nab in Biological News

Penn-Wistar team gains insight into HIV vaccine failure

...cles. The blood samples, which came from individuals with both high and low nab titers and thus varying degrees of pre-existing neutralizing antibodies to ... study. From their current Ad5 assay, the team found no correlation between nab titers at baseline and CD4 T-cell frequency. "Ad-specific CD4 T-cells a...

Dancing 'adatoms' help chemists understand how water molecules split

...irs. These pairs are known as hydroxyls and tend to steal atoms from other molecules, including each other. One of the thieving hydroxyls can then nab the other's hydrogen atom, turning back into a water molecule. The water molecule floats off, leaving behind an adatom. Half the time, that adatom is ...

A human taste for rarity spells disaster for endangered species

... flightless, now-extinct bird that laid only one egg a year--to the brink of extinction. But it was likely scientists and museum collectors anxious to nab an increasingly rare specimen, the authors suggest, that finished the bird off. And trophy hunting collectors have placed increasing pressure on rare ...