Acta Medica Okayama
2023
Development of Neutron Tagging Algorithm and Search for Supernova Relic Neutrino in SK-Gd Experiment
EN
Masayuki
HARADA
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
Photochemical properties of carbon nanotube/dendrimer hybrids for photocatalytic H2 evolution from water and biomedical imaging
EN
Masahiro
YAMAGAMI
Graduate School of Environmental and Life Science, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
Experimental investigations of the rheological properties of mantle minerals
EN
Longli
GUAN
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
Electrical conductivity and Seebeck coefficient of mantle minerals
EN
Ran
Wang
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
ギンツブルグ・ランダウ模型に基づいた反強磁性スピンゼーベック効果の理論研究
EN
Yutaka
YAMAMOTO
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
超伝導渦糸揺らぎ状態におけるスピンホール効果の理論
EN
Takuya
TAIRA
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
Density functional and spin fluctuation theory based study for iron-based and organic superconductors
EN
Makoto
SHIMIZU
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
Theory for superconductivity and magnetism in layered titanium and chromium based materials
EN
Hanxiang
XU
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
メキシコサラマンダーにおける皮膚のコラーゲン線維構造と再生機構の解析
EN
Rena
KASHIMOTO
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
Chemical reactions induced by localized light and their application to metal nanofabrication
EN
Yuki
TAKEUCHI
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2023
3成分activator-inhibitor model の特異極限問題の球対称平衡解の線型安定性
EN
Takuya
KOJIMA
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
The aetiology of mesothelioma: morphological and chemical analyses of asbestos ferruginous bodies
EN
AVRAMESCU MAYA LILIANA
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
Biochemical characterization of the insertase Alb3.1 involved in the assembly of light-harvesting chlorophyll a/b complexes
EN
MITHUN KUMAR RATHOD
Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
Proposal and application of a new method for cluster detection in large-scale spatial data by the echelon scan method
EN
Yusuke
Takemura
Graduate School of Environmental and Life Science, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
多変量グラフ表現の提案と多角的視点による消費者行動の評価
EN
Mika
Fujiwara
Graduate School of Environmental and Life Science, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
Geochemical study of Late Cenozoic mafic volcanic rocks from Vietnam: Implications for genesis of intraplate volcanism and mantle heterogeneity in Southeast Asia
EN
DAO VAN NGHIEM
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
四国地域の内陸地殻内地震の確率論的地震動評価における震源特性モデルの高度化に関する研究
EN
Kozo
Onishi
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
複素逆容量解析を用いた電子誘電体LuFe2O4とLu2Fe3O7の電気磁気効果の研究
EN
Yukimasa
Fukada
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
ホモロジー球面上の有限群の滑らかなodd-fixed-point actionの非許容性に関する研究
EN
Shunsuke
Tamura
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2022
A study on monomial ideals and Specht ideals
EN
Kosuke
Shibata
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
Studies on Software Development to Detect Hotspot Cluster and Structural Analysis of Spatial Data Based on Echelon Analysis
EN
Shoji
Kajinishi
Graduate School of Environmental and Life Science, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
Structural and electronic properties of novel superconducting materials over a wide pressure range
EN
Huan
Li
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
Development of a miniaturized photometer with paired emitter-detector light-emitting diodes and its applications
EN
SASIKARN SEETASANG
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
A Reactive Force Field Molecular-Dynamics Simulation Study on High-Density Ice
EN
Yuji
Adachi
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
Development of a polarization modulator for the observation of CMB B-modes in search of primordial gravitational waves with LiteBIRD
EN
Kunimoto
Komatsu
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
On hook formulas and poset structures concerning cylindric Young diagrams
EN
Yoshitaka
Toyosawa
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
Development of Rapid Collection and Analytical Methods for Exosomes
EN
Yumeki
Tani
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
Synthesis and Semiconducting Properties of Sulfur-Containing Polycyclic Aromatic Hydrocarbons
EN
Jenfei
Ji
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
Synthesis and spectral properties of picenes incorporating electron-withdrawing functionalities and their application to n-type field-effect transistors
EN
Yushin
Goa
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
アルカリ超酸化物AO2のπ電子磁性と分子配列・軌道秩序の相関に関する研究
EN
Mizuki
Miyajima
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2021
有限群の実表現のd-Smith同値の研究
EN
Kohei
Seita
Graduate School of Natural Science and Technology, Okayama university
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2020
生物活性天然物の立体発散的合成研究
EN
Hiroko
Wadas
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2020
ラットにおけるニューロメジンUの発現制御機構及び生理機能の解析
EN
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2020
Syntheses, Structures and Spectroscopic Properties of Mononuclear and Homodinuclear Lanthanoid(III) Dithiocarbamato Complexes
EN
ABDALLAH
YAKUBU
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2020
Synthesis and Properties of Multinuclear Iron(II) Complexes with Bis(bidentate) Schiff Base Ligands Containing Imidazole Groups
EN
Tsubasa
Tanaka
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2020
Development of multifunction fluorescence materials based on aminonaphthalimide
EN
Lei
Wang
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2020
Search for Astronomical Neutrinos from Blazar TXS0506+056 in Super-Kamiokande
EN
Kaito
Hagiwara
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Selective Transformation of Acyl Fluorides to Arylsilanes, Arylstannanes, 2-Substituted Propenes, and Esters
EN
Xie
Wang
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Selective Transformation of Acyl Fluorides and Chlorides to Nitriles, Arylboronates, and Esters
EN
Zhenhua
Wang
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Analytical development for precise and accurate determination of highly siderophile elements in geological samples and its application to the study of Horoman peridotite massif, Japan
EN
Xiaoyu
Zhou
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Structural and functional studies of oxygen-evolving photosystem II
EN
Yoshiki
Nakajima
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
複素環式生物活性化合物の合成研究
EN
Junki
Ando
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
核磁気共鳴法によるナトリウムイオン二次電池負極に関する研究
EN
Ryohei
Morita
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Neutrino-Oxygen Neutral Current Quasi-Elastic scattering measurement in the water Cherenkov detector
EN
Daisuke
Fukuda
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Study of neutrino signal from astronomical object in Super-Kamiokande
EN
Chenyuan
Xu
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Study of hadronic and electromagnetic decays of giant resonances in 12C using (p,p'γ) reaction
EN
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Studies on Strong Correlation Effects in Half-Metallic Ferromagnets based on Spin-Resolved Electronic Structure
EN
Hirokazu
Fujiwara
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
電子誘電体YbFe2O4の電荷秩序構造の決定と短距離磁気秩序に関わる格子歪転移の発見
EN
Kosuke
Fujiwara
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Qualitative behaviors of solutions in reaction-diffusion systems
EN
Amy Poh Ai Ling
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2019
Central limit theorems for non-symmetric random walks on covering graphs
EN
Ryuya
Nanba
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
Numerical techniques of tsunami simulation with source fault plane data and moving boundaries on triangular mesh
EN
Noverina Alfiany
Graduate School of Environmental and Life Science, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
Development of boron-doped diamond heater in the Kawai-type multi-anvil apparatus and its application to determine silicate melt viscosity at conditions of deep magma ocean
EN
LongJian
Xie
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
p-Sulfonatocalix[6]areneおよびCucurbit[6]urilの包接挙動の解明:塩および圧力の効果
EN
Yusaku
Honda
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
An Auslander-Reiten principle and a lifting problem over commutative DG algebras
EN
Maiko
Ono
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
十脚目甲殻類(ガザミ)における鉗脚の左右性に関する研究
EN
Nobufumi
Masunari
Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
赤外レーザーを用いたコヒーレント分光、非線形分光による緩和過程の研究
EN
Yusuke
Okabayashi
Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
キイロショウジョウバエの変態期における発生タイミングを決める生物タイマーの分子機構と栄養シグナルの影響
EN
Haruka
Nishida
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
Local electronic states and pair amplitudes in the vortex states of spin-triplet superconductors
EN
Kenta
Tanaka
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2018
Localization and colocalization in derived categories
EN
Tsutomu
Nakamura
Graduate School of Natural Science and Technology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
Geochemical Study of the Cameroon Volcanic Line: Implication for the Genesis of Passive Margin Intraplate Magmatism
EN
Iyasu Getachew Belay
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
Syntheses of new superconductors based on two-dimensional layered materials
EN
Xiao
Miao
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
Measurement of Relative Intensity of the Discrete γ Rays From the Thermal Neutron Capture Reaction 155, 157 Gd(n, γ) Using ANNRI Detector (JPARC)
EN
Pretam Kumar Das
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
Study ofγrays emitted from giant resonances of 12C and 16O
EN
Yan
Wang
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
鉄当量性を制御したYbFe2O4ナノ粒子の秩序と緩和
EN
Hiroyuki
Kobayashi
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
Hydration mechanism in Earth's mantle transition zone investigated by neutron diffraction
EN
Narangoo
Purevjav
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
Experimental study on rheology of deep mantle minerals
EN
Fang
Xu
科Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
The peptidergic control circuit for neuroendocrine dynamics in rats
EN
keita
Sato
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
A buffering mechanism against genetic perturbations in gene expression
EN
Koji
Ishikawa
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
Cell growth defects triggered by overloads on protein localization processes
EN
Reiko
Kintaka
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
放射光角度分解光電子分光による鉄系高温超伝導体の電子状態研究
EN
Masanori
Sunagawa
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2017
強いスピン軌道相互作用を持った物質における非従来型超伝導状態の探索
EN
Satoki
Maeda
Graduate School of Natural Science and Tchnology, Okayama University
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2016
Roles of transcription factor Runx3 in the regulation of ovarian functions in female mice
EN
Fumiya
Ojima
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2016
Epigenetic regulation via methylation on histone H3K27 is involved in leg regeneration patterning and photoperiodic responses of the circadian clock in the cricket Gryllus bimaculatus
EN
Yoshimasa
Hamada
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2016
Studies on the sexually dimorphic gastrin-releasing peptide system in the lumbosacral spinal cord that controls male reproductive function
EN
Takumi
Ochi
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2016
スピンプローブ法を用いた包接化合物,トリグリセリド二重膜,及びデンドリマーの分子認識能の高圧ESRによる解明
EN
Keitaro
Miyazono
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2016
Study of the infrared emission spectroscopy of C2 and identification of the forbidden transitions for the intercombination bands
EN
Wang
Chen
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2015
一軸異方性超伝導体における渦糸状態の理論
EN
Yujiro
Amano
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2015
In situ spectroscopic study of water speciation in the depolymerized silicate melts
EN
Nadezda
Chertkova
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2015
Phase Behavior and Solvation Properties in Inhomogeneous Fluids
EN
Kiharu
Abe
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2015
ペロブスカイト構造を有する鉄系高温超伝導体のNMRによる研究
EN
Keiji
Ueshima
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2015
歪多項式環と種々の環拡大
EN
Satoshi
Yamanaka
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2015
九州北西部における大雨の発現状況に注目した梅雨降水変動に関する気候学的研究
EN
Kazuo
Otani
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2015
Development of A Gadolinium-doped Water Cherenkov Detector for The Observation of Supernova Relic Neutrinos
EN
Takaaki
Mori
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
Synthesis and Reactions of Iminoisobenzofurans and α-Iminonitriles through Palladium-Catalyzed Three-Component Coupling of Arynes, Isocyanides, and Cyanoformates
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
雌雄異体の甲殻類(アナジャコ)における雌雄二形の発現異常
EN
Takahiro
Nanri
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
On the construction of generalized homology –cohomology theories by using bivariant functors
EN
Kohei
Yoshida
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
整数の分割の母関数と組合せ論
EN
Masanori
Ando
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
Local factors affecting morphological abnormalities in the mud shrimp, Upogebia major, inhabiting mud tidal flats of the Seto Inland Sea
EN
Jonathan Pino Ubaldo
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
ヨコヤアナジャコ(Upogebia yokoyai)における生活史形質(体長)の種内地理的変異:コホート解析,環境ならびに遺伝子解析による検討
EN
Miho
Morishita
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
Molecular analysis of the circadian clock system in the cricket, Gryllus bimaculatus
EN
Ota
Uryu
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
Theoretical study on a plastic phase of ice
EN
Kazuhiro
Himoto
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
Syntheses, Structures and Properties of Novel Transition Metal Complexes with 2-(1,3-Diazacycloalken-2-yl)phenolates or Their Precursors
EN
Ryoji
Mitsuhashi
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
同変実射影空間の標準直線束の研究
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
超放射過程を用いたバリウム原子準安定状態の生成
EN
Chiaki
Oae
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
空間反転対称性が欠如したパリティ混合超伝導体Li2T3B (T: Pd, Pt)の乱れ効果の研究
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
NMR/NQR法を用いた鉄砒素系超伝導体LaFeAsO1-xFxの研究
EN
Toshihide
Oka
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2014
層状希土類複電荷鉄酸化物YbFe2O4単結晶の電荷秩序形成による強誘電性とその対称性
EN
Tomoko
Nagata
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Studies on Synthesis and Physicochemical Properties of Substituted [n]Phenacenes (n = 5 and 6) through Cross-Coupling Reaction/Double Cyclization Sequences
EN
Ning-hui
Chang
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Highly Regio- and Stereoselective Synthesis of Multisubstituted Olefins via Dimetalation of Alkynylmetal Species and Chemoselective Cross-Coupling Sequences
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Study on field-effect transistors and superconductors with phenacene molecules
EN
Xuexia
He
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
First-principles study on high-pressure phases of AlPO4 compound: compression mechanism, dielectric properties, lattice dynamics, thermodynamics properties, and phase diagram
EN
Riping
Wang
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Roles of prostaglandin F2α and cortisol in regulating bovine uterine and ovarian function
EN
Duong
Thanh Hai
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Roles of glucosinolate-myrosinase system in stomatal closure in Arabidopsis
EN
Mohanmado
Syakawato Hosein
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Preparation and properties of new transition-metal complexes with dithiocarbamates bearing carboxyl or pyridine groups
EN
Keo
Vanthoeun
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
A homotopy theory of diffeological and numerically generated spaces
EN
Tadayuki
Haraguchi
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
星間化学・大気化学で重要なイオン・ラジカル種の振動・回転スペクトル研究
EN
Ryuji
Hujimori
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Post-glacial coral reef growth on Kodakara Island in the Northwest Pacific: the relationship between high-latitude reef growth and millennial-scale global climate change
EN
Nozomu
Hamanaka
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
A study on the mode of action of thermospermine in stem elongation of Arabidopsis thaliana
EN
Junichi
Kakehi
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Molecular analysis of the circadian clock in the firebrat, Thermobia domestica
EN
Yuichi
Kamae
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
Genetic tug-of-war analysis of the robustness of cell cycle regulation in fission yeast
EN
Ayako
Chino
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
パラジウムおよび銅化合物を用いる有機ケイ素,有機ホウ素化合物のクロスカップリング反応
EN
Daisuke
Ogawa
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2013
ミリ波・サブミリ波検出用アンテナ結合伝送線路型超伝導トンネル接合素子の開発
EN
Satoru
Mima
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2012
ゼオライトを特異反応場として利用したXe新奇化合物合成および小分子の活性化
EN
Hiroe
Torigoe
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2012
Proton migration and electrical conductivity of hydrous minerals under high pressure
EN
Xinzhuan
Guo
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2012
Tuning the Spin-Orbit Coupling and Transition from the Spin-Singlet to Spin-Triplet State in Non-Centrosymmetric Superconductors Li2(Pd1-xPtx)3B
EN
Syota
Harada
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1999
Vortex structure in anisotropic and quantum-limit superconductors
EN
Nobuhiko
Hayashi
Electronic structure of a single vortex (or vortex core structure) in type-II superconductors is theoretically discussed in the present thesis. Low-lying excited states in the superconductors due to the vortex, i.e., "vortex bound states," are examined in detail on the basis of numerical calculations. Two points are focused on: the effect of superconducting gap anisotropy on a vortex (Chapter 2) and the property of a vortex in quantum-limit situation (Chapter 3). The anisotropy of a superconducting energy gap has substantial effects on the structure of the vortex bound states. The local density of states around a vortex is calculated in a clean superconductor with the gap anisotropy within the framework of the quasiclassical theory of superconductivity. A characteristic structure of the local density of states, observed experimentally in the layered hexagonal superconductor 2H-NbSe(2) by scanning tunneling microscopy (STM), is well reproduced by assuming an anisotropic s-wave gap. The local density of states (or the bound states) around a vortex in superconductors with gap anisotropy is interpreted in terms of quasiparticle trajectories to facilitate an understanding of the rich electronic structure observed in STM experiments. This reveals not only a rich internal electronic structure associated with a vortex core, but also unique ability of the STM spectroscopy. The quantum limit means that the superconducting coherence length is small in the limit, i.e., it is comparable to the atomic length order. Focusing on quantum-limit behavior, fundamental structure of a vortex is studied by self-consistently solving the Bogoliubov-de Gennes equation. The discreteness of the energy levels of the vortex bound states is crucial for the vortex structure in the quantum limit. The following are revealed by the study of the quantum limit. The vortex core radius shrinks monotonically up to an atomic-scale length on
lowering the temperature T, and the shrinkage stops to saturate at a lower T. The pair potential, supercurrent, and local density of states around the vortex exhibit Friedel-like oscillations. The local density of states inside a vortex core generally has particle-hole asymmetry induced by the existence of the vortex itself. Some essential properties of general vortices which are concealed within the conventional non-quantum-limit analysis can be extracted by the quantum-limit analysis. On the basis of the inherent particle-hole asymmetry inside vortex cores, it is discussed in this thesis that electric charging of a vortex core is originated from the Friedel oscillation of the Bogoliubov wave functions around the vortex (Chapter 4) . This mechanism of the vortex core charging is independent of the slope in the normal-state density of states at the Fermi level. The temperature dependence of the vortex core charge is also presented. It is expected that by using STM, information on the vortex core charging is extracted through a relation between the vortex core charge and the vortex bound states.
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1995
Tectonism, metamorphism and plutonism of the Ryoke belt in the Ina district, Central Japan.
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1999
Galois theory for noncommutative rings and actions of pointed Hopf algebras
EN
Tadashi
Yanai
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1991
Structural and functional alanalyses of the genes on the invertible DNA segments in intact and defective bacteriophages
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1999
3/4filledバンドを有する擬2次元有機伝導体の低温構造と絶縁相
EN
本研究では,有機分子BEDT-TTFからなる有機伝導体のうち,バンドが3/4filledであり,2次元的なフェルミ面を持ちながら低温で非金属状態となる物質を含む2タイプの結晶構造に関してX線回折の手法により実験をおこない,電子状態の研究を行った.κ型結晶κ-(BEDT-TTF)(2)Cu[N(CN))(2)]X[X =Cl, Br]では,BEDT-TFF分子の2量体(ダイマー)化によってバンドが分裂し,伝導バンドは実効的に1/2 filledと見なせる.これまで提案されてきた"ダイマーモデル"では,ダイマーを1サイトと考え,ダイマー上のon site Coulomb反発U(eff)が2量体化の程度に左右され,系がMott絶縁体となるか否かはU(eff)と伝導バンドの幅W(u)との比で決定されるとしていたが,構造的な証拠が存在しなかった.X=Cl, Brの水素(h8)体,重水素置換(d8) 体について低温で精密結晶構造解析をおこない,"ダイマーモデル"が系統的に成り立つかを研究した.この結果,結晶構造の温度変化が大きく,低温構造が本質的に重要であることが明らかになった.つまり,低温で反強磁性体となるととが知られているCl塩では構造不安定性が小さく順調に格子が熱収縮し,低温でダイマー性が強くなる.これに対し,低温で金属から超伝導体になるBr塩では,2種類の構造変化が200〜220K近辺,80K付近で生じる.前者ではきわめて弱い2c周期の変調構造が陰イオン間の相互作用により形成されるが,層間のカップリングが弱く2次元的な秩序に留まる.BEDT-TTF分子にはほとんど影響がなく電子状態への影響は小さい.しかし,80Kでは陰イオンとBEDT-TTFのフラストレーションにより,BEDT-TTFにも配置の変化が起こりon site Coulomb反発U(eff)の程度に影響を与える.この2種類の変化は独立であり,そのいずれもが,これまでの予想とは異なり,BEDT-TTF終端のエチレン基の配向度とは直接関連していない.今回,低温で得られた原子座標と既存の原子座標とを用いてバンド計算をおこない比較した結果,(1)h8体のBr塩を除き,絶縁体から金属まで,低温構造から見積もられるU(eff)/Wで整理され,ダイマーモデルで理解できること,(2)Cl塩とBr塩とではハロゲン原子の置換が80Kの構造変化の有無をひき起こし, 80K以下で2量体化の程度が大きく拡大しU(eff)に差が生ずること,および,(3)d8-Br塩の急冷状態が絶縁体なのはU(eff)の差ではなく,80Kの構造変化が不完全になりダイマー問の移動積分(つまりはバンド幅)が小さくなるためであることがわかった.h8-Brでは,d8-Brの急冷状態とほぼ同じ傾向が観測された.これは徐冷時には金属(11.6K以下で超伝導)になることと一見矛盾するが,発表されているh8体のBr塩の構造データは,温度因子が低温でも大きく,構造的には急冷相であると考えられるので,実はダイマーモデルでも理解可能である.第2の物質系であるθ-(BEDT-TTF)(2)CsCo(SCN)(4)では,金属状態ではBEDT-TTF分子の2量体化がなく,したがって単一の3/4 filledバンドをもち,フェルミ面も常圧では楕円型に近い単純な形状をしている.アニオン中の金属原子を化学置換したものでは金属ー絶縁体転移温度が系統的に増加する.この化学置換により分子間の2面角が変化する結果バンド幅Wが減少することから,絶縁相がMott相であり,低温では2量体が形成されると予想されていた.たしかにθ-(BEDT-TTF)(2)CsCo(SCN)(4)の低温非金属状態では2倍の超格子構造が形成されることが発見されたが,その振幅,相関長から,ダイマーモデルのMott相としての取り扱いは困難であり,むしろ最近接クーロン反発の効果による電荷秩序相と考えた方よいことがわかった.なお,物理的な圧力を加えると,分子2面角θが増加するときに,化学置換の効果と逆にバンド幅Wは増加する.このように,物理圧効果と化学置換効果とは,体積の減少という点では似ているが本質的には異なることが明らかになった.更に10.7kbarの物理的圧力下では,衛星反射の観測により他に類例のない圧力誘起の2k(F)CDWを発見した.これはバンド幅の増大と擬1次元的なフェルミ面の形成の双方に起因するものとして理解される.
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1998
岡山粒子望遠鏡による海面位での大気宇宙線ミューオンの全方位測定
EN
宇宙空間から地球に入射する放射線のことを宇宙線と呼ぶ。この宇宙線は,地球に入射する1次宇宙線とそれが大気圏内の原子核と相互作用して生み出された2次宇宙線との2つに大別される。1次宇宙線は約90%が陽子,9%がα線である。これら1次宇宙線が大気に入射すると大気中の陽子,あるいは中性子と強い相互作用を起し主に多数のπ(パイ)中間子が発生する。そのうち中性のπ(0)は2つのγ線に崩壊し,さらにこのγ線は対生成を起しe(-)(電子)とe(+)(陽電子)を生成する。また電荷を帯びたπ(+),π(-)中間子は,μ粒子(ミューオン)とυμ(ミューオン・ニュートリノ)に崩壊する。μ粒子はレプトンなので大気の核子と強い相互作用はしない。また,μ粒子はe(電子または陽電子)とυe(エレクトロン・ニュートリノ)とυμに崩壊するがπ中間子に比べ寿命が長いため,地表に到達する2次宇宙線の約70%がμ粒子である。1950年代から1980年代にかけてμ粒子の強度,および電荷比の理論的,実験的研究がなされてきた。これによりμ粒子の生成に関与したπ中間子やK中間子の割合を求めることができる。さらに,これから1次宇宙線のエネルギースペクトルや1次宇宙線が大気と相互作用するプロセスを導き出すことができる。また天体宇宙物理学的見地からは,地表にどの程度μ粒子が降り注いでいるかを知っておくことは必要である。最近では,ニュートリノ・フラックスの理論的計算を確かめるためにμ粒子のエネルギースペクトル及び電荷比がきわめて重要な指標となっている。というのは,最近のニュートリノ地下実験の報告によると,地下実験のニュートリノの観測値とニュートリノフラックスの理論計算に大きなずれが生じているためである。この意味においても十分な精度のミューオン強度の地上観測結果が要求される。理論的には全天頂角方向から到来するμ粒子のエネルギースペクトルが計算されているにも関わらず,実験では主に鉛直近辺と大天頂角近辺(75°〜90°)しか報告されていない。これは,巨大なμ粒子観測装置を垂直か水平に設置することは比較的容易であるが,いろいろな方向に向けることは難しいからである。これに対して,任意の方向からのμ粒子を観測できる宇宙線検出器「岡山粒子望遠鏡」の設計,建設,観測を行なった。「岡山粒子望遠鏡j は,サーボ・モータ・システムIこよる経緯儀になっており,コンピュータ制御により任意の方位角,天頂角に検出器を向けることができる。この機能は大気μ粒子の全方位測定に対して非常に有用である。さらに入射荷電粒子の電荷符号の判別,運動量の測定が可能である。本論文では,この「岡山粒子望遠鏡」を用いて天頂角毎の測定と方位角毎の測定を行い,大気μ粒子の全方位測定結果を示した。天頂角0°から81°までから到来するμ粒子を観測し,観測期間1992年から1996年,及び運動量領域1.5GeV/cから250GeV/cのデータを天頂角別に解析し,μ粒子の強度分布,電荷比(charge ratio)を運動量の関数として求めた。天頂角0°から81°まで2°刻み連続的なμ粒子強度分布はこれまで未測定であったが,本論文に示すように中間角度領域ではμ粒子強度に特異性がないことを示した。これによって,これまでに測定された狭い天頂角領域での実験や理論計算の結果を検討することが可能になり,本論文とのよい一致を見た。この一致は,理論の前提が示す全天頂角領域に対し,運動量領域1.5GeV/cから250GeV/cの範囲で,ミューオンがほとんどπ中間子からの崩壊の寄与に依存していること,K中間子の寄与は無視してよいことの恨拠を与えた。このことは1次宇宙線と空気核衝突においてK中間子が関与するような特異な反応は生じていないことを示すとともに,大気ニュートリノ・フラックスを推定する際にπ→ μυμのプロセスのみを扱えばよいことも示している。方位角毎のμ粒子測定に関しては,天頂角5°,20°,40°に対し8方位角方向を観測し,観測期間1997年から1998年までのデータを解析用に採用した。運動量領域に関して2.5GeV/cから3.5GeV/c(低運動量領域),3.5GeV/cから100GeV/c(高運動量領域)までの2領域に分け,電荷別,方位角方向別にこれらのデータを解析した。この結果,低運動量領域において,特定の方位角領域でμ粒子強度が減少した。これは,地磁気の影響のために,特定の方位角方向からのμ粒子の通過距離が延び,μ粒子が電子及び2種のニュートリノに崩壊するためである。大気ニュートリノは,μ粒子の生成(A:μ粒子強度の天頂角依存性),崩壊過程(B:電荷別μ粒子強度の方位角依存性)に1対1に対応するので, μ粒子のフラックスを求めることは,大気ニュートリノ・フラックスを求めることに対応する。このととを確証するために,本論文での解析A,Bからニュートリノエネルギーにして1GeVの,大気電子ニュートリノ,大気反電子ニュートリノ・フラックスを求め,相対変化の割合が数%であることを得た。さらに,海面位で,天頂角5°,1GeVの各々の大気ニュートリノ・フラックス比を求め,電子・反電子ニュートリノ,ミューオン・反ミューオンニュートリノ,ミューオン・電子ニュートリノ比それぞれ,1.23,1.02,2.26を得た。これらの比は,理論的に予想されるもの(それぞれ,1.24,1.04,2.48)に近い値であり,岡山粒子望遠鏡で大気二ユートリノ・フラックスを求めることができることを示した。
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1991
Neurobiological Study of the Reproductive Organs in Crickets (Gryllus bimaculatus)
EN
Kouji
Yasuyama
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1998
EXAFS Study on Local Structure in γ-CuBr and γ-Cul
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1995
Studies on the photoinhibition of photosystem U in chloroplasts Degradation and cross-linking of polypeptides in photosystem U
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1992
遮蔽クーロンポテンシャルの束縛状態に対する相対論的WKB法
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1994
燐酸塩鉱物の結晶構造の生成条件への依存性―それに関連した構造の系統化の研究―
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1999
On the cohomologies of free loop spaces and rational cyclic cohomologies
EN
Toshihiro
Yamaguchi
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1992
LASER MICROPROBE ANALYSIS OF CARBON DIOXIDE AND WATER IN GLASS INCLUSION: AN ATTEMPT TO DETERMINE THEIR CONCENTRATIONS IN PRE-ERUPTIVE MAGMA
EN
Genji
Saito
Volatile materials dissolved in magmlas play an important role in the evolution of magmas and volcanic eruptions. During magma ascent, the magma may be saturated with the volatiles because of decrease in solubilities of the volatiles in silicate melts with pressure. Formation of a gas phase would lead to decrease in the bulk density of magma and thereby accelerate the magma ascent. Expansion of the resulting gas phase may induce a volcanic eruption. The major volatile components in a nlagma are H(2)0, C0(2), S and Cl. Glass inclusions in phenocrysts are the most suitable samples for measuring volatile concentrations in pre-eruptive magmas. However, it has been difficult to measure the H(2)0 and CO(2) concentrations in glass inclusions, mainly because the size of the glass inclusions is very small (50-200 μm) and the sensitivity of analytical methods is not sufficient. In this study, we have developed a laser microprobe technique for determining a minute amount of H(2)0 and C0(2) dissolved in glass inclusions. The analytical system consisting of a Nd-YAG laser for selective heating of glass inclusions and a gas chromatograph-mass spectrometer for measuring a micro quantity of H(2)0 and C0(2) dissolved in glass inclusions. The H(2)0 and C0(2) were extracted from glass inclusions by laser heating under a vacuum. The extracted gas was collected in a cold trap and then introduced to GCMS by carrier gas. Gas concentration was calculated from the absolute amount of the extracted gas and the mass of glass melted. The optimum working conditions (lamp current, pulse frequency and shooting duration) of laser extraction were decided using a basaltic glass sample. A glass sample ground to less than 100 μm thick was pierced by a laser beam and measured for diameter of the hole produced to obtain the accurate determination of the volume of the glass melted. The mass of the melted glass was calculated from its volume and density. Efforts were made for reduction of background level of C0(2) and H(2)0. High purity helium carrier gas was farther purified with cold traps to remove C0(2) and H(2)0 contained in the carrier gas. Analytical line was thoroughly baked out at 300℃ before the analyses. With these procedures, the blank C0(2) was reduced to less than 0.07 ng and the blank H(2)0 to less than 6 ng. The detection limit of the present system was found to be 0.15 ng C0(2) and 15 ng H(2)0, considering the confidence limit of the calibration. The repeated analyses of C0(2) in basaltic glass indicate that the present technique allows us to analyze C0(2) concentration of glass inclusions as small as 70 μm in diameter within an accuracy of ±60 ppm, assuming that the glass inclusion contains 300 ppm C0(2). The H(2)0 analyses of the glass by the present technique gave significantly lower H(2)0 concentration than the bulk analysis, suggesting incomplete degassing of H(2)0 from molten glass during laser irradiation due probably to its slow diffusion rate. The glass inclusion samples from Killauea volcano, Hawaii, and Izu-Oshima volcano, Japan, were analyzed to determine CO(2) concentrations of pre-eruptive magma. The C0(2) concentration of pre-eruptive magma in South-West Rift Zone of Kilauea volcano was 230 ppm. This suggests that the magma has been significantly degassed during its storage in the summit magma chamber and migration to the rift system. The depth of the magma chamber was estimated to be 2.8-4.0 km from the C0(2) concentration of the pre-eruptive magma, in good agreement with the geophysical estimation. Comparison of the volatile budget of Kilauea volcano based on the C0(2) analysis of glass inclusion with the observed C0(2) flux suggests that parental magma contains 3000 ppm C0(2). The bulk density of magma containing exsolved gases is not snlall enough to ascend to the surface by its own buoyancy. This is consistent with the present settings of the Kilauean magma; the sumrnit magma chamber and rift magma system extending from the summit caldera. The C0(2) concentration of pre-eruptive magma of Izu-Oshima volcano was found to be 1 70 ppm. The measured C0(2) concentration indicates that the magma chamber exists at a depth of about 2 km beneath the volcano. At this depth, the magma should be saturated with C0(2). The estimated bulk densities of the magma (d=2.4-2.6 g/c㎥) containing C0(2)-rich gas phase are consistent with the density structure of the volcano, if the magma before degassing contains C0(2) more than 1700 ppm. The rate of magma supply was estimated from the C0(2) concentration of pre-eruptive magma and C0(2) fluxes based on measurements on surface volcanic gases. Assuming the primary magma contains 2500 ppm C0(2), the estimated rate of magma supply(6-19x 10(3) tons/day) is compatible with the observed rate of magma supply based on the total mass of ejecta of major eruptions during the last 1500 years.
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1992
Neurophysiological study of the cercus-to-giant interneuron system in the cricket.
EN
Kiyonori
Hirota
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1999
銅イオン交換したhigh-silicaゼオライトの気体吸着特性と銅イオン種の状態
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1996
Structure of finite rings and certain infinite rings with prime-power characteristic
EN
Takao
Sumiyama
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1996
磁場破壊による量子干渉と相転移現象
EN
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1999
3d遷移金属化合物の電子状態に関するX線分光学的研究
EN
3d遷移金属(3d-TM)化合物におけるK-吸収端のX線近吸収端構造(XANES)およびX線磁気円二色性(XMCD)を利用して3d-TMの電子状態および磁気状態について調べた.このX線吸収分光法の特長を活かすことによって,3d-TM化合物の多様な磁気的性質を電子状態の観点から考察した.3d-TMイオンおよび配位子を変化させたときの3d-TMおよび酸素のK-吸収端XANESスペクトルの系統的な変化から,吸収端近傍の構造はTMイオンの3d電子状態を強く反映していることを見出した.スピネル型フェライトMFe(2)0(4)(M=Cr〜Cu)におけるXMCDの系統的な変化から,サイトによる寄与を分離した.また,金属性Fe化合物のXMCDでは配位子からの電荷移動によるFeの電子配置の変化を議論した.さらに,K-吸収端に対する磁気光学総和則の適用によって,4p軌道磁気モーメントを求め,酸化物と金属性化合物では互いに反対符号を持つことが明らになった.XMCDスペクトル中に観測される多電子励起(MEE)シグナルに対する系統的な変化から,MEEの特徴を捉えることによってその機構の解明を行った.エネルギー位置,強度,幅等の特徴からshake-up過程に付随する3p→4p単極遷移は否定され,終状態が(1s)(1)(3p)(5)(3d)(n+2)で表されるsuper Coster-Kronig遷移であることを提案し,実験的にそれを立証した.X線吸収分光法を利用して電子状態を議論するためには,エネルギ一分解能および統計精度の点で第三世代放射光の利用が適している.そこでSPring-8 BL39XUにおいて透過型移相子とピエゾ素子およびロックイン検出法の組み合わせによる「偏光変調法」XMCD測定を確立した.エネルギー分解能および統計精度に格段の向上が得られ, XMCDスペクトルに新たな微細構造が観測された.これによって,電子状態や磁気状態の詳細を議論することが可能となる.
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
2001
TLスタック検出器による nuclearite の探索
EN
これまでに使われていない実験装置、熱ルミネッセンス(TL)シートと医療用X線フィルムを使ったnuclearite検出器(TLスタック検出器)の研究開発を行い、それを用いてnucleariteを探索した。TLシートのnucleariteに対する感度は2.3×10(-4)≤β≤6.6×10(-3)のイオン実験データを基に推定した。この際、入射粒子のエネルギー損失を直接のパラメーターとせず、入射粒子によってTLシートにどのような形でエネルギーが蓄積されるかを考慮した。この結果、低速領域でよりロバストな推定値が得られた。nuclearite探索は、イタリア、グランサッソー地下研究所にTLスタック検出器を設置して行った。稀にしか起こらないと予想される事象を探索する実験ではバックグラウンド事象の評価が重要である。地下実験におけるnuclearite事象のバックグラウンドとして、自然放射性物質および高エネルギーミューオン反応を検討した結果、これらが偽のnuclearite事象を起こす確率は無視できるほど小さいものであるとわかった。平均約994日の間設置されていた6.6uのTLスタック検出器を解析した結果、nuclearite事象は見出されなかった。これによりグランサッソー岩石中のエネルギー損失を無視できるような質量および速度の下向きnucleariteフラックスに対する90%信頼水準の上限値、1.3×10(-13) cm(-2)s(-1)sr(-1)(等方的フラックスに対しては6.4×10(-14) cm(-2)s(-1)sr(-1)が得られた。本研究で得られたnucIeariteフラックスの上限値はこれまでに他の実験グループによって得られた値と比べて最も小さいものではないが、ダークマター候補としてのnucleariteフラックスの上限値として十分有意なものである。そしてこれは熱ルミネッセンスシートの蛍光、燐光によって医療用X線フィルムを感光させるという実験技術によって得られた初めての結果であり、本研究は我々の銀河のnucleariteフラックスの上限値をより信頼できるものにしたと結論できる。
No potential conflict of interest relevant to this article was reported.
Acta Medica Okayama
1994
STUDIES ON TRANSPORT OF THE NUCLEUS-ENCODED 30 kDa PROTEIN OF PHOTOSYSTEM U INTO EUGLENA CHLOROPLASTS
EN
Junko
Inagaki
No potential conflict of interest relevant to this article was reported.