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Your search keyword '"Tsubakihara, K."' showing total 5 results
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5 results on '"Tsubakihara, K."'

1. Global density-dependent $\alpha$-nucleon interaction for $\alpha$-nucleus elastic scattering

Author

Furumoto, T., Tsubakihara, K., Ebata, S., and Horiuchi, W.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

We provide a global density-dependent $^4$He-nucleon (DD-$\alpha N$) interaction to construct the $\alpha$-nucleus optical model potential (OMP) in a wide range of incident energies. The global parametrization for the DD-$\alpha N$ interaction is obtained based on the proton-$^4$He OMP which reproduces the elastic scattering cross-section data very well in the incident energies of 12.04--500 MeV per nucleon. We derive the $\alpha$-nucleus potential by a folding procedure with the point-nucleon density obtained by a microscopic mean-field model using the present DD-$\alpha N$ interaction. The density dependence of the DD-$\alpha N$ interaction is fixed phenomenologically to reproduce the $\alpha$-nucleus elastic scattering cross-section data by the $^{16}$O, $^{40}$Ca, $^{58}$Ni, $^{90}$Zr, and $^{208}$Pb targets at $E/A =$ 10--342.5 MeV. We also show the total reaction cross sections, which are helpful in fixing one free parameter, the renormalization factor for the imaginary part of the $\alpha$-nucleus potential. Lastly, we show some examples, which clearly demonstrate the validity and power of the present DD-$\alpha N$ approach., Comment: 20 pages, 11 figures

Published
2023
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3. Global density-dependent α–nucleon interaction for α–nucleus elastic scattering.

Author

Furumoto, T, Tsubakihara, K, Ebata, S, and Horiuchi, W

Subjects
ELASTIC scattering, NUCLEON-nucleon interactions, PARTICLES (Nuclear physics)
Abstract

We provide a global density-dependent 4He–nucleon (DD-α N) interaction to construct the α–nucleus optical model potential (OMP) across a wide range of incident energies. The global parametrization for the DD-α N interaction is obtained based on the proton–4He OMP, which reproduces the elastic scattering cross-section data very well in the incident energies of 12.04–500 MeV per nucleon. Using the present DD-α N interaction, we derive the α–nucleus potential by a folding procedure with the point-nucleon density obtained by a microscopic mean-field model. The density dependence of the DD-α N interaction is fixed phenomenologically to reproduce the α–nucleus elastic scattering cross-section data obtained from 16O, 40Ca, 58Ni, 90Zr, and 208Pb targets at E / A = 10–342.5 MeV. We also show the total reaction cross sections, which are helpful in fixing one free parameter, the renormalization factor for the imaginary part of the α–nucleus potential. Lastly, we show some examples, which clearly demonstrate the validity and power of the present DD-α N approach. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Clinical effectiveness of four neuraminidase inhibitors (oseltamivir, zanamivir, laninamivir, and peramivir) for children with influenza A and B in the 2014-2015 to 2016-2017 influenza seasons in Japan.

Author

Ishiguro N, Koseki N, Kaiho M, Ariga T, Kikuta H, Oba K, Togashi T, Morita K, Inagawa A, Okamura A, Yamazaki S, Shida S, Konno M, Kawamura N, Ishizaka A, Takada K, Tsubakihara K, Nagano N, Shibata M, Furuyama H, Matsuzono Y, Koike A, Murashita M, Hatae Y, Arioka H, Yamanaka T, Watanabe T, Tabata Y, Kumita Y, Hazama K, Akutsu Y, Aoyagi H, Tobise C, Azuma K, Yasoshima K, Sawada Y, Uetsuji K, Tsuchida A, Tsuchiyama A, Yasuda K, Odagawa Y, and Yoshioka M

Subjects
Acids, Carbocyclic, Adolescent, Child, Child, Preschool, Cyclopentanes therapeutic use, Enzyme Inhibitors therapeutic use, Female, Guanidines therapeutic use, Humans, Infant, Infant, Newborn, Influenza A virus drug effects, Influenza A virus genetics, Betainfluenzavirus drug effects, Betainfluenzavirus genetics, Japan, Male, Oseltamivir therapeutic use, Pyrans, Seasons, Sialic Acids, Treatment Outcome, Zanamivir therapeutic use, Cyclopentanes administration & dosage, Enzyme Inhibitors administration & dosage, Guanidines administration & dosage, Influenza, Human drug therapy, Neuraminidase antagonists & inhibitors, Oseltamivir administration & dosage, Zanamivir administration & dosage, Zanamivir analogs & derivatives
Abstract

The clinical effectiveness of four neuraminidase inhibitors (NAIs) (oseltamivir, zanamivir, laninamivir, and peramivir) for children aged 0 months to 18 years with influenza A and B were investigated in the 2014-2015 to 2016-2017 influenza seasons in Japan. A total of 1207 patients (747 with influenza A and 460 with influenza B) were enrolled. The Cox proportional-hazards model using all of the patients showed that the duration of fever after administration of the first dose of the NAI was shorter in older patients (hazard ratio = 1.06 per 1 year of age, p < 0.001) and that the duration of fever after administration of the first dose of the NAI was shorter in patients with influenza A infection than in patients with influenza B infection (hazard ratio = 2.21, p < 0.001). A logistic regression model showed that the number of biphasic fever episodes was 2.99-times greater for influenza B-infected patients than for influenza A-infected patients (p < 0.001). The number of biphasic fever episodes in influenza A- or B-infected patients aged 0-4 years was 2.89-times greater than that in patients aged 10-18 years (p = 0.010), and the number of episodes in influenza A- or B-infected patients aged 5-9 years was 2.13-times greater than that in patients aged 10-18 years (p = 0.012)., (Copyright © 2018. Published by Elsevier Ltd.)

Published
2018
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