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Article type: Cover
2004 Volume 59 Issue 6 Pages
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Article type: Index
2004 Volume 59 Issue 6 Pages
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Article type: Index
2004 Volume 59 Issue 6 Pages
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Tetsuo Hatsuda
Article type: Article
2004 Volume 59 Issue 6 Pages
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Masatoshi Namiki
Article type: Article
2004 Volume 59 Issue 6 Pages
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Naoki Itoh, Yasushi Suto, Tetsu Kitayama
2004 Volume 59 Issue 6 Pages
349-357
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Galaxy clusters have been observed mainly in the optical and X-ray regions, and played an important role in probing the universe in addition to the cosmic microwave background (CMB) and the three-dimensional distribution of galaxies. In recent years, another method of observing galaxy clusters in mm and sub-mm bands, the Sunyaev-Zel'dovich (SZ) effect, has made significant progress. This is based on the inverse Compton scattering off the CMB photons due to the high-temperature intracluster gas, which was proposed in early 1970's. This method has a remarkable advantage that the observed flux is independent of the distance to the cluster. Recent significant progress in detectors promises that the SZ effect will indeed lead the cluster observation in this decade. This article presents a summary of the past and the present researches in the SZ effect and discusses the future prospects, with particular emphasis on theoretical and observational achievements in Japan.
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Shigeru Yoshida
2004 Volume 59 Issue 6 Pages
358-361
Published: June 05, 2004
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The long-time standing idea that a detection of cosmic neutrino radiation opens a new window to explore ultra-high energy universe has now begun to see its realization. We have found that polar ice provides an inexpensive volume of an interaction target for cosmic neutrinos whose intensity is expected to be dominated by the vast cosmic ray background. The IceCube detector, a neutrino observatory with 1km
3 target volume, will start its construction this year by the international collaboration of US-Europe-Japan. Here we describe our motivation of the neutrino detection as well as the experiment overview.
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Hiroaki Matsui, Takashi Takahashi
2004 Volume 59 Issue 6 Pages
362-365
Published: June 05, 2004
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The recent remarkable improvement in the resolution of angle-resolved photoemission spectroscopy (ARPES) has made a great contribution to our better understanding of novel properties of strongly correlated electron systems. We report here the first direct observation of Bogoliubov quasiparticles (BQPs) in high-T
C superconductor by ARPES. The good quantitative agreement in the band dispersion of BQPs and the coherence factors between the experiment and the prediction from the BCS theory indicates the basic validity of the BCS framework in describing the superconductivity in high-T
C superconductors.
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Makoto Yoneya
2004 Volume 59 Issue 6 Pages
366-369
Published: June 05, 2004
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Liquid crystal materials that form complex nano-structured mesophases have attracted increasing interest recently. Here, I describe molecular dynamics simulation studies of nano-structures of thermotropic cubic phase forming liquid crystal molecules, BABH8 and PFMI6. A model for the cubic phase structure was proposed with respect to BABH8 and spontaneous formation of a structure similar to this model was observed in the simulation for PFMI6.
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Shigehiro Komura, Takayoshi Takeda, Hideki Seto, Michihiro Nagao
2004 Volume 59 Issue 6 Pages
370-374
Published: June 05, 2004
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Thermal fluctuation of low dimensional objects in microemulsion systems, such as worm-like micelles and membranes in binary and ternary amphiphilic microemulsion systems, has been studied by means of neutron spin echo spectrometry. The results show that the relaxation of the deformation in low dimensional objects slows down systematically as the dimension of the low dimensional objects increases from 0, 1, to 2. This method of study may be applicable not only to one- or two-dimensional objects but also to fractal objects that exist in polymer or biological systems.
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Koji Matsukado
2004 Volume 59 Issue 6 Pages
375-379
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Yoshitaka Tanimura
Article type: Article
2004 Volume 59 Issue 6 Pages
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hideaki Takabe
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2004 Volume 59 Issue 6 Pages
381-382
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[in Japanese]
Article type: Article
2004 Volume 59 Issue 6 Pages
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
383-387
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
387-391
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
391-392
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
392-393
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
395-398
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
399-404
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
405-406
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
407-409
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
410-418
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
421-424
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Article type: Appendix
2004 Volume 59 Issue 6 Pages
425-434
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