The phrase "absence below" is correct and usable in written English.
It can be used in contexts where you are referring to something that is missing or not present in a lower section or part of a document or text.
Example: "Please refer to the absence below in the report, which highlights the missing data from the last quarter."
Alternatives: "lack below" or "missing below".
The reason for their absence is below-threshold parent protein coverage (the pseudogenes cover only a small fraction of their respective parents, well below the RefSeq standard for pseudogenes) and the fact that the protein matches to the pseudogenes generally excluded all or most of the homeodomain.
Competition was studied in the absence and presence of below-ground competition to test whether above-ground traits or below-ground traits had the greatest effect on competitive ability.
Histological analyses of the femur and tibia in the mutants show subtle reduction of chondrocyte numbers in epiphyseal-plate columns, reduction of matrix, and near absence of osteoid below the differentiated chondrocytes.
Imputation is not required, and instead 'missingness' is explicitly modeled as either true absence or presence below detectability, consistent with non-targeted metabolomics technology.
Eligibility criteria were: age over 18, a written consent of the patient and absence of symptoms below the elbows related to specific neck disorders.
As discussed in more detail below, absence of a barley homolog of any particular miRNA should not necessarily be interpreted as absence of this miRNA from the barley transcriptome because our dataset only represents a single tissue, namely leaf.
The pyrosequencing data confirmed the absence (or presence below the detection limit of the method) of P. gingivalis, P. gulae and P. macacae in our samples: the only Porphyromonas species identified was P. catoniae, and it belonged to relatively abundant taxa (1.2 - 5.2% of all reads).
Indicator bacteria densities that classified pathogen presence and absence groupings, were all below 100 CFU per 100 mL−100
Propane titration showed that the active site is deactivated through formation of hydroxyl groups that are stable at 550 °C and below in absence of oxygen.
In the absence of natural convection (below Rathr) the experimental thermal response curves can be successfully described by approximating solutions of the transient heat conduction equation for the spheroidal geometry of the thermistor.
