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300
datasets available to search
ShareScore release 0.9.0
Dataset results
300 results for “tracers”
⁸⁹Zr-Df-IAB22M2C (CD8 PET Tracer) for PET/CT in Patients With Metastatic Solid Tumors
ClinicalTrials.gov study NCT03802123. IPD Sharing: NO. Countries: 1. Publications: 0.
Study of AMDX-2011P as a Retinal Tracer in Subjects With Neurodegenerative Diseases Associated With Amyloidogenic Proteinopathy
ClinicalTrials.gov study NCT05542576. IPD Sharing: NO. Countries: 1. Publications: 0.
Pain Control for Breast Cancer Patients Receiving Injection of Radioactive Tracer
ClinicalTrials.gov study NCT04822597. IPD Sharing: NO. Countries: 1. Publications: 0.
Multi-Tracer Positron Emission Tomography in Patients With Solid Tumors
ClinicalTrials.gov study NCT01243333. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Dual-Tracer Theranostic PET
ClinicalTrials.gov study NCT05680675. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Linking evapotranspiration, boundary-layer processes and atmospheric moisture using isotope tracer modeling and data
Open the record for dataset details and reuse information.
Data from: Urine is an important nitrogen source for plants irrespective of vegetation composition in an Arctic tundra: insights from a 15N-enriched urea tracer experiment
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Data from: Silica Particles with Encapsulated DNA as trophic tracers
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Data from: Below-ground resource partitioning alone cannot explain the biodiversity–ecosystem function relationship: a field test using multiple tracers
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Supplementary material for "Multi-tracer model for staging cortical amyloid deposition using PET imaging"
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Tracer Experiment Stream Nutrients during 1995
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ATom: GEOS-5 Derived Meteorological Conditions and Tagged Tracers Along Flight Tracks
This dataset provides modeled meteorological conditions and tagged-CO tracer concentrations along ATom flight paths derived from the Goddard Earth Observing System Version 5 (GEOS-5) data assimilation products from the Global Modeling and Assimilation Office (GMAO) at NASA's Goddard Space Flight Center. The GMAO "GEOS fp" forward processing system ingests satellite, ground-based, and airborne data, using a sophisticated model along with the data's statistical properties to obtain global three-dimensional data gridded fields at regular time intervals. These data are from the GMAO model output that were fitted to the ATom flight tracks by interpolating the GMAO model output to the horizontal ATom flight tracks for each of the 4 ATom Deployments. The dataset also provides tagged-CO tracer concentrations, which represent the contribution of specific regional sources to the total simulated CO. The data products produced are consistent with both the original measurements and the physical laws governing the atmosphere. To provide some meteorological context for the ATom flights, the GEOS5 gridded data are interpolated in space and time to the flight tracks.
ATom: Observed and GEOS-5 Simulated CO Concentrations with Tagged Tracers for ATom-1
This dataset contains carbon monoxide (CO) observations at 10-second intervals from flights during the ATom-1 campaign in 2016 and simulated CO concentrations from the Goddard Earth Observing System version 5 (GEOS-5) model for the corresponding locations along the ATom flight tracks. The Atmospheric Tomography Mission (ATom) is a NASA Earth Venture Suborbital-2 mission studying the impact of human-produced air pollution on greenhouse gases and on chemically reactive gases in the atmosphere. The airborne observations were collected using the Quantum Cascade Laser System (QCLS) instrument, a high-frequency laser spectroscopy instrument for in situ atmospheric gas sampling. This dataset provides a direct comparison of observational and simulated CO that will be used to inform future atmospheric modeling experiments. The dataset also contains simulated tagged-CO tracer concentrations, which represent the contribution of specific regional sources to the total simulated CO. This dataset contributes to one of the ATom mission objectives to create an observation-based chemical climatology of important atmospheric constituents and their reactivity in the remote troposphere.
Single cell RNA sequencing analysis of CD45low/+ lineagelow lung cells from adult and neonatal (12-day-old) RORα lineage tracer mice
GEO Series GSE122762. Mus musculus. 2 samples. Type: Expression profiling by high throughput sequencing.
Patient-derived parathyroid organoids as tracer and drug-screening application model
GEO Series GSE197445. Homo sapiens. 9 samples. Type: Expression profiling by high throughput sequencing.
Data for brown carbon and related tracers observed in Alert, Arctic
<p>The data supports the manuscript entitled “<strong>Sources and Radiative Absorption of Water-Soluble Brown Carbon in the High Arctic Atmosphere</strong>”, and the file can be opened by Excel. The data can be used freely for scientific purposes with appropriate citation.</p>
Data from: Blood tracer kinetics in the arterial tree
Evaluation of blood supply of different organs relies on labeling blood with a suitable tracer. The tracer kinetics is linear: Tracer concentration at an observation site is a linear response to an input somewhere upstream the arterial flow. The corresponding impulse response functions are currently treated empirically without incorporating the relation to the vascular morphology of an organ. In this work we address this relation for the first time. We demonstrate that the form of the response function in the entire arterial tree is reduced to that of individual vessel segments under approximation of good blood mixing at vessel bifurcations. The resulting expression simplifies significantly when the geometric scaling of the vascular tree is taken into account. This suggests a new way to access the vascular morphology in vivo using experimentally determined response functions. However, it is an ill-posed inverse problem as demonstrated by an example using measured arterial spin labeling in large brain arteries. We further analyze transport in individual vessel segments and demonstrate that experimentally accessible tracer concentration in vessel segments depends on the measurement principle. Explicit expressions for the response functions are obtained for the major middle part of the arterial tree in which the blood flow in individual vessel segments can be treated as laminar. When applied to the analysis of regional cerebral blood flow measurements for which the necessary arterial input is evaluated in the carotid arteries, present theory predicts about 20% underestimation, which is in agreement with recent experimental data.
Tracer and Observationally-Derived Constraints on Diapycnal Diffusivities in an Ocean State Estimate
<p>Data used to generate the figures in Trossman et al. (2022) in Ocean Science, an EGU journal</p>
Dataset: N-15 tracer study in coastal marshes of Barataria Bay, LA (v.0.10)
<p>The application of isotopic tracers and the subsequent analysis of nitrogen isotope ratios are commonly used to track the spatial and temporal fate of nutrients in both aquatic and terrestrial systems. A substantial amount of work has been completed to determine the nitrogen (N) removal capacity of agricultural, municipal wastewater, and storm water treatment wetlands. However, the fate of N enrichment on varying marsh systems is still not completely understood or predictable. To evaluate relationships between nutrients and plant responses, biogeochemical processes, and nutrient retention and export across varying ecotomes, a full factorial nutrient and sediment field study was implemented in early May 2019, consisting of three different marshes either dominated by <em>Sagittaria</em> <em>lancifolia</em>, <em>Spartina</em> <em>patens</em>, or <em>Schoenoplectus</em> <em>americanus</em>. Each system was labeled with the stable isotope Nitrogen-15 (N<sup>15</sup>) early in the growing season (June 15, 2019) by injecting calcium nitrate (10 atom % N<sup>15</sup>) in three installments once per day at mid-tide so as to limit loss of the tracer downward through percolation. A total of 250 mL of label was injected at 10 cm depth for a total of 1.2 g N<sup>15</sup> per plot. Data collection occurred on day 5, 15, and 30 following last injection, consisting of species richness and abundance, aboveground biomass, belowground biomass, and soil. Plant tissues and soil were examined to determine the processing and fate of dissolved NO<sub>3</sub>- in these plant communities.</p>
Neuroimaging MAO-B in Medication Free TR-MDD Using Novel Tracer
ClinicalTrials.gov study NCT02153281. IPD Sharing: Not stated. Countries: 1. 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.