The phrase "are specifically necessary" is correct and usable in written English.
It can be used when emphasizing the importance or requirement of certain elements in a particular context.
Example: "The following resources are specifically necessary for the successful completion of the project."
Alternatives: "are essential" or "are required".
However, a full understanding why different brain parts are active when subjects engage in different specific cognitive tasks (see Fig. 1), why the same areas are specifically necessary for performing well on these tasks, and, more generally, why the contributions of cortical areas are so specific, has so far not been reached.
A third goal of our studies was to identify novel genes which are specifically necessary for the core sporulation process.
Such pattern suggests that processes represented by these modules are specifically necessary in hyperplastic cells, and so the suitable genes are upregulated and coregulated to serve their need.
Together, these results indicate that one or more of the eight genes in this newly identified locus are specifically necessary for the core sporulation process.
In fact, this study revealed that distinct groups of OsWAKs have evolved in rice, suggesting unique roles for these have evolved, that are specifically necessary only in rice (compared to Arabidopsis; [ 75]).
b) In order to truly test the hypothesis that D1R or A2aR activation are specifically necessary in dMSNs vs. iMSNs, the authors should also examine the effects of antagonizing D1Rs or A2aRs separately, and also separate out recordings from dMSNs and iMSNs, rather than lumping all four conditions (2 cell types x 2 receptor antagonists) together as has been done in Figure 4G.
It has been proved based on statistical data that hydraulic pump has a higher fault probability over other mechanical systems, thus, it is specifically necessary to investigate and conduct fault detection techniques for hydraulic pump.
Sphingolipid analyses indicated that Bar1 is specifically necessary for the production of glucosylceramides in both F. graminearum and Aspergillus nidulans.
However, in the glucosylceramide-producing yeast species Kluyveromyces lactis, Lac1 is specifically necessary for the production C 18 sphingolipids, including glucosylceramide [17].
Conversely, our experiments of cell motility indicate that T198 phosphorylation is specifically necessary for p27 to function as a modulator of cell motility, favoring its binding to the microtubules destabilizing protein stathmin.
