Researchers have discovered that newborns have high levels of the tau protein, which is elevated in older people with Alzheimer’s disease, but that it causes them no harm. The discovery opens ...

Photoluminescence lifetime imaging of upconverting nanoparticles (UCNPs) is useful for optical thermometry but has not yet been implemented in wide-field temperature sensing in a single exposure. To ...

Intense photostimulated luminescence (PSL) is observed, for the first time, in X-ray-irradiated KBr:Eu and KCl/sub x/Br/sub 1-x/Eu phosphor ceramics. The peak in the stimulation spectrum for the PSL ...