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43 results on '"Iriyama, Satoshi"'

4. Generalized Quantum Turing Machine and its Application to the SAT Chaos Algorithm

Author

Iriyama, Satoshi, Ohya, Masanori, and Volovich, Igor

Subjects
Quantum Physics
Abstract

Ohya and Volovich have proposed a new quantum computation model with chaotic amplification to solve the SAT problem, which went beyond usual quantum algorithm. In this paper, we generalize quantum Turing machine, and we show in this general quantum Turing machine (GQTM) that we can treat the Ohya-Volovich (OV) SAT algorithm., Comment: 19 pages

Published
2004

5. Estimation of Complexity for the Ohya-Masuda-Volovich SAT Algorithm

Author

Akashi, Shigeo and Iriyama, Satoshi

Subjects
Quantum Physics
Abstract

Ohya and Volovich have been proposed a new quantum computation model with chaos amplification to solve the SAT problem, which went beyond usual quantum algorithm. In this paper we study the complexity of the SAT algorithm by counting the steps of computation algorithm rigorously, which was mentioned in the paper [1,2,3,5,7]For this purpose, we refine the quantum gates treating the SAT problem step by step.

Published
2003

7. Polynomial Time Quantum Algorithm for Search Problem and Its Application

Author

Iriyama, Satoshi, Ohya, Masanori, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Atmanspacher, Harald, editor, Haven, Emmanuel, editor, Kitto, Kirsty, editor, and Raine, Derek, editor

Published
2014
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14. Cold-restraint stress–induced ultrasonic vocalization as a novel tool to measure anxiety in mice

Author

Yamauchi, Tsugumi, primary, Yoshioka, Toshinori, additional, Yamada, Daisuke, additional, Hamano, Takumi, additional, Ohashi, Misaki, additional, Matsumoto, Maki, additional, Iio, Keita, additional, Ikeda, Maika, additional, Kamei, Masato, additional, Otsuki, Takaya, additional, Sato, Yasuo, additional, Nii, Kyoko, additional, Suzuki, Masashi, additional, Ichikawa, Hiroko, additional, Nagase, Hiroshi, additional, Iriyama, Satoshi, additional, Yoshizawa, Kazumi, additional, Nishino, Shoichi, additional, Miyazaki, Satoru, additional, and Saitoh, Akiyoshi, additional

Published
2021
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43. Cold-Restraint Stress-Induced Ultrasonic Vocalization as a Novel Tool to Measure Anxiety in Mice.

Author

Yamauchi T, Yoshioka T, Yamada D, Hamano T, Ohashi M, Matsumoto M, Iio K, Ikeda M, Kamei M, Otsuki T, Sato Y, Nii K, Suzuki M, Ichikawa H, Nagase H, Iriyama S, Yoshizawa K, Nishino S, Miyazaki S, and Saitoh A

Subjects
Animals, Anxiety drug therapy, Anxiety etiology, Anxiety psychology, Male, Mice, Mice, Inbred C57BL, Ultrasonics, Anti-Anxiety Agents pharmacology, Anti-Anxiety Agents therapeutic use, Vocalization, Animal
Abstract

Ultrasonic vocalization (USVs) is a promising tool to measure behavioral anxiety in rodents as USV recording is noninvasive, behaviorally relevant, ethological, and reproducible. Studies reporting the effects of stress-induced USVs in adult mice remain limited and debated. We investigated the conditions under which mice emit aversive USVs and evaluated the effects of psychiatric drugs on stress-induced USVs. Male C57BL/6J mice were used. USVs during entire stress sessions were recorded according to their frequency. To investigate the effect of psychiatric drugs on USVs, the number of USVs under cold-restraint stress conditions before and after drug administration was compared. Immediately after stress exposure, blood samples were collected and plasma corticosterone levels were measured. The combination of cold and restraint stress conditions significantly increased the USV numbers and plasma corticosterone levels compared with each stress alone. A benzodiazepine anxiolytic (midazolam) and δ-opioid receptor agonist putative anxiolytic (KNT-127) significantly reduced the stress-induced USV number and plasma corticosterone levels; however, a monoaminergic antidepressant (duloxetine) and N-methyl-D-aspartic acid receptor antagonist antidepressant (ketamine) did not reduce the USV numbers. No changes were noted in the USV numbers after repeated exposure to cold-restraint stress on days 1 and 3. The suppressive effect of midazolam on day 3 was comparable to that on day 1. Stress-induced USV may be used as a quantitative measure of anxiety to systematically assess the effects of anxiolytics. Therefore, cold-restraint stress-induced USVs may be used as a novel tool to measure rodent anxiety and as a useful anxiolytic-screening system.

Published
2022
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