We consider a two-letter self-avoiding lattice heteropolymer model of NH (out of N) attracting sites. At zero temperature, chain size scales as N1/dF (ρH = NH/N) with novel universal exponents describing asymptopia (d is space dimension). The phase diagram includes a new multicritical point at ρH < 1 where a line of collapse critical points ends at a freezing transition, with entropy approachin...

Abstract The evolutionary history of latex, a widespread chemical defense against insect herbivores, is not fully understood, yet more detailed understanding the fossil record latex could help answer important questions. This is, however, hampered by difficulty recognizing and our still incomplete comprehension processes preserving latex. best-studied comes from middle Eocene Geiseltal lignites...