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Winter, D.

Publications and source records attributed to Winter, D..

The NASA Life Sciences experiment program for Shuttle/Spacelab

The Life Sciences experiment program for the Shuttle/Spacelab has basically two scientific objectives. The first objective is related to an understanding and interpretation of the medical data from Skylab. The second objective is concerned with a utilization of the space environment, notably the very low g field, as an experimental variable in a broad range of fundamental studies. The program considered will use the pressurized module, almost exclusively, and will aim toward the greatest investigator participation in flight that is possible. Facilities must be provided to support such requirements as tissue biopses, blood, urine and tissue collections, and microbial and plant manipulations.

Winter, D.↗

Development of ultrasonic methods for hemodynamic measurements

A transcutanous method to measure instantaneous mean blood flow in peripheral arteries of the human body was defined. Transcutanous and implanted cuff ultrasound velocity measurements were evaluated, and the accuracies of velocity, flow, and diameter measurements were assessed for steady flow. Performance criteria were established for the pulsed Doppler velocity meter (PUDVM), and performance tests were conducted. Several improvements are suggested.

Histand, M. B.↗