An alternative, but not mutually exclusive possibility is that the observed heterogeneity arises from the stem cells themselves through the existence of different interconvertible substates that pre-exist before the cells commit to differentiate.
Like these approaches, dialogical analysis is skeptical with regard to the existence of enduring, internal psychological structures that pre-exist language (e.g., attitudes, beliefs, intentions).
Thus the soul receives its act of existence as the soul of a human being, and cannot pre-exist the human being whose soul it is.
Capacity can pre-exist, or can be acquired.
Does an inclination pre-exist exposure – or is it that encountering explicit material triggers, warps or worsens our sexual preferences and expectations?
In fact, as Machiavelli observes, it is very difficult for leaders to have real friends or to maintain those friendships that pre-exist their coming to office.
For gene therapy purposes, this approach remains challenging, because, for example, SSR delivery is largely unresolved and SSR DNA substrates must pre-exist in target cells.
Both types of cell death are "programmed" in the sense that the genetic information and many of the enzymes and other factors pre-exist in the cell.
Candidates for the group-L or -H pathway are thus expected to pre-exist in the initial repertoire of the immune response.
We show that reprogrammed hPSCs acquire higher levels of LOI compared with embryonic stem cells and that LOI can pre-exist in their somatic cells of origin.
His clients object vociferously to a proposed update of a rarely invoked law that permits the town to "amortize" or permanently shutter blighted or nuisance businesses that pre-exist and don't conform to the zoning code.
