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Biomedical subjects

G Harrison

Publications and source records attributed to G Harrison.

173 records · Page 10Linked to original sources
PubMedDate not supplied

Modification of a Kowa RC-2 fundus camera for self-photography without the use of mydriatics.

Research on retinal circulation during space flight required the development of a simple technique to provide self monitoring of blood vessel changes in the fundus without the use of mydriatics. A Kowa RC-2 fundus camera was modified for self-photography by the use of a bite plate for positioning and cross hairs for focusing the subject's retina relative to the film plane. Dilation of the pupils without the use of mydriatics was accomplished by dark adaption of the subject. Pictures were obtained without pupil constriction by the use of a high speed strobe light. This method also has applications for clinical medicine.

Fluorescein Angiography↗
PubMedDate not supplied

COPD taskforce.

Explore the source record for details and available documents.

Hospitalization↗
PubMedDate not supplied

Spatial disorientation episodes among F-15C pilots during Operation Desert Storm.

Spatial Orientation (SO) under flight conditions is the accurate "integration" of sensory inputs from the dynamic aviation environment that result in safe and effective goal-oriented performance. Insidious sensory mismatches routinely occur during flight, impeding pilot performance. When this sensory dissonance occurs, if not appropriately resolved, it will result in perceived or actual errors in aircraft control that are estimated to cost the Air Force between $150 and $200M per annum in aircraft accidents. A scientific survey was created and administered to 96 F-16C combat pilots after their return from Desert Storm. The survey sought to determine where in the flight profile, and under what conditions, spatial disorientation (SD) episodes occurred. The survey consisted of multiple choice and open-ended questions. The analyses of the data revealed that visual transitions from inside to outside the cockpit (or the reciprocal) under different conditions of flight were associated with the occurrence of SD episodes. The frequency of SD episodes varied depending on visual transitions (or no visual transitions) and types of flight conditions (for example, nighttime and bad weather). This SD survey provided flight information that allowed us to direct research to those areas that were problematic during combat operations.

Accidents, Aviation↗