Zobrazeno 1 - 10 of 14 pro vyhledávání: '"Joseph L. Skulan"'
1
New frontiers in calcium stable isotope geochemistry: Perspectives in present and past vertebrate biology
Autor: Joseph L. Skulan, Sandrine Le Houedec, Théo Tacail
Publikováno v: Chemical Geology
Chemical Geology, Elsevier, 2020, pp.119471. ⟨10.1016/j.chemgeo.2020.119471⟩
Chemical Geology, 2020, pp.119471. ⟨10.1016/j.chemgeo.2020.119471⟩
Tacail, T, Houedec, S L & Skulan, J L 2020, ' New frontiers in calcium stable isotope geochemistry : Perspectives in present and past vertebrate biology ', Chemical Geology, vol. 537, 119471 . https://doi.org/10.1016/j.chemgeo.2020.119471
Highlights • Vertebrate physiology induces systematic variations of calcium isotope compositions. • Isotope effects are used to develop tools in bioarchaeology and biomedical research. • Ca isotopes in past vertebrates document their trophic ec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc9c8ef6e4d7f258e6280d1f162be2d1
https://hal.univ-angers.fr/hal-02443819
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2
Using natural, stable calcium isotopes of human blood to detect and monitor changes in bone mineral balance
Autor: Melanie B. Channon, Scott M. Smith, Jennifer L. L. Morgan, Ariel D. Anbar, Gwyneth W. Gordon, Joseph L. Skulan
Publikováno v: Bone. 77:69-74
We are exploring variations in the Ca isotope composition of blood and urine as a new tool for early diagnosis and monitoring of changes in bone mineral balance for patients suffering from metabolic bone disease, cancers that originate in or metastas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::362aa4504209e45f66143d55bd25a59b
https://doi.org/10.1016/j.bone.2015.04.023
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4
Rapidly assessing changes in bone mineral balance using natural stable calcium isotopes
Autor: Gwyneth W. Gordon, Jennifer L. L. Morgan, Stephen J. Romaniello, Ariel D. Anbar, Scott M. Smith, Joseph L. Skulan
Publikováno v: Proceedings of the National Academy of Sciences. 109:9989-9994
The ability to rapidly detect changes in bone mineral balance (BMB) would be of great value in the early diagnosis and evaluation of therapies for metabolic bone diseases such as osteoporosis and some cancers. However, measurements of BMB are hampere
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3cdff16e4a7d8614ad513f5591ab531
https://doi.org/10.1073/pnas.1119587109
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5
Application of Fe isotopes to tracing the geochemical and biological cycling of Fe
Autor: Kenneth H. Nealson, Lea Cox, Clark M. Johnson, Henry J. Sun, Brian L. Beard, Joseph L. Skulan
Publikováno v: Chemical Geology. 195:87-117
Over 100 high-precision Fe isotope analyses of rocks and minerals are now available, which constrain the range in d 56 Fe values (per mil deviations in 56 Fe/ 54 Fe ratios) in nature from � 2.50xto +1.5x. Re-assessment of the range of d 56 Fe value
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c73fe9d9b33e9eaac490fccac057558
https://doi.org/10.1016/s0009-2541(02)00390-x
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7
Isotopic fractionation between Fe(III) and Fe(II) in aqueous solutions
Autor: Clark M. Johnson, Joseph L. Skulan, Brian L. Beard, Paul S. Braterman, Kenneth H. Nealson, Henry J. Sun
Publikováno v: Earth and Planetary Science Letters. 195:141-153
Large equilibrium isotope fractionation occurs between Fe(III) and Fe(II) in very dilute (≤22 mM Cl − ) aqueous solutions, reflecting significant differences in bonding environments. Separation of Fe(III) and Fe(II) is attained by rapid and compl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a5facce41b6cb357eb5eba32c83ec4a
https://doi.org/10.1016/s0012-821x(01)00581-7
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8
Has the importance of the amniote egg been overstated?
Autor: Joseph L. Skulan
Publikováno v: Zoological Journal of the Linnean Society. 130:235-261
The evolution of the amniote egg is commonly regarded as an important milestone in the history of the vertebrates, an innovation that completed the transition from aquatic to fully terrestrial existence by permitting eggs to be laid away from standin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4336b135e455e5bbba2a1a66efb6d12
https://doi.org/10.1111/j.1096-3642.2000.tb01631.x
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9
Calcium isotope fractionation between soft and mineralized tissues as a monitor of calcium use in vertebrates
Autor: Donald J. DePaolo, Joseph L. Skulan
Publikováno v: Proceedings of the National Academy of Sciences. 96:13709-13713
revious studies of calcium isotope geochemistry document the existence of natural mass-related variations in the cal- cium isotopic composition of rocks, minerals, and biological samples (1-3). The biological causes and significance of the variations
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d2957bf54fa33c0b76866df43541f3
https://doi.org/10.1073/pnas.96.24.13709
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10
Using natural stable calcium isotopes to rapidly assess changes in bone mineral balance using a bed rest model to induce bone loss
Autor: Jennifer L. L. Morgan, Ariel D. Anbar, Gwyneth Gordon, Stephen J. Romaniello, Scott M. Smith, Joseph L. Skulan
Publikováno v: The FASEB Journal. 26
Metabolic bone diseases like osteoporosis result from the disruption of normal bone mineral balance (BMB) resulting in bone loss. During spaceflight astronauts lose substantial bone. Bed rest provides an analog to simulate some of the effects of spac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dee966f616cad61cfc05feeedee996b4
https://doi.org/10.1096/fasebj.26.1_supplement.244.1
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