The phrase "availability fraction" is correct and usable in written English.
It can be used in contexts related to statistics, reliability engineering, or performance metrics to describe the proportion of time a system is available for use.
Example: "The availability fraction of the server was calculated to ensure it met the required uptime standards."
Alternatives: "availability ratio" or "uptime percentage".
Unresolved issues include the identities of all genes exhibiting altered transcription in response to iron and heme availability, the fraction of such genes functioning in iron/heme acquisition, and the heterogeneity of this gene set among clinical isolates.
*Control n numbers varied in the following assays due to limited tissue availability (soluble fraction: total α-syn: midfrontal n = 13, cingulate n = 10, parahippocampal n = 16, thalamus n = 16; pSer129 α-syn: midfrontal n = 5, cingulate n = 12, parahippocampal n = 14; Aβ42: midfrontal n = 13, cingulate n =16; Aβ40: midfrontal n = 9, cingulate n = 14, parahippocampal n = 16).
Assessment of biologically available fractions of heavy metals helps to evaluate their potential for mobilization and availability to benthic organisms (Rodrigues et al. [2010]).
The availability or fractions of active sweeps were used for calculation of voltage-dependent activation.
Therefore, we suggest that PFM is beneficial for reducing P remaining in soil and promoting inorganic P fraction availability to crops in semi-arid areas.
Under stress conditions (i.e., low eIF2 availability), a larger fraction of 40S subunits scan past the second uORF initiation codon before binding of the TC, thereby enabling reinitiation at the next ORF.
The availability of purified fractions of chromosomes greatly simplifies the analysis of complex genomes and enables experimental approaches and studies which otherwise would not be realistic.
Light availability explained a significant fraction of the variation in species richness also on conventionally managed field margins (r2 = 8%).
The primary production in coastal habitats sometimes reaches very high levels resulting into availability of a great fraction of organic matter for consumers as detritus even after consumption of herbivores (Newell [1982]).
This metabolic versatility combines well with the demand for cheap production of biofuels, since the feeding substrate (and its availability) represents a relevant fraction of the overall costs.
