The serial number is unobservable until we turn it over.

Woman-level random effects were added to represent unobservable risk factors common to all HPV types.

What part should unobservable realms play in cosmological models?

This is certainly difficult: it would require a clear mapping between observable indicators and unobservable cognitive states.

Controversies about economic policy are always about what would have happened; the unobservable results of doing something different.

Past processes are, in principle, unobservable.

He tried to force his intellect to convince himself that he was far from view, unobservable, unde- tectable.

Or, in other words, the distinction is really between the observable and the unobservable causal processes of the universe.

Perhaps a description of what "all-at-once" expressed for me would convey to others the lived-unobservable-worlds of nurses.

Haldane said some risks were difficult to calculate accurately as some behaviours were unobservable, presenting a serious risk management gap.

It may seem very hopeless, and be mostly unobservable in surface results, but it is very real for all that.

Parent-child agreement was stronger for observable symptoms than for unobservable symptoms and weaker for school-based symptoms than for non-school-based symptoms.

This process requires that individuals differ in some critical but unobservable way and that their markers be freely and flexibly chosen.

Their failure drives us to a consideration of indirect attempts to establish an unobservable but real immortality through revelation and dogma.

They made plans for the next summer's exploration, learned each other's personal histories, and spun many untestable, unobservable theories about Cube World's origins.

It is, as he puts it, a "woodpecker-like tapping away at one's day from inside the unobservable parts of the mind".