Examlex
A relation is in third normal form if it is in second normal form and there are no functional dependencies between two (or more)non-primary key attributes.
Placebo Effect
A phenomenon where an individual experiences a beneficial effect from an inert treatment or substance because they believe it is active.
Placebo Treatment
A treatment that consists of a harmless pill, medicine, or procedure prescribed more for the psychological benefit to the patient than for any physiological effect.
Blood Pressure
The force exerted by circulating blood on the walls of blood vessels, considered vital for human life and an important indicator of health.
Experimental Group
In an experiment or clinical trial, the group of participants who receive an active treatment.
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