In the latter, creep-fatigue is considered to be one of the most essential driving force for crack propagation at high operating temperature exceeding 500 °C.
Consequently, TSCs could be an essential driving force of pediatric brain tumors and a dispensable element of adult ones.
It was reported that oxidative stress could contribute to the selection of resistant bacterial strains, since reactive oxygen species (ROS) revealed to be an essential driving force.
Hence, exploration at the NMDA-event level is only of minor importance for the bCR-rule, where the essential driving force for plasticity is the somatic exploration entering through the factor tanh ( 1 2 γ Y ).
The emergence of novel gene functions is an essential driving force behind the evolution of species.
Aberrant EGFR activation is an important factor in tumorigenesis and an essential driving force for aggressive growth behaviour (Herbst and Shin, 2002).
Nevertheless, our analysis showed that only 4.3% of all the divergent gene pairs were tandem duplicates, suggesting that tandem duplication might not be the essential driving force.
None of the other patient characteristics was predictive of higher levels of IL-6, HsPCR and D-dimers in our cohort, except for a lower current and cumulative CD4 cell count for IL-6, which would seem to suggest, according to other studies [ 45], that immune-depression is an essential driving force for inflamm-aging in HIV positive patients.
The pulsed contraction of the AS cells has been revealed as an essential driving force for the process while the lateral epidermis constrains closure (Kiehart et al., 2000; Hutson et al., 2003; Franke et al., 2005; Scuderi and Letsou, 2005; Fernandez et al., 2007; Gorfinkiel et al., 2009; Solon et al., 2009; Blanchard et al., 2010; David et al., 2010).
These costs are essential as driving forces behind coevolutionary arms races between parasites and their hosts [10].
