Although transition metals are essential for Chlamydomonas growth, the minimum required concentrations are presumably much lower than those provided by the Hutner solution.
This suggests a Hill-type model, U pd = U i (EAA j ; V pd, β a, ), with being the minimum required concentrations of the j ∈ [1, 2,..., 20] intracellular EAAs (given, for instance, by [ 35, 43]).
Overall, the results indicated that within one week after the first dose, the majority of patients had plasma concentrations above 7.5 ng/mL, the minimum required plasma paliperidone concentration associated with a central D2-receptor occupancy of approximately 60% (Karlsson et al., 2006) that is generally considered the threshold for antipsychotic efficacy.
The cells maintain the free iron concentration to a minimum required level to avoid toxic effects of excess iron.
Sorting trash requires concentration.
Restaurants require concentration and timing.
This new scaling differs from the classical interpretation of the coil overlap concentration c∗ or entanglement concentration ce as the minimum concentration required to increase the viscosity of the spinning dope, and rationalizes the surprising spinnability of high molecular weight polymers at concentrations much lower than ce.
In healthy adult volunteers, telavancin at 7.5 15 mg/kg/day administered as an i.v. infusion displayed linear pharmacokinetics, with an elimination half-life (t½) averaging 7 h and trough plasma concentrations exceeding the minimum concentration required to inhibit the growth of 90%% of organisms for key Gram-positive pathogens [ 7, 8].
Critical micelle concentration (CMC) defined the minimum concentration required for micelle formation, indicating the efficacy of surfactants.
