3291625 PNRs polar nanoregions 64 3291615 PNRs phosphorene nanoribbons 29 3291623 PNRs potential nitrification rates 11 3291612 PNRs plasmonic nanoresonators 2 3291621 PNRs porous nanorods 2 3291628 PNRs d,l-peptide nanorings 1 3291629 PNRs parental reactions to children's negative emotions 1 3291627 PNRs patient-to-nurse ratios 1 3291617 PNRs pelvic non-responders 1 3291618 PNRs pentanucleotide repeats 1 3291614 PNRs peptide nanoribbons 1 3291616 PNRs placebo non-responders 1 3291613 PNRs plasmonic nanorulers 1 3291626 PNRs polar nanoscale regions 1 3291622 PNRs positive signal-to-negative background ratios 1 3291630 PNRs PPy nanorods 1 3291624 PNRs primary non-responders 1 3291619 PNRs primitive neonatal reflexes 1 3291620 PNRs private nature reserves 1