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  1. Article

    Open Access

    Decadal–centennial-scale solar-linked climate variations and millennial-scale internal oscillations during the Early Cretaceous

    Understanding climate variability and stability under extremely warm ‘greenhouse’ conditions in the past is essential for future climate predictions. However, information on millennial-scale (and shorter) clim...

    Hitoshi Hasegawa, Nagayoshi Katsuta, Yasushi Muraki, Ulrich Heimhofer in Scientific Reports (2022)

  2. Article

    Open Access

    A mouse monoclonal antibody against influenza C virus attenuates acetaminophen-induced liver injury in mice

    Molecular mimicry is one of the main processes for producing autoantibodies during infections. Although some autoantibodies are associated with autoimmune diseases, the functions of many autoantibodies remain ...

    Yutaka Sasaki, Naoto Yoshino, Takako Okuwa, Takashi Odagiri in Scientific Reports (2021)

  3. Article

    Open Access

    18F-FDG and 11C-choline uptake in proliferating tumor cells is dependent on the cell cycle in vitro

    Among different PET tracers, 18F-fludeoxyglucose (FDG) and 11C-choline are known to have a high tumor uptake correlated with a high mitotic index of tumor cells. Thus, the uptake of 18F-FDG and 11C-choline may be...

    Motoi Roppongi, Mitsuru Izumisawa, Kazunori Terasaki in Annals of Nuclear Medicine (2019)

  4. No Access

    Reference Work Entry In depth

    Microlensing Surveys for ExoplanetResearch (MOA)

    The first 22 years of a search for exoplanets by gravitational microlensing that is being conducted by the Japan/NZ collaboration known as MOA are described. A range of techniques that was developed in associa...

    Philip Yock, Yasushi Muraki in Handbook of Exoplanets (2018)

  5. No Access

    Living Reference Work Entry In depth

    Microlensing Surveys for Exoplanet Research (MOA)

    The first 22 years of a search for exoplanets by gravitational microlensing that is being conducted by the Japan/NZ collaboration known as MOA are described. A range of techniques that was developed in associa...

    Philip Yock, Yasushi Muraki in Handbook of Exoplanets

  6. Article

    Open Access

    Regional climate pattern during two millennia estimated from annual tree rings of Yaku cedar trees: a hint for solar variability?

    We analyzed trees that have survived on Yaku island (Yakushima) for 2,000 years. Quite surprisingly, the Fourier and wavelet analyses of the annual growth rate identified 2 cycles of periodicities of 11 and (2...

    Yasushi Muraki, Takumi Mitsutani, Shoichi Shibata in Earth, Planets and Space (2015)

  7. Article

    Open Access

    The preparation of an infectious full-length cDNA clone of Saffold virus

    The pathogenicity of Saffold virus (SAFV) among humans still remains unclear, although it was identified as a novel human cardiovirus in 2007. In order to encourage the molecular pathogenetic studies of SAFV, ...

    Toshiki Himeda, Takushi Hosomi, Naeem Asif, Hiroyuki Shimizu in Virology Journal (2011)

  8. No Access

    Article

    Cytokine/chemokine profile in J774 macrophage cells persistently infected with DA strain of Theiler’s murine encephalomyelitis virus (TMEV)

    Theiler’s murine encephalomyelitis virus (TMEV) is a picornavirus and persists in the spinal cords of mice, followed by inflammatory demyelinating disease. Viral persistence is a key determinant for the TMEV-i...

    Toshiki Himeda, Takako Okuwa, Yasushi Muraki, Yoshiro Ohara in Journal of NeuroVirology (2010)

  9. No Access

    Article

    Intracellular localization of influenza C virus NS2 protein (NEP) in infected cells and its incorporation into virions

    RNA segment 7 of influenza C virus encodes two non-structural (NS) proteins, NS1 and NS2. The influenza C virus NS2 protein has been proposed to possess nuclear export activity like that of influenza A and B v...

    Yoshihiko Kohno, Yasushi Muraki, Yoko Matsuzaki, Emi Takashita in Archives of Virology (2009)

  10. No Access

    Article

    Repeated injections of energy in the first 600 ms of the giant flare of SGR 1806–20

    On 27 December last year, SGR1806–20, a soft γ-ray repeater in Sagittarius, released a giant flare that has been called the brightest explosion ever recorded. SGRs are X-ray stars that sporadically emit low-en...

    Toshio Terasawa, Yasuyuki T. Tanaka, Yasuhiro Takei, Nobuyuki Kawai in Nature (2005)

  11. No Access

    Article

    Cyclicity of Solar Activity During the Maunder Minimum Deduced from Radiocarbon Content

    This paper presents the features of the “eleven-year” cycle of radiocarbon content during the period of prolonged sunspot minimum called the Maunder Minimum (1645–1715 AD). Whether or not the Sun had maintained t...

    Hiroko Miyahara, Kimiaki Masuda, Yasushi Muraki, Hideki Furuzawa in Solar Physics (2004)

  12. No Access

    Article

    Wide-Field Camera for Gravitational Microlensing Survey: MOA-cam2

    We have constructed a large, mosaic CCD camera called MOA-cam2 which has 4096 × 6144-pixelsto search for gravitational microlensing events. MOA-cam2 has three4096 × 2048-pixel SITe CCD chips, which have a very...

    Toshifumi Yanagisawa, Yasushi Muraki, Yutaka Matsubara, Fumio Abe in Experimental Astronomy (2000)

  13. No Access

    Article

    Evolutionary Analysis of Influenza C Virus M Genes

    The previous study of the 25 hemagglutinin-esterase (HE) glycoprotein genes of influenza C viruses identified four discrete lineages represented by C/Yamagata/26/81, C/Aichi/1/81, C/Aomori/74 and C/Mississippi...

    Yuichiro Tada, Seiji Hongo, Yasushi Muraki, Kanetsu Sugawara in Virus Genes (1997)