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Ueda H, Katakami S, Okada M, Yoshida S, Nakai Y, Mito T, Mizumaki M. Efficient NMR measurement and data analysis supported by the Bayesian inference: The case of the heavy fermion compound YbCo 2Zn 20. J Magn Reson 2023; 357:107585. [PMID: 37952430 DOI: 10.1016/j.jmr.2023.107585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023]
Abstract
We propose a data-driven technique to infer microscopic physical quantities from nuclear magnetic resonance (NMR) spectra, in which the data size and quality required for the Bayesian inference are investigated. The 59Co-NMR measurement of YbCo2Zn20 single crystal generates complex spectra with 28 peaks. By exploiting the site symmetry in the crystal structure, the isotropic Knight shift Kiso and nuclear quadrupole resonance (NQR) frequency νQ were respectively estimated to be Kiso=0.7822±0.0090% and νQ=2.008±0.016 MHz (T=20 K and H≃10.2 T) by analyzing only 30 data points from one spectrum. The estimated νQ is consistent with the precise value obtained in the NQR experiment. Our method can significantly reduce the measurement time and the computational cost of data analysis in NMR experiments.
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Affiliation(s)
- H Ueda
- Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - S Katakami
- Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - M Okada
- Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan.
| | - S Yoshida
- Department of Material Science, Graduate School of Science, University of Hyogo, Ako-gun, Hyogo, 678-1297, Japan
| | - Y Nakai
- Department of Material Science, Graduate School of Science, University of Hyogo, Ako-gun, Hyogo, 678-1297, Japan
| | - T Mito
- Department of Material Science, Graduate School of Science, University of Hyogo, Ako-gun, Hyogo, 678-1297, Japan
| | - M Mizumaki
- Faculty of Science, Course for Physical Sciences, Kumamoto University, Kurokami, Kumamoto 860-8555, Japan
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2
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Yoshida S, Shiraishi K, Mito T, Sayama K. Vogt–Koyanagi–Harada‐like syndrome induced by immune checkpoint inhibitors in a patient with melanoma. Clin Exp Dermatol 2020; 45:908-911. [DOI: 10.1111/ced.14282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 03/24/2020] [Accepted: 05/05/2020] [Indexed: 11/29/2022]
Affiliation(s)
- S. Yoshida
- Departments of Department of Dermatology Ehime University Graduate School of Medicine Toon, Ehime Japan
| | - K. Shiraishi
- Departments of Department of Dermatology Ehime University Graduate School of Medicine Toon, Ehime Japan
| | - T. Mito
- Department of Ophthalmology Ehime University Graduate School of Medicine Toon, Ehime Japan
| | - K. Sayama
- Departments of Department of Dermatology Ehime University Graduate School of Medicine Toon, Ehime Japan
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3
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Imagawa S, Mito T, Takahata K, Yamada S, Yanagi N, Chikaraishi H, Maekawa R, Tamura H, Iwamoto A, Hamaguchi S, Obana T, Okamura T, Shirai Y, Ise T, Hamajima T. Overview of LHD Superconducting Magnet System and Its 10-Year Operation. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10843] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Imagawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Takahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Yamada
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Yanagi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Chikaraishi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Maekawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Tamura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Iwamoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Hamaguchi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Obana
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Okamura
- Tokyo Institute of Technology, Yokohama 226-8502, Japan
| | - Y. Shirai
- Kyoto University, Kyoto 606-8501, Japan
| | - T. Ise
- Osaka University, Suita 565-0871, Japan
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4
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Iwamoto A, Maekawa R, Mito T, Sakagami H, Motojima O, Nakai M, Nagai K, Fujimura T, Norimatsu T, Azechi H, Mima K. Preliminary Results of Fuel Layering on the Cryogenic Target for the FIREX Project. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1473] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Iwamoto
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - R. Maekawa
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - H. Sakagami
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - O. Motojima
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - M. Nakai
- Institute of Laser Engineering, Osaka University: 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - K. Nagai
- Institute of Laser Engineering, Osaka University: 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - T. Fujimura
- Institute of Laser Engineering, Osaka University: 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - T. Norimatsu
- Institute of Laser Engineering, Osaka University: 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - H. Azechi
- Institute of Laser Engineering, Osaka University: 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - K. Mima
- Institute of Laser Engineering, Osaka University: 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
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5
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Iwamoto A, Fujimura T, Nakai M, Norimatsu T, Nagai K, Maekawa R, Sakagami H, Mito T, Motojima O, Azechi H, Mima K. Temperature Control in a Cryogenic Target with a Conical Laser Guide for Fuel Layering. Fusion Science and Technology 2017. [DOI: 10.13182/fst09-a8939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Iwamoto
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu, 509-5292, Japan
| | - T. Fujimura
- Institute of Laser Engineering, Osaka Univ.: 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - M. Nakai
- Institute of Laser Engineering, Osaka Univ.: 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - T. Norimatsu
- Institute of Laser Engineering, Osaka Univ.: 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - K. Nagai
- Institute of Laser Engineering, Osaka Univ.: 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - R. Maekawa
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu, 509-5292, Japan
| | - H. Sakagami
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu, 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu, 509-5292, Japan
| | - O. Motojima
- National Institute for Fusion Science: 322-6 Oroshi, Toki, Gifu, 509-5292, Japan
| | - H. Azechi
- Institute of Laser Engineering, Osaka Univ.: 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - K. Mima
- Institute of Laser Engineering, Osaka Univ.: 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
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6
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Komori A, Yamada H, Imagawa S, Kaneko O, Kawahata K, Mutoh K, Ohyabu N, Takeiri Y, Ida K, Mito T, Nagayama Y, Sakakibara S, Sakamoto R, Shimozuma T, Watanabe KY, Motojima O. Goal and Achievements of Large Helical Device Project. Fusion Science and Technology 2017. [DOI: 10.13182/fst58-1] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Komori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Yamada
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Imagawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O Motojima
- National Institute for Fusion Science, Toki 509-5292, Japan
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7
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Yamada H, Kawahata K, Mutoh T, Ohyabu N, Takeiri Y, Imagawa S, Ida K, Mito T, Nagayama Y, Shimozuma T, Watanabe KY, Kobayashi M, Kumazawa R, Masuzaki S, Morisaki T, Miyazawa J, Nagaoka K, Narushima Y, Sakakibara S, Sakamoto R, Toi K, Yokoyama M, Kaneko O, Komori A, Motojima O. Progress in the Integrated Development of the Helical System. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10789] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Yamada
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Imagawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Kobayashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Kumazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Morisaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - J. Miyazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Nagaoka
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Narushima
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Toi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Yokoyama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - A. Komori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Motojima
- National Institute for Fusion Science, Toki 509-5292, Japan
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8
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Motojima O, Yamada H, Komori A, Watanabe KY, Mutoh T, Takeiri Y, Ida K, Akiyama T, Asakura N, Ashikawa N, Chikaraishi H, Cooper WA, Emoto M, Fujita T, Fujiwara M, Funaba H, Goncharov P, Goto M, Hamada Y, Higashijima S, Hino T, Hoshino M, Ichimura M, Idei H, Ido T, Ikeda K, Imagawa S, Inagaki S, Isayama A, Isobe M, Itoh T, Itoh K, Kado S, Kalinina D, Kaneba T, Kaneko O, Kato D, Kato T, Kawahata K, Kawashima H, Kawazome H, Kobuchi T, Kondo K, Kubo S, Kumazawa R, Lyon JF, Maekawa R, Mase A, Masuzaki S, Mito T, Matsuoka K, Miura Y, Miyazawa J, More R, Morisaki T, Morita S, Murakami I, Murakami S, Mutoh S, Nagaoka K, Nagasaki K, Nagayama Y, Nakamura Y, Nakanishi H, Narihara K, Narushima Y, Nishimura H, Nishimura K, Nishiura M, Nishizawa A, Noda N, Notake T, Nozato H, Ohdachi S, Ohkubo K, Ohyabu N, Oyama N, Oka Y, Okada H, Osakabe M, Ozaki T, Peterson BJ, Sagara A, Saida T, Saito K, Sakakibara S, Sakamoto M, Sakamoto R, Sasao M, Sato K, Seki T, Shimozuma T, Shoji M, Sudo S, Takagi S, Takahashi Y, Takase Y, Takenaga H, Takeuchi N, Tamura N, Tanaka K, Tanaka M, Toi K, Takahata K, Tokuzawa T, Torii Y, Tsumori K, Watanabe F, Watanabe M, Watanabe T, Watari T, Yamada I, Yamada S, Yamaguchi T, Yamamoto S, Yamazaki K, Yanagi N, Yokoyama M, Yoshida N, Yoshimura S, Yoshimura Y, Yoshinuma M. Review on the Progress of the LHD Experiment. Fusion Science and Technology 2017. [DOI: 10.13182/fst04-a535] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- O. Motojima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Komori
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Akiyama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Asakura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Ashikawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Chikaraishi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - W. A. Cooper
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Emoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Fujita
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Fujiwara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Funaba
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - P. Goncharov
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Goto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Hamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Higashijima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Hino
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Hoshino
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Ichimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Idei
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Ido
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Ikeda
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Imagawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Inagaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Isayama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Isobe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Itoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Itoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Kado
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - D. Kalinina
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Kaneba
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - D. Kato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Kato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Kawashima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Kawazome
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Kobuchi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Kondo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. Kumazawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - J. F. Lyon
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. Maekawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Mase
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Matsuoka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Miura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - J. Miyazawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. More
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Morisaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Morita
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - I. Murakami
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Murakami
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Mutoh
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Nagaoka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Nagasaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Nakamura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Nakanishi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Narihara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Narushima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Nishimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Nishimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Nishiura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Nishizawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Noda
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Notake
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Nozato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Ohdachi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Ohkubo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Oyama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Oka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Okada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Osakabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Ozaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - B. J. Peterson
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Sagara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Saida
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Saito
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Sakamoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Sasao
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Sato
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Seki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Shoji
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Sudo
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Takagi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Takahashi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Takase
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - H. Takenaga
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Takeuchi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Tamura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Tanaka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Tanaka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Toi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Takahata
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Tokuzawa
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Torii
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Tsumori
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - F. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Watari
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - I. Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Yamaguchi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Yamamoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - K. Yamazaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Yanagi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Yokoyama
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - N. Yoshida
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Yoshimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
| | - M. Yoshinuma
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu-ken 509-5292, Japan
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Wzietek P, Mito T, Alloul H, Pontiroli D, Aramini M, Riccò M. NMR study of the superconducting gap variation near the Mott transition in Cs₃C₆₀. Phys Rev Lett 2014; 112:066401. [PMID: 24580696 DOI: 10.1103/physrevlett.112.066401] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Indexed: 06/03/2023]
Abstract
Former extensive studies of superconductivity in the A3C60 compounds, where A is an alkali metal, have led one to consider that Bardeen-Cooper-Schrieffer electron-phonon pairing prevails in those compounds, though the incidence of electronic Coulomb repulsion has been highly debated. The discovery of two isomeric fulleride compounds Cs3C60 which exhibit a transition with pressure from a Mott insulator (MI) to a superconducting (SC) state clearly reopens that question. Using pressure (p) as a single control parameter of the C60 balls lattice spacing, one can now study the progressive evolution of the SC properties when the electronic correlations are increased towards the critical pressure p(c) of the Mott transition. We have used 13C and 133Cs NMR measurements on the cubic phase A15-Cs3C60 just above p(c)=5.0(3) kbar, where the SC transition temperature Tc displays a dome shape with decreasing cell volume. From the T dependence below T(c) of the nuclear spin lattice relaxation rate (T1)(-1) we determine the electronic excitations in the SC state, that is 2Δ, the gap value. The latter is found to be largely enhanced with respect to the Bardeen-Cooper-Schrieffer value established in the case of dense A3C60 compounds. It even increases slightly with decreasing p towards p(c), where T(c) decreases on the SC dome, so that 2Δ/k(B)T(c) increases regularly upon approaching the Mott transition. These results bring clear evidence that the increasing correlations near the Mott transition are not significantly detrimental to superconductivity. They rather suggest that repulsive electron interactions might even reinforce elecron-phonon superconductivity, being then partly responsible for the large T(c) values, as proposed by theoretical models taking the electronic correlations as a key ingredient.
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Affiliation(s)
- P Wzietek
- Laboratoire de Physique des Solides, Université Paris-Sud 11, CNRS UMR 8502, 91405 Orsay, France
| | - T Mito
- Laboratoire de Physique des Solides, Université Paris-Sud 11, CNRS UMR 8502, 91405 Orsay, France and Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
| | - H Alloul
- Laboratoire de Physique des Solides, Université Paris-Sud 11, CNRS UMR 8502, 91405 Orsay, France
| | - D Pontiroli
- Dipartimento di Fisica e Scienze della Terra, Università di Parma - Via G.P.Usberti 7/a, I-43124 Parma, Italy and Laboratorio MIST.E-R, P. Gobetti 101, I-40129 Bologna, Italy
| | - M Aramini
- Dipartimento di Fisica e Scienze della Terra, Università di Parma - Via G.P.Usberti 7/a, I-43124 Parma, Italy
| | - M Riccò
- Dipartimento di Fisica e Scienze della Terra, Università di Parma - Via G.P.Usberti 7/a, I-43124 Parma, Italy
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Hamaguchi S, Okamura T, Imagawa S, Obana T, Yanagi N, Mito T. Helium Subcooling System for LHD Helical Coils. Fusion Science and Technology 2010. [DOI: 10.13182/fst10-a10845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Hamaguchi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Okamura
- Tokyo Institute of Technology, Yokohama 226-8502, Japan
| | - S. Imagawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Obana
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Yanagi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki 509-5292, Japan
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11
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Yanagi N, Imagawa S, Sekiguchi H, Ninomiya A, Takahata K, Hamaguchi S, Obana T, Mito T. Performance of the Superconducting Helical Coils of LHD. Fusion Science and Technology 2010. [DOI: 10.13182/fst10-a10844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N. Yanagi
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Imagawa
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - H. Sekiguchi
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - A. Ninomiya
- Seikei University, Musashino, Tokyo 180-8633, Japan
| | - K. Takahata
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - S. Hamaguchi
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Obana
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Mito
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
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12
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Mito T, Yoshioka K, Nagano M, Suzuki C, Yamashita S, Hoshi H. Transforming growth factor-α in a defined medium during in vitro maturation of porcine oocytes improves their developmental competence and intracellular ultrastructure. Theriogenology 2009; 72:841-50. [DOI: 10.1016/j.theriogenology.2009.06.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2009] [Revised: 05/28/2009] [Accepted: 06/03/2009] [Indexed: 11/26/2022]
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Yamada H, Imagawa S, Takeiri Y, Kaneko O, Mutoh T, Mito T, Chikaraishi H, Hamaguchi S, Ida K, Igami H, Ikeda K, Kasahara H, Kobayashi M, Kubo S, Kumazawa R, Maekawa R, Masuzaki S, Miyazawa J, Morisaki T, Morita S, Nagaoka K, Nakamura Y, Narushima Y, Osakabe M, Saito K, Sakakibara S, Sakamoto R, Seki T, Shimozuma T, Shoji M, Suzuki Y, Takahata K, Tamura H, Tsumori K, Watanabe K, Yamada S, Yanagi N, Yoshimura Y, Kawahata K, Ohyabu N, Komori A, Motojima O. 10 years of engineering and physics achievements by the Large Helical Device project. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2009.01.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Nagayama Y, Emoto M, Nakanishi H, Sudo S, Imazu S, Inagaki S, Iwata C, Kojima M, Nonomura M, Ohsuna M, Tsuda K, Yoshida M, Chikaraishi H, Funaba H, Horiuchi R, Ishiguro S, Ito Y, Kubo S, Mase A, Mito T, Miyazawa J, Mutoh T, Nakamura Y, Saito K, Sakamoto R, Seki T, Shoji M, Takami S, Watanabe T, Yamamoto T, Komori A, Motojima O. Control, data acquisition, data analysis and remote participation in LHD. Fusion Engineering and Design 2008. [DOI: 10.1016/j.fusengdes.2007.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yamada S, Sagara A, Imagawa S, Mito T, Motojima O. Conceptual design of the cryogenic system for the helical-type fusion power plant FFHR. Fusion Engineering and Design 2007. [DOI: 10.1016/j.fusengdes.2007.03.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Takahata K, Mito T, Tamura H, Imagawa S, Sagara A. Conceptual design of an indirect-cooled superconducting magnet for the LHD-type fusion reactor FFHR. Fusion Engineering and Design 2007. [DOI: 10.1016/j.fusengdes.2007.04.050] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Izumi S, Ouchi S, Kuge T, Arai H, Mito T, Fujii H, Aranishi F, Shimizu A. PCR-RFLP genotypes associated with quinolone resistance in isolates of Flavobacterium psychrophilum. J Fish Dis 2007; 30:141-7. [PMID: 17352789 DOI: 10.1111/j.1365-2761.2007.00797.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A novel genotyping method for epizootiological studies of bacterial cold-water disease caused by Flavobacterium psychrophilum and associated with quinolone resistance was developed. Polymerase chain reaction followed by restriction fragment length polymorphism (PCR-RFLP) was performed on 244 F. psychrophilum isolates from various fish species. PCR was performed with primer pair GYRA-FP1F and GYRA-FP1R amplifying the A subunit of the DNA gyrase (GyrA) gene, which contained the quinolone resistance determining region. Digestion of PCR products with the restriction enzyme Mph1103I showed two genotypes, QR and QS. The difference between these genotypes was amino acid substitutions at position 83 of GyrA (Escherichia coli numbering). The genotype QR indicated an alanine residue at this position associated with quinolone resistance in F. psychrophilum isolates. Of the 244 isolates tested in this study, the number of QR genotype isolates was 153 (62.7%). In isolates from ayu (n=177), 146 (82.5%) were genotype QR. With combination of this technique and previously reported PCR-RFLP genotyping, eight genotypes were observed in F. psychrophilum isolates. Using this genotyping system, the relationships between genotype and host fish species, or locality of isolation, were analysed and are discussed.
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Affiliation(s)
- S Izumi
- Stock Assessment Division, National Institute of Fisheries Science, Yokohama, Japan.
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Yatsuka E, Kato H, Sakata D, Morikawa J, Ogawa Y, Yanagi N, Mito T. Electron Bernstein Wave Heating on the Internal Coil Device Mini-RT. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- E. Yatsuka
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwashi, Chiba, 277-8561
| | - H. Kato
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwashi, Chiba, 277-8561
| | - D. Sakata
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwashi, Chiba, 277-8561
| | - J. Morikawa
- School of Engineering, University of Tokyo, 2-11-16, Yayoi, Bunkyo Ward, Tokyo, 113-8656
| | - Y. Ogawa
- High Temperature Plasma Center, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwashi, Chiba, 277-8568
| | - N. Yanagi
- National Institute for Fusion Science, 322-6, Oroshicho, Toki, Gifu, 509-5292
| | - T. Mito
- National Institute for Fusion Science, 322-6, Oroshicho, Toki, Gifu, 509-5292
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Sagara A, Mitarai O, Imagawa S, Morisaki T, Tanaka T, Mizuguchi N, Dolan T, Miyazawa J, Takahata K, Chikaraishi H, Yamada S, Seo K, Sakamoto R, Masuzaki S, Muroga T, Yamada H, Fukada S, Hashizume H, Yamazaki K, Mito T, Kaneko O, Mutoh T, Ohyabu N, Noda N, Komori A, Sudo S, Motojima O. Conceptual design activities and key issues on LHD-type reactor FFHR. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.057] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Hamaguchi S, Imagawa S, Yanagi N, Takahata K, Maekawa R, Mito T. Performance of cold compressors in a cooling system of an R&D superconducting coil cooled with subcooled helium. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hemmi T, Yanagi N, Bansal G, Seo K, Takahata K, Mito T. Electromagnetic behavior of HTS coils in persistent current operations. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ishigohka T, Mito T, Imagawa S, Yanagi N, Sekiguchi H, Yamada S. Protection of LHD coils by intelligent observation of voltage signals. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kawagoe A, Yamamuro H, Sumiyoshi F, Mito T, Chikaraishi H, Hemmi T, Baba T, Yokota M, Morita Y, Ogawa H, Abe R, Okumura K, Iwakuma M. Optimization of a conduction-cooled LTS pulse coil. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Yanagi N, Seo K, Imagawa S, Sekiguchi H, Takahata K, Yamada S, Mito T, Ishigohka T, Ninomiya A. Pulse height analysis on the balance voltage and acoustic emission signals for the LHD superconducting coils. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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26
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Imagawa S, Hamaguchi S, Yanagi N, Sekiguchi H, Moriuchi S, Mito T, Komori A, Motojima O. Upgrading program for improving the cryogenic stability of LHD helical coils by lowering the operating temperature. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.088] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Mito T, Sagara A, Imagawa S, Yamada S, Takahata K, Yanagi N, Chikaraishi H, Maekawa R, Iwamoto A, Hamaguchi S, Sato M, Noda N, Yamauchi K, Komori A, Motojima O. Applied superconductivity and cryogenic research activities in NIFS. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.086] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Yoshimura A, Nakata A, Mito T, Noji S. The characteristics of karyotype and telomeric satellite DNA sequences in the cricket, Gryllus bimaculatus (Orthoptera, Gryllidae). Cytogenet Genome Res 2006; 112:329-36. [PMID: 16484791 DOI: 10.1159/000089889] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2005] [Accepted: 07/18/2005] [Indexed: 12/21/2022] Open
Abstract
The chromosomes derived from the Japanese population of Gryllus bimaculatus were characterized by C-banding and Ag-NOR staining. The chromosome number, 2n = 28 + XX (female)/XO (male), corresponded with that of other populations of G. bimaculatus, but the chromosome configuration in idiograms varied between the populations. NORs were carried on one pair of autosomes and appeared polymorphous. The positive C-bands located at the centromere of all chromosomes and the distal regions of many chromosome pairs, and the size and the distribution pattern of the distal C-heterochromatin showed differences among the chromosomes. In addition, this paper reports on the characteristics of HindIII satellite DNA isolated from the genome of G. bimaculatus. The HindIII repetitive fragments were about 0.54 kb long, and localized at the distal C-bands of the autosomes and the interstitial C-bands of the X chromosome. Molecular analysis showed two distinct satellite DNA sequences, named the GBH535 and GBH542 families, with high AT contents of about 67 and 66%, respectively. The two repetitive families seem to be derived from a common ancestral sequence, and both families possessed the same 13-bp palindrome sequence. The results of Southern blot hybridization suggest that the sequence of the GBH535 family is conserved in the genomic DNAs of Gryllus species, whereas the GBH542 family is a species-specific sequence.
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Affiliation(s)
- A Yoshimura
- Department of Biofunctional Science, Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki.
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Iwamoto A, Maekawa R, Mito T, Okamoto M, Motojima O, Sugito S, Okada K, Nakai M, Norimatsu T, Nagai K. Cool-down performance of the apparatus for the cryogenic target of the FIREX project. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2005.09.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yamada S, Nakanishi Y, Kojima H, Hiue H, Uede T, Mito T. Elimination of variable harmonics on motor generator circuit for experimental fusion facility. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kawasaki S, Mito T, Kawasaki Y, Zheng GQ, Kitaoka Y, Aoki D, Haga Y, Onuki Y. Gapless magnetic and quasiparticle excitations due to the coexistence of antiferromagnetism and superconductivity in CeRhIn5: a study of 115In NQR under pressure. Phys Rev Lett 2003; 91:137001. [PMID: 14525330 DOI: 10.1103/physrevlett.91.137001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2003] [Indexed: 05/24/2023]
Abstract
We report systematic measurements of ac susceptibility, nuclear-quadrupole-resonance spectrum, and nuclear-spin-lattice-relaxation time (T1) on the pressure (P)-induced heavy-fermion superconductor CeRhIn5. The temperature (T) dependence of 1/T(1) at P=1.6 GPa has revealed that antiferromagnetism (AFM) and superconductivity (SC) coexist microscopically, exhibiting the respective transition at T(N)=2.8 K and T(MF)(c)=0.9 K. It is demonstrated that SC does not yield any trace of gap opening in low-lying excitations below T(onset)(c)=2 K, but T(MF)(c)=0.9 K, followed by a T(1)T=const law. These results point to the unconventional characteristics of SC coexisting with AFM. We highlight that both of the results deserve theoretical work on the gapless nature in the low-lying excitation spectrum due to the coexistence of AFM and SC and the lack of the mean-field regime below T(onset)(c)=2 K.
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Affiliation(s)
- S Kawasaki
- Department of Physical Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Yamada S, Mito T, Chikaraishi H, Nishimura A, Kojima H, Nakanishi Y, Uede T, Satow T, Motojima O. SMES-UPS for large-scaled SC magnet system of LHD. Fusion Engineering and Design 2003. [DOI: 10.1016/s0920-3796(03)00297-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nagayama Y, Kawahata K, Inagaki S, Peterson BJ, Sakakibara S, Tanaka K, Tokuzawa T, Watanabe KY, Ashikawa N, Chikaraishi H, Emoto M, Funaba H, Goto M, Hamada Y, Ichiguchi K, Ida K, Idei H, Ido T, Ikeda K, Imagawa S, Isayama A, Isobe M, Iwamoto A, Kaneko O, Kitagawa S, Komori A, Kubo S, Kumazawa R, Masuzaki S, Matsuoka K, Mito T, Miyazawa J, Morisaki T, Morita S, Motojima O, Murakami S, Mutoh T, Muto S, Nakajima N, Nakamura Y, Nakanishi H, Narihara K, Narushima Y, Nishimura A, Nishimura K, Nishizawa A, Noda N, Ohdachi S, Ohkubo K, Ohyabu N, Oka Y, Osakabe M, Ozaki T, Sagara A, Saito K, Sakamoto R, Sasao M, Sato K, Seki T, Shimozuma T, Shoji M, Suzuki H, Sudo S, Takahata K, Takeiri Y, Toi K, Tsumori K, Yamada H, Yamada I, Yamazaki K, Yanagi N, Yokoyama M, Yoshimura Y, Yoshinuma Y, Watari T. Sawtooth oscillation in current-carrying plasma in the large helical device. Phys Rev Lett 2003; 90:205001. [PMID: 12785901 DOI: 10.1103/physrevlett.90.205001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2002] [Indexed: 05/24/2023]
Abstract
Sawtooth oscillations have been observed in current-carrying helical plasmas by using electron-cyclotron-emission diagnostics in the Large Helical Device. The plasma current, which is driven by neutral beam injection, reduces the beta threshold of the sawtooth oscillation. When the central q value is increased due to the plasma current, the core region crashes, and, when it is decreased, the edge region crashes annularly. Observed rapid mixture of the plasma in the limited region suggests that these sawtooth crashes are reconnection phenomena. Unlike previous experiments, no precursor oscillation has been observed.
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Affiliation(s)
- Y Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
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Mito T, Kawasaki S, Kawasaki Y, Zheng GQ, Kitaoka Y, Aoki D, Haga Y, Onuki Y. Coexistence of antiferromagnetism and superconductivity near the quantum criticality of the heavy-fermion compound CeRhIn5. Phys Rev Lett 2003; 90:077004. [PMID: 12633267 DOI: 10.1103/physrevlett.90.077004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2002] [Indexed: 05/24/2023]
Abstract
We report a study on the interplay between antiferromagnetism (AFM) and superconductivity (SC) in a heavy-fermion compound CeRhIn5 under pressure P=1.75 GPa. The onset of the magnetic order is evidenced from a clear split of 115In nuclear quadrupole resonance spectrum due to the spontaneous internal field below the Néel temperature T(N)=2.5 K. Simultaneously, bulk SC below T(c)=2.0 K is demonstrated by the observation of the Meissner diamagnetism signal whose size is the same as in the exclusively superconducting phase. These results indicate that the AFM coexists homogeneously with the SC at a microscopic level.
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Affiliation(s)
- T Mito
- Department of Physical Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Goncharenko I, Emotob H, Matsumoto S, Mishima H, Tanaka S, Kanou Y, Fujii T, Sugou N, Mito T, Shibata I. Realistic Virtual Endoscopy of the ventricle system and haptic-based surgical simulator of hydrocefalus treatment. Stud Health Technol Inform 2003; 94:93-5. [PMID: 15455870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
New methods and software tools for automatic extraction of the ventricle system from magnetic resonance imagery (MRI) data, ventricle part classification, and realistic texturing are proposed to support Virtual Endoscopy (VE). Volume- and surface-based medical atlases are intensively used as templates in the methods. The processed ventricle-related surfaces are then utilized in a haptic-based system, which provides a surgeon with several basic functions simulating "virtual treatment" of hydrocephalus.
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Affiliation(s)
- I Goncharenko
- 3D Inc., 1-2-12 Bandaicho, Naka-ku, Yokohama 231-0031, Japan
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Takahata K, Mito T, Chikaraishi H, Imagawa S, Satow T. Coupling losses in cable-in-conduit conductors for LHD poloidal coils. Fusion Engineering and Design 2003. [DOI: 10.1016/s0920-3796(02)00279-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Heller R, Friesinger G, Fuchs A, Komarek P, Mito T, Satoh S, Takahata K, Tasca M, Ulbricht A, Vécsey G, Vogel M. Development program of a 60 kA high temperature superconductor current lead for the ITER toroidal field coils. Fusion Engineering and Design 2001. [DOI: 10.1016/s0920-3796(01)00354-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
Mandibular growth prediction provides important information for planning treatment and for evaluating occlusal stability after treatment. At present, several methods can predict mandibular growth, but it is not clear which method is the most accurate. This study compared the predictive error of several methods by using skeletal maturity indicators. Twenty-two longitudinal cephalograms and hand-wrist radiographs of female subjects (average initial age, 8.3 years; final age, 18.4 years) were collected to construct the prediction formula. Another 22 female subjects (initial age, 10.8 years; final age, 18.6 years) were examined to compare differences between the predicted values and the actual values. Mandibular total length (condylion-gnathion) at the final stage can be accurately predicted by (1) the ossification events of the third middle phalanx and the radius, (2) the growth potential method, (3) the growth percentage method, (4) the multiple regression method, and (5) the growth chart method. Bone age as a parameter was calculated by both the Tanner-Whitehouse 2 (TW2) method and the computer-aided skeletal maturity assessment system (CASMAS) that we developed. The average error between the predicted length of condylion to gnathion and the actual length at the final stage for each method was (1) 3.0 mm; (2) 2.1 mm (TW2), 2.4 mm (CASMAS); (3) 2.3 mm (TW2), 2.6 mm (CASMAS); (4) 4.3 mm (TW2), 4.9 mm (CASMAS); and (5) 3.6 mm (TW2), 3.7 mm (CASMAS). The growth potential method and the growth percentage method were the most accurate predictors of mandibular growth potential.
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Affiliation(s)
- K Sato
- Division of Orthodontics, Department of Lifelong Oral Health Science, Graduate School of Dentistry, Tohoku University, Sendai, Japan.
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Zheng G, Tanabe K, Mito T, Kawasaki S, Kitaoka Y, Aoki D, Haga Y, Onuki Y. Unique spin dynamics and unconventional superconductivity in the layered heavy fermion compound CeIrIn5: NQR evidence. Phys Rev Lett 2001; 86:4664-4667. [PMID: 11384309 DOI: 10.1103/physrevlett.86.4664] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2000] [Revised: 02/14/2001] [Indexed: 05/23/2023]
Abstract
We report measurements of the 115In nuclear spin-lattice relaxation rate ( 1/T1) between T = 0.09 and 100 K in the new heavy fermion (HF) compound CeIrIn5. At 0.4 < or = T< or = 100 K, 1/T1 is strongly T-dependent, which indicates that CeIrIn5 is much more itinerant than known Ce-based HFs. We find that 1/T1T, subtracting that for LaIrIn5, follows a (1 / T+straight theta)3/4 variation with straight theta = 8 K. We argue that this novel feature points to anisotropic, due to a layered crystal structure, spin fluctuations near a magnetic ordering. The bulk superconductivity sets in at 0.40 K below which the coherence peak is absent and 1/T1 follows a T3 variation, which suggests unconventional superconductivity with line-node gap.
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Affiliation(s)
- G Zheng
- Department of Physical Science, Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan
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Inui K, Nakazawa S, Yoshino J, Okushima K, Nakamura Y, Ukai H, Mito T. A case of pancreatic carcinoma diagnosed by intraductal US after lithotripsy for pancreatolithiasis. Gastrointest Endosc 2000; 52:418-21. [PMID: 10968865 DOI: 10.1067/mge.2000.106672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- K Inui
- Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine, Nagoya, Japan.
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Sugo N, Kuroki T, Nemoto M, Mito T, Seiki Y, Shibata I. [Difference in 201TlCl accumulation mechanism in brain tumors: a comparison of their Na(+)-K+ ATPase activities]. Kaku Igaku 2000; 37:311-8. [PMID: 10965651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
The accumulation levels of 201TlCl and Na(+)-K+ ATPase activity in tumor tissue were compared among glioblastoma, benign glioma and meningioma to study the difference in the mechanism of 201TlCl accumulation. The subjects were 19 cases comprised of 6 glioblastoma, 2 oligodendroglioma, 1 fibrillary astrocytoma, 1 pilocytic astrocytoma and 9 meningioma. Preoperative 201TlCl SPECT was performed in all the cases, and Thallium Index (TL index) was calculated by a ratio of 201TlCl in the tumor area and the contralateral area. In addition, cell membrane was extracted from the tumor tissue collected intraoperatively to determine Na(+)-K+ ATPase activity. No statistically significant difference in TL index was noted between the glioblastoma group (6.97 +/- 2.67) and the meningioma group (5.87 +/- 1.99). This fact showed that there was no difference in the accumulation level of 201TlCl between the two groups. On the other hand, the glioblastoma group indicated a higher value of Na(+)-K+ ATPase activity (49.13 +/- 43.76 mumole/hour/mg protein) than the meningioma group (7.73 +/- 13.84 mumole/hour/mg protein) (p < 0.05, t test). These results suggested the involvement of Na(+)-K+ ATPase activity in 201TlCl accumulation in glioblastoma and the influences of other accumulation mechanism than Na(+)-K+ ATPase activity such as the volume of intratumoral vascular bed in meningioma.
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Affiliation(s)
- N Sugo
- Department of Neurosurgery, Toho University School of Medicine, Omori Hospital
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Mito T, Endo K. PCR survey of Hox genes in the crinoid and ophiuroid: evidence for anterior conservation and posterior expansion in the echinoderm Hox gene cluster. Mol Phylogenet Evol 2000; 14:375-88. [PMID: 10712843 DOI: 10.1006/mpev.1999.0707] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To help elucidate the cluster organization of Hox genes in echinoderms, we amplified a homeobox region by polymerase chain reaction (PCR) and cloned and sequenced the PCR products for the comatulid crinoid Oxycomanthus japonicus and the ophiuroid Stegophiura sladeni. The crinoid had at least three anterior, four medial, and four posterior genes, and the ophiuroid had at least one anterior, three medial, and six (one of which being a possible trans-paralog) posterior genes. The survey of the crinoid detected all three anterior complements (PG1-3 genes). It was inferred that the Hox genes of each species are organized into a single cluster and that a novel cognate group of echinoderm posterior genes (tentatively termed HboxP9) exists among echinoderms in addition to the known posterior genes Hbox4, Hbox7, and Hbox10. The results, combined with the data of other echinoderm classes, strongly suggest that the presence of a single Hox gene cluster is a common feature among echinoderms and that the cluster has the general features of the deuterostome Hox gene cluster, i.e., the anterior conservation and posterior expansion. The results of the ophiuroid imply that the posterior genes in this class diversified after the phylum Echinodermata had been established.
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Affiliation(s)
- T Mito
- Geological Institute, University of Tokyo, Tokyo, 113-0033, Japan
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Takahashi K, Mito T, Imai H, Fujii M. Bi-directional transport of fluid and particles on uniformly ciliated epithelium. Comp Biochem Physiol A Mol Integr Physiol 1999. [DOI: 10.1016/s1095-6433(99)90329-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Endo K, Mito T, Kano T, Sanpei K, Nagao T, Seiki Y, Shibata I. [Contralateral cerebellar infarction after aneurysmal clipping with pterional craniotomy: report of two cases]. No Shinkei Geka 1999; 27:659-65. [PMID: 10440041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
A 77-year-old woman underwent right fronto-temporal craniotomy for a right ruptured IC-PC aneurysm (case 1), and a 44-year-old woman underwent right fronto-temporal craniotomy for a right ruptured BA-SCA aneurysm (case 2). They were clipped completely without any troubles during surgery. But postoperative CT scan demonstrated contralateral cerebellar infarction. We recognized left-hand tremor as a neurological deficit caused by cerebellar infarction in case 1. Concerning the mechanism of contralateral cerebellar infarction after pterional craniotomy, we think that it could be; --1) changing of venous blood flow by overdrainage of cerebrospinal fluid, 2) destruction of the bridging vein because of cerebral transformation with rapid decompression, 3) ischemia caused by brain retraction and compression during operation, 4) hypertension or hypoxia during operation, 5) crossed cerebellar diaschosis, and so on. In our 2 cases, we believe that perioperative CSF overdrainage caused the contralateral cerebellar infarction or CCD. To avoid this kind of infarction, we should try to take more protective and careful procedures as well as closer perioperative management.
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Affiliation(s)
- K Endo
- Department of Neurosurgery, Toho University School of Medicine, Tokyo
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Miyazaki J, Nakazawa S, Yoshino J, Inui K, Okushima K, Nakamura Y, Takashima T, Ukai K, Mito T, Matsumoto S, Suzuki H, Horibe Y. [A case of lymphoepithelial cyst of the pancreas]. Nihon Shokakibyo Gakkai Zasshi 1999; 96:550-7. [PMID: 10369001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- J Miyazaki
- Department of Internal Medicine, Second Teaching Hospital, Fujita Health University School of Medicine
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Inoue K, Osaka H, Imaizumi K, Nezu A, Takanashi J, Arii J, Murayama K, Ono J, Kikawa Y, Mito T, Shaffer LG, Lupski JR. Proteolipid protein gene duplications causing Pelizaeus-Merzbacher disease: molecular mechanism and phenotypic manifestations. Ann Neurol 1999; 45:624-32. [PMID: 10319885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Pelizaeus-Merzbacher disease (PMD) is an X-linked disorder characterized by dysmyelination of the central nervous system (CNS) caused by mutations involving the proteolipid protein gene (PLP). In addition to point and frameshift mutations in the coding region, duplications involving the entire PLP have been recognized recently as a major genetic abnormality causing PMD. We devised an interphase fluorescence in situ hybridization (FISH) assay to establish an efficient screening test for PLP duplication. Thirteen patients from 11 Japanese PMD families were determined to have PLP duplications. This molecular diagnostic FISH test also readily detected female carriers. Molecular analysis revealed that the size of the duplication and location of the breakpoints showed striking variation. Fiber FISH demonstrated that the duplication is tandem in nature. Haplotype analysis indicated an intrachromosomal origin for the duplication. These results suggest that an unequal sister chromatid exchange in male meiosis is likely to be the major mechanism leading to the formation of the duplication. Patients with the duplication commonly present with a mild PMD phenotype. Two patients with an exceptionally severe clinical phenotype carried large duplications, suggesting that either the larger duplicated segment incorporates additional dosage-sensitive genes or that the location of the duplication junction may affect the phenotype.
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Affiliation(s)
- K Inoue
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
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Sugo N, Ohishi H, Kuroki T, Ohtsuka T, Kano T, Mito T, Seiki Y, Shibata I. [201T1C1 accumulation dynamics in glioma with different grades of malignancy: an investigation using dynamic SPECT]. No Shinkei Geka 1998; 26:881-7. [PMID: 9789292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Dynamic SPECT was performed using 201TICI in a total of 21 gliomas, 14 cases of glioblastoma multiforme (GM) and 7 cases of anaplastic astrocytoma (AA), to investigate the relationship between test results and malignancy. The accumulation of isotope (counts/pixel) in the tumor was measured every 3 minutes with dynamic SPECT. The initial 3-minute value was reduced from subsequent accumulations (counts/minute) to obtain the time-activity curve (TAC). Thallium index (TL index), the ratio of 15-minute accumulation in the tumor to that in the same region of the contralateral normal brain, was also calculated. TL index was significantly higher (p < 0.05, Mann-Whitney test) in GM (6.25 +/- 1.97) than in AA (4.10 +/- 1.66), although no clear differential value could be determined between the two. TAC in the GM group showed that compared with the initial 3-minute value, accumulation increased significantly (p < 0.05) at every measurement point after isotope injection: 6 minutes, 0.660 +/- 0.671; 9 minutes, 1.322 +/- 1.319; 12 minutes, 1.315 +/- 1.632 and 15 minutes, 1.234 +/- 1.552. The increase in isotope accumulation in the tumor after 6 minutes or later was noted in 11 of the 14 cases in the GM group. In the AA group, however, there were no significant differences between the initial 3-minute value and value after 6 minutes (-0.283 +/- 0.462), 9 minutes (-0.574 +/- 0.681), 12 minutes (-0.690 +/- 0.611) and 15 minutes (-0.707 +/- 0.636) after isotope injection. A decrease in isotope accumulation in the tumor after 6 minutes or later was noted in 6 of the 7 cases in the AA group. Compared with static SPECT, dynamic SPECT, which can be performed easily and quickly, is more useful in clinical settings because of its high ability to differentiate the grade of malignancy of gliomas.
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Affiliation(s)
- N Sugo
- Department of Neurosurgery, Toho University School of Medicine, Tokyo, Japan
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Yanagi N, Mito T, Imagawa S, Takahata K, Satow T, Yamamoto J, Motojima O. Development and quality control of the superconductors for the helical coils of LHD. Fusion Engineering and Design 1998. [DOI: 10.1016/s0920-3796(98)00118-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Yamamoto J, Mito T, Takahata K, Yanagi N, Motojima O. Helical and poloidal coil R&D in LHD. Fusion Engineering and Design 1998. [DOI: 10.1016/s0920-3796(98)00117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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