Finding deca-BDE--the form used in the greatest quantities commercially--was especially surprising, de Wit says, as biologists had thought it too cumbersome to cross cell membranes.
Many therapies, such as modified genes and some novel drugs, are too cumbersome to cross cell membranes and do their job.
The next day, we crossed into Israel via the Allenby Bridge, which was definitely a more cumbersome border crossing, mostly because a metal turtle souvenir I bought in Petra (don't ask) looked suspicious when my luggage was screened.
I'll confess that I've come pretty close on numerous occasions to accidentally snapping a card in half after forgetting that I'd left it in the computer, but the word cumbersome never crossed my mind.
A comparison of all relaxation curves on a single plot proved quite cumbersome, with curves crossing one another at different points due to the different mechanisms with which each compound may constrain water.
He recalls the moment when the cumbersome vehicles used to cross the ice encountered an expanse, riddled with fractures.
In these cases the parents displayed a reduced phenotypic difference, which may make the phenotyping and the stringency of selection in the next cross more cumbersome.
It is worthwhile to mention that it was a laborious and cumbersome task to obtain such cross-sectional images from these samples.
The use of a cross-purchase agreement can become cumbersome if there are a large number of shareholders.
In any case, it is all for one and one for all once "Heyday" finishes the cumbersome job of tossing together its principals for a cross-country American journey.
