Results 11 to 20 of about 99 (73)
Annex D. Dose coefficients for the embryo/fetus: Radioisotopes of sodium, magnesium, phosphorus, and potassium [PDF]
Annals of the ICRP, 2004 J. Valentin
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Soil solution phosphorus turnover: derivation, interpretation, and insights from a global compilation of isotope exchange kinetic studies [PDF]
Biogeosciences, 2018 The exchange rate of inorganic phosphorus (P) between the soil solution and solid phase, also known as soil solution P turnover, is essential for describing the kinetics of bioavailable P.
J. Helfenstein +3 more
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Autoradiography of Pi Distribution in Barley Seedlings
Bio-Protocol, 2014 Phosphorus-32 and Phosphorus-33 are radioisotopes of phosphorus. These isotopes are used to trace ionic phosphorus and phosphorus compounds. This protocol is used to follow the movement of inorganic phosphate (PO43-) from a leaf tip to the rest of the ...
Satomi Kanno +3 more
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Auto-atténuation de la radiation β dans les sources radioactives épaisses
CHIMIA, 1961 In measuring β-radioactivity of thick sources, one has to take in account the phenomenon of self-weakening in the source. The present paper shows if the choice of the distance between source and counter on one hand, and of the chemical nature of the ...
Pierre Lerch, A. Vogel-Ludin
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Plant Methods, 2017 Background Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of 33P and the isotopic composition of oxygen associated to P (δ18OP) in ...
Verena Pfahler +3 more
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Thinking like a mountain: A land ethical approach to healthcare resource allocation
Bioethics, EarlyView.Abstract Human activity is now having a defining influence on global systems. The Anthropocene epoch requires revisiting our ethical presuppositions to understand our relationship to the earth's life support systems. The Land Ethic of Aldo Leopold proposes an ethic that is diachronic, holistic, and biocentric, in contrast to the synchronic ...
Alistair Wardrope
wiley +1 more source
Phosphate elution from anion‐exchange membranes in soil analysis
Agricultural &Environmental Letters, Volume 10, Issue 1, June 2025.Abstract Resin‐extractable phosphate (PO4‐P) is a widespread sink‐based measure of soil bioavailable phosphorus (P) used in biogeochemistry and soil fertility. However, acid elution of P may hydrolyze organic P and thus compromise measurement of PO4‐P. We evaluated sodium bicarbonate (NaHCO3) as an alternative to sulfuric acid (H2SO4) for PO4‐P elution.
Suwei Xu, Andrew J. Margenot
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Diurnal Regulation of SOS Pathway and Sodium Excretion Underlying Salinity Tolerance of Vigna marina
Plant, Cell &Environment, Volume 48, Issue 6, Page 3925-3938, June 2025.ABSTRACT Vigna marina (Barm.) Merr. is adapted to tropical marine beaches and has an outstanding tolerance to salt stress. Given there are growing demands for cultivating crops in saline soil or with saline water, it is important to understand how halophytic species are adapted to the saline environments.
Yusaku Noda +19 more
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Rapid Communications in Mass Spectrometry, Volume 39, Issue 9, 15 May 2025.ABSTRACT Rationale Understanding the decomposition of inositol hexaphosphate (phytate), the dominant form of organic phosphorus (OP) in soil, is vital for studying phosphorus (P) cycling in terrestrial ecosystems. However, the lack of multiple stable P isotopes complicates the study of phytate dynamics under natural conditions and over long periods ...
V. Sarangi, M. Spohn
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