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長尾 道弘*; Kelley, E. G.*; Faraone, A.*; 齋藤 真器名*; 依田 芳卓*; 黒葛 真行*; 高田 慎一; 瀬戸 誠*; Butler, P. D.*
Physical Review Letters, 127(7), p.078102_1 - 078102_7, 2021/08
被引用回数：21 パーセンタイル：87.71(Physics, Multidisciplinary)Membrane viscosity is a fundamental property that controls molecular transport and structural rearrangements in lipid membranes. Given its importance in many cell processes, various experimental and computational methods have been developed to measure the membrane viscosity, yet the estimated values depend highly on the method and vary by orders of magnitude. Here we investigate the molecular origins of membrane viscosity by measuring the nanoscale dynamics of the lipid acyl tails using X-ray and neutron spectroscopy techniques. The results show that the membrane viscosity can be estimated from the structural relaxation times of the lipid tails.
Dimitriou, P.*; Basunia, S*; Bernstein, L.*; Chen, J.*; Elekes, Z.*; Huang, X.*; Hurst, A.*; 飯村 秀紀; Jain, A. K.*; Kelley, J.*; et al.
EPJ Web of Conferences, 239, p.15004_1 - 15004_4, 2020/09
被引用回数：0 パーセンタイル：0.1(Nuclear Science & Technology)評価済み核構造データファイル(Evaluated Nuclear Structure Data File: ENSDF)は、原子核構造と崩壊に関する様々な実験データを全ての核種について集めて、それらの実験データの評価値を与えてある世界唯一のデータファイルである。ENSDFは定期的に更新されており、そのための評価作業は各国の評価者で分担している。評価作業を速やかに行うために、IAEAの援助の下に評価者の国際的なネットワークが組織されている。この発表では、ネットワークの最近の活動のうち、ENSDFの処理コードの開発、測定が必要とされているデータのリストの作成、インターネット版核図表の利用の拡充などについて報告する。また、核構造・崩壊データの需要が増大しているにもかかわらず、評価者が減っている問題についても述べる。
Angell, C.; Hammond, S. L.*; Karwowski, H. J.*; Kelley, J. H.*; Krti
ka, M.*; Kwan, E.*; 牧永 あや乃*; Rusev, G.*
Physical Review C, 91(3), p.039901_1 - 039901_2, 2015/03
被引用回数：5 パーセンタイル：74.67(Physics, Nuclear)The present manuscript is an erratum to a previously published paper "Evidence for radiative coupling of the pygmy dipole resonance to excited states" [Phys. Rev. C 86, 051302(R) (2012)].
Angell, C.; Hammond, S. L.*; Karwowski, H.*; Kelley, J.*; Krtika, M.*; Kwan, E.*; 牧永 あや乃*; Rusev, G.*
Physical Review C, 86(5), p.051302_1 - 051302_5, 2012/11
被引用回数：66 パーセンタイル：94.2(Physics, Nuclear)The photoabsorption cross section and ground state branching ratio of 
Nd were measured using quasi-monoenergetic 
-ray beams at several beam energies. Two peaks corresponding to the isovector pygmy dipole resonance (PDR) were identified. The branching ratios were compared to statistical-model calculations. We found that the Brink hypothesis is violated, and that the branching ratios are only reproduced by assuming that the observed isovector PDR selectively decays to the isoscalar PDR.
NdAngell, C.; Hammond, S. L.*; Karwowski, H. J.*; Kelley, J. H.*; Krtika, M.*; Kwan, E.*; Makinaga, A.*; Rusev, G.*
no journal, ,
The photoabsorption cross section and ground state branching ratio of Nd were measured using quasi-monoenergetic -ray beams at several beam energies, using a 
and a 
reaction. Two peaks corresponding to the isovectorpygmy dipole resonance (PDR) were identified. The branching ratios were compared to statistical model calculations using the photoabsorption cross section as the radiative strength function. We found that the Brink hypothesis is violated. Extensions to the statistical model to explain the experimental data were attempted, and suggest a new radiative decay mode of the PDR.
