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"subitem_description_type": "Other"}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "はじめに:ヒトの生体が決定論的カオスであることが多くの研究によって示されているが,ヒトの胎児と母では明らかになっていない.方法:4人の母とその胎児を対象に妊娠11週から36週まで,超音波ドップラー法で母児の心音を同時測定し,カオス解析を行った.Random shuffle,Fourier shuffle Period-shuffleのサロゲートを行い,母児のデータのランダム性を検証した.最大リアプノフ指数(λ\u003csub\u003e1\u003c/sub\u003e)の計算,アトラクターの抽出を行った.結果:相関次元は5次元であった.3種のサロゲート法すべてにおいて母児データのランダム性が棄却された.母児のλ\u003csub\u003e1\u003c/sub\u003eは正であり,両者のアトラクターが抽出できた.これらのことから胎児と母は決定論的カオスであることが示された.考察:本結果は妊娠初期から後期にわたって胎児と母が決定論的カオスであり,非線形相互作用する自己組織化能力を備えていることを明らかにした.", "subitem_description_type": "Abstract"}]}, "item_10001_description_6": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "INTRODUCTION:Many studies have shown that human organs are a deterministic chaos. However, it remains unclear whether this is true for the human fetus and mother. We aimed to clarify whether the fetus and mother are a deterministic chaos or not. METHODS:We measured heart sounds of four human fetuses and their mothers during 11th-36th week of gestation using an ultrasonic Doppler apparatus. We investigated non-linearity of the data using the surrogate method. Data modified by three surrogate methods:Random shuffle, Fourier shuffle and Period-shuffle, were used in the study. We conducted a chaotic analysis to recognize the largest Lyapunov exponents(λ\u003csub\u003e1\u003c/sub\u003e)and the attractor. RESULTS:The result of calculation of correlation dimension is five. λ\u003csub\u003e1\u003c/sub\u003e of the original data was significantly different from that of each surrogate data. Fetuses and mothers showed positive λ\u003csub\u003e1\u003c/sub\u003e from 11th to 36th week of gestation. Moreover, the attracters were clearly recognized for fetuses and mothers. The results indicate these data deterministic chaos with nonlinear dynamics. 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胎児と母は決定論的カオスである : サロゲート法による解析
https://jrckicn.repo.nii.ac.jp/records/757
https://jrckicn.repo.nii.ac.jp/records/757ff339978-cee3-47eb-8605-2d098160dd2e
名前 / ファイル | ライセンス | アクション |
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本文 (330.9 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-05 | |||||
タイトル | ||||||
タイトル | 胎児と母は決定論的カオスである : サロゲート法による解析 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Fetus and mother are a deterministic chaos : Analysis of surrogate data method | |||||
タイトルのヨミ | ||||||
その他のタイトル | タイジ ト ハハ ハ ケッテイロンテキ カオス デ アル : サロゲートホウ ニ ヨル カイセキ | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 胎児と母 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 決定論的カオス | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 自己組織化 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | サロゲート法 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | fetus and mother | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | deterministic chaos | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | self-organization | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | surrogate data method | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
石山, さゆり
× 石山, さゆり× 岩永, 浩明× 田原, 孝× 清岡, 佳子× 大橋, 一友 |
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抄録 | ||||||
内容記述 | はじめに:ヒトの生体が決定論的カオスであることが多くの研究によって示されているが,ヒトの胎児と母では明らかになっていない.方法:4人の母とその胎児を対象に妊娠11週から36週まで,超音波ドップラー法で母児の心音を同時測定し,カオス解析を行った.Random shuffle,Fourier shuffle Period-shuffleのサロゲートを行い,母児のデータのランダム性を検証した.最大リアプノフ指数(λ<sub>1</sub>)の計算,アトラクターの抽出を行った.結果:相関次元は5次元であった.3種のサロゲート法すべてにおいて母児データのランダム性が棄却された.母児のλ<sub>1</sub>は正であり,両者のアトラクターが抽出できた.これらのことから胎児と母は決定論的カオスであることが示された.考察:本結果は妊娠初期から後期にわたって胎児と母が決定論的カオスであり,非線形相互作用する自己組織化能力を備えていることを明らかにした. | |||||
内容記述 | ||||||
内容記述 | INTRODUCTION:Many studies have shown that human organs are a deterministic chaos. However, it remains unclear whether this is true for the human fetus and mother. We aimed to clarify whether the fetus and mother are a deterministic chaos or not. METHODS:We measured heart sounds of four human fetuses and their mothers during 11th-36th week of gestation using an ultrasonic Doppler apparatus. We investigated non-linearity of the data using the surrogate method. Data modified by three surrogate methods:Random shuffle, Fourier shuffle and Period-shuffle, were used in the study. We conducted a chaotic analysis to recognize the largest Lyapunov exponents(λ<sub>1</sub>)and the attractor. RESULTS:The result of calculation of correlation dimension is five. λ<sub>1</sub> of the original data was significantly different from that of each surrogate data. Fetuses and mothers showed positive λ<sub>1</sub> from 11th to 36th week of gestation. Moreover, the attracters were clearly recognized for fetuses and mothers. The results indicate these data deterministic chaos with nonlinear dynamics. DISCUSSION:These results indicate that fetus and mother are a deterministic chaos, and that fetus and mother showed the self-organization ability to interact nonlinearly. | |||||
書誌情報 |
看護理工学会誌 en : Journal of Nursing Science and Engineering 巻 5, 号 1, p. 74-79, 発行日 2018 |
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出版者 | ||||||
出版者 | 看護理工学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2188-4323 | |||||
論文ID(NAID) | ||||||
内容記述 | http://ci.nii.ac.jp/naid/130006330055 | |||||
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関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.24462/jnse.5.1_74 | |||||
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権利情報 | ©2018 看護理工学会 | |||||
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権利情報 | 本文データは学協会の許諾に基づきJ-STAGEから複製したものである | |||||
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識別子タイプ | URI | |||||
関連識別子 | http://nse.umin.jp/ | |||||
関連名称 | 看護理工学会 | |||||
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識別子タイプ | URI | |||||
関連識別子 | https://www.jstage.jst.go.jp/browse/jnse/-char/ja | |||||
関連名称 | 看護理工学会誌(J-STAGE) | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.24462/jnse.5.1_74 | |||||
関連名称 | J-STAGE公開論文 | |||||
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関連名称 | isIdenticalTo:https://doi.org/10.24462/jnse.5.1_74 | |||||
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内容記述 | application/pdf | |||||
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出版タイプ | VoR |