The phrase "and positioned by a" is correct and usable in written English.
It can be used when describing the placement or arrangement of an object or person in relation to something else.
Example: "The sculpture was carefully crafted and positioned by a skilled artist in the center of the gallery."
Alternatives: "and arranged by a" or "and located by a".
The system we study is a planar rotor supported by aerostatic suspension and positioned by a radial magnetic bearing of nanometer precision.
Activity occurred spontaneously but was also initiated by gently applying a touch stimulus to the head with a tungsten pin controlled and positioned by a manual micromanipulator (MX130, Siskiyou, Grants Pass, OR).
Although within the central heterochromatin a limited set of RH sequence blocks could still be aligned to DM superscaffold 33 and positioned by a single FISH anchor, a credible ordering of the remaining large volume of RH and DM sequence blocks in this region was not possible.
Go!" The "clay" happened to be other students, who were poked and positioned by their classmates in a rapid series of exercises designed to reflect shifting emotions, from sorrow and pain to happiness and excitement.
In addition, Gln96 is held in place by a hydrogen bond with Tyr204 and Arg60 is positioned by a hydrogen bond with Ser205 (Fig. 2A).
mentions of genes, associated with EntrezGene ids, using NCBI's GenNorm tool (this differs from the initial experiment, which relied on NCBI-provided gene annotations in gene2pubmed), and mentions of mutations, identified and encoded as wild type, mutation type and position by a modified and updated version of UMBC's EMU tool (as in our initial experiment).
Each plate was automatically removed from the incubator and was positioned by the RoMa arm in a predefined space on the plate rack and the lid removed.
Male mice ages 2 4 months were anesthetized with ketamine and xylazine by i.p. injection and positioned in a stereotaxic frame.
We completely changed the paradigm of strain sensing (and position) by suggesting a novel strategy that precludes nano-, micro-, and macro-device patterns, and thereby achieved a tremendously low-cost e-skin.
We assumed positions within concordant intervals as actual positives and positions determined by a significance cutoff as predicted positives.
We tested the ability of AIP representations to encode different object orientations and positions by presenting the model with a cylinder of a given size at various orientations and positions (Fig. 12).
