A corneal ulcer is an open sore or wound on the cornea — the transparent, dome-shaped surface that covers the front of the eye and focuses light into it. Often beginning as keratitis ...

A student shared a photo from his Sindh Board biology textbook, revealing that the illustration meant to show a microscope was, in fact, a picture of a LEGO model—not an actual scientific ...

Persistent Link: https://ieeexplore.ieee.org/servlet/opac?punumber=5288520 ...