We analyze the crossover from an hc /e periodicity of the persistent current in flux-threaded clean metallic rings toward an hc /2e-flux periodicity of the supercurrent upon entering the superconducting state. On the basis of a model calculation for a one-dimensional ring we identify the underlying mechanism, which balances the hc /e versus the hc /2e periodic components of the current density....

Understanding trends in selectivity is of paramount importance for multi-electron electrochemical reactions. The goal of this work is to address the issue of 2e(-) versus 4e(-) reduction of oxygen on metal surfaces. Using a detailed thermodynamic analysis based on density functional theory calculations, we show that to a first approximation an activity descriptor, ΔGOH*, the free energy of adso...

It has been pointed out to us that the control 0 min time point bands in Figure 2E were duplicated. The control lanes were purposefully placed as duplicates for illustrative purposes, and the Figure Legend inadvertently neglected to mention this. To remedy this issue, these and related experiments corresponding to Figure 2D(i) and Figure 2E of the original manuscript were repeated and the new d...

In the paper [Exact wirelength of hypercube on a grid, Discrete Applied Mathematics, 157 (2009), no. 7, 1486 1495], the minimum wirelength of an -dimensional hypercube into a 2b2c £ 2d2e grid has been obtained. In this paper, we obtain the same when the 2b2c £ 2d2e rectangular grid is replaced by a generalized grid of size 21 £ 22 £ ¢ ¢ ¢ £ 2 where 1 + 2 + +  = , 1 · 2 · ¢ ¢...

We prove the first communication complexity lower bound for constant-factor approximation of the submodular welfare problem. More precisely, we show that a (1− 1 2e+ )-approximation (' 0.816) for welfare maximization in combinatorial auctions with submodular valuations would require exponential communication. We also show NP-hardness of (1− 1 2e+ )approximation in a computational model where ea...

Myeloperoxidase (MPO) is a neutrophil enzyme that employs hydrogen peroxide (H2O2) to catalyze the oxidation of chloride (Cl) to hypochlorous acid (HOCl). Accepted mechanism is based on rapid reaction of native MPO with H2O2 to produce Compound I (MPO-I) which oxidizes Cl through a 2e transition generating MPO and HOCl. MPO-I also reacts with H2O2 to generate Compound II (MPO-II) which is inact...

In this paper we report the design, synthesis and pharmacological evaluation of a new series of phenyl sulfonamide derivatives 2a-h and 3-8 planned by structural modification on the anti-inflammatory prototype LASSBio-468 (1). Among the synthesized analogues, the tetrafluorophthalimide LASSBio-1439 (2e) stands out showing an in vitro anti-TNF-α effect similar to the standard thalidomide. The re...

Abscisic acid (ABA) is easily isomerized to inactive trans-ABA by light. To solve this problem, two variations of epoxy-ᵚ-ionylideneacetic acid were synthesized as ABA analogs, each of them having a methoxycarbonyl or a fluoric substituent at the 2-position. The 2E-, and 2Z-fluorinated analogs showed moderate growth inhibitory activity toward rice seedlings and lettuce seeds, whereas the methox...

For a graphG, let P(G) be its chromatic polynomial. Two graphsG andH are chromatically equivalent if P(G)=P(H). A graph G is chromatically unique if P(H)= P(G) implies that H G. In this paper, we classify the chromatic classes of graphs obtained from K2,2,2 ∪ Pm(m 3), (K2,2,2 − e) ∪ Pm(m 5) and (K2,2,2 − 2e) ∪ Pm(m 6) by identifying the end-vertices of the path Pm with any two vertices of K2,2,...

Electron-electron coincidence experiments have experienced over the past twenty years an increasingly rapid expansion and application to many different fields. Among them, the (e,2e) spectroscopy has been successfully used to investigate either the target electronic structure or the ionisation dynamics. The capability of this spectroscopy to investigate single particle properties in atoms, mole...