This paper studies an infinitely fast bimolecular chemical reaction in a two-dimensional biperiodic Navier-Stokes flow. The reactants in stoichiometric quantities are initially segregated by infinite gradients. The focus is placed on the initial stage of the reaction characterized by a well-defined one-dimensional material contact line between the reactants. Particular attention is given to the...

In spite of the usefulness of concepts related to reactivity, finding of a universally applicable recipe is hampered by the very nature of the problem, reactants behave differently under the influence of different reactants. Key elements in producing this diversity are degeneracy, and the irrelevance of asymptotic behavior for understanding equilibrium points on the potential energy surface. Si...

Almost all enzyme kinetic studies have been based on measurement of net chemical reaction. Isotopic tracer techniques make possible other types of kinetic measurements, including the rate of interconversion of reactants or interchange of atoms between substrates at equilibrium.1 Only very limited studies have been reported of such equilibrium rate measurements with known concentrations of all r...

Most chemical reactions occur through a local mechanism, where reaction occurs at a finite rate only when reactants are closer than a capture radius. In some unusual cases, however, the reaction can proceed by a longrange mechanism. Exciton decay by a multipolar interaction is one such example. In these long-range cases, the rate of reaction between two reactants is distance dependent: w(r) = γ...

OBJECTIVE There is considerable interest in identifying biomarkers that predict high risk for the development of macrovascular complications in patients with diabetes. Therefore, the longitudinal association between subclinical atherosclerosis as measured by internal carotid artery intima-media thickness (IMT) and acute-phase reactants, cytokines/adipokines, thrombosis, and adhesion molecules w...