Lack of microbial contamination is crucial for drinking water quality and safety. Chlorine-resistant bacteria in drinking water distribution systems pose a threat to drinking water quality. A bacterium was isolated from an urban water supply network in northern China and identified as Pseudomonas peli by 16S rDNA gene analysis. This P. peli strain had high chlorine tolerance. The CT value (the product of disinfectant concentration and contact time) to achieve 3 lg unit (i.e. 99.9%)-inactivation of this P. peli isolate was 51.26-90.36 mg min/L, inversely proportional to the free chlorine concentration. Chlorine dioxide could inactivate the bacterium faster and more efficiently than free chlorine, as shown by flow cytometry. Thiazole orange plus propidium iodide staining indicated that free chlorine and chlorine dioxide inactivated P. peli primarily by disrupting the integrity and permeability of the cell membrane. The P. peli was also sensitive to ultraviolet (UV) radiation; a UV dose of 40 mJ/cm2 achieved 4 lg unit (99.99%)-inactivation. The Hom model was more suitable for analyzing the disinfection kinetics of P. peli than the Chick and Chick-Watson models.
My son post TBI went private and was issued peli prism lens glasses at York VisonCare. Last week we had his second visit to Spessavers . Quick update. See results below from Jan (no peli lens) to April current situation) for Esterman field vision DVLA private tests
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Hi there, he forgets because he sees perfectly well with 20/20 vision, it was only picked up on the field vision test, he wasn't aware before this, due to some amazing Neuroplasticity and how his miraculous young brain quickly recovered and 're-mapped'. He has astounded the Neuro and Ophthalmology with his recovery. In the real world not the Esterman space helmet, when he stares for over 5 seconds+ the blind spot is a slight blur but he sees movement through it, e.g if a person there their jumper is a bit blurry but can see the movement. The Esterman test which is the only DVLA vision test recommended doesn't allow for this, it is small flashing dots on a white background, even his Ophthalmologist says developments are underway with new assessments in the pipeline and the current tests are old school and the 'real world' needs to be introduced. Simulators and driving assessments are a must e24fc04721
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