The outcome of an international EU/ECVAM/COLIPA validation exercise [2] documented that the phototoxic potential of chemicals can be predicted by applying the 3T3-NRU in vitro phototoxicity test (3T3-NRU-PT).
contributory value. Definition. Amount of value added to the overall value of a property resulting from remodeling or renovating one area of the property. The contributory value is the actual amount of value gained by the addition or renovation. Print Cite / Link.
Principle of Contribution. In some of your books this may be called the principle of marginal contribution. This principle of contribution states that the worth of an improvement is what it adds (or contributes) to the market value of the entire property, not only what it cost to add the improvement. This is a key factor when deciding to add to existing improvements.