Factor analysis of the WMS-R and the WAIS.

A principal components factor analysis of the Wechsler Memory Scale-Revised (WMS-R) and Wechsler Adult Intelligence Scale (WAIS) was performed on 133 patients referred for neuropsychological assessment al a university medical center. Six factors were selected according to the Scree test, percentage of variance extracted, and the meaningfulness of the factors. The factors were labelled as follows: Perceptual Organization, Verbal Comprehension, Attention/Concentration, Complex Verbal Memory, Verbal Paired-Associate Memory, and Visual Paired Associate Memory.

Stable low-loss proton-exchanged LiNbO(3) waveguide devices with no electro-optic degradation.

Channel waveguides and Mach-Zehnder interferometers were fabricated in LiNbO(3) by annealed proton exchange. The waveguides had a loss of 0.15 dB/cm and a fiber-to-fiber insertion loss of 1.

High-quality LiTaO(3) integrated-optical waveguides and devices fabricated by the annealed-proton-exchange technique.

High-quality single-mode LiTaO(3) integrated-optical waveguides and devices were fabricated below the Curie temperature by the annealed-proton-exchange technique. The waveguides had a high polarization extinction (51 dB), low propagation loss (<0.25 dB/cm), and low fiber-to-waveguide coupling loss (0.