We investigate optimal policy for a predator-prey system with age-dependent.

研究一类具有年龄结构的捕食-食饵种群动力系统的最优收获策略。

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In this paper, we consider a class of predator-prey system with functional responses.

本文讨论了一类具有功能反应函数的捕食食饵模型。

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In this paper, we studied the existence and uniqueness of limit cycle or the predator-prey system (l), and obtained theorems 1, 2, 3.

本文研究捕食—食饵系统(1)极限环的存在唯一性，得到了文中的定理1、2、3。

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Appropriate for a species that is both predator and prey, System One lives in a world of snap judgments, extensible metaphors, ill-informed biases, and loosely constructed rules of thumb.

FORBES: Thinking Fast, Slow And Not At All

Even patient navigation, Freeman says, falls prey to our fragmented system -- one filled with specialists that each operate in a separate universe.

CNN: Helping patients navigate the health care system

People who remain outside the banking system often fall prey to predatory lenders and to the high charges levied by wire-transfer services, with little recourse when they are abused.

ECONOMIST: Banking for immigrants