The phrase "a first possibility to" is correct and usable in written English.
It can be used when introducing an initial option or opportunity in a discussion or analysis.
Example: "This report outlines a first possibility to improve our marketing strategy by targeting a younger demographic."
Alternatives: "an initial option to" or "a primary opportunity to".
It isn't a question to be taken literally but rather, as the program note explains, as an invitation for "a third possibility" to be created "here and now".
A third possibility to assess the matching quality is comparing the pseudo R-squared before and after matching (Sianesi 2004).
As shown in the preceding subsection, by choosing the first-best fee level f*, quality becomes s(f*) = 0 and hence v(s(f*)) - s(f*) = 0. Now, a second possibility to raise the quality component of the welfare function up to zero has been established.
We believe that a third possibility to explain the constrained phenotype of mycobacteria in DCs-altered phagosome acidification - is unlikely because the phagosomal lumen is kept slightly alkaline in DCs, which allows moderate antigen degradation and proper antigen presentation [27].
A second possibility to retain sexuality is if parthenogenetic females would cross with males.
A third possibility to assess the presence of a chronic disease is presented by the variable 'maximum co-payment 1%'.
A third possibility to influence PPS arises from changes in the effectiveness of the inhibitory influence of the first response on the second response.
A second possibility to explain the higher prevalence of sequence variation in the surfaceloops is that that region of the VSG polypeptide is more tolerant of sequence variation than the remainder of the VSG polypeptide.
To unravel deregulated genes by means of GRN, a first possibility is to infer several networks independently (one for each tissue) and to compare them.
A first possibility is to satisfy the interference constraints only on average, conditioned on the available (mathbf {CSI}_{text {PU}}^{ q)}).
