Canada thistle should be removed from high quality natural areas when it is first observed since it is very tenacious and difficult to control once established.
Active for millennia, Mount Redoubt has erupted four times since it was first observed: in 1902, 1966, 1989 and 2009, with two questionable eruptions in 1881 and 1933.
Scan samples document the behavior of each animal when it is first observed [59].
Dr. Brown said Sedna "is so far away from everything that it must be the first observed member of the long-hypothesized Oort Cloud, a sphere of comets out to halfway the distance to the nearest star".
Later it was found that 289Fl have different decay properties and that the first observed flerovium atom may have been its nuclear isomer 289mFl.
Ione was the first tropical cyclone to be observed on the Cape Hatteras radar during landfall and was one of the first observed to make small-scale oscillations within its track.
To report a protein as containing a signal peptide, we started with proteins where the first observed peptide was not tryptic on its n-terminus, and was within 15-50 acids acids of the predicted start site [ 16].
The first observed specimen was swimming; it may have fled from human activity on the shore.
In 1986, the same year a federal holiday honoring King was first observed, Arizona's House of Representatives voted down a measure observing the holiday (the state Senate passed the bill).
The first observed eclipse of Epsilon Aurigae occurred in 1821, though its variable status was not confirmed until the eclipse of 1847 1848.
