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Article type: Cover
2013 Volume 68 Issue 11 Pages
Cover1-
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Kazuhiko Misawa
Article type: Article
2013 Volume 68 Issue 11 Pages
713-
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Shigeyuki Komura, Masayuki Imai
Article type: Article
2013 Volume 68 Issue 11 Pages
714-723
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Since the notion of lipid rafts has been proposed, the traditional view of biomembranes based on the fluid mosaic model has been renewed. In the raft model, dynamical heterogeneity occurring in multi-component lipid membranes plays an essential role. In this review article, we mainly discuss lateral phase separation in biomembranes and vesicles, and provide with an overview of the research trend during the past decade. We shall mainly review the experimental works from the viewpoint of physical chemistry, and interpret these phenomena using soft matter physics. We first explain phase behavior and conformation of multi-component lipid bilayer membranes. By formulating the hydrodynamics of a fluid membrane including the surrounding solvent, we discuss the domain growth-law and concentration fluctuations in membranes.
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Hisakazu Minakata
Article type: Article
2013 Volume 68 Issue 11 Pages
723-733
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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A summary is given mainly from experimental aspects for development of physics of neutrino masses and lepton flavor mixing over the last 15 years. Starting from the 1998 discovery of neutrino oscillation and measurement of θ_<23> and Δm^2_<32> by the Super-Kamiokande atmospheric neutrino experiment, I describe measurement of θ_<12> and Δm^2_<21> by the KamLAND reactor and the solar neutrino experiments, and then determination of θ_<13> executed in the last one year or so. Thus, all the three mixing angles in the three-flavor mixing scheme of leptons have been determined. Implications of the large values of the lepton mixing angles compared to quark's as well as possible goal of the flavor physics is discussed. Finally, a near future perspective is given for determining the remaining unknowns, lepton CP violating phase and the neutrino mass pattern.
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Hideo Yano, Makoto Tsubota
Article type: Article
2013 Volume 68 Issue 11 Pages
734-738
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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In superfluids with order parameters of an amplitude and a phase, superfiows are driven by the gradient of the phase. Since only phase defects with a 2π rotation force the superfiows turbulent, the superfluid turbulence (quantum turbulence) consists only of quantized circulations around the defects, namely quantized vortices. This characteristics enables to explore turbulence with respect to motions of quantized vortices. In experiments, quantum turbulence can be driven by object motions with attached vortices. Using this method, we have investigated the motions of quantized vortices in quantum turbulence, as well as the motions of vortex rings emitted from quantum turbulence. In this letter, we report vortex motions in superfluid ^4He turbulence from both experimental and numerical studies.
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Aya Ishihara, Shigeru Yoshida
Article type: Article
2013 Volume 68 Issue 11 Pages
738-743
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Ultra-high energy neutrinos are produced in the extreme objects in a far Universe. The IceCube neutrino observatory is the experiment to establish the cosmic neutrinos as the astronomical messenger. IceCube has recently detected 2 ultra-high energy neutrinos of 〜1 PeV (=10^<15> eV). The probability these events are fully explained by the atmospheric background is 0.3%. This is a first indication of the extraterrestrial neutrinos associated with ultra-high energy cosmic ray emissions. This detection marks a milestone in the field of neutrino astrophysics.
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Tsuneya Ando
Article type: Article
2013 Volume 68 Issue 11 Pages
744-746
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Kazuaki Sakoda, Kazushi Kanoda
Article type: Article
2013 Volume 68 Issue 11 Pages
747-749
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Satoru Ikeuchi
Article type: Article
2013 Volume 68 Issue 11 Pages
750-751
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Kohsuke Yagi
Article type: Article
2013 Volume 68 Issue 11 Pages
752-754
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Takahisa Amemiya
Article type: Article
2013 Volume 68 Issue 11 Pages
754-756
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Shuji Abe
Article type: Article
2013 Volume 68 Issue 11 Pages
757-
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]
Article type: Article
2013 Volume 68 Issue 11 Pages
757-758
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]
Article type: Article
2013 Volume 68 Issue 11 Pages
758-759
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]
Article type: Article
2013 Volume 68 Issue 11 Pages
759-
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 11 Pages
760-
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 11 Pages
760-765
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 11 Pages
765-766
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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[in Japanese]
2013 Volume 68 Issue 11 Pages
766-767
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 11 Pages
768-788
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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Article type: Appendix
2013 Volume 68 Issue 11 Pages
789-790
Published: November 05, 2013
Released on J-STAGE: October 17, 2019
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