Mostrando 861 - 880 Resultados de 10,216 Para Buscar 'Lawnton~', tiempo de consulta: 3.00s Limitar resultados
  1. 861
    “…We provide a method for quantifying the kinetics of gelation in milk acidified with glucono- [Formula: see text]-lactone (GDL) using image analysis techniques, particle image velocimetry (PIV), differential variance analysis (DVA) and differential dynamic microscopy (DDM). …”
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  2. 862
  3. 863
    “…The autoinducer N-octanoyl-L-Homoserinehomoserine lactone (C8-HSL) serves as a major inter- and intraspecies communicator or ‘signal’, mainly for Gram-negative bacteria. …”
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  4. 864
    “…Herein, we disclose a practical copper-mediated direct intramolecular cyclopropanation of distal olefinic acetate to synthesize cyclopropane-fused γ-lactones and lactams. This cascade reaction is postulated to proceed through a hydrogen atom transfer event induced radical cyclization and copper-mediated cyclopropanation sequence. …”
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  5. 865
  6. 866
    “…As part of this broad sector, there is a small pelagic fishery, which is in the Crucita parish of the Portoviejo canton and is a long-standing and economically very relevant resource for the community. …”
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  7. 867
  8. 868
    “…METHODS: The retrospective study included 520 patients from the Tuzla Canton, treated in the COVID-19 Hospital at University Clinical Center Tuzla in the period from March 27 to October 1, 2020. …”
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  9. 869
  10. 870
    “…Rheological analyses showed a typical solution–sol–gel transition process of OPP with different additions of gluconic acid-δ-lactone (GDL). The gelation time (G(t)) of OPP was significantly shortened from 7424 s to 2286 s. …”
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  11. 871
    “…The aim of this work was to fabricate a new heterogeneous catalyst as zinc ferrite (ZF) supported on gamma-alumina (γ-Al(2)O(3)) for the conversion of cyclic ethers to the corresponding, more valuable lactones, using a solvent-free method and O(2) as an oxidant. …”
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  12. 872
  13. 873
    “…Staphylococcus aureus necrotizing pneumonia is a severe disease caused by S. aureus strains carrying the Panton Valentine leukocidin (PVL) genes (lukS-PV & lukF-PV) encoded on various bacteriophages (such as phiSLT). …”
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  14. 874
    “…METHODOLOGY/PRINCIPAL FINDINGS: To test this hypothesis, we used the sesquiterpene lactone parthenolide, a known anti-cancer agent. Using flow cytometry, and western blotting to label free thiols with Alexa Fluor 633 C(5) maleimide dye and N-(biotinoyl)-N-(iodoacetyl) ethylendiamine (BIAM), respectively, we show that parthenolide decreases the level of free exofacial thiols on Granta mantle lymphoma cells. …”
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  15. 875
    “…This organism strongly quenches the acylhomoserine lactone quorum-sensing signal. The LQQ strain exhibits phenotypic characteristics consistent with its classification in the genus Bacillus. …”
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  16. 876
    “…BACKGROUND: The long chain N-acylhomoserine lactone (AHL) quorum sensing signal molecules released by Pseudomonas aeruginosa have long been known to elicit immunomodulatory effects through a process termed inter-kingdom signaling. …”
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  17. 877
    “…INTRODUCTION: Certain Staphylococcus aureus strains produce Panton-Valentine leukocidin, a toxin that lyses white blood cells causing extensive tissue necrosis and chronic, recurrent or severe infection. …”
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  18. 878
    “…Andrographolide (AND), the diterpene lactone compound, was purified by HPLC from the methanolic fraction of the plant Andrographis paniculata. …”
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  19. 879
  20. 880
    “…Staphylococcus aureus necrotizing pneumonia is a life-threatening disease that is frequently preceded by influenza infection. The S. aureus toxin Panton–Valentine leukocidin (PVL) is most likely causative for necrotizing diseases, but the precise pathogenic mechanisms of PVL and a possible contribution of influenza virus remain to be elucidated. …”
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