Here, we conducted in vitro genotoxicity tests to evaluate the genotoxicity of styrene oligomers extracted from polystyrene intended for use in contact with food.Styrene oligomers were extracted with acetone and the extract was subjected to the Ames test (OECD test guideline No.471) and the in vitro chromosomal aberration test (OECD test guideline
Paper-based examinations are gradually being replaced as a reasonable number of Eswatini Higher Education Institutions (HEIs) have adopted online examinations.As a new phenomenon, the perspectives of both academic staff and learners had to be assessed.Hence, this study sought to assess the use of online examinations in the Kingdom of Eswatini HEIs.
Quadcopters are widely used in military and civilian applications, but when flying near moving objects, they may encounter flight instability.This study investigates the flow aerodynamic interference of two drones' propellers when they hover near moving obstacles using CFD simulations.An unstructured mesh is used with frame motion to model t
This study uses the literature review method through journals and supporting reports that are related to this study and explained descriptively through data obtained from journals or reports.The findings generated in this study are corruption cases involving Detergent Drawer Front regional heads in East Kutai and their ranks are inseparable from th