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2,322 results for “Circulation”
Data from: Going with the flow: the role of ocean circulation in global marine ecosystems under a changing climate
Ocean warming, acidification, deoxygenation and reduced productivity are widely considered to be the major stressors to ocean ecosystems induced by emissions of CO2. However, an overlooked stressor is the change in ocean circulation in response to climate change. Strong changes in the intensity and position of the western boundary currents have already been observed, and the consequences of such changes for ecosystems are beginning to emerge. In this study, we address climatically induced changes in ocean circulation on a global scale but relevant to propagule dispersal for species inhabiting global shelf ecosystems, using a high resolution global ocean model run under the IPCC RCP 8.5 scenario. The ¼ degree model resolution allows improved regional realism of the ocean circulation beyond that of available CMIP5-class models. We use a Lagrangian approach forced by modelled ocean circulation to simulate the circulation pathways that disperse planktonic life stages. Based on trajectory backtracking, we identify present-day coastal retention, dominant flow and dispersal range for coastal regions at the global scale. Projecting into the future, we identify areas of the strongest projected circulation change and present regional examples with the most significant modifications in their dominant pathways. Climatically-induced changes in ocean circulation should be considered as an additional stressor of marine ecosystems in a similar way to ocean warming or acidification.
Figure Data for Oka et al. (2021) "Glacial mode shift of the Atlantic meridional overturning circulation by warming over the Southern Ocean"
<p>Figure Data for Oka et al. (2021) "Glacial mode shift of the Atlantic meridional overturning circulation by warming over the Southern Ocean" </p>
Data for the figures of Ando et al. entitled "Hysteresis of the glacial Atlantic Meridional Overturning Circulation controlled by thermal feedbacks."
<p>Data for the figures of Ando et al. entitled "Hysteresis of the glacial Atlantic Meridional Overturning Circulation controlled by thermal feedbacks."</p>
The Role of Atlantic Basin Geometry in Meridional Overturning Circulation
<p>Climatology data for manuscript: "The Role of Atlantic Basin Geometry in Meridional Overturning Circulation"</p> <p>We present idealized simulations to explore how the shape of eastern and western continental boundaries along the Atlantic influence the Atlantic Meridional Overturning Circulation (AMOC). We use a state-of-the art ocean—sea-ice model (MOM6 and SIS2) with idealized, zonally-symmetric surface forcing and a range of idealized continental configurations with a large, Pacific-like basin and a small, Atlantic-like basin. We perform simulations with five coastline geometries along the Atlantic-like basin that range from coastlines that are straight to coastlines shaped like the coasts of the American and African continents.</p>
The landscape of circulating platelet aggregates in COVID-19
<p>A characteristic clinical feature of COVID-19 is the frequent incidence of microvascular thrombosis. In fact, COVID-19 autopsy reports have shown widespread thrombotic microangiopathy characterized by extensive diffuse microthrombi within peripheral capillaries and arterioles in lungs, hearts, and other organs, resulting in multiorgan failure. However, the underlying process of COVID-19-associated microvascular thrombosis remains elusive due to the lack of tools to statistically examine platelet aggregation (i.e., the initiation of microthrombus formation) in detail. Here we report the landscape of circulating platelet aggregates in COVID-19 obtained by massive single-cell image-based profiling and temporal monitoring of the blood of COVID-19 patients (n = 110). Surprisingly, our analysis of the big image data shows the anomalous presence of excessive platelet aggregates in nearly 90% of all COVID-19 patients. Furthermore, results indicate strong links between the concentration of platelet aggregates and the severity, mortality, respiratory condition, and vascular endothelial dysfunction level of COVID-19 patients. </p>
Supplementary materials: Indirect effects of trophic interactions govern carbon circulation in two beech forest soil ecosystems
<p>1. Forests soils harbour a vast array of organisms that govern the processing of organic matter. Through their trophic interactions, they give rise to carbon flows that sustain soil ecosystem functioning. Understanding how soil food webs shape carbon flows may enhance our knowledge about the role of biodiversity on soil processes.</p> <p>2. In this work, we assembled trophic networks representing soil food webs of two beech forests during spring and autumn and compiled mass-balanced models quantifying carbon flows between their components. These models were investigated using network analysis to identify the role of the components on carbon flow, cycling and functional trophic relationships. Moreover, we explored how the structure of carbon exchanges promote efficiency and stability.</p> <p>3. Results indicate the importance of indirect interactions. Most trophic groups exhibit a diffuse dependency on all the compartments for their carbon requirement although certain groups such as Collembola play the role of hubs in distributing carbon. Indirect interactions often reverse the impacts of direct trophic relationships being antagonistic to the direction of change predicted based on predator-prey interactions. The high incidence of generalist feeding habits increases the redundancy of energy channels thereby making such food webs more resilient against perturbations but at the expense of carbon transfer efficiency.</p> <p>4. Although differences can be observed across sites and periods, food web structure rather than environmental variability seems to be the main factor responsible for patterns of carbon flows in the two beech forests.</p>
Formation of the layered circulation in South China Sea with the mixing stimulated exchanging current through Luzon Strait
<p>Formation of the layered circulation in South China Sea with the mixing stimulated exchanging current through Luzon Strait</p>
Intermediary and supplemental data for publication "Heterogenous circulating miRNA changes in ME/CFS converge on a unified cluster of target genes and may be a result of modulation by latent herpesviruses: A computational analysis"
<p>Intermediary and supplemental data for publication "Heterogenous circulating miRNA changes in ME/CFS converge on a unified cluster of target genes and may be a result of modulation by latent herpesviruses: A computational analysis"</p>
Virus diversity, wildlife-livestock circulation and potential zoonotic viruses of small mammals, pangolins and zoo animals
<p>Virus diversity, wildlife-livestock circulation and potential zoonotic viruses of small mammals, pangolins and zoo animals<br> In this analysis, all relevant Electropherogram files, alignment files and tree files were shown.</p>
SCM data for "Representing the subgrid surface heterogeneity of precipitation in a general circulation model"
<p>Single Column Model output from simulations described in the paper, "Representing the subgrid surface heterogeneity of precipitation in a general circulation model," by Nathan Arnold, Randal Koster, and Atanas Trayanov. </p>
Data from: 'Potential non-linearities in the high latitude circulation and ozone response to Stratospheric Aerosol Injection'
<p>Data used in: 'Potential non-linearities in the high latitude circulation and ozone response to Stratospheric Aerosol Injection' by Bednarz et al., 2023, submitted to Geophysical Research Letters. </p>
Movie S6. Dynamics of the blood circulation in 54 hpf dock11-knockout zebrafish embryos
<p>Representative confocal time lapses of the trunk region of a 54 hours postfertilization (hpf) <em>dock11</em>‑knockout <em>fli1:GFP;gata1a:dsRed</em> double transgenic<em>. </em>Endothelial cells from the intersegmental vessels are visualized in green, while blood cells are shown in red.</p> <p>This movie corresponds to Movie S6 from Supplementary Appendix of Block et al., Systemic Inflammation and Normocytic Anemia in DOCK11 Deficiency. N Engl J Med 2023.</p>
Movie S4. Blood circulation in a 48 hpf dock11-knockout zebrafish embryo
<p>Representative time-lapse confocal microscopy movie showing the posterior region of a 48 hours postfertilization (hpf) <em>dock11</em>-knockout <em>fli1:GFP;gata1a:dsRed</em> double transgenic<em>. </em>Endothelial cells from the vasculature system are visualized in green, while blood cells are shown in red. White arrow points toward the accumulation of intravascular blood.</p> <p>This movie corresponds to Movie S4 from Supplementary Appendix of Block et al., Systemic Inflammation and Normocytic Anemia in DOCK11 Deficiency. N Engl J Med 2023.</p>
Movie S3. Blood circulation in a 48 hpf control zebrafish embryo
<p>Representative time-lapse confocal microscopy movie showing the posterior region of a 48 hours postfertilization (hpf) control <em>fli1:GFP;gata1a:dsRed</em> double transgenic<em>. </em>Endothelial cells from the vasculature system are visualized in green, while blood cells are shown in red.</p> <p>This movie corresponds to Movie S3 from Supplementary Appendix of Block et al., Systemic Inflammation and Normocytic Anemia in DOCK11 Deficiency. N Engl J Med 2023.</p>
Movie S5. Dynamics of the blood circulation in 54 hpf control zebrafish embryos
<p>Representative confocal time lapses of the trunk region of a 54 hours postfertilization (hpf) control <em>fli1:GFP;gata1a:dsRed</em> double transgenic<em>. </em>Endothelial cells from the intersegmental vessels are visualized in green, while blood cells are shown in red.</p> <p>This movie corresponds to Movie S5 from Supplementary Appendix of Block et al., Systemic Inflammation and Normocytic Anemia in DOCK11 Deficiency. N Engl J Med 2023.</p>
Impacts of extratropical North Pacific on boreal summer Arctic circulation
<p>Codes for the results shown in a manuscript titled "Impacts of North Pacific on boreal summer Arctic circulation" which is to be published at Atmospheric and Oceanic Science Letters.</p>
Bathymetric,Magnetic data and code for Coupled detachment faulting and hydrothermal circulation at 49.7°E Southwest Indian Ridge revealed by seafloor magnetism
<p>The dataset contains the Dragon Horn area bathymetric data, near-bottom magnetic survey data, and the SimPEG (V0.15.2) source code used in the forward and inversion of magnetic anomalies.</p>
Selected data analyzed in the JGR Atmosphere manuscript "Atmospheric meridional circulation between South Asia and Tibetan Plateau caused by the change of planetary boundary layer depth."
<p>1. The PBL depth dataset including the PBL type (the convective boundary layer, the neutral boundary layer, and the stable boundary layer) and the calculated the PBL depths at the 19 stations for the 2013-2015 summers.</p> <p>2. The control experiment (WRF-CTL) and the MEP experiment (WRF-MEP) simulations results including PBL depth and geopotential height at 500 hPa at 00:00 UTC, 06:00 UTC, 12:00 UTC, and 18:00 and hourly sensible and latent heat. The simulation period was 1 June to 31 August 2015 with 30 hours from 12:00 UTC (20:00 Beijing time (BJT)) each day.</p>
Selected data analyzed in the JGR Atmosphere manuscript "Atmospheric meridional circulation between South Asia and Tibetan Plateau caused by the change of planetary boundary layer depth."
<p>1. The PBL depth dataset including the PBL type (the convective boundary layer, the neutral boundary layer, and the stable boundary layer) and the calculated the PBL depths at the 19 stations for the 2013-2015 summers.</p> <p>2. The control experiment (WRF-CTL) and the MEP experiment (WRF-MEP) simulations results including PBL depth and geopotential height at 500 hPa at 00:00 UTC, 06:00 UTC, 12:00 UTC, and 18:00 and hourly sensible, latent heat and thermal radiation (net longwave radiation). The simulation period was 1 June to 31 August 2015 with 30 hours from 12:00 UTC (20:00 Beijing time (BJT)) each day.</p>
Transient Injection of Flow: How Torn and Bent Subducting Slabs Induce Unusual Mantle Circulation Patterns near a flat slab
<p>This repository provides the input (.prm) files for the paper "Transient Injection of Flow: How Torn and Bent Slabs Induce Unusual Mantle Circulation Patterns near a flat slab".</p>
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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.