S. Kobayashi

Publication List Details

Period

1963 - 2009

Number

214

Co-Authors

Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)

Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...

X-ray flashes (XRFs) are a class of gamma-ray bursts (GRBs) with the peak energy of the time-integrated spectrum, Ep, below 30 keV, whereas classical GRBs have Ep of a few hundreds keV. Apart from Ep...

Evidence for energy injection and a fine-tuned central engine at optical wavelengths in GRB 070419A (2009)

Melandri, A., Guidorzi, C., Kobayashi, S., Bersier, D., Mundell, C. G., Milne, P., ...

We present a comprehensive multiwavelength temporal and spectral analysis of the FRED GRB 070419A. The early-time emission in the $\gamma$-ray and X-ray bands can be explained by a central engine...

Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)

Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...

Original article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory (ESO). DOI: 10.1051/0004-6361/200911719

Search for a light pseudoscalar particle in the decay $K^0_L \to \pi^0 \pi^0 X$ (2008)

Tung, Y. C., Hsiung, Y. B., Wu, M. L., Chen, K. F., Ahn, J. K., Akune, Y., ...

We performed a search for a light pseudoscalar particle $X$ in the decay $K_L^0->pi0pi0X$, $X->\gamma\gamma$ with the E391a detector at KEK. Such a particle with a mass of 214.3 MeV/$c^2$ was...

GW approximation with LSDA+U method and applications to NiO, MnO, and V$_2$O$_3$ (2008)

Kobayashi, S., Nohara, Y., Yamamoto, S., Fujiwara, T.

A GW approximation (GWA) method named U+GWA is proposed, where we can start GWA with more localized wave functions obtained by the local spin-density approximation (LSDA)+U method. Then GWA and U+GWA...

Multiwavelength analysis of the intriguing GRB 061126: the reverse shock scenario and magnetization (2008)

Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...

We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multi-color optical imaging from ten ground-based telescopes. GRB 061126 was a...

The Early-time Optical Properties of Gamma-Ray Burst Afterglows (2008)

Melandri, A., Mundell, C. G., Kobayashi, S., Guidorzi, C., Gomboc, A., Steele, I. A., ...

We present a multiwavelength analysis of 63 Gamma-Ray Bursts observed with the world's three largest robotic optical telescopes, the Liverpool and Faulkes Telescopes (North and South). Optical...

Superplastic deformation in W-0.5 wt.% TiC with approximately 0.1 mu m grain size (2008)

Kurishita, H., Matsuo, S., Arakawa, H., Kobayashi, S., Nakai, K., Takida, T., ...

In order to reveal the occurrence of superplasticity in ultra-fine grained W-TiC, W-0.5 wt. % TiC consolidates were fabricated utilizing mechanical alloying (MA) in purified H, (W-0.5TiC-H-2) or Ar...

The Early-Time Optical Properties of Gamma-Ray Burst Afterglows. (2008)

Melandri, A., Mundell, C.G., Kobayashi, S., Guidorzi, C., Gomboc, A., Steele, I.A., ...

Original article can be found at: http://www.iop.org/EJ/journal/apj Copyright American Astronomical Society DOI: 10.1086/591243 [Full text of this article is not available in the UHRA]

DECIGO pathfinder (2008)

Ando, M., Kawamura, Seiji, Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...

DECIGO pathfinder (DPF) is a milestone satellite mission for DECIGO (DECi-hertz Interferometer Gravitational wave Observatory) which is a future space gravitational wave antenna. DECIGO is expected...

The Japanese space gravitational wave antenna: DECIGO (2008)

Kawamura, Seiji, Ando, M., Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. DECIGO is expected to open a new window of observation for gravitational...

The Japanese space gravitational wave antenna - DECIGO (2008)

Kawamura, Seiji, Ando, M., Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. The goal of DECIGO is to detect gravitational waves from various kinds of...

Multiwavelength analysis of the intriguing GRB 061126: The reverse shock scenario and magnetization (2008)

Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...

We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multicolor optical imaging from 10 ground-based telescopes. GRB 061126 was a long...

A role for the aryl hydrocarbon receptor and the dioxin TCDD in rheumatoid arthritis (2008)

Kobayashi, S., Okamoto, H., Iwamoto, T., Toyama, Y., Tomatsu, T., Yamanaka, H., ...

Objective. Environmental factors are involved in RA pathogenesis and epidemiological studies have suggested that smoking is an environmental risk factor for RA. The...

DNA Splicing Systems based on Post Systems (2007)

C. Ferretti, S. Kobayashi, T. Yokomori

. DNA splicing systems (or simply splicing systems) are a new type of generative mechanisms for modeling DNA recombination behaviors, initiated by Tom Head's seminal paper ([8]). For this...

Breaking New Grounds Over 3000 MMAC/s: A Broadband Mobile Multimedia Modem DSP (2007)

Gerhard Fettweis, M. Weiss, W. Drescher, U. Walther, F. Engel, S. Kobayashi, ...

Future DSP architectures need to be developed for paving the way into a generation of high scale signal processing power, i.e. greater than 1000M MAC/s (multiply accumulate per second). This can only...

The Remarkable Afterglow of GRB 061007: Implications for Optical Flashes and GRB Fireballs (2007)

Mundell, Carole G., Melandri, Andrea, Guidorzi, Cristiano, Kobayashi, S., Steele, I.A., Malesani, Daniele, ...

We present a multiwavelength analysis of Swift GRB 061007. The 2-m robotic Faulkes Telescope South (FTS) began observing 137 s after the onset of the gamma-ray emission, when the optical counterpart...

Gyrokinetic simulations of collisionless magnetic reconnection (2007)

Rogers, B. N., Kobayashi, S., Ricci, P., Dorland, W., Drake, J., Tatsuno, T.

Linear and nonlinear gyrokinetic simulations of collisionless magnetic reconnection in the presence of a strong guide field are presented. A periodic slab system is considered with a sinusoidally...

A Review of Early-Time Optical Follow-ups with 2-m Robotic Telescopes (2006)

Gomboc, A., Guidorzi, C., Mundell, C. G., Melandri, A., Monfardini, A., Bersier, D., ...

We summarise recent deep, rapid GRB follow-up observations using the RoboNet-1.0 network which comprises three fully-robotic 2-m telescopes, the Liverpool Telescope and the Faulkes Telescopes North...

The circumburst environment of a FRED GRB: study of the prompt emission and X-ray/optical afterglow of GRB 051111 (2006)

Guidorzi, C., Gomboc, A., Kobayashi, S., Mundell, C. G., Rol, E., Bode, M. F., ...

We report a multi-wavelength analysis of the prompt emission and early afterglow of GRB051111 and discuss its properties in the context of current fireball models. The detection of GRB051111 by the...

Minority Spin Condensate in Spin-Polarized Superfluid $^3$He-A$_1$ Phase (2006)

Yamaguchi, A., Kobayashi, S., Ishimoto, H., Kojima, H.

The spin-polarized superfluid $^3$He A$_1$ phase, which forms below 3 mK in external magnetic field, serves as a material in which theoretical notions of fundamental magnetic processes and...

The Remarkable Afterglow of GRB 061007: Implications for Optical Flashes and GRB Fireballs (2006)

Mundell, C. G., Melandri, A., Guidorzi, C., Kobayashi, S., Steele, I. A., Malesani, D., ...

We present a multiwavelength analysis of Swift GRB 061007. The 2-m robotic Faulkes Telescope South (FTS) began observing 137 s after the onset of the gamma-ray emission, when the optical counterpart...

Alveolar soft-part sarcoma of the retroperitoneum (2006)

Ishikawa, M, Ishizuka, O, Nakayama, T, Kobayashi, S, Igawa, Y, Nishizawa, O, ...

The definitive version is available at www.blackwell-synergy.com.

Anatomy of A Dark Burst - The Afterglow of GRB 060108 (2006)

Oates, S. R., Mundell, C. G., Piranomonte, S., Page, K. L., De Pasquale, M., Monfardini, A., ...

We report the first detection of an optical afterglow of a GRB (060108) that would have been classified as 'dark' in the absence of deep, rapid ground-based optical imaging with the 2-m robotic...

Swift observations of GRB050712 (2006)

De Pasquale, M., Grupe, D., Poole, T. S., Breeveld, A. A., Zane, S., Rosen, S. R., ...

We present the results of X-ray and optical observations of GRB050712 performed by Swift. The X-ray lightcurve of this burst exhibits episodes of flares in the first 1000s, the same epoch at which...

The Japanese space gravitational wave antenna - DECIGO (2006)

Kawamura, Seiji, Nakamura, T., Ando, M., Seto, N., Tsubono, K., Numata, K., ...

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. It aims at detecting various kinds of gravitational waves between 1 mHz and...

Electronic structure of antiferromagnetic LaMnO3 and the effects of charge polarization (2006)

Nohara, Y., Yamasaki, A., Kobayashi, S., Fujiwara, T.

The electronic structure of A-type antiferromagnetic insulator LaMnO3 is investigated by the GW approximation. The band gap and spectrum are in a good agreement with experimental observation. The...

Plasma breakdown using second-harmonic EC waves in helical devices (2006)

Nagasaki, K., Mizuuchi, T., Sano, F., Okada, H., Kobayashi, S., Cappa, A., ...

Plasma breakdown using second-harmonic electron cyclotron (EC) waves has been studied experimentally in three helical devices, Heliotron J, TJ-II and CHS. Recent technological progress on electron...

Engineering of Escherichia coli L-serine O-acetyltransferase on the basis of crystal structure: desensitization to feedback inhibition by L-cysteine (2006)

Kai, Y., Kashiwagi, T., Ishikawa, K., Ziyatdinov, M. K., Redkina, E. I., Kiriukhin, M. Y., ...

L-Serine O-acetyltransferase (SAT) from Escherichia coli catalyzes the first step of L-cysteine synthesis in E.coli and is strictly inhibited by the second step product, L-cysteine. To establish a...

The Giant X-ray Flare of GRB 050502B: Evidence for Late-Time Internal Engine Activity (2005)

Falcone, A. D., Burrows, D. N., Lazzati, D., Campana, S., Kobayashi, S., Zhang, B., ...

Until recently, X-ray flares during the afterglow of gamma ray bursts (GRBs) were a rarely detected phenomenon, thus their nature is unclear. During the afterglow of GRB 050502B, the largest X-ray...

Swift and XMM observations of the dark GRB 050326 (2005)

Moretti, A., De Luca, A., Malesani, D., Campana, S., Tiengo, A., Cucchiara, A., ...

We present Swift and XMM observations of GRB 050326, detected by Swift-BAT. The fluence was 7.7x10^-6 erg cm^-2 (20-150 keV), and its spectrum was hard, with a power law photon index 1.25. The...

Swift observations of the X-ray bright GRB 050315 (2005)

Vaughan, S., Goad, M. R., Beardmore, A. P., O'Brien, P. T., Osborne, J. P., Page, K. L., ...

This paper discusses Swift observations of the gamma-ray burst GRB 050315 (z=1.949) from 80 s to 10 days after the onset of the burst. The X-ray light curve displayed a steep early decay (t^-5) for...

A short gamma-ray burst apparently associated with an elliptical galaxy at redshift z = 0.225 (2005)

Sarazin, C L, O'Brien, P T, Zhang, B, Barthelmy, S D, ...

Gamma-ray bursts (GRBs) come in two classes: long (> 2 s), soft-spectrum bursts and short, hard events. Most progress has been made on understanding the long GRBs, which are typically observed at...

Bright X-ray Flares in Gamma-Ray Burst Afterglows (2005)

Burrows, D. N., Romano, P., Falcone, A., Kobayashi, S., Zhang, B., Moretti, A., ...

Gamma-ray burst (GRB) afterglows have provided important clues to the nature of these massive explosive events, providing direct information on the nearby environment and indirect information on the...

A short gamma-ray burst apparently associated with an elliptical galaxy at redshift z = 0.225 (2005)

Gehrels, N., Sarazin, C.L., O'Brien, P.T., Zhang, B., Barbier, L., Barthelmy, S.D., ...

Gamma-ray bursts (GRBs) come in two classes: long (> 2s), soft-spectrum bursts and short, hard events. Most progress has been made on understanding the long GRBs, which are typically observed at high...

Udfordring eller mulighed for økologien (2005)

El-Nagger, A., Ounmaa, A., Muukka, E., Zaleckas, E., Abraityté, G., Jansons, I., ...

During one intensive week in October 2005, the authors were gathered to discuss the impact that globalisation has on the Organic Food Systems and the opportunities that globalisation opens up for...

Mitsubishi Electric Research Laboratories (2004)

Http Www Merl, S. Kobayashi, H. Poor, H. V. Molisch

In this paper, we analyze the performance of a binary phase shift keyed time-hopping impulse radio system with pulse-based polarity randomization. Effect of multiple access interference is...

Synthesis of a polyphenol with a mesoionic 6-oxo-1,6-dihydropyrimidin-3-ium-4-olate as pendant group and its photochemical behavior (2003)

Tonami, H., Uyama, H., Kobayashi, S., Menges, B., Mittler, Silvia, Theis, A., ...

This study deals with synthesis of a polyphenol bearing photosensitive groups, and its photochemical behavior upon UV radiation. Mesoionic...

A platform-based highly parallel digital signal processor (2001)

T. Richter, W. Drescher, F. Engel, S. Kobayashi, V. Nikolajevic, M. Weiss, ...

Realizations of demanding applications particularly in the field of mobile communications often require processing performance which is far beyond what is delivered by DSPs today. To avoid designing...

A Universal Generalization for Temporal-Difference Learning Using Haar Basis Functions (2000)

Susumu Katayama, Hajime Kimura, S. Kobayashi

We propose an algorithm efficiently implementing TD() using (the infinite tree of) Haar basis functions. The algorithm can maintain and update the information of the infinite tree of coefficients in...

Hydrogenation of poly(vinyl cinnamate) thin layer (1999)

Kim, EJ, Park, OO, Kawanami, Y, Furue, H, Kobayashi, S

Hydrogenation of poly(vinyl cinnamate) was performed with RhH(CO)(PPh3)(3) catalyst with intent to clarify the photoalignment mechanism of liquid crystals on poly(vinyl cinnamate) alignment layer....

Analysis of immunosuppressive proteins in serum of liver-transplanted rats by using an anti-LSF-1 affinity column (1998)

Kobayashi, S, Goto, S, Lord, R, Shimizu, Y, Swanson, C, Vari, F, ...

Liver suppressor factor one (LSF-1) is a 40-kDa immunosuppressive protein in the serum of rats 60 days after orthotopic liver transplantation (OLT) between the nonrejector combination of DA donors...

Analysis of immunosuppressive proteins in serum of liver-transplanted rats by using an anti-LSF-1 affinity column (1998)

Kobayashi, S, Goto, S, Lord, R, Shimizu, Y, Swanson, C, Vari, F, ...

Liver suppressor factor one (LSF-1) is a 40-kDa immunosuppressive protein in the serum of rats 60 days after orthotopic liver transplantation (OLT) between the nonrejector combination of DA donors...

Breaking New Grounds Over 3000 M MAC/s: A Broadband Mobile Multimedia Modem DSP (1998)

Gerhard Fettweis, M. Weiss, W. Drescher, U. Walther, F. Engel, S. Kobayashi, ...

Future DSP architectures need to be developed for paving the way into a generation of high scale signal processing power, i.e. greater than 1000M MAC/s (multiply accumulate per second). This can only...

3-D eddy current analysis in moving conductor of permanent magnet type of retarder using moving coordinate system (1997)

Muramatsu, Kazuhiro, Takahashi, N., Hashio, T., Yamada, Chuji, Ogawa, Makoto, Kobayashi, S., ...

A 3-D DC steady state eddy current analysis of a permanent magnet type of retarder which rotates at high speed is carried out using a moving coordinate system. The method of DC steady-state analysis...

Plasma influence on the dispersion properties of finite-length, corrugated waveguides (1996)

Shkvarunets, A., Kobayashi, S., Weaver, J., Carmel, Y., Rodgers, J., Antonsen, T., ...

Copyright 1996 American Physical Society. This article can also be found on the publishers website: http://prola.aps.org/abstract/PRE/v53/i3/pR2045_1

Dna Splicing Systems And Post Systems (1996)

C. Ferretti, S. Kobayashi

This paper concerns the formal study on the generative powers of extended splicing

On the Universality of Post and Splicing Systems (1996)

C. Ferretti, G. Mauri, S. Kobayashi, T. Yokomori

In search for a universal splicing system, in this paper we present a Post system universal for the class of Post systems, and we discuss its translation into an extended splicing system with...

Electromagnetic properties of open and closed overmoded slow-wave resonators for interaction with relativistic electron beams (1994)

Main, W., Carmel, Y., Ogura, K., Weaver, J., Nusinovich, G., Kobayashi, S., ...

This article can also be found on the publishers website: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=00338269

Electrooencephalographic activity associated with shifts of visuospatial attention (1994)

Yamaguchi, S., Tsuchiya, H., Kobayashi, S.

The neural processes underlying shifts of visuospatial attention were studied in normal adults by non-invasive recording of brain electrical activity. Event-related evoked potentials (ERPs) were...

Chrome congestive heart failure: Activation and destruction of platelets in patients with rheumatic heart disease (1994)

KUNISHIMA, S., HATTORI, M., KOBAYASHI, S., HATTORI, H., IWAMA, Y., IMAI, Y., ...

We evaluated the activation and destruction of platelets in 24 patients with rheumatic heart disease (RHD) involving the mitral valve. Ex vivo platelet aggregation induced by adenosine diphosphate...

A Passive Measurement Technique for Characterisation of High-Risk Houses in Japan Due to Enhanced Levels of Indoor Radon and Thoron Concentrations (1992)

Doi, M., Kobayashi, S., Fujimoto, K.

A passive dosemeter has been developed which can measure radon and thoron concentrations separately. The dosemeter has a structure of two hemispheric chambers, one 120 mm_ and the other 75 mm_, being...

Etch Pit Formation Model During Chemical and Electrochemical Etching in Polycarbonate Foil (1991)

Doi, M., Fujimoto, K., Kobayashi, S.

In addition to conventional chemical etching (CE), electrochemical etching (ECE), is usually required for the initial tiny a tracks in polycarbonate (PC) to enlarge to visible etch pits. A model...

MEASUREMENTS OF INPLANE POLARIZATION TRANSFER COEFFICIENT IN 24Mg(p,p') REACTION AT Ep=65 MeV (1990)

Sakemi, Y., Sakaguchi, H., Nakamura, M., Murakami, T., Yosoi, M., Togawa, H., ...

Elastic and inelastic spin rotation parameters Kxx' of protons scattered from 24Mg were measured for incident energies of 65MeV. Dirac phenomenology has been applied to the elastic and inelastic...

POLARIZATION TRANSFER MEASUREMENTS FOR THE (d, pX) REACTION AT Ed=65 MeV AND THE REACTION MECHANISM FOR THE PROTONS IN THE CONTINUUM (1990)

Ieiri, M., Sakaguchi, H., Nakamura, M., Noro, T., Sakamoto, H., Yosoi, M., ...

The double-differential cross section, analyzing power, polarization and polarization transfer coefficient were measured for the (d, pX) reaction with 65 MeV deuterons for 12C at 14.0° and for 58Ni...

MEASUREMENTS OF INPLANE POLARIZATION TRANSFER COEFFICIENT IN 24Mg(p,p') REACTION AT Ep=65 MeV (1990)

Sakemi, Y., Sakaguchi, H., Nakamura, M., Murakami, T., Yosoi, M., Togawa, H., ...

Elastic and inelastic spin rotation parameters Kxx' of protons scattered from 24Mg were measured for incident energies of 65MeV. Dirac phenomenology has been applied to the elastic and inelastic...

POLARIZATION TRANSFER MEASUREMENTS FOR THE (d, pX) REACTION AT Ed=65 MeV AND THE REACTION MECHANISM FOR THE PROTONS IN THE CONTINUUM (1990)

Ieiri, M., Sakaguchi, H., Nakamura, M., Noro, T., Sakamoto, H., Yosoi, M., ...

The double-differential cross section, analyzing power, polarization and polarization transfer coefficient were measured for the (d, pX) reaction with 65 MeV deuterons for 12C at 14.0° and for 58Ni...

MEASUREMENTS OF INPLANE POLARIZATION TRANSFER COEFFICIENT IN 24Mg(p,p') REACTION AT Ep=65 MeV (1990)

Sakemi, Y., Sakaguchi, H., Nakamura, M., Murakami, T., Yosoi, M., Togawa, H., ...

Elastic and inelastic spin rotation parameters Kxx' of protons scattered from 24Mg were measured for incident energies of 65MeV. Dirac phenomenology has been applied to the elastic and inelastic...

POLARIZATION TRANSFER MEASUREMENTS FOR THE (d, pX) REACTION AT Ed=65 MeV AND THE REACTION MECHANISM FOR THE PROTONS IN THE CONTINUUM (1990)

Ieiri, M., Sakaguchi, H., Nakamura, M., Noro, T., Sakamoto, H., Yosoi, M., ...

The double-differential cross section, analyzing power, polarization and polarization transfer coefficient were measured for the (d, pX) reaction with 65 MeV deuterons for 12C at 14.0° and for 58Ni...

Examination of Hill's latest yield criterion using experimental data for various anisotropic sheet metals (1985)

Kobayashi, S., Caddell, Robert M., Hosford, William F.

Using experimental data published earlier [Vial et al., Int. J. Mech. Sci. 25, 899 (1983)], values of the exponent m in the Hill (1979) yield criterion [Hill, Math. Proc. Cambridge Phil. Soc. 85, 179...

ZEEMAN CRITICAL FIELD IN SUPERCONDUCTING SMALL PARTICLE (1978)

Kobayashi, S., Nomura, K., Sasaki, W.

The superconductivity of small Al particles was destroyed by the Zeeman effect in high magnetic field. The critical field was larger than what mean field thory predicted. It is pointed out that the...

ZEEMAN CRITICAL FIELD IN SUPERCONDUCTING SMALL PARTICLE (1978)

Kobayashi, S., Nomura, K., Sasaki, W.

The superconductivity of small Al particles was destroyed by the Zeeman effect in high magnetic field. The critical field was larger than what mean field thory predicted. It is pointed out that the...

ZEEMAN CRITICAL FIELD IN SUPERCONDUCTING SMALL PARTICLE (1978)

Kobayashi, S., Nomura, K., Sasaki, W.

The superconductivity of small Al particles was destroyed by the Zeeman effect in high magnetic field. The critical field was larger than what mean field thory predicted. It is pointed out that the...

NUCLEAR RELAXATION IN METALLIC SMALL PARTICLES (1977)

Kobayashi, S.

N.M.R. relaxation of 65Cu N.M.R. in small Cu particles 100 Å, 50 Å, 25 Å and 15 Å in diameters, are measured at 1.4 K and 0.66 K. The relaxation in 25 Å and 15 Å particles is found to be much...

NUCLEAR RELAXATION IN METALLIC SMALL PARTICLES (1977)

Kobayashi, S.

N.M.R. relaxation of 65Cu N.M.R. in small Cu particles 100 Å, 50 Å, 25 Å and 15 Å in diameters, are measured at 1.4 K and 0.66 K. The relaxation in 25 Å and 15 Å particles is found to be much...

NUCLEAR RELAXATION IN METALLIC SMALL PARTICLES (1977)

Kobayashi, S.

N.M.R. relaxation of 65Cu N.M.R. in small Cu particles 100 Å, 50 Å, 25 Å and 15 Å in diameters, are measured at 1.4 K and 0.66 K. The relaxation in 25 Å and 15 Å particles is found to be much...

Electro-optical properties of twisted nematic liquid crystals : An application to voltage controllable color formation (1975)

Mada, H., Kobayashi, S.

Optimum conditions for the voltage controllable color formation (VCCF) using nematic liquid crystals with a positive dielectric anisotropy which have homogeneous alignment were studied. It is shown...

Electro-optical properties of twisted nematic liquid crystals : An application to voltage controllable color formation (1975)

Mada, H., Kobayashi, S.

Optimum conditions for the voltage controllable color formation (VCCF) using nematic liquid crystals with a positive dielectric anisotropy which have homogeneous alignment were studied. It is shown...

Electro-optical properties of twisted nematic liquid crystals : An application to voltage controllable color formation (1975)

Mada, H., Kobayashi, S.

Optimum conditions for the voltage controllable color formation (VCCF) using nematic liquid crystals with a positive dielectric anisotropy which have homogeneous alignment were studied. It is shown...

The effects of diltiazem on hepatic drug metabolizing enzymes in man using antipyrine, trimethadione and debrisoquine as model substrates.

Sakai, H, Kobayashi, S, Hamada, K, Iida, S, Akita, H, Tanaka, E, ...

Six healthy male subjects were given single oral doses of antipyrine (7 mg kg-1), trimethadione (4 mg kg-1) and debrisoquine (10 mg) before and during diltiazem treatment (30 mg three times daily...

Endothelin-1 and endothelin-3 regulate differently vasoconstrictor responses of smooth muscle of the porcine coronary artery.

Ushio-Fukai, M, Nishimura, J, Kobayashi, S, Kanaide, H

1. Using front-surface fluorometry of fura-2 and medial strips of the porcine coronary artery, we investigated mechanisms by which endothelin-1 (ET-1) and ET-3 function as vasoconstrictors. 2. In the...

Cytosolic calcium concentration-force relation during contractions in the rabbit femoral artery: time-dependency and stimulus specificity.

Fukuizumi, Y, Kobayashi, S, Nishimura, J, Kanaide, H

1. By use of front-surface fluorometry with fura-2-loaded rabbit femoral arterial strips, both the cytosolic Ca2+ concentration ([Ca2+]i) and force were simultaneously monitored. By utilizing the...

4-Hydroxy-2-methyl-4-phenyl-1,2,3,4-tetrahydroisoquinoline (PI-OH): a new potentiator of sympathomimetic amines on the rat anococcygeus muscle.

Ishida, Y., Koga, N., Nanbu, T., Kihara, M., Kobayashi, S.

1. The potentiating effects of racemic 4-hydroxy-2-methyl-4-phenyl-1,2,3,4-tetrahydroisoquinoline (PI-OH), cocaine, desipramine and nomifensine on the concentration-response curves of the rat...

Long-lasting activation of cation current by low concentration of endothelin-1 in mouse fibroblasts and smooth muscle cells of rabbit aorta.

Enoki, T., Miwa, S., Sakamoto, A., Minowa, T., Komuro, T., Kobayashi, S., ...

1. Recombinant human ETA receptors were expressed in a mouse fibroblast cell line (Ltk- cell) and functional coupling of the receptors with Ca2+ permeable channels at low concentrations of...

Evidence for the presence of endothelin ETA receptors in endothelial cells in situ on the aortic side of porcine aortic valve.

Nishimura, J., Aoki, H., Chen, X., Shikasho, T., Kobayashi, S., Kanaide, H.

1. In the present study, we determined whether ETA receptors are present on endothelial cells in situ, by use of front-surface fluorometry of fura-2-loaded porcine aortic valvular strips and reverse...

Mechanism of endothelium-dependent relaxation induced by substance P in the coronary artery of the pig.

Kuroiwa, M., Aoki, H., Kobayashi, S., Nishimura, J., Kanaide, H.

1. Using front-surface fluorometry of fura-2-loaded porcine coronary arterial strips with the endothelium intact, we investigated the mechanisms of vasorelaxation induced by substance P (SP). Fura-2...

Dual regulation of cerebrovascular tone by UTP: P2U receptor-mediated contraction and endothelium-dependent relaxation.

Miyagi, Y., Kobayashi, S., Nishimura, J., Fukui, M., Kanaide, H.

1. The mechanisms of vascular tone regulation by extracellular uridine 5'-triphosphate (UTP) were investigated in bovine middle cerebral arterial strips. Changes in cytosolic Ca2+ concentration...

The mechanism of relaxation induced by atrial natriuretic peptide in the porcine renal artery.

Seguchi, H., Nishimura, J., Toyofuku, K., Kobayashi, S., Kumazawa, J., Kanaide, H.

1. The mechanisms underlying the relaxation of the porcine renal artery induced by atrial natriuretic peptide (ANP) were investigated, using front-surface fluorimetry with fura-2 and receptor-coupled...

Relationship between cytosolic calcium concentration and force in the papaverine-induced relaxation of medial strips of pig coronary artery.

Aoki, H., Nishimura, J., Kobayashi, S., Kanaide, H.

1. The mechanisms of vasorelaxation induced by papaverine were investigated using front-surface fluorometry and fura-2-loaded medial strips of the pig coronary artery. 2. In the presence of...

Sensitivity of G-protein involved in endothelin-1-induced Ca2+ influx to pertussis toxin in porcine endothelial cells in situ.

Aoki, H., Kobayashi, S., Nishimura, J., Kanaide, H.

1. We designed a new method to determine quantitatively the intracellular Ca2+ concentration ([Ca2+]i) in endothelial cells in situ, using front-surface fluorometry and fura-2-loaded porcine aortic...

Microcapsule agglutination test for Treponema pallidum antibodies. A new serodiagnostic test for syphilis.

Kobayashi, S, Yamaya, S I, Sugahara, T, Matuhasi, T

For the serodiagnosis of syphilis a quantitative passive agglutination (MCA-TP) test for antibodies to Treponema pallidum was performed with chemically stable microcapsules with no antigenic activity...

Blink induced centrotemporal spikes in benign childhood epilepsy with centrotemporal spikes

Yamagata, T., Momoi, M., Miyao, M., Kobayashi, S.

A 10 year old girl with benign childhood epilepsy with centrotemporal spikes showed centrotemporal spikes induced by blinking even in a dark room. Spikes could not be induced by photic stimulation,...

Increased circulating endothelial progenitor cells in patients with bacterial pneumonia: evidence that bone marrow derived cells contribute to lung repair

Yamada, M, Kubo, H, Ishizawa, K, Kobayashi, S, Shinkawa, M, Sasaki, H

Background: Tissue repair often occurs in organs damaged by various inflammatory diseases including pneumonia. Inflammatory stimuli induce a rapid and massive release of inflammatory cells from the...

Thoracic duct cyst in supraclavicular region.

Maruyama, M., Kobayashi, S., Kasuga, Y., Fujimori, M., Yokoyama, S., Shingu, K., ...

A 28-year-old female attended an outpatient clinic in October, 1989, because of a tumor in the left supraclavicular fossa, detected in a health examination. Following exploratory puncture of the...

Product Differentiation, Research and Development, and International Trade Policy.

Kobayashi, S.

pricing ; competition ; research and development ; trade policy

Product Differentiation and Research and Development.

Kobayashi, S.

pricing ; competition ; research and development

A Review of Recent Developments in Japanese Agriculture and Agricultural Policy

Kobayashi, S., Morison, J.B., Riethmuller, P.

This paper aims to review major recent developments in Japanese agriculture policy and to evaluate what these changes are likely to mean for the agricultural sector. An overview is provided of the...

Japanese Agricultural Policies Towards 2000: Swimming with the Tide

Riethmuller, P., Kobayashi, S., Shogenji, S.

Japanese agricultural policy has undergone substantial change in the last year. Since the completion of the Uruguay Round, the rice market has been partially opened, import quotas on agricultural...

FGF10/FGFR2 signal induces cell migration and invasion in pancreatic cancer

Nomura, S, Yoshitomi, H, Takano, S, Shida, T, Kobayashi, S, Ohtsuka, M, ...

Pancreatic cancer has one of the highest mortalities among all malignancies and there is an urgent need for new therapy. This might be achieved by resolving the detailed biological mechanism, and in...

Interleukin 6 is a cause of flu-like symptoms in treatment with a deoxycytidine analogue.

Masuda, N., Negoro, S., Takeda, K., Kurata, N., Kuwabara, T., Kobayashi, S., ...

The precise mechanism of fever and flu-like syndrome that occurs in treatment with deoxycytidine analogues remains unclear. This study demonstrated a strong correlation between plasma interleukin 6...

HLA-DR antigen expression in colorectal carcinomas: influence of expression by IFN-gamma in situ and its association with tumour progression.

Matsushita, K., Takenouchi, T., Kobayashi, S., Hayashi, H., Okuyama, K., Ochiai, T., ...

The authors attempted to investigate the host's immune response against colorectal carcinoma through the expression of HLA-DR antigen on carcinoma cells (Ca) on normal epithelia immediately adjacent...