17,278 research outputs found
Marcadores moleculares como ferramentas para estudos de genética de plantas.
bitstream/CNPA/18326/1/DOC147.pd
Métodos de predição do comportamento de populações de melhoramento.
Algodão; Melhoramento genéticobitstream/CNPA/19713/1/DOC108.PD
Effects of linker and liposome anchoring on lactose-functionalized glycomacromolecules as multivalent ligands for binding galectin-3
Comparison of different breath-by-breath gas exchange algorithms using a gas exchange simulation system
Strong spin-orbit splitting on Bi surfaces
Using first-principles calculations and angle-resolved photoemission, we show
that the spin-orbit interaction leads to a strong splitting of the surface
state bands on low-index surfaces of Bi. The dispersion of the states and the
corresponding Fermi surfaces are profoundly modified in the whole surface
Brillouin zone. We discuss the implications of these findings with respect to a
proposed surface charge density wave on Bi(111) as well as to the surface
screening, surface spin-density waves, electron (hole) dynamics in surface
states, and to possible applications to the spintronics.Comment: 4 pages 2 figure
Avaliação da peroxidase como indicativo de viabilidade do pólen de Gossypium sob diferentes condições de exposição ao sol.
Aplicabilidade de marcadores SSR em estudos genéticos em Gossypium Mustelinun Miers.
bitstream/CNPA/20279/1/COMTEC345.pd
Optical spin pumping of modulation doped electrons probed by a two-color Kerr rotation technique
We report on optical spin pumping of modulation electrons in CdTe-based
quantum wells with low intrinsic electron density (by 10^10 cm^{-2}). Under
continuous wave excitation, we reach a steady state accumulated spin density of
about 10^8 cm^{-2}. Using a two-color Hanle-MOKE technique, we find a spin
relaxation time of 34 ns for the localized electrons in the nearly unperturbed
electron gas. Independent variation of the pump and probe energies demonstrates
the presence of additional non-localized electrons in the quantum well, whose
spin relaxation time is substantially shorter
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