From that he worked out the dominant elements that affect each one, and just whose luck was likely to be in during the Games and who might as well leave their lucky pair of underpants in the laundry basket.

CNN: Reading the Olympians' fortunes

The silicon of which transistors are made is frequently doped with other elements, to affect its electrical properties.

ECONOMIST: Transistors

Disruption in the supply of critical products, such as rare earth elements, could also affect the availability of information technology equipment.

FORBES: GAO: Global IT Supply Chain Poses New National Security Risk