著者

Nobuyuki Ohte Tomoko Ishizu Chisato Izumi Hiroshi Itoh Shiro Iwanaga Hiroyuki Okura Yutaka Otsuji Yasushi Sakata Toshihiko Shibata Toshiro Shinke Yoshihiro Seo Masao Daimon Masaaki Takeuchi Kazuaki Tanabe Satoshi Nakatani Masaki Nii Kazuhiro Nishigami Takeshi Hozumi Satoshi Yasukochi Hirotsugu Yamada Kazuhiro Yamamoto Masaki Izumo Katsuji Inoue Hiroyuki Iwano Atsushi Okada Akihisa Kataoka Shuichiro Kaji Kenya Kusunose Akiko Goda Yasuharu Takeda Hidekazu Tanaka Kaoru Dohi Hirotoshi Hamaguchi Hidekatsu Fukuta Satoshi Yamada Nozomi Watanabe Makoto Akaishi Takashi Akasaka Takeshi Kimura Masami Kosuge Tohru Masuyama on behalf of the Japanese Circulation Society Joint Working Group

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.86, no.12, pp.2045-2119, 2022-11-25 (Released:2022-11-25)

参考文献数

460

被引用文献数

16

著者

山田 慧 Satoshi Yamada

出版者

同志社法學會

雑誌

同志社法學 = The Doshisha Hogaku (The Doshisha law review) (ISSN:03877612)

巻号頁・発行日

vol.71, no.4, pp.1477-1505, 2019-09-30

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判例研究(Case Study)

著者

Sanae Hamaguchi Shintaro Kinugawa Daisuke Goto Miyuki Tsuchihashi-Makaya Takashi Yokota Satoshi Yamada Hisashi Yokoshiki Akira Takeshita Hiroyuki Tsutsui JCARE-CARD Investigators

出版者

日本循環器学会

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.75, no.10, pp.2403-2410, 2011 (Released:2011-09-22)

参考文献数

26

被引用文献数

30 69

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Background: Aging is associated with adverse outcomes in patients with cardiac diseases. Whether elderly patients hospitalized with heart failure (HF) had increased risks for mortality and rehospitalization compared with younger patients during the long-term follow-up was examined. The predictors of these adverse outcomes were also identified. Methods and Results: The Japanese Cardiac Registry of Heart Failure in Cardiology (JCARE-CARD) studied prospectively the characteristics and treatments in a broad sample of 2,675 patients hospitalized with worsening HF and the outcomes were followed up. The majority of elderly patients were female, had lower body mass index (BMI), a higher rate of ischemic, valvular, and hypertensive heart disease as etiologies of HF, a lower estimated glomerular filtration rate (eGFR), lower hemoglobin, and higher left ventricular ejection fraction values. Even after adjustment for covariates, the elderly patients were associated with higher risks of adverse outcomes. The predictors for all-cause death were: lower eGFR, lower BMI, male sex, sustained ventricular tachycardia or fibrillation (VT/VF), and the use of diuretics at discharge. Conclusions: Among patients hospitalized with HF, elderly patients had a worse prognosis than younger patients. Lower eGFR, lower BMI, male sex, sustained VT/VF, and diuretic use were independent predictors for all-cause death in these patients with higher risk. (Circ J 2011; 75: 2403-2410)

著者

Saran KEERATIHATTAYAKORN Satoshi YAMADA Shigeru TADANO

出版者

一般社団法人 日本機械学会

雑誌

Journal of Biomechanical Science and Engineering (ISSN:18809863)

巻号頁・発行日

pp.15-00423, (Released:2015-09-07)

参考文献数

27

被引用文献数

1 1

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The authors proposed an electromyography computed tomography (EMG-CT) method to measure the distribution of muscle activity in the forearm using surface EMG signals from multiple surface electrodes. The present study is to develop a method to estimate muscle stress, i.e., force generated during contraction per unit area in the whole cross-section of the forearm based on EMG-CT. While three subjects performed hand gripping trials using three hand grip devices, EMG signals around the forearm were measured using EMG-CT. An EMG conduction model of the forearm was constructed using an outline geometry of the subjects' forearm which was measured with a handy 3D scanner. The stress of muscle was calculated from the relationship between gripping force and total muscle activity. As a result, the distribution of muscle stress in the forearm during hand gripping was visualized in a tomographic image. It was clear that the stress was concentrated in the flexor digitorum superficialis, flexor digitorum profundus, flexor carpi radialis, and extensor digitorum communis region. The maximum stress in the forearm muscles increased from 0.08 ± 0.01 to 0.18 ± 0.02 MPa when gripping force increased from 77 to 242 N. This study provides a novel method of measuring muscle stress in forearm.

著者

Hirotomo Ohuchi Satoshi Yamada Toshihiro Kimura Setsuko Ouchi Mitsuhito Matsubara

出版者

ARCHITECTURAL INSTITUTE OF JAPAN (AIJ), ARCHITECTURAL INSTITUTE OF KOREA (AIK), ARCHITECTURAL SOCIETY OF CHINA (ASC)

雑誌

Journal of Asian Architecture and Building Engineering (ISSN:13467581)

巻号頁・発行日

vol.10, no.2, pp.359-366, 2011-11-15 (Released:2011-11-15)

参考文献数

26

被引用文献数

4

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This paper examines the "complexity" of space in Agoras by analyzing their architecture using image-processing technology. Agoras were central to the lives of Western European people and can be called the starting point of Western European civilization. Image processing technology was used to perform the initial restoration of the architecture and city shape. Each building in the 3D model of the plaza was then constructed, centering on the formation of the Agora. The box-counting method was used to determine the relationship between the shadow image and the fractal analysis of the 3D plaza composition. This was applied in the fractal analysis of the changes in the arrangement of the facilities from generation to collapse.

著者

Satoshi Yamada Nobutaka Shintani Hirotomo Ohuchi

出版者

ARCHITECTURAL INSTITUTE OF JAPAN (AIJ), ARCHITECTURAL INSTITUTE OF KOREA (AIK), ARCHITECTURAL SOCIETY OF CHINA (ASC)

雑誌

Journal of Asian Architecture and Building Engineering (ISSN:13467581)

巻号頁・発行日

vol.8, no.1, pp.151-158, 2009-05-15 (Released:2009-05-16)

参考文献数

13

被引用文献数

2

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This paper studies landscape recognition of the Kamakura historical area by inhabitants. A region is composed of sets of individual events with a broad range of scales. Such embodiments constitute the regional environment that is made up of both nature and man-made structures. In a regional environment, the sharing of these mental spaces is considered to be a necessary precondition for regional coexistence. This study focused on landscape recognition as a shared mental space. A cognitive region map is drawn using the results of a questionnaire, and this map reveals the inhabitants′ recognition of the landscape. A visualization model was used to analyze the area′s environment and the relationships with the inhabitants′ recognition of the landscape. This paper quantifies the urban forms of the regional environment using fractal dimensional analyses of aerial photographs and considers their relationships to the inhabitant′s cognizance of the landscape. Therefore, the objective area of the fractal analysis is extended to include the region of ″a landscape, which has the identity of Kamakura,″ and ″a place that has changed (recognition),″ In this paper, the above analysis was used to quantify complex urban forms. The paper evaluates landscape recognition and the relationships of the urban forms in terms of the continuity of the fractal dimensions.

著者

Takashi Yoshitani Naoya Asakawa Mamoru Sakakibara Keiji Noguchi Yusuke Tokuda Kiwamu Kamiya Hiroyuki Iwano Satoshi Yamada Yusuke Kudou Mutsumi Nishida Chikara Shimizu Toraji Amano Hiroyuki Tsutsui

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.80, no.5, pp.1187-1195, 2016-04-25 (Released:2016-04-25)

参考文献数

31

被引用文献数

13 25

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Background:Heart failure (HF) causes organ congestion, which is thought to increase organ stiffness. The virtual touch quantification (VTQ) method can be used to assess liver stiffness in patients with chronic liver diseases. This study aimed to measure liver and kidney stiffness using VTQ and to determine its value for assessing organ congestion in patients with HF.Methods and Results:This study included 10 normal subjects and 38 HF patients (age 52.3±16.7 years, left ventricular ejection fraction 27.0±9.4%, plasma B-type natriuretic peptide [BNP] 1,297.3±1,155.1 pg/ml). We investigated the relationships between clinical characteristics and hemodynamics and liver and kidney stiffness, and assessed the effects of medical treatment on these measurements. Liver stiffness was significantly higher in HF patients (1.17±0.13 m/s vs. 2.03±0.91 m/s, P=0.004) compared with normal subjects, but kidney stiffness was similar in both groups. Central venous pressure (CVP) (P=0.021) and BNP (P=0.025) were independent predictive factors for increased liver stiffness in HF patients. Liver stiffness decreased significantly from 2.37±1.09 to 1.27±0.33 m/s (P<0.001) after treatment. Changes in liver stiffness in HF patients significantly correlated with changes in CVP (R=0.636, P=0.014) and cardiac index (R=−0.557, P=0.039) according to univariate analysis, and with changes in CVP in multivariate analysis.Conclusions:Liver stiffness measured by noninvasive VTQ methods can be used to assess liver congestion and therapeutic effects in patients with HF. (Circ J 2016; 80: 1187–1195)

著者

Shota Fukuda Hiroyuki Watanabe Masao Daimon Yukio Abe Akihiro Hirashiki Kumiko Hirata Hiroshi Ito Masumi Iwai-Takano Katsuomi Iwakura Chisato Izumi Takayuki Hidaka Toshinori Yuasa Kazuya Murata Satoshi Nakatani Kazuaki Negishi Kazuhiro Nishigami Tomoko Nishikage Takahiro Ota Akihiro Hayashida Konomi Sakata Nobuhiro Tanaka Satoshi Yamada Kazuhiro Yamamoto Junichi Yoshikawa

出版者

日本循環器学会

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.76, no.5, pp.1177-1181, 2012 (Released:2012-04-25)

参考文献数

27

被引用文献数

27 67

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Background: The recently developed real-time 3-dimensional echocardiography (RT3DE) is a promising imaging method to quantify cardiac chamber volumes and their functions in clinical practice. However, normal reference values of RT3DE parameters have not been fully investigated in a large, healthy Japanese population. Methods and Results: This study consisted of 410 healthy subjects aged from 20 to 69 years who had a RT3DE at one of the 23 collaborating institutions. All subjects had no history of cardiac disease and no risk factors. The mean values in men and women were as follows: 50±12ml/m2 and 46±9ml/m2 for left ventricular (LV) end-diastolic volume index, 19±5ml/m2 and 17±4ml/m2 for end-systolic volume index, 61±4% and 63±4% for ejection fraction, 64±12g/m2 and 56±11g/m2 for mass index, 23±6ml/m2 and 24±6ml/m2 for left atrial (LA) maximum volume index, 10±3ml/m2 and 10±3ml/m2 for minimum volume index, and 58±6% and 58±6% for percent volume change. LV sizes decreased with age, whereas LV mass index did not change. LA sizes slightly increased with age. Conclusions: This multicenter investigation determined normal reference values for LV and LA sizes, and their functional parameters on RT3DE in a large, healthy Japanese population. The results of the present study support the use of RT3DE for the diagnosis and management of cardiovascular disease. (Circ J 2012; 76: 1177-1181)

著者

Seiji Kishi Satoshi Yamada Fumi Kishi Eriko Shibata Motokazu Matsuura Kojiro Nagai Akira Mima Hideharu Abe Toshio Doi

出版者

一般社団法人 日本内科学会

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

vol.51, no.16, pp.2197-2201, 2012 (Released:2012-08-15)

参考文献数

37

被引用文献数

5 5

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The prevalence of postinfectious glomerulonephritis has decreased in most developed countries. We report the case of a previously healthy, immunocompetent 65-year-old woman who developed acute glomerulonephritis associated with human parvovirus B19 infection. She was referred by her primary care physician for suspected congestive heart failure but she had an elevated creatinine level and an abnormal urinalysis. Renal biopsy showed diffuse endocapillary proliferative glomerulonephritis. After biopsy, we learned that she had been in frequent contact with her grandson who had been diagnosed with erythema infectiosum. Her human parvovirus B19 serum IgM titer was elevated at 3.50, indicating current infection.