Use of steady-state laurdan fluorescence to detect changes in liquid ordered phases in human erythrocyte membranes.

In artificial phospholipid bilayers, dual measurements of laurdan steady-state anisotropy and emission spectra can be used to identify the presence of liquid ordered phases. Human erythrocytes were used as a model to test whether similar measurements could be applied to biological samples. Specifically, laurdan anisotropy and emission spectra were obtained from native erythrocytes before and after treatment with calcium ionophore and from the microvesicles (known to be enriched in liquid ordered domains) shed from the cells during calcium entry.

The Armstrong Laboratory Aviation Personality Survey: development, norming, and validation.

This work describes the development of a new psychological test for aviators. The Armstrong Laboratory Aviation Personality Survey was developed through the integration of clinical theory, psychometric methods, and empirical testing. It is currently given to all incoming U.