However, these ancient vicariant scenarios could be confounded by occasional dispersal of minute endogean species, or in lineages where above-ground dispersal of epigean forms preceded the shift to the subterranean environment.
Two facts came to light today which help to explain more of the circumstances preceding the shift of California and Texas from the Garner to the Roosevelt column.
As expected in the time points preceding the shift of the cell culture from G1/G0 to the S phase of the cell cycle, the majority of the cells had been arrested in G1/G0.
Asked if the authority could condone the turnstile jumping that preceded the shift, Charles Seaton, an agency spokesman, said, "I cannot, and I will not".
Finally the shift to carnivory within Cetaceamorpha preceded the loss of limbs that functioned in terrestrial locomotion in this clade.
In addition, individuals with less life-threatening conditions may experience a temporary sense of discomfort or disease preceding a shift to a new subjective state of being [ 27].
The goal of this study was to explore the mechanisms underlying crossmodal spatial attention shifts preceding the presentation of a target.
The 2′-OH on the sugar of the newly inserted dNMP is displaced from its precatalytic position and occupies the precatalytic position of the 3′-OH, causing the phosphate of the newly inserted nucleotide and the sugar of the preceding nucleotide to shift into the minor groove.
This network analysis indicates a shift in the state of nutritionally important metabolites precedes the major shift in transcriptional state going from germination to seedling emergence.
Thus, simple alteration of K+ conductance preceding the surge of inward current can shift the apparent (but not real) range of Nav activation.
The rapid shift in GFP-Dia-ΔDAD localization preceded the general shift in polarity induced by exogenous PI 4,5 P2 treatment in this system (Martin-Belmonte et al., 2007).
