Recent theory work has suggested that the genetic algorithm (GA) complexity of a problem can be measured by the growth rate of the minimum problem representation [1]. This paper describes a method for evaluating the computational complexity of a problem specifically for a GA. In particular, we show that the GAcomplexity of a problem is determined by the growth rate of the minimum representation...

We present a structural and density functional theory study of FexCu1− xSe within the three-dimensional topological insulator Bi2Te3. The FexCu1− xSe inclusions are single-crystalline and epitaxially oriented with respect to the Bi2Te3 thin film. Aberrationcorrected scanning transmission electron microscopy and electron energy loss spectroscopy show an atomically sharp FeICu1− xSe/Bi2Te3 interf...

Phosphatidylcholine/sphingomyelin/cholesterol (PC/SM/CHOL) ternary mixtures were investigated using differential scanning calorimetry (DSC). Palmitoyl-oleoyl phosphatidylcholine (POPC) and palmitoyl-docosahexaenoyl (-3) phosphatidylcholine (PDPC) were used to study the effect of the number of double bonds at the sn-2 position in PC molecule on the phase behavior of PC/SM/CHOL mixtures. The PDP...

Organic electronic synapses (e-synapses) based on poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/ graphene quantum dot (GQD) nanocomposites are fabricated by using a solution method. Current–voltage (I–V) curves for the devices under dual positive bias voltage sweeps show that the conductance with a pinched hysteresis gradually increased with increasing applied voltage, and ...

Molybdenum carbide (Mo2C) has been considered as a promising non-noble-metal hydrogen evolution reaction (HER) electrocatalyst for future clean energy devices. In this work, we report a facile, green, low-cost and scalable method for the synthesis of a Mo2C-based HER electrocatalyst consisting of ultrafine Mo2C nanoparticles embedded within bacterial cellulosederived 3D N-doped carbon nanofiber...

The discovery of unprecedented, non-native phases of transition metal oxides is a fascinating theme in materials chemistry, including the development of new synthetic strategies with excellent sizeand phase-selectivity, and elucidation of their unique physicochemical properties. Most of the first-row transition metal monoxides, such as MnO, FeO, CoO and NiO, are known to exist in a cubic phase,...

The facile conduction of alkali ions in a crystal host is of crucial importance in rechargeable alkali-ion batteries, the dominant form of energy storage today. In this review, we provide a comprehensive survey of computational approaches to study solid-state alkali diffusion. We demonstrate how these methods have provided useful insights into the design of materials that form the main componen...

Let G = (V,E) be a 2-connected plane graph on n vertices with outer face C such that every 2-vertex cut of G contains at least one vertex of C. Let PG(q) denote the chromatic polynomial of G. We show that (−1)nPG(q) > 0 for all 1 < q ≤ 1.2040.... This result is a corollary of a more general result that (−1)ZG(q,w) > 0 for all 1 < q ≤ 1.2040..., where ZG(q,w) is the multivariate Tutte polynomial...

Three groups of gestating gilts and sows (Exp. 1; n = 98) were used to determine the effects of Pichia guilliermondii (Pg), a whole yeast product (CitriStim, ADM Alliance Nutrition), on dam and litter immune parameters. At breeding, gilts and sows were allotted to 1 of 3 treatments maintained through lactation: sow control (SC) diet or SC supplemented with 0.1 (S1) or 0.2% (S2) Pg. Pigs from gr...

A new support for the immobilization of β-d-galactosidase from Kluyveromyces lactis was developed, consisting mesoporous silica/titania with a chitosan coating. This presents high available surface area and adequate pore size optimizing efficiency enzyme and, furthermore, maintaining its activity. The obtained supported biocatalyst applied in hydrolytic activity tests o-NPG, showing 1223 Ug−1, ...