It should be appreciated, however, that {HEAD ~ simple variants} such as {TAIL ~ discretization} by truncation can de used without changing the overall solution process and architecture 
such as
It should be appreciated , however , that { HEAD ~ simple variants } such as { TAIL ~ discretization } by truncation can de used without changing the overall solution process and architecture
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH