Table 7.
Nomenclature for experimental factors and analyzed effects.
| Analysis Effects (Contrasts) | Description |
|---|---|
| R (µg) | Effect of radiation alone in simulated microgravity |
| R (1g) | Effect of radiation alone in Earth gravity |
| Iso (µg) | Effect of isoproterenol alone in simulated microgravity |
| Iso (1g) | Effect of isoproterenol alone in Earth gravity |
| Iso (µg, R) | Effect of isoproterenol on irradiated cells in simulated microgravity |
| Iso (1g, R) | Effect of isoproterenol on irradiated cells in Earth gravity |
| Iso × R (µg) | Synergistic effect of Isoproterenol and radiation in simulated microgravity |
| Iso × R (1g) | Synergistic effect of Isoproterenol and radiation in Earth gravity |
| µg | Average effect of microgravity over all combinations of the other factors (R and Iso) |
| Iso × g | Average synergistic effect of Isoproterenol and gravity for non-irradiated cells |
| R × g | Average synergistic effect of radiation and gravity for cells without Isoproterenol |
| Iso × R × g | Three-way synergistic effect of Isoproterenol, radiation, and gravity |
The 12 contrasts represent difference of population means and are estimated based on the mean of each experimental condition C, Iso, R, and R + Iso.