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19  Articles
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This experimental research was performed to observe the influence of an agricultural liquid organic fertilizer called Bio Ferti on the growth and biomass of Spirulina platensis, aiming at replacing inorganic fertilizer with the liquid organic one. Th... see more

The 2016 Physics Nobel Prize honors a variety of discoveries related to topological phases and phase transitions. Here we sketch two exciting facets: the groundbreaking works by John Kosterlitz and David Thouless on phase transitions of infinite order, an... see more

No presente artigo é dada uma visão histórica desde a hipótese de Oparin-Haldane até o surgimento da Química Prebiótica. Diversos aspectos da Química Prebiótica são discutidos tais como: os ambientes onde poderiam ter ocorrido a síntese abiótica de biomol... see more

To enhance the digestion rate of a landfill leachate in the anaerobic packed bed reactor, a natural zeolite and sugarcane bagasse fly ash (BFA) were tested as the immobilization media. In order to scale up this process and systematically optimize the reac... see more


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Bacteria play an important role in oxidation and stabilization of organic and inorganic matterin wastewater treatment plant. This paper presents the development of mathematical model to study theeffect of chromium on heterotrophic bacteria in waste stabil... see more

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