The word emerging can have fine variations in meaning. In this context, it most nearly means becoming known, which is what the research is doing which contributes to the NAD making this statement. The word emerging can mean moving out, but this meaning does not make sense in this context. Yes, the research is transpiring, as well, but the mere fact that it is "happening" is not what makes the NAD take notice. The definition coming into view is just not as specific and appropriate when describing research.