Yuya Hasegawa

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The present study experimentally examines how an electron vortex beam with orbital angular momentum (OAM) undergoes diffraction through a forked grating. The nth-order diffracted electron vortex beam after passing through a forked grating with a Burgers vector of 1 shows an OAM transfer of nℏ. Hence, the diffraction patterns become mirror asymmetric owing(More)
In this study we investigated whether κ-opioid receptor stimulation by dynorphin A (1-13), a potent fragment of endogenous peptide, attenuated repeated stress-induced behavioral impairments in mice. In order to reduce the motivation to escape, mice were preexposed to inescapable electric footshock (day 0), and then dynorphin A (1-13) was administered to(More)
An on-site determination method for trace arsenic has been developed by collecting it as molybdenum blue (MB) in the presence of tetradecyldimethylbenzylammonium chloride on a mixed cellulose ester membrane filter and by measuring reflection absorbance (RA) of MB on the filter using a laboratory-made palm-top size reflection-absorbance colorimeter with a(More)
We report the production of electron vortex beams carrying large orbital angular momentum (OAM) using micro-fabricated spiral zone plates. A series of the spherical waves, focussing onto different positions along the propagating direction of the electron beam, were observed. The nth order vortex beam has an OAM n times larger than that of the first-order(More)
A single-inductor dual-output wireless power delivery system for small size battery-less NAND flash memory card is presented. The power delivery system uses two rectifiers connected to a single inductor which is synchronously switched by pseudo-random-sequence PWM signal with induced AC voltage. The power delivery system can generate 8 V and 16 V with peak(More)
In this study, we gave the soybean powder-added food pellets (soybean pellets) to investigate anti-anxious effects of soybean in male mice. Twenty eight days after feeding control pellets or soybean pellets, we observed the behavioral changes in the elevated plus maze. There was no significant difference on the time spent in the open arms (%) between mice(More)
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