Search

Your search keyword '"Kubo, Toshiyuki"' showing total 249 results
Start Over Author "Kubo, Toshiyuki"
249 results on '"Kubo, Toshiyuki"'

101. The Deeply Bound Pionic States in 121Sn Produced by (d,3He) Reaction

Author

Nishi, Takahiro, primary, Berg, Georg P. A., additional, Dozono, Masanori, additional, Fujioka, Hiroyuki, additional, Fukuda, Naoki, additional, Furuno, Tatsuya, additional, Geissel, Hans, additional, Hayano, Ryugo S., additional, Inabe, Naoto, additional, Itahashi, Kenta, additional, Itoh, Satoshi, additional, Kameda, Daisuke, additional, Okochi, Kota, additional, Kubo, Toshiyuki, additional, Matsubara, Hiroaki, additional, Michimasa, Shin’ichiro, additional, Miki, Kenjiro, additional, Miya, Hiroyuki, additional, Murakami, Yohei, additional, Nakamura, Masaki, additional, Nakatsuka, Noritsugu, additional, Noji, Shumpei, additional, Ota, Shinsuke, additional, Suzuki, Hiroshi, additional, Suzuki, Ken, additional, Takaki, Motonobu, additional, Takeda, Hiroyuki, additional, Tanaka, Yoshiki K., additional, Todoroki, Koichi, additional, Tsukada, Kyo, additional, Uesaka, Tomohiro, additional, Watanabe, Yuni N., additional, Weick, Helmut, additional, Yamada, Hiroyuki, additional, and Yoshida, Koichi, additional

Published
2014
Full Text
View/download PDF

103. Energy resolution of gas ionization chamber for high-energy heavy ions

Author

Sato, Yuki, primary, Taketani, Atsushi, additional, Fukuda, Naoki, additional, Takeda, Hiroyuki, additional, Kameda, Daisuke, additional, Suzuki, Hiroshi, additional, Shimizu, Yohei, additional, Nishimura, Daiki, additional, Fukuda, Mitsunori, additional, Inabe, Naohito, additional, Murakami, Hiroyuki, additional, Yoshida, Koichi, additional, and Kubo, Toshiyuki, additional

Published
2013
Full Text
View/download PDF

105. Production of spin-controlled rare isotope beams

Author

Ichikawa, Yuichi, primary, Ueno, Hideki, additional, Ishii, Yuji, additional, Furukawa, Takeshi, additional, Yoshimi, Akihiro, additional, Kameda, Daisuke, additional, Watanabe, Hiroshi, additional, Aoi, Nori, additional, Asahi, Koichiro, additional, Balabanski, Dimiter L., additional, Chevrier, Raphaël, additional, Daugas, Jean-Michel, additional, Fukuda, Naoki, additional, Georgiev, Georgi, additional, Hayashi, Hironori, additional, Iijima, Hiroaki, additional, Inabe, Naoto, additional, Inoue, Takeshi, additional, Ishihara, Masayasu, additional, Kubo, Toshiyuki, additional, Nanao, Tsubasa, additional, Ohnishi, Tetsuya, additional, Suzuki, Kunifumi, additional, Tsuchiya, Masato, additional, Takeda, Hiroyuki, additional, and Rajabali, Mustafa M., additional

Published
2012
Full Text
View/download PDF

106. Measurement of Pionic 121Sn atoms at the RI beam factory

Author

Itahashi, Kenta, primary, Berg, Georg P. A., additional, Fujioka, Hiroyuki, additional, Geissel, Hans, additional, Hayano, Ryugo S., additional, Hirenzaki, Satoru, additional, Ikeno, Natsumi, additional, Inabe, Naohito, additional, Itoh, Satoshi, additional, Kameda, Daisuke, additional, Kubo, Toshiyuki, additional, Matsubara, Hiroaki, additional, Michimasa, Shinichiro, additional, Miki, Kenjiro, additional, Miya, Hiroyuki, additional, Nakamura, Masaki, additional, Nishi, Takahiro, additional, Noji, Shumpei, additional, Ota, Shinsuke, additional, Suzuki, Ken, additional, Takeda, Hiroyuki, additional, Todoroki, Koichi, additional, Tsukada, Kyo, additional, Uesaka, Tomohiro, additional, Weick, Helmut, additional, and Yoshida, Koichi, additional

Published
2012
Full Text
View/download PDF

107. BigRIPS separator and ZeroDegree spectrometer at RIKEN RI Beam Factory

Author

Kubo, Toshiyuki, primary, Kameda, Daisuke, additional, Suzuki, Hiroshi, additional, Fukuda, Naoki, additional, Takeda, Hiroyuki, additional, Yanagisawa, Yoshiyuki, additional, Ohtake, Masao, additional, Kusaka, Kensuke, additional, Yoshida, Koichi, additional, Inabe, Naohito, additional, Ohnishi, Tetsuya, additional, Yoshida, Atsushi, additional, Tanaka, Kanenobu, additional, and Mizoi, Yutaka, additional

Published
2012
Full Text
View/download PDF

108. First pionic atom spectroscopy at RIBF

Author

Itahashi, Kenta, primary, Berg, Georg P.A., additional, Fujioka, Hiroyuki, additional, Geissel, Hans, additional, Hayano, Ryugo S., additional, Hirenzaki, Satoru, additional, Ikeno, Natsumi, additional, Inabe, Naohito, additional, Itoh, Satoshi, additional, Kameda, Daisuke, additional, Kubo, Toshiyuki, additional, Matsubara, Hiroaki, additional, Michimasa, Shinichiro, additional, Miki, Kenjiro, additional, Miya, Hiroyuki, additional, Nakamura, Masaki, additional, Nishi, Takahiro, additional, Noji, Shumpei, additional, Ota, Shinsuke, additional, Suzuki, Ken, additional, Takeda, Hiroyuki, additional, Todoroki, Koichi, additional, Tsukada, Kyo, additional, Uesaka, Tomohiro, additional, Weick, Helmut, additional, and Yoshida, Koichi, additional

Published
2012
Full Text
View/download PDF

111. Industrial Application of Radioactive Ion Beams at the RIKEN RI Beam Factory

Author

Kambara, Tadashi, primary, Yoshida, Atsushi, additional, Yanagisawa, Yoshiyuki, additional, Kameda, Daisuke, additional, Fukuda, Naoki, additional, Ohnishi, Tetsuya, additional, Kubo, Toshiyuki, additional, Uemoto, Ryuji, additional, Nagano, Akira, additional, Uno, Hiroyuki, additional, Hamm, Marianne E., additional, and Hamm, Robert W., additional

Published
2011
Full Text
View/download PDF

112. Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon

Author

Ohnishi, Tetsuya, primary, Kubo, Toshiyuki, additional, Kusaka, Kensuke, additional, Yoshida, Atsushi, additional, Yoshida, Koichi, additional, Ohtake, Masao, additional, Fukuda, Naoki, additional, Takeda, Hiroyuki, additional, Kameda, Daisuke, additional, Tanaka, Kanenobu, additional, Inabe, Naohito, additional, Yanagisawa, Yoshiyuki, additional, Gono, Yasuyuki, additional, Watanabe, Hiroshi, additional, Otsu, Hideaki, additional, Baba, Hidetada, additional, Ichihara, Takashi, additional, Yamaguchi, Yoshitaka, additional, Takechi, Maya, additional, Nishimura, Shunji, additional, Ueno, Hideki, additional, Yoshimi, Akihiro, additional, Sakurai, Hiroyoshi, additional, Motobayashi, Tohru, additional, Nakao, Taro, additional, Mizoi, Yutaka, additional, Matsushita, Masafumi, additional, Ieki, Kazuo, additional, Kobayashi, Nobuyuki, additional, Tanaka, Kana, additional, Kawada, Yosuke, additional, Tanaka, Naoki, additional, Deguchi, Shigeki, additional, Satou, Yoshiteru, additional, Kondo, Yosuke, additional, Nakamura, Takashi, additional, Yoshinaga, Kenta, additional, Ishii, Chihiro, additional, Yoshii, Hideakira, additional, Miyashita, Yuki, additional, Uematsu, Nobuya, additional, Shiraki, Yasutsugu, additional, Sumikama, Toshiyuki, additional, Chiba, Junsei, additional, Ideguchi, Eiji, additional, Saito, Akito, additional, Yamaguchi, Takayuki, additional, Hachiuma, Isao, additional, Suzuki, Takeshi, additional, Moriguchi, Tetsuaki, additional, Ozawa, Akira, additional, Ohtsubo, Takashi, additional, A. Famiano, Michael, additional, Geissel, Hans, additional, S. Nettleton, Anthony, additional, B. Tarasov, Oleg, additional, P. Bazin, Daniel, additional, M. Sherrill, Bradley, additional, L. Manikonda, Shashikant, additional, and A. Nolen, Jerry, additional

Published
2010
Full Text
View/download PDF

113. ANOMALOUSLY HINDERED E2 STRENGTHS IN 16,18C

Author

ONG, HOOI JIN, primary, IMAI, NOBUAKI, additional, SUZUKI, DAISUKE, additional, IWASAKI, HIRONORI, additional, ONISHI, TAKEO, additional, SUZUKI, MASARU, additional, NAKAO, TARO, additional, ICHIKAWA, YUICHI, additional, OTA, SHINSUKE, additional, SAKURAI, HIROYOSHI, additional, TAKEUCHI, SATOSHI, additional, AOI, NORI, additional, BABA, HIDETADA, additional, BISHOP, SHAWN, additional, ISHIHARA, MASAYASU, additional, KUBO, TOSHIYUKI, additional, MOTOBAYASHI, TOHRU, additional, YANAGISAWA, YOSHIYUKI, additional, TOGANO, YASUHIRO, additional, KURITA, KAZUO, additional, KONDO, YOSUKE, additional, NAKAMURA, TAKASHI, additional, and OKUMURA, TOSHIFUMI, additional

Published
2009
Full Text
View/download PDF

114. Identification of New Isotopes 125Pd and 126Pd Produced by In-Flight Fission of 345 MeV/nucleon 238U: First Results from the RIKEN RI Beam Factory

Author

Ohnishi, Tetsuya, primary, Kubo, Toshiyuki, additional, Kusaka, Kensuke, additional, Yoshida, Atsushi, additional, Yoshida, Koichi, additional, Fukuda, Naoki, additional, Ohtake, Masao, additional, Yanagisawa, Yoshiyuki, additional, Takeda, Hiroyuki, additional, Kameda, Daisuke, additional, Yamaguchi, Yoshitaka, additional, Aoi, Nori, additional, Yoneda, Ken-ichiro, additional, Otsu, Hideaki, additional, Takeuchi, Satoshi, additional, Sugimoto, Takashi, additional, Kondo, Yosuke, additional, Scheit, Heiko, additional, Gono, Yasuyuki, additional, Sakurai, Hiroyoshi, additional, Motobayashi, Tohru, additional, Suzuki, Hiroshi, additional, Nakao, Taro, additional, Kimura, Hitomi, additional, Mizoi, Yutaka, additional, Matsushita, Masafumi, additional, Ieki, Kazuo, additional, Kuboki, Takamasa, additional, Yamaguchi, Takayuki, additional, Suzuki, Takeshi, additional, Ozawa, Akira, additional, Moriguchi, Tetsuaki, additional, Yasuda, Yusuke, additional, Nakamura, Takashi, additional, Nannichi, Takashi, additional, Shimamura, Tomoyuki, additional, Nakayama, Yoshiaki, additional, Geissel, Hans, additional, Weick, Helmut, additional, A. Nolen, Jerry, additional, B. Tarasov, Oleg, additional, S. Nettleton, Anthony, additional, P. Bazin, Daniel, additional, M. Sherrill, Bradley, additional, J. Morrissey, David, additional, and Mittig, Wolfgang, additional

Published
2008
Full Text
View/download PDF

116. Industrial Application of Radioactive Ion Beams at the RIKEN RI Beam Factory.

Author

Kambara, Tadashi, Yoshida, Atsushi, Yanagisawa, Yoshiyuki, Kameda, Daisuke, Fukuda, Naoki, Ohnishi, Tetsuya, Kubo, Toshiyuki, Uemoto, Ryuji, Nagano, Akira, and Uno, Hiroyuki

Subjects
ION bombardment, INDUSTRIAL applications, ION accelerators, RADIOISOTOPES, PHYSICS experiments, MACHINE separators, NUCLEAR industry
Abstract

The Radioactive Ion Beam Factory (RIBF) at RIKEN is a heavy-ion accelerator facility that can provide intensive beams of radioactive isotopes (RI beam) produced at in-flight RI-beam separators. While the facility is used for experiments of various basic research fields, a new project has been started to open the facility to non-academic proposals from industry. We show an overview of the RIBF and the project of industrial use, and present a utilization of an RI-beam for development of wear diagnostics of industrial materials. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF

118. Coulomb Dissociation of Halo Nuclei

Author

Fukuda, Naoki, primary, Nakamura, Takashi, additional, Kobayashi, Toshio, additional, Otsu, Hideaki, additional, Aoi, Nori, additional, Imai, Nobuaki, additional, Iwasaki, Hironori, additional, Kubo, Toshiyuki, additional, Mengoni, Alberto, additional, Notani, Masahiro, additional, Sakurai, Hiroyoshi, additional, Shimoura, Susumu, additional, Teranishi, Takashi, additional, Watanabe, Yutaka X., additional, Yoneda, Ken-ichiro, additional, and Ishihara, Masayasu, additional

Published
2002
Full Text
View/download PDF

119. Coulomb Excitation of24Si

Author

Kanno, Shouko, primary, Gomi, Tomoko, additional, Motobayashi, Tohru, additional, Yoneda, Ken-ichiro, additional, Aoi, Nori, additional, Ando, Yoshiaki, additional, Baba, Hidetada, additional, Demichi, Kimihiko, additional, Fülöp, Zsolt, additional, Futakami, Udai, additional, Hasegawa, Hirokazu, additional, Higurashi, Yoshihide, additional, Ieki, Kazuo, additional, Imai, Nobuaki, additional, Iwasa, Naohito, additional, Iwasaki, Hironori, additional, Kubo, Toshiyuki, additional, Kubono, Shigeru, additional, Kunibu, Makoto, additional, Matsuyama, Yuuichi U., additional, Michimasa, Shin'ichiro, additional, Minemura, Toshiyuki, additional, Murakami, Hiroyuki, additional, Nakamura, Takashi, additional, Saito, Akito, additional, Sakurai, Hiroyoshi, additional, Serata, Masaki, additional, Shimoura, Susumu, additional, Sugimoto, Takashi, additional, Takeshita, Eri, additional, Takeuchi, Satoshi, additional, Ue, Koji, additional, Yamada, Kazunari, additional, Yanagisawa, Yoshiyuki, additional, Yoshida, Atsushi, additional, and Ishihara, Masayasu, additional

Published
2002
Full Text
View/download PDF

120. Assignment of the Ground-State Spin-Parity for17C throughg-Factor Measurement

Author

Ogawa, Hiroshi, primary, Asahi, Koichiro, additional, Ueno, Hideki, additional, Miyoshi, Hisanori, additional, Kameda, Daisuke, additional, Imai, Nobuaki, additional, Yoneda, Ken-ichiro, additional, Watanabe, Hiroshi, additional, Suga, Toshitaka, additional, Ohno, Ken-ichi, additional, Yoshimi, Akihiro, additional, Sato, Wataru, additional, Sakai, Kenji, additional, Yogo, Katsunori, additional, Kobayashi, Yoshio, additional, Yoshida, Atsushi, additional, Kubo, Toshiyuki, additional, and Ishihara, Masayasu, additional

Published
2002
Full Text
View/download PDF

121. Coulomb Dissociation of23Al

Author

Gomi, Tomoko, primary, Motobayashi, Tohru, additional, Yoneda, Ken-ichiro, additional, Kanno, Shouko, additional, Aoi, Nori, additional, Ando, Yoshiaki, additional, Baba, Hidetada, additional, Demichi, Kimihiko, additional, Fülöp, Zsolt, additional, Futakami, Udai, additional, Hasegawa, Hirokazu, additional, Higurashi, Yoshihide, additional, Ieki, Kazuo, additional, Imai, Nobuaki, additional, Iwasa, Naohito, additional, Iwasaki, Hironori, additional, Kubo, Toshiyuki, additional, Kubono, Shigeru, additional, Kunibu, Makoto, additional, Matsuyama, Yuuichi U., additional, Michimasa, Shin'ichiro, additional, Minemura, Toshiyuki, additional, Murakami, Hiroyuki, additional, Nakamura, Takashi, additional, Saito, Akito, additional, Sakurai, Hiroyoshi, additional, Serata, Masaki, additional, Shimoura, Susumu, additional, Sugimoto, Takashi, additional, Takeshita, Eri, additional, Takeuchi, Satoshi, additional, Ue, Koji, additional, Yamada, Kazunari, additional, Yanagisawa, Yoshiyuki, additional, Yoshida, Atsushi, additional, and Ishihara, Masayasu, additional

Published
2002
Full Text
View/download PDF

128. Study of the7Be(p,γ)8B Reaction with the Coulomb Dissociation Method

Author

Iwasa, Naohito, primary, Motobayashi, Tohru, additional, Ando, Yoshiaki, additional, Kurokawa, Meiko, additional, Murakami, Hiroyuki, additional, Ruan, Jian-Zhi, additional, Shimoura, Susumu, additional, Shirato, Shoji, additional, Inabe, Naohito, additional, Kubo, Toshiyuki, additional, Watanabe, Yasushi, additional, Gai, Moshe, additional, France III, Ralph, additional, Hahn, Kevin Insik, additional, Zhao, Zhiping, additional, Nakamura, Takashi, additional, Teranishi, Takashi, additional, Futami, Yasuyuki, additional, Furutaka, Kazuyoshi, additional, Delbar, Therry, additional, and Ishihara, Masayasu, additional

Published
1996
Full Text
View/download PDF

130. Measurement of Pionic Sn atoms at the RI beam factory.

Author

Itahashi, Kenta, Berg, Georg, Fujioka, Hiroyuki, Geissel, Hans, Hayano, Ryugo, Hirenzaki, Satoru, Ikeno, Natsumi, Inabe, Naohito, Itoh, Satoshi, Kameda, Daisuke, Kubo, Toshiyuki, Matsubara, Hiroaki, Michimasa, Shinichiro, Miki, Kenjiro, Miya, Hiroyuki, Nakamura, Masaki, Nishi, Takahiro, Noji, Shumpei, Ota, Shinsuke, and Suzuki, Ken

Subjects
SPECTRUM analysis, TIN, ATOMIC spectra, MASS spectrometry, PION beams, PARTICLE beams
Abstract

We have measured the energy spectrum of pionic Sn atoms by missing-mass spectroscopy of the Sn( d, He) reaction near the π emission threshold. The measurement serves as a pilot experiment for high precision systematic spectroscopy of deeply bound pionic atoms in a new pionic Atom Factory project (piAF) at the RI beam factory (RIBF) of RIKEN. The status of the analysis is reported. [ABSTRACT FROM AUTHOR]

Published
2012
Full Text
View/download PDF

131. ANOMALOUSLY HINDERED E2 STRENGTHS IN 16,18C.

Author

ONG, HOOI JIN, IMAI, NOBUAKI, SUZUKI, DAISUKE, IWASAKI, HIRONORI, ONISHI, TAKEO, SUZUKI, MASARU, NAKAO, TARO, ICHIKAWA, YUICHI, OTA, SHINSUKE, SAKURAI, HIROYOSHI, TAKEUCHI, SATOSHI, AOI, NORI, BABA, HIDETADA, BISHOP, SHAWN, ISHIHARA, MASAYASU, KUBO, TOSHIYUKI, MOTOBAYASHI, TOHRU, YANAGISAWA, YOSHIYUKI, TOGANO, YASUHIRO, and KURITA, KAZUO

Subjects
ANGULAR correlations (Nuclear physics), NUCLEAR reactions, QUADRUPOLES, HAMILTONIAN systems, HARMONIC oscillators
Abstract

Lifetime measurement of the first excited 2+ state in 18C was performed using an upgraded recoil shadow method to determine the electric quadrupole transition. The measured mean lifetime is 18.9 ± 0.9 (stat) ± 4.4 (syst) ps, which corresponds to a $B(E2;\;2_1^+ \to 0_{{\rm{gs}}}^+)$ value of 4.3 ± 0.2 ± 1.0 e2fm4, or about 1.5 Weisskopf units. The mean lifetime of the first 2+ state in 16C was remeasured to be about 18 ps, about four times shorter than the value reported previously. By incorporating the γ-ray angular distribution measured in this work into the previous measurement, this discrepancy has been explained. The observed transition strengths in 16,18C are hindered compared to the empirical transition strengths, indicating that the anomalous hindered E2 strength observed in 16C persists in 18C. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

135. Variable frequency heavy-ion linac, RILAC

Author

Odera, Masatoshi, primary, Chiba, Yoshiaki, additional, Tonuma, Tadao, additional, Hemmi, Masatake, additional, Miyazawa, Yoshitoshi, additional, Inoue, Toshihiko, additional, Kambara, Tadashi, additional, Kase, Masayuki, additional, Kubo, Toshiyuki, additional, and Yoshida, Fusako, additional

Published
1984
Full Text
View/download PDF

136. Analyzing Power-Polarization Inequality in the Inelastic Scattering of Protons on 12C for Incident Energies from 22.0 to 29.0 MeV

Author

Fujisawa, Takashi, primary, Kishida, Norio, additional, Kubo, Toshiyuki, additional, Wada, Takeshi, additional, Toba, Yoshiyuki, additional, Hasegawa, Takeo, additional, Sekiguchi, Masayuki, additional, Ueda, Nozomu, additional, Yasue, Masaharu, additional, Soga, Fuminori, additional, Kamitsubo, Hiromichi, additional, Nakamura, Masanobu, additional, Hatanaka, Kichiji, additional, Wakuta, Yoshihisa, additional, Tanaka, Teruaki, additional, and Nagao, Akihiro, additional

Published
1981
Full Text
View/download PDF

141. Energy resolution of gas ionization chamber for high-energy heavy ions.

Author

Sato, Yuki, Taketani, Atsushi, Fukuda, Naoki, Takeda, Hiroyuki, Kameda, Daisuke, Suzuki, Hiroshi, Shimizu, Yohei, Nishimura, Daiki, Fukuda, Mitsunori, Inabe, Naohito, Murakami, Hiroyuki, Yoshida, Koichi, and Kubo, Toshiyuki

Abstract

The energy resolution is reported for high-energy heavy ions with energies of nearly 340 MeV/nucleon and was measured using a gas ionization chamber filled with a 90%Ar/10%CH4 gas mixture. We observed that the energy resolution is proportional to the inverse of the atomic number of incident ions and to the inverse-square-root of the gas thickness. These results are consistent with the Bethe–Bloch formula for the energy loss of charged particles and the Bohr expression for heavy ion energy straggling. In addition, the influence of high-energy δ-rays generated in the detector on the energy deposition is discussed. [ABSTRACT FROM AUTHOR]

Published
2014
Full Text
View/download PDF

142. Coulomb Dissociation of Halo Nuclei

Author

Fukuda, Naoki, Nakamura, Takashi, Kobayashi, Toshio, Otsu, Hideaki, Aoi, Nori, Imai, Nobuaki, Iwasaki, Hironori, Kubo, Toshiyuki, Mengoni, Alberto, Notani, Masahiro, Sakurai, Hiroyoshi, Shimoura, Susumu, Teranishi, Takashi, Watanabe, Yutaka X., Yoneda, Ken-ichiro, and Ishihara, Masayasu

Abstract

Coulomb dissociation of loosely bound nuclei 11Be and 15C have been studied in a kinematically complete measurement. For 11Be, the n-10Be relative energy spectrum has been analyzed as a function of the impact parameter, b. The obtained spectrum with b ≥30 fm agrees very well with the first order perturbation theory assuming a pure Coulomb process. It suggests that a selection of the impact parameter is effective to exclude the higher order effect and the nuclear breakup contribution from the measured dissociation cross section. The spectroscopic factor for 10Be(0+) ⊗1s1/2 in the ground state is then extracted to be 0.69(3). The result of 15C has been applied to determine the 14C(n,γ)15C cross section, which is relevant to the stellar nuclear synthesis such as the CNO cycle in low mass AGB stars. The obtained neutron capture cross section is consistent with that of the p-wave direct capture process.

Published
2013
Full Text
View/download PDF

143. Coulomb Excitation of 24Si

Author

Kanno, Shouko, Gomi, Tomoko, Motobayashi, Tohru, Yoneda, Ken-ichiro, Aoi, Nori, Ando, Yoshiaki, Baba, Hidetada, Demichi, Kimihiko, Fülöp, Zsolt, Futakami, Udai, Hasegawa, Hirokazu, Higurashi, Yoshihide, Ieki, Kazuo, Imai, Nobuaki, Iwasa, Naohito, Iwasaki, Hironori, Kubo, Toshiyuki, Kubono, Shigeru, Kunibu, Makoto, Matsuyama, Yuuichi U., Michimasa, Shin'ichiro, Minemura, Toshiyuki, Murakami, Hiroyuki, Nakamura, Takashi, Saito, Akito, Sakurai, Hiroyoshi, Serata, Masaki, Shimoura, Susumu, Sugimoto, Takashi, Takeshita, Eri, Takeuchi, Satoshi, Ue, Koji, Yamada, Kazunari, Yanagisawa, Yoshiyuki, Yoshida, Atsushi, and Ishihara, Masayasu

Abstract

We have measured Coulomb excitation of 24Si to its first excited state to obtain the E2 transition probability. This is the first measurement of B(E2) for a TZ = −2 nucleus, which enables us to compare their transition probabilities between the mirror pair of T = 2, namely 24Si and 24Ne.

Published
2013
Full Text
View/download PDF

144. Assignment of the Ground-State Spin-Parity for 17C through g-Factor Measurement

Author

Ogawa, Hiroshi, Asahi, Koichiro, Ueno, Hideki, Miyoshi, Hisanori, Kameda, Daisuke, Imai, Nobuaki, Yoneda, Ken-ichiro, Watanabe, Hiroshi, Suga, Toshitaka, Ohno, Ken-ichi, Yoshimi, Akihiro, Sato, Wataru, Sakai, Kenji, Yogo, Katsunori, Kobayashi, Yoshio, Yoshida, Atsushi, Kubo, Toshiyuki, and Ishihara, Masayasu

Abstract

The g-factor for the 17C ground state was measured by means of the β-NMR spectroscopy with a spin-polarized fragment beam. From the tentative result |g (17C)| = 0.5054(25), we conclude that the ground-state spin-parity for 17C is 3/2+.

Published
2013
Full Text
View/download PDF

145. Coulomb Dissociation of 23Al

Author

Gomi, Tomoko, Motobayashi, Tohru, Yoneda, Ken-ichiro, Kanno, Shouko, Aoi, Nori, Ando, Yoshiaki, Baba, Hidetada, Demichi, Kimihiko, Fülöp, Zsolt, Futakami, Udai, Hasegawa, Hirokazu, Higurashi, Yoshihide, Ieki, Kazuo, Imai, Nobuaki, Iwasa, Naohito, Iwasaki, Hironori, Kubo, Toshiyuki, Kubono, Shigeru, Kunibu, Makoto, Matsuyama, Yuuichi U., Michimasa, Shin'ichiro, Minemura, Toshiyuki, Murakami, Hiroyuki, Nakamura, Takashi, Saito, Akito, Sakurai, Hiroyoshi, Serata, Masaki, Shimoura, Susumu, Sugimoto, Takashi, Takeshita, Eri, Takeuchi, Satoshi, Ue, Koji, Yamada, Kazunari, Yanagisawa, Yoshiyuki, Yoshida, Atsushi, and Ishihara, Masayasu

Published
2013
Full Text
View/download PDF

146. Downregulation of SMOC1 is associated with progression of colorectal traditional serrated adenomas.

Author

Aoki H, Takasawa A, Yamamoto E, Niinuma T, Yamano HO, Harada T, Kubo T, Yorozu A, Kitajima H, Ishiguro K, Kai M, Katanuma A, Shinohara T, Nakase H, Sugai T, Osanai M, and Suzuki H

Subjects
Humans, Down-Regulation, Hyperplasia, Osteonectin, Proto-Oncogene Proteins B-raf genetics, Adenoma genetics, Adenoma pathology, Colonic Polyps pathology, Colorectal Neoplasms genetics, Colorectal Neoplasms pathology
Abstract

Background: Aberrant DNA methylation is prevalent in colorectal serrated lesions. We previously reported that the CpG island of SMOC1 is frequently methylated in traditional serrated adenomas (TSAs) and colorectal cancers (CRCs) but is rarely methylated in sessile serrated lesions (SSLs). In the present study, we aimed to further characterize the expression of SMOC1 in early colorectal lesions., Methods: SMOC1 expression was analyzed immunohistochemically in a series of colorectal tumors (n = 199) and adjacent normal colonic tissues (n = 112)., Results: SMOC1 was abundantly expressed in normal colon and SSLs while it was significantly downregulated in TSAs, advanced adenomas and cancers. Mean immunohistochemistry scores were as follows: normal colon, 24.2; hyperplastic polyp (HP), 18.9; SSL, 23.8; SSL with dysplasia (SSLD)/SSL with early invasive cancer (EIC), 15.8; TSA, 5.4; TSA with high grade dysplasia (HGD)/EIC, 4.7; non-advanced adenoma, 21.4; advanced adenoma, 11.9; EIC, 10.9. Higher levels SMOC1 expression correlated positively with proximal colon locations and flat tumoral morphology, reflecting its abundant expression in SSLs. Among TSAs that contained both flat and protruding components, levels of SMOC1 expression were significantly lower in the protruding components., Conclusion: Our results suggest that reduced expression of SMOC1 is associated with progression of TSAs and conventional adenomas and that SMOC1 expression may be a biomarker for diagnosis of serrated lesions and risk prediction in colorectal tumors., (© 2024. The Author(s).)

Published
2024
Full Text
View/download PDF

147. Prognosis of Elderly Patients with Gastric Cancer Treated with the Best Supportive Care.

Author

Kubo T, Adachi Y, Mita H, Adachi Y, Iwata N, Yoshida Y, and Endo T

Subjects
Humans, Male, Female, Aged, 80 and over, Retrospective Studies, Prognosis, Aged, Risk Factors, Survival Rate, Stomach Neoplasms mortality, Stomach Neoplasms therapy, Stomach Neoplasms pathology, Neoplasm Staging, Palliative Care methods, Palliative Care statistics & numerical data
Abstract

Background: The prognosis of gastric cancer has gradually improved as treatments have evolved. However, curative treatments might be difficult when gastric cancer is detected in the elderly or individuals with multiple comorbidities. This study investigated the prognosis of elderly patients with gastric cancer who received best supportive care (BSC)., Methods: This single-center observational study retrospectively reviewed medical records from elderly patients (>65 years-old) diagnosed with gastric cancer between 2014 and 2019 who received BSC., Results: Data were obtained from 39 patients with a median age of 90 years. Median follow-up period was 207 days. Median survival time for all causes was 508 days for stage 0, 1026 days for stage I, 319 days for stage II, 317 days for stage III, and 43 days for stage IV. Median survival time for cancer-specific deaths was 1987 days for stage 0, 1280 days for stage I, 331 days for stage II, 371 days for stage III, and 43 days for stage IV. Univariate analyses identified 'stage' and performance status as risk factors for both overall and cancer-specific mortality. In multivariate analyses, 'stage' was an independent risk factor predicting overall mortality (HR=3.71, 95%CI=1.73-7.98, P < 0.001) and both 'stage' and performance status were independent risk factors predicting cancer-specific mortality (HR=4.06 and 8.95, 95%CI=1.13-14.51 and 3.00-26.67, P = 0.031 and P < 0.001, respectively)., Conclusion: This result will help clarify the natural history of elderly patients with gastric cancer and provide useful information when choosing treatments in the future., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Published
2024
Full Text
View/download PDF

148. ACLP Activates Cancer-Associated Fibroblasts and Inhibits CD8+ T-Cell Infiltration in Oral Squamous Cell Carcinoma.

Author

Sekiguchi S, Yorozu A, Okazaki F, Niinuma T, Takasawa A, Yamamoto E, Kitajima H, Kubo T, Hatanaka Y, Nishiyama K, Ogi K, Dehari H, Kondo A, Kurose M, Obata K, Kakiuchi A, Kai M, Hirohashi Y, Torigoe T, Kojima T, Osanai M, Takano K, Miyazaki A, and Suzuki H

Abstract

We previously showed that upregulation of adipocyte enhancer-binding protein 1 ( AEBP1 ) in vascular endothelial cells promotes tumor angiogenesis. In the present study, we aimed to clarify the role of stromal AEBP1 /ACLP expression in oral squamous cell carcinoma (OSCC). Immunohistochemical analysis showed that ACLP is abundantly expressed in cancer-associated fibroblasts (CAFs) in primary OSCC tissues and that upregulated expression of ACLP is associated with disease progression. Analysis using CAFs obtained from surgically resected OSCCs showed that the expression of AEBP1 /ACLP in CAFs is upregulated by co-culture with OSCC cells or treatment with TGF-β1, suggesting cancer-cell-derived TGF-β1 induces AEBP1 /ACLP in CAFs. Collagen gel contraction assays showed that ACLP contributes to the activation of CAFs. In addition, CAF-derived ACLP promotes migration, invasion, and in vivo tumor formation by OSCC cells. Notably, tumor stromal ACLP expression correlated positively with collagen expression and correlated inversely with CD8+ T cell infiltration into primary OSCC tumors. Boyden chamber assays suggested that ACLP in CAFs may attenuate CD8+ T cell migration. Our results suggest that stromal ACLP contributes to the development of OSCCs, and that ACLP is a potential therapeutic target., Competing Interests: All authors declare no conflict of interest.

Published
2023
Full Text
View/download PDF

149. Jejunal Angiodysplasia in an Elderly Patient with Aortic Stenosis: Significance of Von Willebrand Factor as an Etiologic Factor.

Author

Kubo T, Yoshii S, Yamano HO, Saito M, Sakata K, Sugita S, Hasegawa T, Horiuchi H, and Nakase H

Subjects
Female, Humans, Aged, Aged, 80 and over, von Willebrand Factor, Gastrointestinal Hemorrhage diagnosis, Aortic Valve Stenosis complications, Aortic Valve Stenosis surgery, Transcatheter Aortic Valve Replacement adverse effects, Colonic Diseases complications, Angiodysplasia complications, Angiodysplasia diagnosis, von Willebrand Diseases complications, von Willebrand Diseases diagnosis
Abstract

Heyde's syndrome is a disease in which patients with aortic stenosis (AS) bleed from angiodysplasia. An 80-year-old woman with a history of severe AS was referred to our hospital with melena and anemia. The patient underwent jejunal resection after repeated blood transfusions. A pathological examination revealed angiodysplasia, and the patient's plasma lacked high-molecular-weight von Willebrand factor (VWF) multimers, leading to the diagnosis of Heyde's syndrome. The patient underwent transcatheter aortic valve implantation (TAVI) one year after the diagnosis, and the VWF index recovered. This is a valuable case in which the pathological analysis of angiodysplasia associated with Heyde's syndrome was possible.

Published
2023
Full Text
View/download PDF

150. TM4SF1-AS1 inhibits apoptosis by promoting stress granule formation in cancer cells.

Author

Kitajima H, Maruyama R, Niinuma T, Yamamoto E, Takasawa A, Takasawa K, Ishiguro K, Tsuyada A, Suzuki R, Sudo G, Kubo T, Mitsuhashi K, Idogawa M, Tange S, Toyota M, Yoshido A, Kumegawa K, Kai M, Yanagihara K, Tokino T, Osanai M, Nakase H, and Suzuki H

Subjects
Humans, Cell Line, Tumor, Stress Granules, Apoptosis genetics, Cell Proliferation genetics, Gene Expression Regulation, Neoplastic, Antigens, Surface, Neoplasm Proteins metabolism, RNA, Long Noncoding genetics, Stomach Neoplasms pathology, MicroRNAs genetics
Abstract

Long noncoding RNAs (lncRNAs) play pivotal roles in tumor development. To identify dysregulated lncRNAs in gastric cancer (GC), we analyzed genome-wide trimethylation of histone H3 lysine 4 (H3K4me3) to screen for transcriptionally active lncRNA genes in the non-tumorous gastric mucosa of patients with GC and healthy individuals. We found that H3K4me3 at TM4SF1-AS1 was specifically upregulated in GC patients and that the expression of TM4SF1-AS1 was significantly elevated in primary and cultured GC cells. TM4SF1-AS1 contributes to GC cell growth in vitro and in vivo, and its oncogenic function is mediated, at least in part, through interactions with purine-rich element-binding protein α (Pur-α) and Y-box binding protein 1 (YB-1). TM4SF1-AS1 also activates interferon signaling in GC cells, which is dependent on Pur-α and RIG-I. Chromatin isolation by RNA purification (ChIRP)-mass spectrometry demonstrated that TM4SF1-AS1 was associated with several stress granule (SG)-related proteins, including G3BP2, RACK1, and DDX3. Notably, TM4SF1-AS1 promoted SG formation and inhibited apoptosis in GC cells by sequestering RACK1, an activator of the stress-responsive MAPK pathway, within SGs. TM4SF1-AS1-induced SG formation and apoptosis inhibition are dependent on Pur-α and YB-1. These findings suggested that TM4SF1-AS1 contributes to tumorigenesis by enhancing SG-mediated stress adaptation., (© 2023. The Author(s).)

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results