著者

大森 博雄

出版者

公益社団法人 日本地理学会

雑誌

地理学評論 Series A (ISSN:18834388)

巻号頁・発行日

vol.93, no.1, pp.50-51, 2020-01-01 (Released:2023-02-19)

著者

上松 弘明 森 博愛

出版者

一般社団法人 日本生体医工学会

雑誌

医用電子と生体工学 (ISSN:00213292)

巻号頁・発行日

vol.11, no.2, pp.78-85, 1973-04-30 (Released:2011-07-05)

参考文献数

8

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Validity of Fourier coefficients as parameters for the electrocardiographic pattern recognition by means of the threshold logic units and the maximum likelihood method was verified. As the traditional methods of Fourier transform required much time, a new method of fast Fourier transform of folding type, which differed from FFT of Cooley and Tukey, was developed. Sampling points used in the present investigations totaled 100. Using scalar ECG of Frank's orthogonal system (X, Y and Z leads) 15 normal subjects, myocardial infarction cases and ostium secundum type of atrial septal defect cases respectively were analyzed by this new method, and the coefficients such as An, Bn, √An2+Bn2 and Arctan (An/Bn) were obtained.√An2+Bn2 was considered as the most useful parameter among them, because it is invariant for the parallel shift of amplitude and time axis.Normals, myocardial infarction and atrial septal defect cases were classified, in 100 per cent success, by threshold logic units and maximum likelihood method in the twelve dimensional information space, respectively using the initial four Fourier coefficients of the X, Y and Z leads as parameters.Fourier coefficient parameters were estimated by t-tests, and then the effort was made to reduce the numbers of parameters of information space.Complete separation was also obtained even when the number of dimension were reduced to seven by using the initial seven Fourier coefficients of X lead alone. This suggested that the important diagnostic information was mostly contained in X lead, and also that the lower harmonic components had the greater part of the information of ECG. Nonlinear discriminant function played an important role in the low dimensional information space.

著者

川森 博司

出版者

国立歴史民俗博物館

雑誌

国立歴史民俗博物館研究報告 (ISSN:02867400)

巻号頁・発行日

no.32, pp.p1-21, 1991-03

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The two main topics of Japanese folktales are marriage and fortune-making. This thesis analyzes the latter type of folktales in an attempt to reveal the spirit of people who lived in a typical Japanese village community to hand down these pieces of folktales.Significant among the type of fortune-making folktales are stories characterized by antagonism between I-the main character who makes a fortune and II-another character who fails to make a fortune. The antagonism is expressed in various combinations of conflicting parties such as a man and his wife, a man and his neighbor, or a man and his real brother or stepbrother, among which the preferred one in Japan is that of a man and his neighbor.In the Amami and Okinawa islands, however, a type of antagonism between 'a man and his brother' appears in a high ratio depending on some kinds of stories. Detailed analysis of folktales in the Amami and Okinawa islands is expected to identify the difference from folktales in the main land of Japan so that the nature of antagonism between characters in Japanese folktales may be better understood.The Japanese features may also be more clearly understood by comparing her folktales with that of other nations to reveal their similarities and differences. For example, in Korea, a type of antagonism between 'a man and his brother' appears more frequently in their folktales. More careful comparison, however, requires a classified collection of materials from various countries, based on which international comparison should be made.The fact that a type of antagonism between 'a man and his neighbor' is the preferred type in Japanese folktales indicates that the relationship with neighbors was of main concern to people in a typical Japanese village community. Folktales provide valuable resources for investigating their inner world.

著者

森 博

出版者

日本社会学会

雑誌

社会学評論 (ISSN:00215414)

巻号頁・発行日

vol.11, no.3, pp.93-99, 1961-05-30

著者

吉田 英嗣 須貝 俊彦 大森 博雄

出版者

日本第四紀学会

雑誌

第四紀研究 = The Quaternary research (ISSN:04182642)

巻号頁・発行日

vol.49, no.2, pp.55-67, 2010-04-01

被引用文献数

1 8

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火山麓に分布する流れ山は,大規模山体崩壊が過去に発生した証拠として,また,岩屑なだれのメカニズムを推察するうえで,重要な研究対象とされてきた.本研究では,流れ山地形がなお崩壊や岩屑なだれに関して地形学的に重要な情報を提供してくれるものと捉え,岩屑なだれの流下方向における流れ山の分布様式を検討し,流れ山地形に新たな地形学的意義を与えることを試みた.研究対象は,日本における4つの岩屑なだれが形成した流れ山であり,これら岩屑なだれは山麓に拡散した典型例とみなされる.空中写真判読により抽出した流れ山の数は,尻別火山の172,有珠火山の262,岩木火山の200,那須火山の643であり,GISを用いて流れ山の形態データを取得した.<BR>いずれの事例も,流れ山地形は山麓の下部斜面から平地にかけて緩やかな斜面として存在する.そして,流れ山のサイズは下流方向に減少する傾向が認められる.この減少傾向は,流れ山のサイズと給源からの距離との回帰分析によれば,指数関数で近似しうる.まず,回帰関数は,距離ゼロ(給源)における流れ山のサイズが崩壊の体積に規定されていることを示している.すなわち,崩壊の規模に応じて,崩壊部に発生する初期段階での割れ目の大きさが決まるらしい.他方,流れ山のサイズの減少割合は,等価摩擦係数の逆数で示されるような岩屑なだれの流動性に規定されていると考えられる.換言すれば,流動性の小さい岩屑なだれでは流れ山が急速に縮小するのに対し,大きい岩屑なだれでは緩やかである.以上の検討により,流れ山のサイズと給源からの距離との関係は,火山体ならびに岩屑なだれの流動特性を反映していることが明らかとなった.

著者

三反畑 修 綿田 辰吾 佐竹 健治 金森 博雄 Luis Rivera Zhongwen Zhan

出版者

特定非営利活動法人 日本火山学会

雑誌

日本火山学会講演予稿集 (ISSN:24335320)

巻号頁・発行日

vol.2020, pp.6, 2020

著者

岡森 博和 柳本 朋子 本間 俊宏 西谷 泉 金谷 博史

出版者

大阪教育大学

雑誌

大阪教育大学紀要 (0xF9C5)教科教育 05 教科教育 (ISSN:03893480)

巻号頁・発行日

vol.33, no.2, pp.p131-148, 1984-12

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第2報では,数学教育におけるコンピュータ・プログラミング,とくにLOGO言語による指導について,小学校・中学校・高等学校での実践を通して,その可能性と方向について論じた。この小論では,小学校における図形教育の中でのLOGO言語の活用,とくに子どもにとって価値のある作業-天守閣の測量・カブトの作成・万華鏡模様の作成-の中での実践を通して,子どもの学習へのかかわり方について考察する。

著者

川森 博司

出版者

観光学術学会

雑誌

観光学評論 (ISSN:21876649)

巻号頁・発行日

vol.2, no.1, pp.87-89, 2014 (Released:2020-01-13)

著者

森 博子 岡田 洋右 田中 良哉

出版者

学校法人 産業医科大学

雑誌

Journal of UOEH (ISSN:0387821X)

巻号頁・発行日

vol.34, no.4, pp.323-329, 2012-12-01 (Released:2013-02-28)

参考文献数

25

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ビタミンD欠乏症は骨粗鬆症,骨折の原因のみならず,近年では2型糖尿病や心血管疾患,高血圧,癌,感染,自己免疫疾患などの発症リスクを上昇させると報告されている.日光曝露不足や食事からのビタミンD摂取不足が,ビタミンD欠乏症に繋がっており,特に女性においてビタミンD欠乏症は,よくみられる病態と考えられる.女性が長く健康で働きつづけるためには,様々な疾患との関連が報告されているそれらの病態の上流に位置するビタミンDは極めて重要な因子である.

著者

小森 博司 高橋 基信 瀧澤 俊臣

出版者

日経BP社

雑誌

日経Windowsプロ (ISSN:13468308)

巻号頁・発行日

no.67, pp.97-101, 2002-10

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Service Pack(SP)2を適用したWindows 2000 ServerのActive Directory(AD)で,セキュリティのため,ログオンに3回失敗した場合にアカウントをロックアウトしています。ところが,「アカウントがロックアウトされたので解除してほしい」という連絡をユーザーから受けても,管理ツールの「Active Directoryユーザーとコンピュータ」で確認すると,そのアカウントがロックアウトさ…

著者

森 博康 徳田 泰伸

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.70, no.3, pp.207-218, 2021-06-01 (Released:2021-05-13)

参考文献数

26

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To evaluate the effectiveness of a 24-week nutritional supplementation program involving whey protein intake after resistance exercise in treatment of sarcopenia and quality of life (QOL) among older women with sarcopenia, we carried out a pilot study, randomized controlled trial among elderly individuals with sarcopenia, aged 65-years or older, who were allocated to three groups: exercise and whey protein supplementation (Ex+Whey) group, exercise (Ex) group, and whey protein supplementation (Whey) group. Sarcopenia was defined using the Asian Working Group for sarcopenia 2014 criteria, as follows: low hand-grip strength (<18.0 kg) or slow gait speed (<0.8m/sec), and low skeletal muscle mass index (SMI, <5.7kg/m2). A 24-week program of resistance exercise, carried out twice per week, was combined with whey protein supplementation, involving 11.0 g of protein and 2,300 mg of leucine. After the 24-week intervention period, the Ex+Whey group (n=20) showed a decrease in sarcopenia, lower SMI, lower grip strength, and increase in physical QOL score (sarcopenia; p=0.004, SMI and grip strength; p=0.008, QOL; p=0.027). After the 24-week intervention period, the Whey group (n=20) showed a decrease in sarcopenia and lower SMI (all p=0.017). The Ex-group (n=19) did not show a decrease in sarcopenia, lower SMI, and lower grip strength. These results suggest that resistance exercise and whey protein intake in older women with sarcopenia, on the multiple outcome measures such as improves lower SMI, lower grip strength, and physical QOL. However, there were no between-group differences in the change from the pre- to the post-intervention period at 24 weeks in the lower SMI and lower grip strength. In this study, the intervention effect of Ex+Whey could not be clearly shown in the outcome measures.

著者

星合 和基 金澤 毅 平沼 謙二 太田 功 福井 壽男 森 博史 長谷川 明

出版者

社団法人日本補綴歯科学会

雑誌

日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society (ISSN:03895386)

巻号頁・発行日

vol.39, no.3, pp.494-500, 1995-06-01

参考文献数

21

被引用文献数

9 2

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この研究は色調の安定性を改善した常温重合レジンについて検討したもので,レジン中の触媒にバルビツール酸誘導体と4級アンモニウム塩を用いたものである.このレジンの色調,物性,適合度について現在市販されている各種の常温重合レジンと比較検討したものである.その結果をみると,1.色調は安定し,変色はみられない,2.機械的強さはほぼ同程度である,3.適合性は優れていることが示されたので,臨床上有用な新しい常温重合レジンといえよう.

著者

中元 隆明 飯塚 昌彦 Okamoto Shingo 桃木 茂 原澤 寛 加藤 士郎 長谷 達也 久我 英世 大野 邦彦 森 博美 斎藤 浩一

出版者

社団法人 日本呼吸器学会

雑誌

日本胸部疾患学会雑誌 (ISSN:03011542)

巻号頁・発行日

vol.35, no.2, pp.144-153, 1997

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SpO₂データを心電図と同時に24時間ホルター記録・再生出来る装置を開発し, 本装置の有用性につき健常者10例 (N群) で検討し (研究1), これを用いてN群及び慢性肺疾患患者7例 (CPD群) で低酸素血症と不整脈との関係につき検討した (研究2). 研究1: SpO₂・心電図ホルターは携帯用ホルター装置 (SM50) を使用, 第1, 2chに心電図, 第3chにSpO₂のデータを各々入力した. すなわちSpO₂測定用センサ (D・25) を全対象例の第4指か第5指に装着し, パルスオキシメーター (MicrO2) で入手したSpO₂データをディジタルコード化してホルター記録器に入力し, 心電図と同時に記録した. データの解析はホルター解析装置 (DMW-9000H) で行った. 又, ノイズエラーを自動的に削除する解析プログラムを考案, 作成した. 研究2: N群では24時間SpO₂は90%以上を維持した. CPD群では全例, 夜間あるいは15分間歩行後にSpO₂が90%以下を示した. 不整脈のうち一過性心房性頻拍 (TAT) はCPD 7例中3例で認められ, SpO₂を低下させた. 心室性期外収縮の単発と2連発 (Ve) の全心拍数に対する発生率はN群に比して多かった (1.21±0.89 vs 0.6±0.3%, p<0.05) が, SpO₂は低下しなかった. 本システムは外来及び在宅患者において呼吸不全と不整脈の診断を同時に評価可能であり, さらにCPDにおける desaturation の発現はTATを誘発する事が示唆される.

著者

大森 博雄

出版者

Japan Association for Quaternary Research

雑誌

第四紀研究 (ISSN:04182642)

巻号頁・発行日

vol.14, no.2, pp.63-76, 1975-06-30 (Released:2009-08-21)

参考文献数

11

被引用文献数

3 1

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Erosional low-relief surfaces on the mountains of the Oshima Peninsula are divided into two levels. The higher surface is called the Matsumae surface and the lower one is called the Kikonai surface in the Matsumae Peninsula of the southern part of the Oshima Peninsula. Coastal terraces spread below and around these erosional low-relief surfaces. The Esashi district is one of the areas where coastal terraces are typically developed in the Oshima Peninsula. The author discussed the physiographic development and the crustal movement of the Esashi district.The coastal terraces in the Esashi district are classified into five surfaces as follows:Esashi surface (Pleistocene); 340-140m a. s. l., 1500m wide.Oyama surface (Pleistocene); 170-80m a. s. l., 2000m wide.Ohma surface (Pleistocene); 80-40m a. s. l., 500m wide.Jinya surface (Pleistocene); 45-20m a. s. l., 250m wide.Kitamura surface (Holocene); 12-8m a. s. l., 100m wide.The Esashi surface is presumed to have been formed by the transgression over the Kikonai surface which was the lower erosional low-relief surface.The Oyama surface is the widest marine erosional surface in the Esashi district. This terrace was formed by the transgression over the Esashi surface which was gently sloping toward the sea.The Ohma surface was formed by the transgression with larger than 20m rise of the sea level. The coast at that time, however, was a ria coast.The Jinya surface was formed about 30, 000 years B.P. At that time, the rise of the sea level was larger than 7m. It is suggested that the minor transgression took place at the Würm interstade about 30, 000 years B.P.The Kitamura surface was built by the Postglacial transgression with larger than 50m rise of the sea level. A part of the Kitamura surface is presumed to be a marine terrace formed by a minor transgression about 3, 000 years B.P.From the height of the old shorelines of these terraces, the crustal movement of the tilting toward the north in the area of Palaeozoic sedimentary rocks, the warping in the area of Miocene sedimentary rocks in the Esashi Hill of the northern part of the Amano River and the tilting toward the south in the Kaminokuni Hill of the southern part of the Amano River are recognized. The crustal movement is presumed to become relatively active after the period between the formation of the Oyama terrace and that of the Ohma terrace.

著者

森 博行

出版者

大阪大谷大学志学会

雑誌

大阪大谷大学紀要 (ISSN:18821235)

巻号頁・発行日

vol.46, pp.1-15, 2012-02

著者

三反畑 修 綿田 辰吾 佐竹 健治 金森 博雄 Rivera Luis Zhan Zhongwen

雑誌

JpGU-AGU Joint Meeting 2020

巻号頁・発行日

2020-03-13

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1. IntroductionAnomalous volcanic earthquakes repeatedly occurred about once every decade at submarine calderas near Torishima Island in Japan (Torishima earthquakes) [e.g. Fukao et al., 2018, Sci. Adv.] and near Curtis Island in New Zealand [Sandanbata et al., 2019, JpGU]. Despite their moderate seismic magnitudes Mw 5-6, the earthquakes generated disproportionately large tsunamis. Their moment tensors were dominated by non-double-couple (NDC) components. Considering their volcanic origin and efficient tsunami excitation, they are called as volcanic tsunami earthquakes. The mechanism of these events remains unresolved. Here, we present an overview of this project to determine the physical mechanism and characteristic features of these events. The details of kinematic source modeling will be presented by Sandanbata et al. in "Tsunami and tsunami forecast (H-DS08)" session.2. Physical mechanism inferred from kinematic source modelFrom the analyses of tsunamis and long-period seismic waves, we successfully constructed a kinematic source model of the 2015 Torishima earthquake (Fig.a). This model can explain quantitatively both tsunami and long-period seismic waves. The model consists of thrust slip on inwardly down-dipping ring faults extending partially along the rim and asymmetric opening and closing of a sub-caldera horizontal fault (Fig.b). In this model, thrust slip on a partial ring fault is caused by highly-pressurized magma inside a sill-like chamber below the caldera floor. This mechanism is similar to the trapdoor faulting observed geodetically at Sierra Negra caldera, Galápagos [e.g. Jónsson, 2009, Tectonophysics].3. Characteristic properties of long-period seismic excitationsWe next examine their long-period seismic excitations from this source. It is generally known from seismic excitation theory that the moment tensor components, Mrt and Mrp, and the volumetric change of a sill-like chamber at a shallow depth do not significantly contribute to seismic excitation [e.g. Kanamori & Given, 1981, PEPI]. In addition, the ring-fault slip partially eliminates its long-period seismic radiation due to cancellation of excitations from double-couple (DC) components from different portions of the ring fault [Ekström, 1994, EPSL]. These properties not only explain the NDC-type moment tensors of these events but also play an important role in the tsunami earthquake natures. The curved fault geometry focusing deformation just over the caldera also amplifies tsunamis.We demonstrate that the observable moment tensor components (other than Mrt and Mrp) reflect source geometries, arc length and orientation of the ring faults. The similarities of the observable source parameters of most of the recurrent volcanic tsunami earthquakes suggest that the trapdoor faulting repeated at an identical ring-fault geometry every decade. This implies that magma recharges into a shallow sub-caldera chamber, which leads to ring-fault ruptures repeating at least for the decades.4. ConclusionsWe propose a physical mechanism of volcanic tsunami earthquakes by constructing their kinematic source models. A similar mechanism is also suggested for the 2017 Curtis earthquake, although we do not refer to the details here. Our model provides new and first evidences of trapdoor faulting at submarine calderas. We also demonstrate that we can study remote active submarine volcanoes using far-field observations of tsunamis and long-period seismic waves from Mw 5-6 earthquakes.

著者

三反畑 修 綿田 辰吾 佐竹 健治 金森 博雄 Rivera Luis Zhan Zhongwen

雑誌

JpGU-AGU Joint Meeting 2020

巻号頁・発行日

2020-03-13

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1. IntroductionAlmost every decade, volcanic tsunami earthquakes occurred at a submarine volcano named Smith Caldera near Torishima Island in Japan (Torishima earthquakes). These earthquakes generated disproportionately large tsunamis for their seismic magnitudes (Mw 5-6) [e.g. Fukao et al., 2018, Sci. Adv.]. In order to determine their physical mechanism, we constructed a kinematic source model based on analyses of tsunamis and long-period seismic waves. Here, we present the detail of kinematic source modeling of the 2015 Torishima earthquake. The overview of the project, including the physical mechanism, characteristic seismic properties, causes of tsunami earthquake nature and similarities of recurrent earthquakes, will be presented by Sandanbata et al. in "Active Volcanism (S-VC45)" session.2. Hypothetical fault systems inferred from initial sea-surface displacementWe started the kinematic source modeling of the 2015 Torishima earthquake by estimating the initial sea-surface displacement around Smith Caldera by the tsunami waveform inversion. We used tsunami waveforms recorded at ocean-bottom pressure gauges deployed in the southern oceanic region of Japan, such as a temporary array [Fukao et al., 2018], DONET, the Deep Sea Floor Observatory off Muroto Cape, and the DART system. We found (1) a large uplift concentrated just over the caldera floor, and (2) clear peripheral subsidence at least along the northern side of the rim structure.Based on the results, we hypothesized a sub-caldera fault system composed of ring and horizontal faults (Fig.a). In the following sections, we examine whether the hypothetical fault system explains both tsunami and long-period seismic records. We also investigate the detailed fault geometries employing multiple fault models with variable fault parameters (i.e. depth of the horizontal fault, dip angle and length of the ring fault).3. Inversion of tsunami waveforms for slip distributions of sub-caldera ring and horizontal faultsWe determined slip distributions on the sub-caldera ring and horizontal faults from the tsunami records by applying a new efficient technique for computing tsunami Green's functions from subfault slips. In most cases, inverted slip distributions consist of thrust slip on an inward-dipping ring fault and asymmetric opening and closing of a horizontal fault (Fig.a).The slip distributions on the multiple fault models accurately reproduce the tsunami records (Fig.b), indicating that these are plausible models for explaining tsunami excitation of the Torishima earthquake. However, if the ring fault extends to a horizontal fault lying at a depth of about 4 km below the caldera floor, slip direction of the ring fault becomes opposite between the upper and lower half portions, which we consider unrealistic. Hence, we believe that the horizontal fault lies at a shallower depth of approximately 2 km.4. Forward modeling of long-period seismic waves from slip distributionsFinally, we investigated the plausibility of the slip models by comparing long-period seismic records at the F-net and GSN stations with their synthetic waveforms. Among the slip models, one with a ring fault with a 75° dip angle extending along an approximately three-quarter portion of the rim structure can best reproduce the observed long-period seismic waves (Fig.c). The waveforms of horizontal components and overall amplitude are sensitive to dip angle and length of the ring fault, respectively. This helps us to constrain the detailed fault parameters well.5. ConclusionWe concluded that the slip model thus obtained can explain quantitatively both tsunami and long-period seismic records, and is a good kinematic source model of the 2015 Torishima volcanic tsunami earthquake. The source model consists of thrust slip on inwardly down-dipping ring fault extending partially along the rim and asymmetric opening and closing of a sub-caldera horizontal fault is attributed to the trapdoor faulting at the active submarine caldera.

著者

大森 博雄 柳町 治

出版者

Japan Association for Quaternary Research

雑誌

第四紀研究 (ISSN:04182642)

巻号頁・発行日

vol.30, no.1, pp.1-18, 1991-02-28 (Released:2009-08-21)

参考文献数

24

被引用文献数

1 1

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The subalpine zones on the mountains south of the Tohoku mountains in the Japanese Islands are normally occupied by coniferous forests dominated by Abies mariesii, A. veitchii, Picea jezoensis var. hondoensis and Tsuga diversifolia. But there are many mountains where the subalpine coniferous forest does not exist; the thermometrical subalpine zones on such mountains are replaced by subalpine and/or montane deciduous broad-leaved forests. Especially in the Tohoku mountains, the subalpine zone without A. mariesii forest is called the “pseudo-alpine zone”, where Quercus scrub usually dominates. The origin of the pseudo-alpine zone is discussed here based on the thermal conditions of subalpine main tree species and the rise in temperature during the Hypsithermal climax phase.The thermometrical zone for A. mariesii is divided into four ranges as shown in Fig. 5-b. The mountains whose peaks are thermometrically in zones B and C can be regarded as mountains where A. mariesii is alternatively indigenous or not indigenous under the present thermal conditions. On the mountains whose peaks are in zone A, A. mariesii is expected to be indigenous. Thus, the mountains in zone A but without A. mariesii forest are called the “A. mariesii-lacking mountains” and are examined here.For the “A. mariesii-lacking mountains”, the thermal conditions at their peaks were out of zone A and into zones B and/or C during the Hypsithermal climax phase, when the mean summer temperature rose to be 2.5°C higher than that at present in Japan. During the high-temperature period of the Hypsithermal, the habitat of A. mariesii was pushed over the mountain peak due to the upward migration of vegetation zones. Thus, the principal cause of the pseudo-alpine zone is the ‘pushing-out effect’ caused by the rise of temperature. The origin of the subalpine zones without subalpine coniferous forest in West Japan is also considered to be the same process as the pseudo-alpine zone in the Tohoku mountains. The lacking of a tree species on a mountain depends on a process in which the thermal conditions suitable for the species disappeared from the mountain during a period in the history of climatic changes and, since the event, the thermal habitat of the species has been isolated from the surrounding mountains with forests of the same species. The present features of distribution of the subalpine tree species which grow under cold climatic conditions on high mountain areas in Japan have been affected by the small changes (2 or 3°C) in temperature during the Holocene, reflecting the topographical mosaic built up by many small mountain blocks and inter-lowlands.

著者

森 博愛 小林 総一郎 毛利 三郎

出版者

一般社団法人 日本老年医学会

雑誌

日本老年医学会雑誌 (ISSN:03009173)

巻号頁・発行日

vol.29, no.4, pp.293-297, 1992-04-25 (Released:2009-11-24)

参考文献数

20

被引用文献数

3 5

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左脚分枝ブロックの1型である左脚中隔枝ブロックの際には, 横断面QRS軸の方向が変化し, QRS波前方成分が増大する. 健常例のV1, 2のQRS波計測値に基づき, 下記のような左脚中隔枝ブロックの心電図診断基準を設定した.(1) 右室肥大, 完全右脚ブロック, WPW症候群 (A型), 高位後壁梗塞, 肥大型心筋症, 心臓長軸周りの著しい反時針式回転を起こすような胸郭ないし胸郭内異常を除外する.(2) 次の2項目の内, 何れか1つを満たす.(1) V1のR/S>2, かつRV1≧5mm, (2) V2のR/S>2, かつRV2≧15mmまたはSV2<5mm高年者を主対象とする病院の全入院患者における本所見の頻度は3.5%で, 左脚前枝ブロック, 完全右脚ブロックより少ないが, 完全左脚ブロック, 両脚ブロックよりも多く, 高年者の異常心電図所見の1つとして注意を払う必要がある.

著者

川森 博司

出版者

国立歴史民俗博物館

雑誌

国立歴史民俗博物館研究報告 = Bulletin of the National Museum of Japanese History (ISSN:02867400)

巻号頁・発行日

vol.32, pp.1-21, 1991-03-30

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The two main topics of Japanese folktales are marriage and fortune-making. This thesis analyzes the latter type of folktales in an attempt to reveal the spirit of people who lived in a typical Japanese village community to hand down these pieces of folktales.Significant among the type of fortune-making folktales are stories characterized by antagonism between I-the main character who makes a fortune and II-another character who fails to make a fortune. The antagonism is expressed in various combinations of conflicting parties such as a man and his wife, a man and his neighbor, or a man and his real brother or stepbrother, among which the preferred one in Japan is that of a man and his neighbor.In the Amami and Okinawa islands, however, a type of antagonism between ‘a man and his brother’ appears in a high ratio depending on some kinds of stories. Detailed analysis of folktales in the Amami and Okinawa islands is expected to identify the difference from folktales in the main land of Japan so that the nature of antagonism between characters in Japanese folktales may be better understood.The Japanese features may also be more clearly understood by comparing her folktales with that of other nations to reveal their similarities and differences. For example, in Korea, a type of antagonism between ‘a man and his brother’ appears more frequently in their folktales. More careful comparison, however, requires a classified collection of materials from various countries, based on which international comparison should be made.The fact that a type of antagonism between ‘a man and his neighbor’ is the preferred type in Japanese folktales indicates that the relationship with neighbors was of main concern to people in a typical Japanese village community. Folktales provide valuable resources for investigating their inner world.