But the real surprise in nature is that human beings exist to observe it, and the real fascination of the Fibonacci series lies in our need to find it.
However, methods do not yet exist to observe, visualize, or model the mesoscale, the intermediate scale of 10 7 10 8 m bridging molecular and cellular biology, in full molecular detail.
The molecular mechanisms of yielding in polymers are less well established than that of dislocation motion in metal crystals, because the microstructure is complex, and no techniques exist to directly observe deformation processes on a scale <10 nm.
However, in studying biological systems, often only incomplete abstracted hypotheses exist to explain observed complex patterning and functions.
ad 4i) We fully agree that some underlying mechanisms must exist to explain observed significant negative correlation between neutrality indices and clonal age (see Figure 8 ).
Our results, therefore, suggest that a number of potential mechanisms relating to hepatic gluconeogenesis exist to explain the hyperglycemia observed in the db/db mouse after exercise.
However, relatively little theoretical work has been done to explain the results observed and few models exist to describe the performance of upper room UVGI systems.
More generally, the method can be used to ask whether bacterial species exist – that is, to observe whether large populations of similar strains invariably fall into well-resolved clusters, or whether in some cases there is a genetic continuum in which clear separation into clusters is not observed.
Having found a sufficient condition under which Silnikov-type homoclinic orbit can exist, we failed to observe any numerical evidences of global bifurcation.
In that case, only universes governed by the Standard Model, or something similar to it, could have the conditions needed for the emergence of physicists capable of observing it.Such arguments shade into philosophy, for even if multiple universes do exist it may be impossible to observe them.
A mechanism therefore exists to explain the observed reduction in p53-driven apoptosis following the addition of PDTC or NAC to 5-FU therapy.
