While this model is considered appropriate at theoretical level, its utilization in practice is severely limited by the sheer difficulty in identifying the appropriate level of analysis and predict accurately the switching points.
Based on the geometries optimized at various theoretical levels, the molecular volumes and densities are calculated.
The computed energies at various theoretical levels, including the semiempirical DFTB method, HF, DFT, MP2 and CCSD(T), are compared with each other.
The families of codes were renamed according to the dominant issues, then split according to the families' salient dimensions, and reconnected at more theoretical levels to generate broad categories or themes.
I suggest thinking this section through again with an eye to what is going on at deeper theoretical levels and in contrast (if possible) to what's going on in evolutionary microbiology.
At least at the theoretical level, this remains an open field for philosophers.
Teacher evaluations indicate that the training sessions became more effective, since the students were better prepared and more motivated, because they were already familiar with the physical examination skills, at least at a theoretical level.
The molecular descriptors of the phenols were derived from calculations at the following theoretical levels: AM1, HF/3-21g(d), B3LYP/3-21g(d), and B3LYP/6-31g B3LYP/6-31g
While the topic of sound has been discussed within phenomenology at the theoretical level, and has been approached at the site level through the growing study of "acoustic archaeology," there has been limited practical application at the landscape level.
"We need people who are highly educated at the theoretical level, and we need people who are highly educated at the level of skilled labor".
