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433 results on '"Fujii, T."'

1. Constraints on the diffuse photon flux with energies above 10(18) eV using the surface detector of the Telescope Array experiment

Author

Abbasi, R.U., Abe, M., T., Abu-Zayyad, Allen, M., Azuma, R., Barcikowski, E., Belz, J.W., Bergman, D.R., Blake, S.A., Cady, R., Cheon, B.G., Chiba, J., Chikawa, M., di Matteo, A., Fujii, T., Fujita, K., Fukushima, M., Furlich, G., Goto, T., Hanlon, W., M. Hayashi, Hayashii, Y., Hayashida, N., Hibino, K., Honda, K., Ikeda, D., Inoue, N., Ishii, T., Ishimori, R., Ito, H., Ivanov, D., Jeong, H.M., Jeong, S., Jui, C.C.H., Kadota, K., Kakimoto, F., O. Kalashev, Kasahara, K., Kawai, H., Kawakami, S., Kawana, S., Kawata, K., Kido, E., Kim, H.B., Kim, J.H., J.H. Kim, Kishigamii, S., Kitamura, S., Kitamura, Y., Kuzmin, V., Kuznetsov, M., Y.J. Kwon, Lee, K.H., Lubsandorzhiev, B., Lundquist, J.P., Machida, K., Martens, K., T. Matsuyama, Matthews, J.N., Mayta, R., Minamino, M., Mukai, K., Myers, I., Nagasawa, K., Nagataki, S., Ohnishi, M., Ohoka, H., Okuda, T., Omura, Y., Ono, M., Onogi, R., Oshima, A., Ozawa, S., Park, I.H., Piskunov, M.S., Pshirkov, M.S., Remington, J., Rodriguez, D.C., Rubtsov, G.I., Ryu, D., Sagawa, H., Sahara, R., Saito, K., Saito, Y., Sakaki, N., Sakurai, N., Scott, L.M., Seki, T., Sekino, K., Shah, P.D., Shibata, F., Shibata, T., Shimodaira, H., Shin, B.K., Shin, H.S., Smith, J.D., Sokolsky, P., Stokes, B.T., Stratton, S.R., Stroman, T.A., Suzawa, T., Takagi, Y., Takahashi, Y., Takamura, M., Takeda, M., Takeishi, R., Taketa, A., Takita, M., Tameda, Y., Tanaka, H., Tanaka, K., Tanaka, M., Thomas, S.B., Thomson, G.B., Tinyakov, P., Tkachev, I., Tokuno, H., Tomida, T., Troitsky, S., Tsunesada, Y., Tsutsumi, K., Uchihori, Y., Udo, S., Urban, F., Wong, T., Yamamoto, M., Yamane, R., Yamaoka, H., Yamazaki, K., Yang, J., Yashiro, K., Yoneda, Y., S. Yoshida, Yoshii, H., Zhezher, Y., Zundel, Z., and Uchihori, Yukio

Abstract

We present the results of the search for ultra-high-energy photons with nine years of data from the Telescope Array surface detector. A multivariate classifier is built upon 16 reconstructed parameters of the extensive air shower. These parameters are related to the curvature and the width of the shower front, the steepness of the lateral distribution function, and the timing parameters of the waveforms sensitive to the shower muon content. A total number of two photon candidates found in the search is fully compatible with the expected background. The 95% CL limits on the diffuse flux of the photons with energies greater than 1018.0, 1018.5, 1019.0, 1019.5 and 1020.0 eV are set at the level of 0.067, 0.012, 0.0036, 0.0013, 0.0013km−2yr−1sr−1 correspondingly.

Published
2019

5. An international code comparison study on coupled thermal, hydrologic and geomechanical processes of natural gas hydrate-bearing sediments

Author

White, M. D., Kneafsey, T. J., Seol, Y., Waite, W. F., Uchida, S., Lin, J. S., Myshakin, E. M., Gai, X., Gupta, Shubhangi, Reagan, M. T., Queiruga, A. F., Kimoto, S., Baker, R. C., Boswell, R., Ciferno, J., Collett, T., Choi, J., Dai, S., De La Fuente, M., Fu, P., Fujii, T., Intihar, C. G., Jang, J., Ju, X., Kang, J., Kim, J. H., Kim, J. T., Kim, S. J., Koh, C., Konno, Y., Kumagai, K., Lee, J. Y., Lee, W. S., Lei, L., Liu, F., Luo, H., Moridis, G. J., Morris, J., Nole, M., Otsuki, S., Sanchez, M., Shang, S., Shin, C., Shin, H. S., Soga, K., Sun, X., Suzuki, S., Tenma, N., Xu, T., Yamamoto, K., Yoneda, J., Yonkofski, C. M., Yoon, H. C., You, K., Yuan, Y., Zerpa, L., Zyrianova, M., White, M. D., Kneafsey, T. J., Seol, Y., Waite, W. F., Uchida, S., Lin, J. S., Myshakin, E. M., Gai, X., Gupta, Shubhangi, Reagan, M. T., Queiruga, A. F., Kimoto, S., Baker, R. C., Boswell, R., Ciferno, J., Collett, T., Choi, J., Dai, S., De La Fuente, M., Fu, P., Fujii, T., Intihar, C. G., Jang, J., Ju, X., Kang, J., Kim, J. H., Kim, J. T., Kim, S. J., Koh, C., Konno, Y., Kumagai, K., Lee, J. Y., Lee, W. S., Lei, L., Liu, F., Luo, H., Moridis, G. J., Morris, J., Nole, M., Otsuki, S., Sanchez, M., Shang, S., Shin, C., Shin, H. S., Soga, K., Sun, X., Suzuki, S., Tenma, N., Xu, T., Yamamoto, K., Yoneda, J., Yonkofski, C. M., Yoon, H. C., You, K., Yuan, Y., Zerpa, L., and Zyrianova, M.

Abstract

Highlights • Code comparisons build confidence in simulators to model interdependent processes. • International hydrate reservoir simulators are compared over five complex problems. • Geomechanical processes significantly impact response of gas hydrate reservoirs. • Simulators yielded comparable results, however many differences are noted. • Equivalent constitutive models are required to achieve agreement across simulators. Geologic reservoirs containing gas hydrate occur beneath permafrost environments and within marine continental slope sediments, representing a potentially vast natural gas source. Numerical simulators provide scientists and engineers with tools for understanding how production efficiency depends on the numerous, interdependent (coupled) processes associated with potential production strategies for these gas hydrate reservoirs. Confidence in the modeling and forecasting abilities of these gas hydrate reservoir simulators (GHRSs) grows with successful comparisons against laboratory and field test results, but such results are rare, particularly in natural settings. The hydrate community recognized another approach to building confidence in the GHRS: comparing simulation results between independently developed and executed computer codes on structured problems specifically tailored to the interdependent processes relevant for gas hydrate-bearing systems. The United States Department of Energy, National Energy Technology Laboratory, (DOE/NETL), sponsored the first international gas hydrate code comparison study, IGHCCS1, in the early 2000s. IGHCCS1 focused on coupled thermal and hydrologic processes associated with producing gas hydrates from geologic reservoirs via depressurization and thermal stimulation. Subsequently, GHRSs have advanced to model more complex production technologies and incorporate geomechanical processes into the existing framework of coupled thermal and hydrologic modeling. This paper contributes to the validation of these recen

Published
2020
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14. Energy dependence of total reaction cross sections for 17Ne on a proton target

Author

Moriguchi, T., Amano, M., Ozawa, A., Horiuchi, W., Abe, Y., Fujii, T., Kagesawa, R., Kamioka, D., Kitagawa, A., Mukai, M., Nagae, D., Sakaue, M., Sato, S., Suzuki, S., Suzuki, T., Yamaguchi, T., Yokota, K., Yasushi, Abe, Atsushi, Kitagawa, and Shinji, Sato

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

We measured the energy dependence of the total reaction cross sections (sigma_R) for the proton drip-line nucleus of neon isotopes, 17Ne, with a solid hydrogen target. The sigma_R on a proton target in the low- and intermediate-energy regions were provided, where only a few values are available for unstable nuclei. The new data were compared with theoretical calculations using the Glauber model. In the low-energy region (∼100A MeV), the theoretical cross sections overestimate the experimental ones, whereas the theoretical ones significantly underestimate the experimental data in the intermediate energy region (∼300-500A MeV). We discuss several possibilities for solving this discrepancy. This work suggests the necessity of more careful investigations of the energy dependence of sigma_R for various nuclei on a proton target to determine the nuclear size properties precisely.

Published
2020

18. FIRST RESULTS OF JT-60U ICRF HEATING SYSTEM

Author

Moriyama, S., primary, Fujii, T., additional, Saigusa, M., additional, Annoh, K., additional, Yokokura, K., additional, Igarashi, K., additional, Terakado, M., additional, Kimura, H., additional, and Yamamoto, T., additional

Published
1993
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21. Dielectric properties of anodic films on sputter-deposited Ti–Si porous columnar films

Author

Tanvir, M. Tauseef, Fujii, T., Aoki, Y., Fushimi, K., and Habazaki, H.

Subjects
Dielectric, Oblique angle deposition, Porous deposits, Non-equilibrium alloy, Anodic oxide
Abstract

For electrolytic capacitor application of the single-phase Ti alloys containing supersaturated silicon, which form anodic oxide films with superior dielectric properties, porous Ti–7 at% Si columnar films, as well as Ti columnar films, have been prepared by oblique angle magnetron sputtering on to aluminum substrate with a concave cell structure to enhance the surface area and hence capacitance. The deposited films of both Ti and Ti–7 at% Si have isolated columnar morphology with each column revealing nanogranular texture. The distances between columns are ∼500 nm, corresponding to the cell size of the textured substrate and the gaps between columns are 100–200 nm. When the porous Ti–7 at% Si film is anodized at a constant current density in ammonium pentaborate electrolyte, the growth of a uniform amorphous oxide film continues to ∼35 V, while it is limited to less than 6 V on the porous Ti film. The maximum voltage of the growth of uniform amorphous oxide films on the Ti–7 at% Si films is similar for both the flat and porous columnar films, suggesting little influence of surface roughness on the amorphous-tocrystalline transition of growing anodic oxide under the high electric field. Due to the suppression of crystallization to sufficiently high voltages, the anodic oxide films formed on the porous Ti–7 at% Si film shows markedly improved dielectric properties, in comparison with those on the porous Ti film.

Published
2011

22. Measurement of the processes e^+e^-→e^+e^- and e^+e^-→γγ at √s=52 GeV

Author

TOPAZ Collaboration, Adachi, I., 相原, 博昭, Dijkstra, H. B., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, N., 林井, 久樹, Higashi, S., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwata, S., 梶川, 良一, 釜江, 常好, Kato, S., 川端, 節彌, 吉見, 弘道, Kishida, T., 小林, 誠, Kuroda, S., 楠木, 規央, Maruyama, A., Maruyama, K., Masuda, H., Matsuda, T., Miyamoto, A., Morimoto, T., Nakamura, K., Nitoh, O., Noguchi, S., Ochiai, F., Ohshima, T., Okuno, H., Okusawa, T., Ozaki, H., Sato, T., Sai, F., Shimonaka, J., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Suwada, T., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tanaka, T., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamakawa, O., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoshimura, Y., Yoshioka, M., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., Takahashi, Tadayuki, TOPAZ Collaboration, Adachi, I., 相原, 博昭, Dijkstra, H. B., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, N., 林井, 久樹, Higashi, S., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwata, S., 梶川, 良一, 釜江, 常好, Kato, S., 川端, 節彌, 吉見, 弘道, Kishida, T., 小林, 誠, Kuroda, S., 楠木, 規央, Maruyama, A., Maruyama, K., Masuda, H., Matsuda, T., Miyamoto, A., Morimoto, T., Nakamura, K., Nitoh, O., Noguchi, S., Ochiai, F., Ohshima, T., Okuno, H., Okusawa, T., Ozaki, H., Sato, T., Sai, F., Shimonaka, J., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Suwada, T., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tanaka, T., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamakawa, O., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoshimura, Y., Yoshioka, M., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., and Takahashi, Tadayuki

Abstract

著者人数：71名

Published
2015

23. Charge asymmetry measurement in e^+e^-→μ^+μ^- and τ^+τ^- reactions at √s=55 GeV and 55 GeV

Author

TOPAZ Collaboration, Adachi, I., 相原, 博昭, Dijkstra, H. B., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, N., 林井, 久樹, Higashi, S., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwata, S., Iwasaki, H., 梶川, 良一, 釜江, 常好, Kato, S., 川端, 節彌, 吉見, 弘道, Kishida, T., 小林, 誠, Kuroda, S., 楠木, 規央, Maruyama, A., Maruyama, K., Masuda, H., Matsuda, T., Miyamoto, A., Morimoto, T., Nakamura, K., Nitoh, O., Noguchi, S., Ochiai, F., Ohshima, T., Okuno, H., Okusawa, T., Ozaki, H., Sato, T., Sai, F., Shimonaka, J., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Suwada, T., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tanaka, T., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamakawa, O., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoshimura, Y., Yoshioka, M., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., Takahashi, Tadayuki, TOPAZ Collaboration, Adachi, I., 相原, 博昭, Dijkstra, H. B., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, N., 林井, 久樹, Higashi, S., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwata, S., Iwasaki, H., 梶川, 良一, 釜江, 常好, Kato, S., 川端, 節彌, 吉見, 弘道, Kishida, T., 小林, 誠, Kuroda, S., 楠木, 規央, Maruyama, A., Maruyama, K., Masuda, H., Matsuda, T., Miyamoto, A., Morimoto, T., Nakamura, K., Nitoh, O., Noguchi, S., Ochiai, F., Ohshima, T., Okuno, H., Okusawa, T., Ozaki, H., Sato, T., Sai, F., Shimonaka, J., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Suwada, T., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tanaka, T., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamakawa, O., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoshimura, Y., Yoshioka, M., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., and Takahashi, Tadayuki

Abstract

著者人数：71名

Published
2015

24. A Search for a Fourth-Generation Charge-1/3(b') Quark Using Inclusive Muons in e^+e^- Annihilation at √s=56.5-60.8 GeV

Author

TOPAZ Collaboration, Adachi, I., 相原, 博昭, Doser, M., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, K., Fujiwara, N., 林井, 久樹, Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., 梶川, 良一, 釜江, 常好, Kato, S., Kato, Y., 川端, 節彌, Kayahara, Y., 吉見, 弘道, Kishida, T., 小林, 誠, Koltick, D., Kusuki, N., Levine, I., Maruyama, A., Maruyama, K., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Ozaki, H., Sasayama, N., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Yoshizawa, J., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Takahashi, Tadayuki, TOPAZ Collaboration, Adachi, I., 相原, 博昭, Doser, M., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, K., Fujiwara, N., 林井, 久樹, Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., 梶川, 良一, 釜江, 常好, Kato, S., Kato, Y., 川端, 節彌, Kayahara, Y., 吉見, 弘道, Kishida, T., 小林, 誠, Koltick, D., Kusuki, N., Levine, I., Maruyama, A., Maruyama, K., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Ozaki, H., Sasayama, N., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Yoshizawa, J., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., and Takahashi, Tadayuki

Abstract

著者人数：70名

Published
2015

25. Measurement of αs in e^+e^- Annihilation at √s=53. 3 GeV and 59. 5 GeV

Author

TOPAZ Collaboration, Adachi, I., 相原, 博昭, Doser, M., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, K., Fujiwara, N., 林井, 久樹, Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., 梶川, 良一, 釜江, 常好, Kato, S., Kato, Y., 川端, 節彌, Kayahara, Y., 吉見, 弘道, Kishida, T., 小林, 誠, Koltick, D., Kusuki, N., Levine, I., Maruyama, A., Maruyama, K., Matsuda, T., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Ozaki, H., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Takahashi, Tadayuki, TOPAZ Collaboration, Adachi, I., 相原, 博昭, Doser, M., 榎本, 良治, 藤井, 啓文, 藤井, 恵介, 藤井, 忠男, 藤本, 順平, Fujiwara, K., Fujiwara, N., 林井, 久樹, Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., 梶川, 良一, 釜江, 常好, Kato, S., Kato, Y., 川端, 節彌, Kayahara, Y., 吉見, 弘道, Kishida, T., 小林, 誠, Koltick, D., Kusuki, N., Levine, I., Maruyama, A., Maruyama, K., Matsuda, T., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Ozaki, H., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., 高橋, 忠幸, Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., and Takahashi, Tadayuki

Abstract

著者人数：69名

Published
2015

26. A Laser-Based TOF Monitoring System Using A High-Speed Vacuum Photo Diode

Author

藤井, 忠男, Hashimoto, Y., 影山, 達也, 中村, 健蔵, 佐井, 文憲, 坂元, 眞一, 佐藤, 慎司, 高橋, 忠幸, 谷森, 達, Umeda, Y., Yamamoto, S. S., Fujii, T., Kageyama, T., Nakamura, K., Sai, F., Sakamoto, S., Sato, S., Takahashi, Tadayuki, Tanimori, T., 藤井, 忠男, Hashimoto, Y., 影山, 達也, 中村, 健蔵, 佐井, 文憲, 坂元, 眞一, 佐藤, 慎司, 高橋, 忠幸, 谷森, 達, Umeda, Y., Yamamoto, S. S., Fujii, T., Kageyama, T., Nakamura, K., Sai, F., Sakamoto, S., Sato, S., Takahashi, Tadayuki, and Tanimori, T.

Abstract

著者人数：11名

Published
2015

27. A Search for Inclusive Production of Heavy Stable Particles by the TOPAZ detector at TRISTAN

Author

TOPAZ, Collaboration, Adachi, I., Anazawa, M., Doser, M., Fujio, N., Fujiwara, N., Hori, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., Kato, S., Kato, Y., Kishida, T., Koltick, D., Kurata, K., Levine, I., Maruyama, A., Maruyama, K., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nakagawa, N., Nakajima, N., Nishioka, H., Nitoh, O., Noguchi, S., Ochiai, F., Ohkura, M., Okuno, H., Okusawa, T., Onodera, S., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., Takahashi, T., Takamure, H., Tanimori, T., Tauchi, T., Teramoto, Y., Tsukamoto, T., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamauchi, M., Yoake, Y., Yoshizawa, J., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., and Takahashi, Tadayuki

Subjects
Physics, Nuclear and High Energy Physics, Energy loss, Particle physics, Range (particle radiation), Annihilation, Detector, Charge (physics), engineering.material, Nuclear physics, Topaz, engineering, Particle, Center of mass
Abstract

著者人数：70名, 資料番号: SA1002291000

Published
1990

28. Measurement of the Total Hadronic Cross Sections in e^+e^- Annihilation and Determination of the Standard Model Parameters

Author

TOPAZ, Collaboration, Adachi, I., Doser, M., Fujiwara, K., Fujiwara, N., Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., Kato, S., Kato, Y., Kayahara, Y., Kishida, T., Koltick, D., Levine, I., Maruyama, A., Maruyama, K., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Sasayama, N., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Yoshizawa, J., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., and Takahashi, Tadayuki

Subjects
Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Top quark, Particle physics, Annihilation, Electron–positron annihilation, High Energy Physics::Phenomenology, Electroweak interaction, Weinberg angle, lcsh:QC1-999, Standard Model, Nuclear physics, High Energy Physics::Experiment, Center of mass, Nuclear Experiment, lcsh:Physics
Abstract

著者人数：68名, 資料番号: SA1002292000

Published
1990

29. A Study of Pion Pair Production in the Two-Photon Process

Author

TOPAZ, Collaboration, Adachi, I., Doser, M., Fujiwara, K., Fujiwara, N., Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., Kato, S., Kato, Y., Kayahara, Y., Kishida, T., Koltick, D., Levine, I., Maruyama, A., Maruyama, K., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Sasayama, N., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Yoshizawa, J., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., and Takahashi, Tadayuki

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, engineering.material, Resonance (particle physics), law.invention, Topaz, Nuclear physics, Pion, Pair production, Two-photon excitation microscopy, law, engineering, Radiative transfer, High Energy Physics::Experiment, Invariant mass, Collider
Abstract

著者人数：68名, 資料番号: SA1002293000

Published
1990

34. ENERGY BALANCE OF THE LHRF HEATING EXPERIMENTS ON THE JFT-2 TOKAMAK

Author

Imai, T., primary, Suzuki, N., additional, Fujii, T., additional, Fujisawa, N., additional, Funahashi, A., additional, Iizuka, S., additional, Kasai, S., additional, Kumagai, K., additional, Maeno, M., additional, Nagashima, T., additional, Shiina, T., additional, Shoji, T., additional, Sugie, T., additional, Takeuchi, H., additional, Uehara, K., additional, Yamamoto, T., additional, Yamauchi, T., additional, and Yoshida, H., additional

Published
1981
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35. LIST OF CONTRIBUTORS AND DISCUSSANTS

Author

Adlercreutz, H., primary, Amsterdam, A., additional, Auletta, F., additional, Aurbach, G.D., additional, Baird, K.L., additional, Bartter, F.C., additional, Bergeron, J.J.M., additional, Bigos, T., additional, Birnbaumer, L., additional, Birnbaumer, M.E., additional, Blossey, H.-C., additional, Bogdanove, E.M., additional, Bradlow, H.L., additional, Broadus, A.E., additional, Bullock, L., additional, Burrows, H., additional, Campbell, G., additional, Carter, J., additional, Chatterton, R., additional, Chen, J., additional, Cohen, S., additional, Concannon, P.W., additional, Cortes-Gallegos, V., additional, Creutz, C.E., additional, Crickard, K., additional, Crigler, J.F., additional, Crowley, W.F., additional, Cutler, G.B., additional, Dobyns, B., additional, Donahoe, P.K., additional, Downs, R.W., additional, Dupont, B., additional, Dupre, J., additional, Eil, C., additional, Eng, J., additional, Faber, L.E., additional, Fellows, R., additional, Flier, J.S., additional, Friesen, H.G., additional, Fujii, T., additional, Geller, J., additional, George, F.W., additional, George, J.M., additional, Goldstein, A.L., additional, Greep, R.O., additional, Griffin, J.E., additional, Grody, W.W., additional, Grumbach, M.M., additional, Grunfeld, C., additional, Hall, N., additional, Harmon, J.T., additional, Harrison, L.C., additional, Hu, S., additional, Hughes, M.R., additional, Huhtaniemi, I.T., additional, Jaffe, R.B., additional, Jewelewicz, R., additional, Josefsberg, Z., additional, Kahn, C.R., additional, Karlsson, F.A., additional, Karsch, F.J., additional, Kasuga, M., additional, Khan, M.N., additional, Khan, R.J., additional, King, G.L., additional, Knobil, E., additional, Koritnik, D., additional, Krawietz, W., additional, Landreth, G.E., additional, Lang, U.C., additional, Lazier, C., additional, Leshin, M., additional, Levine, L.S., additional, Levine, M.A., additional, Low, T.L.K., additional, McClure, J.E., additional, Macdonald, G., additional, McDonald, T.J., additional, Marx, S.J., additional, Means, A.R., additional, Miller, R.E., additional, Mitchell, B.F., additional, Monder, C., additional, Mowszowicz, I., additional, Moyle, W.R., additional, Murphy, B.E.P., additional, Murray, T., additional, Naftolin, F., additional, Naor, Z., additional, Naylor, P.B., additional, New, M.I., additional, Nolin, J., additional, Odell, W.D., additional, O'Malley, B.W., additional, Pang, S., additional, Parsons, J., additional, Patel, B.A., additional, Pazoles, C.J., additional, Pearson, O.H., additional, Peck, E., additional, Pepe, G.J., additional, Podskalny, J.M., additional, Pollack, M., additional, Pollard, H.B., additional, Posner, B.I., additional, Postel-Vinay, M., additional, Raj, C., additional, Raj, H.G.M., additional, Rall, J.E., additional, Reen, S.A., additional, Rice, B.F., additional, Ringold, H.J., additional, Robaire, B., additional, Rothchild, I., additional, Roy, A.K., additional, Ryder, S.W., additional, Saenger, P.H., additional, Savard, K., additional, Schrader, W.T., additional, Serón-Ferré, M., additional, Shooter, E.M., additional, Sikstrom, R.A., additional, Singer, M.J., additional, Spaulding, S.W., additional, Spiegel, A.M., additional, Steinetz, B.G., additional, Sterling, K., additional, Straus, E., additional, Sutter, A., additional, Thurman, G.B., additional, VanderLaan, W.P., additional, Van Obberghen, E., additional, Verma, A.K., additional, Weick, R.F., additional, Weigel, N.L., additional, Weiss, G., additional, Weisz, J., additional, Wentz, A., additional, Wilson, J.D., additional, Winkel, C.A., additional, Woodard, C.J., additional, Yalow, R.S., additional, Yankner, B.A., additional, and Zatz, M.M., additional

Published
1981
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38. Isotopic investigations for the origin of relic from the Matsusaki site, Japan

Author

90335240, 10314296, 00332734, Nakano-Ohta, T, Kubota, T, Ando, A, Fujii, T, Fukutani, S, Nakata, E, Nakano, T, Mahara, Y, 90335240, 10314296, 00332734, Nakano-Ohta, T, Kubota, T, Ando, A, Fujii, T, Fukutani, S, Nakata, E, Nakano, T, and Mahara, Y

Abstract

We measured the environmental radioactivity and isotope ratio, (87)Sr/(86)Sr ratio, (234)U/(238)U, delta(13)C, and (228)Ra/(226)Ra activity ratio, of adhesion that adhered to a wooden tubing vessel obtained from the Matsusaki site, one of the salt-production sites where Moshio is manufactured, in Aichi Prefecture, Japan. The environmental radioactivity and isotope ratio verified that the adhesion originated from the seaweed and/or sea grass.

Published
2009

39. Measurement of the processes e^+e^-→e^+e^- and e^+e^-→γγ at √s=52 GeV

Author

TOPAZ, Collaboration, Adachi, I., Dijkstra, H. B., Fujiwara, N., Higashi, S., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwata, S., Kato, S., Kishida, T., Kuroda, S., Maruyama, A., Maruyama, K., Masuda, H., Matsuda, T., Miyamoto, A., Morimoto, T., Nakamura, K., Nitoh, O., Noguchi, S., Ochiai, F., Ohshima, T., Okuno, H., Okusawa, T., Ozaki, H., Sato, T., Sai, F., Shimonaka, J., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Suwada, T., Takahashi, K., Takahashi, T., Takamure, H., Tanaka, T., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamakawa, O., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoshimura, Y., Yoshioka, M., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., and Takahashi, Tadayuki

Abstract

著者人数：71名, 資料番号: SA1002298000

Published
1988

40. The TOPAZ Time Projection Chamber

Author

DuBois, A., Jared, R. C., Kirsten, F., Salz, P., Matsuda, T., Yamamoto, A., Kamae, Tsuneyoshi, Aihara, H., Enomoto, R., Fujii, H., Fujii, T., Itoh, R., Kusuki, N., Miki, T., Shirahashi, A., Takahashi, Tadayuki, Tanaka, M., Ikeda, Hirokazu, Iwasaki, H., Iwata, S., Nakamura, K., and Yamauchi, M.

Subjects
Physics, Nuclear and High Energy Physics, Wire chamber, Time projection chamber, business.industry, Preamplifier, Amplifier, Laser, Particle detector, law.invention, Optics, law, Measuring instrument, business, Instrumentation, Electronic circuit
Abstract

著者人数：22名, 資料番号: SA1002282000

Published
1986

41. Measurement of αs in e^+e^- Annihilation at √s=53. 3 GeV and 59. 5 GeV

Author

TOPAZ, Collaboration, Adachi, I., Doser, M., Fujiwara, K., Fujiwara, N., Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., Kato, S., Kato, Y., Kayahara, Y., Kishida, T., Koltick, D., Kusuki, N., Levine, I., Maruyama, A., Maruyama, K., Matsuda, T., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Ozaki, H., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., and Takahashi, Tadayuki

Subjects
Quantum chromodynamics, Coupling constant, Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Electron–positron annihilation, media_common.quotation_subject, Hadron, Monte Carlo method, Elementary particle, Asymmetry, Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, media_common
Abstract

著者人数：69名, 資料番号: SA1002295000

Published
1989

42. Charge asymmetry measurement in e^+e^-→μ^+μ^- and τ^+τ^- reactions at √s=55 GeV and 55 GeV

Author

TOPAZ, Collaboration, Adachi, I., Dijkstra, H. B., Fujiwara, N., Higashi, S., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwata, S., Iwasaki, H., Kato, S., Kishida, T., Kuroda, S., Maruyama, A., Maruyama, K., Masuda, H., Matsuda, T., Miyamoto, A., Morimoto, T., Nakamura, K., Nitoh, O., Noguchi, S., Ochiai, F., Ohshima, T., Okuno, H., Okusawa, T., Ozaki, H., Sato, T., Sai, F., Shimonaka, J., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Suwada, T., Takahashi, K., Takahashi, T., Takamure, H., Tanaka, T., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamakawa, O., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoshimura, Y., Yoshioka, M., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., Kusuki, N., and Takahashi, Tadayuki

Abstract

著者人数：71名, 資料番号: SA1002297000

Published
1988

43. A Search for a Fourth-Generation Charge-1/3(b') Quark Using Inclusive Muons in e^+e^- Annihilation at √s=56.5-60.8 GeV

Author

TOPAZ, Collaboration, Adachi, I., Doser, M., Fujiwara, K., Fujiwara, N., Higashi, S., Howell, B., Iida, N., Imanishi, A., Ikeda, H., Ishii, T., Itoh, R., Iwasaki, H., Iwashiro, K., Kato, S., Kato, Y., Kayahara, Y., Kishida, T., Koltick, D., Kusuki, N., Levine, I., Maruyama, A., Maruyama, K., Matsushita, K., Miyamoto, A., Muramatsu, K., Nagai, K., Nagira, T., Nitoh, O., Noguchi, S., Ochiai, F., Okuno, H., Okusawa, T., Onodera, S., Ozaki, H., Sasayama, N., Shimonaka, A., Shimozawa, K., Shirahashi, A., Sugahara, R., Sugiyama, A., Suzuki, S., Takahashi, K., Takahashi, T., Takamure, H., Tauchi, T., Teramoto, Y., Tsukamoto, T., Ukai, K., Uno, S., Watanabe, Y., Yamamoto, A., Yamamoto, S., Yamashita, S., Yamauchi, M., Yoake, Y., Yoshizawa, J., Aihara, H., Enomoto, R., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Hayashii, H., Kajikawa, R., Kamae, T., Kawabata, S., Kichimi, H., Kobayashi, M., and Takahashi, Tadayuki

Abstract

著者人数：70名, 資料番号: SA1002294000

Published
1989

44. Urinary titin reflects the severity of walking ability, muscle strength, and muscle and cardiac damage in patients with Becker muscular dystrophy.

Author

Awano H, Nambu Y, Osawa K, Shirakawa T, Matsumura T, Wakisaka A, Kuru S, Funato M, Takeshima Y, Ishigaki K, Kobayashi M, Sato T, Fujii T, Sugie K, Kimura K, Komaki H, Nakamura A, and Matsuo M

Abstract

Background: Becker muscular dystrophy (BMD) is a dystrophinopathy caused by a pathological variant of the DMD gene. Urinary titin, a degradation product of the giant protein titin present in muscle sarcomeres, has been used as a biomarker to reflect muscle degradation in Duchenne muscular dystrophy, a more severe dystrophinopathy. However, the clinical significance of urinary titin levels in BMD remains unclear. This study aimed to investigate the relationship between urinary titin levels and the clinical data in patients with BMD., Methods: Urine samples were collected from 123 patients with BMD, and urinary titin levels were measured. The association of urinary titin with clinical data, including age, physical measurements, physical activity, blood tests, and cardiopulmonary test results, was examined., Results: A total of 257 urine samples were obtained from patients of 5-79 years of age. The median urinary titin level was 72.6 pmol/mg Cr (range 0.2-4325.0 pmol/mg Cr). No strong correlation was found between urinary titin levels and age, physical measurements, physical function, blood test results, or cardiopulmonary function. However, on comparing clinical data between the age-matched high urinary titin (N = 94) and normal (N = 29) groups, the high urinary titin group had a significantly greater number of non-ambulatory cases (23.9 % vs. 3.6 %), weaker grip strength (16.3 vs. 32.0 kg), and higher serum creatine kinase (1072 vs. 398 U/L) and cardiac troponin I (10.6 vs. 2.5 pg/mL) levels., Conclusion: Urinary titin was identified as a biomarker reflecting walking ability, muscle strength, and skeletal and cardiac damage in patients with BMD., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Published
2024
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45. Incidence and risk factors associated with the development of hypothyroidism after postoperative chemoradiotherapy for head and neck cancer patients with high-risk features: Supplementary analysis of JCOG1008.

Author

Shimizu H, Kodaira T, Kiyota N, Hayashi R, Nishino H, Asada Y, Mitani H, Hirayama Y, Onozawa Y, Nishio N, Hanai N, Ohkoshi A, Hara H, Monden N, Nagaoka M, Minami S, Fujii T, Tanaka K, Homma A, Yoshimoto S, Oridate N, Omori K, Ueda T, Okami K, Uemura H, Shiga K, Nakahira M, Asakage T, Saito Y, Sasaki K, Kitabayashi R, Ishikura S, Nishimura Y, and Tahara M

Subjects
Humans, Male, Female, Middle Aged, Risk Factors, Incidence, Aged, Chemoradiotherapy adverse effects, Adult, Hypothyroidism etiology, Hypothyroidism epidemiology, Head and Neck Neoplasms radiotherapy, Head and Neck Neoplasms therapy
Abstract

Background and Purpose: Hypothyroidism is a recognized late adverse event following radiotherapy for head and neck cancer (HNC). In the JCOG1008 trial, we treated patients with high-risk HNC with postoperative chemoradiotherapy. We aimed to elucidate factors associated with hypothyroidism by analyzing the JCOG1008 data., Materials and Methods: In 2012-2018, 261 patients from 28 institutions were enrolled in JCOG1008. Thyroid function tests were conducted to assess hypothyroidism, including free thyroxine (FT4) and thyroid-stimulating hormone assays. Hypothyroidism was defined as Grade 2 or higher in CTCAE v4.0. Various clinical and dosimetric parameters were analyzed. In radiotherapy, there were no dose constraints for the thyroid. Multivariable analysis was conducted on these variables to identify predictive factors for hypothyroidism., Results: The analysis included 162 patients (57 with 3D-CRT and 105 with IMRT), with a median follow-up of 4.7 years (0.3-9.3 years). Among these, 27 (16.7 %) developed hypothyroidism within 2 years after radiotherapy. In a multivariable analysis, the weekly cisplatin [OR=7.700 (CI: 1.632-36.343, p = 0.010)] and baseline FT4 [OR=0.009 (CI: <0.001-0.313, p = 0.010)] were significantly associated with hypothyroidism in the IMRT group. Regarding dosimetric characteristics, V 60Gy [OR=1.069 (CI: 0.999-1.143, p = 0.054)] was potentially associated with the development of hypothyroidism., Conclusion: The study revealed that the incidence of hypothyroidism within 2 years after postoperative chemoradiotherapy for high-risk HNC was 16.7 % based on analytical results from prospective clinical trials., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Published
2024
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46. Machine learning approaches to evaluate heterogeneous treatment effects in randomized controlled trials: a scoping review.

Author

Inoue K, Adomi M, Efthimiou O, Komura T, Omae K, Onishi A, Tsutsumi Y, Fujii T, Kondo N, and Furukawa TA

Abstract

Background and Objectives: Estimating heterogeneous treatment effects (HTEs) in randomized controlled trials (RCTs) has received substantial attention recently. This has led to the development of several statistical and machine learning (ML) algorithms to assess HTEs through identifying individualized treatment effects. However, a comprehensive review of these algorithms is lacking. We thus aimed to catalog and outline currently available statistical and ML methods for identifying HTEs via effect modeling using clinical RCT data and summarize how they have been applied in practice., Study Design and Setting: We performed a scoping review using prespecified search terms in MEDLINE and Embase, aiming to identify studies that assessed HTEs using advanced statistical and ML methods in RCT data published from 2010 to 2022., Results: Among a total of 32 studies identified in the review, 17 studies applied existing algorithms to RCT data, and 15 extended existing algorithms or proposed new algorithms. Applied algorithms included penalized regression, causal forest, Bayesian causal forest, and other metalearner frameworks. Of these methods, causal forest was the most frequently used (7 studies) followed by Bayesian causal forest (4 studies). Most applications were in cardiology (6 studies), followed by psychiatry (4 studies). We provide example R codes in simulated data to illustrate how to implement these algorithms., Conclusion: This review identified and outlined various algorithms currently used to identify HTEs and individualized treatment effects in RCT data. Given the increasing availability of new algorithms, analysts should carefully select them after examining model performance and considering how the models will be used in practice., Competing Interests: Declaration of competing interest All authors have completed the ICMJE uniform disclosure format (available on request from the corresponding author). M.A. received financial supports from Kyoto University related to this work. There are no competing interests for any other author., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)

Published
2024
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47. Amyand's Hernia diagnosed preoperatively via a CT scan: A case report.

Author

Kawata A, Hasegawa M, Morishita S, Fujii T, Hagiwara O, Joki N, Takahashi K, Yokouchi Y, and Gomi T

Abstract

Amyand's hernia is a rare type of inguinal hernia characterized by the presence of the vermiform appendix within the hernia sac. It was named after Claudius Amyand who performed the world's first successful appendectomy on an 11-year-old boy with a right inguinal hernia in 1735 and discovered a herniated appendix during surgery. This condition warrants urgent surgical treatment, with the type of surgical intervention depending on the appendix's condition. However, the nonspecific clinical presentation often complicates the preoperative diagnosis, emphasizing the critical role of imaging in surgical planning. Herein, we present the case of a 74-year-old male who presented with fever, inguinal swelling, and discomfort. Clinical suspicion of inguinal and scrotal inflammation prompted us to perform a prompt CT scan. This radiological evaluation led to a preoperative diagnosis of a Type 3 Amyand's hernia. This case highlights the significance of CT scans in the accurate and timely diagnosis of Amyand's hernia. Distinguishing between various types of Amyand's hernia is pivotal as it profoundly influences surgical decision-making and postoperative outcomes. By sharing this case, we contribute to current knowledge about Amyand's hernia, increase clinical awareness of the condition, and emphasize the crucial role of imaging in its management., (© 2024 The Authors. Published by Elsevier Inc. on behalf of University of Washington.)

Published
2024
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48. Impact of wound management strategies after revascularization for chronic limb-threatening ischemia.

Author

Shintani T, Obara H, Matsubara K, Hayashi M, Kita H, Ono S, Watada S, Kikuchi N, Sekimoto Y, Torizaki Y, Asami A, Fujii T, Hayashi K, Harada H, Fujimura N, Hosokawa K, Nakatani E, and Kitagawa Y

Subjects
Humans, Chronic Limb-Threatening Ischemia, Retrospective Studies, Treatment Outcome, Risk Factors, Ischemia diagnostic imaging, Ischemia surgery, Limb Salvage adverse effects, Chronic Disease, Osteomyelitis, Peripheral Arterial Disease, Endovascular Procedures adverse effects
Abstract

Objective: There is no established consensus or guidelines for wound management after revascularization for patients with chronic limb-threatening ischemia (CLTI) without severe infection. This study is designed to evaluate the clinical effect of the wound management strategy on toe wounds after revascularization for CLTI., Methods: This retrospective cohort study was performed at eight institutions affiliated with Keio University School of Medicine in Japan and included 261 patients who underwent revascularization for CLTI between April 2019 and July 2021. We identified 132 patients with toe wounds from the database who had restored in-line blood flow to the foot. Patients were divided into two groups by the timing of toe resection after revascularization, which dictated the wound management policy. Group A (62 patients) underwent early toe amputation for suspected osteomyelitis, whereas group B (70 patients) underwent watchful waiting. The primary outcome was wound healing after revascularization; the secondary outcome was major amputation. We compared outcomes between groups A and B after propensity score matching., Results: Using propensity score matching, each patient in group A (33 patients) was matched with a patient in group B (33 patients). Wound healing in matched group A was significantly better than that in matched group B (respectively: 1-year wound healing rate: 90.0% vs 68.2%, P < .001; median wound healing time: 65 days vs 258 days, P < .01). Although five major amputations were necessary in matched group B, none were required in matched group A (P = .05). The high rate of major amputations in group B was attributed to the sudden exacerbation of infection. Limb salvage rate in matched group A exceeded matched group B (100.0% vs 90.5%: 1-year limb salvage rate, P = .02)., Conclusions: Early toe amputation for highly suspected osteomyelitis in patients with CLTI with toe wounds may expedite wound healing compared with watchful waiting, potentially avoiding unnecessary major amputation. Considering the wound management strategy is crucial when evaluating wound healing outcomes in patients with CLTI with revascularization., Competing Interests: Disclosures N.F. has served as a consultant for Japan Lifeline and Cook Medical. S.O. served as a consultant for Medico’s Hirata. H.O. received educational grant from Cardinal Health, Japan Blood Products Organization, JMS, Taiho Pharmaceutical, Teijin Pharma Limited, MSD, Kaken Pharmaceutical, Sanofi, Dainippon Sumitomo Pharma, Mitsubishi Tanabe Pharma Corporation, Nihon Pharmaceutical, Japan Lifeline, Limfix, Medtronic Japan, Otsuka Pharmaceutical Factory, Daiichi Sankyo Company, Johnson & Johnson, Otsuka Pharmaceutical, Kowa, and W. L. Gore & Associates. Y.K. received lecture fees from Chugai Pharmaceutical, Taiho Pharmaceutical, Asahi Kasei Pharma Corporation, Otsuka Pharmaceutical Factory, Ono Pharmaceutical, Shionogi, AstraZeneca, Ethicon, Bristol-Myers Squibb, Olympus Corporation, Cardinal Health, MSD, Smith & Nephew, Kaken Pharmaceutical, Aska Pharmaceutical, Miyarisan Pharmaceutical, Toray Industries, Daiichi Sankyo Company, Chugai Foundation for Innovative Drug Discovery Science, Nippon Kayaku, EA Pharma, Intuitive Surgical, Takeda Pharmaceutical Company Limited, Sysmex Corporation, and Tsumura; and received educational grant from Chugai Pharmaceutical, Taiho Pharmaceutical, Yakult Honsha, Asahi Kasei Pharma, Otsuka Pharmaceutical, Ono Pharmaceutical, Tsumura, Kaken Pharmaceutical, Dainippon Sumitomo Pharma, EA Pharma, Eisai, Otsuka Pharmaceutical Factory, Kyowa Kirin, Takeda Pharmaceutical, Teijin Pharma, Nippon Covidien, Cardinal Health, and Kowa. All other authors declare that they have no relevant conflicts of interest., (Copyright © 2023 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.)

Published
2024
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49. Unidirectional titanium fiber-reinforced porous titanium with mechanical properties suitable for load-bearing biomaterials.

Author

Kobayashi N, Fujii T, and Shimamura Y

Subjects
Porosity, Weight-Bearing, Materials Testing, Elastic Modulus, Alloys, Biocompatible Materials, Titanium
Abstract

Biomaterials for load-bearing implants are expected to exhibit mechanical biocompatibility of low stiffness and high strength for avoiding stress shielding and failure of the implants in vivo, respectively. This study aimed to develop porous titanium (Ti) reinforced with long Ti fibers so that the porous Ti exhibited low Young's modulus and high tensile strength. The unidirectional Ti fiber-reinforced porous Ti with porosities (p) of 40%-58% and volume percentages of Ti fiber (V f ) of 3%-33% has been successfully fabricated via the space holder technique. Mechanical testing revealed that its strength was improved, compared with uniform porous Ti because Ti fibers prevent microscopic damage progress. The porous Ti with p = 40% and V f  = 33% exhibited the strength of 233 MPa and Young's modulus of 26 GPa, which were higher than and comparable to those of natural bones, respectively. Hence, the Ti fiber-reinforced porous Ti exhibited ideal mechanical properties for implant applications., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:Tomoyuki Fujii reports financial support was provided by Hamamatsu Foundation for the Promotion of Electronic Science. Tomoyuki Fujii reports a relationship with Hamamatsu Foundation for the Promotion of Electronic Science that includes: funding grants., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Published
2024
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50. Risk factors for early reoperation in patients after posterior lumbar interbody fusion surgery. A propensity-matched cohort analysis.

Author

Hikata T, Takahashi Y, Ishihara S, Shinozaki Y, Nimoniya K, Konomi T, Fujii T, Funao H, Yagi M, Hosogane N, Ishii K, Nakamura M, Matsumoto M, and Watanabe K

Subjects
Male, Humans, Female, Middle Aged, Aged, Reoperation methods, Cohort Studies, Risk Factors, Lumbar Vertebrae surgery, Retrospective Studies, Treatment Outcome, Spinal Fusion adverse effects, Spinal Fusion methods, Diabetes Mellitus surgery
Abstract

Background: Reoperation is usually associated with poor results and increased morbidity and hospital costs. However, the rates, causes, and risk factors for reoperation in patients undergoing lumbar spinal fusion surgery remain controversial. This study aimed to identify the risk factors for early reoperation after posterior lumbar interbody fusion surgery and to compare the clinical outcomes between patients who underwent reoperation and those who did not., Methods: We investigated a multicenter medical record database of 1263 patients who underwent posterior lumbar interbody fusion surgery between 2012 and 2015. A total of 72 (5.7%) reoperations within two years after surgery were identified and were propensity-matched for age, sex, number of fusion segments, and surgeon's experience., Results: We analyzed a total of 114 patients (57 who underwent reoperation (R group) and 57 who did not (C group)). The mean age was 62.6 ± 13.4 years, with 78 men and 36 women. The mean number of fused segments was 1.2 ± 0.5. Surgical site infection was the most common cause of reoperation. There were significant differences in the incidence of diabetes mellitus (p = 0.024), preoperative ambulation status (p = 0.046), and ASA grade (p < 0.001) between the C and R groups. The recovery rate of the Japanese Orthopaedic Association score was significantly lower in the R group compared to the C group (R: 50.5 ± 28.8%, C: 63.9 ± 33.7%, p = 0.024). There were significant differences in the bone fusion rate (R: 63.2%, C: 96.5%, p < 0.001) and incidence of screw loosening (R: 31.6%; C: 10.5%; p = 0.006)., Conclusion: Diabetes mellitus, preoperative ambulation status, and ASA grade were significant risk factors for early reoperation following posterior lumbar interbody fusion surgery. The patients who underwent early reoperation had worse clinical outcomes than those who did not., Competing Interests: Declaration of competing interest None., (Copyright © 2022 The Japanese Orthopaedic Association. Published by Elsevier B.V. All rights reserved.)

Published
2024
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