13,451 research outputs found

    Como a Artrite Encefalite Caprina (CAE) pode prejudicar sua produção.

    Get PDF
    bitstream/item/92861/1/Midia-Como-a-Artrite-Encefalite-Caprina.pd

    Adiabatic Charge Pumping through Quantum Dots in the Coulomb Blockade Regime

    Full text link
    We investigate the influence of the Coulomb interaction on the adiabatic pumping current through quantum dots. Using nonequilibrium Green's functions techniques, we derive a general expression for the current based on the instantaneous Green's function of the dot. We apply this formula to study the dependence of the charge pumped per cycle on the time-dependent pumping potentials. The possibility of charge quantization in the presence of a finite Coulomb repulsion energy is investigated in the light of recent experiments.Comment: 11 pages, 10 figure

    Universal Grammar

    Get PDF
    We are interested in creating a universal grammar structure, so that learning languages becomes a much easier task than it is now. We obviously cannot dream of having all languages on earth adopting this universal grammar, so that this is at most for those languages that are associated with our occidental style of writing. The Brazilian and Portuguese peoples decided to unify their language once and then reached several agreements which formed the new language, basically. With this, Brazilian Portuguese and Portuguese Portuguese became almost the same thing. In the same way, we could have all languages that adopt the occidental style of writing sharing the same grammar structure. This paper is then about a dream, but, because of the experience with the Portuguese language, we know that this is an achievable dream
    • …
    corecore