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Invariant Mass Spectroscopy for the Neutron Rich Nuclei
사토,추경호,방형찬,S. H. Choi,T. Nakamura,Y. Kondo,Y. Nakayama,N. Kobayashi,K. N. Tanaka,S. Deguchi,Y. Kawada,N. Tanaka,T. Sugimoto,T. Motobayashi,H. Sakurai,H. Otsu,N. Aoi,Y. Yanagisawa,S. Takeuchi,N. Fukuda 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
The neutron-rich carbon isotopes ^(19,17)C and a boron isotope ^(14)B are investigated respectively via proton inelastic and charge-exchange reactions on a liquid hydrogen target at around 70 MeV/nucleon at RIKEN. The invariant mass method in inverse kinematics involving coincidence detection of a charged fragment and a neutron both emitted at forward angles is employed to map the energy spectrum above the neutron decay threshold. Several resonance structures are revealed in the invariant mass spectra, and the nature for some of them is discussed from comparisons of differential cross section data with predictions of microscopic DWBA calculations based on spsdpf shell model wave functions and a recent parametrization of semi-microscopic nucleon-nucleus optical model potential (JLMB). By extrapolating the (p,n) cross sections leading to the 1^+ state at 1.27 MeV in ^(141)B to zero momentum transfer the Gamow-Teller transition strength is deduced. The value is found to compare well with that reported in a β-delayed neutron emission study.
Invariant Mass Spectroscopy for the Neutron Rich Nuclei
Satou, Y.,Tshoo, K.,Bhang, H. C.,Choi, S. H.,Nakamura, T.,Kondo, Y.,Nakayama, Y.,Kobayashi, N.,Tanaka, K. N.,Deguchi, S.,Kawada, Y.,Tanaka, N.,Sugimoto, T.,Motobayashi, T.,Sakurai, H.,Otsu, H.,Aoi, N. Korean Physical Society 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.2
Invariant Mass Spectroscopy of 23O via the (p, p′) Reaction in Inverse Kinematics
Satou, Y.,Tshoo, K.,Bhang, H.,Choi, S.,Hwang, J. W.,Nakamura, T.,Kondo, Y.,Nakayama, Y.,Kobayashi, N.,Tanaka, K. N.,Deguchi, S.,Kawada, Y.,Tanaka, N.,Motobayashi, T.,Sakurai, H.,Otsu, H.,Aoi, N.,Takeu Springer-Verlag 2013 Few-body systems Vol.54 No.1
Sox2 contributes to tooth development via Wnt signaling
Lee, M. J.,Kim, E. J.,Otsu, K.,Harada, H.,Jung, H. S. Springer Science + Business Media 2016 Cell and tissue research Vol.365 No.1
<P>The transcription factor Sox2 is a stem cell marker that dictates cell lineage. It has been shown to mark the epithelial stem cells of the continuously growing mouse incisors. Sox2 also interferes with Wnt signaling by binding to beta-catenin, a central mediator of the Wnt pathway. We show that these functions of Sox2 are essential for mouse molar development. Sox2 has previously been shown to play a role in the formation of new teeth from the existing dental epithelium. To assess Sox2 function related to cell migration within a tooth, we monitored cell movement by using a DiI system and observed that DiI moves from molar 1 to molar 2 during tooth development. However, upon temporal knockdown of Sox2, DiI remains in the molar 1 region. This study also provides novel insights into the role of Sox2 and the important validation of Sox2 as a potent target in Wnt signaling during tooth development. Our data reveal that the degradation of Wnt signaling caused by the knockdown of Sox2 results in a lack of cell migration during tooth development.</P>