Field Installable Plastic Multi-Fiber Connector, (9999)
Yokosuka,H., Watanabe,O., Tamaki,Y., Koyama,K., Furukawa,H.
A precisely molded plastic multifiber connector has been developed for a five-fiber ribbon-type cable. The connector has superior characteristics such a slow insertion loss, satisfactory mechanical...
Komatsu, E., Afshordi, N., Bartolo, N., Baumann, D., Bond, J. R., Buchbinder, E. I., ...
A new and powerful probe of the origin and evolution of structures in the Universe has emerged and been actively developed over the last decade. In the coming decade, non-Gaussianity, i.e., the study...
Yamato, Y., Matsukawa, M., Suryanarayanan, R., Nimori, S., Apostu, M., Revcolevschi, A., ...
We report a significant decrease in the low-temperature resistance induced by the application of an electric current on the $ab$-plane in the paramagnetic insulating (PMI) state of...
In this paper we propose a new model for leakage mechanism in tail-mode bits of DRAM data retention characteristics. For main-mode bits, leakage current can be attributed to junction...
Prevalence of Adult-Onset Multifactorial Disease among Offspring of Atomic Bomb Survivors (2008)
S. Fujiwara, A. Suyama, J. B. Cologne, M. Akahoshi, M. Yamada, G. Suzuki, ...
Fujiwara, S., Suyama, A., Cologne, J. B., Akahoshi, M., Yamada, Y., Suzuki, G., Koyama, K., Takahashi, N., Kasagi, F., Grant, E. J., Lagarde, F., Hsu, W. L., Furukawa, K., Ohishi, W., Tatsukawa, Y. ,...
Uchiyama, H., Matsumoto, H., Tsuru, T. G., Koyama, K., Bamba, A.
We observed the brightest part of HESS J1825-137 with the Suzaku XIS, and found diffuse X-rays extending at least up to 15' (~ 17 pc) from the pulsar PSR J1826-1334. The spectra have no emission...
Takahashi, T., Kelley, R., Mitsuda, K., Kunieda, H., Petre, R., White, N., ...
The NeXT (New exploration X-ray Telescope), the new Japanese X-ray Astronomy Satellite following Suzaku, is an international X-ray mission which is currently planed for launch in 2013. NeXT is a...
Yamato, Y., Matsukawa, M., Kumagai, T., Suryanarayanan, R., Nimori, S., Apostu, M., ...
e report the effect of pressure on the steplike magnetostriction of single crystalline bilayered manganite (LaPr)1.2Sr1.8Mn2O8, for our understandings of the ultrasharp nature of the field-induced...
X-Ray Observations of the Galactic Center with Suzaku (2007)
Koyama, K., Hyodo, Y., Inui, T., Nobukawa, M., Mori, H.
We report on the diffuse X-ray emissions from the Galactic center (GCDX) observed with the X-ray Imaging Spectrometer (XIS) on board the Suzaku satellite. The highly accurate energy calibrations and...
Performance of the Charge Injection Capability of Suzaku XIS (2007)
Nakajima, H., Yamaguchi, H., Matsumoto, H., Tsuru, T. G., Koyama, K., Tsunemi, H., ...
A charge injection technique is applied to the X-ray CCD camera, XIS (X-ray Imaging Spectrometer) onboard Suzaku. The charge transfer inefficiency (CTI) in each CCD column (vertical transfer channel)...
X-ray diffraction on MnFeP0.46As0.54 in a magnetic field (2007)
Tegus, O., Koyama, K., Her, J.L., Watanabe, K., Brück, E.H., Buschow, K.H.J., ...
Suzaku Spectroscopy Study of Hard X-Ray Emission in the Arches Cluster (2006)
Tsujimoto, M., Hyodo, Y., Koyama, K.
We present the results of a Suzaku study of the Arches cluster. A high S/N spectrum in the 3-12 keV band was obtained with the XIS. We found that the spectrum consists of a thermal plasma, a hard...
The Competition between Staggered Field and Antiferromagnetic Interactions in Cugeo3:Fe (2004)
Demishev, S. V, Semeno, A. V., Pronin, A. A., Sluchanko, N. E., Samarin, N. A., Ohta, H., ...
The EPR spectra along different crystallographic axes for single crystals of CuGeO3 containing 1% of Fe impurity have been studied in the frequency range 60-360 GHz at temperatures 0.5-30 K. The...
Wide band X-ray Imager (WXI) and Soft Gamma-ray Detector (SGD) for the NeXT Mission (2004)
Takahashi, T., Awaki, A., Dotani, T., Fukazawa, Y., Hayashida, K., Kamae, T., ...
The NeXT mission has been proposed to study high-energy non-thermal phenomena in the universe. The high-energy response of the super mirror will enable us to perform the first sensitive imaging...
Scalar perturbations from brane-world inflation (2004)
Koyama, K., Langlois, D., Maartens, R., Wands, D.
We investigate the scalar metric perturbations about a de Sitter brane universe in a 5-dimensional anti de Sitter bulk. We compare the master-variable formalism, describing metric perturbations in a...
Demishev, S. V, Semeno, A. V., Pronin, A. A., Sluchanko, N. E., Samarin, N. A., Ohta, H., ...
For the CuGeO3 single crystals doped with 1% of Fe the quantum critical behavior in a wide temperature range 1-40 K is reported. The critical exponents for susceptibility along different...
Disorder driven quantum critical behavior in CuGeO3 doped with magnetic impurity (2004)
Demishev, S. V., Semeno, A. V., Sluchanko, N. E., Samarin, N. A., Pronin, A. A., Glushkov, V. V., ...
For the CuGeO3 doped with 1% of Fe the quantum critical behavior in a wide temperature range 1-40 K is reported. The critical exponents for susceptibility along different crystallographic axes are...
Tsujimoto, M., Koyama, K., Kobayashi, N., Saito, M., Tsuboi, Y., Chandler, C. J.
Using the Very Large Array (VLA) in the A-configuration, we have obtained a high-resolution 3.6 cm map of a hard X-ray source detected by the Chandra X-ray Observatory in a protostellar clump in...
Kodaka, M., Okamoto, Y., Koyama, K., Miyao, H.
Background. A new laryngeal mask airway, the ProSeal™ (PLMA), is said to be more difficult to insert than the laryngeal mask airway Classic™ (CLMA) using propofol anaesthesia. Therefore, we...
Role of IL-18 in pathogenesis of endometriosis (2004)
Oku, H., Tsuji, Y., Adachi, S., Kubota, A., Okamura, H., ...
BACKGROUND: Endometriosis is a complex disease associated with a wide range of immune responses, including pain, adhesion, exudation of peritoneal fluid, elevation of cytokine levels and generation...
Role of IL-18 in pathogenesis of endometriosis (2004)
Oku, H., Tsuji, Y., Adachi, S., Kubota, A., Okamura, H., ...
BACKGROUND: Endometriosis is a complex disease associated with a wide range of immune responses, including pain, adhesion, exudation of peritoneal fluid, elevation of cytokine levels and generation...
Fine Structure of the Thermal and Non-Thermal X-Rays in the SN 1006 Shell (2003)
Bamba, A., Yamazaki, R., Ueno, M., Koyama, K.
The North Eastern shell of SN 1006 is the most probable acceleration site of high energy electrons (up to about 100 TeV) with the Fermi acceleration mechanism at the shock front. We resolved...
Imanishi, K., Nakajima, H., Tsujimoto, M., Koyama, K., Tsuboi, Y.
We report on the results of a systematic study of X-ray flares from low-mass young stellar objects, using Chandra observations of the main region of the Rho Oph. From 195 X-ray sources, including...
XEUS: the x-ray evolving universe spectroscopy mission (2003)
Parmar, A.N., Hasinger, G., Arnaud, M., Barcons, X., Barret, D., Blanchard, A., ...
XEUS - the X-ray evolving universe spectroscopy mission (2003)
Parmar, A. N., Hasinger, G., Arnaud, M., Barcons, X., Barret, D., Blanchard, A., ...
Hasegawa, A., Fu, Y., Tsubamoto, H., Tsuji, Y., Sawai, H., Komori, S., ...
Human monoclonal antibody, MAb H6‐3C4, possesses strong sperm immobilizing activity. MAb H6‐3C4 has been suggested by several research groups to react with a carbohydrate moiety of male...
Tsujimoto, M., Koyama, K., Kobayashi, N., Goto, M., Tsuboi, Y., Tokunaga, A. T.
We conducted deep NIR imaging observations of the Orion molecular cloud 2 and 3 using QUIRC on the 88-inch telescope of the University of Hawaii. Our purposes are 1) to generate a comprehensive NIR...
Oshima, Y., Ohta, H., Koyama, K., Motokawa, M., Yamamoto, H. M., Kato, R., ...
Magnetooptical measurements of several quasi-two-dimensional (q2D) organic conductors, which have simple Fermi surface structure, have been performed by using a cavity perturbation technique. Despite...
Oshima, Y., Ohta, H., Koyama, K., Motokawa, M., Yamamoto, H. M., Kato, R.
Magnetooptical measurements of a quasi-two-dimensional (q2D) organic conductor (BEDT-TTF)2Br(DIA) (DIA=diiodoacetylene) were performed using a cavity perturbation technique with a millimeter vector...
Tsujimoto, M., Koyama, K., Tsuboi, Y., Chartas, G., Goto, M., Kobayashi, N., ...
We obtained near infrared (NIR) imaging with the Subaru Telescope of the class 0 protostar candidates in the Orion Molecular Cloud-3, two of which were discovered to have X-ray emission by the...
X-ray Sources and Star Formation Activity in the Sgr B2 Cloud Observed with Chandra (2002)
Takagi, S., Murakami, H., Koyama, K.
We report the X-ray population study in the giant molecular cloud Sagittarius B2 (SgrB2). More than a dozen of X-ray cloud members (and candidates) are discovered with Chandra. Two bright X-ray...
Chandra Observations of High Mass Young Stellar Objects in the Monoceros R2 molecular cloud (2001)
Kohno, M., Koyama, K., Hamaguchi, K.
We observed the Monoceros R2 molecular cloud with the ACIS-I array onboard the Chandra X-ray Observatory. From the central 3.2' x 3.2' region, we detect 154 sources above the detection limit of...
Tsujimoto, M., Koyama, K., Tsuboi, Y., Goto, M., Kobayashi, N.
We report X-ray results of the Chandra observation of Orion Molecular Cloud 2 and 3. A deep exposure of \sim 100 ksec detects \sim 400 X-ray sources in the field of view of the ACIS array, providing...
Chandra Observations of Diffuse X-Rays from the Sagittarius B2 Cloud (2001)
Murakami, H., Koyama, K., Maeda, Y.
We present the first Chandra results of the giant molecular cloud Sagittarius B2 (Sgr B2), located about 100 pc away from the Galactic center. Diffuse X-rays are clearly separated from one-and-a-half...
Sugizaki, M., Mitsuda, K., Kaneda, H., Matsuzaki, K., Yamauchi, S., Koyama, K.
The X-ray emission from the central region of the Galactic plane, |l|
Murakami, H., Koyama, K., Tsujimoto, M., Maeda, Y., Sakano, M.
We present an ASCA discovery of diffuse hard X-ray emission from the Sgr C complex with its peak in the vicinity of the molecular cloud core. The X-ray spectrum is characterized by a strong 6.4-keV...
Unusual Properties of X-Ray Emission near the Galactic Center (2000)
Tanaka, Y., Koyama, K., Maeda, Y., Sonobe, T.
The X-ray spectrum in a $1^{\circ}\times1^{\circ}$ region of the Galactic center observed with the ASCA satellite is examined in detail, following the first report by Koyama et al. (1996, AAA...
Matsumoto, H., Tsuru, T. G., Koyama, K., Awaki, H., Canizares, C. R., Kawai, N., ...
We present results from observations of the most famous starburst galaxy M82 with the High-Resolution Camera onboard the Chandra X-Ray Observatory. We found nine sources in the central 1' x 1'...
X-ray Flare from a Herbig Be star, MWC297 (1999)
Hamaguchi, K., Terada, H., Bamba, A., Koyama, K.
Hard X-ray emissions from a Herbig Be star MWC297 were discovered in three separate observations spanning 5 days in April 1994 with the Advanced Satellite for Cosmology and Astrophysics (ASCA). An...
ASCA Observations of the Sgr B2 Cloud: An X-Ray Reflection Nebula (1999)
Murakami, H., Koyama, K., Sakano, M., Tsujimoto, M., Maeda, Y.
We present the ASCA results of imaging spectroscopy of the giant molecular cloud Sgr B2. The X-ray spectrum is found to be very peculiar; it exhibits a strong emission line at 6.4 keV, a low energy...
SNRs in the Galactic Center region observed with ASCA (1999)
Sakano, M., Yokogawa, J., Murakami, H., Koyama, K., Maeda, Y.
We report the ASCA results of the supernova remnants (SNRs) and their candidates in the Galactic Center region. We found apparent X-ray emission from G359.1-0.5 and G0.9+0.1, and made marginal...
ASCA observation of the Cygnus Loop Supernova Remnant (1999)
Miyata, E., Tsunemi, H., Koyama, K., Ishisaki, Y.
We present here the results of the mapping observation of the Cygnus Loop with the Gas Imaging Spectrometer (GIS) onboard the ASCA observatory. The data covered the entire region of the Cygnus Loop....
A pilot study of CPT-11 and cisplatin for ovarian clear cell adenocarcinoma (1999)
Adachi, S, Ogasawara, T, Yamasaki, N, Shibahara, H, Kanazawa, R, Tsuji, Y, ...
ASCA Observations of GRO J1744-28 (1998)
Nishiuchi, M., Koyama, K., Maeda, Y., Asai, K., Dotani, T., Inoue, H., ...
We report the ASCA results of the bursting X-ray pulsar \gro, which was observed in February 1996 and March 1997. The source flux in the 2--10 keV band was $2.0\times10^{-8}$ erg/sec/cm$^2$ in 1996...
Thermal Expansivity and Conductivity of Pure and Silicon-Alloyed Pyrocarbons, (1998)
Measurements were made of the thermal expansivity (22 to 1000C) and the thermal conductivity (22 to 800C) of isotropic pyrocarbons deposited in fluidized beds and containing up to 34 wt % silicon in...
Discovery of the compact X-ray source inside the Cygnus Loop (1998)
Miyata, E., Tsunemi, H., Torii, K., Hashimotodani, K., Tsuru, T. G., Koyama, K., ...
We detected an X-ray compact source inside the Cygnus Loop during the observation project of the whole Cygnus Loop with the ASCA GIS. The source intensity is 0.11 c s$^{-1}$ for GIS and 0.15 c...
Quasi Non-linear Evolution of Stochastic Bias (1998)
Taruya, A., Koyama, K., Soda, J.
It is generally believed that the spatial distribution of galaxies does not trace that of the total mass. The understanding of the bias effect is therefore necessary to determine the cosmological...
The ASCA X-ray spectrum of $\eta$ Carinae (1998)
Corcoran, M F, Petre, R, Swank, J H, Drake, S A, Koyama, K, Tsuboi, Y, ...
A case of early-onset pre-eclampsia associated with IgA nephropathy (1998)
Yoshida, A, Morozumi, K, Takeda, A, Koyama, K, Ohtsuka, Y, Oikawa, T
Interpretation of the Center-Filled Emission from the Supernova Remnant W44 (1997)
Harrus, Ilana M., Hughes, John P., Singh, K. P., Koyama, K., Asaoka, I.
(Abridged) We have investigated two evolutionary scenarios advanced to explain the centrally-brightened X-ray morphology of the supernova remnant (SNR) W44: (1) a model involving the slow thermal...
A Possible Site of Cosmic Ray Acceleration in the Supernova Remnant IC 443 (1997)
Keohane, Jonathan W., Petre, R., Gotthelf, E. V., Ozaki, M., Koyama, K.
We present evidence for shock acceleration of cosmic rays to high energies (about 10 TeV) in the supernova remnant IC 443. X-ray imaging spectroscopy with ASCA reveals two regions of particularly...
X-Ray Properties of Early Type Galaxies as Observed with ASCA (1997)
Matsumoto, H., Koyama, K., Awaki, H., Tsuru, T., Loewenstein, M., Matsushita, K.
We have systematically investigated the ASCA spectra of 12 early type galaxies. This paper presents the global spectral properties of these systems based on a larger sample than in any previous ASCA...
Abnormal cyanide metabolism in uraemic patients (1997)
Koyama, K, Yoshida, A, Takeda, A, Morozumi, K, Fujinami, T, Tanaka, N
The X-ray Structure of A399 and A401: A Pre-Merging Cluster Pair (1996)
Fujita, Y., Koyama, K., Tsuru, T., Matsumoto, H.
We present {\em ASCA} results of the pair clusters A399 and A401. The region between the two clusters exhibits excess X-rays over the value expected with a simple superposition of the two clusters....
Bessho, T., Sakamoto, H., Shiotani, T., Komori, S., Koyama, K.
A retrospective comparison of cytogenetic and ultrasound findings in first trimester spontaneous fetal loss after demonstration of cardiac activity was made. The crownrump length (CRL) was measured...
DEVELOPMENT AND TEST RESULTS OF A 4MJ-CLASS PULSED SUPERCONDUCTING MAGNET (1984)
Tateishi, H., Onishi, T., Komuro, K., Koyama, K., Kawashima, M., Suzawa, C.
A pulsed superconducting magnet with a stored energy of 4 MJ has been constructed and successfully charged in dc operation. At the maximum operating current of 5500 amps, the maximum field is 6.4 T,...
Ogasawara, T., Yasukochi, K., Kubota, Y., Makiura, T., Momota, H., Sato, K., ...
The design, construction and testing of a superconducting pulse coil with high field ramp rates are described. The pulse operation has been done by a condenser discharge with a clamp circuit. The...
DEVELOPMENT AND TEST RESULTS OF A 4MJ-CLASS PULSED SUPERCONDUCTING MAGNET (1984)
Tateishi, H., Onishi, T., Komuro, K., Koyama, K., Kawashima, M., Suzawa, C.
A pulsed superconducting magnet with a stored energy of 4 MJ has been constructed and successfully charged in dc operation. At the maximum operating current of 5500 amps, the maximum field is 6.4 T,...
Ogasawara, T., Yasukochi, K., Kubota, Y., Makiura, T., Momota, H., Sato, K., ...
The design, construction and testing of a superconducting pulse coil with high field ramp rates are described. The pulse operation has been done by a condenser discharge with a clamp circuit. The...
DEVELOPMENT AND TEST RESULTS OF A 4MJ-CLASS PULSED SUPERCONDUCTING MAGNET (1984)
Tateishi, H., Onishi, T., Komuro, K., Koyama, K., Kawashima, M., Suzawa, C.
A pulsed superconducting magnet with a stored energy of 4 MJ has been constructed and successfully charged in dc operation. At the maximum operating current of 5500 amps, the maximum field is 6.4 T,...
Ogasawara, T., Yasukochi, K., Kubota, Y., Makiura, T., Momota, H., Sato, K., ...
The design, construction and testing of a superconducting pulse coil with high field ramp rates are described. The pulse operation has been done by a condenser discharge with a clamp circuit. The...
Leptin- or troglitazone-induced lipopenia protects islets from interleukin 1beta cytotoxicity.
Shimabukuro, M, Koyama, K, Lee, Y, Unger, R H
Interleukin 1beta (IL-1beta)-induced beta cell cytotoxicity has been implicated in the autoimmune cytotoxicity of insulin-dependent diabetes mellitus. These cytotoxic effects may be mediated by...
Koyama, K, Shimabukuro, M, Chen, G, Wang, M Y, Lee, Y, Kalra, P S, ...
Leptin regulates appetite and body weight via hypothalamic targets, but it can act directly on cultured pancreatic islets to regulate their fat metabolism. To obtain in vivo evidence that leptin may...
Leptin- or troglitazone-induced lipopenia protects islets from interleukin 1beta cytotoxicity.
Shimabukuro, M, Koyama, K, Lee, Y, Unger, R H
Interleukin 1beta (IL-1beta)-induced beta cell cytotoxicity has been implicated in the autoimmune cytotoxicity of insulin-dependent diabetes mellitus. These cytotoxic effects may be mediated by...
Koyama, K, Shimabukuro, M, Chen, G, Wang, M Y, Lee, Y, Kalra, P S, ...
Leptin regulates appetite and body weight via hypothalamic targets, but it can act directly on cultured pancreatic islets to regulate their fat metabolism. To obtain in vivo evidence that leptin may...
Koyama, K., Nakamuro, K., Tanigaki, N., Pressman, D.
Membrane glycoproteins that appear to belong to a new alloantigen system were partially purified by gel filtration and lentil-lectin affinity chromatography from a non-ionic detergent (Renex 30)...
A human-mouse hybridoma producing monoclonal antibody against human sperm coating antigen.
Kyurkchiev, S D, Shigeta, M, Koyama, K, Isojima, S
Since anti-sperm antibodies were first discovered in the sera of women, the relationship of these antibodies to sterility has been studied by many investigators. In order to determine the antigens of...
Human Ia-like antigens in non-lymphoid organs.
Koyama, K, Fukunishi, T, Barcos, M, Tanigaki, N, Pressman, D
Human Ia-like antigens in liver and kidney were shown by the immunofluorescence assay to be present mostly in the endothelial-mesenchymal cells of these organs. The parenchymal cells apparently...
Purification and separation of subsets of human Ia molecules by papain digestion.
Tanigaki, N, Tosi, R, Koyama, K, Pressman, D
Papain digestion of human Ia(-like) molecules was performed under various conditions using 125I-labelled preparation of non-ionic-detergent-solubilized Ia antigens of Daudi cells. The products were...
Isojima, S, Koyama, K, Fujiwara, N
Human seminal plasma (HSP) No. 7 antigen was purified by immunoaffinity chromatography on bound 1C4 monoclonal antibody (Moab) (Shigeta et al., 1980b). The pooled HSP protein was applied to a...
Sperm-immobilizing monoclonal antibody to human seminal plasma antigens.
Shigeta, M, Watanabe, T, Maruyama, S, Koyama, K, Isojima, S
Rat spleen cells immunized to human azoospermic semen (a mixture of seminal plasma components) and mouse myeloma cells (P3/X63 Ag8U1; P3U1) (Marguilies et al., 1976) were successfully fused with...
KOMORI, S, KAMEDA, K, SAKATA, K, HASEGAWA, A, TOJI, H, TSUJI, Y, ...
A mouse hybridoma (1G12) producing sperm-immobilizing MoAb to human sperm was established and characterized in order to study the antigens relevant to sperm immobilization by antibodies. MoAb 1G12...
Sato, T, Deiwick, A, Raddatz, G, Koyama, K, Schlitt, H J
With organ allografts considerable numbers of donor-type mononuclear cells are transferred to the recipient, leading to bilateral immunological interactions between donor and recipient lymphocytes....
Neurogenic bladder in Hunter's syndrome.
Koyama, K, Moda, Y, Sone, A, Tanaka, H, Hino, Y
We encountered a rare patient with Hunter's syndrome who exhibited urinary retention as a result of a neurogenic bladder, uninhibited detrusor contractions, and detrusor-sphincter dyssynergia....
Kubota, K, Katoh, H, Muguruma, K, Koyama, K
A newly generated monoclonal antibody (mAb C9.1) described in this study identifies a surface membrane molecule that is involved in the lytic programme of activated natural killer (NK) cells. This...