The phrase "addition of groups" is correct and usable in written English.
It can be used in contexts involving mathematics, statistics, or organizational structures where groups are being combined or added together.
Example: "The addition of groups in the study allowed for a more comprehensive analysis of the data."
Alternatives: "combination of groups" or "merging of groups".
But the addition of groups like ETC to the nanotechnology debate brings in experienced skeptics of industry's motives and strong backers of increased government regulation.
People may best remember Snap in 2016 for Spectacles, its glasses with a built-in camera, but the addition of groups seems significantly more impactful.
The addition of groups you belong to also shows off your interests to others, so that they can ping you when they have a question on a specific topic, like HTML5 design for example.
However, in our study the addition of groups to the type of fracture did not show any significant decrease in the mean kappa value (κ = 0.49 resp. κ = 0.48).
Now the startup, which came out of Y Combinator's winter 2009 class, is making it easier for people who share interests (e.g. photography) or have another connection with each other (e.g. alumni who've attended the same university) to share travel accommodation and recommendations thanks to the addition of Groups.
Public opinion, demonstrations, legislators, courts and presidents have forced the addition of groups to the protected list one-by-one.
Another change is the addition of group office hours.
As indicated in Fig. 3, the addition of group 1 dipeptides (see Fig. 1) did not impair growth rates, even showing a slight improvement for AQ.
We also verify that our results are robust to a battery of checks that include the use of different control groups, different re-weighting techniques, and the addition of group-specific time fixed effects (details in Section 5).
Our results are robust to the battery of robustness checks described in Section 5 that include the use of different control groups, different reweighting methods, and the addition of group-specific time fixed effects.
Modifications to the original assays by the addition of group-specific inhibitors are presented to ensure the specificity of the assays and to further differentiate between recently identified PLA2s.
