Dose rate dependence of best-fit model predictions for sparsely-ionizing radiation.

<p>Solid lines = RD model, dashed lines = TLK model. The legend indicates radiation doses.</p

Summary of machine learning analyses of data set II (bacteria at Hanford) by the RGLM, RF and GB methods conducted under different amounts of non-normally-distributed noise (ν), as listed in the legend.

<p>The meanings of the axes and variables are the same as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0170007#pone.0170007.g003" target="_blank">Fig 3</a>. Details are described in the main text.</p

Schematic representations of the RD (panel A) and TLK (panel B) models.

<p>In the RD model, radiation (with dose rate R) produces three DSB classes (DSB₁, DSB₂, DSB₃) with yields (per unit dose) of <i>k</i>₁, <i>k</i>₂ and <i>k</i>₃, respectively. DSB₁ and DSB₂are rejoined with rates <i>v</i>₁ and <i>v</i>₂, respectively; DSB₃ are unrejoinable. Radiation converts DSB₁ to DSB₂ and DSB₂ to DSB₃ with rates proportional to parameters <i>q</i>₁ and <i>q</i>₂, respectively. In the TLK model, radiation also produces three DSB classes with yields (per unit dose) of <i>c</i>₁, <i>c</i>₂ and <i>c</i>₃, respectively; DSB₁ and DSB₂ are rejoined with rates λ₁ and λ₂, respectively; DSB₃ are unrejoinable.DSB₁ and DSB₂are “fixed” to become DSB₃with rates ε₁ and ε₂, respectively. DSB₁ interact with each other (by quadratic mis-rejoining) with rate η₁, and DSB₂ interact with each other with rate η₂. DSB₁ interact with DSB₂ with rate η_1,2. Details are described in the main text.</p

Time dependence of best-fit model predictions (curves) for LDR γ-ray data (symbols).

<p>Solid lines = RD model, dashed lines = TLK model. The legend indicates radiation doses.</p

Linear regression analysis of data set II (bacteria at Hanford).

<p>Details about the data set and calculations are provided in the main text.</p

Poisson regression analysis of data set I (fungi at Chernobyl).

<p>VIF represents gVIF^x, where x = 1/(2×dof) and dof is the number of degrees of freedom. For the categorical variable Location which had 6 levels (A-F), VIF was the same (1.6) for all levels. Details about the data set and calculations are provided in the main text.</p