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운동이 비만 여성의 심근산소소비량과 심전도 QTc 간격에 미치는 영향
이혁종,박윤정,김용권,한구석,진영수 대한스포츠의학회 1999 대한스포츠의학회지 Vol.17 No.1
The purpose of this study was to investigate the effects of exercise staining on MVO_2 and electrocardiogram QTc interval in obese woman and to propose the desirable method for weight loss. Subjects were fifteen obese women for this study. 8 subjects were prolonged QTc interval group and 7 subjects were normal QTc interval. They participated in exercise program consisted of aerobic exercise and weight training exercise at A Medical Center. The body composition including Boyd Weight, BMI, WHR and % Body Fat was measured. The resting and exercise(Bruce protocol 7th min) rate-pressure product(RPP) could be measured with HR and systolic BP for MVO_2 measurement. The electrocardiogram QTc interval was calculated with Bazzett's formula using automated software program. The measured data of this study were as follows: 1) After participating the exercise program consisted of aerobic exercise and weight training exercise, Body Weight, BMI, WHR and % Body Fat were significantly changed in two groups. (p<.05). 2. After participating in the exercise program consisted of aerobic exercise and weight training exercise, the resting and exercise MVO_2 using RPP were significantly changed in two groups(p<.05). 3) After participating in the exercise program consisted of aerobic exercise and weight training exercise, the electrocardiogram QTc interval were decreased but were not significantly changed in prolonged QTc interval group. (p<.29). However, it was significantly decreased in prolonged QTc interval(p<.00).
국내 대형 EPC업체의 산업설비 상세설계 수행능력평가 및 문제점 분석
최종수,고윤혁 동국대학교 산업기술연구원 2007 산업기술논문집 Vol.16 No.2
본 연구의 목적은 국내 대형 EPC업체의 상세설계 역량을 평가하고 상세설계 프로세스상의 문제점을 도출하는데 있다. 연구결과에 의하면 국내 대형 EPC 업체들의 상세설계능력은 선진국 대비 상당 수준에 이르러 타 부문에 비해 경쟁력이 높은 분야로 평가되었으나 프로세스상에서 비효율적인 요소가 다수 있는 것으로 나타나 이를 해결함으로써 효율성을 높일 수 있는 여지가 있는 것으로 평가되었다. 파악된 비효율적인 요소들은 국제건설시장에서 국내 업체들이 경쟁력을 확보하기 위해 반드시 해결해야 하는 문제이며 짧은 시간에 적은 투자로 효과를 기대할 수 있는 분야로 사료된다. 본 연구를 통해 도출된 결과는 향후 산업설비 설계분야의 발전자 엔지니어링 핵심기술 확보에 기초가 되는 자료로 활용될 수 있을 것이다.
Yoon, Yeonyee E.,Kim, Kyoung Min,Han, Jong Soo,Kang, Si-Hyuck,Chun, Eun Ju,Ahn, Soyeon,Kim, Sun Mi,Choi, Sang Il,Yun, Bo La,Suh, Jung-Won American College of Cardiology 2019 JACC CARDIOVASCULAR IMAGING Vol.12 No.7
<P><B>Graphical abstract</B></P><P>[Figure]</P><P><B>Abstract</B></P><P><B>Objectives</B></P><P>This study sought to determine whether evaluations of breast arterial calcification (BAC) and low bone mass (LBM) could improve the ability to predict subclinical coronary artery disease (CAD) in asymptomatic women.</P><P><B>Background</B></P><P>An improved risk stratification strategy beyond the measurement of conventional risk factors is needed to identify women at high risk of CAD.</P><P><B>Methods</B></P><P>The BBC (Women Health Registry Study for Bone, Breast, and Coronary Artery Disease) enrolled 2,100 asymptomatic women who underwent dual-energy X-ray absorptiometry, digital mammography, and coronary computed tomography angiography. We assessed the predicted 10-year atherosclerotic cardiovascular disease (ASCVD) risk and evaluated the presence and severity of BAC, LBM, coronary artery calcification (CAC), and coronary atherosclerotic plaque (CAP).</P><P><B>Results</B></P><P>CAC and CAP were found in 11.2% and 15.6% of participants, respectively. In women with CAC or CAP, increasing trends in the presence and severity of both BAC and LBM were observed. Both BAC and LBM were found to be associated with the presence of CAC (unadjusted odds ratios [OR]: 3.54 and 2.22, respectively) and CAP (unadjusted OR: 3.02 and 1.91, respectively). However, in multivariate analysis, only the presence of BAC and BAC score remained as independent predictors. For the prediction of CAC and CAP, addition of the BAC presence to the 10-year ASCVD risk significantly increased the areas under the curve (area under the curve: 0.71 to 0.72; p = 0.016; and area under the curve: 0.66 to 0.68; p = 0.010; respectively) and resulted in net reclassification index improvements (area under the curve: 0.304; p <0.001; and area under the curve: 0.245; p <0.001; respectively).</P><P><B>Conclusions</B></P><P>The presence and severity of BAC and LBM were significantly associated with the risk of subclinical CAD in asymptomatic women. BAC evaluation especially provides an independent and incremental value over conventional risk algorithms. (Women Health Cohort for Breast, Bone and Coronary Artery Disease [BBC]; NCT03235622)</P>
( Yoon Jung Lee ),( Yun Kyung Park ),( Min Ji Lee ),( Kyu Taek Lee ),( Kwang Hyuck Lee ),( Jong Kyun Lee ) 대한소화기학회 2015 Gut and Liver Vol.9 No.4
Background/Aims: Several precut techniques have been used to gain biliary access for difficult cases. The aim of this study was to evaluate the success and complication rates of two precut techniques, transpancreatic septotomy (TPS) and needle knife infundibulotomy (NKI), in difficult biliary cannulation due to the presence of unintended pancreatic cannulation. Methods: Eighty-six patients who failed standard biliary cannulation were included. TPS was performed when we failed to achieve biliary access despite 5 minutes of attempted cannulation or when more than three attempted unintended pancreatic cannulations occurred. If deep cannulation was not achieved within 5 minutes for any duct, NKI was performed. If this failed, we crossed over to the other technique in the second attempt. Results: The initial total success rate of biliary cannulation was 88.4% (86.6% for the TPS group and 94.7% for the NKI group, p=0.447). After crossover of the techniques, the final success rate was 95.3%. The complication rate was 20.9% in patients with TPS and 15.8% in patients with NKI (p=0.753). Conclusions: The use of different strategies based on the presence of unintended pancreatic cannulation may help increase the success rate for difficult biliary cannulation without increasing complication rates. (Gut Liver 2015;9:534-539)