Results 221 to 230 of about 37,366 (283)

Dentine oxygen isotopes (δ (18)O) as a proxy for odontocete distributions and movements. [PDF]

Ecol Evol, 2016
Matthews CJ, Longstaffe FJ, Ferguson SH.
europepmc   +1 more source

Oxygen isotopes suggest elevated thermometabolism within multiple Permo-Triassic therapsid clades. [PDF]

Elife, 2017
Rey K, Amiot R, Fourel F, Abdala F, Fluteau F, Jalil NE, Liu J, Rubidge BS, Smith RM, Steyer JS, Viglietti PA, Wang X, Lécuyer C.   +12 more
europepmc   +1 more source

When collagen fails: Zinc isotopes unlock Sumerian lifeways in southern Mesopotamia. [PDF]

Proc Natl Acad Sci U S A
Giaccari M, Romano L, Soncin S, Panella S, Alhaique F, D'Agostino F, Jaouen K, Tafuri MA.   +7 more
europepmc   +1 more source

Olivine and Fe-isotopes in kimberlites indicate an iron-rich substrate for CLIPPIR and other sub-lithospheric diamonds. [PDF]

Nat Commun
Howarth GH, Giuliani A, Tau MM, Cai R, Liu J.   +4 more
europepmc   +1 more source

Characteristics and implications of carbon and oxygen isotope of lacustrine carbonate rocks from Es4s in Dongying Sag. [PDF]

Sci Rep
Gong J, Yang Z, Chen T, Wang L, Liu Z, Li Q, Li X.   +6 more
europepmc   +1 more source

Triple Oxygen Isotopes

, 2019
The 'detective' power of stable isotopes for processes that occurred in the past, and for elucidating mechanisms at the molecular level, has impressed researchers over the past 100 years, since the time when isotopes of elements were first discovered.
Bao, Huiming
openaire   +2 more sources

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Industrial separation of oxygen isotopes by oxygen distillation

Journal of Labelled Compounds and Radiopharmaceuticals, 2019
18O‐labeled water (Water‐18O) is a widely used starting material of 18F‐labeled diagnostic agents in positron emission tomography (PET). Conventionally, Water‐18O has been separated from other stable oxygen isotope species (16O, 17O) by water distillation or nitric oxide distillation. However, conventional methods are costly and may have safety issues.
Takehiro Igarashi, Takashi Kambe, Hitoshi Kihara   +2 more
openaire   +2 more sources

Oxygen Isotope Zoning in Garnet

Science, 1991
Oxygen isotope zoning was examined within garnet with the use of the stable isotope laser probe. Four metamorphic garnets from the regional metamorphic terrane in Vermont and the skarn deposit at Carr Fork, Utah, were examined and were found to be concentrically zoned in δ 18 O values. The largest variations in δ
C P, Chamberlain, M E, Conrad
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Isotope ratios in photosynthetic oxygen

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1979
Axenic suspensions of the fresh water green alga Ankistrodesmus braunii were illuminated under aerobic conditions. The released gas mixture was introduced into the ion source of an isotope mass spectrometer, which recorded the 18O/16O ratio.
H, Metzner, K, Fischer, O, Bazlen
openaire   +2 more sources