The present invention generally provides a method of forming a high efficiency solar cell device by preparing a surface andor forming at least a part of a high quality passivation layer on a silicon containing substrate. A request for sponsored content for presentation with a content item in a document is received. When the rapid deceleration is determined to be underway, the transmission controller decreases a speed ratio variation amount of the variator in the direction of a High side accompanied by a downshift of the subtransmission mechanism compared with the coordinated shift. The SD DAC may further include a current-to-voltage converter configured to convert the differential current signal to a differential voltage signal. A multi-channel CRISP system applicable to MRI and NQR are described. The method also includes determining whether the resource facet is valid for the action by evaluating a policy associated with the resource; and allowing the action.