The phrase "a direct concentration" is correct and usable in written English.
It can be used when referring to a focused or intense effort or attention on a specific subject or task.
Example: "The research team demonstrated a direct concentration on the effects of climate change in their latest study."
Alternatives: "a focused effort" or "an intense focus".
In insects such as Drosophila, Wolbachia germline localization requires a direct concentration at the embryonic pole cells, the germline precursors.
In addition, we found a direct concentration effect, whereby the slope of the linear exposure response relationship increased with arsenic concentration.
Our results suggested a direct concentration effect from inhaled inorganic arsenic, whereby the excess relative risk for a fixed cumulative exposure was greater when delivered at a higher concentration and shorter duration than when delivered at a lower concentration and longer duration.
In addition, we found a direct concentration effect on the exposure response relationship, indicating that for a fixed level of cumulative arsenic exposure, inhalation of higher concentrations of arsenic over shorter durations was more deleterious than inhalation of lower concentrations over longer durations.
The assay for 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity indicated that EGCG had a direct, concentration-dependent antioxidant activity.
CM_128 was found to inhibit ICRAC in a direct concentration-dependent manner, with IC50 at approximately 0.1 μmol/L and no loss of effect at high concentrations (10 μmol/L).
The GEIS and optical reflectivity measurements being not a direct Er concentration measurement, we resorted to energy dispersive spectroscopy by scanning electron microscopy (SEM-EDS) measurements to gain direct access to the presence of Er within the porous layer.
Phages were isolated following culture enrichment or direct concentration methods.
For Ca2+ an opposite directed concentration gradient exists.
The OLS GV is a direct fit to concentration and Tk-GV is an inverse solution, virtual concentration fit, and which methods have errors in opposite directions when applied to only 90 min of data.
With regard to lung tissue concentrations, our observed decrease in plasma concentration had a direct impact on pulmonary concentrations measured four hours after administration.
