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1. Altered Spontaneous Brain Activity Patterns in Patients After Lasik Surgery Using Amplitude of Low-Frequency Fluctuation: A Resting-State Functional MRI Study

Author

Yu YJ, Liang RB, Yang QC, Ge QM, Li QY, Li B, Shi WQ, and Shao Y

Subjects
resting-state functional mri, genetic structures, Neurosciences. Biological psychiatry. Neuropsychiatry, myopia, lasik, Neurology. Diseases of the nervous system, RC346-429, amplitude of low-frequency, eye diseases, RC321-571
Abstract

Ya-Jie Yu,1,* Rong-Bin Liang,1,* Qi-Chen Yang,2,* Qian-Min Ge,1 Qiu-Yu Li,1 Biao Li,1 Wen-Qing Shi,1 Yi Shao1 1Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People’s Republic of China; 2Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong 999077, People’s Republic of China*These authors contributed equally to this workCorrespondence: Yi Shao Tel/ Fax +86 791-88692520Email freebee99@163.comObjective: Previous studies demonstrated that myopia could result in alterations of brain activity in specific areas. However, whether the visual function could improve by Lasik surgery, with the brain activity alterations also change, is still unknown. Here, we intended to use the amplitude of low-frequency fluctuation (ALFF) technique to investigate the intrinsic brain activity changes in pre-Lasik (PRL) and post-Lasik (POL) patients.Methods: A total of 15 patients with myopia (nine male and six female) were recruited in our study, who were matched according to age, weight, and height. These patients comprised both the PRL and POL groups, which is self-controlled. The patients all underwent resting-state functional magnetic resonance imaging (MRI), and the spontaneous brain activity changes were recorded by the ALFF technique. The data were recorded and arranged in the receiver operating characteristic (ROC) curve, which presented how intrinsic activities altered in different brain regions. Moreover, by Graphpad prism 8, we can analyze the linear correlation between HADS (Hospital Anxiety and Depression Scale) and ALFF values as well.Results: Differences in ALFF values existed in brain regions between the same patient before and after the Lasik operation. The regions with increased ALFF values after Lasik surgery were the left parahippocampal gyrus, cerebellar vermis, and left posterior cingulate cortex. The regions with decreased ALFF values after Lasik surgery were the left supramarginal gyrus and right trigonometric inferior frontal gyrus.Conclusion: We demonstrated significant fluctuations of ALFF values in specific brain areas between the same patients before and after the Lasik surgery. The altered ALFF values reflected the hyperactivity or hypoactivity of the specific brain areas, which may help predict the recovery level of patients’ vision after Lasik surgery. Furthermore, based on the experimental results that presented significant activity alterations in specific brian regions, patients could be speculated equipped with a better visual function.Keywords: myopia, Lasik, resting-state functional MRI, amplitude of low-frequency fluctuation

Published
2020

2. Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station

Author

Aguilar, M, Aisa, D, Alvino, A, Ambrosi, Giovanni, Andeen, K, Arruda, L, Attig, N, Azzarello, P, Bachlechner, A, Barao, F, Barrau, A, Barrin, L, Bartoloni, A, Basara, L, Battarbee, M, Battiston, R, Bazo, J, Becker, U, Behlmann, M, Beischer, B, Berdugo, J, Bertucci, Bruna, Bigongiari, G, Bindi, V, Bizzaglia, S, Bizzarri, M, Boella, G, de Boer, W, Bollweg, K, Bonnivard, V, Borgia, B, Borsini, S, Boschini, Mj, Bourquin, M, Burger, J, Cadoux, F, Cai, Xd, Capell, M, Caroff, S, Casaus, J, Cascioli, V, Castellini, G, Cernuda, I, Cervelli, F, Chae, Mj, Chang, Yh, Chen, Ai, Chen, H, Cheng, Gm, Chen, Hs, Cheng, L, Chikanian, A, Chou, Hy, Choumilov, E, Choutko, V, Chung, Ch, Clark, C, Clavero, R, Coignet, G, Consolandi, C, Contin, A, Corti, C, Coste, B, Cui, Z, Dai, M, Delgado, C, Della Torre, S, Demirköz, Mb, Derome, L, Di Falco, S, Di Masso, L, Dimiccoli, F, Díaz, C, von Doetinchem, P, Du, Wj, Duranti, Matteo, D'Urso, D, Eline, A, Eppling, Fj, Eronen, T, Fan, Yy, Farnesini, L, Feng, J, Fiandrini, Emanuele, Fiasson, A, Finch, E, Fisher, P, Galaktionov, Y, Gallucci, G, García, B, García López, R, Gast, H, Gebauer, I, Gervasi, M, Ghelfi, A, Gillard, W, Giovacchini, F, Goglov, P, Gong, J, Goy, C, Grabski, V, Grandi, D, Graziani, Maura, Guandalini, C, Guerri, I, Guo, Kh, Habiby, M, Haino, S, Han, Kc, He, Zh, Heil, M, Hoffman, J, Hsieh, Th, Huang, Zc, Huh, C, Incagli, M, Ionica, Maria, Jang, Wy, Jinchi, H, Kanishev, K, Kim, Gn, Kim, Ks, Kirn, T, Kossakowski, R, Kounina, O, Kounine, A, Koutsenko, V, Krafczyk, Ms, Kunz, S, La Vacca, G, Laudi, E, Laurenti, G, Lazzizzera, I, Lebedev, A, Lee, Ht, Lee, Sc, Leluc, C, Li, Hl, Li, Jq, Li, Q, Li, Tx, Li, W, Li, Y, Li, Zh, Li, Zy, Lim, S, Lin, Ch, Lipari, P, Lippert, T, Liu, D, Liu, H, Lomtadze, T, Lu, Mj, Lu, Ys, Luebelsmeyer, K, Luo, F, Luo, Jz, Lv, Ss, Majka, R, Malinin, A, Mañá, C, Marín, J, Martin, T, Martínez, G, Masi, N, Maurin, D, Menchaca Rocha, A, Meng, Q, Mo, Dc, Morescalchi, L, Mott, P, Müller, M, Ni, Jq, Nikonov, N, Nozzoli, F, Nunes, P, Obermeier, A, Oliva, A, Orcinha, M, Palmonari, F, Palomares, C, Paniccia, M, Papi, A, Pedreschi, E, Pensotti, S, Pereira, R, Pilo, F, Piluso, A, Pizzolotto, C, Plyaskin, V, Pohl, M, Poireau, V, Postaci, E, Putze, A, Quadrani, L, Qi, Xm, Rancoita, Pg, Rapin, D, Ricol, Js, Rodríguez, I, Rosier Lees, S, Rozhkov, A, Rozza, D, Sagdeev, R, Sandweiss, J, Saouter, P, Sbarra, C, Schael, S, Schmidt, Sm, Schuckardt, D, von Dratzig AS, Schwering, G, Scolieri, G, Seo, Es, Shan, Bs, Shan, Yh, Shi, Jy, Shi, Xy, Shi, Ym, Siedenburg, T, Son, D, Spada, F, Spinella, F, Sun, W, Sun, Wh, Tacconi, M, Tang, Cp, Tang, Xw, Tang, Zc, Tao, L, Tescaro, D, Ting, Sc, Ting, Sm, Tomassetti, Nicola, Torsti, J, Türkoğlu, C, Urban, T, Vagelli, Valerio, Valente, E, Vannini, C, Valtonen, E, Vaurynovich, S, Vecchi, M, Velasco, M, Vialle, Jp, Wang, Lq, Wang, Ql, Wang, Rs, Wang, X, Wang, Zx, Weng, Zl, Whitman, K, Wienkenhöver, J, Wu, H, Xia, X, Xie, M, Xie, S, Xiong, Rq, Xin, Gm, Xu, Ns, Xu, W, Yan, Q, Yang, J, Yang, M, Ye, Qh, Yi, H, Yu, Yj, Yu, Zq, Zeissler, S, Zhang, Jh, Zhang, Mt, Zhang, Xb, Zhang, Z, Zheng, Zm, Zhuang, Hl, Zhukov, V, Zichichi, A, Zimmermann, N, Zuccon, P, Zurbach, C, Pauluzzi, Michele, Azzarello, Philipp, Bourquin, Maurice, Cadoux, Franck, Habiby Alaoui, Marion, Leluc, Catherine, Li, Yang, Paniccia, Mercedes, Pohl, Martin, Rapin, Divic Jean, Saouter, Pierre, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (INFN, Sezione di Perugia), Istituto Nazionale di Fisica Nucleare (INFN), Institute of Nanotechnology [Karlsruhe] (INT), Karlsruhe Institute of Technology (KIT), Jülich Aachen Research Alliance (JARA), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), CERN [Genève], Istituto Nazionale di Fisica Nucleare, Sezione di Roma 3 (INFN, Sezione di Roma 3), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), University of Turku, Università degli Studi di Trento (UNITN), Department of Applied Mathematics (MIT), Massachusetts Institute of Technology (MIT), INFN Sezione di Pisa (INFN Sezione di Pisa), University of Hawai'i [Honolulu] (UH), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Karlsruher Institut für Technologie (KIT), NASA Johnson Space Center (JSC), NASA, Département de Physique Nucléaire et Corpusculaire [Genève] (DPNC), Université de Genève (UNIGE), CNR Istituto di Geoscienze e Georisorse [Firenze] (IGG), Consiglio Nazionale delle Ricerche (CNR), University of Pisa - Università di Pisa, EWHA Womans University (EWHA), National Central University [Taiwan] (NCU), Institute of High Energy Physics (IHEP), Chinese Academy of Sciences [Changchun Branch] (CAS), Shandong University, Yale University [New Haven], Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (INFN, Sezione di Bologna), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), AMS, Aguilar, M, Aisa, D, Alvino, A, Ambrosi, G, Andeen, K, Arruda, L, Attig, N, Azzarello, P, Bachlechner, A, Barao, F, Barrau, A, Barrin, L, Bartoloni, A, Basara, L, Battarbee, M, Battiston, R, Bazo, J, Becker, U, Behlmann, M, Beischer, B, Berdugo, J, Bertucci, B, Bigongiari, G, Bindi, V, Bizzaglia, S, Bizzarri, M, Boella, G, de Boer, W, Bollweg, K, Bonnivard, V, Borgia, B, Borsini, S, Boschini, M, Bourquin, M, Burger, J, Cadoux, F, Cai, X, Capell, M, Caroff, S, Casaus, J, Cascioli, V, Castellini, G, Cernuda, I, Cervelli, F, Chae, M, Chang, Y, Chen, A, Chen, H, Cheng, G, Cheng, L, Chikanian, A, Chou, H, Choumilov, E, Choutko, V, Chung, C, Clark, C, Clavero, R, Coignet, G, Consolandi, C, Contin, A, Corti, C, Coste, B, Cui, Z, Dai, M, Delgado, C, Della Torre, S, Demirköz, M, Derome, L, Di Falco, S, Di Masso, L, Dimiccoli, F, Díaz, C, von Doetinchem, P, Du, W, Duranti, M, D’Urso, D, Eline, A, Eppling, F, Eronen, T, Fan, Y, Farnesini, L, Feng, J, Fiandrini, E, Fiasson, A, Finch, E, Fisher, P, Galaktionov, Y, Gallucci, G, García, B, García López, R, Gast, H, Gebauer, I, Gervasi, M, Ghelfi, A, Gillard, W, Giovacchini, F, Goglov, P, Gong, J, Goy, C, Grabski, V, Grandi, D, Graziani, M, Guandalini, C, Guerri, I, Guo, K, Habiby, M, Haino, S, Han, K, He, Z, Heil, M, Hoffman, J, Hsieh, T, Huang, Z, Huh, C, Incagli, M, Ionica, M, Jang, W, Jinchi, H, Kanishev, K, Kim, G, Kim, K, Kirn, T, Kossakowski, R, Kounina, O, Kounine, A, Koutsenko, V, Krafczyk, M, Kunz, S, LA VACCA, G, Laudi, E, Laurenti, G, Lazzizzera, I, Lebedev, A, Lee, H, Lee, S, Leluc, C, Li, H, Li, J, Li, Q, Li, T, Li, W, Li, Y, Li, Z, Lim, S, Lin, C, Lipari, P, Lippert, T, Liu, D, Liu, H, Lomtadze, T, Lu, M, Lu, Y, Luebelsmeyer, K, Luo, F, Luo, J, Lv, S, Majka, R, Malinin, A, Mañá, C, Marín, J, Martin, T, Martínez, G, Masi, N, Maurin, D, Menchaca Rocha, A, Meng, Q, Mo, D, Morescalchi, L, Mott, P, Müller, M, Ni, J, Nikonov, N, Nozzoli, F, Nunes, P, Obermeier, A, Oliva, A, Orcinha, M, Palmonari, F, Palomares, C, Paniccia, M, Papi, A, Pedreschi, E, Pensotti, S, Pereira, R, Pilo, F, Piluso, A, Pizzolotto, C, Plyaskin, V, Pohl, M, Poireau, V, Postaci, E, Putze, A, Quadrani, L, Qi, X, Rancoita, P, Rapin, D, Ricol, J, Rodríguez, I, Rosier Lees, S, Rozhkov, A, Rozza, D, Sagdeev, R, Sandweiss, J, Saouter, P, Sbarra, C, Schael, S, Schmidt, S, Schuckardt, D, von Dratzig, A, Schwering, G, Scolieri, G, Seo, E, Shan, B, Shan, Y, Shi, J, Shi, X, Shi, Y, Siedenburg, T, Son, D, Spada, F, Spinella, F, Sun, W, Tacconi, M, Tang, C, Tang, X, Tang, Z, Tao, L, Tescaro, D, Ting, S, Tomassetti, N, Torsti, J, Türkoğlu, C, Urban, T, Vagelli, V, Valente, E, Vannini, C, Valtonen, E, Vaurynovich, S, Vecchi, M, Velasco, M, Vialle, J, Wang, L, Wang, Q, Wang, R, Wang, X, Wang, Z, Weng, Z, Whitman, K, Wienkenhöver, J, Wu, H, Xia, X, Xie, M, Xie, S, Xiong, R, Xin, G, Xu, N, Xu, W, Yan, Q, Yang, J, Yang, M, Ye, Q, Yi, H, Yu, Y, Yu, Z, Zeissler, S, Zhang, J, Zhang, M, Zhang, X, Zhang, Z, Zheng, Z, Zhuang, H, Zhukov, V, Zichichi, A, Zimmermann, N, Zuccon, P, Zurbach, C, M. Aguilar, D. Aisa, A. Alvino, G. Ambrosi, K. Andeen, L. Arruda, N. Attig, P. Azzarello, A. Bachlechner, F. Barao, A. Barrau, L. Barrin, A. Bartoloni, L. Basara, M. Battarbee, R. Battiston, J. Bazo, U. Becker, M. Behlmann, B. Beischer, J. Berdugo, B. Bertucci, G. Bigongiari, V. Bindi, S. Bizzaglia, M. Bizzarri, G. Boella, W. d. Boer, K. Bollweg, V. Bonnivard, B. Borgia, S. Borsini, M. J. Boschini, M. Bourquin, J. Burger, F. Cadoux, X. D. Cai, M. Capell, S. Caroff, J. Casau, V. Cascioli, G. Castellini, I. Cernuda, F. Cervelli, M. J. Chae, Y. H. Chang, A. I. Chen, H. Chen, G. M. Cheng, H. S. Chen, L. Cheng, A. Chikanian, H. Y. Chou, E. Choumilov, V. Choutko, C. H. Chung, C. Clark, R. Clavero, G. Coignet, C. Consolandi, A. Contin, C. Corti, B. Coste, Z. Cui, M. Dai, C. Delgado, S. D. Torre, M. B. Demirkoz, L. Derome, S. D. Falco, L. D. Masso, F. Dimiccoli, C. Diaz, P. v. Doetinchem, W. J. Du, M. Duranti, D. D'Urso, A. Eline, F. J. Eppling, T. Eronen, Y. Y. Fan, L. Farnesini, J. Feng, E. Fiandrini, A. Fiasson, E. Finch, P. Fisher, Y. Galaktionov, G. Gallucci, B. Garcia, R. Garcia-Lopez, H. Gast, I. Gebauer, M. Gervasi, A. Ghelfi, W. Gillard, F. Giovacchini, P. Goglov, J. Gong, C. Goy, V. Grabski, D. Grandi, M. Graziani, C. Guandalini, I. Guerri, K. H. Guo, M. Habiby, S. Haino, K. C. Han, Z. H. He, M. Heil, J. Hoffman, T. H. Hsieh, Z. C. Huang, C. Huh, M. Incagli, M. Ionica, W. Y. Jang, H. Jinchi, K. Kanishev, G. N. Kim, K. S. Kim, T. Kirn, R. Kossakowski, O. Kounina, A. Kounine, V. Koutsenko, M. S. Krafczyk, S. Kunz, G. L. Vacca, E. Laudi, G. Laurenti, I. Lazzizzera, A. Lebedev, H. T. Lee, S. C. Lee, C. Leluc, H. L. Li, J. Q. Li, Q. Li, T. X. Li, W. Li, Y. Li, Z. H. Li, Z. Y. Li, S. Lim, C. H. Lin, P. Lipari, T. Lippert, D. Liu, H. Liu, T. Lomtadze, M. J. Lu, Y. S. Lu, K. Luebelsmeyer, F. Luo, J. Z. Luo, S. S. Lv, R. Majka, A. Malinin, C. Mana, J. Marin, T. Martin, G. Martinez, N. Masi, D. Maurin, A. Menchaca-Rocha, Q. Meng, D. C. Mo, L. Morescalchi, P. Mott, M. Muller, J. Q. Ni, N. Nikonov, F. Nozzoli, P. Nune, A. Obermeier, A. Oliva, M. Orcinha, F. Palmonari, C. Palomare, M. Paniccia, A. Papi, E. Pedreschi, S. Pensotti, R. Pereira, F. Pilo, A. Piluso, C. Pizzolotto, V. Plyaskin, M. Pohl, V. Poireau, E. Postaci, A. Putze, L. Quadrani, X. M. Qi, P. G. Rancoita, D. Rapin, J. S. Ricol, I. Rodriguez, S. Rosier-Lee, A. Rozhkov, D. Rozza, R. Sagdeev, J. Sandwei, P. Saouter, C. Sbarra, S. Schael, S. M. Schmidt, D. Schuckardt, A. S. von, G. Schwering, G. Scolieri, E. S. Seo, B. S. Shan, Y. H. Shan, J. Y. Shi, X. Y. Shi, Y. M. Shi, T. Siedenburg, D. Son, F. Spada, F. Spinella, W. Sun, W. H. Sun, M. Tacconi, C. P. Tang, X. W. Tang, Z. C. Tang, L. Tao, D. Tescaro, S. C. C., S. M. Ting, N. Tomassetti, J. Torsti, C. Turkoglu, T. Urban, V. Vagelli, E. Valente, C. Vannini, E. Valtonen, S. Vaurynovich, M. Vecchi, M. Velasco, J. P. Vialle, L. Q. Wang, Q. L. Wang, R. S. Wang, X. Wang, Z. X. Wang, Z. L. Weng, K. Whitman, J. Wienkenhover, H. Wu, X. Xia, M. Xie, S. Xie, R. Q. Xiong, G. M. Xin, N. S. Xu, W. Xu, Q. Yan, J. Yang, M. Yang, Q. H. Ye, H. Yi, Y. J. Yu, Z. Q. Yu, S. Zeissler, J. H. Zhang, M. T. Zhang, X. B. Zhang, Z. Zhang, Z. M. Zheng, H. L. Zhuang, V. Zhukov, A. Zichichi, N. Zimmermann, P. Zuccon, and C. Zurbach

Subjects
ASTROPHYSICS, Astrophysics and Astronomy, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, Positron spectrum, General Physics and Astronomy, Cosmic ray, Electron, ddc:500.2, Space mission, Nuclear physics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Radiative flux, Physics and Astronomy (all), FIS/05 - ASTRONOMIA E ASTROFISICA, Positron, Alpha Magnetic Spectrometer, ddc:550, Dark matter, Positron emission, AMS, Cosmic rays, electron flux, positron flux, international space station, Cosmic rays, Physics, Spectral index, Range (particle radiation), ta115, POSITRONS, ELECTRONS, FIS/01 - FISICA SPERIMENTALE, High Energy Physics::Experiment, COSMIC RAYS, ELECTRONS, POSITRONS, AMS, Electron spectrum, Astroparticle physics, Astrophysics - High Energy Astrophysical Phenomena, Particle Physics - Experiment
Abstract

International audience; Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to500 GeV are presented. The electron flux and the positron flux each require a description beyond a single power-law spectrum. Both the electron flux and the positron flux change their behavior at∼30GeV but the fluxes are significantly different in their magnitude and energy dependence. Between 20 and 200 GeV the positron spectral index is significantly harder than the electron spectral index. The determination of the differing behavior of the spectral indices versus energy is a new observation and provides important information on the origins of cosmic-ray electrons and positrons.

Published
2014

3. First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV

Author

Aguilar, M, Alberti, G, Alpat, B, Alvino, A, Ambrosi, G, Andeen, K, Anderhub, H, Arruda, L, Azzarello, P, Bachlechner, A, Barao, F, Baret, B, Barrau, A, Barrin, L, Bartoloni, A, Basara, L, Basili, A, Batalha, L, Bates, J, Battiston, R, Bazo, J, Becker, R, Becker, U, Behlmann, M, Beischer, B, Berdugo, J, Berges, P, Bertucci, B, Bigongiari, G, Biland, A, Bindi, V, Bizzaglia, S, de Boer, W, Bollweg, K, Bolmont, J, Borgia, B. Borsini, S, Boschini, MJ, Boudoul, G, Bourquin, M, Brun, P, Buenerd, M, Burger, J, Burger, W, Cadoux, F, Cai, XD, Capell, M, Casadei, D, Casaus, J, Cascioli, V, Castellini, G, Cernuda, I, Cervelli, F, Chae, MJ, Chang, YH, Chen, AI, Chen, CR, Chen, H, Cheng, GM, Chen, HS, Cheng, L, Chernoplyiokov, N, Chikanian, A, Choumilov, E, Choutko, V, Chung, CH, Clark, C, Clavero, R, Coignet, G, Commichau, V, Consolandi, C, Contin, A, Corti, C, Dios, MT, Costado Coste, B, Crespo, D, Cui, Z, Dai, M, Delgado, C, Della Torre, S, Demirkoz, B, Dennett, P, Derome, L, Di Falco, S, Diao, XH, Diago, A, Djambazov, L, Diaz, C, von Doetinchem, P, Du, WJ, Dubois, JM, Duperay, R, Duranti, M, D'Urso, D, Egorov, A, Eline, A, Eppling, FJ, Eronen, T, van Es, J, Esser, H, Falvard, A, Fiandrini, E, Fiasson, A, Finch, E, Fisher, P, Flood, K, Foglio, R, Fohey, M, Fopp, S, Fouque, N, Galaktionov, Y, Gallilee, M, Gallin Martel, L, Gallucci, G, Garcia, B, Garcia, J, Garcia Lopez, R, Garcia Tabares, L, Gargiulo, C, Gast, H, Gebauer, I, Gentile, S, Gillard, W, Giovacchini, F, Girard, L, Goglov, P, Gong, J, Goy Henningsen, C, Grandi, D, Graziani, M, Grechko, A, Gross, A, Guerri, I, de la Guia, C, Guo, KH, Habiby, M, Haino, S, Hauler, F, He, ZH, Heil, M, Heilig, J, Hermel, R, Hofer, H, Huang, ZC, Hungerford, W, Incagli, M, Ionica, M, Jacholkowska, A, Jang, WY, Jinchi, H, Jongmanns, M, Journet, L, Jungermann, L, Karpinski, W, Kim, GN, Kim, KS, Kirn, Th, Kossakowski, R, Koulemzine, A, Kounina, O, Kounine, A, Koutsenko, V, Krafczyk, MS, Laudi, E, Laurenti, G, Lauritzen, C, Lebedev, A, Lee, MW, Lee, SC, Leluc, C, Vargas, HL, Lepareur, V, Li, JQ, Li, Q, Li, TX, Li, W, Li, ZH, Lipari, P, Lin, CH, Liu, D, Liu, H, Lomtadze, T, Lu, YS, Lucidi, S, Luebelsmeyer, K, Luo, JZ, Lustermann, W, Lv, S, Madsen, J, Majka, R, Malinin, A, Mana, C, Marin, J, Martin, T, Martinez, G, Masciocchi, F, Masi, N, Maurin, D, McInturff, A, McIntyre, P, Menchaca Rocha, A, Meng, Q, Menichelli, M, Mereu, I, Millinger, M, Mo, DC, Molina, M, Mott, P, Mujunen, A, Natale, S, Nemeth, P, Ni, JQ, Nikonov, N, Nozzoli, F, Nunes, P, Obermeier, A, Oh, S, Oliva, A, Palmonari, F, Palomares, C, Paniccia, M, Papi, A, Park, WH, Pauluzzi, M, Pauss, F, Pauw, A, Pedreschi, E, Pereira, R, Perrin, E, Pierschel, G, Pilo, F, Piluso, A, Pizzolotto, C, Plyaskin, V, Pochon, J, Pohl, M, Poireau, V, Porter, S, Pouxe, J, Putze, A, Quadrani, L, Qi, XN, Rancoita, PG, Rapin, D, Ren, ZL, Ricol, JS, Riihonen, E, Rodriguez, I, Roeser, U, Rosier Lees, S, Rossi, L, Rozhkov, A, ROZZA, DAVIDE, Sabellek, A, Sagdeev, R, Sandweiss, J, Santos, B, Saouter, P, Sarchioni, M, Schael, S, Schinzel, D, Schmanau, M, Schwering, G, von Dratzig, AS, Scolieri, G, Seo, ES, Shan, BS, Shi, JY, Shi, YM, Siedenburg, T, Siedling, R, Son, D, Spada, F, Spinella, F, Steuer, M, Stiff, K, Sun, W, Sun, WH, Sun, XH, Tang, CP, Tang, XW, Tang, ZC, Tao, L, Tassan Viol, J, Ting, Samuel CC, Ting, SM, Titus, C, Tomassetti, N, Toral, F, Torsti, J, Tsai, JR, Tutt, JC, Ulbricht, J, Urban, T, Vagelli, V, Valente, E, Vannini, C, Valtonen, E, Trevino, MV, Vaurynovich, S, Vecchi, M, Vergain, M, Verlaat, B, Vescovi, C, Vialle, JP, Viertel, G, Volpini, G, Wang, D, Wang, NH, Wang, QL, Wang, RS, Wang, X, Wang, ZX, Wallraff, W, Weng, ZL, Willenbrock, M, Wlochal, M, Wu, H, Wu, KY, Wu, ZS, Xiao, WJ, Xie, S, Xiong, RQ, Xin, GM, Xu, NS, Xu, W, Yan, Q, Yang, J, Yang, M, Ye, QH, Yi, H, Yu, YJ, Yu, ZQ, Zeissler, S, Zhang, JG, Zhang, Z, Zhang, MM, Zheng, ZM, Zhuang, HL, Zhukov, V, Zichichi, A, Zuccon, P, Zurbach, C., BOELLA, GIULIANO FILIPPO, GERVASI, MASSIMO, PENSOTTI, SIMONETTA, PESSINA, GIANLUIGI EZIO, TACCONI, MAURO, M. Aguilar, G. Alberti, B. Alpat, A. Alvino, G. Ambrosi, K. Andeen, H. Anderhub, L. Arruda, P. Azzarello, A. Bachlechner, F. Barao, B. Baret, A. Barrau, L. Barrin, A. Bartoloni, L. Basara, A. Basili, L. Batalha, J. Bate, R. Battiston, J. Bazo, R. Becker, U. Becker, M. Behlmann, B. Beischer, J. Berdugo, P. Berge, B. Bertucci, G. Bigongiari, A. Biland, V. Bindi, S. Bizzaglia, G. Boella, W. de Boer, K. Bollweg, J. Bolmont, B. Borgia, S. Borsini, M. J. Boschini, G. Boudoul, M. Bourquin, P. Brun, M. Buénerd, J. Burger, W. Burger, F. Cadoux, X. D. Cai, M. Capell, D. Casadei, J. Casau, V. Cascioli, G. Castellini, I. Cernuda, F. Cervelli, M. J. Chae, Y. H. Chang, A. I. Chen, C. R. Chen, H. Chen, G. M. Cheng, H. S. Chen, L. Cheng, N. Chernoplyiokov, A. Chikanian, E. Choumilov, V. Choutko, C. H. Chung, C. Clark, R. Clavero, G. Coignet, V. Commichau, C. Consolandi, A. Contin, C. Corti, M. T. Costado Dio, B. Coste, D. Crespo, Z. Cui, M. Dai, C. Delgado, S. Della Torre, B. Demirkoz, P. Dennett, L. Derome, S. Di Falco, X. H. Diao, A. Diago, L. Djambazov, C. Díaz, P. von Doetinchem, W. J. Du, J. M. Duboi, R. Duperay, M. Duranti, D. D’Urso, A. Egorov, A. Eline, F. J. Eppling, T. Eronen, J. van E, H. Esser, A. Falvard, E. Fiandrini, A. Fiasson, E. Finch, P. Fisher, K. Flood, R. Foglio, M. Fohey, S. Fopp, N. Fouque, Y. Galaktionov, M. Gallilee, L. Gallin-Martel, G. Gallucci, B. García, J. García, R. García-López, L. García-Tabare, C. Gargiulo, H. Gast, I. Gebauer, S. Gentile, M. Gervasi, W. Gillard, F. Giovacchini, L. Girard, P. Goglov, J. Gong, C. Goy-Henningsen, D. Grandi, M. Graziani, A. Grechko, A. Gro, I. Guerri, C. de la Guía, K. H. Guo, M. Habiby, S. Haino, F. Hauler, Z. H. He, M. Heil, J. Heilig, R. Hermel, H. Hofer, Z. C. Huang, W. Hungerford, M. Incagli, M. Ionica, A. Jacholkowska, W. Y. Jang, H. Jinchi, M. Jongmann, L. Journet, L. Jungermann, W. Karpinski, G. N. Kim, K. S. Kim, Th. Kirn, R. Kossakowski, A. Koulemzine, O. Kounina, A. Kounine, V. Koutsenko, M. S. Krafczyk, E. Laudi, G. Laurenti, C. Lauritzen, A. Lebedev, M. W. Lee, S. C. Lee, C. Leluc, H. León Varga, V. Lepareur, J. Q. Li, Q. Li, T. X. Li, W. Li, Z. H. Li, P. Lipari, C. H. Lin, D. Liu, H. Liu, T. Lomtadze, Y. S. Lu, S. Lucidi, K. Lübelsmeyer, J. Z. Luo, W. Lustermann, S. Lv, J. Madsen, R. Majka, A. Malinin, C. Mañá, J. Marín, T. Martin, G. Martínez, F. Masciocchi, N. Masi, D. Maurin, A. McInturff, P. McIntyre, A. Menchaca-Rocha, Q. Meng, M. Menichelli, I. Mereu, M. Millinger, D. C. Mo, M. Molina, P. Mott, A. Mujunen, S. Natale, P. Nemeth, J. Q. Ni, N. Nikonov, F. Nozzoli, P. Nune, A. Obermeier, S. Oh, A. Oliva, F. Palmonari, C. Palomare, M. Paniccia, A. Papi, W. H. Park, M. Pauluzzi, F. Pau, A. Pauw, E. Pedreschi, S. Pensotti, R. Pereira, E. Perrin, G. Pessina, G. Pierschel, F. Pilo, A. Piluso, C. Pizzolotto, V. Plyaskin, J. Pochon, M. Pohl, V. Poireau, S. Porter, J. Pouxe, A. Putze, L. Quadrani, X. N. Qi, P. G. Rancoita, D. Rapin, Z. L. Ren, J. S. Ricol, E. Riihonen, I. Rodríguez, U. Roeser, S. Rosier-Lee, L. Rossi, A. Rozhkov, D. Rozza, A. Sabellek, R. Sagdeev, J. Sandwei, B. Santo, P. Saouter, M. Sarchioni, S. Schael, D. Schinzel, M. Schmanau, G. Schwering, A. Schulz von Dratzig, G. Scolieri, E. S. Seo, B. S. Shan, J. Y. Shi, Y. M. Shi, T. Siedenburg, R. Siedling, D. Son, F. Spada, F. Spinella, M. Steuer, K. Stiff, W. Sun, W. H. Sun, X. H. Sun, M. Tacconi, C. P. Tang, X. W. Tang, Z. C. Tang, L. Tao, J. Tassan-Viol, Samuel C. C. Ting, S. M. Ting, C. Titu, N. Tomassetti, F. Toral, J. Torsti, J. R. Tsai, J. C. Tutt, J. Ulbricht, T. Urban, V. Vagelli, E. Valente, C. Vannini, E. Valtonen, M. Vargas Trevino, S. Vaurynovich, M. Vecchi, M. Vergain, B. Verlaat, C. Vescovi, J. P. Vialle, G. Viertel, G. Volpini, D. Wang, N. H. Wang, Q. L. Wang, R. S. Wang, X. Wang, Z. X. Wang, W. Wallraff, Z. L. Weng, M. Willenbrock, M. Wlochal, H. Wu, K. Y. Wu, Z. S. Wu, W. J. Xiao, S. Xie, R. Q. Xiong, G. M. Xin, N. S. Xu, W. Xu, Q. Yan, J. Yang, M. Yang, Q. H. Ye, H. Yi, Y. J. Yu, Z. Q. Yu, S. Zeissler, J. G. Zhang, Z. Zhang, M. M. Zhang, Z. M. Zheng, H. L. Zhuang, V. Zhukov, A. Zichichi, P. Zuccon, C. Zurbach, Azzarello, Philipp, Bourquin, Maurice, Cadoux, Franck, Habiby Alaoui, Marion, Leluc, Catherine, Masciocchi, Florian, Paniccia, Mercedes, Perrin, Eric, Pohl, Martin, Rapin, Divic Jean, Saouter, Pierre, Metsähovi Radio Observatory, Aalto-yliopisto, Aalto University, OpenMETU, CERN [Genève], Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (INFN, Sezione di Perugia), Istituto Nazionale di Fisica Nucleare (INFN), Karlsruhe Institute of Technology (KIT), Institute for Theoretical Physics [ETH Zürich] (ITP), Department of Physics [ETH Zürich] (D-PHYS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich)- Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), RWTH Aachen University, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Massachusetts Institute of Technology (MIT), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Département de Physique Nucléaire et Corpusculaire [Genève] (DPNC), Université de Genève (UNIGE), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (INFN, Sezione di Bologna), Instituto de Astrofisica de Canarias (IAC), Instituto de Matematicas (UNAM), Universidad Nacional Autónoma de México (UNAM), Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1] (INFN), Istituto Nazionale di Fisica Nucleare, INFN Sezione di Pisa (INFN Sezione di Pisa), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), AMS, Aguilar, M, Alberti, G, Alpat, B, Alvino, A, Ambrosi, G, Andeen, K, Anderhub, H, Arruda, L, Azzarello, P, Bachlechner, A, Barao, F, Baret, B, Barrau, A, Barrin, L, Bartoloni, A, Basara, L, Basili, A, Batalha, L, Bates, J, Battiston, R, Bazo, J, Becker, R, Becker, U, Behlmann, M, Beischer, B, Berdugo, J, Berges, P, Bertucci, B, Bigongiari, G, Biland, A, Bindi, V, Bizzaglia, S, Boella, G, de Boer, W, Bollweg, K, Bolmont, J, Borgia, B., B, S, Boschini, M, Boudoul, G, Bourquin, M, Brun, P, Buenerd, M, Burger, J, Burger, W, Cadoux, F, Cai, X, Capell, M, Casadei, D, Casaus, J, Cascioli, V, Castellini, G, Cernuda, I, Cervelli, F, Chae, M, Chang, Y, Chen, A, Chen, C, Chen, H, Cheng, G, Cheng, L, Chernoplyiokov, N, Chikanian, A, Choumilov, E, Choutko, V, Chung, C, Clark, C, Clavero, R, Coignet, G, Commichau, V, Consolandi, C, Contin, A, Corti, C, Dios, M, Costado Coste, B, Crespo, D, Cui, Z, Dai, M, Delgado, C, Della Torre, S, Demirkoz, B, Dennett, P, Derome, L, Di Falco, S, Diao, X, Diago, A, Djambazov, L, Diaz, C, von Doetinchem, P, Du, W, Dubois, J, Duperay, R, Duranti, M, D'Urso, D, Egorov, A, Eline, A, Eppling, F, Eronen, T, van Es, J, Esser, H, Falvard, A, Fiandrini, E, Fiasson, A, Finch, E, Fisher, P, Flood, K, Foglio, R, Fohey, M, Fopp, S, Fouque, N, Galaktionov, Y, Gallilee, M, Gallin Martel, L, Gallucci, G, Garcia, B, Garcia, J, Garcia Lopez, R, Garcia Tabares, L, Gargiulo, C, Gast, H, Gebauer, I, Gentile, S, Gervasi, M, Gillard, W, Giovacchini, F, Girard, L, Goglov, P, Gong, J, Goy Henningsen, C, Grandi, D, Graziani, M, Grechko, A, Gross, A, Guerri, I, de la Guia, C, Guo, K, Habiby, M, Haino, S, Hauler, F, He, Z, Heil, M, Heilig, J, Hermel, R, Hofer, H, Huang, Z, Hungerford, W, Incagli, M, Ionica, M, Jacholkowska, A, Jang, W, Jinchi, H, Jongmanns, M, Journet, L, Jungermann, L, Karpinski, W, Kim, G, Kim, K, Kirn, T, Kossakowski, R, Koulemzine, A, Kounina, O, Kounine, A, Koutsenko, V, Krafczyk, M, Laudi, E, Laurenti, G, Lauritzen, C, Lebedev, A, Lee, M, Lee, S, Leluc, C, Vargas, H, Lepareur, V, Li, J, Li, Q, Li, T, Li, W, Li, Z, Lipari, P, Lin, C, Liu, D, Liu, H, Lomtadze, T, Lu, Y, Lucidi, S, Luebelsmeyer, K, Luo, J, Lustermann, W, Lv, S, Madsen, J, Majka, R, Malinin, A, Mana, C, Marin, J, Martin, T, Martinez, G, Masciocchi, F, Masi, N, Maurin, D, Mcinturff, A, Mcintyre, P, Menchaca Rocha, A, Meng, Q, Menichelli, M, Mereu, I, Millinger, M, Mo, D, Molina, M, Mott, P, Mujunen, A, Natale, S, Nemeth, P, Ni, J, Nikonov, N, Nozzoli, F, Nunes, P, Obermeier, A, Oh, S, Oliva, A, Palmonari, F, Palomares, C, Paniccia, M, Papi, A, Park, W, Pauluzzi, M, Pauss, F, Pauw, A, Pedreschi, E, Pensotti, S, Pereira, R, Perrin, E, Pessina, G, Pierschel, G, Pilo, F, Piluso, A, Pizzolotto, C, Plyaskin, V, Pochon, J, Pohl, M, Poireau, V, Porter, S, Pouxe, J, Putze, A, Quadrani, L, Qi, X, Rancoita, P, Rapin, D, Ren, Z, Ricol, J, Riihonen, E, Rodriguez, I, Roeser, U, Rosier Lees, S, Rossi, L, Rozhkov, A, Rozza, D, Sabellek, A, Sagdeev, R, Sandweiss, J, Santos, B, Saouter, P, Sarchioni, M, Schael, S, Schinzel, D, Schmanau, M, Schwering, G, von Dratzig, A, Scolieri, G, Seo, E, Shan, B, Shi, J, Shi, Y, Siedenburg, T, Siedling, R, Son, D, Spada, F, Spinella, F, Steuer, M, Stiff, K, Sun, W, Sun, X, Tacconi, M, Tang, C, Tang, X, Tang, Z, Tao, L, Tassan Viol, J, Ting, S, Titus, C, Tomassetti, N, Toral, F, Torsti, J, Tsai, J, Tutt, J, Ulbricht, J, Urban, T, Vagelli, V, Valente, E, Vannini, C, Valtonen, E, Trevino, M, Vaurynovich, S, Vecchi, M, Vergain, M, Verlaat, B, Vescovi, C, Vialle, J, Viertel, G, Volpini, G, Wang, D, Wang, N, Wang, Q, Wang, R, Wang, X, Wang, Z, Wallraff, W, Weng, Z, Willenbrock, M, Wlochal, M, Wu, H, Wu, K, Wu, Z, Xiao, W, Xie, S, Xiong, R, Xin, G, Xu, N, Xu, W, Yan, Q, Yang, J, Yang, M, Ye, Q, Yi, H, Yu, Y, Yu, Z, Zeissler, S, Zhang, J, Zhang, Z, Zhang, M, Zheng, Z, Zhuang, H, Zhukov, V, Zichichi, A, Zuccon, P, and Zurbach, C

Subjects
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::High Energy Astrophysical Phenomena, education, Dark matter, General Physics and Astronomy, Electrons, Cosmic ray, ddc:500.2, Electron, 01 natural sciences, and other elementary particle detectors, cosmic ray detectors, Nuclear physics, Physics and Astronomy (all), Positron, cosmic rays, muon, Neutrino, 0103 physical sciences, Alpha Magnetic Spectrometer, 010306 general physics, Anisotropy, Physics, Range (particle radiation), ta115, ta213, ta114, Cosmic rays, positron fraction, space experiments, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], pion, Observable, energy spectra and interactions, pion, and other elementary particle detectors, ELECTRONS, cosmic rays, dark matter, Physics::Accelerator Physics, High Energy Physics::Experiment, Composition
Abstract

A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8 x 10(6) positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to similar to 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. The positron fraction spectrum shows no fine structure, and the positron to electron ratio shows no observable anisotropy. Together, these features show the existence of new physical phenomena. DOI: 10.1103/PhysRevLett.110.141102

Published
2013

4. Performance visualizations using XML representations

Author

Yu, YJ, Beyls, Kristof, and D'Hollander, Erik

Subjects
Technology and Engineering, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, intermediate representations, performance visualizations, XML
Abstract

The intermediate representation (IR)forms the information exchanged among different passes of program compilation. The intermediate format proposed for extensibility and persistence is written in XML. In this way, the program transformations that were internal to the compiler become visible. The hierarchical structure of XML makes a natural representation for the abstract syntax tree (AST). A compiler can parse the program source into an IR, then output it as an XML document. Separated by orthogonal namespaces, other IRs are also presented in the same XML document, gathering program information such as dependence vectors, transforming matrices, iteration spaces dependence graphs and cache reuse distances. This XML document can be exchanged between the compiler and program visualizers for parallelism and locality.

Published
2004

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