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3,295 results for “fractures”
FIGURE 21 in Deep-sea nematodes of the family Microlaimidae from the Clarion-Clipperton Fracture Zone (North-Eastern Tropic Pacific), with the descriptions of three new species*
FIGURE 21. Microlaimus porosus, females, light micrographs. A, specimen No. 1, head; B, specimen No. 2, head; C, specimen No. 1, two rows of ventrolateral pores (marked by arrows); D, specimen No. 3, anterior end; E, specimen No. 2, region of pharyngeal bulb; F, specimen No. 3, row of ventrolateral pores. Scale bars: A, B, D, F = 10 µm; C, E = 20 µm.
Hydraulic tomography and thermal tracer test data from a fractured-porous field site in Goettingen (Germany)
<p>These data are supplementary material for:</p> <p>Römhild, L., Ringel, L. M., Liu, Q., Hu, L., Ptak, T., & Bayer, P. (2024). Hybrid discrete fracture network inversion of hydraulic tomography data from a fractured-porous field site. Water Resources Research, 60, e2023WR036035. https://doi.org/10.1029/2023WR036035</p> <p>The data set comprises hydraulic tomography and thermal tracer test field data from a porous-fractured site in Göttingen (Germany). The repository contains a schematic figure of the experimental setup and subfolders for the two different experiments. For more information about the data, we refer to the readme files in the repository, and the soon-to-be-published paper (see above).</p>
Comparison of planar digital radiography and helical standing computed tomography for assessment of condylar stress fracture risk in Thoroughbred racehorses
<p class="MsoNormal"><strong>Background</strong>: Catastrophic injury has a low incidence but leads to the death of many Thoroughbred racehorses.</p> <p class="MsoNormal"><strong>Objectives</strong>: To determine sensitivity, specificity, and reliability for condylar stress fracture risk assessment from fetlock digital radiographs (DR) and standing computed tomography (sCT).</p> <p class="MsoNormal"><strong>Study design</strong>: Controlled <em>ex vivo</em> experiment.</p> <p class="MsoNormal"><strong>Methods</strong>: A blinded set of thoracic limb fetlock DR and sCT images were prepared from 31 Thoroughbreds. Four observers evaluated the condyles and parasagittal grooves (PSG) of the third metacarpal bone for the extent of dense bone and lucency/fissure and assigned a risk assessment grade for condylar stress fracture. Sensitivity and specificity for detection of subchondral structural changes in the condyles and PSG and for risk assessment for condylar stress fracture were determined by comparison with a reference. Agreement between observers and the reference assessment and reliability between observers were determined. Intra-observer repeatability was also assessed.</p> <p class="MsoNormal"><strong>Results</strong>: Sensitivity for detection of structural change was lower than specificity for both imaging methods and all observers. For horses with normal risk, observer assessment often agreed with the reference. Sensitivity for risk assessment was lower than specificity for all observers. For horses with a high risk of injury, observers generally underestimated risk. Diagnostic sensitivity of risk assessment was improved with sCT imaging, particularly for horses with elevated risk of injury. Assessment repeatability and reliability was better with sCT than DR.</p> <p class="MsoNormal"><strong>Main limitations</strong>: The <em>ex vivo</em> study design influenced DR image sets.</p> <p class="MsoNormal"><strong>Conclusions</strong>: Risk assessment through screening with diagnostic imaging is a promising approach to improve injury prevention in racing Thoroughbreds. Knowledge of sensitivity and specificity of fetlock lesion detection provides the critical guidance needed to improve screening programs for racehorses. We found improved detection of MC3 subchondral structural change and risk assessment for condylar stress fracture with sCT <em>ex vivo</em>.</p>
Dataset: High-fidelity experimental model verification for flow in fractured porous media
<p>The dataset consists of five image series of tracer experiments in fractured porous media. The images have been taken using PET imaging and are available in DICOM format. Overall, three fractured geometries have been considered, called fractip-a, fractip-b, and fractip-e. Different boundary conditions have been used, generating in total four experiments. In addition, images of simple water displacement experiments in an intact core (fractip-j) are provided, useful for extracting macroscopic hydraulic properties of the core material. All experiments are based on water displacement and use 18F-FDG tracer for PET tracking. The available DICOM images are reconstructed using 1 min x 0.4mm space-time voxels. </p> <p>A related data analysis based on the Darcy Scale Image Analysis toolbox DarSIA is available at 10.5281/zenodo.10410227.</p>
Superalloys fracture process inference based on overlap analysis of 3D models
<h2>Datasets and code utilized in the paper "Superalloys fracture process inference based on overlap analysis of 3D models"</h2> <h2>Code and data description</h2> <h3>Data for 3D reconstruction</h3> <ul> <li>Original SEM images of Fracture A - Fracture D obtained through the collection method in the paper.</li> </ul> <h3>Data for scale calibration</h3> <ul> <li>Original SEM images sequences of marked points 'dot1' and 'dot2' of Fracture A - Fracture D.</li> </ul> <h3>Sharpness score calculation</h3> <ul> <li>'shapeness.m' : Calculating image sharpness using normalized variance equations.</li> <li>'focus_A_data' - 'focus_D_data' : Sharpness scores for all images in the image sequences and their corresponding sample stage coordinates.</li> </ul> <h3>3D fracture models</h3> <ul> <li>Scale calibrated 3D models of Fracture A - Fracture D.</li> </ul> <h3>Description of internal cracks</h3> <ul> <li>Original images and EDS results for an illustration of the regions of internal crack generation in Fracture A</li> </ul> <p> </p> <p> </p>
Additional material for the article "Widespread fracture movements during a volcano-tectonic unrest: the Reykjanes Peninsula, Iceland, from 2019–2021 TerraSAR-X interferometry"
<p><span>Additional Material for the article "Widespread fracture movements during a volcano-tectonic unrest: the Reykjanes Peninsula, Iceland, from 2019–2021 TerraSAR-X interferometry" published in Bulletin of Volcanology (<a href="https://doi.org/10.1007/s00445-023-01699-0" target="_blank" rel="noopener">https://doi.org/10.1007/s00445-023-01699-0</a>).<br></span></p> <p> </p> <p><span>Description of the content in the zip folder:</span></p> <p><span>The georeferenced mapped discontinuities are listed in text files that are classed </span><span>by interferogram date and track. Each file contains a list of longitude and lati</span><span>tude values of the mapped fractures, with the beginning of each fracture trace</span><span> </span><span>annotated by a line starting with ">" and the fracture ID (i.e., the number of </span><span>the fracture starting at 1 in each file), the QI (1, 2 or 3), the estimated sense of</span><span> </span><span>motion (N for normal or SL for strike-slip), and the indicative LOS amplitude</span><span> </span><span>of motion.</span></p>
Capillary-driven backflow during salt precipitation in a rock fracture
<p>Datasets for the manuscript "Capillary-driven backflow during salt precipitation in a fracture" by Chen et al.</p>
An Analytical Formulation for Correcting the Relative Permeability of Gas-Water Flow in Propped Fractures Considering the Effect of Brinkman Flow
<p>Brinkman flow can impose a strong effect on the fluid transportation within propped fractures, as well as on the well productivity.</p>
An Analytical Formulation for Correcting the Relative Permeability of Gas-Water Flow in Propped Fractures Considering the Effect of Brinkman Flow
<p><span><span>·<span> </span></span></span><span>The viscous shear from fracture walls and the resistance from propping materials induce Brinkman flow in propped fractures</span><span>.</span></p> <p><span><span>·<span> </span></span></span><span>Neglecting the effect of Brinkman flow can cause significant errors in evaluating the gas-water relative permeability in propped fractures.</span></p> <p><span><span>·<span> </span></span></span><span>An analytical formulation is proposed to correct the relative permeability of gas-water flow in propped fractures considering Brinkman flow.</span></p>
Postural Stability and Functional Balance in Older Adults with Femoral Neck Fractures
<p><span>Hip Muscle Strength on Postural Stability and Functional Balance in Elderly Adults Post-Hip Fracture</span></p>
Supplementary figures to Effect of bisphosphonates on vertebral fractures in HIV infected males: 7-years longitudinal study
<p>Supplementary figures to Effect of bisphosphonates on vertebral fractures in HIV infected males: 7-years longitudinal study</p>
A Machine Learning-Based Method for Classifying Well Test Responses in Naturally Fractured Reservoirs
<p>Complete dataset (raw data), processing codes (MATLAB v2020b) and numerical simulation model (Petrel v2017, ECLIPSE) for clustering of pressure derivatives in Naturally Fractured Reservoirs</p> <p> </p> <p> </p>
Stress-induced flow channelization in three-dimensional fractured layered rocks
<p>The manuscript data for the stress-induced flow channelization in three-dimensional fractured layered rocks.</p>
Osteolitic vs Osteoblastic metastatic lesion: Computational modeling of fracture risk in the human vertebra after screws fixation procedure
<p>Metastatic lesions compromise the mechanical integrity of vertebrae, increasing the fracture risk. Screwfixation is usually performed to guarantee spinal stability and prevent dramatic fracture events. Accordingly, predicting the overall mechanical response in such conditions is critical to planning and optimizing the surgical treatment. This work proposes an image-basedfinite element computational approach describing the mechanical behavior of a patient-specific instrumented metastatic vertebra by assessing the effect of lesion size, location, type and shape on the fracture load and fracture patterns under physiological loading conditions. A specific constitutive model for the metastasis is integrated to account for the effect of the diseased tissue on the bone material properties. Computational results demonstrate that size, location, and type of metastasis significantly affect the overall vertebral mechanical response, and suggest better account these parameters in estimating the fracture risk. Combining multiple osteolytic lesions to account for irregular shape of the overall metastatic tissue has a not significant effect on fracture load of vertebra macroscopically. In addition, the combination of loading mode and metastasis type is shown for the first time as a critical modeling parameter in determining the fracture risk. The proposed computational approach moves towards defining a clinically integrated tool to improve the management of metastatic vertebrae and quantitatively evaluate fracture risk.</p>
Dataset for "Data-Mining of In-Situ TEM Experiments: Towards Understanding Nanoscale Fracture"
<p>Dataset accompanying the publication "Data-Mining of In-Situ TEM Experiments: Towards Understanding Nanoscale Fracture"</p>
Experimental data set for hydraulic fracture interactions with discontinuities study
<p>Experimental data included in hydraulic fracture interaction with discontinuities study. The original images in high resolution and the pressure and cumulative acoustic emission activities recordings. </p>
Advective-diffusive transport in fractured media
<p>Input and output files for DFN simulations in DFN.Lab</p> <p>Scritps for reading the results </p> <p>Scritps for figuures representing the theoretical behavior. </p>
Fracture toughness and hardness of in-office 3D-printed ceramic brackets
<p>Dataset for all analyses</p>
Data for: Ascent rates of 3D fractures driven by a finite batch of buoyant fluid
<p>Ascent rates of finite fluid batches:</p> <p>Contains the numerical experiments using https://pyfrac.epfl.ch/</p> <p>Also contains movies and text data from selected analog gelatin experiments of <em>Smittarello, D. 2019 Propagation des intrusions basaltiques. PhD thesis, Université Grenoble Alpes.</em></p> <p>See ReadMe file for more information. </p> <p>Files zipped using 7zip.</p>
Efficacy of switching from teriparatide to zoledronic acid or denosumab on bone mineral density and bone markers in patients with severe fractured osteoporosis: a real-life study
<p><strong>Abstract</strong></p> <p>Purpose: Osteoporosis is characterized by a loss of bone mass, increased bone fragility and susceptibility to fracture. Sequential treatment with bisphosphonates or denosumab (Dmab) after teriparatide (TPT) discontinuation may represent a valid treatment option, but the optimal sequential treatment strategy is unknown.</p> <p>Methods: This retrospective study enrolled 56 osteopenic/osteoporotic patients with fragility fractures who received 24 months of treatment with TPT followed by 24 months of treatment with zoledronic acid (ZOL) (TPT+ZOL) or Dmab (TPT+Dmab). Clinical features, incident fractures, bone mineral density (BMD) measurements, and bone marker profiles were characterized. Ordinary one-way ANOVA adjusted for multiple testing analyzed the difference between median T-scores at baseline, after 24 months of TPT, and after 2 doses of ZOL or at least 3 doses of Dmab when variables failed the normality test.</p> <p>Results: Twenty-three patients received TPT+ZOL (19 females, 4 males; median [IR] age, 74.3 [66.9, 78.6] years) and 33 patients received TPT+Dmab (31 females, 2 males; mean±SD age, 66.6±11.3 years). Mean lumbar and hip T-scores were significantly higher after sequential treatment with both TPT+ZOL and TPT+Dmab (all p<0.05 vs baseline). In particular, the mean lumbar T-score increased in about 80% of patients by 8.5±58% after ZOL, while after Dmab, the mean lumbar T-score was -9.6±36%. Mean±SD femur neck and hip T-scores increased by 12±13% and 9±31%, respectively, after treatment with ZOL, while the change in femur neck and hip T-scores after Dmab were 5±41% and 27±36%, respectively, No significant between-group differences were identified. Fragility fractures occurred in 3 (13%) patients treated with TPT+ZOL and in 5 (15%) patients treated with TPT+Dmab.</p> <p>Conclusion: Sequential therapy with TPT+ZOL increased bone mineralization at the lumbar level and stabilized bone mineralization at the femoral level. Both ZOL and Dmab are effective sequential treatments after TPT.</p>
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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.