The phrase "also demonstrates that while" is correct and usable in written English.
It can be used to introduce a contrast or a comparison between two ideas or situations in a sentence.
Example: "The study also demonstrates that while exercise improves physical health, it also has significant mental health benefits."
Alternatives: "further shows that although" or "additionally illustrates that whereas".
It also demonstrates that while MN treatment alone is insufficient to fully protect the brain in this model and, presumably, the brain in HIV-infected individuals, a combination of approaches may lead to superior results.
The study also demonstrates that while high political interest is important in stimulating reforms, this does not always translate into quick policy decisions.
This work also demonstrates that while splicing is essential for substantial IME, in the absence of splicing low-level enhancement can be obtained.
However, the cluster tree generated also demonstrates that while vorinostat and LBH589 segregate from the vehicle-treated controls, they demonstrate very similar clustering patterns indicating that they induce similar transcriptional response within each cell line.
This work also demonstrates that while the introduction of mutations is frequent, the rate of substitution over longer time periods is many fold lower, in part due to purifying selection acting on nonsynonymous mutations.
This study also demonstrates that while political crises bring violence, destruction and disruption of people's lives and livelihoods, quality leadership and development partner support can, even in these situations, open and see through "windows of opportunity" to introduce longer term policy and systems change.
The reports also demonstrate that while an alleged crime is being documented, events that might have instigated the event often go unmentioned.
We also demonstrated that, while the terpene content of P. elisabethae increases in response to decreased UV/vis light, this is due primarily to an increase in the concentration of the dinoflagellate rather than simply an induction of terpene biosynthesis.
Ostro also demonstrated that while the drought in 2011 across the U.S. is nowhere near as extensive as it was in the Dust Bowl years of 1934 and 1936, what's unique about 2011 is the "extraordinary dichotomy of extreme wet/dry that exists in such close juxtaposition to each other" (CWG's Andrew Freedman has also written about this).
The 2018 numbers, which far exceed any previous annual propaganda distribution counts, also demonstrate that while white supremacist groups continued to target U.S. college campuses, the number of on-campus incidents increased only modestly (9%), compared to a huge (572%) jump in off-campus incidents.
Importantly, however, they also demonstrate that while the folding transition state may be conserved in homologous proteins that fold with two and three-state kinetics, the population of an intermediate can have a significant effect on the breadth of the transition state ensemble.
