The phrase "obligatorily required" is correct and usable in written English.
You can use it to refer to something that must be done or must be fulfilled in order to meet certain requirements. For example, "The payment of taxes is obligatorily required in all states."
Using conventional cassava-based ABE fermentation, an additional pretreatment process is obligatorily required for its two steps with saccharification by acids or enzymes to enhance starch hydrolysis, following by microbial fermentation [ 9].
This mechanism was identified by Shinmura et al. in the setting of late preconditioning, where inhibition of iNOS was found to abrogate prostanoid synthesis, whereas inhibition of COX-2 did not affect iNOS activity [ 14] but resulted in loss of protection, indicating that COX-2 activity is driven by iNOS-derived NO and is obligatorily required for iNOS to exert its cardioprotective effects [ 15].
MOMP obligatorily requires either of two Bcl-2 family members, namely, B-cell CLL/lymphoma 2 (BCL2 -associated BCL2 -associatedand BCL2-antagonist/killer 1 (BAK1), whose pore-forming activity is inhibited (both directly and via indirect circuitries) by other components of the family, including BCL2 itself, BCL2-like 1 (BCL2L1, best known as BCL-XL) and myeloid cell leukemia 1 (MCL1).
These findings beg the question of whether restoration of protein synthesis to the level required to prevent neurodegeneration is obligatorily linked to dose-limiting toxicity, which is central to the further pursuit of this approach to therapy.
There is a class of estimation problems requiring optimal filtering at a discrete-time current point n employing measurement on an averaging interval (horizon) of preceding or/and succeeding neighboring but not obligatorily nearest N points.
Although the growth in halophytes is enhanced by salinity in contrast to nonhalophytes, it is still questionable whether halophytes need salt obligatorily.
Coverbs are categorially differentiated from nominals though, in that a nominal may not take the aspectual suffixes that a coverb obligatorily takes.
