Results 21 to 30 of about 2,285,311 (372)

Building Mexican isoscapes: Oxygen and hydrogen isotope data of meteoric water sampled across Mexico

open access: yesData in Brief, 2021
Oxygen and hydrogen isotope data of meteoric water samples are compiled from several States across Mexico. This dataset includes 287 oxygen and hydrogen (and deuterium excess) isotope data corresponding to meteoric water collected from the surface ...
Diana K. Moreiras Reynaga   +5 more
doaj   +1 more source

Investigating stable oxygen and carbon isotopic variability in speleothem records over the last millennium using multiple isotope-enabled climate models [PDF]

open access: yesClimate of the Past, 2022
The incorporation of water isotopologues into the hydrology of general circulation models (GCMs) facilitates the comparison between modeled and measured proxy data in paleoclimate archives.
J. C. Bühler   +12 more
doaj   +1 more source

Linear Responses in Time-dependent Hartree-Fock-Bogoliubov Method with Gogny Interaction [PDF]

open access: yes, 2012
A numerical method to integrate the time-dependent Hartree-Fock Bogoliubov (TDHFB) equations with Gogny interaction is proposed. The feasibility of the TDHFB code is illustrated by the conservation of the energy, particle numbers, and center-of-mass in ...
A. Bulgac   +45 more
core   +2 more sources

Isotopic and magnetic proxies are good indicators of millennial-scale variability of the East Asian monsoon

open access: yesCommunications Earth & Environment, 2023
Past East Asian Monsoon variability has been reconstructed using oxygen isotopes of cave speleothems as well as proxy indicators from Chinese loess sequences.
Louise Fuchs   +6 more
doaj   +1 more source

Fragmentation of exotic oxygen isotopes [PDF]

open access: yes, 2003
Abrasion-ablation models and the empirical EPAX parametrization of projectile fragmentation are described. Their cross section predictions are compared to recent data of the fragmentation of secondary beams of neutron-rich, unstable 19,20,21O isotopes at
Aumann, Thomas   +28 more
core   +3 more sources

Heterogeneous sulfate aerosol formation mechanisms during wintertime Chinese haze events: air quality model assessment using observations of sulfate oxygen isotopes in Beijing

open access: yesAtmospheric Chemistry and Physics, 2019
. Air quality models have not been able to reproduce the magnitude of the observed concentrations of fine particulate matter (PM2.5) during wintertime Chinese haze events.
J. Shao   +13 more
semanticscholar   +1 more source

Sedimentary pyrite sulfur isotopes track the local dynamics of the Peruvian oxygen minimum zone

open access: yesNature Communications, 2021
To explore the importance of local vs. global sulfur-cycle controls on variations in pyrite sulfur isotopes, the authors couple carbon-nitrogen-sulfur concentrations and stable isotopes of sediments from the Peruvian oxygen minimum zone, identifying a ...
Virgil Pasquier   +2 more
doaj   +1 more source

Do oxygen isotope values in collagen reflect the ecology and physiology of neotropical mammals?

open access: yesFrontiers in Ecology and Evolution, 2015
Stable isotope data provide insight into the foraging ecology of animals. Traditionally, carbon and nitrogen isotope values have been used to infer dietary and habitat preferences.
Brooke eCrowley   +5 more
doaj   +1 more source

Tree ring dating using oxygen isotopes: a master chronology for central England

open access: yesJournal of Quaternary Science, 2019
Ring‐width dendrochronology, based on matching patterns of ring width variability, works best when trees are growing under significant environmental (climatic) stress.
N. Loader   +5 more
semanticscholar   +1 more source

Adsorption separation of heavier isotope gases in subnanometer carbon pores

open access: yesNature Communications, 2021
Separation of isotopes of heavier gases than hydrogen or helium is essential for biomedical applications, but current methods are very energy and time consuming.
Sanjeev Kumar Ujjain   +15 more
doaj   +1 more source

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