Search Results - (Author, Cooperation:K. Nomoto)
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Publication Date: 2018-05-23Publisher: Institute of Physics Publishing (IOP)Electronic ISSN: 1748-0221Topics: PhysicsPublished by: -
2R. M. Quimby ; M. Oguri ; A. More ; S. More ; T. J. Moriya ; M. C. Werner ; M. Tanaka ; G. Folatelli ; M. C. Bersten ; K. Maeda ; K. Nomoto
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-04-26Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Ganguly, G. ; Suzuki, A. ; Yamasaki, S. ; Nomoto, K. ; Matsuda, A.
[S.l.] : American Institute of Physics (AIP)
Published 1990Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The light-induced decrease of the photoconductivity in deuterated amorphous silicon is a factor of 3 less even though the defect density increase is greater than in hydrogenated material having equivalent as-deposited properties. Consequent changes in the average recombination cross section of the defects is illustrated. Since the differences in the light soaking behavior upon isotopic substitution has been found to disappear in films deposited at low temperatures, the changes are thought to arise from differences in the silicon network occurring during growth.Type of Medium: Electronic ResourceURL: -
4Ugajin, R. ; Suzuki, T. ; Nomoto, K. ; Hase, I.
[S.l.] : American Institute of Physics (AIP)
Published 1994Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The quantum states of two electrons in a pair of coupled quantum dots confined by heterostructures of compound semiconductors were calculated. As the physical parameters were changed various quantum states of electrons were obtained. The correlation between electrons in these quantum states is analyzed using the mean distance between electrons and its variance. When the quantum states include quadruple degenerate ground states, electrons are localized on each quantum dot and all kinetic movement except spin is frozen. This suggests that a Mott insulator phase will appear in a bulk array of coupled quantum dots. Because coupled quantum dot arrays can be assembled to include both metallic regions and insulating regions without changing the density of electrons, they have great potential in applications for future electron devices.Type of Medium: Electronic ResourceURL: -
5Nomoto, K. ; Ugajin, R. ; Suzuki, T. ; Hase, I.
[S.l.] : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We propose a novel logic device using coupled quantum dots (CQDs) in which single-electron tunneling is influenced by electron–electron interaction. If occupation/unoccupation by a single electron in a quantum dot is viewed as a bit 1/0, we can say that the device can perform (N)AND and (N)OR operations simultaneously. Data input/output is performed by irradiation/absorption of photons. The (N)AND and (N)OR operations are performed by the relaxation of the electronic system to the (Fock) ground state which depends on the number of electrons in CQDs. When the device is constructed of semiconductor nanostructures, phonon emission from an electron is the main contributor to the energy dissipation process. We also present results of a theoretical analysis of the device performance. These results show that (i) the error probability at the final state depends on only the dissipation energy and becomes smaller as the dissipation energy becomes larger, and (ii) the speed of operation depends on the dissipation energy and dissipative interactions and becomes slower as the dissipation energy becomes larger if LA-phonon emission is taken into account. If the size of the dot is 10 nm, the speed of operation and the error probability are estimated to be about 10 ps and about 0.2 at 77 K, respectively. The basic idea of the device is applicable to two-dimensional (2D) pattern processing if the devices are arranged in a 2D array. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
6Nomoto, K. ; Taira, K. ; Suzuki, T. ; Hase, I.
Woodbury, NY : American Institute of Physics (AIP)
Published 1997Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We have studied the current–voltage characteristics I(V) of ultrasmall area AlSb–InAs resonant tunneling diodes (RTDs) with diameters down to 20 nm. Resonant tunneling peaks were observed for all the diodes at room temperature. The peak-to-valley ratio reduces with the decreasing diameter of the RTD. We found from the diameter dependence of the valley current that the reduction is due to a contribution of the thermally activated surface current to the valley current. For RTDs with diameters less than 100 nm, we observed fine structures around zero bias at 4 K. They can be attributed to tunneling through zero-dimensional states confined by a RTD sidewall. © 1997 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
7NOMOTO, K. ; IWAMOTO, K. ; YAMAOKA, H. ; SUZUKI, T. ; POLS, O.R. ; HEUVEL, E.P.J. ; HÖFLICH, P.
Oxford, UK : Blackwell Publishing Ltd
Published 1995Staff ViewISSN: 1749-6632Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Natural Sciences in GeneralType of Medium: Electronic ResourceURL: -
8Nomoto, K. ; Taira, K. ; Suzuki, T. ; Hase, I.
[S.l.] : American Institute of Physics (AIP)
Published 1999Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The peak-to-valley ratio of AlSb–InAs resonant tunneling diodes decreases as the diameter of the diode decreases due to the surface current. To clarify the origin of the surface current, we studied AlSb–InAs single-barrier diodes with various diameters and barrier thicknesses at various temperatures. We conclude from experimentally obtained results that bulk current is caused by tunneling through an AlSb barrier influenced by the band structure and surface current is caused by an electron emission from band-gap surface states at the AlSb barrier based on the Poole–Frenkel mechanism with ionization energy of 0.24 eV. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
9Shimizu, I. ; Tomita, Y. ; Iwai, T. ; Kajiwara, T. ; Okano, S. ; Sueishi, K. ; Nomoto, K. ; Yasui, H.
Oxford, UK; Malden, USA : Blackwell Science Ltd
Published 2005Staff ViewISSN: 1365-3083Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: In the present study, we have elucidated the efficacy of two cyclophosphamide (CP)-induced tolerance protocols for the induction of B-cell tolerance against Galα1-3Galβ1-4GlcNAc (αGal) antigens. α1,3-galactosyltransferase-deficient (GalT–/–; H-2b/d) mice received with 1 × 108 AKR (αGal+/+ H-2k) spleen cells (SC) followed by 200 mg/kg CP, or alternatively followed by 200 mg/kg CP, 30 mg/kg Busulfan (BU) and 1 × 108 T-cell-depleted AKR bone marrow cells (BMC). The generation of both anti-αGal and anti-donor antibodies were completely suppressed, but normal antibody production against third party antigens was observed after BALB/c skin grafting in both groups of GalT–/– mice. In GalT–/– mice, treated with SC and CP, mixed chimerism was not observed. Cellular rejection was observed in grafted donor AKR hearts with an absence of humoral rejection, whereas humoral rejection was observed in untreated GalT–/– mice. On the other hand, long-term mixed chimerism and permanent acceptance of donor AKR skin graft and heart graft were achieved in GalT–/– mice treated with SC, CP, BU and BMC. These results demonstrate the efficacy of classical drug-induced tolerance in the induction of B-cell tolerance against αGal antigens. However, induction of stable mixed chimerism was required for the suppression of cellular rejection.Type of Medium: Electronic ResourceURL: -
10Suzuki, H. ; Nomura, S. ; Masaoka, T. ; Goshima, H. ; Kamata, N. ; Kodama, Y. ; Ishii, H. ; Kitajima, M. ; Nomoto, K. ; Hibi, T.
Oxford, UK : Blackwell Publishing Ltd
Published 2004Staff ViewISSN: 1365-2036Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Recently, chicken egg yolk was recognized as an inexpensive antibody source, and the therapeutic usefulness of egg yolk immunoglobulin Y (IgY) in oral passive immunization has been investigated. Although multiple antibiotic treatments eradicate most Helicobacter pylori (H. pylori) infections, therapy fails in 10–15% of cases due to the development of drug resistance. Consequently, it is important that new, more broadly based therapies for the treatment of H. pylori infection should be identified. The present study evaluated the effect, on H. pylori infection, of IgY prepared from egg yolk of hens immunized with H. pylori urease (anti-HpU IgY). Seventeen asymptomatic volunteers diagnosed as H. pylori-positive by the 13C-urea breath test (UBT) were orally administered anti-HpU IgY for 4 weeks. Four weeks later, UBT values were significantly decreased although no case showed H. pylori eradication. An H. pylori-positive 53-year-old female gastritis patient administered anti-HpU IgY plus lansoprazole for 8 weeks showed a decrease in serum pepsinogen (PG) I and UBT values as well as an increase in the PG I/II ratio. In conclusion, anti-HpU IgY may mitigate H. pylori-associated gastritis and partially attenuate gastric urease activity. Furthermore, anti-HpU IgY combined with antacids appears to ameliorate gastric inflammation. These encouraging results may represent a novel approach to the management of H. pylori-associated gastroduodenal disease.Type of Medium: Electronic ResourceURL: -
11Staff View
ISSN: 0301-0104Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
12Kamatani, Y. ; Minakata, H. ; Kenny, P.T.M. ; Iwashita, T. ; Watanabe, K. ; Funase, K. ; Xia Ping, S. ; Yongsiri, A. ; Kanapi, C.G. ; Novales, E.T. ; Takeuchi, H. ; Nomoto, K. ; Kim, K.H. ; Novales-Li, P.
Amsterdam : ElsevierStaff ViewISSN: 0006-291XKeywords: [abr] CD; circular dichroism ; [abr] ED"5"0; effective dose fifty ; [abr] FMRFamide; ; [abr] HPLC; high performance liquid chromatography ; [abr] PON; periodically oscillating neuron ; [abr] SIMS; secondary ionization mass spectrometry ; [abr] TAN; tonically autoactive neuron ; [abr] Tris; tris-(hyroxymethyl) aminomethane ; [abr] VG1; visceral ganglion neuron ; [abr] ^1H-NMR; proton nuclear magnetic resonance ; [abr] d-LCDN; dorsal left cerebral distinct neuron ; [abr] d-RCDN; dorsal right cerebral distinct neuron ; [abr] v-RCDN; ventral right cerebral distinct neuronSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
13Nomoto, K. ; Takemoto, T. ; Maeda, M. ; Yasuko, I. ; Doi, M. ; Inoue, M. ; Ishida, T.
Amsterdam : ElsevierStaff ViewISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
14Staff View
ISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
15Kamatani, Y. ; Minakata, H. ; Kenny, P.T.M. ; Iwashita, T. ; Watanabe, K. ; Funase, K. ; Xia Ping, S. ; Yongsiri, A. ; Kanapi, C.G. ; Novales, E.T. ; Takeuchi, H. ; Nomoto, K. ; Kim, K.H. ; Novales-Li, P.
Amsterdam : ElsevierStaff ViewISSN: 0006-291XKeywords: [abr] CD; circular dichroism ; [abr] ED"5"0; effective dose fifty ; [abr] FMRFamide; ; [abr] HPLC; high performance liquid chromatography ; [abr] PON; periodically oscillating neuron ; [abr] SIMS; secondary ionization mass spectrometry ; [abr] TAN; tonically autoactive neuron ; [abr] Tris; tris-(hyroxymethyl) aminomethane ; [abr] VG1; visceral ganglion neuron ; [abr] ^1H-NMR; proton nuclear magnetic resonance ; [abr] d-LCDN; dorsal left cerebral distinct neuron ; [abr] d-RCDN; dorsal right cerebral distinct neuron ; [abr] v-RCDN; ventral right cerebral distinct neuronSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
16Oumi, T. ; Ukena, K. ; Matsushima, O. ; Ikeda, T. ; Fujita, T. ; Minakata, H. ; Nomoto, K.
Amsterdam : ElsevierStaff ViewISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
17Kosugi, G. ; Aoki, K. ; Yamada, T. ; Totani, T. ; Ohta, K. ; Iye, M. ; Hattori, T. ; Aoki, W. ; Furusawa, H. ; Hurley, K. ; Kawabata, K. S. ; Kobayashi, N. ; Komiyama, Y. ; Mizumoto, Y. ; Nomoto, K. ; Noumaru, J. ; Ogasawara, R. ; Sato, R. ; Sekiguchi, K. ; Shirasaki, Y. ; Suzuki, M. ; Takata, T. ; Tamagawa, T. ; Terada, H. ; Watanabe, J.
[s.l.] : Nature Publishing Group
Published 2006Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The prompt γ-ray emission from γ-ray bursts (GRBs) should be detectable out to distances of z 〉 10 (ref. 1), and should therefore provide an excellent probe of the evolution of cosmic star formation, reionization of the intergalactic medium, and the metal enrichment ...Type of Medium: Electronic ResourceURL: -
18Mazzali, P. A. ; Masetti, N. ; Ferrero, P. ; Klose, S. ; Palazzi, E. ; Ramirez-Ruiz, E. ; Woosley, S. E. ; Kouveliotou, C. ; Deng, J. ; Filippenko, A. V. ; Foley, R. J. ; Fynbo, J. P. U. ; Kann, D. A. ; Li, W. ; Hjorth, J. ; Nomoto, K. ; Patat, F. ; Sauer, D. N. ; Sollerman, J. ; Vreeswijk, P. M. ; Guenther, E. W. ; Levan, A. ; O'Brien, P. ; Tanvir, N. R. ; Wijers, R. A. M. J.
[s.l.] : Nature Publishing Group
Published 2006Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Long-duration γ-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supernovae were not hitherto known to be associated with GRBs, and therefore GRB–supernovae were thought to be ...Type of Medium: Electronic ResourceURL: -
19Vreeswijk, P. M. ; van Paradijs, J. ; Kouveliotou, C. ; Augusteijn, T. ; Böhnhardt, H. ; Brewer, J. P. ; Doublier, V. ; Gonzalez, J.-F. ; Leibundgut, B. ; Lidman, C. ; Hainaut, O. R. ; Patat, F. ; Heise, J. ; in't Zand, J. ; Hurley, K. ; Groot, P. J. ; Strom, R. G. ; Mazzali, P. A. ; Iwamoto, K. ; Nomoto, K. ; Umeda, H. ; Nakamura, T. ; Young, T. R. ; Suzuki, T. ; Shigeyama, T.
[s.l.] : Macmillan Magazines Ltd.
Published 1998Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The discovery of afterglows associated with γ-ray bursts at X-ray, optical and radio wavelengths and the measurement of the redshifts of some of these events, has established that γ-ray bursts lie at extreme distances, making them the most powerful photon-emitters known in the ...Type of Medium: Electronic ResourceURL: -
20Staff View
ISSN: 0891-5849Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyMedicineType of Medium: Electronic ResourceURL: