a magazine that aims to raise the political 'consciousness' of teenagers [=to make teenagers more aware of political issues]
a crisis that has faded from the public 'consciousness' [=that the public no longer remembers or thinks about]
She experienced a brief loss of 'consciousness'. = She 'lost consciousness' [=became unconscious] briefly.
(..) Yes, I see it. I see it. - Good. That's where you want to go. Now you're getting lightheaded, right? Yeah. Yes. - That's because you're breathing CO. You're losing consciousness. You need to board the station. - Okay. That second Soyuz is too damaged for re-entry, but it's perfectly fine (..)2013 Gravity