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89 results for “flow pattern”
Effects of Treatment With High Flow Nasal Cannulas on Respiratory Pattern and Work of Breathing Among Patients.
ClinicalTrials.gov study NCT02494154. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A Prospective Evaluation of Iodinated Contrast Flow Patterns in Caudal Epidurography With Intentional Lateral Caudal Approach
ClinicalTrials.gov study NCT01136018. IPD Sharing: Not stated. Countries: 1. Publications: 0.
SMA Flow Patterns in Neonatal Transfusion
ClinicalTrials.gov study NCT02347475. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Epidural Contrast Flow Patterns of TESI Using the Inferior-Anterior Position as the Final Needle Tip Position.
ClinicalTrials.gov study NCT01836770. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Data from: Small-scale patterns in snowmelt timing affect gene flow and the distribution of genetic diversity in the alpine dwarf shrub Salix herbacea
Open the record for dataset details and reuse information.
Data from: Transitions in the flow patterns and aerodynamic characteristics of the flow around staggered rows of cylinders
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Dataset related to the article "Outcomes of Transcatheter Aortic Valve Replacement Patients With Different Transvalvular Flow-gradient Patterns"
<p>This record contains raw data related to the article "Outcomes of Transcatheter Aortic Valve Replacement Patients With Different Transvalvular Flow-gradient Patterns".</p><p>Low-flow low-gradient (LF-LG) aortic stenosis (AS) may occur with preserved or depressed left ventricular ejection fraction (LVEF). Both situations represent the most challenging subset of patients to manage and generally have a poor prognosis. Few and controversial data exist on the outcomes of these patients compared to normal-flow high-gradient (NF-HG) AS following transcatheter aortic valve replacement (TAVR). We sought to characterize different transvalvular flow-gradient patterns and to examine their prognostic value after TAVR. We enrolled 1208 patients with severe AS and categorized as follow: 976 patients NF-HG (mean aortic pressure gradient, MPG≥40mmHg), 107 paradoxical cLF-LG (pLF-LG, MPG<40mmHg, LVEF≥50%, stroke volume index, SVi<35mL/m2), and 125 cLF-LG (MPG<40mmHg, LVEF<50%, SVi<35mL/m2). When compared with NF-HG and pLF-LG, cLF-LG had a worse symptomatic status (NYHA III-IV 86% vs 62% and 67%, p<0.001), a higher prevalence of eccentric hypertrophy and a higher level of LV global afterload reflected by a higher valvuloarterial impedance. Valvular function after TAVR was excellent over time in all patients. While 30-day mortality (p=0.911) did not differ significantly among groups, cLF-LG had a lower 5-year survival rate (LF-LG 50% vs pLF-LG 62% and NF-HG 68%, p<0.05). cLF-LG was associated with a hazard ratio for mortality of 2.41 (95% CI: 1.65-3.52, p<0.001). In conclusion, TAVR is an effective procedure regardless of transvalvular flow-gradient patterns. However, special care should be given to characterized hemodynamic of AS, as patients with pLF-LG had similar survival rates than patients with NF-HG, whereas cLF-LG is associated with a 2-fold increased risk of mortality at 5-year follow-up.</p>
Effects of different grass distribution patterns and coverage combinations on overland flow resistance mechanisms
<p>To clarify the relationship between grass cover and water flow resistance, laboratory-simulated rainfall experiments were conducted. Five rainfall intensities and three degrees of slope were applied to six degrees of grass cover and six distribution patterns to elucidate the response of overland resistance to the experimental design factors and hydrodynamic parameters and to establish a predictive model. The results indicated that as grass coverage increases, the resistance coefficient also increases; however, with increases in the rainfall intensity and slope, the resistance coefficient decreases, with no apparent critical slope or rainfall intensity. Overland resistance was higher for the horizontal vegetation pattern than the vertical pattern. The flow Reynolds and Froude numbers were negatively correlated with the resistance coefficient. The water flow path index was useful for characterizing overland resistance, reflecting the influence of different grass cover types, and was positively correlated with the resistance coefficient. Based on a dimensional analysis and the π theorem, a model of overland flow resistance was developed. This model effectively predicted overland resistance and quantified the contribution of each factor to the resistance coefficient. The contributions of the slope, rainfall Reynolds number, flow Reynolds number, Froude number, and water flow path index to overland resistance were 12.78%, 6.02%, 34 9.77%, 15.04%, and 56.39%, respectively, with grass cover playing a key role. Simulated rainfall experiments with different degrees of grass coverage and distribution patterns revealed the dynamic mechanisms of overland hydraulic erosion.</p>
Changes of Dorsalis Pedis Artery Flow Pattern After Caudal Block in Children: Observational Study Using a Duplex Sonography
ClinicalTrials.gov study NCT01107873. IPD Sharing: Not stated. Countries: 0. Publications: 0.
ScienceDex guides
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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.