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OSHIMA M TOH Y KOIZUMI M KIMURA A Hatsukawa Y MORIKAWA T NAKAMURA M SUGAWARE M KUSAKARI H 《中国科学:物理学 力学 天文学(英文版)》2011,(Z1)
A new rotational band has been identified and assigned to 188Au for the first time using the 173Yb(19F,4nγ) reaction at the beam energies of 86 and 90 MeV. This band is proposed to be built on the πh9/2 νi13/2 configuration by comparing the band properties with known bands in neighboring nuclei. The prolate-to-oblate shape transition through triaxial shape has been proposed to occur around 188Au for the πh9/2 νi13/2 bands in odd-odd Au isotopes on the basis of total Routhian surface (TRS) calculations. 相似文献
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KOHICHI MIYASHITA TOSHIBUMI SAKATA KENICHIRO NAKAMURA † TOMOJI KAWAI† TADAYOSHI SAKATA† 《Photochemistry and photobiology》1984,39(2):151-154
Abstract— Electronic and catalytic properties of CuO doped by univalent or trivalent elements were investigated. Doping B or Sb into CuO was found to induce the decarboxylation reaction of pyruvic acid under irradiation with visible light. The decarboxylation reaction is accelerated by raising the temperature. The electronic conductivity of CuO is decreased by increasing the doping concentration of the trivalent element in the low concentration region and increased in the high concentration region. The doping concentration which gives the maximum production of the catalytic decarboxylation is well coincident with the concentration at the minimum electronic conductivity. 相似文献
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由过氧化物3,3′,4,4′-四叔丁基过氧碳酰二苯甲酮和香豆素酮染料所组成的光引发体系对可见光敏感,致使感光树脂可以用氩离子激光曝光。感光树脂的敏度有赖于基体树脂,当用聚N-乙烯基-2-吡咯烷酮为基体树脂时,对波长488nm的氩离子激光可获得0-01mJ/cm2的高敏度。染料对过氧化物的敏化是由于电子从染料激发态转移到过氧化物而引起的。 相似文献
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Naoki KANEKO Akinori NAKAMURA Yukihiko WASHIMI Takashi KATO Takashi SAKURAI Yutaka ARAHATA Masahiko BUNDO Akinori TAKEDA Shumpei NIIDA Kengo ITO Kenji TOBA Koichi TANAKA Katsuhiko YANAGISAWA 《Proceedings of the Japan Academy. Series B, Physical and biological sciences》2014,90(9):353-364
Alzheimer’s disease (AD) is the most common and devastating dementia. Simple and practical biomarkers for AD are urgently required for accurate diagnosis and to facilitate the development of disease-modifying interventions. The subjects for the study were selected on the basis of PiB amyloid imaging by PET. Forty PiB-positive (PiB+) individuals, including cognitively healthy controls (HC), and mild cognitive impairment and AD individuals, and 22 PiB-negative (PiB−) HC participated. Employing our novel highly sensitive immunoprecipitation-mass spectrometry, we measured plasma amyloid β-proteins (Aβs; Aβ1-40 and Aβ1-42) and Aβ-approximate peptides (AβAPs), which were cleaved from amyloid precursor protein (APP). Among the AβAPs, APP669-711 appeared to be a good reference for deciphering pathological change of Aβ1-42. We evaluated the performance of the ratio of APP669-711 to Aβ1-42 (APP669-711/Aβ1-42) as a biomarker. APP669-711/Aβ1-42 significantly increased in the PiB+ groups. The sensitivity and specificity to discriminate PiB+ individuals from PiB− individuals were 0.925 and 0.955, respectively. Our plasma biomarker precisely surrogates cerebral amyloid deposition. 相似文献
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In the course of our searching for anti-HIV agents from natural sources, we have isolated a triterpene and a doubly linked proanthocyanidin dimer as HIV-1 protease inhibitors from the wood of Xanthoceras sorbifolia Bunge (Sapindaceae)1. Further investigation of this plant has led to the isolation of a protoilludane sesquiterpene (1). The present paper describes the isolation and structural determination of this novel sesquiterpene. The EtOH eluate of a MeOH extract of the wood of X. so… 相似文献
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KOICHI HASEGAWA KENTARO DOI KOICHI NAKAMURA AKITOMO TACHIBANA 《Molecular physics》2013,111(1-2):295-307
Surface crossing of the potential energy surfaces (PESs) and the formulation of differentiable PES functions are discussed in the quartet N+ 2 + O2 system containing the T shape intermediate complex. Consideration of the ion-dipole interaction between N2 and O2 fragments due to the induced dipole moment of the neutral molecule gives a good image of the surface crossing between the quartet reactant state (N+ 2 ···O2) and the quartet product state (N2 ···O+ 2) for the charge transfer (CT) reaction in terms of the conventional harpooning mechanism. Differentiable functions of PESs are constructed for the reactant and product states that may be applied for 3-dimensional dynamics calculations by means of wavepackets, and examples of 2-dimensional wavepacket dynamics calculations are introduced. Further, electron transfer processes and local electronic nature in the CT reaction are discussed in terms of the quantum mechanical energy densities based on regional density functional theory. Regional partitioning by using the kinetic energy density provides a new concept of electron transfer, and the tension density provides new images of microscopic electronic stresses. 相似文献
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Yuu UCHIO Naoko SHIMA Kaho NAKAMURA Osamu NITTA Tetsuo IKAI 《Physical Therapy Research》2021,24(3):204
Objective: To clarify the corrected age of walking attainment in very low birth weight infants by birth weight and gestational age, and determine perinatal factors affecting the delay in walking attainment. Method: This was a longitudinal study. We investigated walking attainment and perinatal factors in 145 very low birth weight infants without neurological abnormalities (mean birth weight 1019.3 ± 299.7 g, gestational age 29.0 ± 2.9 weeks). The study infants were stratified by birth weight (group A: <1,000 g, group B: 1,000 g≤, <1,500 g) and gestational age (group I: <28 weeks, group II: 28 weeks≤, <37 weeks) and were compared using unpaired t-tests. Furthermore, we examined the perinatal factors that affect the delay in walking attainment using multiple regression analysis. Results: Of the walking attainment, infants in Group A were older than those in Group B (50th percentile, 15.8 vs. 14.7 months). Infants in Group I were older than those in Group II (50th percentile, 16.0 vs. 14.8 months). Using multiple regression analysis with walking attainment age as the dependent variable, the duration of mechanical ventilation was found to be significantly related. Conclusion: Very low birth weight infants with light weight and short gestational age have delayed walking attainment, and longer duration of mechanical ventilation increases the risk of delay. 相似文献
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We correlate the strength of the solvent-mediated attraction of a pair of hydrophobic solute molecules with the free energy of hydration of a single such molecule. This is done in the framework of a particular model but the results may be more general. When the model parameters are chosen to represent methane as the solute in water it is found that over the relevant temperature range the strength of the attraction, expressed as a multiple of the thermal energy kT, increases nearly linearly with increasing hydration free energy expressed in the same units. In the middle of the temperature range studied the strength of the attraction is roughly one-third of the hydration free energy. 相似文献