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...
Discovery of a Giant Lyα Emitter Near the Reionization Epoch. (2009)
Ouchi, M., Ono, Y., Egami, E., Saito, T., Oguri, M., McCarthy, P.J., ...
Original article can be found at: http://www.iop.org/EJ/journal/ap Copyright American Astronomical Society. DOI: 10.1088/0004-637X/696/2/1164 [Full text of this article is not available in the UHRA]
An extreme EXO: a type 2 QSO at z=1.87 (2008)
Del Moro, A., Watson, M. G., Mateos, S., Akiyama, M., Hashimoto, Y., Tamura, N., ...
We aim to understand the multi-wavelength properties of 2XMM J123204+215255, the source with the most extreme X-ray-to-optical flux ratio amongst a sample of bright X-ray selected EXOs drawn from a...
Evolution of Star-forming Galaxies seen from Lyman Break Galaxies at $z\sim5$ (2008)
Ohta, K., Yabe, K., Iwata, I., Sawicki, M., Akiyama, M., Tamura, N., ...
Properties of Lyman Break Galaxies at $z\sim5$ are presented and are compared with those at $z\sim 2-3$ LBGs to see evolution of LBGs from $z\sim5$ to $z \sim3-2$. The LBGs at $z\sim5$ are tend to...
Lenz, F., Ohta, K., Yazaki, K.
The canonical quantization in Weyl gauge of gauge fields in static space-times is presented. With an appropriate definition of transverse and longitudinal components of gauge fields, the Gauss law...
Hayakawa, M., Horie, T., Yoshida, M., Kasahara, Y., Muto, F., Ohta, K., ...
In order to investigate any precursory effect of ionospheric perturbations associated with the large 2007 Niigata Chuetsu-oki earthquake (16 July 2007) (magnitude, 6.8), we have made full use of our...
Hayakawa, M., Horie, T., Yoshida, M., Kasahara, Y., Muto, F., Ohta, K., ...
In order to investigate any precursory effect of ionospheric perturbations associated with the large 2007 Niigata Chuetsu-oki earthquake (16 July 2007) (magnitude, 6.8), we have made full use of our...
M. Hayakawa, T. Horie, M. Yoshida, Y. Kasahara, F. Muto, K. Ohta, ...
In order to investigate any precursory effect of ionospheric perturbations associated with the large 2007 Niigata Chuetsu-oki earthquake (16 July 2007) (magnitude, 6.8), we have made full use of our...
Y. Kasahara, F. Muto, T. Horie, M. Yoshida, M. Hayakawa, K. Ohta, ...
Relatively long-period (4 years) data on different propagation paths by means of Japanese-Pacific VLF/LF network observation, are used to obtain further statistical significance on the correlation of...
Global strategy for asthma management and prevention: GINA executive summary (2008)
Bateman, E. D., Hurd, S. S., Pizzichini, E., Sullivan, S. D., Wenzel, S. E., Zar, H. J., ...
Asthma is a serious health problem throughout the world. During the past two decades, many scientific advances have improved our understanding of asthma and ability to manage and control it...
Bousquet, J., Khaltaev, N., Cruz, A. A., Denburg, J., Fokkens, W. J., Togias, A., ...
Allergic rhinitis is a symptomatic disorder of the nose induced after allergen exposure by an IgE-mediated inflammation of the membranes lining the nose. It is a global health problem that causes...
First Detection of 12CO (1--0) Emission from Two Narrow-Line Seyfert 1 Galaxies (2007)
Kawaguchi, T., Nakanishi, K., Kohno, K., Ohta, K., Aoki, K.
In order to investigate how the growth of galactic bulges progresses with the growth of central black holes (BHs), we observed molecular gas (fuel for the coming star formation) in possibly young...
Sensitive Radio Observations Of High Redshift Dusty Qsos (2007)
Yun Carilli Kawabe, M. S. Yun, C. L. Carilli, R. Kawabe, Y. Tutui, K. Kohno, ...
We present sensitive radio continuum imaging at 1.4 GHz and 4.9 GHz of seven high redshift QSOs selected for having a 240 GHz continuum detection, which is thought to be thermal dust emission. We...
Akiyama, M., Minowa, Y., Kobayashi, N., Ohta, K., Iwata, I.
In order to reveal the stellar mass distribution of z~3 galaxies, we are conducting deep imaging observations of U-dropout Lyman Break Galaxies (LBGs) with Adaptive Optics (AO) systems in K-band,...
Akiyama, M., Minowa, Y., Kobayashi, N., Ohta, K., Ando, M., Iwata, I.
In order to reveal the rest-frame V-band morphology of galaxies at z~3, we conducted AO-assisted K-band imaging observations of z~3 LBGs with Mv*-0.5 to Mv*+3.0 mag. LBGs brighter than Mv* have...
High-Resolution Submillimeter Imaging of the Ly-alpha Blob1 in SSA 22 (2007)
Matsuda, Y., Iono, D., Ohta, K., Yamada, T., Kawabe, R., Hayashino, T., ...
We present ~2" resolution submillimeter observations of the submillimeter luminous giant Ly-alpha blob (LAB1) in the SSA 22 protocluster at redshift z=3.1 with the Submillimeter Array (SMA). Although...
Ichihara, M, Suzuki, A, Hatsusaka, K, Ohta, K
This is a preprint of an article whose final and definitive form has been published in the LIQUID CRYSTALS © 2007 copyright Taylor & Francis; LIQUID CRYSTALS is available online at:...
Abe, Y, Nakazima, N, Tanase, T, Katano, S, Mukai, H, Ohta, K
This is a preprint of an article whose final and definitive form has been published in the MOLECULAR CRYSTALS AND LIQUID CRYSTALS © 2007 copyright Taylor & Francis; MOLECULAR CRYSTALS AND LIQUID...
Ichihara, M, Suzuki, A, Hatsusaka, K, Ohta, K
This is an electronic version of an article published in Liquid Crystals 34(5): 555-567 (2007). Liquid Crystals is available online at informaworldTM with...
MITSuME--Multicolor Imaging Telescopes for Survey and Monstrous Explosions (2007)
Kotani, T., Kawai, N., Yanagisawa, K., Watanabe, J., Arimoto, M., Fukushima, H., ...
Development of MITSuME is reported. Two 50-cm optical telescopes have been built at Akeno in Yamanashi prefecture and at Okayama Astrophysical Observatory (OAO) in Okayama prefecture. Three CCD...
Differential Evolution of the UV Luminosity Function of Lyman Break Galaxies from z~5 to 3 (2007)
Iwata, I., Ohta, K., Tamura, N., Akiyama, M., Aoki, K., Ando, M., ...
(abridged) We report the UV luminosity function (LF) of Lyman break galaxies at z~5 derived from a deep and wide survey using the Subaru/Suprime-Cam. Target fields consist of two blank regions of the...
The Cosmic Evolution Survey (COSMOS): Subaru observations of the HST cosmos field (2007)
Taniguchi, Y., Scoville, N., Murayama, T., Sanders, D. B., Mobasher, B., Aussel, H., ...
The Cosmic Evolution Survey (COSMOS): Subaru observations of the HST cosmos field (2007)
Taniguchi, Y., Scoville, N., Murayama, T., Sanders, D. B., Mobasher, B., Aussel, H., ...
We present deep optical imaging observations of 2 square degree area, covered by the Cosmic Evolution Survey (COSMOS), made by the prime-focus camera (Supreme-Cam) on the 8.2 m Subaru Telescope....
A potential galaxy threshing system in the COSMOS field (2007)
Sasaki, S. S., Taniguchi, Y., Scoville, N., Mobasher, B., Aussel, H., Sanders, D. B., ...
We report on the discovery of a new potential galaxy threshing system in the COSMOS 2 square degree field using the prime-focus camera, Suprime-Cam, on the 8.2 m Subaru Telescope. This system...
Ichihara, M, Suzuki, H, Mohr, B, Ohta, K
This is an electronic version of an article published in Liquid Crystals. 34(3): 401-410 (2007). "Liquid Crystals" is available online at:...
A Potential Galaxy Threshing System in the Cosmos Field (2006)
Sasaki, S. S., Taniguchi, Y., Scoville, N., Mobasher, B., Aussel, H., Sanders, D. B., ...
We report on the discovery of a new potential galaxy threshing system in the COSMOS 2 square degree field using the prime-focus camera, Suprime-Cam, on the 8.2 m Subaru Telescope. This system...
Balmer Absorption Lines in FeLoBALs (2006)
Aoki, K., Iwata, I., Ohta, K., Tamura, N., Ando, M., Akiyama, M., ...
We discovered non-stellar Balmer absorption lines in two many-narrow-trough FeLoBALs (mntBALs) by the near-infrared spectroscopy with Subaru/CISCO. Presence of the non-stellar Balmer absorption lines...
Search for the host galaxy of GRB 050904 at z=6.3 (2006)
Aoki, K., Furusawa, H., Ohta, K., Yamada, T., Kawai, N.
We present the results of deep imaging of the field of GRB 050904 with Suprime-Cam on the Subaru 8.2m telescope. We have obtained a narrow-band (130 A) image centered at 9200 A (NB921) and an i'-band...
The Cosmic Evolution Survey (COSMOS): Subaru Observations of the HST COSMOS Field (2006)
Taniguchi, Y., Scoville, N., Murayama, T., Sanders, D. B., Mobasher, B., Aussel, H., ...
We present deep optical imaging observations of 2 square degree area, covered by the Cosmic Evolution Survey (COSMOS), made by the prime-focus Camera (Supreme-Cam) on the 8.2m Subaru Telescope....
Luminosity Dependent Evolution of Lyman Break Galaxies from redshift 5 to 3 (2006)
Iwata, I., Ohta, K., Tamura, N., Akiyama, M., Aoki, K., Ando, M., ...
In this contribution we briefly describe our recent results on the properties of Lyman break galaxies at z~5 obtained from deep and wide blank field surveys using Subaru telescope, and through the...
Kashikawa, N., Shimasaku, K., Malkan, M. A., Doi, M., Matsuda, Y., Ouchi, M., ...
We report an extensive search for Lyman-alpha emitters (LAEs) at z=6.5 in the Subaru Deep Field. Subsequent spectroscopy with Subaru and Keck identified eight more LAEs, giving a total of 17...
Ly Alpha Emitters at z=5.7 in the Subaru Deep Field (2006)
Shimasaku, K., Kashikawa, N., Doi, M., Ly, C., Malkan, M. A., Matsuda, Y., ...
We present the properties of Ly Alpha emitters (LAEs) at z = 5.7 in the Subaru Deep Field. A photometric sample of 89 LAE candidates is constructed from narrow-band (NB816) data down to NB816 = 26.0...
Bousquet, J., Cauwenberge, P. Van, Aït Khaled, N., Bachert, C., Baena-Cagnani, C.E., Bouchard, J., ...
Nickolaenko, A. P., Hayakawa, M., Sekiguchi, M., Ando, Y., Ohta, K.
This paper is a further extension of our latest observations and modeling by Hayakawa et al. (2005a), in which we discovered the anomalous behavior of Schumann resonance observed in Japan, in...
Nickolaenko, A. P., Hayakawa, M., Sekiguchi, M., Ando, Y., Ohta, K.
This paper is a further extension of our latest observations and modeling by Hayakawa et al. (2005a), in which we discovered the anomalous behavior of Schumann resonance observed in Japan, in...
Afterglow spectrum of a gamma-ray burst with the highest known redshift z=6.295 (2005)
Kawai, N., Kosugi, G., Aoki, K., Yamada, T., Totani, T., Ohta, K., ...
Gamma-ray bursts (GRBs) and their afterglows have been proposed as an excellent probe to study the evolution of cosmic star formation, the reionization of the intergalactic medium, and the metal...
Evolution of Lyman Break Galaxies From z=5 to 3 (2005)
Iwata, I., Ohta, K., Ando, M., Kiuchi, G., Tamura, N., Akiyama, M., ...
We report the updated UV luminosity function (LF) of Lyman break galaxies (LBGs) at z~5. Combining with lower redshift data, we found that the evolution of UV LF is differential depending on the UV...
Deep Spectroscopic Survey of Lyman Break Galaxies at z~5 (2005)
Ando, M., Ohta, K., Iwata, I., Akiyama, M., Aoki, K., Tamura, N.
We report results of deep optical spectroscopy with Subaru/FOCAS for Lyman Break Galaxy (LBG) candidates at z~5. So far, we made spectroscopic observations for 24 LBG candidates among ~200 bright...
Large-scale Filamentary Structure around the Protocluster at Redshift z=3.1 (2005)
Matsuda, Y., Yamada, T., Hayashino, T., Tamura, H., Yamauchi, R., Murayama, T., ...
We report the discovery of a large-scale coherent filamentary structure of Lyman alpha emitters in a redshift space at z=3.1. We carried out spectroscopic observations to map the three dimensional...
Kong, X., Daddi, E., Arimoto, N., Renzini, A., Broadhurst, T., Cimatti, A., ...
We have combined deep BRIz' imaging over 2x940 arcmin^2 fields obtained with the Suprime-Cam on the Subaru telescope with JKs imaging with the SOFI camera at the New Technology Telescope to search...
A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1 (2005)
Geach, J. E., Matsuda, Y., Smail, Ian, Chapman, S. C., Yamada, T., Ivison, R. J., ...
We present the results from a submm survey of a sample of 23 giant Lya emitting nebulae in the overdensity at z=3.09 in the SA22 field. These objects, which have become known as Lya Blobs (LABs) have...
Spectroscopy of i-Dropout Galaxies with an NB921-Band Depression in the Subaru Deep Field (2005)
Nagao, T., Kashikawa, N., Malkan, M. A., Murayama, T., Taniguchi, Y., Shimasaku, K., ...
We report new spectroscopy of two star-forming galaxies with strong Ly_alpha emission at z=6.03 and z=6.04 in the Subaru Deep Field. These two objects are originally selected as i'-dropouts (i'-z' >...
The Growth of the Local Void and the Origin of the Local Velocity Anomaly (2005)
Iwata, I., Ohta, K., Nakanishi, K., Chamaraux, P., Roman, A. T.
The Local Void is the nearest void from us and is thought to be playing an important role in the kinematics of the local universe, especially as one of the suspected source of the motion of the Local...
Hayakawa, M., Ohta, K., Nickolaenko, A. P., Ando, Y.
The Schumann resonance phenomenon has been monitored at Nakatsugawa (near Nagoya) in Japan since the beginning of 1999, and due to the occurance of a severe earthquake (so-called Chi-chi earthquake)...
Hayakawa, M., Ohta, K., Nickolaenko, A. P., Ando, Y.
The Schumann resonance phenomenon has been monitored at Nakatsugawa (near Nagoya) in Japan since the beginning of 1999, and due to the occurance of a severe earthquake (so-called Chi-chi earthquake)...
Kohno, K., Tosaki, T., Okuda, T., Nakanishi, K., Kamazaki, T., Muraoka, K., ...
Nobeyama Millimeter Array was used to observe millimeter-wave afterglow of GRB 030329 at 93 GHz and 141 GHz from 2003 April 6 to 2003 May 30. A sensitive search for CO(J=1-0) emission/absorption from...
The Subaru Deep Field: The Optical Imaging Data (2004)
Kashikawa, N., Shimasaku, K., Yasuda, N., Ajiki, M., Akiyama, M., Ando, H., ...
The Subaru Deep Field (SDF) project is a program of Subaru Observatory to carry out a deep galaxy survey over a blank field as large as 34'x27'. The program consists of very deep multi-band optical...
Dynamic aspect of the chiral phase transition in the mode coupling theory (2004)
Ohnishi, K., Fukushima, K., Ohta, K.
We analyze the dynamic aspect of the chiral phase transition. We apply the mode coupling theory to the linear sigma model and derive the kinetic equation for the chiral phase transition. We challenge...
Ohta, K., Lupo, G., Kuriyama, S., Keynes, R., Holt, C.E., Harris, W.A., ...
During chick gastrulation, inhibition of BMP signaling is required for primitive streak formation and induction of Hensen's node. We have identified a unique secreted protein, Tsukushi (TSK), which...
A Strong Lyman-alpha Emitter at z=6.33 in the Subaru Deep Field Selected as an i' Dropout (2004)
Nagao, T., Taniguchi, Y., Kashikawa, N., Kodaira, K., Kaifu, N., Ando, H., ...
We report on the discovery of a star-forming galaxy at z=6.33 in the Subaru Deep Field. This object is selected as a candidate of an i'-dropout, high-redshift galaxy around z=6 because of its red...
A Subaru Search for Ly-alpha Blobs in and around the Proto-cluster Region at Redshift z=3.1 (2004)
Matsuda, Y., Yamada, T., Hayashino, T., Tamura, H., Yamauchi, R., Ajiki, M., ...
We report the properties of the 35 robust candidates of Ly-alpha blobs (LABs), which are larger than 16 arcsec^2 in isophotal area and brighter than 0.7 x 10^-16 ergs s^-1 cm^-2, searched in and...
Growth of massive black holes by super-Eddington accretion (2004)
Kawaguchi, T., Aoki, K., Ohta, K., Collin, S.
Narrow-Line Seyfert 1 galaxies (NLS1s) and Narrow-Line quasars (NLQs) seem to amount to ~ 10-30 % of active galactic nuclei (AGNs) in the local universe. Together with their average accretion rate,...
Chiral Symmetry in Light-Cone Field Theory (2004)
Lenz, F., Ohta, K., Thies, M., Yazaki, K.
An analysis of spontaneously broken chiral symmetry in light-cone field theory is presented. The non-locality inherent to light-cone field theory requires revision of the standard procedure in the...
Large Cosmic Variance in the Clustering Properties of Lyman Alpha Emitters at z~5 (2004)
Shimasaku, K., Hayashino, T., Matsuda, Y., Ouchi, M., Ohta, K., Okamura, S., ...
We reported in a previous paper the discovery of large-scale structure of Lyman Alpha emitters (LAEs) at z=4.86+-0.03 with a projected size of 20 Mpc x 50 Mpc in narrow-band data of a 25' x 45' area...
Gibson, C.L., La Rosa, S., Ohta, K., Boyle, P.H., Leurquin, F., Lemaçon, A., ...
Variously substituted 7-deazaguanines are of interest as inhibitors of GTP cyclohydrolase I, the first enzyme in the biosynthetic pathway leading to dihydrofolate and tetrahydrobiopterin. Methods are...
Gibson, C.L., La Rosa, S., Ohta, K., Boyle, P.H., Leurquin, F., Lemaçon, A., ...
Variously substituted 7-deazaguanines are of interest as inhibitors of GTP cyclohydrolase I, the first enzyme in the biosynthetic pathway leading to dihydrofolate and tetrahydrobiopterin. Methods are...
Gibson, C.L., La Rosa, S., Ohta, K., Boyle, P.H., Leurquin, F., Lemaçon, A., ...
Variously substituted 7-deazaguanines are of interest as inhibitors of GTP cyclohydrolase I, the first enzyme in the biosynthetic pathway leading to dihydrofolate and tetrahydrobiopterin. Methods are...
P. F. Biagi, R. Piccolo, L. Castellana, T. Maggipinto, A. Ermini, S. Martellucci, ...
At the beginning of 2002 an OmniPAL receiver was put into operation at the Department of Physics of Bari University (Southern Italy). The electric field strength of five VLF-LF signals transmitted...
Biagi, P. F., Piccolo, R., Castellana, L., Maggipinto, T., Ermini, A., Martellucci, S., ...
At the beginning of 2002 an OmniPAL receiver was put into operation at the Department of Physics of Bari University (Southern Italy). The electric field strength of five VLF-LF signals transmitted...
Biagi, P. F., Piccolo, R., Castellana, L., Maggipinto, T., Ermini, A., Martellucci, S., ...
At the beginning of 2002 an OmniPAL receiver was put into operation at the Department of Physics of Bari University (Southern Italy). The electric field strength of five VLF-LF signals transmitted...
Subaru Deep Survey. IV. Discovery of a Large-Scale Structure at Redshift \simeq 5 (2003)
Shimasaku, K., Ouchi, M., Okamura, S., Kashikawa, N., Doi, M., Furusawa, H., ...
We report the discovery of a large-scale structure of Lyman alpha emitters (LAEs) at z=4.86 based on wide-field imaging with the prime-focus camera (Suprime-Cam) on the Subaru telescope. We observed...
Lyman Break Galaxies at z~5: Luminosity Function (2003)
Iwata, I., Ohta, K., Tamura, N., Ando, M., Wada, S., Watanabe, C., ...
(abridged) We present results of a search for Lyman break galaxies (LBGs) at z ~ 5 in a 618 square-arcmin field including the HDF-N taken by Subaru Prime Focus Camera. Utilizing the published...
Data, data structures and models Elektronische Daten (2002)
Simma, A., Dubouloz, D., Schäfer, A., Ohta, K.
Weitere Autoren: A. Schäfer, K. Ohta
High-resolution imaging of molecular line emission from high- redshift QSOs (2002)
Carilli, C. L., Kohno, K., Kawabe, R., Ohta, K., Henkel, C., Menten, K. M., ...
We present moderate-(1") and high-resolution (0."2) observations of the CO (2-1) emission at 43 GHz and radio continuum emission at 1.47 GHz from the z = 4.7 QSO BRI 1202- 0725 and the z = 4.4 QSO...
Endo, H., Yoshida, H., Ohmi, N., Ohta, K., Higuchi, S., Suga, T.
After oral and intravenous administration of [14C]clarithromycin to rats, c. 60–70% of the radioactivity in the gastric tissue was found to be distributed in the mucosal layer....
High resolution imaging of molecular line emission from high redshift QSOs (2001)
Carilli, C. L., Kohno, K., Kawabe, R., Ohta, K., Henkel, C., Menten, K., ...
We present moderate (1'') and high resolution (0.2'') observations of the CO(2-1) emission at 43 GHz, and radio continuum emission at 1.47 GHz, from the z=4.7 QSO BRI 1202-0725 and the z=4.4 QSO BRI...
CO(J=6-5) Observations of the Quasar SDSS1044-0125 at z = 5.8 (2001)
Iwata, I., Ohta, K., Nakanishi, K., Kohno, K., McMahon, R. G.
We present a result of the quasar CO(J=6-5) observations of SDSSp J104433.04-012502.2 at z = 5.8. Ten-days observations with the Nobeyama Millimeter Array yielded an rms noise level of ~ 2.1 mJy/beam...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Miyanaga, A, Hu, W, ...
A new method for the simultaneous determination of anions (sulfate, nitrate, and chloride) and cations (sodium, ammonium, potassium, magnesium, and calcium) in acid rain waters was investigated using...
Ohta, K, Tanaka, K, Haddad, PR
The modification of silica gel with aluminium and zirconium can be used for the preparation of advanced silica-based cation-exchange stationary phases for use in ion chromatography with...
Fukushima, K., Ohnishi, K., Ohta, K.
We estimate the slope of the topological susceptibility in the three flavour Nambu-Jona-Lasinio model with the 't Hooft interaction. The results are consistent with the evaluation from the QCD sum...
Topological susceptibility at zero and finite temperature in the Nambu-Jona-Lasinio model (2001)
Ohnishi, K., Fukushima, K., Ohta, K.
We consider the three flavor Nambu-Jona-Lasinio model with the 't Hooft interaction incorporating the U(1)_A anomaly. In order to set the coupling strength of the 't Hooft term, we employ the...
K. Ohta, K. Umeda, N. Watanabe, M. Hayakawa
ULF/ELF emission observation has been performed at Nakatsugawa observatory (geographic coordinates; 35.4° N, 137.5° E, Gifu prefecture) since January 1999. The equipment consists of...
Ohta, K., Umeda, K., Watanabe, N., Hayakawa, M.
ULF/ELF emission observation has been performed at Nakatsugawa observatory (geographic coordinates; 35.4° N, 137.5° E, Gifu prefecture) since January 1999. The equipment consists of...
Ohta, K., Umeda, K., Watanabe, N., Hayakawa, M.
ULF/ELF emission observation has been performed at Nakatsugawa observatory (geographic coordinates; 35.4° N, 137.5° E, Gifu prefecture) since January 1999. The equipment consists of...
Ohta, K, Tanaka, K, Haddad, PR
The modification of silica gel with aluminium and zirconium can be used for the preparation of advanced silica-based cation-exchange stationary phases for use in ion chromatography with...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Miyanaga, A, Hu, W, ...
A new method for the simultaneous determination of anions (sulfate, nitrate, and chloride) and cations (sodium, ammonium, potassium, magnesium, and calcium) in acid rain waters was investigated using...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, J, Miyanaga, A, Hu, W, ...
Ohta, K, Tanaka, K, Haddad, PR
The modification of silica gel with aluminium and zirconium can be used for the preparation of advanced silica-based cation-exchange stationary phases for use in ion chromatography with...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Miyanaga, A, Hu, W, ...
A new method for the simultaneous determination of anions (sulfate, nitrate, and chloride) and cations (sodium, ammonium, potassium, magnesium, and calcium) in acid rain waters was investigated using...
Endo, H., Yoshida, H., Ohmi, N., Ohta, K., Higuchi, S.
The gastric mucosal distribution of [14C]amoxicillin when administered to rats with or without lansoprazole and clarithromycin was investigated. After oral administration, the amount found in the...
Deep-Imaging Observations of a Candidate of an Absorbed QSO at z=0.653, AX J131831+3341 (2000)
Akiyama, M., Ohta, K., Tamura, N., Doi, M., Kimura, M., Komiyama, Y., ...
The results of deep-imaging observations of a candidate of an absorbed QSO at z=0.653, AX J131831+3341, are presented. AX J131831+3341 was found during the course of optical follow-up observations of...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Miyanaga, A, Hu, W, ...
A simple, selective, and sensitive method for the simultaneous determination of anions (sulfate, nitrate, and chloride) and cations (sodium, ammonium, potassium, magnesium, and calcium) in acid rain...
[OII]3727 Emission from the Companion to the Quasar BR 1202-0725 at z=4.7 (2000)
Ohta, K., Matsumoto, T., Maihara, T., Iwamuro, F., Terada, H., Goto, M., ...
Results of a narrow-band imaging for the redshifted [OII]3727 emission around a quasar at z=4.7 obtained with the Subaru telescope and CISCO (a Cassegrain near infrared camera) are presented. A...
Saito, A., Kioi, K., Akagi, Y., Hashizume, N., Ohta, K.
We found that the actual computational time-cost of the QFT is O(n 2^n) for large n in a quantum computer using nuclear spins. The computational cost of a quantum algorithm has usually been estimated...
Optical Identification of the ASCA Large Sky Survey (2000)
Akiyama, M., Ohta, K., Yamada, T., Kashikawa, N., Yagi, M., Kawasaki, W., ...
We present results of optical identification of the X-ray sources detected in the ASCA Large Sky Survey. Optical spectroscopic observations were done for 34 X-ray sources which were detected with the...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Miyanaga, A, Hu, W, ...
A simple, selective, and sensitive method for the simultaneous determination of anions (sulfate, nitrate, and chloride) and cations (sodium, ammonium, potassium, magnesium, and calcium) in acid rain...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, J, Miyanaga, A, Hu, W, ...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, J, Sarzanini, C, Miyanaga, A, ...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Miyanaga, A, Hu, W, ...
A simple, selective, and sensitive method for the simultaneous determination of anions (sulfate, nitrate, and chloride) and cations (sodium, ammonium, potassium, magnesium, and calcium) in acid rain...
Sensitive Radio Observations of High Redshift Dusty QSOs (1999)
Yun, M. S., Carilli, C. L., Kawabe, R., Tutui, Y., Kohno, K., Ohta, K.
We present sensitive radio continuum imaging at 1.4 GHz and 4.9 GHz of seven high redshift QSOs selected for having a 240 GHz continuum detection, which is thought to be thermal dust emission. We...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Lee, KP, Hasebe, K, ...
A monitoring system consisting of a portable-type conductimetric ion-exclusion–cation-exchange chromatographic (CEC) analyzer and a meteorological satellite data analyzer has been investigated for...
Ueda, Y., Takahashi, T., Inoue, H., Tsuru, T., Sakano, M., Ishisaki, Y., ...
We carried out the first wide-area unbiased survey with the ASCA satellite in the 0.7-10 keV band around a north Galactic-pole region covering a continuous area of 7 square degrees (Large Sky Survey;...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Lee, KP, Hasebe, K, ...
A monitoring system consisting of a portable-type conductimetric ion-exclusion–cation-exchange chromatographic (CEC) analyzer and a meteorological satellite data analyzer has been investigated for...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS, Lee, KP, Hasebe, K, ...
A monitoring system consisting of a portable-type conductimetric ion-exclusion–cation-exchange chromatographic (CEC) analyzer and a meteorological satellite data analyzer has been investigated for...
Optical Number Count Estimation of IRIS Far-Infrared Survey of Galaxies (1998)
Hirashita, H., Takeuchi, T. T., Ohta, K., Shibai, H.
Infrared Imaging Surveyor (IRIS) is a satellite which will be launched at the beginning of 2003. One of the main purposes of the IRIS mission is an all-sky survey in the far-infrared region with a...
Nature of Hard X-ray Source from Optical Identification of the ASCA Large Sky Survey (1998)
Akiyama, M., Ohta, K., Yamada, T., Ueda, Y., Takahashi, T., Sakano, M., ...
We present results of optical identification of the ASCA Large Sky Survey. X-ray sources which have hard X-ray spectra were identified with type-2 AGN at redshifts smaller than 0.5. It is supported...
INFRARED ABSORPTION OF GOLD IN SILICON SINGLE CRYSTALS. (1998)
Author is with Institute for Optical Research, Kyoiku Univ., Tokyo, Japan.
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...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS
Ion-exchange chromatography with indirect conductimetric detection for the simultaneous determination of mono- and divalent cations is investigated using an anion-exclusion chromatographic column...
Non-suppressed ion chromatography of cations on silica gel modified with aluminium (1998)
Ohta, K, Morikawa, H, Tanaka, K, Haddad, PR
The presence of aluminium in the silica matrix causes an enhancement of the acidity of the silanol group on silica gel. Therefore, in order to prepare silica-based cation-exchangers for ion...
Ohta, K, Morikawa, H, Tanaka, K, Uryu, Y, Paull, B, Haddad, PR
Ion chromatographic behavior of alkali metal cations and ammonium ion on various unmodified silica gel columns by elution with 2 mM nitric acid (pH 2.7) was investigated. As a result it was found...
Optical Identification of the Hardest X-ray Source in the ASCA Large Sky Survey (1998)
Akiyama, M., Ohta, K., Yamada, T., Eracleous, M., Halpern, J. P., Kashikawa, N., ...
We report the optical identification of the hardest X-ray source (AX J131501+3141) detected in an unbiased wide-area survey in the 0.5--10 keV band, the ASCA Large Sky Survey. The X-ray spectrum of...
Ohta, K, Morikawa, H, Tanaka, K, Uryu, Y, Paull, B, Haddad, PR
Ion chromatographic behavior of alkali metal cations and ammonium ion on various unmodified silica gel columns by elution with 2 mM nitric acid (pH 2.7) was investigated. As a result it was found...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS
Ion-exchange chromatography with indirect conductimetric detection for the simultaneous determination of mono- and divalent cations is investigated using an anion-exclusion chromatographic column...
Non-suppressed ion chromatography of cations on silica gel modified with aluminium (1998)
Ohta, K, Morikawa, H, Tanaka, K, Haddad, PR
The presence of aluminium in the silica matrix causes an enhancement of the acidity of the silanol group on silica gel. Therefore, in order to prepare silica-based cation-exchangers for ion...
Ohta, K, Morikawa, H, Tanaka, K, Uryu, Y, Paull, B, Haddad, PR
Ion chromatographic behavior of alkali metal cations and ammonium ion on various unmodified silica gel columns by elution with 2 mM nitric acid (pH 2.7) was investigated. As a result it was found...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS
Ion-exchange chromatography with indirect conductimetric detection for the simultaneous determination of mono- and divalent cations is investigated using an anion-exclusion chromatographic column...
Non-suppressed ion chromatography of cations on silica gel modified with aluminium (1998)
Ohta, K, Morikawa, H, Tanaka, K, Haddad, PR
The presence of aluminium in the silica matrix causes an enhancement of the acidity of the silanol group on silica gel. Therefore, in order to prepare silica-based cation-exchangers for ion...
Ohta, K, Morikawa, H, Tanaka, K, Uryu, Y, Paull, B, Haddad, PR
Ion chromatographic behavior of alkali metal cations and ammonium ion on various unmodified silica gel columns by elution with 2 mM nitric acid (pH 2.7) was investigated. As a result it was found...
Tanaka, K, Ohta, K, Haddad, PR, Fritz, JS
Ion-exchange chromatography with indirect conductimetric detection for the simultaneous determination of mono- and divalent cations is investigated using an anion-exclusion chromatographic column...
Non-suppressed ion chromatography of cations on silica gel modified with aluminium (1998)
Ohta, K, Morikawa, H, Tanaka, K, Haddad, PR
The presence of aluminium in the silica matrix causes an enhancement of the acidity of the silanol group on silica gel. Therefore, in order to prepare silica-based cation-exchangers for ion...
H-Alpha Velocity Fields of H II Regions in Nearby Dwarf Irregular Galaxies (1997)
Tomita, A., Ohta, K., Nakanishi, K., Takeuchi, T. T., Saito, M.
We present H-alpha velocity fields of thirteen giant H II regions in four nearby dwarf irregular galaxies, NGC 2366, Holmberg II, IC 2574, and WLM. We classify the velocity features as well as the...
Ion-exclusion chromatography of benzenecarboxylic acids on an unmodified silica-gel column (1997)
Ohta, K, Tanaka, K, Haddad, PR
In order to demonstrate the effectiveness of two unmodified silica-gel (Develosil 30-5) columns (300×7.8 mm I.D.) used in series for the ion-exclusion chromatographic separation of mono-, di, tri-...
Clustering of red Galaxies near the Radio-loud Quasar 1335.8+2834 at z=1.1 (1997)
Yamada, T., Tanaka, I., Aragón-Salamanca, A., Kodama, T., Ohta, K., Arimoto, N.
We have obtained new deep optical and near-infrared images of the field of the radio-loud quasar 1335.8+2834 at $z=1.086$ where an excess in the surface number density of galaxies was reported by...
Ohta, K, Tanaka, K, Paull, B, Haddad, PR
An unmodified silica gel (Develosil 30-5) column (150×4.6 mm I.D.) has been applied to the ion chromatographic separation of alkali, alkaline earth and transition metal cations. The retention...
Ion-exclusion chromatography of benzenecarboxylic acids on an unmodified silica-gel column (1997)
Ohta, K, Tanaka, K, Haddad, PR
In order to demonstrate the effectiveness of two unmodified silica-gel (Develosil 30-5) columns (300×7.8 mm I.D.) used in series for the ion-exclusion chromatographic separation of mono-, di, tri-...
Ohta, K, Tanaka, K, Paull, B, Haddad, PR
An unmodified silica gel (Develosil 30-5) column (150×4.6 mm I.D.) has been applied to the ion chromatographic separation of alkali, alkaline earth and transition metal cations. The retention...
Ion-exclusion chromatography of benzenecarboxylic acids on an unmodified silica-gel column (1997)
Ohta, K, Tanaka, K, Haddad, PR
In order to demonstrate the effectiveness of two unmodified silica-gel (Develosil 30-5) columns (300×7.8 mm I.D.) used in series for the ion-exclusion chromatographic separation of mono-, di, tri-...
Ohta, K, Tanaka, K, Paull, B, Haddad, PR
An unmodified silica gel (Develosil 30-5) column (150×4.6 mm I.D.) has been applied to the ion chromatographic separation of alkali, alkaline earth and transition metal cations. The retention...
Ion-exclusion chromatography of aliphatic carboxylic acids on an unmodified silica gel column (1996)
Ohta, K, Tanaka, K, Haddad, PR
In order to demonstrate the effectiveness of a silica gel column in ion-exclusion chromatography, the elution behavior of aliphatic carboxylic acids was investigated on an unmodified silica gel...
Ion-exclusion chromatography of aliphatic carboxylic acids on an unmodified silica gel column (1996)
Ohta, K, Tanaka, K, Haddad, PR
In order to demonstrate the effectiveness of a silica gel column in ion-exclusion chromatography, the elution behavior of aliphatic carboxylic acids was investigated on an unmodified silica gel...
Ion-exclusion chromatography of aliphatic carboxylic acids on an unmodified silica gel column (1996)
Ion-exclusion chromatography of aliphatic carboxylic acids on an unmodified silica gel column (1996)
Ohta, K, Tanaka, K, Haddad, PR
In order to demonstrate the effectiveness of a silica gel column in ion-exclusion chromatography, the elution behavior of aliphatic carboxylic acids was investigated on an unmodified silica gel...
Diagnostic Medical X Ray Examination Frequencies in Taiwan (1996)
Liu, W.H., Kai, M., Ohta, K., Chen, F.D., Kusama, T.
A nationwide survey of frequencies of diagnostic medial X ray examinations was conducted in Taiwan in 1993 in order to obtain information for the estimation of the population dose from medical...
Distribution of Blue Galaxies in a Merging Cluster of Galaxies Abell 168 (1995)
Tomita, A., Nakamura, F. E., Takata, T., Nakanishi, K., Takeuchi, T., Ohta, K., ...
The fraction of star-forming galaxies in rich clusters of galaxies increases rapidly with the redshift. This is interpreted as the result of a rapid evolution of cluster galaxies, though its...
Ion-exclusion chromatography of aliphatic carboxylic acids on an unmodified silica gel column (1995)
Chiral Fermions on Quantum Four-Spheres (1994)
We construct wave functions and Dirac operator of spin $1/2$ fermions on quantum four-spheres. The construction can be achieved by the q-deformed differential calculus which is manifestly $SO(5)_q$...
A New Solution of the Solar Neutrino Flux (1994)
We report a new solution to explain the observed deficit of the solar neutrino flux by Homestake, Kamiokande II and III, GALLEX and SAGE experiments. We use the matter mixing and the helicity...
Dirac operators on quantum two spheres (1994)
We investigate the spin $1/2$ fermions on quantum two spheres. It is shown that the wave functions of fermions and a Dirac Operator on quantum two spheres can be constructed in a manifestly covariant...
A Method for Measuring Strain by Analyzing Sharpness of ECP With Image Analysis (1994)
Y. Yoshitomi, K. Ohta, J. Harase, Y. Suga
A method for measuring strain by analyzing sharpness of Electron Channeling Pattern (ECP) with Image analysis has been newly developed. The relative value of sharpness of first-order pseudo-Kikuchi...
Direct zero knowledge proofs of computational power in 5 rounds (1991)
Zero-knowledge proofs of computational power have been proposed by Yung and others. In this paper, we propose an efficient (direct) and constant round (five round) construction of zero knowledge...
A high efficiency GaAs FET high power amplifier applicable in handy phone equipment (1990)
Matsumoto, K., Furutani, N., Fukaya, J., Hirano, Y., Fukuden, N., Ohta, K.
Recenty a handy telephone has been developed and is going to replace a mobile telephone. A handy telephone utilizing batteries uses most of its DC power for its transmitter power amplifier. Therefore...
R. Shimizu, K. Ohta, J. Harase
An investigation has been carried out utilizing model and experimental pole figures made by X-ray technique in order to examine the use of the vector method as a means of the texture analysis. The...
An Investigation Into the Accuracy of the Vector Method by Comparison With ECP Measurements (1989)
R. Shimizu, J. Harase, K. Ohta
In an attempt to investigate the accuracy of the vector method for crystal texture analysis, a comparison has been made between the inversion result of the pole figure made by X-ray studies using the...
PHOTO-INDUCED EFFECT ON PERMEABILITY IN COBALT DOPED Li- AND Mg-FERRITES (1977)
Polycrystalline samples of both Li0.5Fe2.5O4 and MgFe2O4 : Co (0.001-0.006 atoms per formula unit) are found to exhibit a photo-induced decrease in initial permeability at 77 K. With higher Co...
PHOTO-INDUCED EFFECT ON THE PERMEABILITY OF YIG SINGLE CRYSTALS WITH Pb IMPURITY (1977)
Ichinose, N., Yokoyama, H., Hisatake, K., Ohta, K.
The influence of irradiation with white light on the permeability at 77 K is investigated on p-type yttrium iron garnet single crystals with Pb impurity. The existence of an irreversible...
PHOTO-INDUCED EFFECT ON PERMEABILITY IN COBALT DOPED Li- AND Mg-FERRITES (1977)
Polycrystalline samples of both Li0.5Fe2.5O4 and MgFe2O4 : Co (0.001-0.006 atoms per formula unit) are found to exhibit a photo-induced decrease in initial permeability at 77 K. With higher Co...
PHOTO-INDUCED EFFECT ON THE PERMEABILITY OF YIG SINGLE CRYSTALS WITH Pb IMPURITY (1977)
Ichinose, N., Yokoyama, H., Hisatake, K., Ohta, K.
The influence of irradiation with white light on the permeability at 77 K is investigated on p-type yttrium iron garnet single crystals with Pb impurity. The existence of an irreversible...
PHOTO-INDUCED EFFECT ON PERMEABILITY IN COBALT DOPED Li- AND Mg-FERRITES (1977)
Polycrystalline samples of both Li0.5Fe2.5O4 and MgFe2O4 : Co (0.001-0.006 atoms per formula unit) are found to exhibit a photo-induced decrease in initial permeability at 77 K. With higher Co...
PHOTO-INDUCED EFFECT ON THE PERMEABILITY OF YIG SINGLE CRYSTALS WITH Pb IMPURITY (1977)
Ichinose, N., Yokoyama, H., Hisatake, K., Ohta, K.
The influence of irradiation with white light on the permeability at 77 K is investigated on p-type yttrium iron garnet single crystals with Pb impurity. The existence of an irreversible...
Ohta, K, Wu, T C, Lichten, M, Shibata, T
In Saccharomyces cerevisiae, DNA double-strand breaks (DSBs) initiate meiotic recombination at open sites in chromatin, which display a meiosis-specific increase in micrococcal nuclease (MNase)...
Komatsuzawa, H, Sugai, M, Ohta, K, Fujiwara, T, Nakashima, S, Suzuki, J, ...
In methicillin-resistant Staphylococcus aureus (MRSA) strains, Triton X-100 reduced the oxacillin resistance level, although the degree of reduction varied from strain to strain. To study the...
Autobacteriographic studies of clarithromycin and erythromycin in mice.
Kohno, Y, Ohta, K, Suwa, T, Suga, T
The antimicrobial activity of clarithromycin was compared with that of erythromycin in experimentally infected mice by whole-body autobacteriography. In mice with systemic staphylococcal infections,...
Sugai, M, Fujiwara, T, Ohta, K, Komatsuzawa, H, Ohara, M, Suginaka, H
Staphylococcus capitis EPK1 produces a glycylglycine endopeptidase, ALE-1 (M. Sugai, T. Fujiwara, T. Akiyama, M. Ohara, H. Komatsuzawa, S. Inoue, and H. Suginaka, J. Bacteriol. 179:1193-1202, 1997),...
Ohta, K, Beall, D S, Mejia, J P, Shanmugam, K T, Ingram, L O
Zymomonas mobilis genes for pyruvate decarboxylase (pdc) and alcohol dehydrogenase II (adhB) were integrated into the Escherichia coli chromosome within or near the pyruvate formate-lyase gene (pfl)....
Effects of environmental conditions on xylose fermentation by recombinant Escherichia coli.
Ohta, K, Alterthum, F, Ingram, L O
In batch fermentations, optimal conversion of xylose to ethanol by recombinant Escherichia coli was obtained under the following conditions: 30 to 37 degrees C, pH 6.4 to 6.8, 0.1 to 0.2 M potassium...
Metabolic engineering of Klebsiella oxytoca M5A1 for ethanol production from xylose and glucose.
Ohta, K, Beall, D S, Mejia, J P, Shanmugam, K T, Ingram, L O
The efficient diversion of pyruvate from normal fermentative pathways to ethanol production in Klebsiella oxytoca M5A1 requires the expression of Zymomonas mobilis genes encoding both pyruvate...
Ohta, K, Hamada, S, Nakamura, T
Pure nonhydrolyzed inulin was directly converted to ethanol in a simultaneous saccharification and fermentation process. An inulinase-hyperproducing mutant, Aspergillus niger 817, was grown in a...
Hanazawa, S, Murakami, Y, Takeshita, A, Kitami, H, Ohta, K, Amano, S, ...
To account for infiltration of the periodontal tissues by neutrophils, the present study was undertaken to examine whether Porphyromonas gingivalis fimbriae, important structures involved in...
Yachie, A, Takano, N, Ohta, K, Uehara, T, Fujita, S, Miyawaki, T, ...
In the present study, a whole-blood culture was employed to examine the ability of preterm and term newborn infants to produce interleukin-6 (IL-6) in response to major bacterial pathogens such as...
Ohta, K, Makinen, K K, Loesche, W J
An enzyme from Treponema denticola that hydrolyzes a synthetic trypsin substrate, N-alpha-benzoyl-L-arginine-p-nitroanilide (BAPNA), was purified to near homogeneity, as judged by gel...
Okuda, K, Naito, Y, Ohta, K, Fukumoto, Y, Kimura, Y, Ishikawa, I, ...
A total of five bacteriological samples from the periodontal pockets of two sisters with localized juvenile periodontitis and their mother with advanced periodontitis was studied. Gram-negative...
Antigenic characteristics and serological identification of 10 black-pigmented Bacteroides species.
Okuda, K, Ohta, K, Kato, T, Takazoe, I, Slots, J
Strains of 10 black-pigmented Bacteroides species were serologically characterized using absorbed and unabsorbed rabbit antisera. An agglutination test using intact cells or heated cells (100 degrees...
Hanazawa, S, Sagiya, T, Kitami, H, Ohta, K, Nishikawa, H, Kitano, S
The aim of the present study was to develop a monoclonal antibody that recognizes the shared antigen of Porphyromonas endodontalis so that we could use the antibody in direct identification and...
Hirata, Y, Emori, T, Eguchi, S, Kanno, K, Imai, T, Ohta, K, ...
Endothelins (ET) produce endothelium-dependent vasodilation through nitric oxide (NO) synthesis. The present study was designed to elucidate the cellular mechanism by which ET induces synthesis and...
Levy, J A, Ibrahim, A B, Shirai, T, Ohta, K, Nagasawa, R, Yoshida, H, ...
Autoimmune-prone (NZB x NZW)F1 (B/W) mice fed three nearly isocaloric diets with varied fat content showed a marked difference in their spontaneous development of immune complex disease and their...
Changes in chromatin structure at recombination initiation sites during yeast meiosis.
Ohta, K, Shibata, T, Nicolas, A
Transient double-strand breaks (DSBs) occur during Saccharomyces cerevisiae meiosis at recombination hot spots and are thought to initiate most, if not all, homologous recombination between...
Liver enriched transcription factors and differentiation of hepatocellular carcinoma.
Hayashi, Y, Wang, W, Ninomiya, T, Nagano, H, Ohta, K, Itoh, H
The development of a complex organism relies on the precise temporal and spacial expression of its genome in many different cell types. The unique phenotype of hepatocytes arises from the expression...
Sugano, M, Hayashi, Y, Yoon, S, Kinoshita, M, Ninomiya, T, Ohta, K, ...
AIMS--To investigate whether the amount of hepatitis C viral RNA (HCV-RNA) in liver and serum can predict the effectiveness of interferon treatment in patients with chronic hepatitis C. METHODS--The...
Regulation of a major microtubule-associated protein by MPF and MAP kinase.
Shiina, N, Moriguchi, T, Ohta, K, Gotoh, Y, Nishida, E
The interphase-M phase transition of microtubule dynamics is thought to be induced by phosphorylation reactions mediated by MPF and by MAP kinase functioning downstream of MPF. We have now identified...
C-terminal topology of gastric H+,K(+)-ATPase.
Asano, S, Arakawa, S, Hirasawa, M, Sakai, H, Ohta, M, Ohta, K, ...
An antibody was prepared against a peptide corresponding to residues 1024-1034 (the putative C-terminus) of the alpha-subunit of hog gastric H+,K(+)-ATPase. The antibody bound to a 95 kDa band of...
Shared and distinct functions of RAGS and ELF-1 in guiding retinal axons.
Monschau, B, Kremoser, C, Ohta, K, Tanaka, H, Kaneko, T, Yamada, T, ...
Two ligands for Eph-related receptor tyrosine kinases, RAGS and ELF-1, have been implicated in the control of development of the retinotectal projection. Both molecules are expressed in overlapping...
Furuse, M, Nagase, Y, Tsubouchi, H, Murakami-Murofushi, K, Shibata, T, Ohta, K
In Saccharomyces cerevisiae, Mre11 protein is involved in both double-strand DNA break (DSB) repair and meiotic DSB formation. Here, we report the correlation of nuclease and DNA-binding activities...
Novel triterpenoids inhibit both DNA polymerase and DNA topoisomerase.
Mizushina, Y, Iida, A, Ohta, K, Sugawara, F, Sakaguchi, K
As described previously, we found that new triterpenoid compounds, designated fomitellic acids A and B, which selectively inhibit the activities of mammalian DNA polymerases alpha and beta...
Fox, M E, Yamada, T, Ohta, K, Smith, G R
The heptamer sequence ATGACGT is essential for activity of the M26 meiotic recombination hotspot in the ade6 gene of Schizosaccharomyces pombe. Hotspot activity is associated with binding of the...
Mizuno, K, Hasemi, T, Ubukata, T, Yamada, T, Lehmann, E, Kohli, J, ...
In fission yeast, an ATF/CREB-family transcription factor Atf1-Pcr1 plays important roles in the activation of early meiotic processes via the stress-activated protein kinase (SAPK) and the...
Ohta, K, Wu, T C, Lichten, M, Shibata, T
In Saccharomyces cerevisiae, DNA double-strand breaks (DSBs) initiate meiotic recombination at open sites in chromatin, which display a meiosis-specific increase in micrococcal nuclease (MNase)...
Komatsuzawa, H, Sugai, M, Ohta, K, Fujiwara, T, Nakashima, S, Suzuki, J, ...
In methicillin-resistant Staphylococcus aureus (MRSA) strains, Triton X-100 reduced the oxacillin resistance level, although the degree of reduction varied from strain to strain. To study the...
Autobacteriographic studies of clarithromycin and erythromycin in mice.
Kohno, Y, Ohta, K, Suwa, T, Suga, T
The antimicrobial activity of clarithromycin was compared with that of erythromycin in experimentally infected mice by whole-body autobacteriography. In mice with systemic staphylococcal infections,...
Sugai, M, Fujiwara, T, Ohta, K, Komatsuzawa, H, Ohara, M, Suginaka, H
Staphylococcus capitis EPK1 produces a glycylglycine endopeptidase, ALE-1 (M. Sugai, T. Fujiwara, T. Akiyama, M. Ohara, H. Komatsuzawa, S. Inoue, and H. Suginaka, J. Bacteriol. 179:1193-1202, 1997),...
Ohta, K, Beall, D S, Mejia, J P, Shanmugam, K T, Ingram, L O
Zymomonas mobilis genes for pyruvate decarboxylase (pdc) and alcohol dehydrogenase II (adhB) were integrated into the Escherichia coli chromosome within or near the pyruvate formate-lyase gene (pfl)....
Effects of environmental conditions on xylose fermentation by recombinant Escherichia coli.
Ohta, K, Alterthum, F, Ingram, L O
In batch fermentations, optimal conversion of xylose to ethanol by recombinant Escherichia coli was obtained under the following conditions: 30 to 37 degrees C, pH 6.4 to 6.8, 0.1 to 0.2 M potassium...
Metabolic engineering of Klebsiella oxytoca M5A1 for ethanol production from xylose and glucose.
Ohta, K, Beall, D S, Mejia, J P, Shanmugam, K T, Ingram, L O
The efficient diversion of pyruvate from normal fermentative pathways to ethanol production in Klebsiella oxytoca M5A1 requires the expression of Zymomonas mobilis genes encoding both pyruvate...
Ohta, K, Hamada, S, Nakamura, T
Pure nonhydrolyzed inulin was directly converted to ethanol in a simultaneous saccharification and fermentation process. An inulinase-hyperproducing mutant, Aspergillus niger 817, was grown in a...
Hanazawa, S, Murakami, Y, Takeshita, A, Kitami, H, Ohta, K, Amano, S, ...
To account for infiltration of the periodontal tissues by neutrophils, the present study was undertaken to examine whether Porphyromonas gingivalis fimbriae, important structures involved in...
Yachie, A, Takano, N, Ohta, K, Uehara, T, Fujita, S, Miyawaki, T, ...
In the present study, a whole-blood culture was employed to examine the ability of preterm and term newborn infants to produce interleukin-6 (IL-6) in response to major bacterial pathogens such as...
Ohta, K, Makinen, K K, Loesche, W J
An enzyme from Treponema denticola that hydrolyzes a synthetic trypsin substrate, N-alpha-benzoyl-L-arginine-p-nitroanilide (BAPNA), was purified to near homogeneity, as judged by gel...
Okuda, K, Naito, Y, Ohta, K, Fukumoto, Y, Kimura, Y, Ishikawa, I, ...
A total of five bacteriological samples from the periodontal pockets of two sisters with localized juvenile periodontitis and their mother with advanced periodontitis was studied. Gram-negative...
Antigenic characteristics and serological identification of 10 black-pigmented Bacteroides species.
Okuda, K, Ohta, K, Kato, T, Takazoe, I, Slots, J
Strains of 10 black-pigmented Bacteroides species were serologically characterized using absorbed and unabsorbed rabbit antisera. An agglutination test using intact cells or heated cells (100 degrees...
Hanazawa, S, Sagiya, T, Kitami, H, Ohta, K, Nishikawa, H, Kitano, S
The aim of the present study was to develop a monoclonal antibody that recognizes the shared antigen of Porphyromonas endodontalis so that we could use the antibody in direct identification and...
Hirata, Y, Emori, T, Eguchi, S, Kanno, K, Imai, T, Ohta, K, ...
Endothelins (ET) produce endothelium-dependent vasodilation through nitric oxide (NO) synthesis. The present study was designed to elucidate the cellular mechanism by which ET induces synthesis and...
Levy, J A, Ibrahim, A B, Shirai, T, Ohta, K, Nagasawa, R, Yoshida, H, ...
Autoimmune-prone (NZB x NZW)F1 (B/W) mice fed three nearly isocaloric diets with varied fat content showed a marked difference in their spontaneous development of immune complex disease and their...
Changes in chromatin structure at recombination initiation sites during yeast meiosis.
Ohta, K, Shibata, T, Nicolas, A
Transient double-strand breaks (DSBs) occur during Saccharomyces cerevisiae meiosis at recombination hot spots and are thought to initiate most, if not all, homologous recombination between...
Liver enriched transcription factors and differentiation of hepatocellular carcinoma.
Hayashi, Y, Wang, W, Ninomiya, T, Nagano, H, Ohta, K, Itoh, H
The development of a complex organism relies on the precise temporal and spacial expression of its genome in many different cell types. The unique phenotype of hepatocytes arises from the expression...
Sugano, M, Hayashi, Y, Yoon, S, Kinoshita, M, Ninomiya, T, Ohta, K, ...
AIMS--To investigate whether the amount of hepatitis C viral RNA (HCV-RNA) in liver and serum can predict the effectiveness of interferon treatment in patients with chronic hepatitis C. METHODS--The...
Regulation of a major microtubule-associated protein by MPF and MAP kinase.
Shiina, N, Moriguchi, T, Ohta, K, Gotoh, Y, Nishida, E
The interphase-M phase transition of microtubule dynamics is thought to be induced by phosphorylation reactions mediated by MPF and by MAP kinase functioning downstream of MPF. We have now identified...
C-terminal topology of gastric H+,K(+)-ATPase.
Asano, S, Arakawa, S, Hirasawa, M, Sakai, H, Ohta, M, Ohta, K, ...
An antibody was prepared against a peptide corresponding to residues 1024-1034 (the putative C-terminus) of the alpha-subunit of hog gastric H+,K(+)-ATPase. The antibody bound to a 95 kDa band of...
Shared and distinct functions of RAGS and ELF-1 in guiding retinal axons.
Monschau, B, Kremoser, C, Ohta, K, Tanaka, H, Kaneko, T, Yamada, T, ...
Two ligands for Eph-related receptor tyrosine kinases, RAGS and ELF-1, have been implicated in the control of development of the retinotectal projection. Both molecules are expressed in overlapping...
Furuse, M, Nagase, Y, Tsubouchi, H, Murakami-Murofushi, K, Shibata, T, Ohta, K
In Saccharomyces cerevisiae, Mre11 protein is involved in both double-strand DNA break (DSB) repair and meiotic DSB formation. Here, we report the correlation of nuclease and DNA-binding activities...
Novel triterpenoids inhibit both DNA polymerase and DNA topoisomerase.
Mizushina, Y, Iida, A, Ohta, K, Sugawara, F, Sakaguchi, K
As described previously, we found that new triterpenoid compounds, designated fomitellic acids A and B, which selectively inhibit the activities of mammalian DNA polymerases alpha and beta...
Fox, M E, Yamada, T, Ohta, K, Smith, G R
The heptamer sequence ATGACGT is essential for activity of the M26 meiotic recombination hotspot in the ade6 gene of Schizosaccharomyces pombe. Hotspot activity is associated with binding of the...
Mizuno, K, Hasemi, T, Ubukata, T, Yamada, T, Lehmann, E, Kohli, J, ...
In fission yeast, an ATF/CREB-family transcription factor Atf1-Pcr1 plays important roles in the activation of early meiotic processes via the stress-activated protein kinase (SAPK) and the...
Aberrant cytokine production from tenosynovium in dialysis associated amyloidosis.
Miyasaka, N, Sato, K, Kitano, Y, Higaki, M, Nishioka, K, Ohta, K
Culture supernatants of tenosynovial tissues from patients with carpal tunnel syndrome undergoing chronic haemodialysis contained interleukin (IL) 1-like and IL6-like activity. These culture...
Urokinase type plasminogen activator receptor expression in colorectal neoplasms
Suzuki, S, Hayashi, Y, Wang, Y, Nakamura, T, Morita, Y, Kawasaki, K, ...
a First Division of Pathology, b First Division of Surgery, c Second Division of Internal Medicine, Kobe University School of Medicine, Kobe, Japan, d Division of Gastroenterology, Kobe Asahi...
Amari, F., Ohta, K., Kojima, H., Yoshimura, N.
AIMS—To determine if postoperative visual outcome after successful macular hole surgery can be predicted with preoperative scanning laser ophthalmoscope (SLO) microperimetry. METHODS—A...
Miyawaki, T, Kasahara, Y, Kanegane, H, Ohta, K, Yokoi, T, Yachie, A, ...
CD45R0 (UCHL1), a member of leucocyte common antigen family, is expressed largely on previously activated or memory T cells. We examined CD45R0 expression of T cell subpopulations in patients with...
Yachie, A, Konno, A, Ohta, K, Wada, T, Seki, H, Taniguchi, N, ...
Neonatal B cells with the naive (sIgD+) phenotype are able to generate IgG- and IgA-producing cells as well as IgM production in the presence of memory CD4+ T cells expressing L-selectin (CD62L) in...
MIZUNO, K, YACHIE, A, NAGAOKI, S, WADA, H, OKADA, K, KAWACHI, M, ...
Although triggering by infectious agents and abnormal immune responses may play some role in the pathogenesis of juvenile dermatomyositis syndrome (JDMS), the precise mechanism of muscle destruction...
Mizuno, K, Toma, T, Tsukiji, H, Okamoto, H, Yamazaki, H, Ohta, K, ...
Monocytes are composed of two distinct subpopulations in the peripheral blood as determined by their surface antigen expressions, profiles of cytokine production and functional roles played in vivo....
Kim, S, Ohta, K, Hamaguchi, A, Omura, T, Tominaga, K, Yukimura, T, ...
Fibronectin plays an important role in various vascular diseases. A subpressor (200 ng kg-1 min-1) or pressor (1000 ng kg-1 min-1) dose of angiotensin II was continuously infused into rats by osmotic...
Kim, S., Ohta, K., Hamaguchi, A., Yukimura, T., Miura, K., Iwao, H.
1. This study was undertaken to determine whether the AT1 receptor directly contributes to hypertension-induced cardiac hypertrophy and gene expressions. 2. Stroke-prone spontaneously hypertensive...
T lymphocytes and silica-induced pulmonary inflammation and fibrosis in mice.
Suzuki, N., Ohta, K., Horiuchi, T., Takizawa, H., Ueda, T., Kuwabara, M., ...
BACKGROUND: Silica-induced pulmonary inflammation and fibrosis in animals provides a good model for chronic pulmonary inflammation and fibrosis. Although lymphocytes are implicated in the...
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...