Y. Nakamura

Publication List Details

Period

1954 - 2009

Number

468

Co-Authors

Wilson loops in very high order lattice perturbation theory (2009)

Nakamura, Y., Perlt, H., Rakow, P. E. L., Schierholz, G., Schiller, A.

We calculate Wilson loops of various sizes up to loop order $n=20$ for lattice sizes of $L^4 (L=4, 6, 8, 12)$ using the technique of Numerical Stochastic Perturbation Theory in quenched QCD. This...

Results from 2+1 flavours of SLiNC fermions (2009)

Bietenholz, W., Bornyakov, V., Cundy, N., Göckeler, M., Horsley, R., Kennedy, A. D., ...

QCD results are presented for a 2+1 flavour fermion clover action (which we call the SLiNC action). A method of tuning the quark masses to their physical values is discussed. In this method the...

Probing the finite temperature phase transition with Nf=2 nonperturbatively improved Wilson fermions (2009)

Bornyakov, V. G., Horsley, R., Morozov, S. M., Nakamura, Y., Polikarpov, M. I., Rakow, P. E. L., ...

The critical temperature and the nature of the QCD finite temperature phase transition are determined for Nf=2 dynamical flavors of nonperturbatively improved Wilson fermions. The calculations are...

Lyman-alpha Blobs Like Company : The Discovery of A Candidate 100 kpc Lyman-alpha Blob Near to A Radio Galaxy with A Giant Lyman-alpha halo, B3 J2330+3927 at z=3.1 (2009)

Matsuda, Y., Nakamura, Y., Morimoto, N., Smail, Ian, De Breuck, C., Ohta, K., ...

We present the discovery of a candidate of giant radio-quiet Lyman-alpha (Lya) blob (RQLAB) in a large-scale structure around a high-redshift radio galaxy (HzRG) lying in a giant Lya halo, B3...

Derivation of non-Markoffian transport equations for trapped cold atoms in nonequilibrium thermal field theory (2009)

Nakamura, Y., Sunaga, T., Mine, M., Okumura, M., Yamanaka, Y.

The non-Markoffian transport equations for the systems of cold Bose atoms confined by a external potential both without and with a Bose-Einstein condensate are derived in the framework of...

Ultrastrong coupling regime of cavity QED with phase-biased flux qubits (2009)

Bourassa, J., Gambetta, J. M., Abdumalikov Jr, A. A., Astafiev, O., Nakamura, Y., Blais, A.

We theoretically study a circuit QED architecture based on a superconducting flux qubit directly coupled to the center conductor of a coplanar waveguide transmission-line resonator. As already shown...

Anomalous State Sandwiched between Fermi Liquid and Charge Ordered Mott-Insulating Phases of Ti4O7 (2009)

Taguchi, M., Chainani, A., Matsunami, M., Eguchi, R., Takata, Y., Yabashi, M., ...

The Magneli phase Ti4O7 exhibits two sharp jumps in resistivity with coupled structural transitions as a function of temperature at Tc1=142 K and Tc2=154 K. We have studied electronic structure...

Electroproduction of the N*(1535) resonance at large momentum transfer (2009)

Braun, V. M., Göckeler, M., Horsley, R., Kaltenbrunner, T., Lenz, A., Nakamura, Y., ...

We report on the first lattice calculation of light-cone distribution amplitudes of the N*(1535) resonance, which are used to calculate the transition form factors at large momentum transfers using...

Non-perturbative improvement of stout-smeared three flavour clover fermions (2009)

Cundy, N., Göckeler, M., Horsley, R., Kaltenbrunner, T., Kennedy, A. D., Nakamura, Y., ...

We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term....

Engineered selection rules for tunable coupling in a superconducting quantum circuit (2009)

Harrabi, K., Yoshihara, F., Niskanen, Antti, Nakamura, Y., Tsai, J.S.

Physical Review B - Condensed Matter and Materials Physics, Article number 020507 Vol.79 Nr.2

Nucleon distribution amplitudes and proton decay matrix elements on the lattice (2008)

Braun, V. M., Göckeler, M., Horsley, R., Kaltenbrunner, T., Nakamura, Y., Pleiter, D., ...

Baryon distribution amplitudes (DAs) are crucial for the theory of hard exclusive reactions. We present a calculation of the first few moments of the leading-twist nucleon DA within lattice QCD. In...

Clover improvement for stout-smeared 2+1 flavour SLiNC fermions: non-perturbative results (2008)

Cundy, N., Göckeler, M., Horsley, R., Kaltenbrunner, T., Kennedy, A. D., Nakamura, Y., ...

We discuss an action in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree level) Symanzik improved gluon...

Extracting the rho resonance from lattice QCD simulations at small quark masses (2008)

Göckeler, M., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., Schierholz, G., ...

Using established relations between the scattering matrix in infinite volume and the two-particle spectrum in a periodic box, we compute the mass and width of the rho meson from simulations of N_f=2...

Non-perturbative renormalization of three-quark operators (2008)

Göckeler, M., Horsley, R., Kaltenbrunner, T., Nakamura, Y., Pleiter, D., Rakow, P. E. L., ...

High luminosity accelerators have greatly increased the interest in semi-exclusive and exclusive reactions involving nucleons. The relevant theoretical information is contained in the nucleon...

Optical probe of carrier doping by X-ray irradiation in organic dimer Mott insulator $\kappa$-(BEDT-TTF)$_{2}$Cu[N(CN)$_{2}]$Cl (2008)

Sasaki, T., Yoneyama, N., Nakamura, Y., Kobayashi, N., Ikemoto, Y., Moriwaki, T., ...

We investigated the infrared optical spectra of an organic dimer Mott insulator $\kappa$-(BEDT-TTF)$_{2}$Cu[N(CN)$_{2}$]Cl, which was irradiated with X-rays. We observed that the irradiation caused a...

Partial Discharge Inception Characteristic and Charge Behavior for Magnet Wire under Repetitive Inverter Surge Voltage Condition (2008)

Shimizu, F., Nakamura, Y., Inano, H., Hayakawa, N., Okubo, H.

In this paper, we discussed partial discharge (PD) inception characteristics and mechanisms of magnet wires for inverter-fed motor under repetitive surge voltage application. Experimental results...

The electric dipole moment of the nucleon from simulations at imaginary vacuum angle theta (2008)

Horsley, R., Izubuchi, T., Nakamura, Y., Pleiter, D., Rakow, P. E. L., Schierholz, G., ...

We compute the electric dipole moment of proton and neutron from lattice QCD simulations with N_f=2 flavors of dynamical quarks at imaginary vacuum angle theta. The calculation proceeds via the CP...

Flux-driven Josephson parametric amplifier (2008)

Yamamoto, T., Inomata, K., Watanabe, M., Matsuba, K., Miyazaki, T., Oliver, W. D., ...

We have developed a Josephson parametric amplifier, comprising a superconducting coplanar waveguide resonator terminated by a dc SQUID (superconducting quantum interference device). An external field...

Mechanical Challenges for Further Humanoid Robot Evolution (2008)

Y. Nakamura, M. Okada, T. Shinohara, T. Gotoh, S. Ban

In this paper, we develop two noble mechanisms for improving the motions of humanoid robots. The double spherical joint is a six DOF joint that consists of six single DOF mechanical pairs in series...

Spectroscopy of superconducting charge qubits coupled by a Josephson inductance (2008)

Yamamoto, T., Watanabe, M., You, J. Q., Pashkin, Yu. A., Astafiev, O., Nakamura, Y., ...

We have designed and experimentally implemented a circuit of inductively-coupled superconducting charge qubits, where a Josephson junction is used as an inductance, and the coupling between the...

Condition for emergence of complex eigenvalues in the Bogoliubov-de Gennes equations (2008)

Nakamura, Y., Mine, M., Okumura, M., Yamanaka, Y.

The condition for the appearance of dynamical instability of the Bose-condensed system, characterized by the emergence of complex eigenvalues in the Bogoliubov-de Gennes equations, is studied...

Interqubit coupling mediated by a high-excitation-energy quantum object (2008)

Ashhab, S., Niskanen, Antti, Harrabi, K., Nakamura, Y., Picot, T., De Groot, P. C., ...

Physical Review B - Condensed Matter and Materials Physics Vol. 77 Nr.1, Art. No. 014510

Probing the chiral limit with clover fermions II: The baryon sector (2007)

Göckeler, M., Hägler, Philipp, Horsley, R., Nakamura, Y., Ohtani, M., Pleiter, D., ...

Algorithmic progress in recent years made it possible to simulate QCD with Nf=2 flavours of O(a)-improved Wilson fermions at very light quark masses. We present the current results for baryon...

Fop (frequency of optimal codon usage): WWW service with its distribution analysis (2007)

Y. Nakamura, T. Ikemura

We have been constructing a WWW server which shows: 1) Fop value for all of the full--length ORFs of E. coli and S. cerevisiae in GenBank DNA sequence database and 2) distribution of Fop value along...

Distribution Amplitudes of Vector Mesons (2007)

Braun, V. M., Brömmel, D., Göckeler, M., Horsley, R., Nakamura, Y., Perlt, H., ...

Results are presented for the lowest moment of the distribution amplitude for the K-star vector meson. Both longitudinal and transverse moments are investigated. We use two flavours of O(a) improved...

Finite temperature Lattice QCD with two flavors of improved Wilson fermions (2007)

Bornyakov, V. G., Morozov, S. M., Nakamura, Y., Polikarpov, M. I., Schierholz, G., Suzuki, T.

We present results of finite temperature QCD from N_f=2 flavors of non-perturbatively improved Wilson fermions on lattices with N_t=8, 10 and 12. The transition temperature T_c is determined for the...

Decoherence in a superconducting flux qubit with a pi-junction (2007)

Kato, T., Golubov, Dr. A., Nakamura, Y.

We consider the use of a pi junction for flux qubits to realize degenerate quantum levels without external magnetic field. On the basis of the Caldeira-Leggett model, we derive an effective...

The chiral transition on a 24^3x10 lattice with N_f=2 clover sea quarks studied by overlap valence quarks (2007)

Weinberg, V., Koller, K., Koma, Y., Nakamura, Y., Schierholz, G., ...

Overlap fermions are particularly well suited to study the finite temperature dynamics of the chiral symmetry restoration transition of QCD, which might be just an analytic crossover. Using gauge...

Moments of nucleon distribution amplitudes from irreducible three-quark operators (2007)

Göckeler, M., Horsley, R., Kaltenbrunner, T., Nakamura, Y., Pleiter, D., Rakow, P. E. L., ...

Semi-exclusive and exclusive processes are becoming more and more important in high energy physics since they are excellently suited to study the internal hadronic structure. To analyze such...

Kaon semileptonic decay form factors from N_f = 2 non-perturbatively O(a)-improved Wilson fermions (2007)

Brommel, QCDSF Collaboration: D., Horsley, R., Morozov, S. M., Nakamura, Y., Pleiter, D., Schierholz, G., ...

We present first results from the QCDSF collaboration for the kaon semileptonic decay form factors at zero momentum transfer, using two flavours of non-perturbatively O(a)-improved Wilson quarks. A...

Nucleon electromagnetic form factors with Wilson fermions (2007)

Gockeler, M., Hagler, Ph., Horsley, R., Nakamura, Y., Ohtani, M., Pleiter, D., ...

The nucleon electromagnetic form factors continue to be of major interest for experimentalists and phenomenologists alike. They provide important insights into the structure of nuclear matter. For a...

Moments of generalized parton distributions and quark angular momentum of the nucleon (2007)

Ohtani, QCDSF/UKQCD Collaboration: M., Brommel, D., Gockeler, M., Hagler, Ph., Horsley, R., Nakamura, Y., ...

The internal structure of hadrons is important for a variety of topics, including the hadron form factors, proton spin and spin asymmetry in polarized proton scattering. For a systematic study...

Oceanic crust and Moho of the Pacific Plate in the eastern Ogasawara Plateau region (2007)

Tsuji, T., Nakamura, Y., Tokuyama, H., Coffin, M.F., Koda, K.

To show the structure of oceanic crust and Moho around the eastern Ogasawara Plateau, we have analyzed industry-standard two-dimensional multichannel seismic reflection data. To obtain improved...

Decoherence in a superconducting flux qubit with a pi-junction (2007)

Kato, T., Golubov, A. A., Nakamura, Y.

We consider the use of a pi-junction for flux qubits to realize degenerate quantum levels without external magnetic field. On the basis of the Caldeira-Leggett model, we derive an effective...

The spin structure of the pion (2007)

Brömmel, D., Diehl, M., Göckeler, M., Hägler, Ph., Horsley, R., Nakamura, Y., ...

We present the first calculation of the transverse spin structure of the pion in lattice QCD. We find a characteristic asymmetry in the spatial distribution of transversely polarized quarks. This...

Is relaxation correlated in superconducting qubits? (2007)

Ojanen, T., Niskanen, A. O., Nakamura, Y., Abdumalikov Jr, A. A.

We consider coupled quantum two-state systems (qubits) exposed to a global relaxation process. The global relaxation refers to the assumption that qubits are coupled to the same quantum bath with...

Decoherence in a superconducting flux qubit with a pi-junction (2007)

Kato, T., Golubov, A.A., Nakamura, Y.

We consider the use of a pi junction for flux qubits to realize degenerate quantum levels without external magnetic field. On the basis of the Caldeira-Leggett model, we derive an effective...

Chapter 3: MHD stability, operational limits and disruptions (2007)

Hender, T. C., Wesley, J. C., Bialek, J., Bondeson, A., Boozer, A. H., Buttery, R. J., ...

Progress in the area of MHD stability and disruptions, since the publication of the 1999 ITER Physics Basis document (1999 Nucl. Fusion 39 2137-2664), is reviewed. Recent theoretical and experimental...

Transverse spin structure of the nucleon from lattice QCD simulations (2006)

Göckeler, M., Hägler, Ph., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., ...

We present the first calculation in lattice QCD of the lowest two moments of transverse spin densities of quarks in the nucleon. They encode correlations between quark spin and orbital angular...

Nucleon Form Factors: Probing the Chiral Limit (2006)

Gockeler, M., Hageler, Ph., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., ...

The electromagnetic form factors provide important hints for the internal structure of the nucleon and continue to be of major interest for experimentalists. For an intermediate range of momentum...

Simulating at Realistic Quark Masses: Light quark masses (2006)

Göckeler, M., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., Schierholz, G., ...

We present new results for light quark masses. The calculations are performed using two flavours of $O(a)$ improved Wilson fermions. We have reached lattice spacings as small as $a \sim 0.07$fm and...

Simulating at Realistic Quark Masses: Pseudoscalar Decay Constants and Chiral Logarithms (2006)

Göckeler, M., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., Schierholz, G., ...

Due to improvements in computer performance and algorithms, the rapidly increasing cost for unquenched Wilson-type fermions with lighter quarks has been ameliorated and new simulations are now...

Spectroscopy of three strongly coupled flux qubits (2006)

Niskanen, A. O., Harrabi, K., Yoshihara, F., Nakamura, Y., Tsai, J. S.

We have carried out spectroscopic measurements of a system of three strongly coupled four-junction flux qubits. The samples studied cover a wide range of parameters with the coupling energy between...

Probing Nucleon Structure on the Lattice (2006)

Göckeler, M., Hägler, Ph., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., ...

The QCDSF/UKQCD collaboration has an ongoing program to calculate nucleon matrix elements with two flavours of dynamical O(a) improved Wilson fermions. Here we present recent results on the...

The pion form factor from lattice QCD with two dynamical flavours (2006)

Brömmel, D., Diehl, M., Göckeler, M., Hägler, Ph., Horsley, R., Nakamura, Y., ...

We compute the electromagnetic form factor of the pion using non-perturbatively O(a) improved Wilson fermions. The calculations are done for a wide range of pion masses and lattice spacings. We check...

Decoherence of flux qubits due to 1/f flux noise (2006)

Yoshihara, F., Harrabi, K., Niskanen, A. O., Nakamura, Y., Tsai, J. S.

We have investigated decoherence in Josephson-junction flux qubits. Based on the measurements of decoherence at various bias conditions, we discriminate contributions of different noise sources. In...

Parity effect in superconducting aluminum single electron transistors with spatial gap profile controlled by film thickness (2006)

Yamamoto, T., Nakamura, Y., Pashkin, Yu. A., Astafiev, O., Tsai, J. S.

We propose a novel method for suppression of quasiparticle poisoning in Al Coulomb blockade devices. The method is based on creation of a proper energy gap profile along the device. In contrast to...

Compression of CT images - Applying the Hybrid Coding (2005)

Yamamoto, K., Nagao, J., Truong, T.D., Nakamura, Y., Terai, H., Nishihori, K., ...

Third Symposium on "Intelligent Media Integration for Social Information Infrastructure" December 6, 2005, p.108

Extracting ROI by using Eye Movement Analysis (2005)

Yamamoto, K., Nagao, J., Truong, T.D., Nakamura, Y., Terai, H., Nishihori, K., ...

Third Symposium on "Intelligent Media Integration for Social Information Infrastructure" December 6, 2005, p.108

The sulfate transporter SST1 is crucial for symbiotic nitrogen fixation in Lotus japonicus root nodules (2005)

Krusell, L., Krause, K., Ott, T., Desbrosses, G., Kramer, U., Sato, S., ...

Symbiotic nitrogen fixation (SNF) by intracellular rhizobia within legume root nodules requires the exchange of nutrients between host plant cells and their resident bacteria. Little is known at the...

Lunar subsurface investigated from correlation of seismic noise. (2005)

Larose, Eric, Campillo, Michel, Khan, A., Nakamura, Y.

By correlating seismic noise recorded by four sensors placed on the Moon during the Apollo 17 mission, we have retrieved a well-defined dispersed Rayleigh wave pulse. Inversion of its group velocity...

Lunar subsurface investigated from correlation of seismic noise. (2005)

Larose, Eric, Campillo, Michel, Khan, A., Nakamura, Y.

By correlating seismic noise recorded by four sensors placed on the Moon during the Apollo 17 mission, we have retrieved a well-defined dispersed Rayleigh wave pulse. Inversion of its group velocity...

TRISPEC: A Simultaneous Optical and Near-Infrared Imager, Spectrograph, and Polarimeter. (2005)

Watanabe, M., Nakaya, H., Yamamuro, T., Zenno, T., Ishii, M., Okada, M., ...

Original article can be found at : http://www.journals.uchicago.edu/ Copyright The Astronomical Society of the Pacific

Quantum noise in the Josephson charge qubit (2004)

Astafiev, O., Pashkin, Yu. A., Nakamura, Y., Yamamoto, T., Tsai, J. S.

We study decoherence of the Josephson charge qubit by measuring energy relaxation and dephasing with help of the single-shot readout. We found that the dominant energy relaxation process is a...

Immunohistochemical Characterization of Rapid Dentin Formation Induced by Enamel Matrix Derivative (2004)

Nakamura, Y., Ritchie, H. H., Matsumoto, K., Lyngstadaas, S. P., Slaby, I.

The purpose of this study was to examine the pulpal expression of dentin-related proteins during enamel matrix derivative (EMD)–induced reparative dentin formation in a pulpotomy model in pig...

Coherent dynamics of a flux qubit coupled to a harmonic oscillator (2004)

Chiorescu, I., Bertet, P., Semba, K., Nakamura, Y., Mooij, J. E.

In the emerging field of quantum computation and quantum information, superconducting devices are promising candidates for the implementation of solid-state quantum bits or qubits. Single-qubit...

A “rootless” serpentinite seamount on the southern Izu-Bonin forearc: implications for basal erosion at convergent plate margins (2004)

Miura, R., Nakamura, Y., Koda, K., Tokuyama, H., Coffin, M.F.

We use multichannel seismic reflection (MCS) and gravity data from the southern Izu-Bonin convergent plate margin to test for tectonic erosion. The Hahajima Seamount is a serpentinite seamount on the...

Single-shot measurement of the Josephson charge qubit (2004)

Astafiev, O., Pashkin, Yu. A., Yamamoto, T., Nakamura, Y., Tsai, J. S.

We demonstrate single-shot readout of quantum states of the Josephson charge qubit. The quantum bits are transformed into and stored as classical bits (charge quanta) in a dynamic memory cell - a...

Sensors for the CDF Run2b silicon detector (2004)

Akimoto, T., Aoki, M., Azzi, P., Bacchetta, N., Behari, S., Benjamin, D., ...

We describe the characteristics of silicon microstrip sensors fabricated by Hamamatsu Photonics; for the CDF Run 2b silicon detector. A total of 953 sensors, including 117 prototype sensors, have...

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Inagaki, S., Yokoyama, M., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Idei, H., Inagaki, S., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Idei, H., Inagaki, S., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Extension and its characteristics of ECRH plasma in the LHD (2004)

Kubo, Shin, Shimozuma, T., Yoshimura, Y., Notake, T., Inagaki, S., Yokoyama, M., ...

One of the main objectives of the LHD is to extend the plasma confinement database for helical systems and to demonstrate such extended plasma confinement properties to be sustained in steady state....

Confinement characteristics of the quasi-axisymmetric stellarator CHS-qa (2004)

Okamura, S., Matsuoka, K., Nishimura, S., Isobe, M., Suzuki, C., Shimuzu, A., ...

A low aspect ratio stellarator CHS-qa with a quasi-axisymmetric configuration has been designed at NIFS, whose main objective is the experimental study of confinement improvement. The high beta...

Review on the progress of the LHD experiment (2004)

Motojima, O., Yamada, H., Komori, A., Watanabe, K. Y., Mutoh, T., Takeiri, Y., ...

Recent progress in the Large Helical Device (LHD) experiment during the last 2 yr is reviewed. The LHD has been extending its operational regime toward fusion-relevant conditions while taking...

Automated Camerawork For Capturing Desktop Presentations – Camerawork Design And Evaluation (2004)

M. Ozeki, Y. Nakamura, Y. Ohta

This paper introduces a novel automated camera control method for capturing desktop presentations. For this purpose, we first discuss typical features of shots and their cameraworks that frequently...

Demonstration of conditional gate operation using superconducting charge qubits (2003)

Yamamoto, T., Pashkin, Yu. A., Astafiev, O., Nakamura, Y., Tsai, J. S.

Since the first demonstration of coherent control of a quantum state of a superconducting charge qubit a variety of Josephson-junction-based qubits have been implemented with remarkable progress in...

Dynamics of Monopoles and Flux Tubes in Two-Flavor Dynamical QCD (2003)

Bornyakov, V. G., Ichie, H., Koma, Y., Mori, Y., Nakamura, Y., Pleiter, D., ...

We investigate the confining properties of the QCD vacuum with $N_f=2$ flavors of dynamical quarks, and compare the results with the properties of the quenched theory. We use non-perturbatively...

Fast two-bit operations in inductively coupled flux qubits (2003)

You, J. Q., Nakamura, Y., Nori, Franco

A central problem for implementing efficient quantum computing is how to realize fast operations (both one- and two-bit ones). However, this is difficult to achieve for a collection of qubits,...

Coherent Quantum Dynamics of a Superconducting Flux Qubit (2003)

Chiorescu, I., Nakamura, Y., Mooij, J. E.

We have observed coherent time evolution between two quantum states of a superconducting flux qubit comprising three Josephson junctions in a loop. The superposition of the two states carrying...

PA26 is a candidate gene for heterotaxia in humans: identification of a novel PA26-related gene family in human and mouse (2003)

Bairoch, A, Huysmans, C, Parthoens, E, ...

Heterotaxia is an aetiologically heterogeneous condition caused by an abnormal left-right axis formation, resulting in reversed left-right polarity of one or more organ systems. In a patient with...

A demonstration of magnetic field optimization in LHD (2003)

Murakami, S., Yamada, H., Wakasa, A., Sasao, M., Isobe, M., Ozaki, T., ...

The behaviors of trapped particles in helical ripples are complicated and would enhance the radial transport of energetic particles and thermal plasma (neoclassical transport) in heliotrons. Thus the...

MHD instabilities and their effects on plasma confinement in the large helical device plasmas (2003)

Toi, K., Ohdachi, S., Yamamoto, S., Nakajima, N., Sakakibara, S., Watanabe, K. Y., ...

MHD stability of NBI heated plasmas and impacts of MHD modes on plasma confinement are intensively studied in the Large Helical Device (LHD). Three characteristic MHD instabilities were observed,...

Characterization of axisymmetric disruption dynamics toward VDE avoidance in Tokamaks (2003)

Nakamura, Y., Yoshino, R., Granetz, R. S., Pautasso, G., Gruber, O., Jardin, S. C.

Experiments and axisymmetric MHD simulations on tokamak disruptions have explicated the underlying mechanisms of Vertical Displacement Events (VDEs) and a diversity of disruption dynamics. First, the...

Disruption studies in ASDEX Upgrade (2003)

Pautasso, G., Egorov, S., Finken, K. H., Gruber, O., Herrmann, A., Fuchs, C. J., ...

Disruption generate large thermal and mechanical stresses on the tokamak components. For a future reactor disruptions have a significant impact on the design since all loading conditions must be...

Adenosine triphosphate inhibits cytokine release from lipopolysaccharide-activated microglia via P(2)y receptors (2003)

Ogata, T., Chuai, M., Morino, T., Yamamoto, H., Nakamura, Y., Schubert, P.

Microglial proliferation. and activation have been reported to occur after several central nervous system injuries. In this study, we tested the effects of adenosine triphosphate (ATP) on cultured...

Adenosine triphosphate inhibits cytokine release from lipopolysaccharide-activated microglia via P(2)y receptors (2003)

Ogata, T., Chuai, M., Morino, T., Yamamoto, H., Nakamura, Y., Schubert, P.

Microglial proliferation. and activation have been reported to occur after several central nervous system injuries. In this study, we tested the effects of adenosine triphosphate (ATP) on cultured...

Impact of heat deposition profile on global confinement of NBI heated plasmas in the LHD (2003)

Yamada, H., Murakami, S., Yamazaki, K., Kaneko, O., Miyazawa, J., Sakamoto, R., ...

Energy confinement and heat transport of net-current-free NBI heated plasmas in the large helical device (LHD) are discussed with emphasis on density and power deposition profile dependences....

Recent advances in the LHD experiment (2003)

Motojima, O., Ohyabu, N., Komori, A., Kaneko, O., Yamada, H., Kawahata, K., ...

In the first four years of the LHD experiment, several encouraging results have emerged, the most significant of which is that MHD stability and good transport are compatible in the inward shifted...

Quantum oscillations in two coupled charge qubits (2002)

Pashkin, Yu. A., Yamamoto, T., Astafiev, O., Nakamura, Y., Averin, D. V., Tsai, J. S.

Despite an apparent progress in implementing individual solid-state qubits, there have been no experimental reports so far on multi-bit gates required for building a real quantum computer. Here we...

Self-assembled nanoholes, lateral quantum-dot molecules, and rolled-up nanotubes (2002)

Schmidt, O. G., Deneke, Ch., Kiravittaya, S., Songmuang, R., Heidemeyer, H., Nakamura, Y., ...

We present a detailed, investigation of novel strain-driven semiconductor nanostructures. Our examinations include self- assembled nanoholes, lateral quantum-dot (QD) molecules, and rolled-up...

Photoluminescence linewidth narrowing of InAs/GaAs self-assembled quantum dots (2002)

Kiravittaya, S., Nakamura, Y., Schmidt, O. G.

The effects of desorption and diffusion of indium adatoms on the photoluminescence (PL) front InAs self-assembled quantum dots (QDs) are investigated by introducing growth interruptions after QD...

Self-assembled semiconductor nanostructures: climbing up the ladder of order (2002)

Schmidt, O. G., Kiravittaya, S., Nakamura, Y., Heidemeyer, H., Songmuang, R., Müller, C., ...

Different growth techniques and growth strategies are presented to climb up the hierarchy of order in the field of self- assembled semiconductor nanostructures. In a first step we report a...

Vertical alignment of laterally ordered InAs and InGaAs quantum dot arrays on patterned (001) GaAs substrates (2002)

Nakamura, Y., Schmidt, O. G., Jin-Phillipp, N. Y., Kiravittaya, S., Müller, C., Eberl, K., ...

We demonstrate vertical alignment of laterally ordered self- assembled quantum dot (QD) arrays stacked on artificially pre- patterned substrates with two-dimensional hole arrays. The initial InGaAs...

Axisymmetric disruption dynamics including current profile changes in the ASDEX-Upgrade tokamak (2002)

Nakamura, Y., Pautasso, G., Gruber, O., Jardin, S. C.

Axisymmetric MHD simulations have revealed a new driving mechanism that governs the vertical displacement event (VDE) dynamics in tokamak disruptions. A rapid flattening of the plasma current profile...

Plasma equilibrium response modelling and validation on JT-60U (2002)

Lister, J. B., Sharma, A., Limebeer, D. J. N., Nakamura, Y., Wainwright, J. P., Yoshino, R.

A systematic procedure to identify the plasma equilibrium response to the poloidal field coil voltages has been applied to the JT-60U tokamak. The required response was predicted with a high accuracy...

Coherent Quantum Dynamics of (2002)

E. Bertschinger, D. Finkelstein, R. Hermann, P. Kumar, G. J. Sussman, ...

then � would be the co-latitude of the struts and the longitudinal angle between the struts would be 120°. 16. The presence of the factor of c 2 confirms that this is a relativistic effect. There...

Charge echo in a Cooper-pair box (2001)

Nakamura, Y., Pashkin, Yu. A., Yamamoto, T., Tsai, J. S.

A spin-echo-type technique is applied to an artificial two-level system that utilizes charge degree of freedom in a small superconducting electrode. Gate-voltage pulses are used to produce the...

Alcohol and the pancreas (2001)

Haber, P, Nakamura, M, Tsuchimoto, K, Ishii, H, Keogh, GW, Apte, MV, ...

This article represents the proceedings of a workshop at the 2000 ISBRA Meeting in Yokohama, Japan. The presentations were (1) Phenotypic alteration of myofibroblast during ethanol-induced pancreatic...

Configuration flexibility and extended regimes in Large Helical Device (2001)

Yamada, H., Komori, A., Ohyabu, N., Kaneko, O., Kawahata, K., Watanabe, K. Y., ...

Recent experimental results in the Large Helical Device have indicated that a large pressure gradient can be formed beyond the stability criterion for the Mercier (high-n) mode. While the stability...

MHD characteristics in the high beta regime of the Large Helical Device (2001)

Sakakibara, S., Yamada, H., Watanabe, K., Narushima, Y., Toi, K., Ohdachi, S., ...

The highest volume averaged beta values beta (t) of 2.2% at B-t = 0.75 T (gas puff) and 2.4% at D-t = 1.3 T (pellet) in helical devices have been achieved in LHD. The beta (t) dependence of MHD...

Linear and non-linear plasma equilibrium responses on the JT-60U and TCV tokamaks (2001)

Lister, J. B., Khayrutdinov, R., Limebeer, D. J. N., Lukash, V., Nakamura, Y., Sharma, A., ...

Although linear response models are useful for feedback controller design, their linear time-invariant properties cannot simulate the evolution of a full plasma discharge. A suitable code for this...

Alcohol and the pancreas (2001)

Haber, Paul, Nakamura, Masahiko, Tsuchimoto, Kanji, Ishii, Hiromasa, Keogh, Gregory W., Apte, Minoti V., ...

This article represents the proceedings of a workshop at the 2000 ISBRA Meeting in Yokohama, Japan. The presentations were (1) Phenotypic alteration of myofibroblast during ethanol-induced pancreatic...

Mother's Working Status and Nutritional Status of Children Under the Age of 5 in Urban Low-income Community, Surabaya, Indonesia (2001)

Toyama, N., Wakai, S., Nakamura, Y., Arifin, Andryansyah

A cross‐sectional anthropometrics survey was carried out in a low‐income community of Surabaya, Indonesia, to examine the association between mother's employment and the child's...

Sequence and analysis of chromosome 5 of the plant Arabidopsis thaliana (2000)

Kaneko, T, Nakamura, Y, Kotani, H, Kato, T, Asamizu, E, ...

The genome of the model plant Arabidopsis thaliana has been sequenced by an international collaboration, The Arabidopsis Genome Initiative. Here we report the complete sequence of chromosome 5. This...

A possible nature of breathing plasmas (2000)

Tokar, M. Z., Peterson, B. J., Nakamura, Y., Takeiri, Y., Noda, N.

This version is available at the following Publisher URL: http://pop.aip.org

Coherent control of macroscopic quantum states in a single-Cooper-pair box (1999)

Nakamura, Y., Pashkin, Yu. A., Tsai, J. S.

A small superconducting electrode (a single-Cooper-pair box) connected to a reservoir via a Josephson junction constitutes an artificial two-level system, in which two charge states that differ by 2e...

Thermal fluctuation of magnetization in nanocrystalline FePt thin films with high coercivity (1999)

Shimatsu, T., Lodder, J.C., Sugita, Y., Nakamura, Y.

The effect of thermal fluctuations of magnetization on static and dynamic properties is discussed for nanocrystalline FePt films. The large magnetocrystalline anisotropy K/sub u/ of L1/sub 0/ type...

The Effect of Tone Pulses with Fluctuating Inter-Stimulus Intervals on Auditory Evoked Mismatch Field (MMF) (1998)

N. Harada, T. Masuda, Y. Nakamura, H. Endo, T. Takeda

Introduction We are interested in the capability of human extracting regularity from environmental stimuli, and are looking for the functional basis of this capacity and its location in the human...

Nonlinear Behavior and Control of A Nonholonomic Free-Joint Manipulator (1997)

Y. Nakamura, T. Suzuki, M. Koinuma

The nonlinear motion of underactuated mechanisms has drawn recent interests of researchers. Underactuated mechanical systems are often subject to so-called nonholonomic constraints which are related...

Nonlinear Behavior and Control of A Nonholonomic Free-Joint Manipulator (1997)

Y. Nakamura, T. Suzuki, M. Koinuma

The nonlinear motion of underactuated mechanisms has drawn recent interests of researchers. The nonlinearity is often referred to as nonholonomy and related to many both theoretical and practical...

Comparison of the calculations of the stability properties of a specific stellarator equilibrium with different MHD stability codes (1996)

Nakamura, Y., Matsumoto, T., Wakatani, M., Galkin, S. A., Drozdov, V. V., Martynov, A. A., ...

A particular configuration of the LHD stellarator with an unusually flat pressure profile has been chosen to be a test case for comparison of the MHD stability property predictions of different...

Evaluation of high-level carbapenem resistance in atypical Serratia marcescens by a comparison with its revertants (1996)

Marumo, K., Nagaki, T., Nakamura, Y.

A clinical isolate of Serratia marcescens (FHSM4055) was highly resistant to carbapenem (MIC of imipenem, 100 mg/L) and was atypical in that it was negative in the aesculin-hydrolysis test. This...

Changes in activity of superoxide dismutase in the human endometrium throughout the menstrual cycle and in early pregnancy (1996)

Sugino, N., Shimamura, K., Takiguchi, S., Tamura, H., Ono, M., Nakata, M., ...

To investigate the possible role of the superoxide radical and its scavenging system in the human endometrium, the immunohistochemical distribution of superoxide dismutase (SOD), activities of SOD...

Ovary and ovulation: Nitric oxide concentrations in the follicular fluid and apoptosis of granulosa cells in human follicles (1996)

Sugino, N., Takiguchi, S., Ono, M., Tamura, H., Shimamura, K., Nakamura, Y., ...

To study the relationship between follicular atresia, apoptosis, and nitric oxide (NO) generation in follicular development, steroidogenesis, NO levels in follicular fluid and apoptosis were analysed...

Rapid confirmation of single copy lambda prophage integration by PCR (1995)

Powell, B. S., Rivas, M. P., Court, D. L., Nakamura, Y., Turnbough, C. L.

The publishers apologise for the incorporation of three errors, introduced during revisal of galley proofs for the above paper. The concentration of PCR primers used per reaction should read 500 nM...

Sequential changes in sympatho-neuronal regulation and contractile function following aortic regurgitation in rabbit heart (1993)

YOSHIKAWA, T., HANDA, T., YAMADA, T., WAINAI, Y., SUZUKI, M., NAGAMI, K., ...

This study was designed to determine the sequential changes in sympatho-neuronal regulation and contractile function of hearts exposed to volume overloading. Aortic regurgitation was produced by...

Genetic linkage between Von Hippel--Lindau disease and three microsatellite polymorphisms refines the localisation of the VHL locus (1993)

Crossey, P.A., Maher, E.R., Jones, M.H., Richards, F.M., Latif, F., Phipps, M.E., ...

Von Hippel—Lindau (VHL) disease is a dominantly inherited familial cancer syndrome characterised by the development of retinal and central nervous system haemangioblastomas, renal cell carcinoma...

Uniaxial pressure dependence of T§c in the system La§2§-§xSr§xCuO§4. (1993)

Gugenberger, F., Meingast, C., Roth, G., Wuehl, H., Uchida, S., Nakamura, Y.

13th General Conf.of the Condensed Matter Division of the European Physical Society in Conjunction with Arbeitskreis Festkoerperphysik Deutsche Physikalische Gesellschaft, Regensburg, March 29 -...

PHYSICAL PROPERTIES OF ALKALI METAL-AMMONIA (AMINE) SOLUTIONS STUDIED BY MAGNETIC RESONANCE METHODS (1991)

Nakamura, Y.

Characteristic features of the physical properties of metal-ammonia(amine) solutions are reviewed. The concentration fluctuations and the pairing of the excess electrons are considerable in the...

PHYSICAL PROPERTIES OF ALKALI METAL-AMMONIA (AMINE) SOLUTIONS STUDIED BY MAGNETIC RESONANCE METHODS (1991)

Nakamura, Y.

Characteristic features of the physical properties of metal-ammonia(amine) solutions are reviewed. The concentration fluctuations and the pairing of the excess electrons are considerable in the...

An MspI RFLP at the D17S258 locus (1991)

Franco, B., Rincon-Limas, D., Nakamura, Y., Patel, P.I., Lupski, J.R.

This paper was inadvertantly published with an unrevised title. The correct title is given above.

An Mspl RFLP at the D17S258 locus (1991)

Franco, B., Rincon-Limas, D., Nakamura, Y., Patel, P. I., Lupski, J. R.

The publisher wishes to apologize for the incorrect title which appeared with this article, wrongly indicating that two RFLPs were reported. The article reports a single Mspl polymorphism and the...

Twenty-five loci from a continuous linkage map of markers for human chromosome 7 (1989)

Lathrop, GM, O'Connell, P, Leppert, M, Nakamura, Y, Farrall, M, Tsui, L-C, ...

We have constructed a primary genetic linkage map from DNA markers that define 25 loci on chromosome 7. The markers form a continuous linkage group of 141 cM in males and 340 cM in females; female...

Linear temperature term of heat capacity in insulating and superconducting La-Ba-Cu-O systems (1988)

Kumagai, K., Nakamichi, Y., Watanabe, I., Nakamura, Y., Nakajima, H., Wada, N., ...

The heat capacity of La2-xBaxCuO4 was investigated between 0.8 and 10 K. The linear temperature term γT of the heat capacity is absent in the antiferromagnetic-ordered region of x≤0.02. γ...

AN INELASTIC POLARISED NEUTRON SCATTERING INVESTIGATION OF THE DYNAMIC FORM FACTOR IN THE INVAR ALLOY Fe65Ni35 (1988)

Brown, P., Jassim, I., Mankikar, R., Nakamura, Y., Ziebeck, K.

Polarisation dependence of one phonon cross sections has been investigated in the Invar alloy Fe65Ni35. The variation of the polarisation ratios suggests that the magneto vibrational scattering is...

EFFECT OF STRUCTURE DISORDER ON MAGNETISM OF ZrZn2 AND Ni3Al ALLOYS (1988)

Sumiyama, K., Yasuda, H., Hirose, Y., Nakamura, Y.

In sputter-deposited Zr-Zn and Ni-Al alloys, an amorphous Zr-Zn phase appears for 30-80 at % Zn, while a disordered fcc Ni-Al phase appears for 0-30 at % Al and an amorphous Ni-Al phase for 65-80 at...

EFFECTS OF OXYGEN AND MAGNETIC IMPURITIES ON NUCLEAR RELAXATION ANOMALIES IN La-M-Cu-O (M = Ba, Sr) SYSTEMS (1988)

Kumagai, K., Watanabe, I., Nakamura, Y., Nakajima, H.

Nuclear quadrupole resonance (NQR) of 139La in La2-xMxCuO4 (M = Ba, Sr) have revealed unexpected enhancement of nuclear relaxation rate, 1 / T1 at T*c 10 K, suggesting the occurrence of magnetic...

GIANT SPIN FLUCTUATIONS IN YMn2 AND RELATED COMPOUNDS (1988)

Shiga, M., Wada, H., Nakamura, Y., Deportes, J., Ziebeck, K.

Analyses of thermal expansion curves and paramagnetic neutron scattering measurements of Y (Mn1-xAlx)2 and Y1-xScxMn2 systems have revealed that (1) the Mn moment in the itinerant electron...

LOW TEMPERATURE ANOMALY OF ELASTIC CONSTANTS IN Fe-Ni AND Fe65 (Ni1-xMnx)35 INVAR ALLOYS (1988)

Shiga, M., Makita, K., Uematsu, K., Nakamura, Y.

The temperature and frequency dependence of elastic constants, CL, C44 and C' of Fe-Ni and Fe65 (Ni1-xMnx)35 Invar alloys have been measured by means of an ultra-sonic pulse echo technique. It has...

MAGNETIC PROPERTIES OF AMORPHOUS Fe-Ti ALLOYS PRODUCED BY FACING TARGET TYPE SPUTTERING (1988)

Sumiyama, K., Yasuda, H., Nakamura, Y.

In bulk Fe-Ti alloys prepared by facing target type sputtering, an amorphous phase was obtained between 25 and 75 at% Ti. These alloys are weak itinerant electron ferromagnets and the Curie...

NUCLEAR MAGNETIC RELAXATION OF Y1-xScxMn2 (1988)

Nakamura, H., Kitaoka, Y., Yoshimura, K., Kohori, Y., Asayama, K., Shiga, M., ...

45Sc NMR and 55Mn NQR have been measured in Y1-xScxMn2 down to 0.3 K. The temperature dependence of the nuclear spin-lattice relaxation rates, 1 / T1, for 45Sc is well interpreted within the scheme...

TEMPERATURE-LINEAR TERM OF HEAT CAPACITY OF La-Ba-Cu-O AND La-Sr-Cu-O SYSTEMS (1988)

Kumagai, K., Nakamura, Y., Watanabe, I., Nakamichi, Y., Nakajima, H.

Heat capacity of La2-xMxCuO4 (M = Ba, Sr) has been investigated between 1.5 and 10 K. The temperature e-linear term, γT, of heat capacity is absent in the antiferromagnetic ordered region of x <...

WEAK FERROMAGNETISM OF Ta1-xTixFe2 (1988)

Wada, H., Shiga, M., Nakamura, Y.

Magnetic properties of Ta1-xTixFe2 have been studied. It is shown that the compounds with 0.1 ≤ x ≤ 0.4 show weak ferromagnetism with the magnetic moment of 0.1 µB/Fe atom and those with...

AN INELASTIC POLARISED NEUTRON SCATTERING INVESTIGATION OF THE DYNAMIC FORM FACTOR IN THE INVAR ALLOY Fe65Ni35 (1988)

Brown, P., Jassim, I., Mankikar, R., Nakamura, Y., Ziebeck, K.

Polarisation dependence of one phonon cross sections has been investigated in the Invar alloy Fe65Ni35. The variation of the polarisation ratios suggests that the magneto vibrational scattering is...

EFFECT OF STRUCTURE DISORDER ON MAGNETISM OF ZrZn2 AND Ni3Al ALLOYS (1988)

Sumiyama, K., Yasuda, H., Hirose, Y., Nakamura, Y.

In sputter-deposited Zr-Zn and Ni-Al alloys, an amorphous Zr-Zn phase appears for 30-80 at % Zn, while a disordered fcc Ni-Al phase appears for 0-30 at % Al and an amorphous Ni-Al phase for 65-80 at...

EFFECTS OF OXYGEN AND MAGNETIC IMPURITIES ON NUCLEAR RELAXATION ANOMALIES IN La-M-Cu-O (M = Ba, Sr) SYSTEMS (1988)

Kumagai, K., Watanabe, I., Nakamura, Y., Nakajima, H.

Nuclear quadrupole resonance (NQR) of 139La in La2-xMxCuO4 (M = Ba, Sr) have revealed unexpected enhancement of nuclear relaxation rate, 1 / T1 at T*c 10 K, suggesting the occurrence of magnetic...

GIANT SPIN FLUCTUATIONS IN YMn2 AND RELATED COMPOUNDS (1988)

Shiga, M., Wada, H., Nakamura, Y., Deportes, J., Ziebeck, K.

Analyses of thermal expansion curves and paramagnetic neutron scattering measurements of Y (Mn1-xAlx)2 and Y1-xScxMn2 systems have revealed that (1) the Mn moment in the itinerant electron...

LOW TEMPERATURE ANOMALY OF ELASTIC CONSTANTS IN Fe-Ni AND Fe65 (Ni1-xMnx)35 INVAR ALLOYS (1988)

Shiga, M., Makita, K., Uematsu, K., Nakamura, Y.

The temperature and frequency dependence of elastic constants, CL, C44 and C' of Fe-Ni and Fe65 (Ni1-xMnx)35 Invar alloys have been measured by means of an ultra-sonic pulse echo technique. It has...

MAGNETIC PROPERTIES OF AMORPHOUS Fe-Ti ALLOYS PRODUCED BY FACING TARGET TYPE SPUTTERING (1988)

Sumiyama, K., Yasuda, H., Nakamura, Y.

In bulk Fe-Ti alloys prepared by facing target type sputtering, an amorphous phase was obtained between 25 and 75 at% Ti. These alloys are weak itinerant electron ferromagnets and the Curie...

NUCLEAR MAGNETIC RELAXATION OF Y1-xScxMn2 (1988)

Nakamura, H., Kitaoka, Y., Yoshimura, K., Kohori, Y., Asayama, K., Shiga, M., ...

45Sc NMR and 55Mn NQR have been measured in Y1-xScxMn2 down to 0.3 K. The temperature dependence of the nuclear spin-lattice relaxation rates, 1 / T1, for 45Sc is well interpreted within the scheme...

TEMPERATURE-LINEAR TERM OF HEAT CAPACITY OF La-Ba-Cu-O AND La-Sr-Cu-O SYSTEMS (1988)

Kumagai, K., Nakamura, Y., Watanabe, I., Nakamichi, Y., Nakajima, H.

Heat capacity of La2-xMxCuO4 (M = Ba, Sr) has been investigated between 1.5 and 10 K. The temperature e-linear term, γT, of heat capacity is absent in the antiferromagnetic ordered region of x <...

WEAK FERROMAGNETISM OF Ta1-xTixFe2 (1988)

Wada, H., Shiga, M., Nakamura, Y.

Magnetic properties of Ta1-xTixFe2 have been studied. It is shown that the compounds with 0.1 ≤ x ≤ 0.4 show weak ferromagnetism with the magnetic moment of 0.1 µB/Fe atom and those with...

Effect of NusA protein on expression of the nusA, infB operon in E.coli (1985)

Plumbridge, J.A., Dondon, J., Nakamura, Y., Grunberg-Manago, M.

Protein and operon fusions between lacZ and various genes of the nusA.infB operon have been constructed on λ bacteriophages and used to show that the operon is negatively regulated by the level of...

Thermally Stimulated Exoelectron Emission from the (100), (110) and (111) Surfaces in Single Crystals (1983)

Kubozoe, T., Watanabe, Y., Nakamura, Y., Koabe, S., Aoki, M.

TSEE from the (100), (110) and (111) surfaces in LiF was studied. Glow curves have been measured by the gas-flow counter after ? ray irradiation in air, and by the micro-channel plate after UV and X...

SHAPE MEMORY EFFECT IN Cu-Al-Be TERNARY ALLOYS (1982)

Higuchi, A., Suzuki, K., Matsumoto, Y., Sugimoto, K., Komatsu, S., Nakamura, Y.

Changes in electrical resistivity, internal friction and Young's modulus with temperature have been examined on a series of beta-phase specimens in the hypoeutectoid region of the Cu-Al-Be ternary...

SHAPE MEMORY EFFECT IN Cu-Al-Be TERNARY ALLOYS (1982)

Higuchi, A., Suzuki, K., Matsumoto, Y., Sugimoto, K., Komatsu, S., Nakamura, Y.

Changes in electrical resistivity, internal friction and Young's modulus with temperature have been examined on a series of beta-phase specimens in the hypoeutectoid region of the Cu-Al-Be ternary...

PSEUDOELASTIC BEHAVIOR OF COIL SPRING MADE OF A HIGH-DAMPING Cu-Zn-Al ALLOY (1981)

Sugimoto, K., Nakamura, Y., Delaey, L.

The static and dynamic mechanical behavior of coil spring made of a Cu-26wt%Zn-4wt%Al alloy which undergoes thermoelastic martensite transformation at 19°C have been studied by means of...

PSEUDOELASTIC BEHAVIOR OF COIL SPRING MADE OF A HIGH-DAMPING Cu-Zn-Al ALLOY (1981)

Sugimoto, K., Nakamura, Y., Delaey, L.

The static and dynamic mechanical behavior of coil spring made of a Cu-26wt%Zn-4wt%Al alloy which undergoes thermoelastic martensite transformation at 19°C have been studied by means of...

EASY DIRECTION OF MAGNETIZATION IN GdFe2 (1979)

Mizoguchi, T., Tanaka, Y., Tsuchida, T., Nakamura, Y.

The easy direction of magnetization in GdFe2 has been investigated by using the 57Fe Mössbauer effect. The anisotropy in GdFe2 is so weak that some of the rare-earth impurities involved in Gd metals...

EFFECT OF LOCAL ON FORMATION OF LOCAL MOMENTS IN BCC IRON ALLOYS (1979)

Shiga, M., Nakamura, Y.

By analyzing the Mössbauer spectra of some BCC Fe alloys at liquid Fe temperature, the effect of local environement on the formation of local moments has been investigated. In this report, the...

MICTOMAGNETISM IN Zr(Fe-Co)2 (1979)

Muraoka, Y., Shiga, M., Nakamura, Y.

Magnetic and Mössbauer measurements have been made for the pseudobinary Zr(Fe1-xCox)2 system. Both measurements clearly show that mictomagnetism appears for x = 0.5 ~ 0.7, as ferromagnetism vanishes.

TWO-PHASE SEPARATION IN ALNICO 5 ALLOY (1979)

Tahara, R., Nakamura, Y.

The process of phase separation in the Alnico 5 magnet alloy is investigated by using the Mössbauer effect of 57Fe. After being quenched from a one-phase region, the thin samples are aged for...

EASY DIRECTION OF MAGNETIZATION IN GdFe2 (1979)

Mizoguchi, T., Tanaka, Y., Tsuchida, T., Nakamura, Y.

The easy direction of magnetization in GdFe2 has been investigated by using the 57Fe Mössbauer effect. The anisotropy in GdFe2 is so weak that some of the rare-earth impurities involved in Gd metals...

EFFECT OF LOCAL ON FORMATION OF LOCAL MOMENTS IN BCC IRON ALLOYS (1979)

Shiga, M., Nakamura, Y.

By analyzing the Mössbauer spectra of some BCC Fe alloys at liquid Fe temperature, the effect of local environement on the formation of local moments has been investigated. In this report, the...

MICTOMAGNETISM IN Zr(Fe-Co)2 (1979)

Muraoka, Y., Shiga, M., Nakamura, Y.

Magnetic and Mössbauer measurements have been made for the pseudobinary Zr(Fe1-xCox)2 system. Both measurements clearly show that mictomagnetism appears for x = 0.5 ~ 0.7, as ferromagnetism vanishes.

TWO-PHASE SEPARATION IN ALNICO 5 ALLOY (1979)

Tahara, R., Nakamura, Y.

The process of phase separation in the Alnico 5 magnet alloy is investigated by using the Mössbauer effect of 57Fe. After being quenched from a one-phase region, the thin samples are aged for...

MAJOR AIRWAY OBSTRUCTION BY MEDIASTINAL TUMOUR (1973)

AMAHA, K., OKUTSU, Y., NAKAMURA, Y.

The case is presented of a 13-year-old boy in whom a large mediastinal tumour compressed the major airway over a wide area, including the bifurcation. Severe dyspnoea resulted. It was not thought...

INSPIRED OXYGEN CONCENTRATIONS USING A HUMIDIFIER/TRACHEOSTOMY T-PIECE SYSTEM (1972)

NAKAMURA, Y., JEBSON, P.

This study examines the inspired oxygen concentrations achieved using a humidifier driven by oxygen under pressure and a standard T-piece connection fitted to the tracheostomy tube. Since the...

Evaluation of molecular genetic diagnosis in the management of familial adenomatous polyposis coli: a population based study.

Maher, E R, Barton, D E, Slatter, R, Koch, D J, Jones, M H, Nagase, H, ...

A population based clinical and molecular genetic study of familial adenomatous polyposis coli (FAPC) was performed to investigate the value of molecular genetic analysis and ophthalmological...

Effect of the leukotriene receptor antagonist pranlukast on cellular infiltration in the bronchial mucosa of patients with asthma

Nakamura, Y., Hoshino, M., Sim, J. J., Ishii, K., Hosaka, K., Sakamoto, T.

BACKGROUND—It has been reported that pranlukast reduces the antigen induced immediate and late phase asthmatic responses, airway hyperreactivity to acetylcholine, and pulmonary eosinophil...

Cardiac sequelae of Kawasaki disease among recurrent cases

Nakamura, Y., Yanagawa, H., Ojima, T., Kawasaki, T., Kato, H.

OBJECTIVE—This study was undertaken to clarify whether cardiac sequelae due to Kawasaki disease are more frequent among recurrent cases than initial onset cases.
STUDY DESIGN—A cross sectional...

Relation between increased numbers of safe playing areas and decreased vehicle related child mortality rates in Japan from 1970 to 1985: a trend analysis

Nakahara, S., Nakamura, Y., Ichikawa, M., Wakai, S.

Objectives: To examine vehicle related mortality trends of children in Japan; and to investigate how environmental modifications such as the installation of public parks and pavements are associated...

Angiotensin converting enzyme inhibitor prevents left ventricular remodelling after myocardial infarction in angiotensin II type 1 receptor knockout mice

Yoshiyama, M, Nakamura, Y, Omura, T, Izumi, Y, Matsumoto, R, Oda, S, ...

Background: It is well known that angiotensin converting enzyme (ACE) inhibitors and angiotensin II type 1 (AT1) receptor blockers (ARBs) prevent left ventricular (LV) remodelling after myocardial...

A facet-based system for computer-assisted instruction in pain management for elderly patients.

Raffety, B., Allendoerfer, C., Minstrell, J., Chabal, C., Dunbar, P., Nakamura, Y.

DIANA2, a web-based interactive tutor for pain management (see www.talariainc.com), was more effective than conventional methods of learning (such as reading articles that contain the same type of...

Large-scale culture system of human CD4+ helper/killer T cells for the application to adoptive tumour immunotherapy.

Nakamura, Y., Tokuda, Y., Iwasawa, M., Tsukamoto, H., Kidokoro, M., Kobayashi, N., ...

A simple method for the rapid expansion of human CD4+ T cells with both helper and killer functions was established. CD4+ T cells separated from peripheral blood mononuclear cells using...

Evidence for the presence of two tumour-suppressor genes for hepatocellular carcinoma on chromosome 13q.

Kuroki, T., Fujiwara, Y., Nakamori, S., Imaoka, S., Kanematsu, T., Nakamura, Y.

The concept that genetic changes accumulate during development and progression of cancer is widely accepted. Frequent allelic losses at chromosome 13q have been found in hepatocellular carcinomas...

Localization of a breast cancer tumour-suppressor gene to a 3-cM interval within chromosomal region 16q22.

Iida, A., Isobe, R., Yoshimoto, M., Kasumi, F., Nakamura, Y., Emi, M.

Allelic losses on chromosome 16q in tumour cells are frequent in a variety of malignancies, suggesting the presence of one or more tumour-suppressor genes in the region. Among 210 sporadic breast...

Deletion mapping on chromosome 1p in well-differentiated gastric cancer.

Ezaki, T., Yanagisawa, A., Ohta, K., Aiso, S., Watanabe, M., Hibi, T., ...

To define the region on the short arm of chromosome 1 that is thought to include one or more tumour-suppressor genes for gastric cancers, we carried out loss of heterozygosity (LOH) studies in 26...

Clinicopathological and biological significance of mitotic centromere-associated kinesin overexpression in human gastric cancer

Nakamura, Y, Tanaka, F, Haraguchi, N, Mimori, K, Matsumoto, T, Inoue, H, ...

Mitotic centromere-associated kinesin (MCAK) is a microtubule (MT) depolymerase necessary for ensuring proper kinetochore MT attachment during spindle formation. To determine MCAK expression status...

Phase II study of irinotecan combined with carboplatin in previously untreated small-cell lung cancer

Kinoshita, A, Fukuda, M, Soda, H, Nagashima, S, Fukuda, M, Takatani, H, ...

To determine the efficacy and toxicity of irinotecan combined with carboplatin, we conducted a phase II trial. Eligibility criteria were: chemotherapy-naïve, small-cell lung cancer (SCLC), good...

Thymidine phosphorylase/platelet-derived endothelial cell growth factor is upregulated in advanced solid types of gastric cancer

Yoshikawa, T, Suzuki, K, Kobayashi, O, Sairenji, M, Motohashi, H, Tsuburaya, A, ...

Previous studies demonstrated that the immunohistochemical expression of thymidine phosphorylase (dThdPase) was related with distant metastasis and disease progression. In this study we investigated...

Tumour-amplified kinase BTAK is amplified and overexpressed in gastric cancers with possible involvement in aneuploid formation

Sakakura, C, Hagiwara, A, Yasuoka, R, Fujita, Y, Nakanishi, M, Masuda, K, ...

Our recent analysis of gastric cancers using comparative genomic hybridization (CGH) revealed a novel high frequent copy number increase in the long arm of chromosome 20. Tumour-amplified kinase BTAK...

Inhibition of erythropoietin signalling destroys xenografts of ovarian and uterine cancers in nude mice

Yasuda, Y, Musha, T, Tanaka, H, Fujita, Y, Fujita, H, Utsumi, H, ...

We have recently shown that malignant tumours from the ovary and uterus expressed erythropoietin (Epo) and its receptor (EpoR), and that deprivation of Epo signal in tumour blocks induced death of...

Overexpression of the p53-inducible brain-specific angiogenesis inhibitor 1 suppresses efficiently tumour angiogenesis

Duda, D G, Sunamura, M, Lozonschi, L, Yokoyama, T, Yatsuoka, T, Motoi, F, ...

The brain-specific angiogenesis inhibitor 1 gene has been isolated in an attempt to find fragments with p53 “functional” binding sites. As reported herein and by others, brain-specific...