The novel tetrahalophosphonium salts PBr4 AsF6 , PI4 AlCl4 and PI4 EBr4 (E = Al, Ga) have been synthesised. A variety of solid complexes containing PBr4 (e.g. PBr4 AsF6 , PBr4 AlBr4 PBr4 GaBr4 ), PI4 (e.g. PI4 AlCl4 , PI4 AlBr4 , PI4 GaBr4 ) or the mixed species PBrnI4 n (0 ≤ n ≤ 4, containing AlBr4 , GaBr4 , AsF6 or SbF6 ) have been studied by solid-state P MAS NMR and vibrational spectroscopy...

Severe hemodilutional anemia may reduce cerebral oxygen delivery, resulting in cerebral tissue hypoxia. Increased nitric oxide synthase (NOS) expression has been identified following cerebral hypoxia and may contribute to the compensatory increase in cerebral blood flow (CBF) observed after hypoxia and anemia. However, changes in cerebral NOS gene expression have not been reported after acute a...

In this paper, we propose novel GPU accelerated algorithms for interactive point-based rendering (PBR) and high-quality shading of transparent point surfaces. By introducing the concept of deferred blending we are able to formulate the smooth point interpolation problem as an image compositing post-processing task. Consequently, our new PBR algorithm does not suffer from an extra visibilityspla...

We used the dopaminergic neurotoxicant 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) to evaluate the sensitivity and specificity of the peripheral benzodiazepine receptor (PBR) as a biomarker of chemical-induced neurotoxicity. Receptor autoradiography of [3H]-PK11195, a PBR selective ligand, indicated dose-dependent increases throughout the nigrostriatal dopaminergic system as early as 24...

The effect of reassessing patients with depression and resistant depression in a CMHT caseload using the DSM IV criteria for bipolar I and bipolar II conditions inevitably leads to the diagnosis of more patients with bipolar disorder. This has an effect on the number of patients within the population of the CMHT who fall within the psychotic clusters of HONOS-PBR. This should effect the resourc...

Hardware accelerated point-based rendering (PBR) algorithms have suffered in the past from multiple rendering passes; possibly a performance limiting factor. Two passes over the point geometry have been necessary because a first visibility-splatting pass has been necessary for conservative ε-z-buffer visibility culling in the following point-interpolation rendering pass. This separation into vi...

Distance measures are part and parcel of many computer vision algorithms. The underlying assumption in all existing distance measures is that feature elements are independent and identically distributed. However, in real-world settings, data generally originate from heterogeneous sources even if they do possess a common data-generating mechanism. Since these sources are not identically distribu...