18,504 research outputs found
Initial development of eucalyptus grandis (eucalyptus) in field benefited with biochar in Sinop / MT
Coupling vortex dynamics with collective excitations in Bose-Einstein Condensates
Here we analyze the collective excitations as well as the expansion of a
trapped Bose-Einstein condensate with a vortex line at its center. To this end,
we propose a variational method where the variational parameters have to be
carefully chosen in order to produce reliable results. Our variational
calculations agree with numerical simulations of the Gross-Pitaevskii equation.
The system considered here turns out to exhibit four collective modes of which
only three can be observed at a time depending of the trap anisotropy. We also
demonstrate that these collective modes can be excited using well established
experimental methods such as modulation of the s-wave scattering length
Fontes de resistencia em feijao macassar para o controle do virus do mosaico dourado do caupi.
bitstream/item/97053/1/PAND280001.pd
Levantamento da podridão do estipe da pupunha no litoral do Paraná.
Organizado por Patricia Póvoa de Mattos, Celso Garcia Auer, Rejane Stumpf Sberze, Katia Regina Pichelli e Paulo César Botosso
Avaliação de fungicidas no controle do mal-das-folhas (Microcyclus ulei) da seringueira, em viveiro.
Objetivando o controle do mal-das-folhas (Microcyclus ulei) da seringueira, foram avaliados, em viveiro, os fungicidas Triadimefon, Carbendazim, Triforine, Dithianon, Tridemorph, nos intervalos de sete a catorze dias. Constatou-se que os fungicidas Triadimefon e Triforine, nas doses e intervalos testados, foram os tratamentos mais eficazes. Carbendazim e Dithianon apresentaram um baixo nivel de eficiencia. Tridemorph foi toxico nas doses utilizadas
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