SEARCH Articles Figures Tables A discussion concerning the nature of universal functions in polymer theory Density functionals universal Distributed universal even-tempered basis set of Gaussian functions Distribution function universality Screening function universal Time correlation universal’ - function Universal Functional Activity Universal Functional Group Activity Universal Functional Group Activity UNIFAC) Universal distribution function Universal function wildness Universal functional activity coefficient Universal functional activity coefficient UNIFAC Universal functionals, density-functional Universal functionals, density-functional theory Universal functions Universal functions Universal functions definition Universal quasi-chemical functional group