For comparison, as a positive control, administration of 50 μM menadione (vitamin K3), which is reported to stimulate large amounts of O2– production, resulted in a higher concentration of quinone methide, reaching 2.04 ± 0.09 μM, ∼4.6 times higher than in endothelial cells after H/R (data not shown).
In patients ventilated for ALI, variations in lung tissue volumes and aeration have been observed following changes of position or administration of positive end-expiratory pressure [ 5, 23, 24, 25].
Let's give him credit for one major initiative that has been on the positive side: the administration's "Open Government Initiative", which was a polar opposite to the Bush era's default condition of secrecy.
Not that Mr. Cheney, who will be looking to shepherd some quick legislative accomplishments through the Congress to give the administration positive momentum, was pushing anything contentious.
Bush campaign strategists don't seem worried that every positive development the administration predicted would happen if we invaded Iraq has soured into the opposite.
"We interpret this as positive," a senior administration official traveling with Ms. Rice told reporters aboard her plane en route to Jerusalem, on condition of anonymity so as not to upstage the secretary of state.
The minister, Manouchehr Mottaki, welcomed as a "positive step" the administration's decision to send a senior American official to participate in international talks with Iran this weekend, and said he expected the talks to make progress.
Turning a seeming negative into a positive, a senior administration official argued that Mr. Barak's predicament "underscored that the prime minister is willing to take the political heat for moving forward".
Michael McKeon, Mr. Pataki's press secretary, said that the Second Avenue subway "has a lot of merit" -- perhaps the most positive statement the administration has made about the project -- and that it would be considered "in the context of the overall budget".
In support of that positive take, the administration cited the agreement on a political process in Geneva to resolve the conflict, investigation of chemical weapons use and $1.5 billion in additional humanitarian support for Syrians.
