Results 11 to 20 of about 224,948 (306)
Cahiers Agricultures, 2023 La dégradation de la fertilité des sols est un problème majeur en Afrique subsaharienne. La forte croissance démographique, la demande locale de nourriture et la réduction des terres arables disponibles risquent d’accroître ce phénomène.
Ramarovahoaka Noelly +9 more
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Preparation of 134Cs sealed source based on WO3 adsorbent for radiometric calibration purposes [PDF]
Egyptian Journal of Pure and Applied Science, 2021 Cesium-134 artylon sealed source based on inorganic adsorbent (as a core) was easily prepared. The sealed source was in the form of a disk constituted of two halves; base and top.
Ahmed El-Gharbawy +3 more
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The Isotopes of Americium [PDF]
Physical Review, 1950 Three new americium activities (Am{sup 238}?, Am{sup 243}, and Am{sup 244?}, the latter two formed by n,{gamma} reactions) are described and some additional information is given on previously reported americium isotopes.
Street, K., Ghiroso, A., Seaborg, G. T.
openaire +7 more sources
Development of lowenergy accelerator-based production of medical isotopes [PDF]
, 2013 Here we present methods for production of new and existing isotopes for SPECT (Single Photon Emission Computed Tomography) and PET (Positron Emission Tomography) imaging using accelerator-based systems.
Beasley, P. +3 more
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Oxygen isotopes and lakes [PDF]
, 2014 Isotopes are variations of a particular chemical element. It is all to do with the number of neutrons. Oxygen has two main isotopes: 18O which has 10 neutrons and 8 protons; and 16O which has 8 neutrons and 8 protons.
Dean, Jonathan, Leng, Melanie
core +3 more sources
Isotopes and the bones and teeth of King Richard III [PDF]
, 2015 Professor Jane Evans and Dr Angela Lamb work in the NERC Isotope Geosciences Facilities (NIGF) at the BGS in Keyworth. NIGF is one of the largest isotope laboratories in Europe for studying naturally occurring isotopes.
Pennington, Catherine
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Marker Assisted Selection for Bacterial Leaf Blight Rice Mutant Lines Resistant
Indonesian Journal of Biotechnology, 2015 Induction of mutation using gamma rays for improving of Mira-1 rice variety has been conducted. Rice mutant lines M2 generation have been obtained from mutation by the doses of 25, 50, 75, 100, 150 and 200 Gy of gamma rays.
A. Aryanti +3 more
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Plant Production Science, 2021 Phosphorus (P) deficiency is a major yield constraint for lowland rice production in the tropics. As P-fertilizer resources are finite, alternative fertilizer management is needed for sustainable rice production. We examined whether farmyard manure (FYM),
Hidetoshi Asai +8 more
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Identification of Heading Date Six (Hd6) Gene Derived from Rice Mutant Varieties
Biosaintifika: Journal of Biology & Biology Education, 2017 Genes which were associated with flowering time to indicate the early maturity is known as heading date (Hd). Heading date six (Hd6) gene was identified from rice mutant varieties were Atomita 2, Atomita 3, Atomita 4, Bestari, Cilosari, Diah Suci ...
Aryanti Aryanti +2 more
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Journal of Agriculture and Rural Development in the Tropics and Subtropics, 2020 Sequestration of soil organic carbon (SOC) in agricultural systems is a key indicator of soil fertility improvement and climate change mitigation at the global scale.
Narindra Harisoa Rakotovao +5 more
doaj +1 more source