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RISS 인기검색어
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- 저자 : Yoshie Iwasaki (검색결과 4 건)
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Iwasaki, Yoshie,Honda, Sumihisa,Kaneko, Shuji,Kurishima, Kazuhiro,Honda, Ayumi,Kakinuma, Ayumu,Jahng, Doosub Occupational Safety and Health Research Institute 2017 Safety and health at work Vol.8 No.1
Background: Physical activity (PA) is ranked as a leading health indicator and the workplace is a key setting to promote PA. The purpose of this study was to examine how goal-setting and exercise self-efficacy (SE) during a health promotion program influenced PA level among Japanese workers. Methods: Using a cross-sectional study design, we surveyed 281 employees. The short version of the International Physical Activity Questionnaire was used to assess PA level. Exercise SE was assessed using a partially modified version of Oka's exercise SE scale. Personal goals were assessed as the total numbers of "yes" responses to five items regarding "details of personal goals to perform PA". A mediational model was used to examine whether exercise SE mediates between the number of personal goals and PA level. Results: The mean age of the participants was 46.3 years, 76.2% were men, and the most common occupational category was software engineer (30.6%). The average PA level per week exceeded the recommended level in 127 participants (45.2%). One hundred and eighty-four participants (65.5%) set some form of concrete personal goal to perform PA. The relationship between the number of personal goals and PA level was mediated by exercise SE. Conclusion: Our study showed that exercise SE mediates goal-setting and increases PA. The results suggest that the components of PA promotion programs should be tailored to enhance participants' confidence in performing PA.
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Yoshie Iwasaki,Sumihisa Honda,Shuji Kaneko,Kazuhiro Kurishima,Ayumi Honda,Ayumu Kakinuma,Doosub Jahng 한국산업안전보건공단 산업안전보건연구원 2017 Safety and health at work Vol.8 No.1
Background: Physical activity (PA) is ranked as a leading health indicator and the workplace is a key setting to promote PA. The purpose of this study was to examine how goal-setting and exercise selfefficacy (SE) during a health promotion program influenced PA level among Japanese workers. Methods: Using a cross-sectional study design, we surveyed 281 employees. The short version of the International Physical Activity Questionnaire was used to assess PA level. Exercise SE was assessed using a partially modified version of Oka’s exercise SE scale. Personal goals were assessed as the total numbers of “yes” responses to five items regarding “details of personal goals to perform PA”. A mediational model was used to examine whether exercise SE mediates between the number of personal goals and PA level. Results: The mean age of the participants was 46.3 years, 76.2% were men, and the most common occupational category was software engineer (30.6%). The average PA level per week exceeded the recommended level in 127 participants (45.2%). One hundred and eighty-four participants (65.5%) set some form of concrete personal goal to perform PA. The relationship between the number of personal goals and PA level was mediated by exercise SE. Conclusion: Our study showed that exercise SE mediates goal-setting and increases PA. The results suggest that the components of PA promotion programs should be tailored to enhance participants’ confidence in performing PA.
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Small Left Atrium: An Adjunctive Sign of Hemodynamically Compromised Massive Pulmonary Embolism
Yukihiro Hama,Tadayuki Yakushiji,Yoshie Iwasaki,Tatsumi Kaji,Naoei Isomura,Shoichi Kusano 연세대학교의과대학 2005 Yonsei medical journal Vol.46 No.5
Pulmonary embolism (PE) is a common disease with a high mortality rate due to right ventricular dysfunction and underfilling of the left ventricle. We present a case of a 33-year-old man with hemodynamically compromised massive PE. His left atrium was collapsed with marked dilatation of the right atrium and ventricle on multi-detector-row CT scans. The patient was treated with an intracatheter injection of a mutant tissue-type plasminogen activator and subsequently showed clinical and radiological improvements. The small left atrial size in combination with a right ventricular pressure overload was considered to be an adjunctive sign of hemodynamically compromised massive PE.
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강성수리(剛性數理) 모델에 의한 파이프라인계(系)의 서어징 해석(解析)
김선주 ( Kim Sun Joo ),吉野秀雄 ( Yoshi Hideo ),岩崎和己 ( Iwasaki Kazumi ),中達雄 ( Naka Tatsuo ),김시원 ( Kim Shi Won ) 한국농공학회 1990 韓國農工學會誌 : 전원과 자원 Vol.32 No.1
開放式 管水路는 낮은 壓力으로 多量의 用水를 輸送할 수 있는 장점을 갖고 있으나 流量變動에 의한 서어징現像이 현저한 것이 단점이다. 管路內의 흐름을 安定시키기 위해서는 이 서어징의 特性이 究明되어 대규모의 서어징에 대한 對策이 講究되어야 할 것이다. 開放式 管水路系의 서어징을 剛性水柱理論으로 計算하기 위하여 運動方程式, 連續方程式과 스탠드 水槽의 中間壁에 設置된 堰의 越流公式等을 組合한 基礎方程式이 유도되었다. 本 硏究의 數値解析모델은 가장 一般的인 4차의 Runge-Kutter 方法을 使用하였으며, 이 모델의 正當性과 프로그램의 有用性을 檢證하기 위하여 水理模型實驗値와 數値解析値가 比較되었다. 그 結果 管路에 空氣의 混入이 없는 경우에는 實驗値와 解析値가 實用上의 支章이 없는 程度로 잘 일치되었지만, 空氣의 混入이 發生되는 경우에는 實驗値가 解析値에 비해 약간 크게 나타나서 이 경우에도 서러징의 解析이 可能한 새로운 모델의 開發이 필요한 것으로 생각된다. 또한 本 剛性水柱 모델을 利用하여 現在 서어징 問題로 困難을 받고 있는 日本 滋賀縣 琵琶湖 부근의 用水幹線을 對象으로 그 서어징의 特性과 改善方法을 檢計한 結果 旣設 開放式管水路系의 스탠드 중 每3個所 스탠드마다 1個所 스탠드의 下流側 水槽 水面積 擴張하는 것이 妥當性이 있는 것으로 解析되었다.
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