In general, for the calibration of heterogeneous devices, a known and constant power level is needed as input reference [14,15].
For the stereochemical assignment of (Z)- 11a, the according (E -isomer was nE -isomera reference compound.
Because of these beneficial pharmacological effects of liriodendrin, large quantities of pure compound are needed as chemical reference standard for further pharmacological researches and further applications in pharmacy.
However, to establish the arginylation extent, in addition to the measure of arginylated peptide present in the run, a measure of the amount of β-actin in the injected sample is also needed as a reference point.
This technique is especially useful when quality sequence from a specific genomic region of high importance, e.g. a QTL associated with a large phenotypic effect, is needed as a reference for localized functional genomics studies (genomic re-sequencing, expression microarray design, RNAseq, etc).
Therefore, genomic, transcriptomic and proteomic data with robust annotation of their function and localization are urgently needed as publicly available reference databases.
In order to corroborate the ring species hypothesis, evidence of ring closure with terminal reproductive isolation is needed, as demonstrated in other reference taxa (for example, [ 18]).
Additionally because of the previous trade embargo they cannot access the textbooks and journals they need for reference, as well as order lab equipment or badly needed parts to repair existing technology.
And don't even get me started on his five-year-old textbooks that still take up space in our home -- he says he may need them as reference materials one day.
A well-annotated primary genome is required as the query while one or more reference genomes are needed as the subjects.
It is a system for conscious users to whom is given the choice of establishing his limits, using his goals and needs as reference.
