Results 151 to 160 of about 23,535 (202)

Accumulation rates and sources of sediments and organic carbon on the Palos Verdes shelf based on radioisotopic tracers (137Cs, 239,240Pu, 210Pb, 234Th, 238U and 14C)

Marine Chemistry, 2001
We report here bioturbation and sediment accumulation rates determined from replicate sediment cores at four different sampling sites on the Palos Verdes shelf, Southern California, using bomb fallout and natural radionuclides (137Cs, 239,240Pu, 210Pb, 234Th, and 14C), along with supporting measurements of organic carbon (OC), porosity and granulometry.
Peter H Santschi, Laodong Guo, Shaunna Asbill, Mead Allison, A Britt Kepple, Liang-Saw Wen   +5 more
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Optimization of carbon-14 radioisotope microscope via étendue analysis

Multimodal Biomedical Imaging XX
Calliope Martin, Sagar Doshi, Rajeev Ram
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ChemInform Abstract: KINETICS OF RADIOISOTOPIC EXCHANGE BETWEEN CARBON‐14‐LABELED ACETYLACETONE AND COBALT(III) ACETYLACETONATE IN DIOXANE

Chemischer Informationsdienst, 1976
STANISLAW WAJDA, ANNA SZEMIK
openaire   +2 more sources

Review for "Novel reverse radioisotope labelling experiment reveals carbon assimilation of marine calcifiers under ocean acidification conditions"

, 2020
  +5 more sources

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Determination of Calcium Carbonate Moisture Content by a Radioisotope Technique

Journal of Pharmaceutical Sciences, 1962
The transmission of beta particles through calcium carbonate samples with different moisture contents was studied. It was found that the transmission was linearly related to the moisture content.
M C, SCHNEITER, W V, KESSLER, J E, CHRISTIAN   +2 more
openaire   +2 more sources

Radioisotope-Based Protocol for Determination of Central Carbon Metabolism in T Cells

2020
T lymphocytes are the major components of the adaptive immune system. It's been known that T cells are able to engage a diverse range of metabolic programs to meet the metabolic demands during their life cycle from early development, activation to functional differentiation.
Xuyong, Chen, John William, Sherman, Ruoning, Wang   +2 more
openaire   +2 more sources

Terrestrial radioisotopes in black shale hosted Mn-carbonate deposit (Úrkút, Hungary)

Acta Geophysica, 2013
Previously, little attention has been paid to terrestrial radioisotopes (U, Th, 40K) occurring in manganese ores, despite the fact that the biogeochemical relationship between Mn and U is versatile. Occurrence of terrestrial radioisotopes in great amounts during mining on a long-term causes significant radiation exposure.
Vigh, Tamás, Kovács, Tibor, Somlai, János, Kávási, Norbert, Polgári, Márta, Biró, Lóránt   +5 more
openaire   +1 more source

[Lactose and bile acid absorption test--breath test using carbon radioisotope].

Nihon rinsho. Japanese journal of clinical medicine, 1979
Yosuke Sasaki
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Estimation of groundwater residence time using environmental radioisotopes (¹⁴C,T) in carbonate aquifers, southern Poland

Isotopes in Environmental and Health Studies, 2013
Triassic carbonate aquifers in the Upper Silesia region, affected by intense withdrawal, have been investigated by means of isotopic analyses of (14)C, δ(13)C, δ(2)H, δ(18)O and (3)H. The isotopic examinations were carried out in the 1970s and in the early 1980s, and it was the first application of tracers to estimate age and vulnerability for the ...
Katarzyna, Samborska, Andrzej, Różkowski, Piotr, Małoszewski   +2 more
openaire   +2 more sources

Decision letter for "Novel reverse radioisotope labelling experiment reveals carbon assimilation of marine calcifiers under ocean acidification conditions"

, 2020
  +4 more sources