Abundance ratios, as a research area, focuses on the quantitative comparison of relative abundances of elements, isotopes, molecules, or species within a defined system, typically normalized to a reference component or standard. This field develops and applies analytical, statistical, and modeling methodologies to extract physically or biologically meaningful information from these ratios, such as tracing nucleosynthetic processes, chemical evolution, biogeochemical cycling, or ecological interactions. Research emphasizes robust measurement techniques, error propagation, calibration strategies, and interpretation frameworks to distinguish intrinsic variability from observational or experimental biases across spatial, temporal, or environmental gradients.
The detection and study of isotopes, atoms of the same element that have different numbers of neutrons, could expand the scope of physics research and enable new scientific discoveries. So far, rare isotopes have been primarily ...
Using the Baryons Oscillation Spectroscopic Survey (BOSS) spectrograph, astronomers have discovered five new carbon-enhanced metal-poor stars in the Large Magellanic Cloud (LMC). This is the first time such stars have been ...
A team of researchers led by the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences (NIGPAS), in collaboration with colleagues from Shanghai Jiao Tong University, the University of Bristol, and ...
Earth Sciences
Dec 14, 2025
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A new study published in Nature Geoscience has revealed that the global ocean's chemical makeup is undergoing a transformation, with key nutrient ratios critical to marine life shifting away from the long-accepted Redfield ...
Earth Sciences
Jul 21, 2025
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A Southwest Research Institute-led team combined compositional data of primitive bodies like Kuiper Belt objects, asteroids and comets with new solar data sets to develop a revised solar composition that potentially reconciles ...
Astronomy
Nov 12, 2024
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