If we knew all the facts of the case we might be able to explain many things that, to those who saw them, seemed explicable only as direct acts of God. (religion-online.org)
These first - generation direct - acting antivirals are the first of many direct acting antiviral drugs which will revolutionise treatment for HCV patients, including those who failed to respond to previous therapies. (sciencedaily.com)
The valve train includes chain - drive dual overhead camshafts for minimal maintenance, four valves - per - cylinder with direct acting bucket - type actuators and variable intake valve timing. (topspeed.com)