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Просмотр по автору "Matsumoto K."

Просмотр по автору "Matsumoto K."

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  • A mitochondrial superoxide theory for oxidative stress diseases and aging 
    Indo H.; Yen H.; Nakanishi I.; Matsumoto K.; Tamura M.; Nagano Y.; Matsui H.; Gusev O.; Cornette R.; Okuda T.; Minamiyama Y.; Ichikawa H.; Suenaga S.; Oki M.; Sato T.; Ozawa T.; Clair D.; Majima H. (2015)
    © 2015 JCBN. Fridovich identified CuZnSOD in 1969 and manganese superoxide dismutase (MnSOD) in 1973, and proposed "the Superoxide Theory," which postulates that superoxide (O2 -) is the origin of most reactive oxygen ...
  • A search for periodic and quasi-periodic photometric behavior in the cataclysmic variable TT arietis 
    Andronov I.; Arai K.; Chinarova L.; Dorokhov N.; Dorokhova T.; Dumitrescu A.; Nogami D.; Kolesnikov S.; Lepardo A.; Mason P.; Matsumoto K.; Oprescu G.; Pajdosz G.; Passuelo R.; Patkos L.; Senio D.; Sostero G.; Suleimanov V.; Tremko J.; Zhukov G.; Zola S. (1999)
    Observations of TT Ari obtained at 11 observatories (campaign TT Ari-94) during 258 hr were carried out to study optical variability on timescales from minutes to weeks. The best-fit primary photometric period determined ...
  • About anomalous ultrasound attenuation in aerogels filled in by liquid 4He below Tλ 
    Tayurskii A.; Badrutdinov O.; Matsumoto K. (2009)
    In the present work we propose the explanation of the recently observed at temperatures about 1.7 K anomalous ultrasound attenuation in high-porous aerogels filled in by liquid 4He by means of 2D-3D roton transformations. ...
  • ac susceptibility and static magnetization measurements of CeRu2Si2 at small magnetic fields and ultralow temperatures 
    Takahashi D.; Abe S.; Mizuno H.; Tayurskii D.; Matsumoto K.; Suzuki H.; Onuki Y. (2003)
    The magnetic properties of CeRu2Si2 at microkelvin temperatures (down to 170 μK) and ultrasmall magnetic fields (0.02∼6.21 mT) are investigated experimentally. The simultaneously measured ac susceptibility and static ...
  • Anisotropic magnetization of the Van Vleck paramagnet LiTmF4 at low temperatures and high magnetic fields 
    Abubakirov D.; Matsumoto K.; Suzuki H.; Tagirov M. (2008)
    Lithium thulium fluoride LiTmF4 is an insulating Van Vleck paramagnet with a giant magnetostriction. Magnetization of the tetragonal LiTmF4 single crystals was measured for the first time in the temperature range of 2-300K ...
  • Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using Its General Relativity Centenary Flare: Improved Orbital Parameters 
    Dey L.; Valtonen M.; Gopakumar A.; Zola S.; Hudec R.; Pihajoki P.; Ciprini S.; Matsumoto K.; Sadakane K.; Kidger M.; Nilsson K.; Mikkola S.; Sillanpää A.; Takalo L.; Lehto H.; Berdyugin A.; Piirola V.; Jermak H.; Baliyan K.; Pursimo T.; Caton D.; Alicavus F.; Baransky A.; Blay P.; Boumis P.; Boyd D.; Torrent M.; Campos F.; Gómez J.; Chandra S.; Chavushyan V.; Dalessio J.; Debski B.; Drozdz M.; Er H.; Erdem A.; Pérez A.; Ramazani V.; Filippenko A.; Gafton E.; Ganesh S.; Garcia F.; Gazeas K.; Godunova V.; Pinilla F.; Gopinathan M.; Haislip J.; Harmanen J.; Hurst G.; Janík J.; Jelinek M.; Joshi A.; Kagitani M.; Karjalainen R.; Kaur N.; Keel W.; Kouprianov V.; Kundera T.; Kurowski S.; Kvammen A.; Lacluyze A.; Lee B.; Liakos A.; Lindfors E.; De Haro J.; Mugrauer M.; Nogues R.; Neely A.; Nelson R.; Ogloza W.; Okano S.; Pajdosz-Śmierciak U.; Pandey J.; Perri M.; Poyner G.; Provencal J.; Raj A.; Reichart D.; Reinthal R.; Reynolds T.; Saario J.; Sadegi S.; Sakanoi T.; González J.; Sameer; Schweyer T.; Simon A. (2018)
    © 2018. The American Astronomical Society. All rights reserved. Results from regular monitoring of relativistic compact binaries like PSR 1913+16 are consistent with the dominant (quadrupole) order emission of gravitational ...
  • Blazar spectral variability as explained by a twisted inhomogeneous jet 
    Raiteri C.; Villata M.; Acosta-Pulido J.; Agudo I.; Arkharov A.; Bachev R.; Baida G.; Benítez E.; Borman G.; Boschin W.; Bozhilov V.; Butuzova M.; Calcidese P.; Carnerero M.; Carosati D.; Casadio C.; Castro-Segura N.; Chen W.; Damljanovic G.; D'Ammando F.; Di Paola A.; Echevarría J.; Efimova N.; Ehgamberdiev S.; Espinosa C.; Fuentes A.; Giunta A.; Gómez J.; Grishina T.; Gurwell M.; Hiriart D.; Jermak H.; Jordan B.; Jorstad S.; Joshi M.; Kopatskaya E.; Kuratov K.; Kurtanidze O.; Kurtanidze S.; Lähteenmäki A.; Larionov V.; Larionova E.; Larionova L.; Lázaro C.; Lin C.; Malmrose M.; Marscher A.; Matsumoto K.; McBreen B.; Michel R.; Mihov B.; Minev M.; Mirzaqulov D.; Mokrushina A.; Molina S.; Moody J.; Morozova D.; Nazarov S.; Nikolashvili M.; Ohlert J.; Okhmat D.; Ovcharov E.; Pinna F.; Polakis T.; Protasio C.; Pursimo T.; Redondo-Lorenzo F.; Rizzi N.; Rodriguez-Coira G.; Sadakane K.; Sadun A.; Samal M.; Savchenko S.; Semkov E.; Skiff B.; Slavcheva-Mihova L.; Smith P.; Steele I. (2017)
    © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. Blazars are active galactic nuclei, which are powerful sources of radiation whose central engine is located in the core of the host galaxy. ...
  • Differential VLBI observations of two sub-satellites of SELENE (KAGUYA), OKINA and OUNA for lunar gravimetry 
    Hanada H.; Iwata T.; Kikuchi F.; Liu Q.; Matsumoto K.; Asari K.; Ishikawa T.; Ishihara Y.; Noda H.; Tsuruta S.; Petrova N.; Goossens S.; Harada Y.; Sasaki S.; Namiki N.; Kono Y.; Iwadate K.; Kameya O.; Jike T.; Shibata K.; Tamura Y.; Yahagi Y.; Masui W.; Tanaka K.; Maejima H.; Hong X.; Ping J.; Aili Y.; Ellingsen S.; Schlüter W. (2009)
    The Japanese lunar explorer SELENE (KAGUYA), which has been launched on Sep. 14th, 2007, utilizes VLBI observations in lunar gravimetry investigations. This can particularly improve the accuracy of the low degree gravitational ...
  • Discovery of standstills in the SU UMa-type dwarf nova NY Serpentis 
    Kato T.; Pavlenko E.; Pit N.; Antonyuk K.; Antonyuk O.; Babina J.; Baklanov A.; Sosnovskij A.; Belan S.; Maeda Y.; Sugiura Y.; Sumiya S.; Matsumoto H.; Ito D.; Nikai K.; Kojiguchi N.; Matsumoto K.; Dubovsky P.; Kudzej I.; Medulka T.; Wakamatsu Y.; Ohnishi R.; Seki T.; Isogai K.; Simon A.; Romanjuk Y.; Baransky A.; Sergeev A.; Godunova V.; Izviekova I.; Kozlov V.; Sklyanov A.; Zhuchkov R.; Gutaev A.; Ponomarenko V.; Vasylenko V.; Miller I.; Kasai K.; Dvorak S.; Menzies K.; De Miguel E.; Brincat S.; Pickard R. (2019)
    © The Author(s) 2019. We found that the SU UMa-type dwarf nova NY Ser in the period gap [orbital period 0.097558(6) d] showed standstills twice in 2018. This is the first clear demonstration of a standstill occurring between ...
  • Frequency dependence of fast mode ultrasound attenuation of liquid 4He in aerogel 
    Matsumoto K.; Tsuboya H.; Ohmori K.; Abe S.; Suzuki H.; Tayurskii D. (2009)
    In our previous work, anomalous sound attenuation in superfluid phase was observed in liquid 4He filled in 97.0 % porous aerogel using longitudinal ultrasound at the frequency of 10 MHz. To understand the nature of the ...
  • Magnetic properties of Dy 3+ ions and crystal field characterization in YF 3:Dy 3+and DyF 3 single crystals 
    Savinkov A.; Korableva S.; Rodionov A.; Kurkin I.; Malkin B.; Tagirov M.; Suzuki H.; Matsumoto K.; Abe S. (2008)
    The de magnetic susceptibilities of the orthorhombic DyF 3 single crystals have been measured in the temperature range between 1.8 and 300 K. The susceptibility along the b-axis does not depend on temperature below T C ...
  • Magnetocaloric effect in single crystal GdTiO<inf>3</inf> 
    Omote H.; Watanabe S.; Matsumoto K.; Gilmutdinov I.; Kiiamov A.; Tayurskii D. (2019)
    © 2019 We studied the magnetocaloric effect in a single crystal GdTiO3. Single crystal GdTiO3 had a second order phase transition from a paramagnetic to ferrimagnetic state at 33 K. The maximum entropy change of -ΔS=0.10 ...
  • Multiwavelength behaviour of the blazar 3C 279: Decade-long study from γ -ray to radio 
    Larionov V.M.; Jorstad S.G.; Marscher A.P.; Villata M.; Raiteri C.M.; Smith P.S.; Agudo I.; Savchenko S.S.; Morozova D.A.; Acosta-Pulido J.A.; Aller M.F.; Aller H.D.; Andreeva T.S.; Arkharov A.A.; Bachev R.; Bonnoli G.; Borman G.A.; Bozhilov V.; Calcidese P.; Carnerero M.I.; Carosati D.; Casadio C.; Chen W.P.; Damljanovic G.; Dementyev A.V.; Di Paola A.; Frasca A.; Fuentes A.; Gómez J.L.; Gónzalez-Morales P.; Giunta A.; Grishina T.S.; Gurwell M.A.; Hagen-Thorn V.A.; Hovatta T.; Ibryamov S.; Joshi M.; Kiehlmann S.; Kim J.Y.; Kimeridze G.N.; Kopatskaya E.N.; Kovalev Y.A.; Kovalev Y.Y.; Kurtanidze O.M.; Kurtanidze S.O.; Lähteenmäki A.; Lázaro C.; Larionova L.V.; Larionova E.G.; Leto G.; Marchini A.; Matsumoto K.; Mihov B.; Minev M.; Mingaliev M.G.; Mirzaqulov D.; Muñoz Dimitrova R.V.; Myserlis I.; Nikiforova A.A.; Nikolashvili M.G.; Nizhelsky N.A.; Ovcharov E.; Pressburger L.D.; Rakhimov I.A.; Righini S.; Rizzi N.; Sadakane K.; Sadun A.C.; Samal M.R.; Sanchez R.Z.; Semkov E.; Sergeev S.G.; Sigua L.A.; Slavcheva-Mihova L.; Sola P.; Sotnikova Y.V.; Strigachev A.; Thum C.; Traianou E.; Troitskaya Y.V.; Troitsky I.S.; Tsybulev P.G.; Vasilyev A.A.; Vince O.; Weaver Z.R.; Williamson K.E.; Zhekanis G.V. (2020)
    © 2020 The Author(s). We report the results of decade-long (2008-2018) γ -ray to 1 GHz radio monitoring of the blazar 3C 279, including GASP/WEBT, Fermi and Swift data, as well as polarimetric and spectroscopic data. The ...
  • Multiwavelength Variability of BL Lacertae Measured with High Time Resolution 
    Weaver Z.R.; Williamson K.E.; Jorstad S.G.; Marscher A.P.; Larionov V.M.; Raiteri C.M.; Villata M.; Acosta-Pulido J.A.; Bachev R.; Baida G.V.; Balonek T.J.; Benítez E.; Borman G.A.; Bozhilov V.; Carnerero M.I.; Carosati D.; Chen W.P.; Damljanovic G.; Dhiman V.; Dougherty D.J.; Ehgamberdiev S.A.; Grishina T.S.; Gupta A.C.; Hart M.; Hiriart D.; Hsiao H.Y.; Ibryamov S.; Joner M.; Kimeridze G.N.; Kopatskaya E.N.; Kurtanidze O.M.; Kurtanidze S.O.; Larionova E.G.; Matsumoto K.; Matsumura R.; Minev M.; Mirzaqulov D.O.; Morozova D.A.; Nikiforova A.A.; Nikolashvili M.G.; Ovcharov E.; Rizzi N.; Sadun A.; Savchenko S.S.; Semkov E.; Slater J.J.; Smith K.L.; Stojanovic M.; Strigachev A.; Troitskaya Y.V.; Troitsky I.S.; Tsai A.L.; Vince O.; Valcheva A.; Vasilyev A.A.; Zaharieva E.; Zhovtan A.V. (2020)
    © 2020. The American Astronomical Society. All rights reserved.. In an effort to locate the sites of emission at different frequencies and physical processes causing variability in blazar jets, we have obtained high ...
  • NMR study of enriched195Pt metal 
    Suzuki H.; Kobayashi E.; Abe S.; Matsumoto K.; Mukhamedshin I.; Egorov A.; Tagirov M. (2003)
    The natural Pt metal has many isotopes. Among them only 195Pt has the nuclear spin, I = 1/2. The Pt metal is an ideal system to investigate the concentration dependence of the nuclear spin order without changing the ...
  • NMR, high frequency EPR and magnetization studies of YF 3:Tm 3+ and TmF 3 
    Savinkov A.; Shakurov G.; Korableva S.; Dooglav A.; Tagirov M.; Suzuki H.; Matsumoto K.; Abe S. (2011)
    Magnetic properties of single crystal and powder samples of thulium fluoride, TmF 3 (orthorhombic Pnma space group), and single crystals of YF 3 doped with the Tm 3+ ions are studied by NMR, high-frequency EPR and ...
  • Overview of differential VLBI observations of lunar orbiters in SELENE (Kaguya) for precise orbit determination and lunar gravity field study 
    Hanada H.; Iwata T.; Liu Q.; Kikuchi F.; Matsumoto K.; Goossens S.; Harada Y.; Asari K.; Ishikawa T.; Ishihara Y.; Noda H.; Tsuruta S.; Petrova N.; Kawano N.; Sasaki S.; Sato K.; Namiki N.; Kono Y.; Iwadate K.; Kameya O.; Shibata K.; Tamura Y.; Kamata S.; Yahagi Y.; Masui W.; Tanaka K.; Maejima H.; Hong X.; Ping J.; Shi X.; Huang Q.; Aili Y.; Ellingsen S.; Schlüter W. (2010)
    The Japanese lunar explorer SELENE (Kaguya), which was launched on September 14th, 2007, was the target of VLBI observations over the period November 2007 to June 2009. These observations were made in order to improve the ...
  • Picosecond accuracy VLBI of the two subsatellites of SELENE (KAGUYA) using multifrequency and same beam methods 
    Kikuchi F.; Liu Q.; Hanada H.; Kawano N.; Matsumoto K.; Iwata T.; Goossens S.; Asari K.; Ishihara Y.; Tsuruta S.; Ishikawa T.; Noda H.; Namiki N.; Petrova N.; Harada Y.; Ping J.; Sasaki S. (2009)
    Same beam very long baseline interferometry (VLBI) observations of the two subsatellites of SELENE (KAGUYA) are demonstrated for purpose of the precise gravimetry of the Moon. Same beam VLBI contributes a great deal to ...
  • Polarization and spectral energy distribution in OJ 287 during the 2016/17 outbursts 
    Valtonen M.; Zola S.; Jermak H.; Ciprini S.; Hudec R.; Dey L.; Gopakumar A.; Reichart D.; Caton D.; Gazeas K.; Matsumoto K.; Ogloza W.; Drozdz M.; Alicavus F.; Baransky O.; Berdyugin A.; Boumis P.; Bufan Y.; Debski B.; Er H.; Erdem A.; Godunova V.; Haque S.; Hoette V.; Janik J.; Kidger M.; Kundera T.; Kurowski S.; Liakos A.; Mohammed I.; Nilsson K.; Pajdosz U.; Piirola V.; Pursimo T.; Rajkumar B.; Simon A.; Siwak M.; Sonbas E.; Steele I.; Vasylenko V.; Zejmo M.; Zielinski P. (2017)
    © 2017 by the authors. We report optical photometric and polarimetric observations of the blazar OJ 287 gathered during 2016/17. The high level of activity, noticed after the General Relativity Centenary flare, is argued ...
  • Porosity dependence of sound propagation in liquid-4He-filled aerogel 
    Matsumoto K.; Matsuyama Y.; Tayurskii D.; Tajiri K. (2004)
    Longitudinal sound-wave propagation has been studied in an aerogel-liquid 4He system for various porosities of aerogel. The superfluid transition was identified as the absorption peak, whose magnitude was suppressed by ...

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