Search Results - "BECKETT, J. R"

Additional factors for the estimation of mean glandular breast dose using the UK mammography dosimetry protocol by Dance, D R, Skinner, C L, Young, K C, Beckett, J R, Kotre, C J

“…The UK and European protocols for mammographic dosimetry use conversion factors that relate incident air kerma to the mean glandular dose (MGD) within the…”
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The formation of boundary clinopyroxenes and associated glass veins in type B1 CAIs by PAQUE, J. M., BECKETT, J. R., ISHII, H. A., ALÉON-TOPPANI, A., BURNETT, D. S., TESLICH, N., DAI, Z. R., BRADLEY, J. P.

“…— We used focused ion beam thin section preparation and scanning transmission electron microscopy (FIB/STEM) to examine the interfacial region between spinel…”
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Zoning patterns of Fe and V in spinel from a type B Ca-Al-rich inclusion: Constraints on subsolidus thermal history by PAQUE, J. M., BURNETT, D. S., BECKETT, J. R.

“…We obtained two‐dimensional concentration maps for the minor elements Fe and V in 21 spinel crystals in the Allende type B1 inclusion TS‐34 with a 4–5 μm…”
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Effects of Static Stretching on Repeated Sprint and Change of Direction Performance by BECKETT, James R. J, SCHNEIKER, Knut T, WALLMAN, Karen E, DAWSON, Brian T, GUELFI, Kym J

“…To examine the effects of static stretching during the recovery periods of field-based team sports on subsequent repeated sprint ability (RSA) and change of…”
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Dosimetric implications of age related glandular changes in screening mammography by Beckett, J R, Kotre, C J

“…The UK National Health Service Breast Screening Programme is currently organized to routinely screen women between the ages of 50 and 64, with screening for…”
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Correlations and zoning patterns of phosphorus and chromium in olivine from H chondrites and the LL chondrite Semarkona by McCanta, M. C., Beckett, J. R., Stolper, E. M.

“…Phosphorus zoning is observed in olivines in high‐FeO (type IIA) chondrules in H chondrites over the entire range of petrologic grades: H3.1–H6. Features in P…”
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Analysis of benefit :risk ratio and mortality reduction for the UK Breast Screening Programme by BECKETT, J. R, KOTRE, C. J, MICHAELSON, J. S

“…A quantitative analysis has been performed to predict the benefit:risk ratio and associated mortality reduction for the UK National Health Service Breast…”
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Estimation of mean glandular dose for mammography of augmented breasts by Beckett, J R, Kotre, C J

“…The standard quantity used to relate breast surface exposure to radiation risk is the mean dose received by the radiation sensitive tissue contained within the…”
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XANES and Mg isotopic analyses of spinels in Ca-Al-rich inclusions: Evidence for formation under oxidizing conditions by Paque, J. M., Sutton, S. R., Simon, S. B., Beckett, J. R., Burnett, D. S., Grossman, L., Yurimoto, H., Itoh, S., Connolly Jr, H. C.

“…Ti valence measurements in MgAl2O4 spinel from calcium‐aluminum‐rich inclusions (CAIs) by X‐ray absorption near‐edge structure (XANES) spectroscopy show that…”
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Volatilization kinetics of silicon carbide in reducing gases: an experimental study with applications to the survival of presolar grains in the solar nebula by Mendybaev, R A, Beckett, J R, Grossman, L, Stolper, E, Cooper, R F, Bradley, J P

“…The volatilization kinetics of single crystal alpha -SiC, polycrystalline beta -SiC, and SiO sub(2) (cristobalite or glass) were determined in H sub(2)-CO…”
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Measurement of oxygen fugacities under reducing conditions: non-Nernstian behavior of Y2O3-doped zirconia oxygen sensors by Mendybaev, R.A, Beckett, J.R, Stolper, E, Grossman, L

“…This study presents a simple procedure for correcting measurements using Y2O3-stabilized oxygen sensors so that oxygen fugacities can be determined accurately…”
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The measurement of oxygen fugacities in flowing gas mixtures at temperatures below 1200°C by Beckett, J.R., Mendybaev, R.A.

“…We measured oxygen fugacities in H2-CO2 and CO-CO2 gas mixtures in the temperature interval 700–1350°C using an yttria-stabilized zirconia (YSZ) oxygen sensor…”
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Effects of pH2O, pH2 and fO2 on the diffusion of H-bearing species in lunar basaltic liquid and an iron-free basaltic analog at 1 atm by Newcombe, M.E., Beckett, J.R., Baker, M.B., Newman, S., Guan, Y., Eiler, J.M., Stolper, E.M.

“…We have experimentally determined the diffusivity of water in a representative lunar basaltic liquid composition (LG) and in an iron-free analog of a basaltic…”
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Solubility of water in lunar basalt at low pH2O by Newcombe, M.E., Brett, A., Beckett, J.R., Baker, M.B., Newman, S., Guan, Y., Eiler, J.M., Stolper, E.M.

“…We report the solubility of water in Apollo 15 basaltic “Yellow Glass” and an iron-free basaltic analog composition at 1atm and 1350°C. We equilibrated melts…”
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Mineralogy, petrography, and oxygen isotopic compositions of ultrarefractory inclusions from carbonaceous chondrites by Krot, A.N., Ma, C., Nagashima, K., Davis, A.M., Beckett, J.R., Simon, S.B., Komatsu, M., Fagan, T.J., Brenker, F., Ivanova, M.A., Bischoff, A.

“…We report on the mineralogy, petrography, and in situ oxygen isotopic composition of twenty-five ultrarefractory calcium-aluminum-rich inclusions (UR CAIs) in…”
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XANES and M g isotopic analyses of spinels in C a‐ A l‐rich inclusions: Evidence for formation under oxidizing conditions by Paque, J. M., Sutton, S. R., Simon, S. B., Beckett, J. R., Burnett, D. S., Grossman, L., Yurimoto, H., Itoh, S., Connolly, H. C.

“…Abstract Ti valence measurements in MgAl 2 O 4 spinel from calcium‐aluminum‐rich inclusions ( CAI s) by X‐ray absorption near‐edge structure ( XANES )…”
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Role of basicity and tetrahedral speciation in controlling the thermodynamic properties of silicate liquids. I - The system CaO-MgO-Al2O3-SiO2 by Beckett, J R

“…Activity coefficients of oxide components in the system CaO-MgO-Al2O3-SiO2 (CMAS) were calculated with the model of Berman (1983) and used to explore…”
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The origin of abyssal peridotites: a reinterpretation of constraints based on primary bulk compositions by Baker, Michael B., Beckett, John R.

“…We calculated primary bulk compositions for a global suite of abyssal peridotites using primary mineral modes and either analyzed or calculated phase…”
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The Structure of Graphite Oxide by Beckett, R. J, Croft, R. C

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Infectious genomic RNA of Rhopalosiphum padi virus transcribed in vitro from a full-length cDNA clone by Boyapalle, Sandhya, Beckett, Randy J, Pal, Narinder, Miller, W. Allen, Bonning, Bryony C

“…Abstract Availability of a cloned genome from which infectious RNA can be transcribed is essential for investigating RNA virus molecular mechanisms. To date,…”
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