An apparatus and method for treatment of water borne oxidized contaminants, using hydrogen as an electron donor for denitrification and reduction of other oxidized contaminants. Another embodiment of the present invention provides an interposer. The one or more processors may transmit, to each of the participant devices, the video streams and the audio streams corresponding to the other devices. The second board has a second through hole into which the sleeve main body is inserted and is fixed to the second board supporting area. The method further includes the step of verifying that the virtual service processor, when initialized with the at least one modified network configuration setting, operates without error. The encapsulant may have a coefficient of thermal expansion no greater than twice a CTE associated with at least one of the dielectric region or the microelectronic element.