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Research at OU


6 Ammal, S. C.; Yamataka, H.; Aida, M.; Dupuis, M. (Institute of Scientific and Industrial Research)
Dynamics-Driven Reaction Pathway in an Intramolecular Rearrangement
Science, 299, 1555-1557 (2003)

7 Edamatsu, K.; Shimizu, R.; Itoh, T. (Graduate School of Engineering Science)
Measurement of the photonic de Broglie wavelength of entangled photon pairs generated by spontaneous parametric down-conversion
Physical Review Letters, 89, 213601/1-4 (2002)

8 Fujimura, H.*1;Fujita, H.*1;Fujita, Y.*2;Fujiwara, M.*1;Hara, K.*1;Kawase, K.*1;Nakanishi, K.*1 ; Zegers, R.G.T; Abend, H.; Akimune, H.; van den Berg, A.M.; Gales, S.; Harakeh, M.N.; Ishikawa, T.; Kawabata, T.; Mibe, T.; Nakayama, S.; Toyokawa, H.; Uchida, M.; Tamagata, T.; Yamasaki, K.; Yosoi, M. *1(Research Center for Nuclear Physics) *2(Department of Physics)
Excitation and Decay of the Isovector Giant Monopole Resonances via the 208Pb(3He,tp) Reaction at 410 MeV
Physical Review Letters, 90, 202501(1)-202501(4) (2003)

The excitation and subsequent proton decay of the isovector spin-flip giant monopole resonance is studied via the 208Pb(3He,t) reaction at 410 MeV. In the inclusive spectrum, about 60% of the non-energy-weighted sum-rule strength for this resonance was found in the region 29<Ex(208Bi)<51 MeV. The central excitation energy and width of the IVSGMR are 37 MeV and 4 MeV, respectively. It is found that the branching ratio for proton decay is 52% and that the deep neutron-hole states in 207Pb are strongly fed.

9 Fukase, K.; Ueno, A.; Fukase, Y.; Oikawa, M.; Suda. Y.; Kusumoto, S. (Graduate School of Science)
Synthesis and Biological Activities of Lipid A Analogs Possessing β-Glycosidic Linkage at 1-Position
Bulletin Chemical Society of Japan, 76, 485-500 (2003)

10 Herzog, J.;Hibi, T. (Graduate School of Information Science and Technology)
Discrete Polymatroids
Journal of Algebraic Combinatorics, 16, 239-268 (2002)

The discrete polymatroid is a multiset analogue of the matroid. Based on the polyhedral theory established in late 1960’s and in early 1970’s, in the present paper the combinatorics and algebra on discrete polymatroids have been developed. In particular, base rings of discrete polymatroids and their toric ideals as well as base polytopes of discrete polymatorids are extensively studied from viewpoints of both commutative algebra and algebraic combinatorics.

11  Kishishita, S.*1;Okajima, T.*1; Kim, M.; Yamaguchi, H.; Hirota, S.;Suzuki, S.*2;Kuroda, S.*1;Tanizawa, K.*1;Mure, M.*1 *1(Institute of Scientific and Industrial Research) *2(Graduate School of Science)
Role of Copper Ion in Bacterial Copper Amine Oxidase: Spectroscopic and Crystallographic Studies of Metal-substituted Enzymes
Journal of the American Chemical Society, 125, 1041-1055 (2003)

12 Kokubo, K.; Kakimoto, H.; Oshima, T.(Graduate School of Engineering)
Cation-Recognized Photosensitization in E-Z Isomerization of 1,2-Dichloroethylene by Crowned Benzophenones
Journal of the American Chemical Society, 124, 6548-6549 (2002)

The cation-recognized triplet photosensitizer was first developed. Photosensitized E-Z isomerization of olefin with 15- and 18-membered ring crowned benzophenones as triplet sensitizers resulted in the cation-dependent increase in the Z/E isomer ratios up to ca 10 by addition of alkali and alkaline earth metal ions in comparison with the metal-free reactions (Z/E = 1.5-2.1). It was found that the cation recognized sensitization brought about the change of the inherent triplet energy ET as well as the ratio of quantum yield ΦEZ to raise the Z/E ratio.
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