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Choi, Y.M.,Kim, O.Y.,Kim, K.H.,Kim, B.C.,Rhee, M.S. Blackwell Publishing Ltd 2009 Letters in applied microbiology Vol.49 No.4
<P>Abstract</P><P>Aims: </P><P>To evaluate the effectiveness of organic acids and supercritical carbon dioxide (SC-CO<SUB>2</SUB>) treatments as well as their combined effect for the reduction of nonpathogenic <I>Escherichia coli</I> and three pathogenic bacteria in fresh pork.</P><P>Methods and Results: </P><P>The different treatment conditions were as follows: (i) treatment with acetic (1%, 2% or 3%) or lactic acid (1%, 2% or 3%) only, (ii) treatment with SC-CO<SUB>2</SUB> at 12 MPa and 35°C for 30 min only and (iii) treatment with 3% acetic or lactic acid followed by treatment with SC-CO<SUB>2</SUB>. Within the same organic acid concentration, the lactic and acetic acid treatments had similar reductions. For the combined treatment of lactic acid and SC-CO<SUB>2</SUB>, micro-organism levels were maximally reduced, ranging from 2·10 to 2·60 log CFU cm<SUP>−2</SUP> (<I>E. coli</I>, 2·58 log CFU cm<SUP>−2</SUP>; <I>Listeria monocytogenes</I>, 2·60 log CFU cm<SUP>−2</SUP>; <I>Salmonella typhimurium</I>, 2·33 log CFU cm<SUP>−2</SUP>; <I>E. coli</I> O157:H7, 2·10 log CFU cm<SUP>−2</SUP>).</P><P>Conclusions: </P><P>The results of this study indicate that the combined treatments of SC-CO<SUB>2</SUB> and organic acids were more effective at destroying foodborne pathogens than the treatments of SC-CO<SUB>2</SUB> or organic acids alone.</P><P>Significance and Impact of the Study: </P><P>The combination treatment of SC-CO<SUB>2</SUB> and organic acids may be useful in the meat industry to help increase microbial safety.</P>
정신박약아 부모와 지체부자유아 부모의 양육태도에 대한 비교연구
이상춘,최영하,원명욱,전재일,박옥수,이재호 韓國社會社業大學特殊敎育硏究所 1972 特殊敎育硏究 Vol.3 No.-
본연구에서는 대구 보명학교 아동의 부모 100명(정박군)과 대구보건학교 부모 62명(지체부자유군)의 아동에 대한 부모의 태도를 검사하여 CR 검증을 하였고 다이아그래프로 도시하여 고찰하였다. 본연구에서 나타난 결과를 요약하면 다음과 같다. A. 정박군, 지체구자유군의 양육태도의 차이는 소극적 거부형, 익애형, 맹종향, 불일치형의 4개 유형에서 001의 수준으로 매우 의의있는 차이가 나타나며 적극적거부형은 01수준에서 퍽 의의있는 차이로 나타나고 있어 이 5개의 유형 모두가 정박군이 더 위험 수준에 있다. B) 지체부자유에 대한 부와 모의 태도에는 의의있는 차이가 없고 부모공히 위험영역에 있다.
Electron Transport and Magneto - optical Properties of Magnetic Shape - memory Ni₂MnGa Alloy
Y. P. Lee,S. J. Lee,C. O. Kim,X. S. Jin,Y. Zhou,Y. V. Kudryavtsev,J. Y. Rhee 한국진공학회(ASCT) 2002 Journal of Korean Vacuum Science & Technology Vol.6 No.1
The physical properties, including magneto-optical and transport ones, of Ni₂MnGa alloy in the martensitic and austenitic states were investigated. The dependence of the temperature coefficient of resistivity on temperature shows kinks at the structural and ferro-para magnetic transitions. Electron-magnon and electron-phonon scattering are analyzed to be the dominant scattering mechanisms of the Ni₂MnGa alloy in the martensitic and austenitic states, respectively. The experimental real parts of the off-diagonal components of the dielectric function present two sharp peaks, one at 1.9 eV and the other at 3.2 eV, and a broad shoulder at 3.5 eV; all are identified by the band-structure calculations. These peak positions are coincident with those in the corresponding optical-conductivity spectrum, which is thought to originate from the single-spin state in Ni₂MnGa alloy.
Rhee, O.J.,Rhee, M.Y.,Oh, S.W.,Shin, S.J.,Gu, N.,Nah, D.Y.,Kim, S.W.,Lee, J.H. Elsevier/North-Holland Biomedical Press 2016 International journal of cardiology Vol.215 No.-
<P>Background: We evaluated the association between sodium intake and plasma renin levels in the cross sectional study and meta-analysis of randomized controlled trials, whether there is a persistent elevation of plasma renin by longer-term sodium intake restriction. Methods: Plasma renin activity (PRA) and 24-h urine sodium (24HUNa) excretion were measured from individuals randomly selected from a community. Simple and multiple linear regression analyses adjusted for age, 24-h systolic blood pressure, 24-h average heart rate, fasting blood glucose and gender were performed. For meta-analysis, 74 studies published from 1975 to mid-2014 were identified in a systematic literature search using EMBASE, CINAHL, and MEDLINE. Random effects meta-analyses and a meta-regression analysis were performed. Results: Among the 496 participants recruited, 210 normotensive and 87 untreated hypertensive subjects were included in the analysis. There was no significant association between PRA and 24HUNa in the total population, or hypertensive and normotensive individuals. In the meta-analysis, the standard mean difference (SMD) of renin level by sodium intake reduction was 1.26 (95% CI: 1.08 to 1.44, Z = 12.80, P < 0.001, I-2 = 87%). In the meta-regression analysis, an increase in a day of intervention was associated with a fall in SMD by -0.04 (95% CI: -0.05 to -0.02, Z = -5.27, P < 0.001, I-2 = 86%), indicating that longer duration of reduced sodium intake would lead to lesser SMD of renin level. Conclusions: The present population based cross-sectional study and meta-analysis suggests that prolonged reduction in sodium intake is very unlikely associated with elevation of plasma renin levels. (C) 2016 Elsevier Ireland Ltd. All rights reserved.</P>
Lee, E. Y.,Lee, S. J.,Kim, K. M.,Seo, D. H.,Lee, S. W.,Choi, H. S.,Kim, H. C.,Youm, Y.,Kim, C. O.,Rhee, Y. Springer Science + Business Media 2017 Calcified tissue international Vol.100 No.6
<P>Sarcopenia is considered to be a risk factor for osteoporotic fracture, which is a major health problem in elderly women. In this study, we aimed to investigate the association of sarcopenia, with regard to muscle mass and function, with prevalent vertebral fracture in community-dwelling elderly women. We recruited 1281 women aged 64 to 87 years from the Korean Urban Rural Elderly cohort study. Muscle mass and function were measured using bioimpedance analysis and jumping mechanography. Skeletal muscle index (SMI) and jump power were used as an indicator of muscle mass and function, respectively. Among the participants, we observed 282 (18.9%) vertebral fractures and 564 (44.0%) osteoporosis. Although age, body mass index, and prevalence of osteoporosis increased as both SMI and jump power decreased, prevalence of vertebral fracture increased only when jump power decreased. In univariate analysis, compared with the highest quartile of jump power, the lowest quartile had a significant odds ratio of 2.80 (95% CI 1.79-4.36) for vertebral fracture. This association between jump power and vertebral fracture remained significant, with an odds ratio of 3.04 (95% CI 1.77-5.23), even after adjusting for other risk factors including age, bone mineral density, previous fracture, and cognitive function. In contrast, there was no association between SMI and vertebral fracture. Based on our results, low jump power, but not SMI, is associated with vertebral fracture in community-dwelling elderly Korean women. This finding suggests that jump power may have a more important role than muscle mass itself for osteoporotic fracture.</P>