The products of one have been extensively tested, without any evidence of harm.
The ride, Boulder Dash, was being tested without passengers before the park's opening.
Patients, particularly teenagers, she said, "will be tested without an opportunity for understanding the magnitude of having a positive result".
A three-justice minority argued that a student should not be tested without some evidence of drug or alcohol use.
Placebos are sugar pills, injections or other treatments that resemble the drug that is being tested without having any of the same effects.
If it could be perfected, dozens of vaccine candidates for dozens of pathogens could be tested without having to grow buckets of those pathogens in labs.
To avoid some of the distractions BMW puts between you and the road, order your 330i ($47,390 as tested) without iDrive or active steering.
The Wrangler, which was tested without its optional side air bags, did worst in the side-impact test, for which it got a "poor" rating.
First, studies must be well-controlled, with people randomly assigned to receive a placebo scent or the one really being tested, without knowing which is which.
Mr. O'Neill said none of the nine tested without air bags performed acceptably and all involved serious head injuries to at least one occupant.
Some human rights groups are anxious that pressure could be exerted on people to be tested without help and treatment being available.
