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1,188 results for “DELTA”
DELTA Trial: Does Embolization With Larger Coils Lead to Better Treatment of Aneurysms Trial
ClinicalTrials.gov study NCT01943591. IPD Sharing: Not stated. Countries: 2. Publications: 1.
Changes in Exhaled 13CO2/12CO2 Breath Delta Value as an Early Indicator of Infection in ICU Patients
ClinicalTrials.gov study NCT02327130. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Hydrological connectivity influences the aquatic metacommunity structure of an Arctic delta floodplain
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Data from: Interaction between plants through litter input in mangrove succession in the Red River Delta
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Results and analysis script from a discrete choice experiment assessing public preferences for rewilding in the Oder Delta
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Data from: Developing and applying a macroinvertebrate‐based multimetric index for urban rivers in the Niger Delta, Nigeria
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Landcover map for the central region of the Yukon-Kuskokwim Delta, Alaska
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Maps of predicted carbon dioxide and methane fluxes from waterbodies in the Yukon-Kuskokwim Delta, Alaska
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Sea turtle relative abundance in nearshore waters adjacent to the Mississippi River delta, Gulf of Mexico, United States
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Data for: Immunogenicity of SARS-CoV-2 spike antigens derived from Beta & Delta variants of concern
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Sacramento-San Joaquin Delta Socioecological Monitoring
This dataset covers observations of human activities and traces collected during monitoring runs to and on Ecorestore project sites. The dataset provides snapshots of activity at the point and time of monitoring, which occurred during daylight hours on weekdays. Locations are approximate as many observations were recorded by reach (between launches and destinations). The goal of the monitoring project was to assemble a composite and comparative picture of human use and activities in the Sacramento-San Joaquin, based on the following typologies: Waterways, Tracts (reclaimed; Farmed, Wildlife-friendly farmed, Subsidence reversal, Managed marsh/duck club (Suisun Marsh, Yolo Bypass), Other), Flooded tracts (Franks Tract, Big Break), Restoration (Tidal wetlands, Floodplain/levee setback/breaching). This dataset was created as part of the experimental prototyping of a socioecological monitoring protocol. This protocol was developed in collaboration with the CDFW fish restoration program to enable the collection of human use and activity data in and around Ecorestore project sites. The human use data was intended to inform understanding of how restoration affected human uses and activities. The idea was to collect data before, during, and after restoration, which would have enabled a modified Before-After-Control-Impact (BACI) test. Not enough data was collected to effectively conduct this test. Geographic coordinates correspond with an approximate location of monitoring sites and rivers reaches within which observations were recorded.
Delta Smelt Formalin Fixation and Preservation Effects on Fish Weight and Length
Natural history museum specimen are invaluable for a variety of conservation and ecological applications. Fishes are commonly preserved in formalin; however, formalin preservation is associated with reduced fish length and increased weight, but the magnitude and timing of these changes may vary among species. Unaccounted for preservation-driven shifts in fish length and weight may have drastic effects on any conservation or ecological conclusions drawn from specimen preserved for various durations as well as when compared to fresh, unpreserved specimen. The purpose of this study was to test whether formalin fixation and preservation affects endangered Delta Smelt, Hypomesus transpacificus, lengths and weights with implications for the use of data collected on preserved and fresh specimen. Fresh Delta Smelt were lengthed and weighted, then fixed and preserved in 10% buffered formalin. Repeated measures of specimen length and weight were recorded weekly for 4 weeks, fortnightly from preservation week 4 through preservation week 24, and then approximately annually through 6 total years of preservation.
15N isotope, total N and delta 15N from June aboveground shoot tissues:e141: BioCON : Biodiversity, Elevated CO2, and N Enrichment
BioCON (Biodiversity, CO2, and Nitrogen) is an ecological experiment started in 1997 at the University of Minnesota's Cedar Creek Ecosystem Science Reserve. BioCON's goal is to explore the ways in which plant communities will respond to three environmental changes that are known to be occurring on a global scale: increasing nitrogen deposition, increasing atmospheric CO2, and decreasing biodiversity. Why Biodiversity, CO2, and Nitrogen? While there are many uncertainties in global change biology, there are also some well documented facts. Some of these are: 1. The amount of carbon dioxide (CO2) in the atmosphere is rising. Since the industrial revolution, the CO2 concentration in the atmosphere has increased from approximately 275 parts per million (ppm) to about 378 ppm today. This has been largely the result of fossil fuel burning. It is expected that CO2 levels will continue to rise, and that by the year 2050 these levels will be approximately 550 ppm. CO2 is the raw material for photosynthesis and is known to affect plant growth and development. 2. The amount of nitrogen moving through terrestrial ecosystems has increased in the recent past. While natural "background" levels of nitrogen fixation have remained constant, human additions to the system through fertilizer production and fossil fuel use have increased dramatically. Nitrogen is a key nutrient for plant growth and plays a critical role in plant community structure and composition in many environments. 3. Biodiversity levels are falling. While the research and data are not as complete as they are for CO2 and nitrogen, data indicate that the number of species globally, is being reduced. Perhaps more important for ecosystem function, diversity levels on local to regional scales have fallen due to land use change, biotic invasion and many other drivers. While much is known about how each of these factors affects ecosystem functioning, many questions remain. There is also little data on how these issues affe
Video supplement: Factors determining the natural fresh-salt groundwater distribution in deltas
<p>This presents the 3D renderings of the groundwater salinity of all the trajectories in our global sensitivity analysis of a three-dimensional, variable-density groundwater model of a synthetic delta with complex paleo-hydrological boundary conditions</p> <p>In total there are 10 trajectories, each consisting of 24 simulations. So in total there are 240 simulations. </p> <p>The videos show the development of the fresh-salt groundwater distribution over 45 ka for trajectories 1-10, viewed from the sea-side. Each panel is one step, at the top left it is which input is altered in which direction. A plus sign means an increase in the input, a minus sign a decrease. The blue-yellow-red color scale indicates salinity. The shaded areas the clay layers, the white color the location of the river boundaries and the black color the location of sea cells. Note that the vertical of each distribution with the following is stretched by a factor <span class="math-tex">\(4000/\log(\Delta z)\)</span>, since the system thickness varied logarithmically.</p> <p> </p>
Graph of phase shift $\Delta P_0$ vs extropic non-extensive parameter $q$
<p>Graph of phase shift $\Delta P_0$ vs extropic non-extensive parameter $q$, taking rest of parameters as $\varepsilon =0.1$, $\phi _m=1$, $\alpha =3.5 $, $\mu =0.56$ and $\nu=0.44$. The upper curve for $\beta =0.1$ (red line), middle one for $\beta=0.5$ (green line) and lower one is $\beta= 0.95 $ (blue line).</p>
[Artifacts] Colosseum: Regression Test Prioritization by Delta Displacement in Test Coverage
<p>Replication package for [Colosseum: Regression Test Prioritization by Delta Displacement in Test Coverage].</p>
FIGURE 7. Maraenobiotus supermario n in A new species of Maraenobiotus (Copepoda, Harpacticoida) from Lena River Delta (North-Eastern Siberia)
FIGURE 7. Maraenobiotus supermario n. sp. Male allotype: A, P2, anterior; B, P3, anterior; C, P4, anterior.
FIGURE 6. Maraenobiotus supermario n in A new species of Maraenobiotus (Copepoda, Harpacticoida) from Lena River Delta (North-Eastern Siberia)
FIGURE 6. Maraenobiotus supermario n. sp. Male allotype: A, abdomen, dorsal; B, abdomen, ventral; C, spermatophore.
FIGURE 5. Maraenobiotus supermario n in A new species of Maraenobiotus (Copepoda, Harpacticoida) from Lena River Delta (North-Eastern Siberia)
FIGURE 5. Maraenobiotus supermario n. sp. Female holotype: A, P2, anterior; B, P3, anterior; C, P4, anterior.
FIGURE 4. Maraenobiotus supermario n in A new species of Maraenobiotus (Copepoda, Harpacticoida) from Lena River Delta (North-Eastern Siberia)
FIGURE 4. Maraenobiotus supermario n. sp. Female holotype: A, mandible; B, maxillule; C, maxilla; D, maxilliped; E, P1, anterior.
ScienceDex guides
Understand access before you commit
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.