Mostrando 521 - 540 Resultados de 1,902 Para Buscar '"sulphur"', tiempo de consulta: 0.11s Limitar resultados
  1. 521
    por Marine, David
    Publicado 1914
    “…Many factors other than the amount of parathyroid tissue removed influence the onset of tetany, among which are age, pregnancy, lactation, rachitis, the administration of sulphur, and diet. Pregnancy and lactation tetany in dogs resembles in all essentials parathyroid tetany. …”
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  2. 522
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  8. 528
    “…This contrasts with the regulation of sulphur metabolism in higher plants, which generally involves up-regulation of several sulphur assimilatory enzymes. …”
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  9. 529
    “…Under the optimized conditions (oxidant to sulphur ratio = 25, oil to acetonitrile ratio = 1, and temperature = 60 °C), a sulphur removal rate of 99.3% was observed (initial sulphur concentration = 50 ppm). …”
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  10. 530
    “…The Mo-nitrogenase catalyses the ambient reduction of N(2) to NH(3) at the M-cluster, a complex cofactor that comprises two metal-sulphur partial cubanes ligated by an interstitial carbide and three belt-sulphurs. …”
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  11. 531
    por Dębek, Cezary
    Publicado 2019
    “…Due to its high total sulphur content and other unfavourable properties, pyrolytic oil obtained as a result of tyres pyrolysis is not suitable for use as motor or heating fuel. …”
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  12. 532
  13. 533
    “…Modification of a digestate through the addition of a biochar and sulphur source is less well-known. This pot experiment aimed at comparing the short- and long-time fertilization effects of a digestate enriched with biochar, with elemental sulphur, or with a combination of both on soil health and plant biomass. …”
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  14. 534
    por Ray, Sujay, Bagchi, Angshuman
    Publicado 2016
    “…Redox reaction of inorganic sulphur compound is very essential to maintain a global sulphur cycle. …”
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  15. 535
    por Hou, Jianing
    Publicado 2023
    “…Sulphur dioxide emissions per unit of economic growth along the southeast coast were 379. 048 tons, which was well below the overall average of 444.573 tons. …”
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  16. 536
    “…To facilitate the rational design of sulphur amino acid-producing strains, the pathway for assimilatory sulphate reduction providing the necessary reduced sulfur moieties has to be known. …”
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  17. 537
    “…Vapor cavities formed in the cavitating device are then collapsed which generate (in-situ) oxidizing species which react with the sulphur moiety resulting in the removal of sulphur from the organic phase. …”
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  18. 538
    “…The significant linear relationship with Cu, Zn and sulphur let us assume that metallothioneins, which are sulphur-rich proteins, are increased too. …”
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  19. 539
    “…The many oxidation states of sulphur are found in numerous sulphur species with distinct functional groups (thiols, disulphides, polysulphides, sulphenic, sulphinic and sulphonic acids, etc.), which participate in a complicated network of sulphur-based redox events. …”
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  20. 540
    “…Mass spectrometric and electronic structure calculations show that sulphur dioxide is oxidised through a common intermediate to the hydrogen sulphate anion, sulphur trioxide, and sulphur trioxide anion as primary products through formal HO(2)(−), oxygen atom, and oxygen ion transfers. …”
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