. Publications: 18.
Lung Ultrasonography vs Fiberoptic Bronchoscopy for Aiding Lung Collapse in Patient Using Double Lumen Tube
ClinicalTrials.gov study NCT03314519. IPD Sharing: NO. Countries: 1. Publications: 18.
Clamping the Double Lumen Tube
ClinicalTrials.gov study NCT03508050. IPD Sharing: Not stated. Countries: 1. Publications: 8.
EZ-blocker Versus Left Sided Double Lumen Tube in Adult Patients for Thoracic Surgery
ClinicalTrials.gov study NCT03403192. IPD Sharing: Not stated. Countries: 1. Publications: 9.
AXIOS Lumen Apposing Metal Stent for Walled Off Necrosis Drainage IDE Study
ClinicalTrials.gov study NCT03525808. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Double-lumen Tubes (DLT) - Health Economic Study
ClinicalTrials.gov study NCT03817879. IPD Sharing: NO. Countries: 1. Publications: 1.
C-MAC Blade D Video Vs Macintosh Laryngoscope for Double Lumen Tube Insertion
ClinicalTrials.gov study NCT06759038. IPD Sharing: NO. Countries: 1. Publications: 4.
Clinical Validation of the Lexie Lumen Hearing Aid
ClinicalTrials.gov study NCT05337748. IPD Sharing: NO. Countries: 1. Publications: 3.
Data from: The hindgut-lumen prokaryotic microbiota of the lignocellulose-degrading termite Reticulitermes flavipes and its responses to dietary lignocellulose composition
Reticulitermes flavipes (Isoptera: Rhinotermitidae) is a highly eusocial insect that thrives on recalcitrant lignocellulosic diets through nutritional symbioses with gut-dwelling prokaryotes and eukaryotes. In the R. flavipes hindgut, there are up to 12 eukaryotic protozoan symbionts; the number of prokaryotic symbionts has been estimated in the hundreds. Despite its biological relevance, this diverse community, to date, has been investigated only by culture- and cloning-dependent methods. Moreover, it is unclear how termite gut microbiomes respond to diet changes and what roles they play in lignocellulose digestion. This study utilized high-throughput 454 pyrosequencing of 16S V5-V6 amplicons to sample the hindgut lumen prokaryotic microbiota of R. flavipes and to examine compositional changes in response to lignin-rich and lignin-poor cellulose diets after a 7-day feeding period. Of the ~475 000 high-quality reads that were obtained, 99.9% were annotated as bacteria and 0.11% as archaea. Major bacterial phyla included Spirochaetes (24.9%), Elusimicrobia (19.8%), Firmicutes (17.8%), Bacteroidetes (14.1%), Proteobacteria (11.4%), Fibrobacteres (5.8%), Verrucomicrobia (2.0%), Actinobacteria (1.4%) and Tenericutes (1.3%). The R. flavipes hindgut lumen prokaryotic microbiota was found to contain over 4761 species-level phylotypes. However, diet-dependent shifts were not statistically significant or uniform across colonies, suggesting significant environmental and/or host genetic impacts on colony-level microbiome composition. These results provide insights into termite gut microbiome diversity and suggest that (i) the prokaryotic gut microbiota is much more complex than previously estimated, and (ii) environment, founding reproductive pair effects and/or host genetics influence microbiome composition.
A Dataset of Reconstructed Carotid Bifurcation Lumen and Plaque Models with Centerline Tree and Simulated Hemodynamics
<p><code>carotid_bifurcation_database.zip</code> contains 79 cases of left and right-side carotid bifurcations (152 inner wall models). For each case, inner wall (lumen) and plaque models were extracted from computed tomography angiography (CTA) scans. The models were segmented, reconstructed, and a centerline tree was created for each geometry using the <a href="https://github.com/PepeEulzer/CarotidAnalyzer">CarotidAnalyzer</a> pipeline. The geometries include varying degrees of internal carotid stenosis. Bifurcations with 100% stenosis were omitted, as the vessel is not discernible in the scan.</p> <p><code>carotid_flow_database.zip</code> contains hemodynamic flow simulations of the above models. Fluid data (velocity, pressure) and surface data (wall shear stress) are given in seperate files for each case. For each field, a systolic and diastolic time step are provided.</p> <p><strong>Further information regarding the extraction pipeline and flow simulations can be obtained from the following publications:<br></strong>P. Eulzer, F. von Deylen, W.-C. Hsu, R. Wickenhöfer, C. M. Klingner, and K. Lawonn (2023), A Fully Integrated Pipeline for Visual Carotid Morphology Analysis. Computer Graphics Forum, 42(3): 25-37. <a href="https://doi.org/10.1111/cgf.14808">https://doi.org/10.1111/cgf.14808</a></p> <p>Kevin Richter, Tristan Probst, Anna Hundertmark, Pepe Eulzer, and Kai Lawonn (2024), Longitudinal wall shear stress evaluation using centerline projection approach in the numerical simulations of the patient-based carotid artery. Computer Methods in Biomechanics and Biomedical Engineering, 27(3): 347-364. <a href="https://doi.org/10.1080/10255842.2023.2185478">https://doi.org/10.1080/10255842.2023.2185478</a></p> <p>P. Eulzer, K. Richter, A. Hundertmark, R. Wickenhöfer, C. M. Klingner, and K. Lawonn (2024), Instantaneous Visual Analysis of Blood Flow in Stenoses Using Morphological Similarity. Computer Graphics Forum 43(3): in print. <a href="https://doi.org/10.1111/cgf.15081">https://doi.org/10.1111/cgf.15081</a></p>
Uterine lumen fluid is metabolically semi-autonomous
<p><span>Uterine lumen fluid (ULF) is central to successful pregnancy establishment and maintenance, and impacts offspring wellbeing into adulthood. The current dogma is that ULF composition is primarily governed by endometrial glandular epithelial cell secretions and influenced by progesterone. To investigate the hypothesis that ULF is metabolically semi-autonomous, ULF was obtained from cyclic heifers, and aliquots incubated for various durations prior to analysis by untargeted semi-quantitative metabolomic profiling. Metabolite flux was observed in these ULF isolates, supporting the idea that the biochemical makeup of ULF is semi-autonomously dynamic due to enzyme activities. Subsequent integrative analyses of these, and existing, data predict the specific reactions underpinning this phenomenon. <span>These findings enhance our understanding of the mechanisms leading to pregnancy establishment, with implications for improving fertility and pregnancy outcomes in domestic animals as well as women.</span></span></p>
FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES – 0. Cocconeis sp. (cf. capensis (Cholnoky) Witkowski). SEM (New Caledonia, Melanesia). External views. Biseriate SV striae (16, 18, twin arrows), narrow and straight SV sternum, marginal large area with one row of beads (16–18), SV marginal area with tiny pores (17), SV crater-like areolae with oblong in a zigzag lumen (19), SV areolae with sort of expansions (20). Scale bars: 4 µm (16), 3 µm (18), 700 nm (17), 400 nm (19–20).
FIGURES –. Cocconeis sp. (cf. C. bilicis F.Meister). SEM (New Caledonia, Melanesia). Different specimens with SV sectors separated (or not) by a crista marginalis (21, 24), SV striae uniseriae near the sternum and biseriate thereafter (21, 24), SV areolae lumen with circular ornamentation (23, arrow), crista marginalis (22), SVVC in advalvar view with digit fimbriae (25, arrowhead), large RV axial concave area (26). Scale bars = 6 µm (24), 5 µm (26), 4 µm (21), 3 µm (25), 1 µm (22–23). in Marine Achnanthales (Bacillariophyceae) from New Caledonia (Melanesia): assemblage specificities, ultramafic environment
FIGURES –. Cocconeis sp. (cf. C. bilicis F.Meister). SEM (New Caledonia, Melanesia). Different specimens with SV sectors separated (or not) by a crista marginalis (21, 24), SV striae uniseriae near the sternum and biseriate thereafter (21, 24), SV areolae lumen with circular ornamentation (23, arrow), crista marginalis (22), SVVC in advalvar view with digit fimbriae (25, arrowhead), large RV axial concave area (26). Scale bars = 6 µm (24), 5 µm (26), 4 µm (21), 3 µm (25), 1 µm (22–23).
FIGURE 4. Sculptolumina conradiae, holotype. A. Inmature ascospores with a single lumen. B. Young 1–2-septate ascospores. C–D. Mature 3 in Three new species of crustose Physciaceae from Guatemala, with notes on some additional species
FIGURE 4. Sculptolumina conradiae, holotype. A. Inmature ascospores with a single lumen. B. Young 1–2-septate ascospores. C–D. Mature 3-septate ascospores with four ±rounded lumina (similar to the Conradia-type) and walls not ornamented. D–E. Habit.
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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.