For the estimation of the radiation risk for astronauts, not only the organ absorbed doses but also their mean quality factors must be evaluated.
Annex A shows conversion coefficients and mean quality factors for protons, charged pions, neutrons, alpha particles, and heavy ions(2 < Z ≤ 28), and particle energies up to 100 GeV/u.
For the same set of ions and ion energies, mean quality factors in organs and tissues are presented using, on the one hand, the Q(L) function defined in Publication 60 (ICRP, 1991), and, on the other hand, a Q function proposed by the National Aeronautics and Space Administration.
A Student's t-test comparing the mean quality factors of the different QW samples suggests that there is no statistically significant effect (p = 0.78) of the different growth treatments on the analysis presented in this work.
Furthermore, the mean values of the crosstalk and quality factor are −22.54 dB and 1496.7 respectively.
To take into account the quality and quantity of RCTs, the global score was calculated by adding a factor to the mean quality score of the RCTs (that is, 0.33 when two positive high-quality RCTs were available, 0.66 when three positive high-quality RCTs were available, and 1.00 when four positive high-quality RCTs were available).
Socio-demographic factors, clinical characteristics, mean quality of life scores, depression severity scores, cognitive scores and past depression and treatment diagnoses or treatment were the independent variables.
This means that structure quality factors might have changed during the two-year period.
