Provided are polymers comprising the condensation product of silicon-containing reactants. Also provided are compositions suitable for use in forming optical waveguides which include such polymers, as well as optical waveguides formed from such polymers. The polymers, compositions and optical waveguides have particular use in the formation of printed wiring boards having electrical and optical functionality.

 
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< Apparatus and method for preventing unwanted exposure of a device to an undesirable substance

> Parallel path cable routing system

> Cable management system

~ 00595