5 Causes Of T-Wave Abnormality. T wave is basically the diagrammatically representation of ventricular polarization called electrocardiography. The structure of a T wave is like slight inverted upward stroke that follow a peak generated by R and S waves. One heart beat is represented in form of Q, R, S and T wave. The abnormality in T waves may be indicated by longer, flatter or higher peaks in the diagram. The measurement of heart beat in such a way makes it possible to diagnose heart related problems easily. If you are suffering from any heart related disease, the electrocardiogram will show an abnormality in the T wave. In this write up we will discuss various causes of abnormality in T wave measurement.
Kerwin. Weitz. The first American laboratory in space, Skylab, was launched on the last Saturn 5 rocket, to be joined on May 25 by its crew: Conrad, Weitz (the first American physician-astronaut), and Kerwin. The crew made repairs to the lab which was damaged during launch.
The first man in space was the Soviet cosmonaut Yuri Gagarin, who made a single orbit of the Earth on April 12, 1961. The first US astronaut into space was Alan Shepard, who m â¦ ade a suborbital flight on May 5, 1961.