4,443 research outputs found
Geração e difusão de inovações agropecuárias no Brasil: a experiência da EMBRAPA com ênfase na pequena produção.
Missao institucional e prioridades da EMBRAPA; Modelo institucional/articulacao pesquisa x extensao rural; O enfoque da EMBRAPA em relacao ao pequeno produtor.bitstream/item/36480/1/Geracao-e-difusao-de-inovacoes.pd
Casimir Effect in the Rainbow Einstein's Universe
In the present paper we investigate the effects caused by the modification of
the dispersion relation obtained by solving the Klein-Gordon equation in the
closed Einstein's universe in the context of rainbow's gravity models. Thus, we
analyse how the quantum vacuum fluctuations of the scalar field are modified
when compared with the results obtained in the usual General Relativity
scenario. The regularization, and consequently the renormalization, of the
vacuum energy is performed adopting the Epstein-Hurwitz and Riemann's zeta
functions.Comment: 15 pages, 1 figure. To appear in Europhysics Letter
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