Search Results - "Bekker, A. A."

Tracing the stepwise oxygenation of the Proterozoic ocean by Scott, C, Lyons, T. W, Bekker, A, Shen, Y, Poulton, S. W, Chu, X, Anbar, A. D

“…Biogeochemical signatures preserved in ancient sedimentary rocks provide clues to the nature and timing of the oxygenation of the Earth's atmosphere…”
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Iron formations: A global record of Neoarchaean to Palaeoproterozoic environmental history by Konhauser, K.O., Planavsky, N.J., Hardisty, D.S., Robbins, L.J., Warchola, T.J., Haugaard, R., Lalonde, S.V., Partin, C.A., Oonk, P.B.H., Tsikos, H., Lyons, T.W., Bekker, A., Johnson, C.M.

“…Iron formations (IF) represent an iron-rich rock type that typifies many Archaean and Proterozoic supracrustal successions and are chemical archives of…”
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Rapid emergence of subaerial landmasses and onset of a modern hydrologic cycle 2.5 billion years ago by Bindeman, I. N., Zakharov, D. O., Palandri, J., Greber, N. D., Dauphas, N., Retallack, G. J., Hofmann, A., Lackey, J. S., Bekker, A.

“…The history of the growth of continental crust is uncertain, and several different models that involve a gradual, decelerating, or stepwise process have been…”
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Explicit and implicit attitude toward an emerging food technology: The case of cultured meat by Bekker, Gerben A., Fischer, Arnout R.H., Tobi, Hilde, van Trijp, Hans C.M.

“…Cultured meat is an unfamiliar emerging food technology that could provide a near endless supply of high quality protein with a relatively small ecological…”
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Infectious disease exposures and outbreaks at a South African neonatal unit with review of neonatal outbreak epidemiology in Africa by Dramowski, A, Aucamp, M, Bekker, A, Mehtar, S

“…Highlights • Outbreaks in hospitalized South African neonates are frequent but under-reported. • Thirteen outbreaks were documented, affecting 148 babies over…”
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Oxygen isotope perspective on crustal evolution on early Earth: A record of Precambrian shales with emphasis on Paleoproterozoic glaciations and Great Oxygenation Event by Bindeman, I.N., Bekker, A., Zakharov, D.O.

“…We present stable isotope and chemical data for 206 Precambrian bulk shale and tillite samples that were collected mostly from drillholes on all continents and…”
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The chlorine isotope composition of chondrites and Earth by Sharp, Z.D., Mercer, J.A., Jones, R.H., Brearley, A.J., Selverstone, J., Bekker, A., Stachel, T.

“…The chlorine isotope composition of chondrites provides information about isotopic reservoirs that were present in the solar nebula and the effects of…”
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System identification and tracking using a statistical model and a Kalman filter by Soal, K., Govers, Y., Bienert, J., Bekker, A.

“…•Development of a system identification and tracking method to improve the accuracy of modal estimates using a statistical model and a Kalman filter.•A key…”
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Large-scale fluctuations in Precambrian atmospheric and oceanic oxygen levels from the record of U in shales by Partin, C.A., Bekker, A., Planavsky, N.J., Scott, C.T., Gill, B.C., Li, C., Podkovyrov, V., Maslov, A., Konhauser, K.O., Lalonde, S.V., Love, G.D., Poulton, S.W., Lyons, T.W.

“…The atmosphere–ocean system experienced a progressive change from anoxic to more oxidizing conditions through time. This oxidation is traditionally envisaged…”
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Tuberculosis in pregnant women and neonates: A meta-review of current evidence by K J, Snow, A, Bekker, G K, Huang, S M, Graham

“…Pregnant women and their infants are a vulnerable but neglected population in tuberculosis (TB) control efforts. Recent advances in TB prevention, diagnosis…”
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Human responses to wave slamming vibration on a polar supply and research vessel by Omer, H., Bekker, A.

“…A polar supply and research vessel is pre-disposed to wave slamming which has caused complaints among crew and researchers regarding interference with sleep,…”
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Iron formation; the sedimentary product of a complex interplay among mantle, tectonic, oceanic, and biospheric processes by Bekker, Andrey, Slack, John F, Planavsky, Noah, Krapez, Bryan, Hofmann, Axel, Konhauser, Kurt O, Rouxel, Olivier J

“…Iron formations are economically important sedimentary rocks that are most common in Precambrian sedimentary successions. Although many aspects of their origin…”
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The relationship between consumer satisfaction and psychoacoustics of electric vehicle signature sound by Swart, D.J., Bekker, A.

“…The attributes of electric vehicle sound signatures have been investigated, especially considering the sound quality and warning features of the exterior…”
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Uranium in iron formations and the rise of atmospheric oxygen by Partin, C.A., Lalonde, S.V., Planavsky, N.J., Bekker, A., Rouxel, O.J., Lyons, T.W., Konhauser, K.O.

“…The concept of the Great Oxidation Event (GOE), during which atmospheric oxygen rose precipitously and perhaps to near-modern levels around 2.4–2.1billionyears…”
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Suboxic deep seawater in the late Paleoproterozoic: Evidence from hematitic chert and iron formation related to seafloor-hydrothermal sulfide deposits, central Arizona, USA by Slack, J.F., Grenne, T., Bekker, A., Rouxel, O.J., Lindberg, P.A.

“…A current model for the evolution of Proterozoic deep seawater composition involves a change from anoxic sulfide-free to sulfidic conditions 1.8 Ga. In an…”
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Indirect load case estimation for propeller-ice moments from shaft line torque measurements by de Waal, R.J.O., Bekker, A., Heyns, P.S.

“…In order to estimate the forces exerted on ship propellers during ice navigation, the rotational dynamics of the propulsion system need to be accurately…”
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Study of the Stress-Strain State of the System “Thin-Walled Steel Shell – Infill – Soil Base” by Tsimbelman, N. Ya, Bekker, A. T.

“…The paper presents the results of studies aimed at developing a computational modeling methodology for calculating the stress-strain state of hydraulic…”
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Late Ediacaran redox stability and metazoan evolution by Johnston, D.T., Poulton, S.W., Goldberg, T., Sergeev, V.N., Podkovyrov, V., Vorob'eva, N.G., Bekker, A., Knoll, A.H.

“…The Neoproterozoic arrival of animals fundamentally changed Earth's biological and geochemical trajectory. Since the early description of Ediacaran and…”
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Pharmacokinetics of Rifampin, Isoniazid, Pyrazinamide, and Ethambutol in Infants Dosed According to Revised WHO-Recommended Treatment Guidelines by Bekker, A, Schaaf, H S, Draper, H R, van der Laan, L, Murray, S, Wiesner, L, Donald, P R, McIlleron, H M, Hesseling, A C

“…There are limited pharmacokinetic data for use of the first-line antituberculosis drugs during infancy (<12 months of age), when drug disposition may differ…”
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Alternative skew Laplace scale mixtures for modeling data exhibiting high-peaked and heavy-tailed traits by Otto, A. F., Bekker, A., Ferreira, J. T., Arslan, O.

“…The search and construction of appropriate and flexible models for describing and modelling empirical data sets incongruent with normality retains a sustained…”
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