This cannot be explained by recent intermarriage, since this lineage appears to have originated in America in pre-Columbian times.
This cannot be explained by hesitation to imitate an art simply because it appeared so great, for artists such as Raphael were considered equally great but were used as sources to a much greater degree.
On recorded IQ tests, he says, African Americans have persistently lagged behind [pdf] most other ethnicities in America [pdf] (including, according to some commentators, black immigrants from, for example, the Caribbean) and this cannot be explained by the Flynn effect since, as he puts it, "blacks don't live in a time warp".
This cannot be explained solely by differences in compressibility and remains an open question.
This cannot be explained by differences in time available, nutrition, or work effort.
This cannot be explained by simple alterations in the genetic code, but suggests epigenetic changes at target molecules.
This cannot be explained by Equation 7 since the calculated values are close with each other at different mass concentrations.
As this cannot be explained by a build up of photoinhibition during the day this is a novel observation made here with the Velloziaceae.
This cannot be explained by depletion of MAAs in their diets, and hence other UV-protective strategies may be more important.
This cannot be explained by major differences in dissolved Si levels between HA-free and HA-containing clay systems (Fig. 1c).
This cannot be explained by receptor binding or internalisation behaviour which was comparable for both compounds, therefore probably related to the differences in pharmacokinetics by introducing another bifunctional chelator.
