Arita, Ryotaro, Ikeda, Hiroaki
We study whether Fermi-surface (FS) nesting can give rise to high-temperature superconductivity in iron pnictides. Starting with ab initio construction of an effective four-orbital model, we employ...
Wakita, Daiko, Chamoto, Kenji, Zhang, Yue, Narita, Yoshinori, Noguchi, Daisuke, Ohnishi, Hideaki, ...
We have evaluated the capacity of a novel, nanoparticle-based tumor vaccine to eradicate established tumors in mice. C57BL/6 mice were intradermally (i.d.) inoculated with ovalbumin (OVA)-expressing...
Fourth Order Perturbation Theory for Normal Selfenergy in Repulsive Hubbard Model (2005)
Shinkai, Shogo, Ikeda, Hiroaki, Yamada, Kosaku
We investigate the normal selfenergy and the mass enhancement factor in the Hubbard model on the two-dimensional square lattice. Our purpose in this paper is to evaluate the mass enhancement factor...
Analysis of Superconductivity in d-p Model on Basis of Perturbation Theory (2005)
Sasaki, Sotaro, Ikeda, Hiroaki, Yamada, Kosaku
We investigate the mass enhancement factor and the superconducting transition temperature in the d-p model for the high-$\Tc$ cuprates. We solve the \'Eliashberg equation using the third-order...
Calculation of Penetration Depth and $T_c$ in $\kappa $-$($ET$)_2$Cu(NCS)$_2$ under Pressure (2004)
Tanaka, Kazunori, Ikeda, Hiroaki, Yamada, Kosaku
The pressure dependence of the inverse square of the magnetic penetration depth $\lambda ^{- 2}$ in $\kappa$-$($ET$)_2$Cu(NCS)$_2$ was measured by Larkin, et al According to the paper, $\lambda ^{-...
Interplay of crystal field structures with $f^2$ configuration to heavy fermions (2004)
Kusunose, Hiroaki, Ikeda, Hiroaki
We examine a relevance between characteristic of crystal field structures and heavily renormalized quasiparticle states in the $f^0$-$f^1$-$f^2$ Anderson lattice model. Using a slave-boson mean-field...
Perturbation Analysis of Superconductivity in the Trellis-Lattice Hubbard Model (2004)
Sasaki, Sotaro, Ikeda, Hiroaki, Yamada, Kosaku
We investigate pairing symmetry and transition temperature in the trellis-lattice Hubbard model. We solve the \'Eliashberg equation using the third-order perturbation theory with respect to the...
Theory of Superconductivity in PuCoGa5 (2004)
Tanaka, Kazunori, Ikeda, Hiroaki, Yamada, Kosaku
Recently, superconductivity in PuCoGa5 was discovered. It has the same crystal structure as CeMIn5(M=Ir, Co, Rh). The electron correlation in PuCoGa5 is estimated to be weak compared with CeMIn5, and...
Possible Pairing Symmetry of Superconductor Na_xCoO_2yH_2O (2004)
Nisikawa, Yunori, Ikeda, Hiroaki, Yamada, Kosaku
To discuss a possibility that the superconductivities in Na_xCoO_2yH_2O are induced by the electron correlation, we investigate the possible pairing symmetry based on the single-band Hubbard model...
WATANABE, Shinji, IKEDA, Ryo, IKEDA, Hiroaki, MURATA, Miki, MASUDA, Yuzuru, 渡邉, 眞次, ...
Polymer microspheres with mercapto groups were synthesized by the polycondensation of 1,3-propanedithiol and 1,6-dibromohexane in the presence of a poly[styrene (S)?alkylacrylamide (RAM)] latices....
Hoshino, Akihiko, Tsuji, Takemasa, Matsuzaki, Junko, Jinushi, Takafumi, Ashino, Shigeru, Teramura, Takashi, ...
When wild-type BALB/c mice were transferred with OVA-specific Th2 cells followed by OVA inhalation, a severe eosinophilia, mucus hypersecretion and airway hyper-responsiveness (AHR) was induced in...
Perturbation Theory for a Repulsive Hubbard Model in Quasi-One-Dimensional Superconductors (2003)
Sasaki, Sotaro, Ikeda, Hiroaki, Yamada, Kosaku
We investigate pairing symmetry and a transition temperature in a quasi-one-dimensional repulsive Hubbard model. We solve the Eliashberg equation using the third-order perturbation expansion with...
Theory of Superconductivity in Strongly Correlated Electron Systems (2003)
Yanase, Yoichi, Jujo, Takanobu, Nomura, Takuji, Ikeda, Hiroaki, Hotta, Takashi, Yamada, Kosaku
In this article we review essential natures of superconductivity in strongly correlated electron systems (SCES) from a universal point of view. After summarizing experimental results on typical...
Ikeda, Hiroaki, Nisikawa, Yunori, Yamada, Kosaku
Stimulated by the recent finding of Na$_{0.35}$CoO$_2$.1.3H$_2$O superconductor, we investigate superconducting instabilities on a 2D triangular lattice in the repulsive Hubbard model. Using the...
Fukazawa, Hirono, Ikeda, Hiroaki, Yamada, Kosaku
We evaluate the dominant superconducting pairing symmetry in some 3-dimensional cubic lattice struct ures within the third-order perturbation theory with respect to the on-site coulomb repulsion. We...
Nisikawa, Yunori, Ikeda, Hiroaki, Yamada, Kosaku
We reformulate the Eliashberg's equation for the superconducting transition within the quasi-particle description, which takes account of the heavy electron mass. We discuss the superconductivity of...
Effects of trampling on morphology and ethylene production in asiatic plantain (2002)
Yukari Sunohara, Hiroaki Ikeda, Satoru Tsukagoshi, Yoshihiro Murata, Naoto Sakurai, Yutaka Noma
The effects of simulated trampling on shoot morphology and ethylene production of a trampling-tolerant perennial forb asiatic plantain were investigated. Trampling increased the number of leaves or...
We propose a novel spin density wave (SDW) state as a possible mechanism of the anomalous antiferromagnetism, so-called the micromagnetism, in URu_2Si_2 below 17.5[K]. In this new SDW, the...
Reply to the Comment by Kiselev and Bouis (1999)
The possibility of the ferromagnetic state modifies the phase diagram in Phys.Rev.Lett.81,3723(1998), as Kiselev and Bouis have pointed out. However, the unconventional SDW that has been proposed in...
Ikeda, Hiroaki, Miyake, Kazumasa
It is shown on the basis of the Fermi liquid theory that the s-wave scattering potential due to nonmagnetic impurity is strongly enhanced by the mass enhancement factor $1/z$. As a result the...
A Theory of Anisotropic Semiconductor of Heavy Fermions (1996)
Ikeda, Hiroaki, Miyake, Kazumasa
It is demonstrated that a {\veck}-dependence of the hybridization matrix element between $f$- and conduction electrons can give rise to an anisotropic hybridization gap of heavy fermions if the...
Mutated mitogen-activated protein kinase: A tumor rejection antigen of mouse sarcoma
Ikeda, Hiroaki, Ohta, Nobuyoshi, Furukawa, Keiko, Miyazaki, Hiroshi, Wang, Lijie, Furukawa, Koichi, ...
The molecular basis of the polymorphic tumor rejection antigens of chemically induced sarcomas of inbred mice remains a mystery, despite the discovery of these antigens over 40 years ago and their...
Nishikawa, Hiroyoshi, Tanida, Koji, Ikeda, Hiroaki, Sakakura, Miho, Miyahara, Yoshihiro, Aota, Takumi, ...
Recognition of altered self-antigens in tumor cells by lymphocytes forms the basis for antitumor immune responses. The effector cells in most experimental tumor systems are CD8+ T cells that...
Nishikawa, Hiroyoshi, Kato, Takuma, Tanida, Koji, Hiasa, Atsunori, Tawara, Isao, Ikeda, Hiroaki, ...
A variety of tumor-derived antigens have been defined by IgG antibodies in tumor bearers' sera with serological identification of antigens by recombinant expression cloning (SEREX), a serological...
Mutated mitogen-activated protein kinase: A tumor rejection antigen of mouse sarcoma
Ikeda, Hiroaki, Ohta, Nobuyoshi, Furukawa, Keiko, Miyazaki, Hiroshi, Wang, Lijie, Furukawa, Koichi, ...
The molecular basis of the polymorphic tumor rejection antigens of chemically induced sarcomas of inbred mice remains a mystery, despite the discovery of these antigens over 40 years ago and their...
Nishikawa, Hiroyoshi, Tanida, Koji, Ikeda, Hiroaki, Sakakura, Miho, Miyahara, Yoshihiro, Aota, Takumi, ...
Recognition of altered self-antigens in tumor cells by lymphocytes forms the basis for antitumor immune responses. The effector cells in most experimental tumor systems are CD8+ T cells that...
Nishikawa, Hiroyoshi, Kato, Takuma, Tanida, Koji, Hiasa, Atsunori, Tawara, Isao, Ikeda, Hiroaki, ...
A variety of tumor-derived antigens have been defined by IgG antibodies in tumor bearers' sera with serological identification of antigens by recombinant expression cloning (SEREX), a serological...
Definition of target antigens for naturally occurring CD4+ CD25+ regulatory T cells
Nishikawa, Hiroyoshi, Kato, Takuma, Tawara, Isao, Saito, Kanako, Ikeda, Hiroaki, Kuribayashi, Kagemasa, ...
The antigenic targets recognized by naturally occurring CD4+ CD25+ regulatory T cells (T reg cells) have been elusive. We have serologically defined a series of broadly expressed self-antigens...
前田, 哲, マエダ, サトル, MAEDA, Satoru, 檜垣, 泰彦, ヒガキ, ヤスヒコ, HIGAKI, Yasuhiko, ...
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