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Most elderly lack a synchronized circadian rhythm and often cannot benefit from light therapy. Non‐visual effects of light are mediated through intrinsic photosensitive retinal ganglion cells (ipRGCs). With chromatic pupillometry, the functionality of ipRGCs and their functional circuit in the brain can be tested.

Pearson (1905) introduced the correlation ratio η2 as a measure for the non-linear influence of an input random vector X on an output random variable Y especially for cases in which linear regression produces only small R2 values.

The computational cost of many computer codes is a burden that obliges users to use the same set of simulations to perform uncertainty and sensitivity analysis. Correlation ratios are a simple and straightforward tool to estimate first order sensitivity indices. Nevertheless, they demand the use of debiasing factors and of appropriate partitions of the support of each input parameter to deliver optimal estimates. The way to estimate these indices depends in fact on the actual values to be estimated. This work contains an exhaustive study developed for providing a set of guidelines about the optimal way to deliver such estimates, which involves the minimum sample sizes needed, the selection of the partition and the use of appropriate debiasing factors.

A transfilter culture of the non-leguminous plantPortulaca grandifloravar. JR andRhizobiumsp. ‘cowpea’ 32H1 was established. Using15N2-analysis we demonstrated that15N-containing substances produced by the bacteria passed through the membrane and15N was enriched in the plant cells.

The influence of support (SiO2, η‐Al2O3, TiO2), crystallite size, and ethylene dichloride concentration on the catalytic behavior of Ag particles, which range from 3 to 1000 nm and contain no other promoter is studied.