We investigate the asymmetry of heart rate control system and suggest a simple index to quantify this asymmetry by performing high-dimensional time irreversibility tests to heartbeat interval time series over multiple scales. The results provide strong evidence to the concept that the asymmetry...

Coating carbon nanotubes (CNTs) with peptides can solubilize the nanotubes in water solvent. To explore the utilization of CNTs in solvent and the affinities of CNTs for different peptides, binding free energies of peptides to single-walled carbon nanotubes (SWCNTs) are calculated and analyzed....

Two-dimensional lattice model is employed to analyze the sequence–structure relationships between HP and YhHX protein sequences and compact structures in monomer and homodimer forms. Our results show that most structures are encoded by normal and prion protein sequences, and about one-third of...