Requiring manufacturers to equip large-scale gamma systems with extra shielding on the radiation sources and setting operational protocols are examples of what?

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk

Ato z on the bun timeline show where the events listed a through g board blow fit on the timeline

Why is mary salter ainsworth a central figure in psychology?