نتایج جستجو برای: malthus

تعداد نتایج: 322  

Journal: :Academia letters 2021

The paper was suggested by a brief note of the second author about application Hubbert curve to predict decay resource exploitation. A further suggestion came from interpretation in terms specific Lotka Volterra (LV) equation. link with population dynamics obvious as logistic function and LV equation were proposed within demography science field. Mathematical has history two centuries. first pr...

Journal: :PLoS Medicine 2004
Colin D Butler

192 T he issue of human overpopulation has fallen out of favor among most contemporary demographers, economists, and epidemiologists. Discussing population control has become a taboo topic. Yet, this taboo has major implications for public health. The silence around overpopulation prevents the global health community from making the necessary link between the planet's limited ability to support...

2007
YANG KUANG BINGGEN ZHANG TAO ZHAO Y. KUANG B. G. ZHANG T. ZHAO

This paper is devoted to the systematic study of some qualitative properties of solutions of a nonautonomous nonlinear delay equation, which can be utilized to model single population growths. Various results on the boundedness and oscillatory behavior of solutions are presented. A detailed analysis of the global existence of periodic solutions for the corresponding autonomous nonlinear delay e...

Journal: :Current Biology 2008
Nigel Williams

The biologist Paul Ehrlich came to public attention in 1968 with the publication of his book, The Population Bomb. Worries about the potential problems of a soaring global population had boiled and cooled over previous decades. And the issue had become so enmeshed with political decisions that many just wished to ignore it. The warnings of Thomas Malthus, the eighteenth century writer who had h...

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