The phrase "observed instances" is grammatically correct and can be used in written English.
It refers to specific examples or occurrences that have been witnessed or noticed. Example: The scientists recorded observed instances of the new species in its natural habitat.
At the same time, we observed instances of the teacher supporting historical reading, and of unprompted student participation in historical thinking and questioning.
In the course of his researches, Darwin had observed instances of self-sacrifice and devotion throughout the animal kingdom.
In at least fifteen cases, the roof sheared cleanly from the walls along the connection between the two, and in a further seven observed instances the wall was broken along the mortar-block interface.
We also observed instances of branched muscle fibers (Figure 6D).
We observed instances of some trunk ISAs reaching the dorsal somite margin and initiating longitudinal branching prior to ISAs located anteriorly, indicating that timing of ISA remodelling is not absolute and is a highly dynamic process.
We observed instances where aggression from a nestmate immediately preceded departure on 17 nests, but this was no more likely to occur on nests containing unrelated subordinates than other nests (χ2 (Yates' correction) = −1.75, d.f.
This represents a different situation from a previously observed instance of stem cell competition, where stem cells in the ovary that cannot differentiate eventually replaced their wild-type neighbors (Jin et al, 2008).
Recent studies of BRCA1 have failed to observe instances of LOH through hypermethylation, suggesting that it might be a very rare event [ 38, 39].
Moreover, we also observe instances of coupled action of selection among different noncoding genomic elements of particular pathways, with most Parkinson regulatory elements, for instance, evolving at consistently lower levels.
Importantly, in this ensemble of 50 simulations we observed multiple instances of spontaneous inward release of Na+/Na2, the Na+ ion from the Na2 site.
Over two days in the Maharashtran city Jalgaon, I observed three instances where Jains specifically referred to God on a personal level.
