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1. We investigated the inhibitory effect of KB-R7943 on 'bi-directional' Na+/Ca2+ exchange current (iNCX) with the reversal potential of iNCX (ENCX) in the middle of the ramp voltage pulse employed. 2. Bi-directional iNCX was recorded with 'full' ramp pulses given every 10 s from the holding potential of -60 mV over the voltage range between 30 and -150 mV(More)
We investigated effects of a novel cardioprotective drug, JTV-519 (4-[3-(4-benzylpiperidin-1-yl)propionyl]-7-methoxy-2,3,4,5-tetrahy dro-1,4-benzothiazepine monohydrochloride) on membrane currents of guinea pig ventricular myocytes by whole-cell voltage and current clamp methods. The fast Na+ current (iNa) was activated by ramp pulses from various holding(More)
To achieve diversity with a single antenna, a fractional sampling (FS) scheme in OFDM has been investigated. In addition, to obtain more diversity gain through FS, a sampling point selection (SPS) scheme has been proposed. However, it requires a large number of multiplication operations for the SPS. This leads to large power consumption and costs for(More)
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