Search

Your search keyword '"Abe, S"' showing total 4,875 results
Start Over Author "Abe, S" Language english
4,875 results on '"Abe, S"'

2. Analysis of Oxygen Concentration in the Oral Cavity During Intravenous Sedation with Intranasal Oxygen Administration for Dental Treatment

Author

Abe S, Furuyama A, Ohsuga K, Yamazaki S, and Kawaai H

Subjects
nasal cannula, propofol, mouth prop, airway fire, upper airway obstruction, Therapeutics. Pharmacology, RM1-950
Abstract

Shota Abe,1 Akira Furuyama,2 Kenji Ohsuga,2 Shinya Yamazaki,1 Hiroyoshi Kawaai1,2 1Department of Dental Anesthesiology, Ohu University, School of Dentistry, Koriyama City, Fukushima Prefecture, Japan; 2Department of Oral Physiology and Biochemistry, Ohu University, School of Dentistry, Koriyama City, Fukushima Prefecture, JapanCorrespondence: Hiroyoshi Kawaai, Department of Dental Anesthesiology, Ohu University School of Dentistry, 31-1 Misumido, Tomita, Koriyama City, Fukushima, 963-8611, Japan, Tel +81-24-932-9337, Email h-kawai@den.ohu-u.au.jpPurpose: Intravenous sedation (IVS) with propofol (PPF) is commonly performed in dental treatment, particular in patients with dentophobia, with gag reflex, or undergoing implant surgeries, as PPF has the advantages of rapid induction and recovery. However, PPF and other intravenous sedatives may cause respiratory depression. Thus, IVS with PPF requires oxygen administration. But airway burn may occur when high-concentration oxygen is stored in the oral cavity and catches fire. For these reasons, the present study aimed to elucidate the changes in oxygen concentration (OC) under IVS with PPF and oxygen administration.Patients and methods: Nineteen healthy male volunteers participated in the study. None of them had missing teeth, nasal congestion, or temporomandibular joint dysfunction. They were sedated with a continuous PPF infusion dose of 6 mg/kg/hr for 25 min, followed by administration of 3 L/min oxygen via a nasal cannula. The OC was measured at two sites, namely, the median maxillary anterior teeth (MMAT) and median maxillary soft palate (MMSP), before PPF infusion (baseline) and 14, 15– 18 (Term 1), 19, and 20– 23 (Term 2) min after the start of infusion.Results: Compared with the values at baseline, the OC in the MMSP significantly increased at each time point, whereas the OC in the MMAT significantly increased at Term 2. Furthermore, in the comparison of the OC before and after the use of a mouth prop, the OC exhibited an upward trend, but no statistically significant differences were observed between the two time points in the MMAT and MMSP. In IVS with PPF and oxygen administration, the OC in the pharynx increases as the sedative level deepens.Conclusion: Oxygen administration should be temporarily discontinued, and suction should be performed to decrease the OC in the oral cavity when sparking procedures during IVS with PPF and oxygen administration are performed.Keywords: nasal cannula, propofol, mouth prop, airway fire, upper airway obstruction

Published
2024

4. Usefulness of Computed Tomography for Evaluating the Effects of Bronchial Thermoplasty in Japanese Patients with Severe Asthma

Author

Abe S, Yasuda M, Tobino K, Harada S, Sasano H, Tanabe Y, Sandhu Y, Takeshige T, Matsuno K, Asao T, Sueyasu T, Nishizawa S, Yoshimine K, Ko Y, Yoshimatsu Y, Tsuruno K, Ide H, Takagi H, Ito J, Nagaoka T, Harada N, and Takahashi K

Subjects
asthma, bronchial thermoplasty, chest computed tomography, asthma control questionnaire, √wa at pi10, Immunologic diseases. Allergy, RC581-607
Abstract

Sumiko Abe,1 Mina Yasuda,1,2 Kazunori Tobino,1,2 Sonoko Harada,1,3 Hitoshi Sasano,1 Yuki Tanabe,1 Yuuki Sandhu,1 Tomohito Takeshige,1 Kei Matsuno,1 Tetsuhiko Asao,1 Takuto Sueyasu,2 Saori Nishizawa,2 Kohei Yoshimine,2 Yuki Ko,2 Yuki Yoshimatsu,2 Kosuke Tsuruno,2 Hiromi Ide,2 Haruhi Takagi,1 Jun Ito,1 Tetsutaro Nagaoka,1 Norihiro Harada,1,3,4 Kazuhisa Takahashi1,4 1Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan; 2Department of Respiratory Medicine, Iizuka Hospital, Fukuoka, Japan; 3Atopy (Allergy) Research Center, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan; 4Research Institute for Diseases of Old Age, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, JapanCorrespondence: Norihiro Harada, Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan, Tel +81-3-5802-1063, Fax +81-3-5802-1617, Email nor@juntendo.ac.jpBackground: Bronchial thermoplasty (BT) improves clinical outcomes and quality of life for patients with severe asthma and has shown sustained reductions in airway narrowing and air trapping in previous CT studies. However, there is a lack of a comprehensive analysis, including CT evaluation, of clinical outcomes in Japanese patients who have undergone BT for severe asthma. This study aimed to evaluate the impact of BT in Japanese asthma patients, with a focus on the CT metric “WA at Pi10” to assess airway disease.Methods: Twelve patients with severe persistent asthma who underwent BT were assessed using ACQ6, AQLQ, pulmonary function tests, FeNO measurement, blood sampling, and chest CT before BT and one year after the third procedure for the upper lobes.Results: The median age of the patient was 62.0 years, 7/12 (58.3%) were male, 4/12 (33.3%) used regular oral corticosteroids, and 8/12 (66.7%) received biologics. Median FEV1% was 73.6%, and median peripheral eosinophil count was 163.8/μL. After one year of BT, ACQ6 scores improved from 2.4 to 0.8 points (p = 0.007), and AQLQ scores improved from 4.3 to 5.8 points (p < 0.001). Significant improvements were also observed in asthma exacerbations, unscheduled visits due to exacerbations, FeNO, and √WA at Pi10 (p < 0.05). The baseline mucus score on the CT findings was negatively correlated with FEV1 (r = − 0.688, p = 0.013) and with the maximum mid-expiratory flow rate (r = − 0.631, p = 0.028), and positively correlated with the peripheral blood eosinophil count (r = − 0.719, p = 0.008). Changes in √WA at Pi10 after one year were positively correlated with changes in the mucus score (r = 0.742, p = 0.007).Conclusion: This study has limitations, including its single-arm observational design and the small sample size. However, BT led to a symptomatic improvement in patients with severe asthma. The validated “√WA at Pi10” metric on CT effectively evaluated the therapeutic response in Japanese asthma patients after BT.Keywords: asthma, bronchial thermoplasty, chest computed tomography, asthma control questionnaire, √WA at Pi10

Published
2024

6. Constraints on axion-like particles with the Perseus Galaxy Cluster with MAGIC

Author

Abe, H., Abe, S., Abhir, J., Acciari, V.A., Agudo, I., Aniello, T., Ansoldi, S., Antonelli, L.A., Arbet Engels, A., Arcaro, C., Artero, M., Asano, K., Baack, D., Babić, A., Baquero, A., Barres de Almeida, U., Barrio, J.A., Batković, I., Baxter, J., Becerra González, J., Bednarek, W., Bernardini, E., Bernete, J., Berti, A., Besenrieder, J., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Bošnjak, Ž., Burelli, I., Busetto, G., Campoy-Ordaz, A., Carosi, A., Carosi, R., Carretero-Castrillo, M., Castro-Tirado, A.J., Ceribella, G., Chai, Y., Cifuentes, A., Cikota, S., Colombo, E., Contreras, J.L., Cortina, J., Covino, S., D’Amico, G., D’Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Del Popolo, A., Delgado, J., Delgado Mendez, C., Depaoli, D., Di Pierro, F., Di Venere, L., Dominis Prester, D., Donini, A., Dorner, D., Doro, M., Elsaesser, D., Emery, G., Escudero, J., Fariña, L., Fattorini, A., Foffano, L., Font, L., Fukami, S., Fukazawa, Y., García López, R.J., Garczarczyk, M., Gasparyan, S., Gaug, M., Giesbrecht Paiva, J.G., Giglietto, N., Giordano, F., Gliwny, P., Godinović, N., Grau, R., Green, D., Green, J.G., Hadasch, D., Hahn, A., Hassan, T., Heckmann, L., Herrera, J., Hrupec, D., Hütten, M., Imazawa, R., Inada, T., Iotov, R., Ishio, K., Jiménez Martínez, I., Jormanainen, J., Kerszberg, D., Kluge, G.W., Kobayashi, Y., Kouch, P.M., Kubo, H., Kushida, J., Láinez Lezáun, M., Lamastra, A., Leone, F., Lindfors, E., Linhoff, L., Lombardi, S., Longo, F., López-Coto, R., López-Moya, M., López-Oramas, A., Loporchio, S., Lorini, A., Machado de Oliveira Fraga, B., Majumdar, P., Makariev, M., Maneva, G., Mang, N., Manganaro, M., Mangano, S., Mannheim, K., Mariotti, M., Martínez, M., Martínez-Chicharro, M., Mas-Aguilar, A., Mazin, D., Menchiari, S., Mender, S., Miceli, D., Miener, T., Miranda, J.M., Mirzoyan, R., Molero González, M., Molina, E., Mondal, H.A., Moralejo, A., Morcuende, D., Nakamori, T., Nanci, C., Nava, L., Neustroev, V., Nickel, L., Nievas Rosillo, M., Nigro, C., Nikolić, L., Nilsson, K., Nishijima, K., Njoh Ekoume, T., Noda, K., Nozaki, S., Ohtani, Y., Okumura, A., Otero-Santos, J., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J.M., Pavlović, D., Persic, M., Pihet, M., Pirola, G., Podobnik, F., Prada Moroni, P.G., Prandini, E., Principe, G., Priyadarshi, C., Rhode, W., Ribó, M., Rico, J., Righi, C., Sahakyan, N., Saito, T., Satalecka, K., Saturni, F.G., Schleicher, B., Schmidt, K., Schmuckermaier, F., Schubert, J.L., Schweizer, T., Sciaccaluga, A., Sitarek, J., Sliusar, V., Sobczynska, D., Spolon, A., Stamerra, A., Strišković, J., Strom, D., Strzys, M., Suda, Y., Suutarinen, S., Tajima, H., Takahashi, M., Takeishi, R., Tavecchio, F., Temnikov, P., Terauchi, K., Terzić, T., Teshima, M., Tosti, L., Truzzi, S., Tutone, A., Ubach, S., van Scherpenberg, J., Vazquez Acosta, M., Ventura, S., Verguilov, V., Viale, I., Vigorito, C.F., Vitale, V., Vovk, I., Walter, R., Will, M., and Yamamoto, T.

Published
2024
Full Text
View/download PDF

8. Developments and results in the context of the JEM-EUSO program obtained with the ESAF simulation and analysis framework

Author

Abe, S., Adams, Jr., J. H., Allard, D., Alldredge, P., Anchordoqui, L., Anzalone, A., Arnone, E., Baret, B., Barghini, D., Battisti, M., Bayer, J., Bellotti, R., Belov, A. A., Bertaina, M., Bertone, P. F., Bianciotto, M., Biermann, P. L., Bisconti, F., Blaksley, C., Blin-Bondil, S., Bobik, P., Bolmgren, K., Briz, S., Burton, J., Cafagna, F., Cambié, G., Campana, D., Capel, F., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Černý, K., Christl, M. J., Colalillo, R., Conti, L., Cotto, G., Crawford, H. J., Cremonini, R., Creusot, A., Cummings, A., de Castro Gónzalez, A., de la Taille, C., del Peral, L., Diesing, R., Dinaucourt, P., Di Nola, A., Ebersoldt, A., Ebisuzaki, T., Eser, J., Fenu, F., Ferrarese, S., Filippatos, G., Finch, W. W., Flaminio, F., Fornaro, C., Fuehne, D., Fuglesang, C., Fukushima, M., Gardiol, D., Garipov, G. K., Golzio, A., Gorodetzky, P., Guarino, F., Guépin, C., Guzmán, A., Haungs, A., Heibges, T., Hernández-Carretero, J., Isgrò, F., Judd, E. G., Kajino, F., Kaneko, I., Kawasaki, Y., Kleifges, M., Klimov, P. A., Kreykenbohm, I., Krizmanic, J. F., Kungel, V., Kuznetsov, E., López Martínez, F., Mackovjak, S., Mandát, D., Manfrin, M., Marcelli, A., Marcelli, L., Marszał, W., Matthews, J. N., Menshikov, A., Mernik, T., Mese, M., Meyer, S. S., Mimouni, J., Miyamoto, H., Mizumoto, Y., Monaco, A., Morales de los Ríos, J.A, Nagataki, S., Nachtman, J. M., Naumov, D., Neronov, A., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Onel, Y., Osteria, G., Pagliaro, A., Panico, B., Parizot, E., Park, I. H., Pastircak, B., Paul, T., Pech, M., Perfetto, F., Picozza, P., Piotrowski, L. W., Plebaniak, Z., Posligua, J., Prevete, R., Prévôt, G., Prieto, H., Przybylak, M., Putis, M., Reali, E., Reardon, P., Reno, M. H., Ricci, M., Rodríguez Frías, M., Romoli, G., Sáez Cano, G., Sagawa, H., Sakaki, N., Santangelo, A., Saprykin, O. A., Sarazin, F., Sato, M., Schieler, H., Schovánek, P., Scotti, V., Selmane, S., Sharakin, S. A., Shinozaki, K., Soriano, J. F., Szabelski, J., Tajima, N., Tajima, T., Takahashi, Y., Takeda, M., Takizawa, Y., Tenzer, C., Thomas, S. B., Tkachev, L. G., Tomida, T., Toscano, S., Traïche, M., Trofimov, D., Tsuno, K., Vallania, P., Valore, L., Venters, T. M., Vigorito, C., von Ballmoos, P., Vrabel, M., Wada, S., Watts, Jr., J., Weindl, A., Wiencke, L., Wilms, J., Winn, D., Wistrand, H., Yashin, I. V., Young, R., and Zotov, M. Yu.

Published
2023
Full Text
View/download PDF

10. EUSO-SPB1 mission and science

Author

Abdellaoui, G., Abe, S., Adams, J.H., Jr., Allard, D., Alonso, G., Anchordoqui, L., Anzalone, A., Arnone, E., Asano, K., Attallah, R., Attoui, H., Pernas, M. Ave, Bachmann, R., Bacholle, S., Bagheri, M., Bakiri, M., Baláz, J., Barghini, D., Bartocci, S., Battisti, M., Bayer, J., Beldjilali, B., Belenguer, T., Belkhalfa, N., Bellotti, R., Belov, A.A., Benmessai, K., Bertaina, M., Bertone, P.F., Biermann, P.L., Bisconti, F., Blaksley, C., Blanc, N., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bolmgren, K., Bozzo, E., Briz, S., Bruno, A., Caballero, K.S., Cafagna, F., Cambié, G., Campana, D., Capdevielle, J.N., Capel, F., Caramete, A., Caramete, L., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Catalano, O., Cellino, A., Černý, K., Chikawa, M., Chiritoi, G., Christl, M.J., Colalillo, R., Conti, L., Cotto, G., Crawford, H.J., Cremonini, R., Creusot, A., Cummings, A., de Castro Gónzalez, A., de la Taille, C., del Peral, L., Desiato, J., Damian, A. Diaz, Diesing, R., Dinaucourt, P., Djakonow, A., Djemil, T., Ebersoldt, A., Ebisuzaki, T., Eser, J., Fenu, F., Fernández-González, S., Ferrarese, S., Filippatos, G., Finch, W., Fornaro, C., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujii, T., Fukushima, M., Galeotti, P., García-Ortega, E., Gardiol, D., Garipov, G.K., Gascón, E., Gazda, E., Genci, J., Golzio, A., Gorodetzky, P., Gregg, R., Green, A., Guarino, F., Guépin, C., Guzmán, A., Hachisu, Y., Haungs, A., Heigbes, T., Carretero, J. Hernández, Hulett, L., Ikeda, D., Inoue, N., Inoue, S., Isgrò, F., Itow, Y., Jammer, T., Jeong, S., Jochum, J., Joven, E., Judd, E.G., Jung, A., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Kasztelan, M., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B.A., Kim, Jeong-Sook, Kim, Soon-Wook, Kleifges, M., Klimov, P.A., Kreykenbohm, I., Krizmanic, J.F., Królik, K., Kungel, V., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lahmar, H., Lakhdari, F., Licandro, J., Campano, L. López, Martínez, F. López, Mackovjak, S., Mahdi, M., Mandát, D., Manfrin, M., Marcelli, L., Marcos, J.L., Marszał, W., Martín, Y., Martinez, O., Mase, K., Mastafa, M., Matthews, J.N., Mebarki, N., Medina-Tanco, G., Menshikov, A., Merino, A., Mese, M., Meseguer, J., Meyer, S.S., Mimouni, J., Miyamoto, H., Mizumoto, Y., Monaco, A., de los Ríos, J.A. Morales, Nachtman, J.M., Nagataki, S., Naitamor, S., Napolitano, T., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A.V., Onel, Y., Osteria, G., Otte, A.N., Pagliaro, A., Painter, W., Panasyuk, M.I., Panico, B., Parizot, E., Park, I.H., Pastircak, B., Paul, T., Pech, M., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pindado, S., Piotrowski, L.W., Piraino, S., Plebaniak, Z., Pollini, A., Popescu, E.M., Prevete, R., Prévôt, G., Prieto, H., Przybylak, M., Puehlhofer, G., Putis, M., Reardon, P., Reno, M.H., Reyes, M., Ricci, M., Frías, M.D. Rodríguez, Matamala, O.F. Romero, Ronga, F., Sabau, M.D., Saccá, G., Sagawa, H., Sahnoune, Z., Saito, A., Sakaki, N., Salazar, H., Sánchez, J.L., Balanzar, J.C. Sanchez, Santangelo, A., Sanz-Andrés, A., Saprykin, O.A., Sarazin, F., Sato, M., Scagliola, A., Schanz, T., Schieler, H., Schovánek, P., Scotti, V., Serra, M., Sharakin, S.A., Shimizu, H.M., Shinozaki, K., Soriano, J.F., Sotgiu, A., Stan, I., Strharský, I., Sugiyama, N., Supanitsky, D., Suzuki, M., Szabelski, J., Tajima, N., Tajima, T., Takahashi, Y., Takeda, M., Takizawa, Y., Talai, M.C., Tameda, Y., Tenzer, C., Thomas, S.B., Tibolla, O., Tkachev, L.G., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsunesada, Y., Tsuno, K., Turriziani, S., Uchihori, Y., Valdés-Galicia, J.F., Vallania, P., Valore, L., Vankova-Kirilova, G., Venters, T.M., Vigorito, C., Villaseñor, L., Vlcek, B., von Ballmoos, P., Vrabel, M., Wada, S., Watanabe, J., Watts, J., Jr., Muñoz, R. Weigand, Weindl, A., Wiencke, L., Wille, M., Wilms, J., Yamamoto, T., Yang, J., Yano, H., Yashin, I.V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I.S., Zotov, M.Yu., and Marchi, A. Zuccaro

Published
2024
Full Text
View/download PDF

11. Enhancement of the functional, pasting and textural properties of poundo yam flour through cassava flour supplementation

Author

Samson A. Oyeyinka, Oluwatosin E. Taiwo, Hamza Abdul, Ginalyn A. Rustria, Ajibola B. Oyedeji, Oluwafemi A. Adebo, Abe S. Gerrano, Stephen O. Amoo, and Patrick B. Njobeh

Subjects
Cassava flour, Functional properties, Pounded yam, Texture, Yam flour, Food processing and manufacture, TP368-456
Abstract

In this study, poundo yam flour was supplemented with cassava flour (5, 15, 30 and 50%) and the functionality of the flour and quality of the cooked dough were determined. The composite flours and yam flour (approx. 56%) were more dispersible than the cassava flour (approx. 50%). Cassava flour addition significantly (p ≤ 0.05) increased the lightness of poundo yam flour (75.65–84.67) and the ability of the flours to absorb water, but the lightness values (61.60–64.79) of the cooked dough did not change significantly (p > 0.05). Samples with cassava flour were firmer (7.56–22.87 N), stickier (2.51–5.92 Ns) and gummier (2.57–5.48 N) than the control dough. Sensory ratings were similar across the cooked poundo yam samples. This study demonstrated that cassava flour can be used to supplement yam flour for poundo yam flour production.

Published
2023
Full Text
View/download PDF

14. Hydrogen irradiation-driven computational surface chemistry of lithium oxide and hydroxide.

Author

Krstic, P. S., Dwivedi, S., Ostrowski, E. T., Abe, S., Maan, A., van Duin, A. C. T., and Koel, B. E.

Subjects
COMPUTATIONAL chemistry, SURFACE chemistry, LITHIUM hydroxide, CHEMICAL reactions, CHEMICAL chains, COLLISION broadening
Abstract

We have investigated, using molecular dynamics, the surface chemistry of hydrogen incident on the amorphous and crystalline lithium oxide and lithium hydroxide surfaces upon being slowed down by a collision cascade and retained in the amorphous surface of either Li2O or LiOH. We looked for the bonding of H to the resident structures in the surface to understand a possible chain of chemical reactions that can lead to surface transformation upon H atom impact. Our findings, using Density-Functional Theory (DFT) trained ReaxFF force field/electronegativity equalization method potentials, stress the importance of inclusion of polarization in the dynamics of a Li–O–H system, which is also illustrated by DFT energy minimization and quantum–classical molecular dynamics using tight binding DFT. The resulting polar-covalent chemistry of the studied systems is complex and very sensitive to the instantaneous positions of all atoms as well as the ratio of concentrations of various resident atoms in the surface. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

15. KamLAND’s search for correlated low-energy electron antineutrinos with astrophysical neutrinos from IceCube

Author

Abe, S., Asami, S., Eizuka, M., Futagi, S., Gando, A., Gando, Y., Gima, T., Goto, A., Hachiya, T., Hata, K., Hosokawa, K., Ichimura, K., Ieki, S., Ikeda, H., Inoue, K., Ishidoshiro, K., Kamei, Y., Kawada, N., Kishimoto, Y., Kinoshita, T., Koga, M., Kurasawa, M., Maemura, N., Mitsui, T., Miyake, H., Nakahata, T., Nakamura, K., Nakamura, R., Ozaki, H., Sakai, T., Sambonsugi, H., Shimizu, I., Shirai, J., Shiraishi, K., Suzuki, A., Suzuki, Y., Takeuchi, A., Tamae, K., Watanabe, H., Yoshida, Y., Obara, S., Ichikawa, A.K., Yoshida, S., Umehara, S., Fushimi, K., Kotera, K., Urano, Y., Berger, B.E., Fujikawa, B.K., Learned, J.G., Maricic, J., Axani, S.N., Smolsky, J., Lertprasertpong, J., Winslow, L.A., Fu, Z., Ouellet, J., Efremenko, Y., Karwowski, H.J., Markoff, D.M., Tornow, W., Li, A., Detwiler, J.A., Enomoto, S., Decowski, M.P., Grant, C., Song, H., O’Donnell, T., and Dell’Oro, S.

Published
2022
Full Text
View/download PDF

17. Detailed studies of the processes in low energy H irradiation of Li and Li-compound surfaces.

Author

Krstic, P. S., Ostrowski, E. T., Dwivedi, S., Abe, S., Maan, A., van Duin, A. C. T., and Koel, B. E.

Subjects
COMPUTATIONAL physics, HYDROGEN isotopes, PLASMA confinement, LITHIUM compounds, HYDROGEN plasmas, SURFACE chemistry, IRRADIATION, HYDROGEN as fuel
Abstract

We have used a combination of pico-to-nano temporal/spatial scale computational physics and chemistry modeling of plasma–material interfaces in the tokamak fusion plasma edges to unravel the evolving characteristics, not readily accessible by empirical means, of lithium-, oxygen-, and hydrogen-containing materials of plasma-facing components under irradiation by hydrogen and its isotopes. In the present calculation, amorphous lithium compound surfaces containing oxygen, Li2O, and LiOH were irradiated by 1–100 eV particles at incident angles on the surface ranging from perpendicular to almost grazing angles. Consequential surface processes, reflection, retention, and sputtering were studied at "the same footing" and compared to earlier results from amorphous Li and LiH surfaces. The critical role of charging dynamics of lithium, oxygen, and hydrogen atoms in the surface chemistry during hydrogen-fuel irradiation was found to drive the kinetics and dynamics of these surfaces in unexpected ways that ultimately could have profound effects on fusion plasma confinement behavior and surface erosion. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

22. Assessment of genetic diversity and structure of Bambara groundnut [Vigna subterranea (L.) verdc.] landraces in South Africa

Author

Adré Minnaar-Ontong, Abe S. Gerrano, and Maryke T. Labuschagne

Subjects
Medicine, Science
Abstract

Abstract With its drought tolerant and protein-rich properties, Bambara groundnut [Vigna subterranea (L.) Verdc.], an indigenous African legume crop can contribute immensely to food security. This miracle crop is used as food and for the enhancement of soil fertility in South Africa. Knowledge on the genetic diversity and structure among the Bambara groundnut landraces can pave the way for the effective use and cultivation of this crop in southern Africa, especially South Africa. The aim of this study was to assess the genetic diversity and structure among Bambara groundnut landraces collected across South Africa and compared to a limited number of accessions from southern Africa using SSR markers. Seventy-eight Bambara groundnut accessions were genotyped using 19 Bambara specific SSR markers. SSR loci explored in this study, were all polymorphic. A total of 127 alleles were detected with a mean of 6.7 alleles per locus. Allele diversity and frequency among genotypes varied from 0.21 to 0.85 with an average of 0.62 per locus. Genetic variation as described by the analysis of molecular variance indicated higher genetic diversity (92%) within landraces than between (8%) different landraces. Population structure analysis showed that three subpopulations existed, and most of the South African accessions were restricted to one subpopulation, indicating that Bambara landraces has the ability to form unique haplotypes in different environments. Information harnessed in this study is helpful for further use in breeding programs for crop improvement.

Published
2021
Full Text
View/download PDF

23. Risk Perception of Septic Shock with Multiple Organ Failure Due to Acute Exacerbation of an Infectious Dental Disease

Author

Sato H, Tamanoi T, Suzuki T, Moriyama H, Abe S, Yoshida K, Kawaai H, and Yamazaki S

Subjects
elderly malnutrition, immunological deterioration, infectious dental disease, multiple organ failure, sepsis-associated disseminated intravascular coagulation, risk management, Therapeutics. Pharmacology, RM1-950
Abstract

Hikaru Sato, Takashi Tamanoi, Takuya Suzuki, Hikaru Moriyama, Shota Abe, Kenji Yoshida, Hiroyoshi Kawaai, Shinya Yamazaki Department of Dental Anesthesiology, Ohu University, School of Dentistry, Koriyama City, Fukushima Prefecture, JapanCorrespondence: Shinya YamazakiDepartment of Dental Anesthesiology, Ohu University, School of Dentistry, 31-1 Misumido, Tomita, Koriyama, Fukushima, 963-8611, JapanTel/Fax +81 24 932 9337Email zakiyama@ops.dti.ne.jpAbstract: In general dental conditions such as dental caries and periodontal disease, a combination of adverse conditions can cause potentially life-threatening periodontal abscess. We treated a patient in whom an oral infection developed into septic shock, resulting in patient death. A 78-year-old woman experienced spontaneous pain around a moving tooth. Pus discharge was observed, the area was sterilized, and an analgesic was prescribed. A few days later, the swelling spread to the buccal region leading to difficulty while eating. Upon systemic status and blood examination at our dental hospital, depressed consciousness due to dehydration and septic shock were suspected. Oxygenation and infusion of acetate linger with antibiotics were immediately performed. Furthermore, a blood examination revealed malnutrition and a severe infection; therefore, the patient was transferred to a nearby general hospital. However, the patient died the next day because of advanced disseminated intravascular coagulation and multiple organ failure. When an oral infection is suspected in an elderly patient, antibiotics should be quickly administered, the patient’s local and systemic state should be confirmed, and sterilization should be performed daily. If no improvement is observed, medical attention should be quickly sought.Keywords: elderly malnutrition, immunological deterioration, infectious dental disease, multiple organ failure, sepsis-associated disseminated intravascular coagulation, risk management

Published
2021

25. Thermally altered subsurface material of asteroid (162173) Ryugu

Author

Kitazato, K., Milliken, R. E., Iwata, T., Abe, M., Ohtake, M., Matsuura, S., Takagi, Y., Nakamura, T., Hiroi, T., Matsuoka, M., Riu, L., Nakauchi, Y., Tsumura, K., Arai, T., Senshu, H., Hirata, N., Barucci, M. A., Brunetto, R., Pilorget, C., Poulet, F., Bibring, J.-P., Domingue, D. L., Vilas, F., Takir, D., Palomba, E., Galiano, A., Perna, D., Osawa, T., Komatsu, M., Nakato, A., Arai, T., Takato, N., Matsunaga, T., Arakawa, M., Saiki, T., Wada, K., Kadono, T., Imamura, H., Yano, H., Shirai, K., Hayakawa, M., Okamoto, C., Sawada, H., Ogawa, K., Iijima, Y., Sugita, S., Honda, R., Morota, T., Kameda, S., Tatsumi, E., Cho, Y., Yoshioka, K., Yokota, Y., Sakatani, N., Yamada, M., Kouyama, T., Suzuki, H., Honda, C., Namiki, N., Mizuno, T., Matsumoto, K., Noda, H., Ishihara, Y., Yamada, R., Yamamoto, K., Yoshida, F., Abe, S., Higuchi, A., Yamamoto, Y., Okada, T., Shimaki, Y., Noguchi, R., Miura, A., Hirata, N., Tachibana, S., Yabuta, H., Ishiguro, M., Ikeda, H., Takeuchi, H., Shimada, T., Mori, O., Hosoda, S., Tsukizaki, R., Soldini, S., Ozaki, M., Terui, F., Ogawa, N., Mimasu, Y., Ono, G., Yoshikawa, K., Hirose, C., Fujii, A., Takahashi, T., Kikuchi, S., Takei, Y., Yamaguchi, T., Nakazawa, S., Tanaka, S., Yoshikawa, M., Watanabe, S., and Tsuda, Y.

Published
2021
Full Text
View/download PDF

26. Insights into the broadband emission of the TeV blazar Mrk 501 during the first X-ray polarization measurements.

Author

MAGIC Collaboration, Abe, S., Abhir, J., Acciari, V. A., Aguasca-Cabot, A., Agudo, I., Aniello, T., Ansoldi, S., Antonelli, L. A., Arbet Engels, A., Arcaro, C., Asano, K., Babić, A., Baquero, A., Barres de Almeida, U., Barrio, J. A., Batković, I., Bautista, A., Baxter, J., and Becerra González, J.

Subjects
*X-rays, *CRAB Nebula, *ELECTRON distribution, *BREWSTER'S angle, *GAMMA ray bursts, *OPTICAL polarization, *BL Lacertae objects, *LINEAR polarization, *SYNCHROTRONS
Abstract

Aims. We present the first multiwavelength study of Mrk 501 that contains simultaneous very-high-energy (VHE) γ-ray observations and X-ray polarization measurements from the Imaging X-ray Polarimetry Explorer (IXPE). Methods. We used radio-to-VHE data from a multiwavelength campaign carried out between March 1, 2022, and July 19, 2022 (MJD 59639 to MJD 59779). The observations were performed by MAGIC, Fermi-LAT, NuSTAR, Swift (XRT and UVOT), and several other instruments that cover the optical and radio bands to complement the IXPE pointings. We characterized the dynamics of the broadband emission around the X-ray polarization measurements through its multiband fractional variability and correlations, and compared changes observed in the polarization degree to changes seen in the broadband emission using a multi-zone leptonic scenario. Results. During the IXPE pointings, the VHE state is close to the average behavior, with a 0.2–1 TeV flux of 20%–50% of the emission of the Crab Nebula. Additionally, it shows low variability and a hint of correlation between VHE γ-rays and X-rays. Despite the average VHE activity, an extreme X-ray behavior is measured for the first two IXPE pointings, taken in March 2022 (MJD 59646 to 59648 and MJD 59665 to 59667), with a synchrotron peak frequency > 1 keV. For the third IXPE pointing, in July 2022 (MJD 59769 to 59772), the synchrotron peak shifts toward lower energies and the optical/X-ray polarization degrees drop. All three IXPE epochs show an atypically low Compton dominance in the γ-rays. The X-ray polarization is systematically higher than at lower energies, suggesting an energy stratification of the jet. While during the IXPE epochs the polarization angles in the X-ray, optical, and radio bands align well, we find a clear discrepancy in the optical and radio polarization angles in the middle of the campaign. Such results further support the hypothesis of an energy-stratified jet. We modeled broadband spectra taken simultaneous to the IXPE pointings, assuming a compact zone that dominates in the X-rays and the VHE band, and an extended zone stretching farther downstream in the jet that dominates the emission at lower energies. NuSTAR data allow us to precisely constrain the synchrotron peak and therefore the underlying electron distribution. The change between the different states observed in the three IXPE pointings can be explained by a change in the magnetization and/or the emission region size, which directly connects the shift in the synchrotron peak to lower energies with the drop in the polarization degree. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

27. Nintedanib in patients with progressive fibrosing interstitial lung diseases—subgroup analyses by interstitial lung disease diagnosis in the INBUILD trial: a randomised, double-blind, placebo-controlled, parallel-group trial

Author

Abe, S., Aburto, M., Acosta, O., Andrews, C., Antin-Ozerkis, D., Arce, G., Arias, M., Avdeev, S., Barczyk, A., Bascom, R., Bazdyrev, E., Beirne, P., Belloli, E., Bergna, M.A., Bergot, E., Bhatt, N., Blaas, S., Bondue, B., Bonella, F., Britt, E., Buch, K., Burk, J., Cai, H., Cantin, A., Castillo Villegas, D.M., Cazaux, A., Cerri, S., Chaaban, S., Chaudhuri, N., Cottin, V., Crestani, B., Criner, G., Dahlqvist, C., Danoff, S., Dematte D'Amico, J., Dilling, D., Elias, P., Ettinger, N., Falk, J., Fernández Pérez, E.R., Gamez-Dubuis, A., Giessel, G., Gifford, A., Glassberg, M., Glazer, C., Golden, J., Gómez Carrera, L., Guiot, J., Hallowell, R., Hayashi, H., Hetzel, J., Hirani, N., Homik, L., Hope-Gill, B., Hotchkin, D., Ichikado, K., Ilkovich, M., Inoue, Y., Izumi, S., Jassem, E., Jones, L., Jouneau, S., Kaner, R., Kang, J., Kawamura, T., Kessler, R., Kim, Y., Kishi, K., Kitamura, H., Kolb, M., Kondoh, Y., Kono, C., Koschel, D., Kreuter, M., Kulkarni, T., Kus, J., Lebargy, F., León Jiménez, A., Luo, Q., Mageto, Y., Maher, T.M., Makino, S., Marchand-Adam, S., Marquette, C., Martinez, R., Martínez, M., Maturana Rozas, R., Miyazaki, Y., Moiseev, S., Molina-Molina, M., Morrison, L., Morrow, L., Moua, T., Nambiar, A., Nishioka, Y., Nunes, H., Okamoto, M., Oldham, J., Otaola, M., Padilla, M., Park, J.S., Patel, N., Pesci, A., Piotrowski, W., Pitts, L., Poonyagariyagorn, H., Prasse, A., Quadrelli, S., Randerath, W., Refini, R., Reynaud-Gaubert, M., Riviere, F., Rodríguez Portal, J.A., Rosas, I., Rossman, M., Safdar, Z., Saito, T., Sakamoto, N., Salinas Fénero, M., Sauleda, J., Schmidt, S., Scholand, M.B., Schwartz, M., Shapera, S., Shlobin, O., Sigal, B., Silva Orellana, A., Skowasch, D., Song, J.W., Stieglitz, S., Stone, H., Strek, M., Suda, T., Sugiura, H., Takahashi, H., Takaya, H., Takeuchi, T., Thavarajah, K., Tolle, L., Tomassetti, S., Tomii, K., Valenzuela, C., Vancheri, C., Varone, F., Veeraraghavan, S., Villar, A., Weigt, S., Wemeau, L., Wuyts, W., Xu, Z., Yakusevich, V., Yamada, Y., Yamauchi, H., Ziora, D., Wells, Athol U, Flaherty, Kevin R, Brown, Kevin K, Inoue, Yoshikazu, Devaraj, Anand, Richeldi, Luca, Moua, Teng, Crestani, Bruno, Wuyts, Wim A, Stowasser, Susanne, Quaresma, Manuel, Goeldner, Rainer-Georg, Schlenker-Herceg, Rozsa, and Kolb, Martin

Published
2020
Full Text
View/download PDF

29. Search for charged excited states of dark matter with KamLAND-Zen

Author

Abe, S., Eizuka, M., Futagi, S., Gando, A., Gando, Y., Goto, S., Hachiya, T., Hata, K., Hosokawa, K., Ichimura, K., Ieki, S., Ikeda, H., Inoue, K., Ishidoshiro, K., Kamei, Y., Kawada, N., Kishimoto, Y., Koga, M., Kurasawa, M., Mitsui, T., Miyake, H., Morita, D., Nakahata, T., Nakajima, R., Nakamura, K., Nakamura, R., Nakane, J., Ozaki, H., Sakai, T., Shimizu, I., Shirai, J., Shiraishi, K., Shoji, R., Suzuki, A., Takeuchi, A., Tamae, K., Watanabe, H., Watanabe, K., Obara, S., Yoshida, S., Umehara, S., Fushimi, K., Kotera, K., Urano, Y., Ichikawa, A., Berger, B.E., Fujikawa, B.K., Learned, J.G., Maricic, J., Axani, S.N., Fu, Z., Smolsky, J., Winslow, L.A., Efremenko, Y., Karwowski, H.J., Markoff, D.M., Tornow, W., Dell'Oro, S., O'Donnell, T., Detwiler, J.A., Enomoto, S., Decowski, M.P., Weerman, K.M., Grant, C., Li, A., and Song, H.

Published
2024
Full Text
View/download PDF

30. Ultra-violet imaging of the night-time earth by EUSO-Balloon towards space-based ultra-high energy cosmic ray observations

Author

Abdellaoui, G., Abe, S., Adams, J.H., Jr., Ahriche, A., Allard, D., Allen, L., Alonso, G., Anchordoqui, L., Anzalone, A., Arai, Y., Asano, K., Attallah, R., Attoui, H., Ave Pernas, M., Bacholle, S., Bakiri, M., Baragatti, P., Barrillon, P., Bartocci, S., Bayer, J., Beldjilali, B., Belenguer, T., Belkhalfa, N., Bellotti, R., Belov, A., Belov, K., Benmessai, K., Bertaina, M., Biermann, P.L., Biktemerova, S., Bisconti, F., Blanc, N., Błȩcki, J., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bozzo, E., Briz, S., Bruno, A., Caballero, K.S., Cafagna, F., Campana, D., Capdevielle, J-N., Capel, F., Caramete, A., Caramete, L., Carlson, P., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Catalano, C., Catalano, O., Cellino, A., Chikawa, M., Chiritoi, G., Christl, M.J., Connaughton, V., Conti, L., Cordero, G., Cotto, G., Crawford, H.J., Cremonini, R., Csorna, S., Cummings, A., Dagoret-Campagne, S., de Castro, A.J., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Di Martino, M., Diaz Damian, A., Djemil, T., Dutan, I., Ebersoldt, A., Ebisuzaki, T., Engel, R., Eser, J., Fenu, F., Fernández-González, S., Ferrarese, S., Flamini, M., Fornaro, C., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujii, T., Fujimoto, J., Fukushima, M., Galeotti, P., García-Ortega, E., Garipov, G., Gascón, E., Genci, J., Giraudo, G., González Alvarado, C., Gorodetzky, P., Greg, R., Guarino, F., Guzmán, A., Hachisu, Y., Haiduc, M., Harlov, B., Haungs, A., Hernández Carretero, J., Hidber Cruz, W., Ikeda, D., Inoue, N., Inoue, S., Isgrò, F., Itow, Y., Jammer, T., Jeong, S., Joven, E., Judd, E.G., Jung, A., Jochum, J., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B.A., Kim, Jeong-Sook, Kim, Soon-Wook, Kleifges, M., Klimov, P.A., Kolev, D., Krantz, H., Kreykenbohm, I., Krizmanic, J.F., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., La Barbera, A., Lachaud, C., Lahmar, H., Lakhdari, F., Larsson, O., Lee, J., Licandro, J., López Campano, L., López, F., Maccarone, M.C., Mackovjak, S., Mahdi, M., Maravilla, D., Marcelli, L., Marcos, J.L., Marini, A., Marszał, W., Martens, K., Martín, Y., Martinez, O., Martucci, M., Masciantonio, G., Mase, K., Mastafa, M., Matev, R., Matthews, J.N., Mebarki, N., Medina-Tanco, G., Mendoza, M.A., Menshikov, A., Merino, A., Meseguer, J., Meyer, S.S., Mimouni, J., Miyamoto, H., Mizumoto, Y., Monaco, A., Morales de los Ríos, J.A., Moretto, C., Nagataki, S., Naitamor, S., Napolitano, T., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A.V., Orleański, P., Osteria, G., Pagliaro, A., Painter, W., Panasyuk, M.I., Panico, B., Parizot, E., Park, I.H., Pastircak, B., Patzak, T., Paul, T., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pindado, S., Piotrowski, L.W., Piraino, S., Placidi, L., Plebaniak, Z., Pliego, S., Pollini, A., Polonsky, Z., Popescu, E.M., Prat, P., Prévôt, G., Prieto, H., Puehlhofer, G., Putis, M., Rabanal, J., Radu, A.A., Reyes, M., Rezazadeh, M., Ricci, M., Rodríguez Frías, M.D., Ronga, F., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M.D., Sáez Cano, G., Sagawa, H., Sahnoune, Z., Saito, A., Sakaki, N., Salazar, H., Sanchez Balanzar, J.C., Sánchez, J.L., Santangelo, A., Sanz-Andrés, A., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, M., Schanz, T., Schieler, H., Scotti, V., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shimizu, H.M., Shinozaki, K., Shirahama, T., Spataro, B., Stan, I., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Talai, M.C., Tenzer, C., Thomas, S.B., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsenov, R., Tsunesada, Y., Tsuno, K., Tubbs, J., Turriziani, S., Uchihori, Y., Vaduvescu, O., Valdés-Galicia, J.F., Vallania, P., Vankova, G., Vigorito, C., Villaseñor, L., Vlcek, B., von Ballmoos, P., Vrabel, M., Wada, S., Watanabe, J., Watts, J., Jr., Weber, M., Weigand Muñoz, R., Weindl, A., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yang, J., Yano, H., Yashin, I.V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I.S., Zotov, M.Yu., and Zuccaro Marchi, A.

Published
2019
Full Text
View/download PDF

33. EUSO-TA – First results from a ground-based EUSO telescope

Author

Abdellaoui, G., Abe, S., Adams, J.H., Jr., Ahriche, A., Allard, D., Allen, L., Alonso, G., Anchordoqui, L., Anzalone, A., Arai, Y., Asano, K., Attallah, R., Attoui, H., Ave Pernas, M., Bacholle, S., Bakiri, M., Baragatti, P., Barrillon, P., Bartocci, S., Bayer, J., Beldjilali, B., Belenguer, T., Belkhalfa, N., Bellotti, R., Belov, A., Belov, K., Belz, J.W., Benmessai, K., Bertaina, M., Biermann, P.L., Biktemerova, S., Bisconti, F., Blanc, N., Blecki, J., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bozzo, E., Bruno, A., Caballero, K.S., Cafagna, F., Campana, D., Capdevielle, J-N., Capel, F., Caramete, A., Caramete, L., Carlson, P., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Catalano, O., Cellino, A., Chikawa, M., Chiritoi, G., Christl, M.J., Connaughton, V., Conti, L., Cordero, G., Cotto, G., Crawford, H.J., Cremonini, R., Csorna, S., Cummings, A., Dagoret-Campagne, S., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Di Martino, M., Djemil, T., Dutan, I., Ebersoldt, A., Ebisuzaki, T., Engel, R., Eser, J., Fenu, F., Fernández-González, S., Fernández-Soriano, J., Ferrarese, S., Flamini, M., Fornaro, C., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujii, T., Fujimoto, J., Fukushima, M., Galeotti, P., García-Ortega, E., Garipov, G., Gascón, E., Genci, J., Giraudo, G., González Alvarado, C., Gorodetzky, P., Greg, R., Guarino, F., Guzmán, A., Hachisu, Y., Haiduc, M., Harlov, B., Haungs, A., Hernández Carretero, J., Hidber Cruz, W., Ikeda, D., Inoue, N., Inoue, S., Isgrò, F., Itow, Y., Jammer, T., Jeong, S., Joven, E., Judd, E.G., Jung, A., Jochum, J., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B.A., Kim, Jeong-Sook, Kim, Soon-Wook, Kleifges, M., Klimov, P.A., Kolev, D., Krantz, H., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., La Barbera, A., Lachaud, C., Lahmar, H., Lakhdari, F., Larsson, O., Lee, J., Licandro, J., López Campano, L., Maccarone, M.C., Mackovjak, S., Mahdi, M., Maravilla, D., Marcelli, L., Marcos, J.L., Marini, A., Marszal, W., Martens, K., Martín, Y., Martinez, O., Martucci, M., Masciantonio, G., Mase, K., Mustafa, M., Matev, R., Matthews, J.N., Mebarki, N., Medina-Tanco, G., Mendoza, M.A., Menshikov, A., Merino, A., Meseguer, J., Meyer, S.S., Mimouni, J., Miyamoto, H., Mizumoto, Y., Monaco, A., Morales de los Ríos, J.A., Nagataki, S., Naitamor, S., Napolitano, T., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A.V., Orleański, P., Osteria, G., Pagliaro, A., Painter, W., Panasyuk, M.I., Panico, B., Parizot, E., Park, I.H., Pastircak, B., Patzak, T., Paul, T., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pindado, S., Piotrowski, L.W., Piraino, S., Placidi, L., Plebaniak, Z., Pliego, S., Pollini, A., Polonski, Z., Popescu, E.M., Prat, P., Prévôt, G., Prieto, H., Puehlhofer, G., Putis, M., Rabanal, J., Radu, A.A., Reyes, M., Rezazadeh, M., Ricci, M., Rodríguez Frías, M.D., Ronga, F., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M.D., Sáez Cano, G., Sagawa, H., Sahnoune, Z., Saito, A., Sakaki, N., Salazar, H., Sanchez Balanzar, J.C., Sánchez, J.L., Santangelo, A., Sanz-Andrés, A., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, M., Schanz, T., Schieler, H., Scotti, V., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shimizu, H.M., Shin, H.S., Shinozaki, K., Shirahama, T., Sokolsky, P., Spataro, B., Stan, I., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Talai, M.C., Tameda, Y., Tenzer, C., Thomas, S.B., Thomson, G.B., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsenov, R., Tsunesada, Y., Tsuno, K., Tubbs, J., Turriziani, S., Uchihori, Y., Vaduvescu, O., Valdés-Galicia, J.F., Vallania, P., Vankova, G., Vigorito, C., Villaseñor, L., Vlcek, B., von Ballmoos, P., Vrabel, M., Wada, S., Watanabe, J., Watts, J., Jr., Weber, M., Weigand Muñoz, R., Weindl, A., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yang, J., Yano, H., Yashin, I.V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I.S., Zotov, M.Yu., and Zuccaro Marchi, A.

Published
2018
Full Text
View/download PDF

34. Performance and first measurements of the MAGIC stellar intensity interferometer.

Author

Abe, S, Abhir, J, Acciari, V A, Aguasca-Cabot, A, Agudo, I, Aniello, T, Ansoldi, S, Antonelli, L A, Arbet Engels, A, Arcaro, C, Artero, M, Asano, K, Babić, A, Baquero, A, de Almeida, U Barres, Barrio, J A, Batković, I, Bautista, A, Baxter, J, and González, J Becerra

Subjects
*OPTICAL measurements, *MAGIC, *OPTICAL interferometers, *TELESCOPES, *CORRELATORS, *MEASUREMENT
Abstract

In recent years, a new generation of optical intensity interferometers has emerged, leveraging the existing infrastructure of Imaging Atmospheric Cherenkov Telescopes (IACTs). The MAGIC telescopes host the MAGIC-SII system (Stellar Intensity Interferometer), implemented to investigate the feasibility and potential of this technique on IACTs. After the first successful measurements in 2019, the system was upgraded and now features a real-time, dead-time-free, 4-channel, GPU-based correlator. These hardware modifications allow seamless transitions between MAGIC's standard very-high-energy gamma-ray observations and optical interferometry measurements within seconds. We establish the feasibility and potential of employing IACTs as competitive optical Intensity Interferometers with minimal hardware adjustments. The measurement of a total of 22 stellar diameters are reported, 9 corresponding to reference stars with previous comparable measurements, and 13 with no prior measurements. A prospective implementation involving telescopes from the forthcoming Cherenkov Telescope Array Observatory's Northern hemisphere array, such as the first prototype of its Large-Sized Telescopes, LST-1, is technically viable. This integration would significantly enhance the sensitivity of the current system and broaden the UV-plane coverage. This advancement would enable the system to achieve competitive sensitivity with the current generation of long-baseline optical interferometers over blue wavelengths. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

35. Estimates of global recycling coefficients for LTX-β discharges.

Author

Maan, A., Boyle, D. P., Majeski, R., Wilkie, G. J., Francisquez, M., Banerjee, S., Kaita, R., Maingi, R., LeBlanc, B. P., Abe, S., Jung, E., Perez, E., Capecchi, W., Ostrowski, E. T., Elliott, D. B., Hansen, C., Kubota, S., Soukhanovskii, V., and Zakharov, L.

Subjects
DISCHARGE coefficient, ELECTRON temperature, PLASMA temperature, LITHIUM, ION traps, FUSION reactor divertors
Abstract

We report the first observation of global recycling coefficient R near 0.5 in the Lithium Tokamak eXperiment-β (LTX-β), significantly below the minimum R previously reported in other devices. In a series of experiments with varied Li wall conditioning, estimates of the recycling coefficient have been made using a Lyman-α array and DEGAS2 modeling. A progressive reduction in Lyman-α emission with increased lithium and an increase in edge electron temperature are observed. It is also observed that with increasing Li coating thickness, the effective particle confinement time τ p * is reduced and approaches TRANSP calculated energy confinement time (τE), with τ p * near τ E , TRANSP for the lowest recycling coefficients. Edge temperatures approaching core plasma temperatures, first reported in LTX, can now be directly connected to estimates of the recycling coefficient and qualitatively agree with previous UEDGE simulations. The particle flux to the limiting surfaces appears to be significantly reduced in comparison with fluid scrape-off layer (SOL) models, indicating that a large fraction of the SOL ions are mirror trapped. SOL collisionality drops more than an order of magnitude below the banana regime boundary, indicating the importance of kinetic effects. Full-f 1x2v gyrokinetic simulations of SOL field lines with the GKEYLL code indicate that the fraction of ions trapped along field lines increases as collisionality drops, as a result of increased lithium evaporation. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

36. Effective prevention of sorafenib-related vascular damage induced adverse events and maintenance of hepatic function by dried bonito broth and histidine

Author

Sakai N, Kamimura K, Shinagawa-Kobayashi Y, Nagoya T, Niwa Y, Ko M, Setsu T, Sakamaki A, Yokoo T, Abe S, Kamimura H, Sugitani S, Yanagi M, and Terai S

Subjects
sorafenib, histidine, dried bonito broth, vascular area dimension, albumin, hepatocellular carcinoma, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Norihiro Sakai,1,* Kenya Kamimura,1,* Yoko Shinagawa-Kobayashi,1 Takuro Nagoya,1 Yusuke Niwa,1 Masayoshi Ko,1 Toru Setsu,1 Akira Sakamaki,1 Takeshi Yokoo,1 Satoshi Abe,1 Hiroteru Kamimura,1 Soichi Sugitani,2 Masahiko Yanagi,3 Shuji Terai11Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Niigata, Japan; 2Department of Gastroenterology, Murakami General Hospital, Murakami, Niigata, Japan; 3Department of Gastroenterology, Ojiya General Hospital, Ojiya, Niigata, Japan*These authors contributed equally to this workBackground: Sorafenib (SOR) is an anti-angiogenic chemotherapeutic that prolongs the survival rates of patients with hepatocellular carcinoma. However, SOR also damages normal vasculature and causes associated adverse events, including hand–foot syndrome and hypertension (HT). We previously reported in an animal study that vascular damage resulted in the narrowing of the normal vascular dimension area in medaka fish (Oryzias), and histidine (HIS), a major amino acid contained in dried bonito broth (DBB), prevented these changes. Therefore, in the study, we analyzed the effects of DBB and HIS on SOR-related vascular damages and associated adverse events in patients.Materials and methods: Three-dimensional (3D) vascular images of abdominal regions reconstituted from computed tomography were assessed to compare vascular diameter prior to and following SOR administration in groups receiving SOR monotherapy, DBB+SOR, and HIS+SOR. The clinical courses of hand–foot syndrome and HT and the toxicities of SOR in biochemical assays were monitored and compared between the groups. Correlations between hepatic function and SOR-related changes in the portal venous area dimension were also assessed.Results: SOR-related vascular damage revealed narrowing of the normal abdominal vasculature in the human body, which was monitored using 3D images. The damage was ameliorated by DBB and HIS, however, HIS had a more marked effect, particularly on the renal arteries and portal vein (PV). Maintenance of blood flow contributed to the maintenance of total cholesterol, prothrombin time, albumin (ALB), and renal functions. Changes in the 3D vascular area dimension of the PV and level of serum ALB were significantly correlated. The occurrences of the clinical symptoms of hand–foot syndrome and HT were lower in the DBB- and HIS-treated groups.Conclusion: Our results clearly demonstrate that DBB and HIS prevented SOR-related abdominal vascular damage and effectively maintained hepatic function, and prevented clinical symptoms and toxicity.Trial registration: This study was registered with the University Hospital Medical Information Network Clinical Trials Registry (UMIN000025937 and UMIN000026898).Keywords: sorafenib, histidine, dried bonito broth, vascular area dimension, albumin, hepatocellular carcinoma

Published
2019

37. Dentists should be more familiar with systemic management [Response To Letter]

Author

Sato H, Tamanoi T, Suzuki T, Moriyama H, Abe S, Yoshida K, Kawaai H, and Yamazaki S

Subjects
Therapeutics. Pharmacology, RM1-950
Abstract

Hikaru Sato, Takashi Tamanoi, Takuya Suzuki, Hikaru Moriyama, Shota Abe, Kenji Yoshida, Hiroyoshi Kawaai, Shinya Yamazaki Department of Dental Anesthesiology, Ohu University, School of Dentistry, Koriyama City, Fukushima Prefecture, JapanCorrespondence: Shinya YamazakiDepartment of Dental Anesthesiology, Ohu University, School of Dentistry, 31-1 Misumido, Tomita, Koriyama City, Fukushima Prefecture, 963-8611, JapanTel/Fax +81 24 932 9337Email zakiyama@ops.dti.ne.jp View the original paper by Dr Sato and colleagues This is in response to the Letter to the Editor

Published
2021

38. Energy, angle, and temperature dependencies of the sticking of D atoms on Li surfaces.

Author

Krstic, P. S., Abe, S., Schiltz-Rouse, E., Ostrowski, E. T., and Koel, B. E.

Subjects
*DEUTERIUM, *MOLECULAR dynamics, *ATOMS
Abstract

Detailed experimental and computational information on the response of lithium surfaces to irradiation by slow hydrogenic particles (ions, atoms, molecules) is sparse and mainly speculative. In this work, we present a computational study of the reflection and retention of deuterium (D) atoms at crystalline and amorphous lithium surfaces at 300 and 500 K, where the D atoms have an impact energy in the range of 0.025–5 eV and incident angles of 0° (perpendicular incidence) or 85° (near-grazing incidence). Classical molecular dynamics simulations are performed with the reactive bond-order force field (ReaxFF) potentials. This study provides quantitative information on the deuterium sticking probability and recycling coefficient for lithium surfaces. Our results support the ongoing work at the Lithium Tokamak eXperiment-β fusion experiment as well as relevant experiments in the laboratory setting. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

42. Touchdown of the Hayabusa Spacecraft at the Muses Sea on Itokawa

Author

Yano, Hajime, Kubota, T., Miyamoto, H., Okada, T., Scheeres, D., Takagi, Y., Yoshida, K., Abe, M., Abe, S., Barnouin-Jha, O., Fujiwara, A., Hasegawa, S., Hashimoto, T., Ishiguro, M., Kato, M., Kawaguchi, J., Mukai, T., Saito, J., Sasaki, S., and Yoshikawa, M.

Published
2006

44. Prognostic value of subcutaneous adipose tissue volume in hepatocellular carcinoma treated with transcatheter intra-arterial therapy

Author

Kobayashi T, Kawai H, Nakano O, Abe S, Kamimura H, Sakamaki A, Kamimura K, Tsuchiya A, Takamura M, Yamagiwa S, and Terai S

Subjects
hepatocellular carcinoma, subcutaneous adipose tissue, transcatheter arterial chemoembolization, transcatheter arterial infusion chemotherapy, prognosis, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Takamasa Kobayashi, Hirokazu Kawai, Oki Nakano, Satoshi Abe, Hiroteru Kamimura, Akira Sakamaki, Kenya Kamimura, Atsunori Tsuchiya, Masaaki Takamura, Satoshi Yamagiwa,† Shuji Terai Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan †Dr Satoshi Yamagiwa passed away on May 4, 2018 Background: Prognosis of patients with hepatocellular carcinoma (HCC) who undergo transcatheter intra-arterial therapies, including transcatheter arterial chemoembolization and transcatheter arterial infusion chemotherapy, is affected by many clinical factors including liver function and tumor progression. However, the effect of body composition such as skeletal muscle and visceral and subcutaneous adipose tissues (VAT and SAT, respectively) on the prognosis of these patients remains unclear. We investigated the prognostic value of body composition in HCC patients treated with transcatheter intra-arterial therapies. Patients and methods: This study retrospectively evaluated 100 HCC patients treated with transcatheter intra-arterial therapies between 2005 and 2015. Areas of skeletal muscle, VAT, and SAT were measured on computed tomography images at third lumbar vertebra level and normalized by the height squared to calculate the skeletal muscle index, VAT index, and SAT index (SATI). The visceral to subcutaneous adipose tissue area ratio was also calculated. Overall survival (OS) was compared between high- and low-index groups for each body composition. Furthermore, prognostic significance was assessed by univariate and multivariate analyses using Cox proportional hazards models. Results: Among the body composition indexes, only SATI could significantly differentiate OS (p=0.012). Multivariate analysis showed that SATI (low- vs. high-SATI: HR, 2.065; 95% CI, 1.187–3.593; p=0.010), serum albumin (

Published
2018

45. Effective prevention of sorafenib-induced hand–foot syndrome by dried-bonito broth

Author

Kamimura K, Shinagawa-Kobayashi Y, Goto R, Ogawa K, Yokoo T, Sakamaki A, Abe S, Hiroteru Kamimura, Suda T, Baba H, Tanaka T, Nozawa Y, Koyama N, Takamura M, Kawai H, Yamagiwa S, Aoyagi Y, and Terai S

Subjects
sorafenib, hepatocellular carcinoma, hand-foot syndrome, blood flow, bonito broth, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Kenya Kamimura,1 Yoko Shinagawa-Kobayashi,1 Ryo Goto,1 Kohei Ogawa,1 Takeshi Yokoo,1 Akira Sakamaki,1 Satoshi Abe,1 Hiroteru Kamimura,1 Takeshi Suda,2 Hiroshi Baba,3 Takayuki Tanaka,4 Yoshizu Nozawa,5 Naoto Koyama,6 Masaaki Takamura,1 Hirokazu Kawai,1 Satoshi Yamagiwa,1 Yutaka Aoyagi,1 Shuji Terai1 1Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Niigata, Japan; 2Department of Gastroenterology and Hepatology, Uonuma Institute of Community Medicine, Niigata Medical and Dental Hospital, Minami-Uonuma, Niigata, Japan; 3Division of Anesthesiology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Niigata, Japan; 4Uonuma Eye Clinic, Uonuma, Niigata, Japan; 5Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kawasaki, Kanagawa, Japan; 6Institute for Innovation, Ajinomoto Co., Inc., Kawasaki, Kanagawa, Japan Background: Sorafenib (SOR) is a molecular medicine that prolongs the survival of patients with hepatocellular carcinoma (HCC). Therefore, the management of side effects is essential for the longer period of continuous medication. Among the various side effects, hand–foot syndrome (HFS) is the most common, occurring in 30%–50% of patients, and often results in discontinuation of the SOR medication. However, its mechanism has not been clarified, and no effective prevention method has been reported for the symptoms. Therefore, this study aimed to analyze its mechanism and to develop an effective prevention regimen for the symptoms. Materials and methods: To assess the mechanism of SOR-induced HFS, the peripheral blood flow in the hand and foot was carefully monitored by Doppler ultrasound, thermography, and laser speckle flowgraphy in the cases treated with SOR and its contribution was assessed. Then, the effect of dried-bonito broth (DBB), which was reported to improve peripheral blood flow, on the prevention of the symptom was examined by monitoring its occurrence and the peripheral blood flow. Results: A total of 25 patients were enrolled in this study. In all, eight patients developed HFS, and all cases showed a significant decrease in the peripheral blood flow. DBB contributed to an increase in the flow (p = 0.009) and significantly decreased occurrence of HFS (p = 0.005) than control. Multivariable analysis showed that the ingestion of DBB is a significant independent contributor to HFS-free survival period (p = 0.035). Conclusion: The mechanism of SOR-induced HFS involves a decrease in the peripheral blood flow, and the ingestion of DBB effectively prevents the development of the syndrome by maintaining the flow. Keywords: sorafenib, hepatocellular carcinoma, hand–foot syndrome, blood flow, bonito broth

Published
2018

46. Cosmic ray oriented performance studies for the JEM-EUSO first level trigger

Author

Abdellaoui, G., Abe, S., Acheli, A., Adams, J.H., Jr., Ahmad, S., Ahriche, A., Albert, J.-N., Allard, D., Alonso, G., Anchordoqui, L., Andreev, V., Anzalone, A., Aouimeur, W., Arai, Y., Arsene, N., Asano, K., Attallah, R., Attoui, H., Ave Pernas, M., Bacholle, S., Bakiri, M., Baragatti, P., Barrillon, P., Bartocci, S., Batsch, T., Bayer, J., Bechini, R., Belenguer, T., Bellotti, R., Belov, A., Belov, K., Benadda, B., Benmessai, K., Berlind, A.A., Bertaina, M., Biermann, P.L., Biktemerova, S., Bisconti, F., Blanc, N., Błȩcki, J., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bonamente, M., Boudaoud, R., Bozzo, E., Briggs, M.S., Bruno, A., Caballero, K.S., Cafagna, F., Campana, D., Capdevielle, J.-N., Capel, F., Caramete, A., Caramete, L., Carlson, P., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Castellini, G., Catalano, C., Catalano, O., Cellino, A., Chikawa, M., Chiritoi, G., Christl, M.J., Connaughton, V., Conti, L., Contino, G., Cordero, G., Cotto, G., Crawford, H.J., Cremonini, R., Csorna, S., Dagoret-Campagne, S., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Di Martino, M., Djemil, T., Djenas, S.A., Dulucq, F., Dupieux, M., Dutan, I., Ebersoldt, A., Ebisuzaki, T., Engel, R., Eser, J., Fang, K., Fenu, F., Fernández-González, S., Fernández-Soriano, J., Ferrarese, S., Finco, D., Flamini, M., Fornaro, C., Forza, R., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujimoto, J., Fukushima, M., Galeotti, P., García-Ortega, E., Garipov, G., Gascón, E., Geary, J., Gelmini, G., Genci, J., Giraudo, G., Gonchar, M., González Alvarado, C., Gorodetzky, P., Guardone, N., Guarino, F., Guehaz, R., Guzmán, A., Hachisu, Y., Haiduc, M., Harlov, B., Haungs, A., Hernández Carretero, J., Hidber, W., Higashide, K., Ikeda, D., Ikeda, H., Inoue, N., Inoue, S., Insolia, A., Isgrò, F., Itow, Y., Jammer, T., Joven, E., Judd, E.G., Jung, A., Jochum, J., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Kang, D., Kanouni, F., Karadzhov, Y., Karczmarczyk, J., Karus, M., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B.A., Kim, Jeong-Sook, Kim, Soon-Wook, Kim, Sug-Whan, Kleifges, M., Klimov, P.A., Kolev, D., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lacombe, M., Lachaud, C., Lahmar, H., Lakhdari, F., Larsson, O., Lee, J., Licandro, J., Lim, H., López Campano, L., Maccarone, M.C., Mackovjak, S., Mahdi, M., Manfrin, M., Maravilla, D., Marcelli, L., Marcos, J.L., Marini, A., Martens, K., Martín, Y., Martinez, O., Masciantonio, G., Mase, K., Matev, R., Matthews, J.N., Mebarki, N., Medina-Tanco, G., Mehrad, L., Mendoza, M.A., Merino, A., Mernik, T., Meseguer, J., Messaoud, S., Micu, O., Mignone, M., Mimouni, J., Miyamoto, H., Miyazaki, Y., Mizumoto, Y., Modestino, G., Monaco, A., Monnier-Ragaigne, D., Morales de los Ríos, J.A., Moretto, C., Morozenko, V.S., Mot, B., Murakami, T., Nadji, B., Nagano, M., Nagata, M., Nagataki, S., Nakamura, T., Napolitano, T., Naumov, D., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A.V., Orleański, P., Osteria, G., Painter, W., Panasyuk, M.I., Panico, B., Parizot, E., Park, I.H., Park, H.W., Pastircak, B., Patzak, T., Paul, T., Pennypacker, C., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pierog, T., Pindado, S., Piotrowski, L.W., Piraino, S., Placidi, L., Plebaniak, Z., Pliego, S., Pollini, A., Popescu, E.M., Prat, P., Prévôt, G., Prieto, H., Putis, M., Rabanal, J., Radu, A.A., Rahmani, M., Reardon, P., Reyes, M., Rezazadeh, M., Ricci, M., Rodríguez Frías, M.D., Ronga, F., Roth, M., Rothkaehl, H., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M.D., Sáez Cano, G., Sagawa, H., Sahnoune, Z., Saito, A., Sakaki, N., Sakata, M., Salazar, H., Sanchez, J.C., Sánchez, J.L., Santangelo, A., Santiago Crúz, L., Sanz-Andrés, A., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, H., Sato, M., Schanz, T., Schieler, H., Scotti, V., Segreto, A., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shibata, T., Shimizu, H.M., Shinozaki, K., Shirahama, T., Siemieniec-Oziȩbło, G., Sledd, J., Słomińska, K., Sobey, A., Stan, I., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tahi, H., Tajima, F., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Talai, M.C., Tenzer, C., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsenov, R., Tsunesada, Y., Tsuno, K., Tymieniecka, T., Uchihori, Y., Unger, M., Vaduvescu, O., Valdés-Galicia, J.F., Vallania, P., Vankova, G., Vigorito, C., Villaseñor, L., Vlcek, B., von Ballmoos, P., Vrabel, M., Wada, S., Watanabe, J., Watanabe, S., Watts, J., Jr., Weber, M., Weigand Muñoz, R., Weindl, A., Weiler, T.J., Wibig, T., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yamamoto, Y., Yang, J., Yano, H., Yashin, I.V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I.S., Zotov, M.Yu., and Zuccaro Marchi, A.

Published
2017
Full Text
View/download PDF

48. MAGIC detection of GRB 201216C at z = 1.1.

Author

Abe, H, Abe, S, Acciari, V A, Agudo, I, Aniello, T, Ansoldi, S, Antonelli, L A, Engels, A Arbet, Arcaro, C, Artero, M, Asano, K, Baack, D, Babić, A, Baquero, A, de Almeida, U Barres, Barrio, J A, Batković, I, Baxter, J, González, J Becerra, and Bednarek, W

Subjects
*ELECTROMAGNETIC radiation, *ELECTROMAGNETIC waves, *GAMMA ray bursts, *COSMOLOGICAL distances, *ENERGY bands, *MAGIC
Abstract

Gamma-ray bursts (GRBs) are explosive transient events occurring at cosmological distances, releasing a large amount of energy as electromagnetic radiation over several energy bands. We report the detection of the long GRB 201216C by the MAGIC telescopes. The source is located at z  = 1.1 and thus it is the farthest one detected at very high energies. The emission above 70 GeV of GRB 201216C is modelled together with multiwavelength data within a synchrotron and synchrotron self-Compton (SSC) scenario. We find that SSC can explain the broad-band data well from the optical to the very-high-energy band. For the late-time radio data, a different component is needed to account for the observed emission. Differently from previous GRBs detected in the very-high-energy range, the model for GRB 201216C strongly favours a wind-like medium. The model parameters have values similar to those found in past studies of the afterglows of GRBs detected up to GeV energies. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

49. Multi-year characterisation of the broad-band emission from the intermittent extreme BL Lac 1ES 2344+514.

Author

Abe, H., Abe, S., Acciari, V. A., Agudo, I., Aniello, T., Ansoldi, S., Antonelli, L. A., Arbet Engels, A., Arcaro, C., Artero, M., Asano, K., Baack, D., Babić, A., Baquero, A., Barres de Almeida, U., Batković, I., Baxter, J., Becerra González, J., Bernardini, E., and Bernete, J.

Subjects
*SPECTRAL energy distribution, *X-ray spectra, *HARD X-rays, *BL Lacertae objects
Abstract

Aims. The BL Lac 1ES 2344+514 is known for temporary extreme properties characterised by a shift of the synchrotron spectral energy distribution (SED) peak energy νsynch, p above 1 keV. While those extreme states have only been observed during high flux levels thus far, additional multi-year observing campaigns are required to achieve a coherent picture. Here, we report the longest investigation of the source from radio to very high energy (VHE) performed so far, focussing on a systematic characterisation of the intermittent extreme states. Methods. We organised a monitoring campaign covering a 3-year period from 2019 to 2021. More than ten instruments participated in the observations in order to cover the emission from radio to VHE. In particular, sensitive X-ray measurements by XMM-Newton, NuSTAR, and AstroSat took place simultaneously with multi-hour MAGIC observations, providing an unprecedented constraint of the two SED components for this blazar. Results. While our results confirm that 1ES 2344+514 typically exhibits νsynch, p > 1 keV during elevated flux periods, we also find periods where the extreme state coincides with low flux activity. A strong spectral variability thus happens in the quiescent state, and is likely caused by an increase in the electron acceleration efficiency without a change in the electron injection luminosity. On the other hand, we also report a strong X-ray flare (among the brightest for 1ES 2344+514) without a significant shift of νsynch, p. During this particular flare, the X-ray spectrum is among the softest of the campaign. It unveils complexity in the spectral evolution, where the common harder-when-brighter trend observed in BL Lacs is violated. By combining Swift-XRT and Swift-UVOT measurements during a low and hard X-ray state, we find an excess of the UV flux with respect to an extrapolation of the X-ray spectrum to lower energies. This UV excess implies that at least two regions significantly contribute to the infrared/optical/ultraviolet/X-ray emission. Using the simultaneous MAGIC, XMM-Newton, NuSTAR, and AstroSat observations, we argue that a region possibly associated with the 10 GHz radio core may explain such an excess. Finally, we investigate a VHE flare, showing an absence of simultaneous variability in the 0.3−2 keV band. Using time-dependent leptonic modelling, we show that this behaviour, in contradiction to single-zone scenarios, can instead be explained by a two-component model. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results