Examples of fractionation

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The skeletons of non-photosymbiotic corals appear to show no isotopic fractionation, and so faithfully record sea-water temperature changes.
These probably represent the maximum values since partial re-equilibration between the ferrous and ferric species during separation will yield lower measured fractionations.
Such spidergrams strongly suggest that these metafelsites solidified from highly fractionated melts, which underwent extensive, low pressure, accessory phases- and feldspar-dominated crystal fractionation.
These differences are also consistent model predictions of sulfur isotope fractionations produced by biosynthetic networks.
Fractionation did not induce any notable changes in follicle size.
These results are analogous to the deviations shown by fractionation due to bacterial sulphate reduction.
Recent reports of accelerated radiotherapy fractionation in head and neck cancer indicate that very modest shortening of treatment has a detectable impact on local control.
This may result in shrinkage, relocation, or fractionation of functional maps.
The lack of intermediate composition probably is problematic to the fractionation model, although this does not in itself disprove the hypothesis.
For 207/206, mass fractionation in the detector was corrected by multiplying the measure value by (207/206).
Strong kinetic isotope fractionation effects could not be observed in this study.
Future experiments based on carbon isotope fractionation ratios should be performed to confirm this notion.
These results also highlight an important limitation of bioassay-driven fractionations: the assumption of non-additive effects.
Studies to evaluate the isotopic fractionation of these synthesis pathways are currently underway.
It is commonly believed that both processes are very efficient and do not cause much fractionation of the isotopes.
Within these increasingly complex treatments, the impact of the fractionation regimes adopted needs to be considered.
Although some nuclei were disrupted, releasing chromatin that spread in the field, this did not interfere with the fractionation yield.

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