Butsuri

Online ISSN : 2423-8872
Print ISSN : 0029-0181
ISSN-L : 0029-0181

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Volume 67, Issue 10

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[title in Japanese]

Article type: Cover
2012 Volume 67 Issue 10 Pages Cover1-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_Cover1

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[title in Japanese]

2012 Volume 67 Issue 10 Pages App1-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_App1

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[title in Japanese]

Article type: Index
2012 Volume 67 Issue 10 Pages Toc1-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_Toc1

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[title in Japanese]

Article type: Index
2012 Volume 67 Issue 10 Pages Toc3-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_Toc3

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages 677-678
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_677

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Request from the First Editor-in-Chief at the Start of PTEP

Norisuke Sakai

Article type: Article
2012 Volume 67 Issue 10 Pages 679-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_679

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Heavy-Ion Beam Mutagenesis : From Plant Breeding to Gene Function Analysis

Tomoko Abe, Tomonari Hirano, Yusuke Kazama

Article type: Article
2012 Volume 67 Issue 10 Pages 680-684
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_680

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At RIKEN, we have developed a unique technology for mutation induction using heavy-ion beams from particle accelerators at the RI Beam Factory (RIBF). This development was achieved through an efficient synergistic link between agricultural science and accelerator physics. At relatively low doses, ion beams induce mutations at a high rate without severely inhibiting growth. The ion beam is a highly-efficient tool for improving crops through mutation breeding. We use high-throughput DNA sequencing techniques such as next-generation sequence instruments and microarray technologies for analysis of gene mutations. Mutants have become more and more useful and important in modern genetic studies, enabling the discovery of genes that control important traits, and revealing the functions and mechanisms underlying their operations. The discovery of genes using mutants may lead to the emergence of a new field in biology, 'Mutagenomics'.

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First-Principles Calculation to Explore Mechanisms of Coherent Phonon Generation(Current Topics)

Yasushi Shinohara, Tomohito Otobe, Jun-Ichi Iwata, Kazuhiro Yabana

Article type: Article
2012 Volume 67 Issue 10 Pages 685-689
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_685

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Coherent phonon is a coherent vibration of atoms in macroscopic spatial scale, generated by a laser pulse whose duration is shorter than the oscillation period of the phonon. The authors have been developing an ab-initio computational method for femto-second quantum dynamics of electrons and nuclei in crystalline solid based on the time-dependent density functional theory. We apply the method to a crystalline Si under irradiation of ultrashort laser pulse and show that it describes the mechanism of coherent phonon generation quantitatively.

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Diverse Quantum Phases of Bose-Fermi Mixtures in an Optical Lattice(Current Topics)

Makoto Yamashita, Kensuke Inaba

Article type: Article
2012 Volume 67 Issue 10 Pages 690-695
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_690

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We review our recent works on Bose-Fermi mixtures trapped in a three-dimensional optical lattice in collaboration with the group of Prof. Yoshiro Takahashi at Kyoto University. The quantitative comparison between the experiment and the theory reveals that, in the highly-correlated Mott-insulator regime, the interaction between bosons and fermions causes the diverse quantum phases, namely the mixed Mott state, the phase-separated state, and the composite-particle state. The thermodynamic properties of the mixtures also show the quite different features depending on whether the interspecies interaction is repulsive or attractive.

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Spectral Analysis for Distribution of Weakly-Localized States at Organic Semiconductor Interfaces(Current Topics)

Tatsuo Hasegawa, Hiroyuki Matsui, Andrey S. Mishchenko

Article type: Article
2012 Volume 67 Issue 10 Pages 695-699
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_695

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We develop a method to study the density of localized states at organic semiconductor interfaces from the fine analyses of electron spin resonance (ESR) spectra that are dominated by the interactions between electronic spins and nuclear spins. The ESR spectra from the carriers trapped at low temperature are characterized by the statistical nature, due to the hyperfine interactions with a number of nuclear spins within the molecules and the spatial extension of the carrier states. We obtain the distributions of trapped carriers over both their degree of localization and their binding energy by resolving the spectra into the Gaussian components.

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Extracting Rigidity of Glasses out of Liquids(Current Topics)

Hajime Yoshino

Article type: Article
2012 Volume 67 Issue 10 Pages 699-705
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_699

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In this article we scketch a recently developed, first principle theoretical scheme to compute the rigidity, namely the shearmodulus of structural glasses. Somewhat paradoxically the method allows us to extract the rigidity of glasses just from the knowledge of liquids.

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Driven Translocation of Polymer(Current Topics)

Takahiro Sakaue, Takuya Saito

Article type: Article
2012 Volume 67 Issue 10 Pages 705-709
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_705

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When a flexible chain is pulled or sucked, it can initially respond only locally, and sequential nonequilibrium processes with large conformational distortion follow in line with the propagation of tensile force along the chain backbone. By analyzing universal aspects of the dynamical response inherent in chain-like-molecules, we elucidate the dynamical scaling scenario in such situations. From this viewpoint, we highlight the richness and complexity involved in the dynamics of translocation, i.e., macromolecular transport across a pore, actively driven by external forces.

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First Observational Search for PeV-EeV Tau Neutrino from GRB(Current Topics)

Yoichi Asaoka, Makoto Sasaki

Article type: Article
2012 Volume 67 Issue 10 Pages 710-714
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_710

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We report the first observational search for tau neutrinos (ν_τ) from gamma-ray bursts (GRBs) using one of the Ashra light collectors. The Earth-skimming ν_τ technique of imaging Cherenkov tau showers was applied as a detection method. We set stringent upper limits on the ν_τ fluence in PeV-EeV region for 3,780s (between 2.83 and 1.78hr before) and another 3,780s (between 21.2 and 22.2hr after) surrounding GRB081203A triggered by the Swift satellite. This first search for PeV-EeV ν_τ complements other experiments in energy range and methodology, and suggests the prologue of "multi-particle astronomy" with a precise determination of time and location.

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JPSJ Selected Papers in the Latest Issue

Tsuneya Ando

Article type: Article
2012 Volume 67 Issue 10 Pages 715-717
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_715

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[title in Japanese]

[in Japanese]

2012 Volume 67 Issue 10 Pages 718-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_718_1

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[title in Japanese]

[in Japanese]

2012 Volume 67 Issue 10 Pages 718-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_718_2

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 67 Issue 10 Pages 719-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_719_1

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 67 Issue 10 Pages 719-720
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_719_2

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 67 Issue 10 Pages 720-721
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_720

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 67 Issue 10 Pages 721-722
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_721

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 67 Issue 10 Pages 722-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_722

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages 723-726
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_723

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages 727-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_727_1

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[title in Japanese]

[in Japanese]

2012 Volume 67 Issue 10 Pages 727-728
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_727_2

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages 729-730
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_729

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[title in Japanese]

Article type: Bibliography
2012 Volume 67 Issue 10 Pages 731-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_731

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages 732-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_732

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages App2-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_App2

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages 733-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_733

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[title in Japanese]

Article type: Appendix
2012 Volume 67 Issue 10 Pages 734-
Published: October 05, 2012
Released on J-STAGE: October 18, 2019

DOIhttps://doi.org/10.11316/butsuri.67.10_734

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