Diagnostic markers are biological parameters that aid the diagnosis of diseases. Examples include the presence of particular genetic variants and the levels of particular proteins in body fluids.

Julia Jonas, a 50-year-old National Senior Certificate (NSC) matric examination paper marker, passed away on December 3, following a tragic incident at the Alberton Marking Centre. According to th ...

Erasable pen ink is a thermochromic material that doesn’t get removed from paper when erased like graphite from a pencil. Instead the heat from the friction of erasing causes it to become ...