In contrast to the volume-dose limits, some of the dose limits are posed in terms of the maximum allowed point dose, and these are located in column six. No dose limit has an entry in both columns five and six; they are mutually exclusive.t must be noted that dose tolerance limits and dose-volume histogram (DVH) analysis only show part of the overall situation. The location where the high dose occurred could sometimes be more important than how high the dose is.
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In chemical kinetics, the order of reaction with respect to a given substance (such as reactant, catalyst or product) is defined as the index, or exponent, to which its concentration term in the rate equation is raised. For the typical rate equation of form, where [A], [B], ...or a typical second-order reaction with rate equation, if the concentration of reactant B is constant then, where the pseudoâfirst-order rate constant. The second-order rate equation has been reduced to a pseudoâfirst-order rate equation, which makes the treatment to obtain an integrated rate equation much easier.