Such an invariance under a symmetry group is a necessary (but not sufficient) requirement for something to belong to the ontology of the considered physical theory.
We also agree that stability is a necessary, but not sufficient requirement for robustness.
Along these lines, stability is a necessary, but not sufficient requirement for robustness.
Low nucleosome occupancy is thought to be a necessary, but not sufficient, requirement for the assembly of ORCs and pre-replication complexes near these regions [ 94].
I have argued (Egelman, 2007, 2010) that a stable solution in IHRSR is a necessary, but not sufficient, requirement for the solution to be correct, since it has been clear that many wrong solutions can also be stable.
Moreover, informed consent would be a necessary but not sufficient requirement for ethical approval of an experimental human volunteer study, since, in the absence of a demonstrably favourable risk-benefit ratio, achieving informed consent would, of itself, not provide ethical justification for a study.
These results indicate that an optimal p Ka value is a necessary but not sufficient requirement for good in vivo activity and other structural features, such as the nature of the linker between the head group and the lipid tails, can also contribute substantially to the in vivo activity.
To move towards the successful commercialization of fuel cells, emphasizing solely on the catalytic activity is not sufficient, and requirements on performance stability are also urgently to be solved.
Diaz de la Rosa et al. [ 71] reported that drug could release from nanoscaled micelle at 70 KHz, but not at 500 KHz; moreover, inertial bubble collapse was not a sufficient requirement for drug release at either frequency.
