Publications by authors named "Lyndon Letwin"
Article Synopsis
- * A cross-sectional study conducted during 2020-2021 surveyed 74 learners to assess wellness, using established burnout and resilience scales, finding that online learners reported significantly more burnout despite similar scores in resilience, mindfulness, and self-compassion compared to in-person learners.
- * The study concludes that increased virtual learning may contribute to burnout, highlighting the need for further research on the causes of this burnout and potential protective factors that could help students cope with virtual education.
Objective: Lichens are emerging as a promising natural source of bioactivities of pharmaceutical interest. The present study aims to contribute to the knowledge of the lichen Umbilicaria muhlenbergii as a potential source of pharmaceutically relevant anticancer and antibiotic lichen chemicals.
Methods: The crude acetone extract of U.
Background: Lichens provide a large array of compounds with the potential for pharmaceutical development. In the present study, extracts from three previously undescribed North American lichen species were examined for antioxidant, antibacterial and anticancer activities.
Results: The results from this study demonstrated the following: (i) Acarospora socialis ethanol extract exhibited significant DPPH antioxidant scavenging activities, which were concentration dependent; (ii) acetone and ethyl acetate extracts of Xanthoparmelia mexicana inhibited Gram-positive bacteria but had no effect on Gram-negative bacteria; X.