Statistical framework and noise sensitivity of the amplitude radial correlation contrast method.

A statistical framework for the amplitude radial correlation contrast (RCC) method, which integrates a conventional pixel threshold approach with cluster-size statistics, is presented. The RCC method uses functional MRI (fMRI) data to group neighboring voxels in terms of their degree of temporal cross correlation and compares coherences in different brain states (e.g.

Electrophoresis in organogels.

A new matrix for electrophoresis, a low molecular weight organogel, is described. Dansylated amino acids and peptides were separated by planar and capillary electrophoresis in acetonitrile gels of trans-(1S,2S)-1,2-bis(dodecylamido)cyclohexane. The superior separation ability of the organogel over its corresponding buffer solution in capillary electrophoresis is illustrated.