Estado nutricional de porta-enxertos de cajueiro anão precoce (CCP-76) desenvolvidos em campo, sacos plásticos e tubetes.

bitstream/CNPAT-2010/11940/1/Pa-068.pd

Produção hidropônica de mudas de tomateiro em substratos orgânicos.

bitstream/item/42503/1/RT10005.pd

Produção de mudas de alface em sistema hidropônico.

bitstream/item/55492/1/COT11020.pd

Self-Forces on Electric and Magnetic Linear Sources in the Space-Time of a Cosmic String

In this paper we calculate the magnetic and electric self-forces, induced by the conical structure of a cosmic string space-time, on a long straight wire which presents either a constant current or a linear charge density. We also show how these self-forces are related by a Lorentz tranformation and, in this way, explain what two different inertial observers detect in their respective frames.Comment: 10 pages, LaTeX, to be published in Phys. Rev. D