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488 results for “Rupture”
Intermolecular hydrogen bond ruptured by graphite with different lamellar number
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Data from: A geology and geodesy based model of dynamic earthquake rupture on the Rodgers Creek-Hayward-Calaveras fault system, California
<p>The Hayward fault in California's San Francisco Bay area produces large earthquakes, with the last occurring in 1868. We examine how physics-based dynamic rupture modeling can be used to numerically simulate large earthquakes on not only the Hayward fault, but also its connected companions to the north and south, the Rodgers Creek and Calaveras faults. Equipped with a wealth of images of this fault system, including those of its 3D geology and 3D geometry, in addition to inferences about its interseismic creep rate pattern and rock-friction behavior, we use a finite-element computer code to perform 3D dynamic earthquake rupture simulations. We find that the rock properties affect the locations and amount of slip produced in our simulated large earthquakes. Crucial factors that control rupture behavior in our modeling are the earthquake nucleation locations, the fault geometry, and the data that reveal where the fault system is creeping or locked. Our findings suggest that large Rodgers Creek-Hayward-Calaveras-Northern Calaveras (RC-H-C-NC) fault-system earthquakes may result from dynamic rupture that starts in a locked part of the fault system, but is then stopped by the creeping parts, leading to high magnitude-6 earthquakes; or, from dynamic rupture that starts in a locked part of the fault system, then cascades through some of the creeping parts, leading to magnitude-7 earthquakes.</p>
Difference in rupture risk between familial and sporadic intracranial aneurysms: an individual patient data meta-analysis
<p><b>Objective:</b> We combined <span>individual patient data (IPD) from prospective cohorts of patients with </span>unruptured intracranial aneurysms (UIA) to assess to what extent patients with familial UIA have a higher rupture risk than those with sporadic UIA.<b> </b></p> <p><b>Methods:</b> For this IPD meta-analysis we performed an Embase and Pubmed search for studies published up to December 1, 2020. We included studies that 1) had a prospective study design; 2) included 50 or more patients with UIA; 3) studied the natural course of UIA and risk factors for aneurysm rupture including family history for aneurysmal subarachnoid haemorrhage and UIA; and 4) had aneurysm rupture as an outcome. Cohorts with available IPD were included. All studies included patients with newly diagnosed UIA visiting one of the study centers. The primary outcome was aneurysmal rupture. Patients with polycystic kidney disease and moyamoya disease were excluded. We compared rupture rates of familial versus sporadic UIA using a Cox proportional hazard regression model adjusted for the PHASES score and smoking. We performed two analyses: 1. only studies defining first-degree relatives as parents, children, and siblings and 2. all studies, thus both including and excluding siblings as first-degree relatives.</p> <p><b>Results:</b> We pooled IPD from eight cohorts with a low and moderate risk of bias. First-degree relatives were defined as parents, siblings and children in six cohorts (29% Dutch, 55% Finnish, 15% Japanese), totalling 2,297 patients (17% familial, 399 patients) with 3,089 UIA and 7,301 person-years follow-up. Rupture occurred in 10 familial patients (rupture rate: 0·89%/person-year; 95% CI:0·45-1·59) and 41 sporadic patients (0·66%/person-year; 95% CI:0·48-0·89); adjusted HR for familial patients 2·56 (95% CI: 1·18–5·56). After adding also the two cohorts excluding siblings as first-degree relatives resulting in 9,511 patients the adjusted HR was 1·44 (95% CI: 0·86–2·40).</p> <p><b>Conclusion:</b> The risk of rupture of UIA is two and a half times higher, with a range from a 1.2 to 5 times higher risk, in familial than in sporadic UIA. When assessing the risk of rupture in UIA, family history should be taken into account.</p>
Rupture pattern exposed by trenches on western and eastern branches of the Xiaojiang Fault zone
<p>Datas online are directly used in the research. </p>
Experimental observations about rupture nucleation process
<p>Dataset of experiments carried out in order to observe the rupture nucleation phase with heterogeneous interface. The is the strain gage data for each experiment and the videogram of each event in .mat format file.</p>
The 2023 Mw 6.0 Jishishan Earthquake: A Slow Unilateral Rupture on a Blind Thrust Fault Revealed by High-Precision Earthquake Detection, Location, and Dynamic modeling
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3D cerebral angiography showing a ruptured lateral spinal artery aneurysm
<p><span><strong>Supplementary video 1.</strong> 3D cerebral angiography showing a ruptured lateral spinal artery aneurysm</span></p>
Surface rupture data from 2009 Karonga Earthquakes, Malawi
<p>I do not take any credit for the data compiled here. All surface rupture data is taken from: Macheyeki, A. S., Mdala, H., Chapola, L. S., Manhiça, V. J., Chisambi, J., Feitio, P., et al. (2015). Active fault mapping in Karonga-Malawi after the December 19, 2009 Ms 6.2 seismic event. <em>Journal of African Earth Sciences</em>, <em>102</em>, 233–246. https://doi.org/10.1016/j.jafrearsci.2014.10.010</p> <p>Data on the earthquake focal mechanisms and geodesy is taken from: Biggs, J., Nissen, E., Craig, T., Jackson, J., & Robinson, D. P. (2010). Breaking up the hanging wall of a rift‐border fault: The 2009 Karonga earthquakes, Malawi. <em>Geophysical Research Letters</em>, <em>37</em>(11).</p>
Dynamic earthquake rupture simulations to investigate updip rupture of CSZ
<p>Dynamic earthquake rupture simulations to investigate updip rupture of CSZ dataset</p>
The 6 February 2023 M7.8 & M7.6 earthquake ruptures mapped with InSAR
<p><strong>Data Supporting Text</strong></p> <p>We used C-band SAR (Sentinel-1) data in order to extract information about the ground displacements that occurred due to the M<sub>w</sub>=7.8 earthquake and M<sub>w</sub>=7.6 earthquake in southeast Turkey (Türkiye). We retrieved the satellite data from the Alaska Satellite facility and from the Copernicus Hub of ESA. We used differential SAR (DInSAR) and the sub-pixel correlation methods to retrieve the surface motions in LOS direction and in azimuth (along satellite track) direction. We processed the SAR images using the (ISCE) v2 software and we applied pixel offset tracking through the cross correlation of the amplitude of the primary (before the earthquake) and the secondary (after the earthquake) SLC images. The pixel offset method gave us the capability to map the surface rupture extent of the strike-slip fault segments along the East Anatolian Fault Zone (EAFZ) and the Sürgü fault (SF). Also, we identified the splay fault known as Nurdağı-Pazarcık fault (NPF; Melgar et al. 2023) where the rupture process began and a second splay fault in the area of Adiyaman near the main trace of EAFZ. We mapped the total rupture length of the EAFZ which is ~ 400 km. We suggest that the maximum displacement was ~ 7 m in line of sight (LOS) direction (central area of EAFZ and SF). Also, the maximum displacement of the NPF was found ~ 1 m. It is necessary to clarify that the total displacement field occurred by the combined motion of the two mainshocks, as well as, possibly by some large-magnitude aftershocks.</p> <p><strong>Acknowledgments </strong></p> <p>This research was supported by the Hellenic Foundation for Research and Innovation (HFRI) under the 3rd Call for HFRI PhD Fellowships (Fellowship Number: 05176).</p> <p><strong>References</strong></p> <p>Melgar, D., Taymaz, T., Ganas, A., Crowell, B., Öcalan, T., Kahraman, M., Tsironi, V., Yolsal-Çevikbilen, S., Valkaniotis, S., Irmak, T. S., Eken, T., Erman, C., Özkan, B., Dogan, A. H., & Altuntaş, C. 2023. Sub- and super-shear ruptures during the 2023 Mw 7.8 and Mw 7.6 earthquake doublet in SE Türkiye. Seismica, 2(3). <a href="https://doi.org/10.26443/seismica.v2i3.387">https://doi.org/10.26443/seismica.v2i3.387</a></p>
Preparatory Process in Advance of Runaway Fault Rupture through Fluid Injection observed in Laboratory Experiments using a Large Specimen of Sub-meter scale
<p>Fault slip is initiated by locally applied fluid pressure, and it can expand unstably over a wide area causing elastic waves having magnitudes that induce felt or destructive earthquakes. Thus, it is important to examine the unstable expansion of initial slips. However, it is hard to reproduce the process by general setup of laboratory experiment such as triaxial loading tests on cylindrical specimens with inclined faults. In this study, we prepared a cubic specimen of sub-meter scale, which was separated into two triangular prisms by a model fault. The specimen was subjected to bi-axial compressions with different magnitudes. A 2D array of strain gauges was embedded beneath the fault plane to measure the changes in shear strain with the fault slip driven by fluid injection. Based on the experimental results, we discussed the features of fault slips that lead to injection-induced earthquake. The dataset obtained by the experiments were presented in the current data repository.</p>
Supplementary materials for: Variable slip mode in the past 3300 years on the fault ruptured in the 2012 M 5.6 Pernik slow earthquake in Bulgaria
<p>Supplementary materials for the paper<br> Variable slip mode in the past 3300 years on the fault ruptured in the 2012 M 5.6 Pernik slow earthquake in Bulgaria<br> submitted to Natural Hazards.</p> <p>The Supplementary materials contain high-resolution photomosaics of the trench excavated on the Meshtitsa fault, a X-ray diffractogram, locations of the ground cracks observed after the 2012 Pernik earthquake in a Keyhole Markup Language (KML) file format, and resistivity data collected across the Meshtitsa fault scarp in the format used by the Boundless Electrical Resistivity Tomography (BERT) software.</p>
Secondary Rupture of Aortic Aneurysm Post EVAR
ClinicalTrials.gov study NCT04507334. IPD Sharing: UNDECIDED. Countries: 0. Publications: 7.
Evaluation of Predictors of Aortic Aneurysm Growth and Rupture
ClinicalTrials.gov study NCT02022436. IPD Sharing: NO. Countries: 1. Publications: 0.
Progesterone for the Management of Preterm, Premature Rupture of the Membranes: A Randomized Controlled Trial.
ClinicalTrials.gov study NCT01050647. IPD Sharing: NO. Countries: 1. Publications: 0.
Cross Bracing Protocol Versus Surgery for Acute Anterior Cruciate Ligament Rupture
ClinicalTrials.gov study NCT06956339. IPD Sharing: YES. Countries: 1. Publications: 0.
Popliteal Nerve Block for Acute Achilles Tendon Rupture Repair Surgery
ClinicalTrials.gov study NCT06886815. IPD Sharing: NO. Countries: 1. Publications: 0.
Prospective Study on Artelon® Tissue Reinforcement in Repair of Chronic Ruptures and Re-ruptures of the Achilles Tendon
ClinicalTrials.gov study NCT01237613. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Could Conservative Treatment Become the New Gold Standard in Achilles Tendon Ruptures?
ClinicalTrials.gov study NCT07312097. IPD Sharing: NO. Countries: 1. Publications: 0.
Magnesium Sulphate in Premature Rupture of Membranes
ClinicalTrials.gov study NCT05134688. IPD Sharing: Not stated. Countries: 0. Publications: 7.
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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.