Publications by authors named "S M Wahl"
Microbes experience dynamic conditions in natural habitats as well as in engineered environments, such as large-scale bioreactors, which exhibit increased mixing times and inhomogeneities. While single perturbations have been studied for several organisms and substrates, the impact of recurring short-term perturbations remains largely unknown. In this study, we investigated the response of Saccharomyces cerevisiae to repetitive gradients of four different sugars: glucose, fructose, sucrose, and maltose.
View Article and Find Full Text PDFPurpose: To analyze the clinical outcome of organ-cultured endothelium-outward preloaded DMEK (pDMEK) using the RAPID cartridge.
Methods: This prospective study included 80 eyes of 80 patients who received a pDMEK. Best-corrected visual acuity (BCVA), endothelial cell count (ECC), and central corneal thickness were measured preoperatively and 4 to 6 weeks, 3 months, 6 months, and 1 year postoperatively.
Introduction: The incidence and prevalence of infections with non-tuberculous mycobacteria such as (Mav) are increasing. Prolonged drug regimens, inherent antibiotic resistance, and low cure rates underscore the need for improved treatment, which may be achieved by combining standard chemotherapy with drugs targeting the host immune system. Here, we examined if the diabetes type 2 drug metformin could improve Mav-infection.
View Article and Find Full Text PDFPurpose: The postoperative occurrence of corneal guttae (CG) in patients after Descemet membrane endothelial keratoplasty (DMEK) can lead to a significant reduction in visual acuity (VA) with the subsequent need for repeat DMEK. Therefore, the aim of this study was to analyze the prevalence and clinical significance of CG in transplanted corneas after DMEK.
Methods: The prevalence and progression of CG after DMEK of 1657 patients were examined using endothelial specular microscopy images.
Article Synopsis
- Humans struggle to see low-contrast objects during sudden changes in brightness, putting them at risk until their vision adapts.
- A virtual reality simulation was developed to study how people detect low-contrast stimuli under different lighting conditions.
- Results showed faster detection times when using self-tinting lenses during brightness decreases, indicating potential benefits for designing visual aids.