Wouter Wanders

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Oxidation of high-strength ammonium wastewater can lead to exceptionally high nitrite concentrations; therefore, the effect of high nitrite concentration (> 400 mM) was studied using an ammonium-oxidizing enrichment culture in a batch reactor. Ammonium was fed to the reactor in portions of 40-150 mM until ammonium oxidation rates decreased and finally(More)
To assess the extent of genotypic and phenotypic diversity within species of purple nonsulfur bacteria found in aquatic sediments, a total of 128 strains were directly isolated from agar plates that had been inoculated with sediment samples from Haren and De Biesbosch in The Netherlands. All isolates were initially characterized by BOX-PCR genomic DNA(More)
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OBJECTIVE To determine the vision-related quality of life (VR-QOL) after surgery for macula-off rhegmatogenous retinal detachment (RRD) in relation to visual acuity, contrast acuity, and color vision. METHODS In a prospective observational study, we included 55 patients with a macula-off RRD. Best corrected visual acuity (BCVA), color vision (saturated(More)
PURPOSE To determine the extent to which stereoscopic depth perception influences the performance of tasks executed under an operating microscope. SETTING Laboratory of Experimental Ophthalmology, University Medical Center Groningen, the Netherlands. DESIGN Experimental study. METHODS Medical students were assigned (on the basis of their stereoacuity)(More)
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