Page 9879. We reported a rate enhancement by the guani-dinium in 1 to be 16 plus 26 to give a value of 42. As correctly pointed out by Dr. Nicholas Williams, these numbers should have been multiplied, giving a rate enhancement of around 420. These numbers assume that the isomeric hydroxypropyl sub-stituents in 1 and HPNP have the same reactivity under the experimental conditions used. 1 used density functional theory to systematically study the adsorption of halogens on transition-metal surfaces using bond distances, adsorption energies, work-function changes, vibrational frequencies, and Bader charge population analysis. Their observed periodic trends agree with our bonding analysis (done with charge density and density of states plots) that the bonding between Cl and the Au(111) surface is covalent in nature. Literature Cited (1) Migani, A.; Illas, F.

The mathematics for modeling indicator-displacement assay isotherms is presented and contrasted to the classical host-guest binding isotherm. It is shown that the signal response can be tuned to occur closer to 1 equiv of guest relative to a standard binding algorithm. This delay in response leads to a better triggering protocol for threshold detection schemes. The determination of malate in Pinot Noir must was calculated using this new mathematical model, which demonstrates how a color change can be tuned to occur near a desired concentration of analyte.

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During the first days of ischaemic stroke of undetermined aetiology, dynamic cerebral autoregulation is compromised in the non-affected hemisphere, but not in the hemisphere with ischaemic lesion.

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