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108 results for “Volume Change”
HD-SIM-RBV: a synthetic dataset with model-based simulations of blood volume changes during hemodialysis
<p>The HD-SIM-RBV dataset is a synthetic (model-based) dataset generated to enable the study of blood volume (BV) or relative blood volume (RBV) changes during hemodialysis (HD).</p> <p>The dataset includes the profiles of BV changes during a standard 4-hour HD session simulated using a lumped-parameter, physiologically-based model of the cardiovascular system and the whole-body water and solute kinetics in 5,000 virtual patients with randomly adjusted values of 90 physiological parameters.</p> <p>For each of the 90 selected parameters, a random value was drawn from a normal distribution with the mean equal to the baseline value used originally in the model (with a few exceptions) and the standard deviation (SD) assumed at the level of 10%, 20%, or 40% of the baseline value, depending on the nature of the given parameter and the likelihood of its variation in the population (for some parameters, SD was set below 10% - see Parameters.xlsx). Only values within ±2SD from the mean were accepted. </p> <p>Ultrafiltration was set randomly within ±1 L from the assigned fluid overload. All other parameters as well as dialysis settings were kept constant for all virtual patients (at the levels used in our previous work - see the references below).</p> <p> </p> <p>When using the dataset, please cite the associated conference paper:</p> <p>Pstras L, Waniewski J. A Model-Based Dataset for In-Silico Exploration of the Patterns of Relative Blood Volume Changes During Hemodialysis. 2023 IEEE EMBS Special Topic Conference on Data Science and Engineering in Healthcare, Medicine and Biology, 149-150, 2023, doi: 10.1109/IEEECONF58974.2023.10404528.</p>
Area, volume and ELA changes of West Greenland local glaciers and ice caps over the last 35 years
<p>This dataset refers to:</p> <p><em>Area, volume and ELA changes of West Greenland local glaciers and ice caps over the last 35 years</em><br><em>Securo Andrea, Del Gobbo Costanza, Citterio Michele, Machguth Horst, Marcer Marco, Korsgaard Niels J., Colucci Renato R.</em></p> <p>This study analyses the cumulative area, ice mass and Equilibrium Line Altitude changes that occurred on more than 4000 glaciers and ice caps in West Greenland (outside of the Greenland Ice Sheet) from 1985 to 2020, using remotely sensed data and including glaciers smaller than 1 km2 in the calculations.</p> <p>This dataset contains:</p> <ol> <li><strong>1_Area_1985_2020.csv</strong> - Comma Separated Value file with the following data for all Glaciers and ice caps involved in the study:<br>Area Loss from 1985 to 2020 (km2), Total Area of 1985 (km2), Relative Area Loss from 1985 to 2020 (%), Longitude, Latitude</li> <li><strong>2_Area_Loss_1985_2020.gpkg</strong> - Geopackage file contanining the same information as (1.) but including the centroids positions. EPSG 4326 WGS84</li> <li><strong>3_Volume_and_ELA_1985_2020.csv</strong> - Comma Separated Value file with the following data for all Glaciers and ice caps involved in the study: GLIMS Glacier ID, minimum elevation (m a.s.l.), mean elevation (m a.s.l.), maximum elevation (m a.s.l.), Surface elevation change 1985-Present (m), Glacier Area from RGI (km2), Ice Mass Loss (Gt), 1985 mean ice thickness from Millan and others (m), Relative volume loss from 1985 to Present (%), Longitude, Latitude, Equilibrium Line Altitude* (m)</li> <li><strong>4_Volume_and_ELA_1985_2020.gpkg</strong> - Geopackage file contanining the same information as (3.) but including the centroids positions. EPSG 4326 WGS84</li> </ol> <p>* note that not all glaciers and ice caps have ELA value for present.</p>
Fig. 1 in Trophic interactions among sympatric zooplanktivorous fish species in volume change conditions in a large, shallow, tropical lake
Fig. 1. Lake Chapala, Mexico. Numbers in bold represent the sampling sites, in italics depths contours (m).
The Effect of Dupilumab on Lung Inflammation and Related Changes in Airway Volumes Detectable by Functional Respiratory Imaging in Patients With Moderate-severe Asthma
ClinicalTrials.gov study NCT04400318. IPD Sharing: YES. Countries: 13. Publications: 2.
The Burden of Reproduction in Lizards: Changes in Respiratory Physiology Associated with Reduced Lung Volume at the Sevilleta National Wildlife Refuge (2007-2008)
Previous morphological work on lizards suggests that the volume of growing eggs may result in a significant decrease in lung volume during gravidity. Iguanid lizard lungs are located within continuous thoracic and abdominal cavities and are highly distensible. Because of their distensible nature and lack of a diaphragm, both naturally occurring and introduced structures within the abdominal and thoracic cavities (i.e. organs, food, eggs) compress them and potentially reduce available lung volume for gas exchange. During reproduction, this decrease comes at a time of increased energetic demands, due to the cost of provisioning eggs and the physical burden of transporting the extra mass before laying. This means that females must increase the oxygen/carbon dioxide exchange with effectively smaller lung capacity than when they are not reproductive. Therefore, the way species compensate for this decrease affects performance, and ultimately the survival of individuals and their offspring.
Supplementary material for "Measurement of volume change and mass transfer during serpentinisation: insights from the Oman Drilling Project" (JGR Solid Earth)
<p>The three supplementary files include one figure displaying the results of X-ray microtomography (File S1), two compilations of figures dealing with the volume change measurement (Files S2 and S3) and a table with the measured compositions in major and trace elements (Table S1).</p> <p>File S1 (Malvoisin_ds01.pdf). Result of X-ray microtomography. Olivine and Fe-brucite have a similar attenuation. The grains segmented by selecting this attenuation are displayed with a circle with a size proportional to the radius of a sphere of equivalent volume. The color of each circle depends on <em>e</em>, the aspect ratio (ratio of the length of the minimum and maximum axes of an ellipsoid fitted to each grain). The white arrow indicates the location of the main central vein. Grains near the main central vein have a lower <em>e</em> attributed to the platy habitus of Fe-brucite. The other grains are considered as olivine and used for the calculation of the extent of reaction.</p> <p>File S2 (Malvoisin_ds02.pdf). Optical photomicrographs used to calculate volume change during reaction (see main text for details about the calculation). Olivine grains (white) are surrounded by the serpentine + brucite mixture (light green to yellowish). The magnetite/clinopyroxene platelets are mapped in blue in olivine and in red in the serpentine + brucite mixture. The results of the model fitting the best the average orientation of the platelets in olivine are shown in green. The title of each photomicrograph provides the minimum and maximum estimates for volume change calculated with this model (see details about the calculation in the main text), and the size of the bottom right scale bar.</p> <p>File S3 (Malvoisin_ds03.pdf). Histograms of magnetite/clinopyroxene platelet orientation (in degree). Each histogram corresponds to a photomicrograph of File S1. The order of the histograms and the photomicrographs is the same. The orientations in the olivine grains, the serpentine + brucite mixture and for the model fitting the best the average orientation in olivine are displayed in blue, red and green, respectively. The title of the histograms provides the standard deviation of the platelet orientation in the olivine grains (STD<sub>oli</sub>), the serpentine + brucite mixture (STD<sub>ori</sub>) and calculated with the model fitting the best the orientation in olivine (STD<sub>cal</sub>).</p> <p>Table S1 (Malvoisin_ds01.xlsx). Composition in major and trace elements measured with LA-ICPMS along five profiles perpendicular to the main vein. The composition as a function of the distance to the main vein is provided. The name of the tabs indicates if the profile was acquired in spot or in continuous mode (the two modes are described in the main text).</p>
Dataset from the paper entitled "Linking Lattice Strain and Fractal Dimensions to Non-Monotonic Volume Changes in Irradiated Nuclear Graphite"
<p>Dataset from the paper entitled "Linking Lattice Strain and Fractal Dimensions to Non-Monotonic Volume Changes in Irradiated Nuclear Graphite". The dataset includes the small angle X-ray scattering measurements, the wide-angle X-ray scattering measurements, and the fitting parameters. Please see the included Readme file for more detail on the organization. </p>
Tissue Expander Breast Reconstruction Study on Breast Volume and Shape Change
ClinicalTrials.gov study NCT01222390. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Data on changes in length, width, thickness, weight and displacement volume of blue mussel (Mytilus edulis) from the start to the end of the 13 week study in 2022.
<p>This data file contains the on changes in blue mussel (<em>Mytilus edulis</em>) length, width, thickness, weight and displacement volume from the start to the end of a 13 week study in 2022. The mussels were kept in the NIVA mesocosm facility in the Oslofjord, three replicates in each of 12 basins. Half of the basins had high wave level, half had low wave level. The length of the mussels were measuerd weekly for 13 weeks. Alså the % change from one week to the next is included in the dataset. </p>
Cohort Study to Investigate the Association Between Changes in Brain Volume and Postoperative Cognitive Dysfunction
ClinicalTrials.gov study NCT02045004. IPD Sharing: UNDECIDED. Countries: 1. Publications: 31.
Evaluation of Gastric Volume and pH Changes in Gastroscopy Patients
ClinicalTrials.gov study NCT06842602. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Change in Gingival Volume and Quality of Life Due to Initial Periodontal Therapy in Smokers
ClinicalTrials.gov study NCT05719519. IPD Sharing: NO. Countries: 1. Publications: 1.
Ability of Changes in Analgesia Nociception Index to Assess the Stroke Volume Effects of a Volume Expansion of 250ml of Crystalloid in the Operating Room
ClinicalTrials.gov study NCT04223414. IPD Sharing: NO. Countries: 1. Publications: 1.
Postural Changes in Lung Volumes in Obesity
ClinicalTrials.gov study NCT02207192. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Assessment of Bone Volume Changes in Immediate Implant Placement Using Allograft Versus Xenograft in Mandibular Molars
ClinicalTrials.gov study NCT06962878. IPD Sharing: UNDECIDED. Countries: 1. Publications: 10.
Change of Gastric Fluid Volume After Oral Hydration in Fasted Objects
ClinicalTrials.gov study NCT06210880. IPD Sharing: NO. Countries: 1. Publications: 5.
Reliability of PVI Changes During Tidal Volume Challenge in ICU Patients
ClinicalTrials.gov study NCT05428423. IPD Sharing: Not stated. Countries: 1. Publications: 15.
Effect of Tidal Volume Change on Pressure-based Prediction of Fluid Responsiveness in Children
ClinicalTrials.gov study NCT03963089. IPD Sharing: NO. Countries: 1. Publications: 5.
Chronic Sleep Deprivation and Changes in Cortical and Hippocampal Volume
ClinicalTrials.gov study NCT06260280. IPD Sharing: UNDECIDED. Countries: 1. Publications: 6.
Characterization of Residual Limb Volume Changes in Transfemoral Amputees
ClinicalTrials.gov study NCT04709367. IPD Sharing: UNDECIDED. Countries: 1. Publications: 2.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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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.