The association was felt to be sufficiently conclusive for UV light from sunbeds to be formally classified as a human carcinogen [28,32]; unfortunately, despite this evidence and consequent public health warnings, sunbed tanning remains popular.
At the same time, Mr. Obama made an undisclosed move that proved more conclusive: He gave a green light to Mr. Biden to pursue a parallel line of communication with Mr. McConnell.
The British historian Robert Service writes, in his 2004 biography of the dictator, "Whether Stalin really intended the universal deportation of Jews in the early 1950s remains unknown, though this is widely treated as a fact; and no conclusive proof has come to light".
It was probably built in about 1670, and has been attributed to Bernard "Father" Smith, but "no conclusive evidence has come to light either to substantiate or to dismiss this theory".
The other task, where animals had to choose between the boxes illuminated by blue and UVA light, were less conclusive.
If conclusive evidence of rigging comes to light, will any parliamentary seats change hands?
There is little conclusive data to support this conclusion and this study aims to shed light with regard to this issue.
However, all metrics of comparison between hybrid and light lines were not statistically conclusive, primarily because birds could access baited hooks in areas beyond the protection afforded by bird-scaring lines (aft and to port of their aerial extent).
"It is a very suggestive result, but by no means conclusive," says Charbonneau, who had searched for reflected light from the same planet but failed to see it.
"This is one of the most conclusive, compelling examples that's been brought to light about toxic algae affecting mammals," says JoAnn Burkholder, a marine ecologist at North Carolina State University in Raleigh.
