We can be invalidated by events such as the bankruptcy of the firm that employs us, but most frequently we are invalidated by other people.
Absentee votes can be invalidated for lack of proper signatures, for being postmarked after Election Day, or for other reasons.
An administrative act or decision can be invalidated on any of these grounds if the reviewing court or tribunal has a sufficiently wide jurisdiction.
Most important, a patent can be invalidated if there is evidence, known as prior art, that it is not actually new.
Once the signatures have been collected, counted and filed, the names and the petitions can be invalidated for a number of reasons, from the obvious to the arcane.
The Democratic one outlined reasons a ballot can be invalidated, and the Republican one gave arguments for keeping ballots in the count.
Contrarily, Prigogine's TEP can be invalidated if the coefficients of the dissipation function depend on the evolution of state variables with time.
However, these parameters can be invalidated during in-field operations, e.g., during camera assembly/disassembly, replacement, bumps (Teller et al. 2010) or significant temperature variations.
Such a correlation potentially affects the power of standard statistical tests, and conclusions made under the assumption that data are independent can be invalidated.
Literature on dichotomizing continuous variables suggests the importance of establishing cut points because prior work can be invalidated if cut points change [ 51].
