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293 results for “DECOMPRESSION”
LMU Fast Decompression Experiment Data for "Standing Shock Prevents Propagation of Sparks in Supersonic Explosive Flows"
<p><strong>Background</strong></p> <p>This data is camera images and nozzle pressure gauge voltage traces from rapid decompression shots at the LMU shock tube facility.</p> <p>This data is discussed in the "Materials and Methods" section of the paper "Standing Shock Prevents Propagation of Sparks in Supersonic Explosive Flows".</p> <p>Electric sparks and explosive flows have long been associated with each other. Flowing dust particles originate charge through contact and separate based on inertia, resulting in strong electric fields supporting sparks. These sparks can cause explosions in dusty environments, especially those rich in carbon, such as coal mines and grain elevators. Recent observations of explosive events in nature and decompression experiments indicate that supersonic flows of explosions may alter the electrical discharge process. Shocks may suppress parts of the hierarchy of the discharge phenomena, such as leaders. In our decompression experiments, a shock tube ejects a flow of gas and particles into an expansion chamber. We imaged an illuminated plume from the decompression of a mixture of argon and <100 mg of diamond particles and observe sparks occurring below the sharp boundary of a condensation cloud. We also performed hydrodynamics simulations of the decompression event that provide insight into the conditions supporting the observed behavior. Simulation results agree closely with the experimentally observed Mach disk shock shape and height. This represents direct evidence that the sparks are sculpted by the outflow. The spatial and temporal scale of the sparks transmit an impression of the shock tube flow, a connection that could enable novel instrumentation to diagnose currently inaccessible supersonic granular phenomena.</p> <p><strong>Accessing Data</strong></p> <p>The prefixes of the filenames correspond to the shot dates and times listed in table S1 of the paper. </p> <p>The "_camera.zip" files contains tiff images of the camera frames. The ".ixc" file in each zip lists camera settings in plain text.</p> <p>The ".dat" file contains the voltage measurement of the nozzle pressure gauge. Row 1 is the header, row 2 is the time in seconds, and row 3 is the voltage of the pressure gauge in Volts. The peak pressure in the header can be used to relate the voltage to pressure.</p>
Fig. 3 in Decompression syndrome and diving behavior in Odontochelys, the first turtle
Fig. 3. Enface view of right proximal humeral articular surface of Odontochelys semitestacea Li, Wu, Rieppel, Wang, and Zhao, 2008 from the Lower Carnian (Upper Triassic) Wayao Member of the Falang Formation; Guanling, Guizhou Province, southwest China (IVPP V 13240). Irregular defect (arrow) is characteristic for the avascular necrosis found with decompression syndrome.
Fig. 2 in Decompression syndrome and diving behavior in Odontochelys, the first turtle
Fig. 2. Enface view of left proximal humeral articular surface of Odontochelys semitestacea Li, Wu, Rieppel, Wang, and Zhao, 2008 from the Lower Carnian (Upper Triassic) Wayao Member of the Falang Formation; Guanling, Guizhou Province, southwest China (IVPP V 13240). Irregular defect (arrow) is characteristic for the avascular necrosis found with decompression syndrome.
Fig. 1 in Decompression syndrome and diving behavior in Odontochelys, the first turtle
Fig. 1. Ventral view of anterior body of Odontochelys semitestacea Li, Wu, Rieppel, Wang, and Zhao, 2008 from the Lower Carnian (Upper Triassic) Wayao Member of the Falang Formation; Guanling, Guizhou Province, southwest China (IVPP V 13240). Defects are present on proximal humeral articular surfaces.
When the practice does not meet the theory: results from an Italian survey on the clini-cal and pathway management of inpatients with decompressive craniectomy or cranioplasty admitted to rehabilitation
<p>Cranioplasty (CP) is supposed to improve the functional outcome of severe acquired brain injury (sABI) patients with decompressive craniectomy (DC). However, ongoing controversies exist regarding its indications, optimum materials, timing, complications, and relationships with hydrocephalus (HC). For these reasons, an International Consensus Conference (ICC) on CP in traumatic brain injury (TBI) was held in June 2018 to issue some recommendations.</p> <p>AIM: To investigate cross-sectionally before the ICC the prevalence of DC/CP in sABI inpatients admitted to neurorehabilitation units in Italy; to assess the perception of Italian clinicians working in the sABI neurorehabilitation settings on the management of inpatients with DC/CP during their rehabilitation stay.</p> <p>DESIGN: Cross-sectional.</p> <p>SETTING AND POPULATION: Physiatrists or neurologists working in 38 Italian rehabilitation centers involved in the care of sABI, giving a pooled sample of 599 inpatients.</p> <p>METHODS: Survey questionnaire consisting of 21 closed-ended questions with multiple-choice answers. Sixteen questions regarded the respondents' opinions and experiences regarding the clinical and management aspects of patients. Survey data were collected via e-mail between April and May 2018.</p>
Small ZIP file for decompression tests/demos
<p>This is a small test file containing the GitHub SVG logo and the MD5 checksum.</p> <p>This is used to demo CMake download, verify and extract in https://github.com/scivision/cmake-utils</p>
Quality of life after decompressive craniectomy
<p><strong>Background: </strong>Decompressive craniectomy (DC) is used to relieve refractory intracranial hypertension. It increases survival but associates high disability. This study aims to assess QoL in patients undergoing DC due to life-threatening intracranial hypertension.</p> <p><strong>Methods: </strong>All patients over 18 years old who underwent a supratentorial DC at our department due to intracranial hypertension of any etiology, from January 2015 to December 2021, were retrospectively selected. Patients with incomplete follow-up (under one year from the event or those who died) or who declined to participate in the study were excluded. QoL was assessed with SF-36 and CAVIDACE scales. Correlation between clinical and therapeutic variables and SF-36 subscales was studied with Spearman’s correlation and the Mann-Whitney U tests.</p>
Minimally Invasive Decompression and Fusion Versus Open for Degenerative Lumbar Stenosis
ClinicalTrials.gov study NCT04594980. IPD Sharing: YES. Countries: 1. Publications: 1.
Posterior Fossa Decompression With or Without Duraplasty for Chiari Type I Malformation With Syringomyelia
ClinicalTrials.gov study NCT02669836. IPD Sharing: Not stated. Countries: 1. Publications: 38.
Hemodynamic Effects of Standard Cardiopulmonary Resuscitation (CPR), Active Compression Decompression CPR With an Inspiratory Impedance Device, and Standard CPR With an Intrathoracic Pressure Regulato
ClinicalTrials.gov study NCT01325870. IPD Sharing: Not stated. Countries: 1. Publications: 30.
MiDAS I (Mild® Decompression Alternative to Open Surgery): Vertos Mild Patient Evaluation Study
ClinicalTrials.gov study NCT00956631. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Stoma Tube Decompression and Postoperative Ileus After Major Colorectal Surgery
ClinicalTrials.gov study NCT01911793. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Indirect vs. Direct Decompression for Treatment of Central Stenosis: RCT
ClinicalTrials.gov study NCT04708977. IPD Sharing: NO. Countries: 1. Publications: 19.
ResQ Trial: Impact of an ITD and Active Compression Decompression CPR on Survival From Out-of-Hospital Cardiac Arrest
ClinicalTrials.gov study NCT00189423. IPD Sharing: Not stated. Countries: 1. Publications: 21.
Study of Epidural Steroid Injection (ESI) Versus Minimally Invasive Lumbar Decompression (Mild®) in Patients With Symptomatic Lumbar Central Canal Stenosis
ClinicalTrials.gov study NCT00995371. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Clinical Trial Comparing Decompression With and Without Coflex™ Interlaminar Technology Treating Lumbar Spinal Stenosis
ClinicalTrials.gov study NCT01316211. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Necessity of Fusion Following Decompression Surgery in Patients With Single-level Lumbar Stenosis
ClinicalTrials.gov study NCT05273879. IPD Sharing: YES. Countries: 1. Publications: 1.
Acute effects on the human peripheral blood transcriptome of decompression sickness secondary to scuba diving: Supplementary datasets
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STL Fast Decompression Experiment Data for "Standing Shock Prevents Propagation of Sparks in Supersonic Explosive Flows"
<p><strong>Background</strong></p> <p>This data is camera images and pressure gauge and RF antenna voltage traces from rapid decompression shots at the STL shock tube facility. </p> <p>This data is used in figures 1, 2, 3, and 4 and corresponds to the STL shots listed in table S1 of the paper "Standing Shock Prevents Propagation of Sparks in Supersonic Explosive Flows".</p> <p>Electric sparks and explosive flows have long been associated with each other. Flowing dust particles originate charge through contact and separate based on inertia, resulting in strong electric fields supporting sparks. These sparks can cause explosions in dusty environments, especially those rich in carbon, such as coal mines and grain elevators. Recent observations of explosive events in nature and decompression experiments indicate that supersonic flows of explosions may alter the electrical discharge process. Shocks may suppress parts of the hierarchy of the discharge phenomena, such as leaders. In our decompression experiments, a shock tube ejects a flow of gas and particles into an expansion chamber. We imaged an illuminated plume from the decompression of a mixture of argon and <100 mg of diamond particles and observe sparks occurring below the sharp boundary of a condensation cloud. We also performed hydrodynamics simulations of the decompression event that provide insight into the conditions supporting the observed behavior. Simulation results agree closely with the experimentally observed Mach disk shock shape and height. This represents direct evidence that the sparks are sculpted by the outflow. The spatial and temporal scale of the sparks transmit an impression of the shock tube flow, a connection that could enable novel instrumentation to diagnose currently inaccessible supersonic granular phenomena.</p> <p><strong>Accessing Data</strong></p> <p>The prefixes of the filenames correspond to the shot dates and approximate times listed in table S1 of the paper. </p> <p>The "_SA4.zip" and "_SA3.zip" files contains tiff images of the SA4 and SA3 camera frames, respectively. The ".cih" file in each zip lists camera settings in plain text.</p> <p>The "OscilloscopeData.zip" contains files with prefixes corresponding to the shot dates and times listed in table and the diagnostic name. Files ending in ".csv" contain raw data and ".pdf" contain plots of the respective data. For pressure data, 1 V = 100 psi.</p>
raw data - Effect of the decompression only compared to decompression with on lumbar degenerative spondylolisthesis: A meta-analysis
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