Before revision:  In contrast, pair correlations between backbone torsions in stable \alpha helices and \beta strands are dominantly short-ranged, inherently linear, and are associated mainly with harmonic torsional dynamics.
After revision:  In contrast, BTP correlations between backbone torsions in stable \alpha helices and \beta strands are dominantly short-ranged, inherently linear, and are associated mainly with harmonic torsional dynamics.