Buscar
Mostrando ítems 1-10 de 175
Pumping charge with ac magnetic fluxes and the dynamical breakdown of Onsager symmetry
(American Physical Society, 2013-03-11)
We study the transport properties of setups with one and two mesoscopic rings threaded by ac magnetic fluxes of the form Φ(t)=Φdc+Φaccos(Ω0t+δ) and connected to two different particle reservoirs. We analyze the conditions ...
Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling
(2014)
We consider the generation of a pure spin-current at zero bias voltage with a single time-dependent potential. To such end we study a device made of a mesoscopic ring connected to electrodes and clarify the interplay between ...
Turbulent magnetic pumping in a Babcock-Leighton solar dynamo model
(EDP SCIENCES S A, 2008)
Context. The turbulent pumping effect corresponds to the transport of magnetic flux due to the presence of density and turbulence gradients in convectively unstable layers. In the induction equation it appears as an advective ...
Effects of PKCα activation on Ca2+ pump and K(Ca) channel in deoxygenated sickle cells
(1997)
We have previously shown that a pretreatment with phorbol 12-myristate 13-acetate (PMA), an activator of protein kinase C (PKC), reduced deoxygenation-induced K+ loss and Ca2+ uptake and prevented call dehydration in sickle ...