Verb. 1. impel-urge or force (a person) to an action; constrain or motivate. force. cause, do, make-give rise to; cause to happen or occur, not always intentionally; cause a commotion; make a stir; cause an accident.= force) â noetigen; nÃ¶tigen to impel somebody to do â something (jdn) dazu, noetigen nÃ¶tigen etw; zu tun to (impel)somebody in â to action Jdn zum. (= handeln noetigen) â (nÃ¶tigen)drive. on voran treiben
1 Ratio of the salt to the acid or base. 2  The buffer capacity is optimal when the ratio is 1:1; that is, when pH = pKa. 3  Total buffer concentration. 4  For example, it will take more acid or base to deplete a 0.5 M buffer than a 0.05 M buffer.
One way to develop a model that incorporates a carrying capacity is to make the reproduction be proportional not only to the population size but also to the fraction of unused carrying capacity. The resulting model is the logistic model for population growth. Let $P_t$ denote the population size in time period $t$. Let $M$ be the carrying capacity, which is the population size that the environment can support. Then, $\ 1 displaystyle \frac{P_t}{M}$ is the fraction of the carrying capacity that is used, and. $\ 2 displaystyle 1 - \frac{P_t}{M}$ is the unused fraction of the carrying capacity.