Satoshi Kodama

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Hippocampal pyramidal neurons express various extrasynaptic glutamate receptors. When glutamate spillover was facilitated by blocking glutamate uptake and fast synaptic transmission was blocked by antagonists of AMPA- and NMDA-type glutamate receptors and an ionotropic GABA receptor blocker, repetitive synaptic stimulation evoked a persistent membrane(More)
Power spectral analysis of the EEG at the neonatal period was performed in 50 premature babies and 36 mature babies. The gestational age ranged from 26 to 40 weeks, and birth weight from 762 g to 3,232 g. All EEGs were recorded when the babies reached to 37-41 weeks of conceptional age, and analyzed using fast Fourier transformation. The relative power in(More)
We reported previously that plateau potentials mediated by extrasynaptic N-methyl-d-aspartate receptors (NMDARs) can be induced either by synaptic stimulation in the presence of glutamate transporter antagonist or by iontophoresis of NMDA in rat hippocampal CA1 pyramidal neurons. To examine whether the plateau potentials are accompanied by an elevation of(More)
Using in vivo (31)P magnetic resonance spectroscopy, phosphorus metabolite levels were measured in the temporal lobes of 11 neuroleptic-free subjects with schizotypal personality disorder (SPD) and 20 age-matched healthy subjects. SPD subjects showed smaller amounts of phosphomonoesters in the left temporal lobe than healthy subjects. Membrane phospholipid(More)
Seven different transition metal oxides and CuO) have been investigated for oxidation of diesel particulate matter (PM) under plasma discharge conditions. The experiments were carried out by measuring PM oxidation rates over each catalyst using a batch-type dielectric barrier discharge reactor. It was found that TiO 2 , ZnO, V 2 O 5 , and Fe 2 O 3 can(More)
The discharge properties and chemical reactions in plasma discharges using dielectric (alumina Al 2 O 3) barrier discharge (DBD) reactors supported with Fe 2 O 3 and TiO 2 catalyst layers have been characterized. Ozone (O 3) was used as a probe substance to monitor the chemical reactions driven by plasma discharges. The light emission from discharge gaps of(More)
SUMMARY This paper reviews the operation, design, and performance of the uni-traveling-carrier-photodiode (UTC-PD). The UTC-PD is a new type of photodiode that uses only electrons as its active carriers and its prime feature is high current operation. A small signal analysis predicts that a UTC-PD can respond to an optical signal as fast as or faster than a(More)