Though necessary, this type of evaluation, which focuses on a direct cause-effect approach, falls short when environmental issues have to be addressed, for the homeostasis of the ecosystem is guaranteed by non-linear transformations.
The new study found only an association, not a direct cause-effect link.
Although this set of experiments indicated a marked preference of Bcr/Abl for Erk2 activation and a correlation with IM resistance, they did not allow us to conclude a direct cause-effect mechanism yet.
However, a direct cause-effect between valganciclovir and higher risk of infectious diseases is yet to be demonstrated in future studies, in which underreporting could be avoided by the systematic collection of all post-transplant infectious diseases.
It has been argued that symbionts contribute to the metabolism of C. tuberculata and, owing to the recent eutrophication of the lagoon, there is a direct cause-effect connection between the increased input of nutrients and the outbreaks of C. tuberculata in Mar Menor [29].
While it is difficult to provide a direct cause-effect relationship between neurogenesis and learning and memory, as mentioned previously, many studies point to an association between the production of new hippocampal neurons and hippocampal-dependent cognitive processes [29], [30], [78], [79], [80].
However, this still remains speculative, and we have no evidence of a direct cause-effect relationship between TE transposition or recombination and speciation.
Specifically, finding a strong statistical correlation between a given metabolic route and productivity does not translate into a direct cause-effect relationship.
Although the sigma PCBs-P4 relationship in female polar bears with offspring is not evidence per se of a direct cause-effect association, the results indicate that PCBs may affect levels of P4 in polar bear females.
However, further long-term and interventional studies with larger sample sizes are warranted, to give a direct cause-effect relationship between resistin and chronic periodontitis and to determine the exact molecular mechanism involved in increased insulin resistance.
"Gore talked about 2005 and 2004 being very strong seasons, and if you weren't paying attention, you could be left with the impression that there was a direct cause and effect, but he was very careful to not say there's a direct correlation," Schmidt said.
