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32 results for “carbon label”
Respiration, isotope composition, and carbon source partitioning from incubations of soil amended with litter and isotope-labeled lignin
We incubated 10 forest soils (collected from sites across North America, including the Luquillo LTER/CZO) in the laboratory for over two years to quantify the decomposition of carbon derived from added litter and lignin, as well as from extant soil organic matter. Each soil was subjected to two substrate addition treatments: a) litter derived from a C4 grass precipitated with 13C-enriched lignin, or the same C4 grass litter was precipitated with natural-abundance lignin. The concentrations and delta13C composition of carbon dioxide produced from each soil were measured periodically over time and partitioned into sources (soil organic matter, litter, and added lignin) using isotope mixing models. The methods and results are described in detail by a manuscript in Ecology (Hall et al., 2020).
Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2000
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2000.
Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2001
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2001.
Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2003
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2003.
Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2005
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2005.
Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2006
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2006.
Data from: Novel reverse radioisotope labelling experiment reveals carbon assimilation of marine calcifiers under ocean acidification conditions
<p><span>1. Ocean acidification by anthropogenic carbon dioxide emissions is projected to depress metabolic and physiological activity in marine calcifiers. To evaluate the sensitivity of marine organisms against ocean acidification, the assimilation of nutrients into carbonate shells and soft tissues must be examined.</span></p> <p><span>2. We designed a novel experimental protocol, reverse radioisotope labelling, to trace partitioning of nutrients within a single bivalve species under ocean acidification conditions. Injecting CO<sub>2</sub> gas, free from radiocarbon, can provide a large contrast between carbon dissolved in the water and the one assimilated from atmosphere. By culturing modern aquifer organisms in acidified seawater, we were able to determine differences in the relative contributions of the end members, dissolved inorganic carbon (DIC) in seawater and metabolic CO<sub>2</sub>, to shell carbonate and soft tissues. </span></p> <p><span>3. Under all pCO<sub>2</sub> conditions (463, 653, 872, 1137, and 1337 μatm), radiocarbon (Δ<sup>14</sup>C) values of the bivalve (<i>Scapharca broughtonii</i>) shell were significantly correlated with seawater DIC values; therefore, shell carbonate was derived principally from seawater DIC. The Δ<sup>14</sup>C results together with stable carbon isotope (δ<sup>13</sup>C) data suggest that in <i>S. broughtonii</i> shell δ<sup>13</sup>C may reflect the kinetics of isotopic equilibration as well as end-member contributions; thus, care must be taken when analyzing end-member contributions by a previous method using δ<sup>13</sup>C. The insensitivity of <i>S. broughtonii</i> to perturbations in pCO<sub>2</sub> up to at least 1337 µatm indicates that this species can withstand ocean acidification.</span></p> <p><span>4. Usage of radioisotope to dope for tracer experiments requires strict rules to conduct any operations. Yet, reverse radioisotope labeling proposing in this study has a large advantage and is a powerful tool to understanding physiology of aquifer organisms that can be applicable to various organisms and culture experiments, such as temperature, salinity, and acidification experiments, to improve understanding of the proportions of nutrients taken in by marine organisms under changing environments.</span></p>
A Trial to Learn How a New Liquid Form of BAY1817080 is Tolerated and Taken up by the Body of Healthy Male Participants (Part A). By Labeling BAY1817080 With a Radioactive Substance (Carbon 14) Resear
ClinicalTrials.gov study NCT04487431. IPD Sharing: NO. Countries: 1. Publications: 1.
Labelled Carbon Sucrose Breath Test (13C-SBT) as a Marker of Environmental Enteropathy
ClinicalTrials.gov study NCT04109352. IPD Sharing: NO. Countries: 8. Publications: 2.
Carbon-11 Labeled Sarcosine in Prostate Cancer
ClinicalTrials.gov study NCT02462447. IPD Sharing: NO. Countries: 1. Publications: 1.
Data from: Novel reverse radioisotope labelling experiment reveals carbon assimilation of marine calcifiers under ocean acidification conditions
Open the record for dataset details and reuse information.
A Study of Carbon-14-Labeled LY2835219 ([^14C]-LY2835219) in Healthy Participants
ClinicalTrials.gov study NCT01913314. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A Study of Absorption, Metabolism, Excretion, and Absolute Bioavailability of Carbon-14-Labelled [14C] Selpercatinib (LY3527723) in Healthy Male Participants
ClinicalTrials.gov study NCT05630287. IPD Sharing: NO. Countries: 1. Publications: 0.
Disposition of Carbon-14-Labeled LY2886721 ([^14C]-LY2886721) Following Oral Administration in Healthy Human Participants
ClinicalTrials.gov study NCT01367262. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A Study to Determine the Metabolism and Elimination of Carbon-14 Labeled Eribulin Acetate (14C-Eribulin) in Patients With Advanced Solid Tumors
ClinicalTrials.gov study NCT00908908. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A Study of Carbon-14-Labelled [14C] LOXO-305 (Pirtobrutinib) in Healthy Male Participants
ClinicalTrials.gov study NCT06180954. IPD Sharing: NO. Countries: 1. Publications: 0.
An Open Label Dose Titration of Sevelamer Carbonate Tabs 3 Times a Day in Hyperphosphatemic CKD Patients Not On Dialysis
ClinicalTrials.gov study NCT00681941. IPD Sharing: Not stated. Countries: 5. Publications: 0.
An Open Label, Dose Titration Study of Sevelamer Carbonate Tablets & Powder in Hyperphosphatemic CKD Patients
ClinicalTrials.gov study NCT02332811. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Targeted Biopsy of Carbon Nanoparticles Labelled Axillary Node for CN+ Breast Cancer
ClinicalTrials.gov study NCT04482803. IPD Sharing: NO. Countries: 1. Publications: 0.
A Study of Carbon-14-Labeled [14C]-LY3549492 in Healthy Participants
ClinicalTrials.gov study NCT06194500. IPD Sharing: NO. Countries: 1. Publications: 0.
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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.