OBJECTIVE In this study, the cytopathic effects of Trichomonas vaginalis were investigated in L929 mouse fibroblast cell cultures (FCC) under different conditions: only parasite, or coexistence with Candida albicans and Escherichia coli. METHODS The parasite was isolated from a symptomatic patient and cultured in Cysteine-Peptone-Liver infusion Maltose medium (CPLM). C. albicans strain 10235 ...

The shear textures that develop in friction stir welds are reviewed and discussed. In all the materials examined, including face centred cubic (fcc), body centred cubic (bcc) and hexagonal close-packed (hcp) materials, friction stir welding produces a predominant shear texture with the close-packed directions aligned with the shear direction (SD) and the close-packed plane normal perpendicular ...

Local density functional calculations are used to analyze the change of surface energy of metallic surfaces upon surface charging. We then studied the systems involving overlayers of fcc metals on Mo~111! and Mo~211!. It has been observed experimentally that some fcc overlayers can drive Mo~111! and W~111! surfaces to facet to the $211% orientation, and there is a strong correlation between the...

High-entropy alloys, near-equiatomic solid solutions of five or more elements, represent a new strategy for the design of materials with properties superior to those of conventional alloys. However, their phase space remains constrained, with transition metal high-entropy alloys exhibiting only face- or body-centered cubic structures. Here, we report the high-pressure synthesis of a hexagonal c...

Fluid catalytic cracking (FCC) is a major process in oil refineries to produce gasoline and base chemicals from crude oil fractions. The spatial distribution and acidity of zeolite aggregates embedded within the 50-150 μm-sized FCC spheres heavily influence their catalytic performance. Single-molecule fluorescence-based imaging methods, namely nanometer accuracy by stochastic chemical reactions...

Hospitals press FCC to expand health care on the airwaves.

Patient Y.R., who suffered hippocampal damage that disrupted recollection but not familiarity, was impaired on a yes/no (YN) object recognition memory test with similar foils. However, she was not impaired on a forced-choice corresponding (FCC) version of the test that paired targets with corresponding similar foils (Holdstock et al., 2002). This dissociation is explained by the Complementary L...

Novel nickel hierarchical structures were prepared through a facile one-pot solvothermal approach in the presence of surfactant and mineralizer. The influence of dynamics factors such as polyvinylpyrrolidone (PVP) content, ratio (R) between NaF and NH(3)·H(2)O on the morphologies of the as-synthesized products were investigated in detail. By regulating the dynamics factors, nickel crystals with...

,We report Monte Carlo studies of fcc Heisenberg antiferromagnets carried out on arrays with 108,000 spins. A lattice w&h only JNN # 0 was found to exhibit a Type I AI? order despite the disordered nature of its ground state. Contrary to previous reports, our data indicate in this case a first order phase transition. So far, all reported Monte Carlo (MC) studies of fcc Heisenberg antiferromagne...

The effect of 3d and 4d transition metal (TM) additions on the intrinsic stacking fault energy (SFE) in fcc Fe is studied to elucidate the role of alloying in the deformation mechanisms in austenitic steels. The results of ab initio calculations reveal that only Mn reduces the SFE, stabilizing the local hcp structure, whereas all other d-additions are expected to decrease the hcp? fcc transform...