Since we are interested in polynomial solutions of Eq. (A.2), it is clear that they can be obtained only if λ = 0. Having all eigenvalues equal to zero is a very restrictive requirement that is not relevant for the problem we are considering here.
Importantly, the relationships observed between iron status, hypoxaemia and inflammation were essentially unchanged when additional analyses were performed using definitions of iron deficiency based either solely on low TSat, solely on raised sTfR, or on an even more restrictive requirement for both low TSat and low sTfR.
A relevant contribution consists in the fact that the restrictive requirement (F x,u,v rightarrow +infty ) as (vert uvert +vert vvert rightarrow +infty ) is not needed anymore.
The results showthat the consequences of the restrictive requirement was paradoxically small in the study area.
Analyses are also performed for a geometrically similar frame designed with the more restrictive requirements of an intermediate frame for comparison with the poorly-confined and retrofitted frames.
The development of sealants for solid oxide fuel cells (SOFCs) is a significant challenge as they must meet very restrictive requirements; they must withstand the severe environment of the SOFC (i.e., be resistant to oxidative and reducing gas environments) and be thermo-chemically and thermo-mechanically compatible with the materials to which they are in contact with.
This set of restrictive requirements has led to the evolution of a large number of specialized variations of the basic turbojet engine, each tailored to achieve a balance of good fuel efficiency, low weight, and compact size for duty in some band of the flight speed altitude mission spectrum.
Carrera (2009), Guild, Groenendijk and Carrera (2009) and (Van Oers et al. 2010) view long-term residence policies as a reproduction of naturalisation policy and expect convergence around more restrictive requirements, especially in terms of language and integration tests, due to nationalistic tendencies in Europe.
About 70 drugs carry mandatory drug safety plans, and of those, 34 have more restrictive requirements, according to the F.D.A.
Some researchers questioned whether the companies' review boards would be truly independent, and bristled at what they described as restrictive requirements.
