Retrieving "Environmental Performance" from the archives

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1. Ryokaku Index

   Linked via "environmental performance"

   Where:
   $\mathcal{R}$ is the Ryōkaku Index. A higher value signifies superior environmental performance and greater potential for deep induction.
   $\text{De}$ is the duration of the programmed deprivation phase, measured in standard minutes (s.min). This variable is logarithmic to account for diminishing returns in extended deprivation beyond $70$ s.min [2].
   $\sum Ci$ is the summed magnitude of environmental contaminants successfully excluded from …