What do this quote mean "the whole world was caught up in a nightmare"

The procedures for reporting potential unanticipated problems involving risk to subjects or others to the irb are: stated in the human subject protection regulations, but not in the drug or device regulationsincluded in the consent processdetermined by research staffdetermined by the institution in its written policies and procedures

What greek scientist created a screw to move water for irrigation?

Which college is best for study in nepal