David L. Cook
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View article: Point-of-Care Ultrasound Use in Nephrology: A Survey of Nephrology Program Directors, Fellows, and Fellowship Graduates
Point-of-Care Ultrasound Use in Nephrology: A Survey of Nephrology Program Directors, Fellows, and Fellowship Graduates Open
Nephrology program directors, fellows, and graduates surveyed want POCUS training incorporated into the fellowship curriculum. No group felt sufficiently trained to confidently perform POCUS, and the major barrier to training was lack of s…
View article: Iron and Nickel Isotopes in IID and IVB Iron Meteorites: Evidence for Admixture of an SN II Component and Implications for the Initial Abundance of <sup>60</sup>Fe
Iron and Nickel Isotopes in IID and IVB Iron Meteorites: Evidence for Admixture of an SN II Component and Implications for the Initial Abundance of <sup>60</sup>Fe Open
We measured Fe and Ni isotopes in 13 iron meteorites from magmatic groups II D and IV B. Resolvable deficits (≈−0.14) are observed in ε 60 Ni in both groups. Small deficits (≈−0.08) are also evident in ε 56 Fe but not in the most neutron-r…
View article: Galactic cosmic ray effects on iron and nickel isotopes in iron meteorites
Galactic cosmic ray effects on iron and nickel isotopes in iron meteorites Open
We present model calculations for cosmogenic production rates in order to quantify the potential effects of spallation and neutron capture reactions on Fe and Ni isotopes in iron meteorites. We aim to determine whether the magnitude of any…
View article: The constancy of galactic cosmic rays as recorded by cosmogenic nuclides in iron meteorites
The constancy of galactic cosmic rays as recorded by cosmogenic nuclides in iron meteorites Open
We measured the He, Ne, and Ar isotopic concentrations and the 10 Be, 26 Al, 36 Cl, and 41 Ca concentrations in 56 iron meteorites of groups IIIAB , IIAB , IVA , IC , IIA , IIB , and one ungrouped. From 41 Ca and 36 Cl data, we calculated …
View article: High-precision strontium isotope analysis of geological samples by thermal ionisation mass spectrometry
High-precision strontium isotope analysis of geological samples by thermal ionisation mass spectrometry Open
View article: Late metal–silicate separation on the IAB parent asteroid: Constraints from combined W and Pt isotopes and thermal modelling
Late metal–silicate separation on the IAB parent asteroid: Constraints from combined W and Pt isotopes and thermal modelling Open
View article: Cosmic‐ray exposure ages of pallasites
Cosmic‐ray exposure ages of pallasites Open
We analyzed cosmogenic nuclides in metal and/or silicate (primarily olivine) separated from the main‐group pallasites Admire, Ahumada, Albin, Brahin, Brenham, Esquel, Finmarken, Glorieta Mountain, Huckitta, Imilac, Krasnojarsk, Marjalahti,…