Results 21 to 30 of about 177,874 (317)

Presenting the Compendium Isotoporum Medii Aevi, a Multi-Isotope Database for Medieval Europe

open access: yesScientific Data, 2022
Measurement(s) Isotopes Technology Type(s) Mass Spectrometry Factor Type(s) Carbon isotopes • nitrogen isotopes • sulfur isotopes • oxygen isotopes • strontium isotopes Sample Characteristic - Organism Humans • Animals • Plants Sample Characteristic ...
Carlo Cocozza   +4 more
doaj   +1 more source

Development of lowenergy accelerator-based production of medical isotopes [PDF]

open access: yes, 2013
Here we present methods for production of new and existing isotopes for SPECT (Single Photon Emission Computed Tomography) and PET (Positron Emission Tomography) imaging using accelerator-based systems.
Beasley, P.   +3 more
core   +3 more sources

Metals and metal isotopes incorporation in insect wings: Implications for geolocation and pollution exposure

open access: yesFrontiers in Ecology and Evolution, 2023
Anthropogenic activities are exposing insects to elevated levels of toxic metals and are altering the bioavailability of essential metals. Metals and metal isotopes have also become promising tools for the geolocation of migratory insects.
Megan S. Reich   +10 more
doaj   +1 more source

Identifying nesting grounds for juvenile migratory birds with dual isotope: an initial test using North American raptors

open access: yesEcosphere, 2021
Understanding seasonal mobility, population connectivity, and site fidelity is critical for managing and preserving migratory species. We investigated the potential of coupling strontium (87Sr/86Sr) and hydrogen (δ2H) isotopes in feathers for ...
Brooke E. Crowley   +3 more
doaj   +1 more source

The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces

open access: yesGeophysical Monograph Series, Page 229-246., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson   +2 more
wiley  

+10 more sources

Application of Eichrom Sr Resin to the Separation and Enrichment of Lead and Strontium in Uranium Ore Concentrates

open access: yesYankuang ceshi, 2019
BACKGROUND The traceability study of uranium ore concentrates plays an important role in nuclear forensics. By measuring the abundance ratios of lead and stontium isotopes, the results can provide some geographical indication information for traceability.
XU Zhuo   +5 more
doaj   +1 more source

Strontium as a tracer of weathering processes in a silicate catchment polluted by acid atmospheric inputs, Strengbach, France [PDF]

open access: yes, 2000
This paper determines the weathering and atmospheric contributions of Ca in surface water from a small spruce forested silicate catchment (N–E France) receiving acid atmospheric inputs.
Aubert, Dominique   +9 more
core   +1 more source

A score of bioavailable strontium isotope archaeology in China: Retrospective and prospective

open access: yesFrontiers in Earth Science, 2023
Bioavailable strontium isotope analysis was proposed for prehistoric human ecology almost 40 years ago and rapidly became one of the most important tools to trace past migratory behaviours.
Zihua Tang, Zihua Tang, Xueye Wang
doaj   +1 more source

Strontium Isotope Characteristics (δ88/86Sr, 87Sr/86Sr) of Arima‐Type Brines Originated From Slab‐Fluids

open access: yesGeophysical Research Letters, 2023
In the southwest Japan forearc, slab‐fluids produced from subducted materials migrate to crustal levels and appear as deep‐seated brine. We have analyzed for the first‐time stable strontium isotopes in non‐volcanic spring water with high salinity ...
T. Kani   +6 more
doaj   +1 more source

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