Akiyama, Tomoyuki, Yoneda, Masato, Inamori, Masahiko, Iida, Hiroshi, Endo, Hiroki, Hosono, Kunihiro, ...
Abstract Background The association between obesity and the risk of Barrett's esophagus (BE) is unclear. Furthermore, the association between visceral obesity and the risk of BE is entirely unknown....
Exploring the forgetting mechanisms in working memory: Evidence from a reasoning span test (2009)
Saito, Satoru, Jarrold, Christopher, Riby, Deborah M.
This is an electronic version of an article published in [Saito, S., C. Jarrold, and D. M. Riby. 2009. Exploring the forgetting mechanisms in working memory: Evidence from a reasoning span test....
Akiyama, Tomoyuki, Inamori, Masahiko, Iida, Hiroshi, Endo, Hiroki, Hosono, Kunihiro, Yoneda, Kyoko, ...
Abstract Background We aimed to estimate whether the macroscopic extent of gastric mucosal atrophy is associated with a risk for esophageal squamous cell carcinoma using a case-control study in...
Kirikoshi, Hiroyuki, Saito, Satoru, Yoneda, Masato, Fujita, Koji, Mawatari, Hironori, Uchiyama, Takashi, ...
Abstract Background Spontaneous rupture is rare complication of hepatocellular carcinoma (HCC) with high mortality rate in cirrhotic cases. The aim of this study was to determine the factors...
Ayako Haraguchi, Yasukazu Ogai, Eiichi Senoo, Satoru Saito, Yoshihiro Suzuki, Aihide Yoshino, ...
Objective: To demonstrate the usefulness of the Addiction Severity Index Japanese Version (ASI-J) in Japanese alcohol-dependent individuals. The ASI is a frequently used clinical and research...
Akiyama, Tomoyuki, Inamori, Masahiko, Iida, Hiroshi, Mawatari, Hironori, Endo, Hiroki, Hosono, Kunihiro, ...
Abstract Background Evidence regarding the association between alcohol consumption and the gastro-esophageal reflux disease (GERD) spectrum has been conflicting. We examined the association between...
Plasma Pentraxin3 is a Novel Marker for Nonalcoholic Steatohepatitis (NASH) (2008)
Yoneda, Masato, Uchiyama, Takashi, Kato, Shingo, Endo, Hiroki, Fujita, Koji, Yoneda, Kyoko, ...
Abstract Background The changes in the liver in nonalcoholic fatty liver disease (NAFLD) range over a wide spectrum, extending from steatosis to steatohepatitis (NASH). However it has remained...
Yoneda, Masato, Hotta, Kikuko, Nozaki, Yuichi, Endo, Hiroki, Uchiyama, Takashi, Mawatari, Hironori, ...
Abstract Background Genetic factors as well as environmental factors are important in the development of NAFLD and in this study we investigated associations between polymorphisms of peroxisome...
The Hirota bilinear difference equation plays the central role in the study of integrable nonlinear systems. A direct correspondence of the large symmetry characterizing this classical system to the...
On recurrence equations associated with invariant varieties of periodic points (2006)
A recurrence equation is a discrete integrable equation whose solutions are all periodic and the period is fixed. We show that infinitely many recurrence equations can be derived from the information...
Invariant Varieties of Periodic Points for the Discrete Euler Top (2006)
The behaviour of periodic points of discrete Euler top is studied. We derive invariant varieties of periodic points explicitly. When the top is axially symmetric they are specified by some particular...
Invariant varieties of periodic points for some higher dimensional integrable maps (2006)
By studying various rational integrable maps on $\mathbf{\hat C}^d$ with $p$ invariants, we show that periodic points form an invariant variety of dimension $\ge p$ for each period, in contrast to...
Invariant Varieties of Periodic Points for the Discrete Euler Top (2006)
The behaviour of periodic points of discrete Euler top is studied. We derive invariant varieties of periodic points explicitly. When the top is axially symmetric they are specified by some particular...
The nature of manifolds of periodic points for higher dimensional integrable maps (2005)
By studying periodic points for rational maps on $\bm{C}^d$ with $p$ invariants, we show that they form an invariant variety of dimension $p$ if the periodicity conditions are `fully correlated', and...
The nature of manifolds of periodic points for higher dimensional integrable maps II (2005)
We study periodicity conditions of a rational map on $\bm{C}^d$ with $p$ invariants and show that a set of isolated periodic points and an algebraic variety of finife dimension do not exist in one...
Intersecting D-brane states derived from the KP theory (2005)
Yamaguchi, Hironori, Saito, Satoru
A general scheme to find tachyon boundary states is developed within the framework of the theory of KP hierarchy. The method is applied to calculate correlation function of intersecting D-branes and...
A Realization of Matrix KP Hierarchy by Coincident D-brane States (2004)
Yamaguchi, Hironori, Saito, Satoru
We describe the Sato-Wilson type formulation of the KP hierarchy within the framework of closed string theory. A matrix generalization of this formalism is shown to allow natural interpretation of...
D-brane correlators as solutions of Hirota-Miwa equation (2004)
We present a tachyon field, which simply connects to the calculus of the tachyon condensation. The tachyon field acts on any bare boundary state: the Neumann or the Dirichlet state, and generates the...
Nambu-Hamiltonian flows associated with discrete maps (2004)
Saito, Satoru, Shudo, Akira, Yamamoto, Jun-ichi, Yoshida, Katsuhiko
For a differentiable map $(x_1,x_2,..., x_n)\to (X_1,X_2,..., X_n)$ that has an inverse, we show that there exists a Nambu-Hamiltonian flow in which one of the initial value, say $x_n$, of the map...
Hyper-elliptic Nambu flow associated with integrable maps (2004)
Saito, Satoru, Saitoh, Nokiko, Yoshida, Katsuhiko
We study hyper-elliptic Nambu flows associated with some $n$ dimensional maps and show that discrete integrable systems can be reproduced as flows of this class.
Soliton equations solved by the boundary CFT (2003)
Soliton equations are derived which characterize the boundary CFT a la Callan et al. Soliton fields of classical soliton equations are shown to appear as a neutral bound state of a pair of soliton...
A Hamiltonian Flows Associated with Two Dimensional Map (2001)
Saito, Satoru, Shudo, Akira, Yamamoto, Jun-ichi, Yoshida, Katsuhiko
For a given differentiable map $(x,y)\to (X(x,y),Y(x,y))$, which has an inverse, we show that there exists a Hamiltonian flow in which x plays the role of the time variable while y is fixed.
A Characterization of Discrete Time Soliton Equations (2001)
Saito, Satoru, Saitoh, Noriko, Yamamoto, Jun-ichi, Yoshida, Katsuhiko
We propose a method to characterize discrete time evolution equations, which generalize discrete time soliton equations, including the $q$-difference Painlev\'e IV equations discussed recently by...
Symmetrization of Berezin Star Product and Path-Integral Quantization (1999)
Saito, Satoru, Wakatsuki, Kazunori
We propose a new star pruduct which interpolates the Berezin and Moyal quantization. A multiple of this product is shown to reduce to a path-integral quantization in the continuous time limit. In...
Supersymmetric extension of Moyal algebra and its application to the matrix model (1999)
We construct operator representation of Moyal algebra in the presence of fermionic fields. The result is used to describe the matrix model in Moyal formalism, that treat gauge degrees of freedom and...
A Realization of Discrete Geometry by String Model (1998)
A realization of discrete conjugate net is presented by using correlation functions of strings in a gauge covariant form.
Analytical Study of the Julia Set of a Coupled Generalized Logistic Map (1998)
Yoshida, Katsuhiko, Saito, Satoru
A coupled system of two generalized logistic maps is studied. In particular influence of the coupling to the behaviour of the Julia set in two dimensional complex space is analyzed both analytically...
Shinzawa, Nobuhiko, Saito, Satoru
The Hirota bilinear difference equation is generalized to discrete space of arbitrary dimension. Solutions to the nonlinear difference equations can be obtained via B\"acklund transformation of the...
The Correspondence between Discrete Surface and Difference Geometry of the KP-hierarchy (1997)
The correspondence between two geometrical descriptions of the KP-hierarchy, one by discrete surface and another by difference analogue of differential geometry, is given.
Dual Resonance Model Solves the Yang-Baxter Equation (1997)
The duality of dual resonance models is shown to imply that the four point string correlation function solves the Yang-Baxter equation. A reduction of transfer matrices to $A_l$ symmetry is described...
Complex Analysis of a Piece of Toda Lattice (1997)
Saito, Satoru, Saitoh, Noriko, Konuma, Hisao, Yoshida, Katsuhiko
We study a small piece of two dimensional Toda lattice as a complex dynamical system. In particular the Julia set, which appears when the piece is deformed, is shown analytically how it disappears as...
Phase Space Discretization and Moyal Quantization (1995)
The Moyal quantization is described as a discretization of the classical phase space by using difference analogue of vector fields. Difference analogue of Lie brackets plays the role of Heisenberg...
$W_{1+\infty}$ as a Discretization of Virasoro Algebra (1994)
It is shown that the $W_{1+\infty}$ algebra is nothing but the simplest subalgebra of a $q$-discretized \vi\ algebra, in the language of the KP hierarchy explicitly.
Saitoh, Noriko, Saito, Satoru, Shimizu, Akinobu
A difference analogue of the logistic equation, which preserves integrability, is derived from Hirota's bilinear difference equation. The integrability of the map is shown to result from the large...
Quantum Hall effect from soliton equation (1993)
Hiro-Oka, Hideaki, Saito, Satoru
The Laughlin function of quantum Hall effect is shown to satisfy Hirota's bilinear difference equation with certain coefficients a little different from the KP hierarchy. Vertex operators which...
Discretization of Virasoro Algebra (1993)
A $q$-discretization of \vi\ algebra is studied which reduces to the ordinary \vi\ algebra in the limit of $q \ra 1$. This is derived starting from the Moyal bracket algebra, hence is a kind of...
An in vitro model of hepatitis C virion production
Heller, Theo, Saito, Satoru, Auerbach, Jonathan, Williams, Tarice, Moreen, Tzivia Rachel, Jazwinski, Allison, ...
The hepatitis C virus (HCV) is a major cause of liver disease worldwide. The understanding of the viral life cycle has been hampered by the lack of a satisfactory cell culture system. The development...
An in vitro model of hepatitis C virion production
Heller, Theo, Saito, Satoru, Auerbach, Jonathan, Williams, Tarice, Moreen, Tzivia Rachel, Jazwinski, Allison, ...
The hepatitis C virus (HCV) is a major cause of liver disease worldwide. The understanding of the viral life cycle has been hampered by the lack of a satisfactory cell culture system. The development...
Production of Infectious Hepatitis C Virus of Various Genotypes in Cell Cultures▿
Kato, Takanobu, Matsumura, Takuya, Heller, Theo, Saito, Satoru, Sapp, Ronda K., Murthy, Krishna, ...
A unique hepatitis C virus (HCV) strain JFH-1 has been shown to replicate efficiently in cell culture with production of infectious HCV. We previously developed a DNA expression system containing HCV...
Yoneda, Masato, Hotta, Kikuko, Nozaki, Yuichi, Endo, Hiroki, Uchiyama, Takashi, Mawatari, Hironori, ...
Akiyama, Tomoyuki, Inamori, Masahiko, Iida, Hiroshi, Mawatari, Hironori, Endo, Hiroki, Hosono, Kunihiro, ...
Plasma Pentraxin3 is a Novel Marker for Nonalcoholic Steatohepatitis (NASH)
Yoneda, Masato, Uchiyama, Takashi, Kato, Shingo, Endo, Hiroki, Fujita, Koji, Yoneda, Kyoko, ...
Kirikoshi, Hiroyuki, Saito, Satoru, Yoneda, Masato, Fujita, Koji, Mawatari, Hironori, Uchiyama, Takashi, ...
Levovist ultrasonography imaging in intracystic hemorrhage of simple liver cyst
Akiyama, Tomoyuki, Inamori, Masahiko, Saito, Satoru, Takahashi, Hirokazu, Yoneda, Masato, Fujita, Koji, ...
The differential diagnosis between intracystic hemorrhage and cystadenocarcinoma of the liver is often difficult even with the use of various imaging modalities. A 73-year-old woman was admitted to...
Akiyama, Tomoyuki, Inamori, Masahiko, Iida, Hiroshi, Endo, Hiroki, Hosono, Kunihiro, Yoneda, Kyoko, ...