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Mostrando 741 - 760 Resultados de 1,902 Para Buscar '"sulphur"', tiempo de consulta: 0.18s Limitar resultados
  1. 741
    “…The spectrum > 520 nm was similar to that with an integrating sphere with the purple non-sulphur bacterium. This system produced superior results to those obtained using a recently reported method, the application of the diffusing agent, Scotch™ Magic tape, to the side of the cuvette. …”
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    A dual compartment cuvette system for correcting scattering in whole-cell absorbance spectroscopy of photosynthetic microorganisms
  2. 742
    “…METHODS: Grey selenium and sublimed sulphur were thermalized in PEG-200 and isothermally recrystallised to composite nanoparticles (Nano-Se@S). …”
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    Turning gray selenium and sublimed sulfur into a nanocomposite to accelerate tissue regeneration by isothermal recrystallization
  3. 743
    por Sabate Gilarte, Marta
    Publicado 2020
    “…. $^{33}$S is a stable isotope of sulphur of interest in Neutron Capture Therapy for treating superficial tumours. …”
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    The n_TOF-EAR2 facility at CERN: neutron flux determination and $^{33}$S(n,$\alpha$)$^{30}$Si cross section measurement; implications in BNCT.
  4. 744
    “…We report for the first time that this peculiar intracluster modification does not seem to proceed via metal–sulphur bond breaking and follows a first-order rate law, being therefore a process independent from the well-described collisional ligand exchange.…”
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    Intracluster ligand rearrangement: an NMR-based thermodynamic study
  5. 745
    “…However, it can be easily distinguished by its elongated rhizome (vs. compact), trifoliolate leaves (vs. five leaflets, sometimes trifoliolate), pale pink or purplish-red inner sepals with 6–8 × 2–3 mm (vs. pale sulphur-yellow, ca. 11 × 4 mm).…”
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    Epimediumlongnanense (Berberidaceae), a new species from Gansu, China
  6. 746
    “…The IR spectral data suggest the involvement of sulphur and azomethane nitrogen in coordination to the central metal ion. …”
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    Synthesis, Spectroscopic, and Antimicrobial Studies on Bivalent Nickel and Copper Complexes of Bis(thiosemicrbazone)
  7. 747
    “…Based on crystallographic evidence, the molecules feature linear gold(1) geometries defined by sulphur and phosphorus donors. The complexes, along with a series of known anti-cancer agents, have been screened against a panel of seven human cancer cell lines. …”
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    Cytotoxicity Profiles for a Series of Triorganophosphinegold(I) Dithiocarbamates and Triorganophosphinegold(I) Xanthates
  8. 748
    “…Selenium is an essential element with remarkable chemical properties. The similarity to sulphur results in a number of chemical interactions mainly connected to thiols and redox processes. …”
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    Selenium in the prevention of human cancers
  9. 749
    “…Subsequent lymphoscintigraphy using Tc-99m sulphur colloid revealed obstructed lymphatic drainage in the right upper limb.…”
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    Extraosseous Tc-99m methylene diphosphonate concentration in the forearm following post-mastectomy lymphatic obstruction
  10. 750
    por Pazik, Agnieszka, Skwierawska, Anna
    Publicado 2012
    “…Syntheses of N,N′-phenyltetrazole podands link with aliphatic chains containing oxygen, nitrogen and sulphur atoms, are described. The complexing properties of these compounds towards metal cations (Fe(2+), Cu(2+), Zn(2+), Co(2+), Ni(2+)) were investigated by absorption and infrared spectroscopy. …”
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    Synthesis and spectroscopic properties of new bis-tetrazoles
  11. 751
    por Williams, Kirryn, Simpson, Graham
    Publicado 2017
    “…A 99 m technetium‐labelled sulphur colloid scan when used with single photon emission computed tomography/computed tomography (SPECT/CT) is highly specific for splenic tissue and more readily available and time efficient than other modalities used for this purpose. …”
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    Thoracic splenosis: diagnosis without invasive investigations
  12. 752
    “…In the first step, tetragonal CuInS(2) was prepared from copper, indium and sulphur precursors. The obtained CuInS(2) was further co-milled with zinc acetate dihydrate and sodium sulphide nonahydrate as precursors for cubic ZnS. …”
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    Mechanochemical Synthesis and Characterization of CuInS(2)/ZnS Nanocrystals
  13. 753
    “…In comparison to the undoped carbon nanomaterials, heteroatoms such as nitrogen-, sulphur-, boron-, phosphorous-, etc., incorporated nanomaterials have become well-accepted as potential electrocatalysts in water splitting, supercapacitors and dye-sensitized solar cells. …”
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    Heteroatom-Doped Metal-Free Carbon Nanomaterials as Potential Electrocatalysts
  14. 754
    “…Two stochastic biosensors, based on the immobilization of α-hemolysin and hemin in exfoliated reduced graphene modified with nitrogen and sulphur, were proposed for the enantioanalysis of aspartic acid in biological samples (whole blood, urine, saliva, and tissue). …”
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    Stochastic biosensors based on N- and S-doped graphene for the enantioanalysis of aspartic acid in biological samples
  15. 755
    “…These results suggest the development of new catalysts made from widely available natural minerals that show high stability and can operate in natural light to produce fuel oils with ultra-low sulphur content.…”
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    Heterostructure of vanadium pentoxide and mesoporous SBA-15 derived from natural halloysite for highly efficient photocatalytic oxidative desulphurisation
  16. 756
    “…Since the counts of the sulphur-K peak in the X-ray emission data are significantly higher for Bi(2)Te(2)S compared to Bi(2)Te(3), the segmentation methodology exploits this variation and enables successful phase discrimination via post-processing the image of the elemental map.…”
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    Assessing phase discrimination via the segmentation of an elemental energy dispersive X-ray spectroscopy map: a case study of Bi(2)Te(3) and Bi(2)Te(2)S
  17. 757
    “…We propose that the high levels of n-doping in the constituent layers due to sulphur vacancies and defects give rise to an enhanced transition rate of electrons from the k valley of WS(2) to the k′ valley of MoS(2), which leads to the emission, counter polarized to the excitation. …”
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    Anomalously polarised emission from a MoS(2)/WS(2) heterostructure
  18. 758
    “…Lysine was the most limiting amino acid (only 50% met the recommendations every day) followed by the sulphur-containing amino acids (recommendations met by 67.5%), leucine and valine (recommendations met by 70%). …”
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    Protein content and amino acid composition in the diet of Danish vegans: a cross-sectional study
  19. 759
    “…The presence of LcS in the oral cavity was investigated using a novel selective medium, ‘LcS Select’. Portable sulphur monitors Halimeter(®) and OralChroma(TM) were used to measure levels of VSCs in morning breath. …”
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    The effect of a commercial probiotic drink containing Lactobacillus casei strain Shirota on oral health in healthy dentate people
  20. 760
    “…Methods included respiration chambers, the sulphur hexafluoride (SF(6)) tracer technique, breath sampling during milking or feeding, the GreenFeed system, and the laser methane detector. …”
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    Comparison of Methods to Measure Methane for Use in Genetic Evaluation of Dairy Cattle
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