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1. A Case of Type I Food Allergy Induced by Monosodium Glutamate

Author

Osada R, Oshikata C, Kurihara Y, Terada K, Kodama Y, Yamashita Y, Nakadegawa R, Masumitsu H, Motobayashi Y, Takayasu H, Masumoto N, Manabe S, Zhu Y, Tanaka R, Kaneko T, Sasaki A, and Tsurikisawa N

Subjects
food additive, mast cell, monosodium glutamate, food allergy, Immunologic diseases. Allergy, RC581-607
Abstract

Reeko Osada,1 Chiyako Oshikata,1– 3 Yuichi Kurihara,4 Kosuke Terada,1 Yuka Kodama,1 Yuga Yamashita,1 Ryo Nakadegawa,1 Hinako Masumitsu,1 Yuto Motobayashi,1 Hirokazu Takayasu,1 Nami Masumoto,1,3 Saki Manabe,1 Yingyao Zhu,4 Ryo Tanaka,4 Takeshi Kaneko,3 Aya Sasaki,5 Naomi Tsurikisawa1– 3 1Department of Respirology, National Hospital Organization Yokohama Medical Center, Yokohama, Japan; 2Department of Allergy and Respirology, Hiratsuka City Hospital, Hiratsuka, Japan; 3Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan; 4Department of Dermatology, Hiratsuka City Hospital, Hiratsuka, Japan; 5Department of Clinical Laboratory, Tokyo Dental College Ichikawa General Hospital, Ichikawa, JapanCorrespondence: Naomi Tsurikisawa, Department of Respirology, National Hospital Organization Yokohama Medical Center, 3-60-2 Harajuku, Totsuka-ku, Yokohama, 245-8575, Japan, Tel +81-45-851-2621, Fax +81-45-851-3902, Email User831328@aol.comAbstract: Monosodium glutamate (MSG), a salt form of a non-essential amino acid, is widely used as a food additive, particularly in Asian cuisines, due to its unique flavor-enhancing qualities. Type I allergic reactions to MSG have not previously been reported. Our patient, a 21-year-old woman, was 14 years old when she first noticed swelling of her tongue (but no oral itching, diarrhea, or abdominal pain) after eating various snack foods. Current skin prick testing elicited a weak positive reaction to MSG. We then performed an oral challenge test during which our patient ingested potato snacks. Subsequent histology showed telangiectasia of the buccal mucosa, interstitial edema in the subepithelial submucosa, and mast cell infiltration. Oral mucosal challenge tests using sodium glutamate confirmed oral swelling in this patient. This report is the first to confirm a case of type 1 allergy to MSG by combining pathology findings with the results of challenge testing.Keywords: food additive, mast cell, monosodium glutamate, food allergy

Published
2024

2. A Case of Hepatitis E Virus Infection: One of Differential Diagnosis of Liver Injury in Patients Undergoing Peritoneal Dialysis

Author

Yan T, Sakai Y, Terada K, Okano S, Kawasaki S, Kashiwagi T, and Iwabu M

Subjects
peritoneal dialysis, hepatitis e virus, hev infection, liver injury, Medicine (General), R5-920
Abstract

Tomohiro Yan, Yukinao Sakai, Kohsuke Terada, Sho Okano, Sayuri Kawasaki, Tetsuya Kashiwagi, Masato Iwabu Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, JapanCorrespondence: Yukinao Sakai, Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan, Tel +81-03-3822-2131, Fax +81-3-3822-4865, Email y-sakai@nms.ac.jpBackground: There are numerous causes of liver function disorder in patients undergoing peritoneal dialysis (PD). Infection with the Hepatitis E virus (HEV) is a rare cause of liver injury, and the behavior of HEV in patients with PD is unclear. Since patients undergoing dialysis are frequently polypharmatic, liver injury caused by HEV infection may be misdiagnosed as drug-induced liver injury.Case Presentation: A 61-year-old woman with PD developed abrupt elevation of blood transaminase levels on a routine outpatient session. Since the patient has been receiving tolvaptan as the only new medication, we suspected tolvaptan induced liver injury. In further investigating the cause of liver injury, the blood screening test was found to be positive for HEV-IgA. The patient was diagnosed with HEV infection, and had a self-limited course.Conclusion: When encountered with patients developing liver injury during PD, HEV infection should be included in the differential diagnosis.Keywords: peritoneal dialysis, hepatitis E virus, HEV infection, liver injury

Published
2022

3. Linguistic Validation of the Japanese Version of the Multidimensional Dyspnea Profile and Relation to Physical Activity in Patients with COPD

Author

Kanezaki M, Tamaki A, Terada K, and Ebihara S

Subjects
dyspnea, chronic obstructive pulmonary disease, multidimension, physical activity, Diseases of the respiratory system, RC705-779
Abstract

Masashi Kanezaki,1 Akira Tamaki,2 Kunihiko Terada,3 Satoru Ebihara4 1Department of Physical Therapy, School of Health Sciences, Tokyo International University, Kawagoe, Saitama, 350-1197, Japan; 2Department of Physical Therapy, School of Rehabilitation, Hyogo University of Health Sciences, Kobe, Hyogo, Japan; 3Terada Clinic, Respiratory Medicine and General Practice, Himeji, Hyogo, Japan; 4Department of Rehabilitation Medicine, Graduate School of Medicine, Toho University, Tokyo, JapanCorrespondence: Masashi KanezakiDepartment of Physical Therapy, School of Health Sciences, Tokyo International University, 1-13-1 Matobakita, Kawagoe, Saitama, 350-1197, JapanTel +81-49-232-1111Fax +81-49-232-1119Email mkaneza@tiu.ac.jpPurpose: This study aimed to develop a linguistically validated Japanese translation of the multidimensional dyspnea profile (MDP) and assess whether worsening of dyspnea’s sensory and affective domains during exercise had detrimental effects on physical activity in stable outpatients with chronic obstructive pulmonary disease (COPD).Materials and Methods: The Japanese version of the MDP was prepared in collaboration with Mapi Research Trust (Lyon, France) after the approval of the developer. Physical activity was assessed using a 3-axis accelerometer. Dyspnea upon exertion was investigated using a 3-minute step test.Results: The Japanese version of the MDP was obtained and validated linguistically. Air-hunger was significantly associated with total calories from walking (r = − 0.47, p < 0.05), while anxiety and depression were significantly correlated with both the amount and intensity of physical activity (r = − 0.49, p < 0.05, and r = − 0.46, p < 0.05, respectively).Conclusion: The Japanese version of the MDP was suggested to reflect both pulmonary functions, ventilatory response during exercise, and intensity and amount of physical activity in patients with COPD.Keywords: dyspnea, chronic obstructive pulmonary disease, multidimension, physical activity

Published
2022

4. Lower Limb Ulcer Associated with Peritonitis in Patients Undergoing Peritoneal Dialysis

Author

Terada K, Aratani S, Hirama A, Kashiwagi T, and Sakai Y

Subjects
peritoneal dialysis, peritonitis, lower limb ulcer., Diseases of the genitourinary system. Urology, RC870-923
Abstract

Kohsuke Terada, Sae Aratani, Akio Hirama, Tetsuya Kashiwagi, Yukinao Sakai Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, JapanCorrespondence: Yukinao SakaiDepartment of Nephrology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, 113-8603, JapanTel +81-3-3822-2131 ext. 6496Fax +81-3-3822-4865Email y-sakai@nms.ac.jpPurpose: Peritoneal dialysis (PD)-related peritonitis and lower limb ulcer are the important complications in patients undergoing PD. Although the association between lower limb ulcer and peritonitis in patients undergoing PD is unclear, based on our clinical experience and the clinical importance of the complications in patients undergoing PD, we hypothesized that lower limb ulcer is associated with peritonitis in patients on PD.Patients and Methods: In this single center, retrospective cohort study, we studied 87 patients who started undergoing PD at our hospital from April 2015 to March 2020. We compared these 8 patients with lower limb ulcer with the other 79 patients without lower limb ulcer. We compared between the patients in the objection period of this study about peritonitis using Log rank test, and used the unpaired t-test and Fisher’s exact test to compare the clinical factors between the two groups. Moreover, we used univariate and multivariate logistic regression analyses to study the association of PD-related peritonitis with the clinical factors.Results: The period developed first peritonitis of the patients on PD with lower limb ulcer was significant shorter than those without lower limb ulcer in Log rank test (P = 0.011). The Fisher’s exact test and unpaired t-test showed that the difference in the prevalence of PD-related peritonitis (P = 0.009), peritonitis/patient years (P = 0.036), the BMI (P = 0.007) and icodextrin (P = 0.001) were significant. Lower limb ulcer had significant associations with peritonitis in patients on PD in both univariate [odds ratio (OR) 8.461, 95% confidence interval (CI) 1.854– 45.60, P = 0.006] and multivariate [OR 7.169, 95% CI 1.519– 39.480, P = 0.013] logistic regression analysis.Conclusion: In conclusion, lower limb ulcer may be associated with peritonitis in patients undergoing PD. Further large-scale, prospective studies are required to confirm these results.Keywords: peritoneal dialysis, peritonitis, lower limb ulcer

Published
2021

5. First joint oscillation analysis of Super-Kamiokande atmospheric and T2K accelerator neutrino data

Author

Super-Kamiokande, collaborations, T2K, Abe, S., Abe, K., Akhlaq, N., Akutsu, R., Alarakia-Charles, H., Ali, A., Hakim, Y. I. Alj, Monsalve, S. Alonso, Amanai, S., Andreopoulos, C., Anthony, L. H. V., Antonova, M., Aoki, S., Apte, K. A., Arai, T., Arihara, T., Arimoto, S., Asada, Y., Asaka, R., Ashida, Y., Atkin, E. T., Babu, N., Barbi, M., Barker, G. J., Barr, G., Barrow, D., Bates, P., Batkiewicz-Kwasniak, M., Beauchêne, A., Berardi, V., Berns, L., Bhadra, S., Bhuiyan, N., Bian, J., Blanchet, A., Blondel, A., Bodur, B., Bolognesi, S., Bordoni, S., Boyd, S. B., Bravar, A., Bronner, C., Bubak, A., Avanzini, M. Buizza, Burton, G. T., Caballero, J. A., Calabria, N. F., Cao, S., Carabadjac, D., Carter, A. J., Cartwright, S. L., Casado, M. P., Catanesi, M. G., Cervera, A., Chakrani, J., Chalumeau, A., Chen, S., Cherdack, D., Choi, K., Chong, P. S., Chvirova, A., Cicerchia, M., Coleman, J., Collazuol, G., Cook, L., Cormier, F., Cudd, A., Dalmazzone, C., Daret, T., Dasgupta, P., Davis, C., Davydov, Yu. I., De Roeck, A., De Rosa, G., Dealtry, T., Delogu, C. C., Densham, C., Dergacheva, A., Dharmapal, R., Di Lodovico, F., Lopez, G. Diaz, Dolan, S., Douqa, D., Doyle, T. A., Drapier, O., Duffy, K. E., Dumarchez, J., Dunne, P., Dygnarowicz, K., D'ago, D., Edwards, R., Eguchi, A., Elias, J., Emery-Schrenk, S., Erofeev, G., Ershova, A., Eurin, G., Fannon, J. E. P., Fedorova, D., Fedotov, S., Feltre, M., Feng, J., Feng, L., Ferlewicz, D., Fernandez, P., Finch, A. J., Aguirre, G. A. Fiorentini, Fiorillo, G., Fitton, M. D., Patiño, J. M. Franco, Friend, M., Fujii, Y., Fujisawa, C., Fujita, S., Fukuda, Y., Furui, Y., Gao, J., Gaur, R., Giampaolo, A., Giannessi, L., Giganti, C., Glagolev, V., Goldsack, A., Gonin, M., Rosa, J. González, Goodman, E. A. G., Gorin, A., Gorshanov, K., Gousy-Leblanc, V., Grassi, M., Griskevich, N. J., Guigue, M., Hadley, D., Haigh, J. T., Han, S., Harada, M., Harris, D. A., Hartz, M., Hasegawa, T., Hassani, S., Hastings, N. C., Hayato, Y., Heitkamp, I., Henaff, D., Hill, J., Hino, Y., Hiraide, K., Hogan, M., Holeczek, J., Holin, A., Holvey, T., Van, N. T. Hong, Honjo, T., Horiuchi, S., Hosokawa, K., Hu, Z., Hu, J., Iacob, F., Ichikawa, A. K., Ieki, K., Ikeda, M., Iovine, N., Ishida, T., Ishino, H., Ishitsuka, M., Ishizuka, T., Ito, H., Itow, Y., Izmaylov, A., Izumiyama, S., Jakkapu, M., Jamieson, B., Jang, M. C., Jang, J. S., Jenkins, S. J., Jesús-Valls, C., Ji, J. Y., Jia, M., Jiang, J., Jonsson, P., Joshi, S., Jung, C. K., Jung, S., Kabirnezhad, M., Kaboth, A. C., Kajita, T., Kakuno, H., Kameda, J., Kanemura, Y., Kaneshima, R., Karpova, S., Kasetti, S. P., Kashiwagi, Y., Kasturi, V. S., Kataoka, Y., Katori, T., Kawamura, Y., Kawaue, M., Kearns, E., Khabibullin, M., Khotjantsev, A., Kikawa, T., Kim, S. B., King, S., Kiseeva, V., Kisiel, J., Kneale, L., Kobayashi, H., Kobayashi, T., Kobayashi, M., Koch, L., Kodama, S., Kolupanova, M., Konaka, A., Kormos, L. L., Koshio, Y., Koto, T., Kowalik, K., Kudenko, Y., Kudo, Y., Kuribayashi, S., Kurjata, R., Kurochka, V., Kutter, T., Kuze, M., Kwon, E., La Commara, M., Labarga, L., Lachat, M., Lachner, K., Lagoda, J., Lakshmi, S. M., LamersJames, M., Langella, A., Laporte, J. -F., Last, D., Latham, N., Laveder, M., Lavitola, L., Lawe, M., Learned, J. G., Lee, Y., Lee, S. H., Silverio, D. Leon, Levorato, S., Lewis, S., Li, X., Li, W., Lin, C., Litchfield, R. P., Liu, S. L., Liu, Y. M., Long, K. R., Longhin, A., Moreno, A. Lopez, Lu, X., Ludovici, L., Lux, T., Machado, L. N., Maekawa, Y., Magaletti, L., Mahn, K., Mahtani, K. K., Malek, M., Mandal, M., Manly, S., Marino, A. D., Martens, K., Marti, Ll., Martin, D. G. R., Martin, J. F., Martin, D., Martini, M., Maruyama, T., Matsubara, T., Matsumoto, R., Mattiazzi, M., Matveev, V., Mauger, C., Mavrokoridis, K., Mazzucato, E., McCauley, N., McElwee, J. M., McFarland, K. S., McGrew, C., McKean, J., Mefodiev, A., Megias, G. D., Mehta, P., Mellet, L., Menjo, H., Metelko, C., Mezzetto, M., Migenda, J., Mijakowski, P., Miki, S., Miller, E., Minamino, A., Mine, S., Mineev, O., Mirabito, J., Miura, M., Bueno, L. Molina, Moon, D. H., Mori, M., Moriyama, S., Morrison, P., Muñoz, A., Mueller, Th. A., Munford, D., Munteanu, L., Nagai, Y., Nagai, K., Nakadaira, T., Nakagiri, K., Nakahata, M., Nakajima, Y., Nakamura, A., Nakamura, K., Nakamura, K. D., Nakamura, T., Nakanishi, F., Nakano, Y., Nakaya, T., Nakayama, S., Nakayoshi, K., Naseby, C. E. R., Ngoc, T. V., Nguyen, V. Q., Nguyen, D. T., Nicholson, M., Niewczas, K., Ninomiya, K., Nishijima, K., Nishimori, S., Nishimura, Y., Noguchi, Y., Nosek, T., Nova, F., Novella, P., Nugent, J. C., Odagawa, T., Okazaki, R., Okazawa, H., Okinaga, W., Okumura, K., Okusawa, T., Ommura, Y., Onda, N., Ospina, N., Osu, L., Oyama, Y., O'Flaherty, M., O'Keeffe, H. M., O'Sullivan, L., Périssé, L., Paganini, P., Palladino, V., Paolone, V., Pari, M., Park, R. G., Parlone, J., Pasternak, J., Payne, D., Penn, G. C., de Perio, P., Pershey, D., Pfaff, M., Pickering, L., Pintaudi, G., Pistillo, C., Pointon, B. W., Popov, B., Yrey, A. Portocarrero, Porwit, K., Posiadala-Zezula, M., Prabhu, Y. S., Prasad, H., Pronost, G., Prouse, N. W., Pupilli, F., Quilain, B., Quyen, P. T., Raaf, J. L., Radermacher, T., Radicioni, E., Radics, B., Ramirez, M. A., Ramsden, R. M., Ratoff, P. N., Reh, M., Riccio, C., Richards, B., Rogly, R., Rondio, E., Roth, S., Roy, N., Rubbia, A., Russo, L., Rychter, A., Saenz, W., Sakai, S., Sakashita, K., Samani, S., Santos, A. D., Sato, Y., Sato, K., Schefke, T., Schloesser, C. M., Scholberg, K., Scott, M., Seiya, Y., Sekiguchi, T., Sekiya, H., Seo, J. W., Sgalaberna, D., Shaikhiev, A., Shi, W., Shiba, H., Shibayama, R., Shigeta, N., Shima, S., Shimamura, R., Shimizu, K., Shinoki, M., Shiozawa, M., Shiraishi, Y., Shvartsman, A., Skrobova, N., Skwarczynski, K., Smy, M. B., Smyczek, D., Sobczyk, J. T., Sobel, H. W., Soler, F. J. P., Sonoda, Y., Speers, A. J., Spina, R., Stroke, Y., Suslov, I. A., Suvorov, S., Suzuki, S., Suzuki, A., Suzuki, S. Y., Suzuki, Y., Sánchez, F., Tada, T., Tada, M., Tairafune, S., Takagi, Y., Takeda, A., Takemoto, Y., Takeuchi, Y., Takhistov, V., Takifuji, K., Tanaka, H., Tanaka, H. K., Tanigawa, H., Taniuchi, N., Tano, T., Tarrant, A., Tashiro, T., Teklu, A., Terada, K., Tereshchenko, V. V., Thamm, N., Thiesse, M. D., Thompson, L. F., Toki, W., Tomiya, T., Touramanis, C., Tsui, K. M., Tsukamoto, T., Tzanov, M., Uchida, Y., Vagins, M. R., Vargas, D., Varghese, M., Vasseur, G., Villa, E., Vinning, W. G. S., Virginet, U., Vladisavljevic, T., Wachala, T., Wakabayashi, D., Wallace, H. T., Walsh, J. G., Walter, C. W., Wan, L., Wang, X., Wang, Y., Wark, D., Wascko, M. O., Watanabe, E., Weber, A., Wendell, R. A., Wester, T., Wilking, M. J., Wilkinson, C., Wilson, S. T., Wilson, J. R., Wood, K., Wret, C., Wu, Y., Xia, J., Xie, Z., Xu, B. D., Xu, Y. -H., Yamamoto, K., Yamamoto, T., Yamauchi, K., Yanagisawa, C., Yang, G., Yang, B. S., Yang, J. Y., Yankelevich, A., Yano, T., Yasutome, K., Yershov, N., Yevarouskaya, U., Yokoyama, M., Yoo, J., Yoshida, T., Yoshida, S., Yoshimoto, Y., Yoshimura, N., Yoshioka, Y., Yu, M., Yu, I., Zaki, R., Zaldivar, B., Zalewska, A., Zalipska, J., Zaremba, K., Zarnecki, G., Zhang, J., Zhang, A. Q., Zhang, B., Zhao, X. Y., Zhong, H., Zhu, T., Ziembicki, M., Zimmerman, E. D., Zito, M., and Zsoldos, S.

Subjects
High Energy Physics - Experiment
Abstract

The Super-Kamiokande and T2K collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. It uses a common interaction model for events overlapping in neutrino energy and correlated detector systematic uncertainties between the two datasets, which are found to be compatible. Using 3244.4 days of atmospheric data and a beam exposure of $19.7(16.3) \times 10^{20}$ protons on target in (anti)neutrino mode, the analysis finds a 1.9$\sigma$ exclusion of CP-conservation (defined as $J_{CP}=0$) and a preference for the normal mass ordering., Comment: 10 pages, 3 figures

Published
2024

6. Low-Density Lipoprotein Apheresis in Patients with Acute Kidney Injury Due to Minimal Change Disease Requiring Acute Renal Replacement Therapy

Author

Terada K, Mugishima K, Kawasaki S, Itagaki F, Yamada T, and Sakai Y

Subjects
low-density lipoprotein apheresis, minimal change disease, nephrotic syndrome, acute kidney injury, acute renal replacement therapy, Diseases of the genitourinary system. Urology, RC870-923
Abstract

Kohsuke Terada, Koji Mugishima, Sayuri Kawasaki, Fumiaki Itagaki, Takehisa Yamada, Yukinao Sakai Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, JapanCorrespondence: Yukinao SakaiDepartment of Nephrology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo 113-8603, JapanTel +81-3-3822-2131 Ext. 6496Fax +81-3-3822-4865Email y-sakai@nms.ac.jpAbstract: Low-density lipoprotein apheresis (LDL-A) has been developed as a therapy for familial hypercholesterolemia, but LDL-A has also been used as a general treatment for drug-resistant nephrotic syndrome (NS) due to focal segmental glomerulosclerosis (FSGS). The patients with NS due to minimal change disease (MCD) are often difficult to control effective circulating plasma volume, causes acute kidney injury (AKI), and when diuretics are not effective and the respiratory condition of patients worsens, patients require acute renal replacement therapy (ARRT). The effectiveness of LDL-A is not only reduction of serum low-density lipoprotein but also various other benefits. LDL-A might have improved renal hemodynamics by reducing vasoconstrictive eicosanoids and contributed to the therapeutic effect of antiproteinuric drugs such as corticosteroids. We treated a 49-year-old Japanese woman and a 71-year-old Japanese man with AKI caused by NS due to MCD, who required ARRT. Although these patients received ARRT and corticosteroids, their AKI and MCD did not improve sufficiently. We initiated LDL-A treatment for these patients as an additional treatment modality, because their total serum cholesterol levels were high at the time of admission. After the additional LDL-A treatment, both patients were able to discontinue ARRT, because NS and AKI in both patients were improved sufficiently. It is possible that early additional LDL-A is effective for patients with AKI and NS due to MCD who require ARRT, and may help patients discontinue ARRT because of the effect of LDL-A such as improving hypercoagulability and renal hemodynamics and contributing to the therapeutic effect of corticosteroids.Keywords: low-density lipoprotein apheresis, minimal change disease, nephrotic syndrome, acute kidney injury, acute renal replacement therapy

Published
2020

7. Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector

Author

Kitagawa, H., Tada, T., Abe, K., Bronner, C., Hayato, Y., Hiraide, K., Hosokawa, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Jang, M. C., Lee, S. H., Moon, D. H., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Beauchêne, A., Drapier, O., Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Rogly, R., Nakamura, T., Jang, J. S., Machado, L. N., Learned, J. G., Choi, K., Iovine, N., Cao, S., Anthony, L. H. V., Martin, D., Prouse, N. W., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Calabria, N. F., Catanesi, M. G., Radicioni, E., Langella, A., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Périssé, L., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Okazaki, R., Akutsu, R., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Bhuiyan, N., Burton, G. T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Ramsden, R. M., Xie, Z., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takagi, Y., Takeuchi, Y., Zhong, H., Feng, J., Feng, L., Hu, J. R., Hu, Z., Kawaue, M., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., McCauley, N., Mehta, P., Tarant, A., Wilking, M. J., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Yoshioka, Y., Lagoda, J., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Shi, W., Yanagisawa, C., Harada, M., Hino, Y., Ishino, H., Koshio, Y., Nakanishi, F., Sakai, S., Tano, T., Ishizuka, T., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Jung, S., Yang, B. S., Yang, J. Y., Yoo, J., Fannon, J. E. P., Kneale, L., Malek, M., McElwee, J. M., Thiesse, M. D., Thompson, L. F., Wilson, S. T., Okazawa, H., Lakshmi, S. M., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Eguchi, A., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Watanabe, E., Yokoyama, M., de Perio, P., Fujita, S., Jesús-Valls, C., Martens, K., Tsui, K. M., Vagins, M. R., Xia, J., Izumiyama, S., Kuze, M., Matsumoto, R., Terada, K., Ishitsuka, M., Ito, H., Kinoshita, T., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Yoshida, T., Martin, J. F., Tanaka, H. A., Towstego, T., Gaur, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Edwards, R., Hadley, D., Nicholson, M., O'Flaherty, M., Richards, B., Ali, A., Jamieson, B., Amanai, S., Marti, Ll., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., and Wada, K.

Subjects
High Energy Physics - Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract

We present the results of the charge ratio ($R$) and polarization ($P^{\mu}_{0}$) measurements using the decay electron events collected from 2008 September to 2022 June by the Super-Kamiokande detector. Because of its underground location and long operation, we performed high precision measurements by accumulating cosmic-ray muons. We measured the muon charge ratio to be $R=1.32 \pm 0.02$ $(\mathrm{stat.}{+}\mathrm{syst.})$ at $E_{\mu}\cos \theta_{\mathrm{Zenith}}=0.7^{+0.3}_{-0.2}$ $\mathrm{TeV}$, where $E_{\mu}$ is the muon energy and $\theta_{\mathrm{Zenith}}$ is the zenith angle of incoming cosmic-ray muons. This result is consistent with the Honda flux model while this suggests a tension with the $\pi K$ model of $1.9\sigma$. We also measured the muon polarization at the production location to be $P^{\mu}_{0}=0.52 \pm 0.02$ $(\mathrm{stat.}{+}\mathrm{syst.})$ at the muon momentum of $0.9^{+0.6}_{-0.1}$ $\mathrm{TeV}/c$ at the surface of the mountain; this also suggests a tension with the Honda flux model of $1.5\sigma$. This is the most precise measurement ever to experimentally determine the cosmic-ray muon polarization near $1~\mathrm{TeV}/c$. These measurement results are useful to improve the atmospheric neutrino simulations., Comment: 29 pages, 45 figures

Published
2024

8. Second gadolinium loading to Super-Kamiokande

Author

Abe, K., Bronner, C., Hayato, Y., Hiraide, K., Hosokawa, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Tanaka, H., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Yoshida, S., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Jang, M. C., Lee, S. H., Moon, D. H., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Beauchene, A., Drapier, O., Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Rogly, R., Nakamura, T., Jang, J. S., Machado, L. N., Learned, J. G., Choi, K., Iovine, N., Cao, S., Anthony, L. H. V., Martin, D., Prouse, N. W., Scott, M., Uchida, Y., Berardi, V., Calabria, N. F., Catanesi, M. G., Radicioni, E., Langella, A., De Rosa, G., Collazuol, G., Iacob, F., Mattiazzi, M., Ludovici, L., Gonin, M., Perisse, L., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Okazaki, R., Akutsu, R., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Bhuiyan, N., Burton, G. T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Ramsden, R. M., Xie, Z., Zsoldos, S., Suzuki, A. T., Takagi, Y., Takeuchi, Y., Zhong, H., Feng, J., Feng, L., Hu, J. R., Hu, Z., Kawaue, M., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., McCauley, N., Mehta, P., Tarant, A., Wilking, M. J., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Yoshioka, Y., Lagoda, J., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Shi, W., Yanagisawa, C., Harada, M., Hino, Y., Ishino, H., Koshio, Y., Nakanishi, F., Sakai, S., Tada, T., Tano, T., Ishizuka, T., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Jung, S., Yang, B. S., Yang, J. Y., Yoo, J., Fannon, J. E. P., Kneale, L., Malek, M., McElwee, J. M., Thiesse, M. D., Thompson, L. F., Wilson, S. T., Okazawa, H., Lakshmi, S. M., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Tairafune, S., Nishijima, K., Eguchi, A., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Watanabe, E., Yokoyama, M., de Perio, P., Fujita, S., Jesus-Valls, C., Martens, K., Tsui, K. M., Vagins, M. R., Xia, J., Izumiyama, S., Kuze, M., Matsumoto, R., Terada, K., Ishitsuka, M., Ito, H., Ommura, Y., Shigeta, N., Shinoki, M., Yamauchi, K., Yoshida, T., Gaur, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Edwards, R., Hadley, D., Nicholson, M., O'Flaherty, M., Richards, B., Ali, A., Jamieson, B., Amanai, S., Marti, Ll., Minamino, A., Suzuki, S., Scovell, P. R., Meehan, E., Bandac, I., Pena-Garay, C., Perez, J., Gileva, O., Lee, E. K., Leonard, D. S., Sakakieda, Y., Sakaguchi, A., Sueki, K., Takaku, Y., and Yamasaki, S.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The first loading of gadolinium (Gd) into Super-Kamiokande in 2020 was successful, and the neutron capture efficiency on Gd reached 50\%. To further increase the Gd neutron capture efficiency to 75\%, 26.1 tons of $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$ was additionally loaded into Super-Kamiokande (SK) from May 31 to July 4, 2022. As the amount of loaded $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$ was doubled compared to the first loading, the capacity of the powder dissolving system was doubled. We also developed new batches of gadolinium sulfate with even further reduced radioactive impurities. In addition, a more efficient screening method was devised and implemented to evaluate these new batches of $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$. Following the second loading, the Gd concentration in SK was measured to be $333.5\pm2.5$ ppm via an Atomic Absorption Spectrometer (AAS). From the mean neutron capture time constant of neutrons from an Am/Be calibration source, the Gd concentration was independently measured to be 332.7 $\pm$ 6.8(sys.) $\pm$ 1.1(stat.) ppm, consistent with the AAS result. Furthermore, during the loading the Gd concentration was monitored continually using the capture time constant of each spallation neutron produced by cosmic-ray muons,and the final neutron capture efficiency was shown to become 1.5 times higher than that of the first loaded phase, as expected., Comment: 34 pages, 13 figures, submitted to Nuclear Inst. and Methods in Physics Research, A

Published
2024
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9. Development of wide range photon detection system for muonic X-ray spectroscopy

Author

Mizuno, R., Niikura, M., Saito, T. Y., Matsuzaki, T., Sakurai, H., Amato, A., Asari, S., Biswas, S., Chiu, I., Gerchow, L., Guguchia, Z., Janka, G., Ninomiya, K., Ritjoho, N., Sato, A., von Schoeler, K., Tomono, D., Terada, K., and Wang, C.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

We have developed a photon detection system for muonic X-ray spectroscopy. The detector system consists of high-purity germanium detectors with BGO Compton suppressors. The signals from the detectors are readout with a digital acquisition system. The absolute energy accuracy, energy and timing resolutions, photo-peak efficiency, the performance of the Compton suppressor, and high count rate durability are studied with standard $\gamma$-ray sources and in-beam experiment using $^{27}\mathrm{Al}(p, \gamma){}^{28}\mathrm{Si}$ resonance reaction. The detection system was demonstrated at Paul Scherrer Institute. A calibration method for a photon detector at a muon facility using muonic X-rays of $^{197}$Au and $^{209}$Bi is proposed.

Published
2023

11. Developments of a new data acquisition system at ANNRI

Author

Nakao T., Terada K., Kimura A., Nakamura S., Iwamoto O., Harada H., Katabuchi T., Igashira M., and Hori J.

Subjects
Physics, QC1-999
Abstract

A new data acquisition system (DAQ system) has been developed at the Accurate Neutron-Nucleus Reaction Measurement Instrument (ANNRI) facility in the Japan Proton Accelerator Research Complex, Materials and Life Science Experimental Facility (J-PARC/MLF). DAQ systems for both the Ge detector system and the Li-glass detector system were tested by using a gold sample. The applicability of the time-of-flight method was checked. System performance was evaluated on the basis of digital conversion nonlinearity, energy resolution, multi-channel coincidence and dead time.

Published
2017
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12. Body Stalk Anomaly Complicated by Ectopia Cordis in the First Trimester

Author

Shibata Y., Terada K., Igarashi M., and Suzuki S.

Subjects
body-stalk anomaly, prenatal diagnosis, Medicine
Abstract

The most serious conditions seen in body stalk anomaly may be the cases which are complicated by ectopia cordis, which is characterized by the abnormal location of the heart outside the thorax. We encountered four cases of body stalk anomaly, which were complicated by ectopia cordis, which were diagnosed in the first trimesters of pregnancy. In three of these cases, ultrasound scans revealed foetuses with large anterior abdominal wall defects, with their hearts extending outside their thoracic cavities. Their mothers, along with their husbands opted for termination of their pregnancies. In 1 other case, an ultrasound scan revealed a dead foetus, with gastroschisis. Based on the current cases, we suggest that the diagnosis of ectopia cordis caused by body stalk anomaly can be made during the first trimester of pregnancy.

Published
2014
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13. Neutron capture cross section and capture gamma-ray spectra of 138Ba in the keV-neutron energy region

Author

Katabuchi T., Yanagida S., Terada K., Iwamoto N., and Igashira M.

Subjects
Physics, QC1-999
Abstract

The neutron capture cross sections and the capture γ-ray spectra of 138Ba were measured in the astrophysically important energy region. Measurements were made at neutron energies from 15 to 80 keV. The neutron energy was determined by the time-of-flight method. The γ-ray spectra showed that the primary transition pattern strongly depended on the incident neutron energy. The neutron capture cross sections were derived by the pulse height weighting technique. The present cross section values were compared with evaluated cross section data and previous measurements.

Published
2015
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15. Second gadolinium loading to Super-Kamiokande

Author

Abe, K., primary, Bronner, C., additional, Hayato, Y., additional, Hiraide, K., additional, Hosokawa, K., additional, Ieki, K., additional, Ikeda, M., additional, Kameda, J., additional, Kanemura, Y., additional, Kaneshima, R., additional, Kashiwagi, Y., additional, Kataoka, Y., additional, Miki, S., additional, Mine, S., additional, Miura, M., additional, Moriyama, S., additional, Nakano, Y., additional, Nakahata, M., additional, Nakayama, S., additional, Noguchi, Y., additional, Sato, K., additional, Sekiya, H., additional, Shiba, H., additional, Shimizu, K., additional, Shiozawa, M., additional, Sonoda, Y., additional, Suzuki, Y., additional, Takeda, A., additional, Takemoto, Y., additional, Tanaka, H., additional, Yano, T., additional, Han, S., additional, Kajita, T., additional, Okumura, K., additional, Tashiro, T., additional, Tomiya, T., additional, Wang, X., additional, Yoshida, S., additional, Fernandez, P., additional, Labarga, L., additional, Ospina, N., additional, Zaldivar, B., additional, Pointon, B.W., additional, Kearns, E., additional, Raaf, J.L., additional, Wan, L., additional, Wester, T., additional, Bian, J., additional, Griskevich, N.J., additional, Smy, M.B., additional, Sobel, H.W., additional, Takhistov, V., additional, Yankelevich, A., additional, Hill, J., additional, Jang, M.C., additional, Lee, S.H., additional, Moon, D.H., additional, Park, R.G., additional, Bodur, B., additional, Scholberg, K., additional, Walter, C.W., additional, Beauchêne, A., additional, Drapier, O., additional, Giampaolo, A., additional, Mueller, Th.A., additional, Santos, A.D., additional, Paganini, P., additional, Quilain, B., additional, Rogly, R., additional, Nakamura, T., additional, Jang, J.S., additional, Machado, L.N., additional, Learned, J.G., additional, Choi, K., additional, Iovine, N., additional, Cao, S., additional, Anthony, L.H.V., additional, Martin, D., additional, Prouse, N.W., additional, Scott, M., additional, Uchida, Y., additional, Berardi, V., additional, Calabria, N.F., additional, Catanesi, M.G., additional, Radicioni, E., additional, Langella, A., additional, De Rosa, G., additional, Collazuol, G., additional, Iacob, F., additional, Mattiazzi, M., additional, Ludovici, L., additional, Gonin, M., additional, Périssé, L., additional, Pronost, G., additional, Fujisawa, C., additional, Maekawa, Y., additional, Nishimura, Y., additional, Okazaki, R., additional, Akutsu, R., additional, Friend, M., additional, Hasegawa, T., additional, Ishida, T., additional, Kobayashi, T., additional, Jakkapu, M., additional, Matsubara, T., additional, Nakadaira, T., additional, Nakamura, K., additional, Oyama, Y., additional, Sakashita, K., additional, Sekiguchi, T., additional, Tsukamoto, T., additional, Bhuiyan, N., additional, Burton, G.T., additional, Di Lodovico, F., additional, Gao, J., additional, Goldsack, A., additional, Katori, T., additional, Migenda, J., additional, Ramsden, R.M., additional, Xie, Z., additional, Zsoldos, S., additional, Suzuki, A.T., additional, Takagi, Y., additional, Takeuchi, Y., additional, Zhong, H., additional, Feng, J., additional, Feng, L., additional, Hu, J.R., additional, Hu, Z., additional, Kawaue, M., additional, Kikawa, T., additional, Mori, M., additional, Nakaya, T., additional, Wendell, R.A., additional, Yasutome, K., additional, Jenkins, S.J., additional, McCauley, N., additional, Mehta, P., additional, Tarant, A., additional, Wilking, M.J., additional, Fukuda, Y., additional, Itow, Y., additional, Menjo, H., additional, Ninomiya, K., additional, Yoshioka, Y., additional, Lagoda, J., additional, Mandal, M., additional, Mijakowski, P., additional, Prabhu, Y.S., additional, Zalipska, J., additional, Jia, M., additional, Jiang, J., additional, Shi, W., additional, Yanagisawa, C., additional, Harada, M., additional, Hino, Y., additional, Ishino, H., additional, Koshio, Y., additional, Nakanishi, F., additional, Sakai, S., additional, Tada, T., additional, Tano, T., additional, Ishizuka, T., additional, Barr, G., additional, Barrow, D., additional, Cook, L., additional, Samani, S., additional, Wark, D., additional, Holin, A., additional, Nova, F., additional, Jung, S., additional, Yang, B.S., additional, Yang, J.Y., additional, Yoo, J., additional, Fannon, J.E.P., additional, Kneale, L., additional, Malek, M., additional, McElwee, J.M., additional, Thiesse, M.D., additional, Thompson, L.F., additional, Wilson, S.T., additional, Okazawa, H., additional, Lakshmi, S.M., additional, Kim, S.B., additional, Kwon, E., additional, Seo, J.W., additional, Yu, I., additional, Ichikawa, A.K., additional, Tairafune, S., additional, Nishijima, K., additional, Eguchi, A., additional, Nakagiri, K., additional, Nakajima, Y., additional, Shima, S., additional, Taniuchi, N., additional, Watanabe, E., additional, Yokoyama, M., additional, de Perio, P., additional, Fujita, S., additional, Jesús-Valls, C., additional, Martens, K., additional, Tsui, K.M., additional, Vagins, M.R., additional, Xia, J., additional, Izumiyama, S., additional, Kuze, M., additional, Matsumoto, R., additional, Terada, K., additional, Ishitsuka, M., additional, Ito, H., additional, Ommura, Y., additional, Shigeta, N., additional, Shinoki, M., additional, Yamauchi, K., additional, Yoshida, T., additional, Gaur, R., additional, Gousy-Leblanc, V., additional, Hartz, M., additional, Konaka, A., additional, Li, X., additional, Chen, S., additional, Xu, B.D., additional, Zhang, B., additional, Posiadala-Zezula, M., additional, Boyd, S.B., additional, Edwards, R., additional, Hadley, D., additional, Nicholson, M., additional, O’Flaherty, M., additional, Richards, B., additional, Ali, A., additional, Jamieson, B., additional, Amanai, S., additional, Marti, Ll., additional, Minamino, A., additional, Suzuki, S., additional, Scovell, P.R., additional, Meehan, E., additional, Bandac, I., additional, Peña-Garay, C., additional, Pérez, J., additional, Gileva, O., additional, Lee, E.K., additional, Leonard, D.S., additional, Sakakieda, Y., additional, Sakaguchi, A., additional, Sueki, K., additional, Takaku, Y., additional, and Yamasaki, S., additional

Published
2024
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20. Formation of an ultracarbonaceous Antarctic micrometeorite through minimal aqueous alteration in a small porous icy body

Author

Yabuta, H, Noguchi, T, Itoh, S, Nakamura, T, Miyake, A, Tsujimoto, S, Ohashi, N, Sakamoto, N, Hashiguchi, M, Abe, KI, Okubo, A, Kilcoyne, ALD, Tachibana, S, Okazaki, R, Terada, K, Ebihara, M, and Nagahara, H

Subjects
Ultracarbonaceous Antarctic micrometeorites, Organic matter, GEMS, Aqueous alteration, Comet, Shock, SIMS, XANES, TEM, Geochemistry, Geology, Physical Geography and Environmental Geoscience, Geochemistry & Geophysics
Abstract

A comprehensive study of the organic chemistry and mineralogy of an ultracarbonaceous micrometeorite (UCAMM D05IB80) collected from near the Dome Fuji Station, Antarctica, was carried out to understand the genetic relationship among organic materials, silicates, and water. The micrometeorite is composed of a dense aggregate of ∼5 µm-sized hollow ellipsoidal organic material containing submicrometer-sized phases such as glass with embedded metal and sulfides (GEMS) and mineral grains. There is a wide area of organic material (∼15 × 15 μm) in its interior. Low-Ca pyroxene is much more abundant than olivine and shows various Mg/(Mg + Fe) ratios ranging from ∼1.0 to 0.78, which is common to previous works on UCAMMs. By contrast, GEMS grains in this UCAMM have unusual chemical compositions. They are depleted in both Mg and S, which suggests that these elements were leached out from the GEMS grains during very weak aqueous alteration, without the formation of phyllosilicates. The organic materials have two textures—smooth and globular with an irregular outline—and these are composed of imine, nitrile and/or aromatic nitrogen heterocycles, and amide. The ratio of nitrogen to carbon (N/C) in the smooth region of the organics is ∼0.15, which is five times higher than that of insoluble organic macromolecules in types 1 and 2 carbonaceous chondritic meteorites. In addition, the UCAMM organic materials are soluble in epoxy and are thus hydrophilic; this polar nature indicates that they are very primitive. The surface of the material is coated with an inorganic layer, a few nanometers thick, that consists of C, O, Si, S, and Fe. Sulfur is also contained in the interior, implying the presence of organosulfur moieties. There are no isotopic anomalies of D, 13C, or 15N in the organic material. Interstellar photochemistry alone would not be sufficient to explain the N/C ratio of the UCAMM organics; therefore, we suggest that a very small amount of fluid on a comet must have been necessary for the formation of the UCAMM. The GEMS grains depleted in Mg and S in the UCAMM prove a very weak degree of aqueous alteration; weaker than that of carbonaceous chondrites. Short-duration weak alteration probably caused by planetesimal shock locally melted cometary ice grains and released water that dissolved the organics; the fluid would likely have not mobilized because of the very low thermal conductivity of the porous icy body. This event allowed the formation of the large organic puddle of the UCAMM, as well as organic matter sulfurization, formation of thin membrane-like layers of minerals, and deformation of organic nanoglobules.

Published
2017

23. EP08.02-35 Prognostic Impacts of Lymphovascular Invasion of Resected Lung Adenocarcinoma after Induction Chemoradiotherapy

Author

Kabuto, T., primary, Menju, T., additional, Nishikawa, S., additional, Terada, K., additional, Yoshizawa, A., additional, Aruga, N., additional, Matsumoto, K., additional, Imamura, Y., additional, Tanaka, S., additional, Yutaka, Y., additional, Yamada, Y., additional, Ohsumi, A., additional, Nakajima, D., additional, Hamaji, M., additional, and Date, H., additional

Published
2023
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29. Energy Spectra and Normalized Power Spectral Densities of X-Ray Nova GS 2000+25

Author

Terada, K., Kitamoto, S., Negoro, H., and Iga, S.

Subjects
Astrophysics
Abstract

The X-ray energy spectra and Normalized Power Spectral Densities (NPSDs) of an X-ray nova, GS 2000+25, were investigated. The X-ray energy spectra of the source consist of two components: a hard component, which can be represented by a power-law, and an ultra-soft component, represented by radiation from an optically-thick accretion disk (the disk component). In a model in which the power-law component is the Compton-scattered radiation, it is found that the temperature of the incident blackbody radiation to the Compton cloud decrease from 0.8 keV to 0.2 keV according to the decay of the intensity, which coincides with that of the inner accretion disk. When the source changed from the high-state to the low-state, both the photon index of the power-law component (or Compton y-parameter) and the NPSD of the hard component dramatically changed as did GS 1124-683. That is, the photon index changed from 2.2--2.6 to 1.7--1.8 and the absolute values of the NPSDs at 0.3 Hz of the hard component in the low-state became about 10-times larger than those of the hard component in the high-state. These X-ray properties were similar to those of other black-hole candidates, such as Cyg X-1, GX 339-4, and LMC X-3., Comment: 24 pages, text only, Full version is published in PASJ 54, 609-627 (2002)

Published
2002
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30. Associations of Low Skeletal Muscle Quantity With Coronary Artery Calcification and Low Bone Mineral Density on Computed Tomography in Normal Weight Patients With COPD

Author

Terada, S., primary, Tanabe, N., additional, Maetani, T., additional, Shiraishi, Y., additional, Terada, K., additional, Shima, H., additional, Sakamoto, R., additional, Oguma, T., additional, Sato, A., additional, Masuda, I., additional, Sato, S., additional, and Hirai, T., additional

Published
2023
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33. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples

Author

Nakamura, T., primary, Matsumoto, M., additional, Amano, K., additional, Enokido, Y., additional, Zolensky, M. E., additional, Mikouchi, T., additional, Genda, H., additional, Tanaka, S., additional, Zolotov, M. Y., additional, Kurosawa, K., additional, Wakita, S., additional, Hyodo, R., additional, Nagano, H., additional, Nakashima, D., additional, Takahashi, Y., additional, Fujioka, Y., additional, Kikuiri, M., additional, Kagawa, E., additional, Matsuoka, M., additional, Brearley, A. J., additional, Tsuchiyama, A., additional, Uesugi, M., additional, Matsuno, J., additional, Kimura, Y., additional, Sato, M., additional, Milliken, R. E., additional, Tatsumi, E., additional, Sugita, S., additional, Hiroi, T., additional, Kitazato, K., additional, Brownlee, D., additional, Joswiak, D. J., additional, Takahashi, M., additional, Ninomiya, K., additional, Takahashi, T., additional, Osawa, T., additional, Terada, K., additional, Brenker, F. E., additional, Tkalcec, B. J., additional, Vincze, L., additional, Brunetto, R., additional, Aléon-Toppani, A., additional, Chan, Q. H. S., additional, Roskosz, M., additional, Viennet, J.-C., additional, Beck, P., additional, Alp, E. E., additional, Michikami, T., additional, Nagaashi, Y., additional, Tsuji, T., additional, Ino, Y., additional, Martinez, J., additional, Han, J., additional, Dolocan, A., additional, Bodnar, R. J., additional, Tanaka, M., additional, Yoshida, H., additional, Sugiyama, K., additional, King, A. J., additional, Fukushi, K., additional, Suga, H., additional, Yamashita, S., additional, Kawai, T., additional, Inoue, K., additional, Nakato, A., additional, Noguchi, T., additional, Vilas, F., additional, Hendrix, A. R., additional, Jaramillo-Correa, C., additional, Domingue, D. L., additional, Dominguez, G., additional, Gainsforth, Z., additional, Engrand, C., additional, Duprat, J., additional, Russell, S. S., additional, Bonato, E., additional, Ma, C., additional, Kawamoto, T., additional, Wada, T., additional, Watanabe, S., additional, Endo, R., additional, Enju, S., additional, Riu, L., additional, Rubino, S., additional, Tack, P., additional, Takeshita, S., additional, Takeichi, Y., additional, Takeuchi, A., additional, Takigawa, A., additional, Takir, D., additional, Tanigaki, T., additional, Taniguchi, A., additional, Tsukamoto, K., additional, Yagi, T., additional, Yamada, S., additional, Yamamoto, K., additional, Yamashita, Y., additional, Yasutake, M., additional, Uesugi, K., additional, Umegaki, I., additional, Chiu, I., additional, Ishizaki, T., additional, Okumura, S., additional, Palomba, E., additional, Pilorget, C., additional, Potin, S. M., additional, Alasli, A., additional, Anada, S., additional, Araki, Y., additional, Sakatani, N., additional, Schultz, C., additional, Sekizawa, O., additional, Sitzman, S. D., additional, Sugiura, K., additional, Sun, M., additional, Dartois, E., additional, De Pauw, E., additional, Dionnet, Z., additional, Djouadi, Z., additional, Falkenberg, G., additional, Fujita, R., additional, Fukuma, T., additional, Gearba, I. R., additional, Hagiya, K., additional, Hu, M. Y., additional, Kato, T., additional, Kawamura, T., additional, Kimura, M., additional, Kubo, M. K., additional, Langenhorst, F., additional, Lantz, C., additional, Lavina, B., additional, Lindner, M., additional, Zhao, J., additional, Vekemans, B., additional, Baklouti, D., additional, Bazi, B., additional, Borondics, F., additional, Nagasawa, S., additional, Nishiyama, G., additional, Nitta, K., additional, Mathurin, J., additional, Matsumoto, T., additional, Mitsukawa, I., additional, Miura, H., additional, Miyake, A., additional, Miyake, Y., additional, Yurimoto, H., additional, Okazaki, R., additional, Yabuta, H., additional, Naraoka, H., additional, Sakamoto, K., additional, Tachibana, S., additional, Connolly, H. C., additional, Lauretta, D. S., additional, Yoshitake, M., additional, Yoshikawa, M., additional, Yoshikawa, K., additional, Yoshihara, K., additional, Yokota, Y., additional, Yogata, K., additional, Yano, H., additional, Yamamoto, Y., additional, Yamamoto, D., additional, Yamada, M., additional, Yamada, T., additional, Yada, T., additional, Wada, K., additional, Usui, T., additional, Tsukizaki, R., additional, Terui, F., additional, Takeuchi, H., additional, Takei, Y., additional, Iwamae, A., additional, Soejima, H., additional, Shirai, K., additional, Shimaki, Y., additional, Senshu, H., additional, Sawada, H., additional, Saiki, T., additional, Ozaki, M., additional, Ono, G., additional, Okada, T., additional, Ogawa, N., additional, Ogawa, K., additional, Noguchi, R., additional, Noda, H., additional, Nishimura, M., additional, Namiki, N., additional, Nakazawa, S., additional, Morota, T., additional, Miyazaki, A., additional, Miura, A., additional, Mimasu, Y., additional, Matsumoto, K., additional, Kumagai, K., additional, Kouyama, T., additional, Kikuchi, S., additional, Kawahara, K., additional, Kameda, S., additional, Iwata, T., additional, Ishihara, Y., additional, Ishiguro, M., additional, Ikeda, H., additional, Hosoda, S., additional, Honda, R., additional, Honda, C., additional, Hitomi, Y., additional, Hirata, N., additional, Hayashi, T., additional, Hayakawa, M., additional, Hatakeda, K., additional, Furuya, S., additional, Fukai, R., additional, Fujii, A., additional, Cho, Y., additional, Arakawa, M., additional, Abe, M., additional, and Tsuda, Y., additional

Published
2023
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34. Cover Image

Author

Terada, K, primary, Yoshizawa, A, additional, Sumiyoshi, S, additional, Rokutan‐Kurata, M, additional, Nakajima, N, additional, Hamaji, M, additional, Sonobe, M, additional, Menju, T, additional, Date, H, additional, and Haga, H, additional

Published
2023
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41. The Solar System calcium isotopic composition inferred from Ryugu samples

Author

Moynier, F., primary, Dai, W., additional, Yokoyama, T., additional, Hu, Y., additional, Paquet, M., additional, Abe, Y., additional, Aléon, J., additional, Alexander, C.M.O'D, additional, Amari, S., additional, Amelin, Y., additional, Bajo, K.-I., additional, Bizzarro, M., additional, Bouvier, A., additional, Carlson, R.W., additional, Chaussidon, M., additional, Choi, B.-G., additional, Dauphas, N., additional, Davis, A.M., additional, Di Rocco, T., additional, Fujiya, W., additional, Fukai, R., additional, Gautam, I., additional, Haba, M.K., additional, Hibiya, Y., additional, Hidaka, H., additional, Homma, H., additional, Hoppe, P., additional, Huss, G.R., additional, Ichida, K., additional, Iizuka, T., additional, Ireland, T.R., additional, Ishikawa, A., additional, Ito, M., additional, Itoh, S., additional, Kawasaki, N., additional, Kita, N.T., additional, Kitajima, K., additional, Kleine, T., additional, Komatani, S., additional, Krot, A.N., additional, Liu, M.-C., additional, Masuda, Y., additional, McKeegan, K.D., additional, Morita, M., additional, Motomura, K., additional, Nakai, I., additional, Nagashima, K., additional, Nesvorný, D., additional, Nguyen, A., additional, Nittler, L., additional, Onose, M., additional, Pack, A., additional, Park, C., additional, Piani, L., additional, Qin, L., additional, Russell, S.S., additional, Sakamoto, N., additional, Schönbächler, M., additional, Tafla, L., additional, Tang, H., additional, Terada, K., additional, Terada, Y., additional, Usui, T., additional, Wada, S., additional, Wadhwa, M., additional, Walker, R.J., additional, Yamashita, K., additional, Yin, Q.-Z., additional, Yoneda, S., additional, Young, E.D., additional, Yui, H., additional, Zhang, A.-C., additional, Nakamura, T., additional, Naraoka, H., additional, Noguchi, T., additional, Okazaki, R., additional, Sakamoto, K., additional, Yabuta, H., additional, Abe, M., additional, Miyazaki, A., additional, Nakato, A., additional, Nishimura, M., additional, Okada, T., additional, Yada, T., additional, Yogata, K., additional, Nakazawa, S., additional, Saiki, T., additional, Tanaka, S., additional, Terui, F., additional, Tsuda, Y., additional, Watanabe, S.-I., additional, Yoshikawa, M., additional, Tachibana, S., additional, and Yurimoto, H., additional

Published
2022
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