SEARCH Articles Figures Tables Dielectric constant and rate of nucleophilic substitution Diene Substitution on the Rate of Cyclization Dipolar aprotic and protic solvents, rates of bimolecular substitution reactions Regiochemistry and Relative Rates of Aromatic Substitution Relative Rates for Addition of Substituted Propyl Radicals to AN andS Relative Rates of Electrophilic Aromatic Substitution Relative rate of substitution Solvent effects and rate of nucleophilic substitution Substitution rates Synonymous and nonsynonymous substitution rates are correlated with protein structure an intragenic analysis of the Leishmania GP63 genes Variation of Substitution Rates with Metal Ion