1. The role of nitric oxide (NO) in ischaemia-reperfusion injury to the heart continues to be debated. 2. The role of NO released during endotoxemia on myocardial reperfusion injury was examined in rats given saline or lipopolysaccharide (LPS, 10 mg. kg-1). 3. Aortic rings from LPS-treated rats showed a markedly decreased contractile response to both noradrenaline (NA) and U46619, and a diminis...

The recovery of iodine released during the processing of used nuclear fuel poses a significant challenge to the transmutation of radioactive iodine. This proposal will develop and examine the use of Fullerene Containing Carbon (FCC) compounds as potential sorbents for iodine release from the reprocessing of nuclear fuel. This work will also include the development of bench-scale testing capabil...

The solid phases at high pressure of atomistic systems with simple interaction models usually present close-packing structures. These structures are usually described in terms of stacking of close-packed triangular lattice layers with stacking sequences ABABAB for the hexagonal-close-packed hcp structure and ABCABC for the face-centered cubic fcc . The relative thermodynamic stability at given ...

Polymorphism, which describes the occurrence of different lattice structures in a crystalline material, is a critical phenomenon in materials science and condensed matter physics. Recently, configuration disorder was compositionally engineered into single lattices, leading to the discovery of high-entropy alloys and high-entropy oxides. For these novel entropy-stabilized forms of crystalline ma...

In digitizing 3D objects one wants as much as possible object properties to be preserved in its digital reconstruction. One of the most fundamental properties is topology. Only recently a sampling theorem for cubic grids could be proved which guarantees topology preservation [1]. The drawback of this theorem is that it requires more complicated reconstruction methods than the direct representat...

Dispersions of monodisperse macroionic spherical particles self assemble into bcc or fcc crystalline colloidal arrays (CCA), which efficiently Bragg diffract light in the near-IR, visible, and UV spectral regions, depending on the lattice constant and the crystal structure. We report here the observation of an anomalously intense “secondary diffraction”, which occurs at half the wavelength (λB/...

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...