With respect to the following, we add that the hypothesis that heating happened by lightning-like gas discharges is still under serious discussion.
Thomas Givnish, a plant ecologist at the University of Wisconsin, Madison, adds that the hypothesis could be strengthened by "exposing these plants to... emus or ostriches to demonstrate that these traits deter browsing by birds".
Luis Chiappe, a paleontologist and early bird expert at the Natural History Museum of Los Angeles County in California, says that the paper represents a "great start," but he adds that the team's hypothesis that the sense of smell got birds through the K-T mass extinction is "clearly a stretch" because there is no solid evidence to support it.
"The supposed Younger Dryas impact fails on both theoretical and empirical grounds," says Meltzer, who adds that the popular appeal of the hypothesis is probably due to the way that it provides "simple explanations for complex problems".
We detected an association of increasing mean PR for any insulin and for sulfonylureas with the risk of cancer, adding weight to the hypothesis that increased risk of cancer is associated with increased insulin exposure, whether exogenous or stimulated.
Further support is added to the hypothesis that inhaled nitric oxide acts by two distinct mechanisms; one is vasodilation in ventilated lung regions, and the other is vasoconstriction in poorly ventilated or nonventilated lung regions.
Time trends in wild boar contact with ADV were independent of the area's likelihood of contact with pigs, adding evidence to the hypothesis of that AD maintenance in wild boar is independent of the pig situation [ 14, 37, 41].
achilles was smaller than any primate alive today, the team reports online today in Nature, adding support to the hypothesis that the earliest primates were diminutive, shrewlike creatures that fed on calorie-rich insects.
The estimate [44.9; 95% confidence interval (CI), 25.0 64.8] is similar to the that of other asphalt worker studies included in this review, adding support to the hypothesis that risk per unit BaP is higher in this industry than in coke ovens or aluminum production.
Of course, in the above statement we can, alternatively, consider a function (varphi: X to -infty, + infto -inftyadding the hypothesis that it is bounded from below.
