The phrase "a substantially positive" is correct and usable in written English.
It can be used to describe something that is largely or significantly favorable or beneficial in a particular context.
Example: "The study yielded a substantially positive outcome, indicating that the new treatment was effective."
Alternatives: "a significantly positive" or "a largely positive".
Carbon atoms neighbouring N-atoms incorporated due to doping, possess a substantially high positive charge density to equipoise the strong electron affinity of the nitrogen atom.
The more conservative opiate dependence cutoff score of 7 was shown to have a substantially higher positive predictive potential than 4, with only a slight decrease in negative predictive potential (NPP).
CEA expression in the transitional mucosa adjacent to ND tumours was negatively correlated with tumour differentiation, whereas epithelial IgA and SC in this zone showed a substantially higher positive correlation with tumour differentiation, and a somewhat stronger negative correlation with Dukes' stage in the ND than in the AN group.
This means the lump-sum rebate given by the state of California through its California Solar Initiative is almost entirely profit for the consumer, leaving the present value of an installed watt of photovoltaic generation capacity as substantially positive.
(In some cases you can have a negative 1-year ROI to increase market share, assuming the multi-year ROI is still substantially positive. However, this can be an expensive strategy that is best employed by more mature businesses with stable and predictable metrics).
Table 5 illustrates that when school quality and studenteffort are strong complements in production (ϱ = 2 in thetable) then the elasticity difference of Δ11 may be substantially positive (as for Δ in themodel with a single subject) and ε ̂ 12 may be substantially negative.
The larger point is that because Mr. Santorum was so far behind in New Hampshire and South Carolina, he needs continued, substantially positive momentum to perform well in those states and become a serious threat to Mitt Romney for the Republican nomination.
The degree of linear polarization in comets is substantially positive at α > 30°.
When s and h are strong complements in productionΔ may be substantially positive.
