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  1. No Access

    Article

    Highly Purified Choline Acetylase

    THE enzymatic synthesis of acetylcholine in the mammalian organism is inextricably linked with the general metabolism, especially with the general acetylating reactions. Hence it may be more rational to restri...

    H. KUMAGAI, S. EBASHI in Nature (1954)

  2. Article

    Essential Relaxing Factor in Muscle other than Myokinase and Creatine Phosphokinase

    EXTRACTS of rabbit skeletal muscle contain factors which play a part in the relaxation of muscle fibre models, such as glycerinated fibres1–3. Two of them isolated have been identified with known enzymes: myokina...

    H. KUMAGAI, S. EBASHI, F. TAKEDA in Nature (1955)

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  3. No Access

    Article

    Evaluation of gastric acid secretory tests and gastric acidity in various gastric diseases

    M. Yoshimori, T. Sakita, Y. Ogura, S. Takasu, H. Fukutomi… in Gastroenterologia Japonica (1970)

  4. No Access

    Article

    On the study about the gastrocamera type PA with finder (GT-PF)

    M. Kobayashi, T. Sakita, Y. Oguro, H. Fukutomi, T. Miwa… in Gastroenterologia Japonica (1972)

  5. No Access

    Chapter

    Cultural Conditions for the Microbial Production of β-Tyrosinase and Tryptophanase

    β-Tyrosinase (tyrosine phenol-lyase: EC 4.1.99.2) and tryptophanse (tryptophan indole-lyase: EC 4.1.99.1) are enzymes which respectively catalyze the degradation of L-tyrosine and L-tryptophan, and require pyr...

    H. Yamada, H. Kumagai, H. Enei, H. Nakazawa, K. Mitsugi in Enzyme Engineering (1978)

  6. No Access

    Chapter

    Immobilization of β-Tyrosinase Cells with Collagen

    β-Tyrosinase (tyrosine phenol-lyase: EC 4.1.99.2) catalyzes the stoichiometric conversion of L-tyrosine to pyruvate, ammonia and phenol, and requires pyridoxal phosphate (PLP) as a cofactor (1–3). Apparently h...

    H. Yamada, K. Yamada, H. Kumagai, T. Hino, S. Okamura in Enzyme Engineering (1978)

  7. No Access

    Chapter

    Krypton Kβ/Kα Intensity Ratios for 6 MEV/AMU Ion Bombardment

    K X-rays of Kr produced by 6 MeV/amu He-, Li-, B-, C-, N-, O-, and Ne-ion bombardment were measured with a Si(Li) detector as a function of Kr gas pressure. Ion beams were obtained from the cyclotron of the In...

    T. Tonuma, Y. Awaya, T. Kambara, H. Kumagai… in Inner-Shell and X-Ray Physics of Atoms and… (1981)

  8. No Access

    Article

    Multiply charged carbon ions produced from C2H2 and CH4 molecules in energetic, heavy ion impact

    Multiply charged carbon ions up to C5+ ions have been observed from C2H2 and CH4 molecules in 1.05 MeV/amu Ar12+ ion impact. These ions are believed to be produced through processes where multiply charged molecul...

    H. Tawara, T. Tonuma, H. Shibata, S. H. Be… in Zeitschrift für Physik D Atoms, Molecules … (1986)

  9. No Access

    Chapter

    S-Carboxymethylcysteine Synthase From Escherichia Coli

    An enzyme that catalyses the synthesis of S-carboxy- methyl-L-cysteine from β -chloro-L-alanine and thioglycolic acid was found in cells of E. coli W3110. It was purified and characterized.

    H. Kumagai, H. Suzuki, H. Shigematsu, T. Tochikura in Biochemistry of Vitamin B6 (1987)

  10. No Access

    Chapter and Conference Paper

    Multiple ionization by energetic heavy ion collisions — an evidence of the innershell electron transfer in highly charged recoil ion production

    T. Tonuma, T. Matsuo, M. Kase, T. Kambara, H. Kumagai… in High-Energy Ion-Atom Collisions (1988)

  11. No Access

    Chapter and Conference Paper

    Multiply-charged ions and cluster ions produced from frozen CO2 and H2O targets in energetic, heavy ion collisions

    Some frozen gases (CO2 and H2O) are used to produce multiply charged recoil Ions as well as cluster ions under high energy, heavy ion impact. The ions produced in the frozen gas targets are found to be quite diff...

    H. Tawara, T. Tonuma, H. Kumagai, T. Matsuo… in Atomic Physics of Highly Charged Ions (1991)

  12. No Access

    Chapter and Conference Paper

    Knowledge media station

    Knowledge Media Station aims at an active medium which not only stores and utilizes knowledge represented by a well-formulated language, but also enables users to incorporate and organize this knowledge togeth...

    Y. Hosono, H. Kumagai, H. Shimizu, M. Sumida, A. Takeuchi… in Logic Programming '89 (1991)

  13. No Access

    Article

    Multiply-charged ions and cluster ions produced from frozen CO2 and H2O targets in energetic, heavy ion collisions

    Some frozen gases (CO2 and H2O) are used to produce multiply charged recoil ions as well as cluster ions under high energy, heavy ion impact. The ions produced in the frozen gas targets are found to be quite diff...

    H. Tawara, T. Tonuma, H. Kumagai, T. Matsuo… in Zeitschrift für Physik D Atoms, Molecules … (1991)

  14. No Access

    Article

    Solid-gas effect inK-vacancy production in near symmetric slow heavy-ion-atom collisions

    We have measured the target thickness dependence ofK-vacancy production probabilities and total cross sections for 40.6 MeV Ar ions hitting Ca and Cu targets. The probabilities were measured as a function of the ...

    T. Kambara, R. Schuch, Y. Awaya, T. Mizogawa… in Zeitschrift für Physik D Atoms, Molecules … (1992)

  15. No Access

    Article

    Controlling of Microstructure Generation by Direct Holographic Etching of Semiconductor Substrates

    Controlling of microstructure generation was investigated in laser etching of n-GaAs. For single-beam etching and holographic etching with high ratios of average spacing of holographic grating to average spaci...

    K. Toyoda, H. Kumagai, M. Ezaki, M. Obara in MRS Online Proceedings Library (1992)

  16. No Access

    Article

    High-spin isomeric state in144Pm

    A new high-spin isomeric state with a half-life of ≥2μs was found in144Pm by observing the14N(136Xe,6n)144Pm reactions. The excitation energy and spin of the isomer were estimated to be ∼7.4 MeV and ∼27+, respect...

    T. Murakami, Y. Gono, A. Ferragut… in Zeitschrift für Physik A Hadrons and Nuclei (1993)

  17. No Access

    Chapter and Conference Paper

    Two distinct quinoprotein amine oxidases are functioning in Aspergillus niger

    Two distinct copper-quinoprotein amine oxidases (EC 1.4.3.6), AO-I and AO-II, were isolated from the soluble fraction of homogenized Aspergillus niger mycelia grown on butylamine medium. AO-I is a dimmer consisti...

    I. Frebort, H. Toyama, K. Matsushita, H. Kumagai… in Biochemistry of Vitamin B6 and PQQ (1994)

  18. No Access

    Article

    High-spin states of145Sm

    High-spin states of145Sm were studied by using the20Ne(136Xe, α7n),139La (10B, 4n) and138Ba(13C,6n) reactions. The decay scheme of a high-spin isomer of145Sm was established. The excitation energy and the spin-pa...

    A. Odahara, Y. Gono, S. Mitarai, E. Ideguchi… in Zeitschrift für Physik A Hadrons and Nuclei (1994)

  19. No Access

    Article

    High-spin states in148Tb

    High-spin states of148Tb were studied by inbeam γ-ray spectroscopic techniques using141Pr(13C,6n)148Tb and27Al(130Te,9n)148Tb reactions. The level scheme of148Tb was established up to the excitation energy of 11....

    E. Ideguchi, Y. Gono, S. Mitarai… in Zeitschrift für Physik A Hadrons and Nuclei (1995)

  20. No Access

    Article

    Preparation and characteristics of nickel oxide thin film by controlled growth with sequential surface chemical reactions

    H. Kumagai, M. Matsumoto, K. Toyoda, M. Obara in Journal of Materials Science Letters (1996)

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