"It's extremely tentative out there," said Hugh Johnson, chief investment officer at First Albany.
Speaking at the National Press Club in Washington DC last week, Nasa administrator, Charles Bolden, listed the moon, near Earth asteroids and Mars as future destinations, but what plans exist are extremely tentative.
It shows the eurozone's recovery is extremely tentative.
This final stage can potentially be broken down into a further four stages (δ1– δ4), all of which maintain the same adult morphology; however, as each potential instar is represented by only a single Strobilopterus proteus specimen, their identification at this time is extremely tentative.
No adult eurypterids are found in immediate association, although the large hardieopterid Hallipterus excelsior (Hall, 1884) is known from the same formation and may yet prove to be conspecific, although it is known only from its carapace and any suggested affinities are extremely tentative.
Many environmental groups called on Clinton to recuse herself from the Keystone XL pipeline decision, noting that her tentative nod of approval was extremely premature.
Locations and orientations of rRNA genes were mapped by alignment with rRNA genes from the same collection of chelicerate taxa, although the beginnings and endings of these genes were simply based on the limits of neighboring genes and so must be considered extremely tentative.
Thus, a basal radiation of the Procellariiformes in the Eocene at least (as with many modern orders of birds) seems likely, especially given that significant anomalies in molecular evolution rates and patterns have been discovered in the entire family (see also Leach's storm petrel), and molecular dates must be considered extremely tentative.
Even though this deep phylogenetic analysis is extremely challenging and should be treated as tentative the sheer number and diversity of these new viruses suggest that the arthropods may have been important in viral evolution.
The model where gains and losses were constrained to be equal produced an extremely tentative estimate of one transition (either gain or loss) every 500 MY, with 2 log likelihood support limits (equivalent to 95% confidence intervals) between once every 100 MY and 0 (never).
