Another potential explanation is the creation of a lead-sink in which lead moves freely into placental tissues via up-regulation of metal transport mechanisms [ 26] but is slow to exit into the fetal circulation due to changes in expression of proteins that bind lead.
For that reason, the internal standards are also bound by OM, and a correction by internal standards would not lead to the freely dissolved concentration.
In the SEM analysis, a model that allowed plasma lead to vary freely from whole blood lead explained the variance of cord blood lead (as reflected by a total model R(2); R(2) = 0.79) better than did a model without plasma lead (r(2) = 0.67).
To fail to think freely leads to the holding of absurd beliefs and superstition.
Ablation of the leading edge of a freely moving hemocyte led to no obvious movement of the cell, while after mock ablation the cell continued moving toward the colliding partner.
You got a long lead, you can run freely.
The stock market is no longer rising at a rate that would lead consumers to spend freely.
In his office, Mr. Suciardi said that allowing beggars to operate freely would lead to increased criminality and, eventually, political instability.
In April, he was selected by the local tribes to lead Iraq's first freely formed town council after the fall of Saddam Hussein.
Belarus, Brazil, China, India, Malaysia, Mexico, Nigeria, Tanzania, and beyond everywhere researchers looked, enamel paints with striking levels of lead were being sold freely.,,, As for how this could be, so long after wealthier countries abandoned lead in residential paints, Weinberg says inertia is largely to blame.
