I believe the answer is: double blind procedures
double blind procedures refers to a form of study in which both participants and the researchers do not know which subjects are receiving the treatment. The purpose of double blind procedures is to prevent the bias held by the experimenters along with placebo effects.
Some people would argue that the main driver of tensions in the Arab-Israeli conflict in the Middle East is land, the right to be independent and recognized and religion. The real chief driver of the tensions is actually difficult to determine, but these factors definitely play an important role.
Since he never had an accident during the period, the premiums he paid were Expired
When you buy a premium from an insurance company, they will give you some sets of clauses which gives the condition within a specified period of time for the insurance to be paid.
If the none of the clauses were met during the period, your premium will expire , unless you renew it with your insurance company
A resource becomes more valuable as it becomes more scarce.
