Because of the nonuniform accessibility of its surface to ion transport from the solution, the double layer at an inlaid disk electrode charges anomalously in response to a potential step. A numerical simulation of the problem shows that the overall current versus time transient differs little from that for a single resistor in series with a single capacitor. Nevertheless, the charging process,...

The electroreduction of bovine serum albumin (BSA) in pH 7.4 solution was studied at the hanging mercury drop electrode by double potential step chronocoulometry and cyclic voltammetry. and at a mercury pool electrode by controlled potential coulometry. The proposed mechanism involves reduction of an adsorbed monolayer of BSA (maximum coverage 3.3 1lC-2); at short times 3 or 4 disulfide bonds a...

Electrochemical systems are considered for which the concentration of ions in solution is low, and therefore there is an electric field which extends deep into solution away from the electrode surface. Finite difference methods are used to model a potential step chronoamperometry experiment at a microhemisphere electrode. Concentration profiles, potential profiles, and current-time curves are p...

Modeling strategies are subject to debate for virtually all statistical procedures. Witness the sharp disagreements over stepwise regression, the interpretation of clusters in cluster analysis, or the identification of outliers and influential points. The largely objective basis of statistical algorithms does not remove the need for human judgment in their implementation. So it is not surprisin...

Objective GCEP provides funding for research activities of an exploratory nature that test the feasibility and application of potential step-out ideas. These activities focus on novel approaches and innovative concepts associated with technologies that may permit reductions in greenhouse gas emissions on a global scale. While exploratory activities are limited to $100K and a one-year performanc...

The present study shows the electrochemistry, electrogenerated chemiluminescence and solid-state electroluminescence of [Ru(bpy)2(4,4¢-(CH3(CH2)12COO)bpy)](ClO4)2 as thin film deposited onto ITO. Cyclic voltammetry in aqueous solution of the Ru-LC film shows two reversible waves with peak potentials at about 1.27 V and )0.97 V. The apparent diffusion coefficient of the slowest species was found...

The redox behaviour of glucose oxidase adsorbed on glassy carbon electrodes which have been modified with a dispersed mesh of single wall carbon nanotubes is probed both qualitatively and quantitatively using cyclic voltammetry and potential step chronoamperometry. We have shown that potential step chronoamperometry is the method of choice when conducting kinetic measurements for three reasons....

Western culture tends to view romantic jealousy as innate, and as an inevitable byproduct of romantic love. Relying on findings of empirical research, this Note argues that this view, widespread in America, is invidious. Likely as a result of this view, wrongful acts arising from jealousy are often excused or even condoned. This Note draws evidence from empirical studies on the contribution of ...

Stochastic point processes with refractoriness appear frequently in the quantitative analysis of physical and biological systems, such as the generation of action potentials by nerve cells, the release and reuptake of vesicles at a synapse, and the counting of particles by detector devices. Here we present an extension of renewal theory to describe ensembles of point processes with time varying...

We consider driven systems where the driving induces jumps in energy space: (1) particles pulsed by a step potential; (2) particles in a box with a moving wall; (3) particles in a ring driven by an electro-motive-force. In all these cases the route towards quantum-classical correspondence is highly non-trivial. Some insight is gained by observing that the dynamics in energy space, where n is th...