In the us constitution the principle separation of powers is

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 is one property that water and oil do not share

According to the aztec history, how did the aztecs know where to build their new city of tenochtitlan? why was this a good location?