Professor Robert A. Emmons, at the University of California, Davis, who calls himself "the world's leading scientific expert on gratitude," scientifically examined the impact of gratitude.
Of all the medicinal plants in current use, perhaps a fifth have been scientifically examined.
Many people argued that the image, which unlike the Shroud of Turin has never been scientifically examined, could not have been created by human hands -- and therefore was itself proof of the 1648 account.
Until this early Celtic material has been scientifically examined and proved to be true enamel as distinct from inlaid coral, cut stone (chiefly lapis), or coloured glass applied cold, theories about it remain open to question.
The cover decoration materials such as pigments, ink and painted layers were scientifically examined to discover their composition.
A SMART design resembles a traditional randomized controlled trial (RCT) design in that it scientifically examines intervention effects with randomization.
An important challenge for futures research is to scientifically examine the efficiency and significance of such procedures and to integrate the results in the established spectrum of techniques.
The goal is not to systematically survey the market (though this would be a viable area for future investigation), nor is it to scientifically examine the drugs themselves (an important step, but difficult to do at any scale whilst the cost of testing the drugs remains high).
He also viewed the natural world as something to be wondered at rather than scientifically examined.
The petition, which was filed Monday in California, calls for NASA to "closely photograph and thoroughly scientifically examine and investigate a putative biological organism".
