Hepatic Cirrhosis Occurring in a Young Woodchuck(Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus(WHV)

Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea

A METHOD FOR DETERMINING MAGNETIC HELICITY OF SOLAR ACTIVE REGIONS FROM SOHO/MDI MAGNETO GRAMS

CHAE JONGCHUL,JEONG HYEWON The Korean Astronomical Society 2005 Journal of The Korean Astronomical Society Vol.38 No.2

Recently a big progress has been made on the measurements of magnetic helicity of solar active regions based on photospheric magnetograms . In this paper, we present the details of Chae's method of determining the rate of helicity transfer using line-of-sight magnetograms such as taken by SORO /MDI. The method is specifically applied to full-disk magnetograms that are routinely taken at 96-minute cadence.

ANALYSIS OF REQUIREMENT OF HYGIENE EDUCATION PROGRAM FOR BEAUTY INDUSTRY WORKERS

Jeong?Yeon Park,In?Soon Jeong,Ga-Hee Park,Chae-Young Park 한국엔터테인먼트산업학회 2018 한국엔터테인먼트산업학회 학술대회 논문집 Vol.2018 No.7

This study will examine educational satisfaction on Estheticians who completed hygiene education, conduct survey on demands for educational programs which are required, and provide basic data for effective operation and qualitative improvement of skin beauty care hygiene education. Based on the above results, technique education by applying the recent trend in occupational intelligence should be performed as a way for improving satisfaction of hygiene education for learners. In particular, education should be prepared to increase the association with practical job in the general education.

Revised Chae's Method for the Helicity Transfer Rate

Hyewon Jeong,Jongchul Chae 한국천문학회 2006 天文學會報 Vol.31 No.1

쌍정 경계가 고온 초전도체 Y₁Ba₂Cu₃O단결정의 자기적특성에 미치는 영향

이보화,박정수,김채옥,김의훈,정규채 漢陽大學校 自然科學硏究所 1997 自然科學論文集 Vol.16 No.-

일반적으로 쌍정 경계(twin boundary)는 고온초전도체Y₁Ba₂Cu₃O??? 단결정 내에서 핀 고정점(pinning center)로 작용하여 단결정 시료의 자화에 영향을 미칠 것으로 알려져 왔다. 그러나 이에 대한 체계적인 실험적 연구가 수행되지 않고 있다. 본 실험에서는 Y₁Ba₂Cu₃O??? 단결정 시료를 성장시킨 후, 재 후열처리 과정 중에 단축 가압 방법(uniaxial stress method)을 이용하여 단결정 시료를 detwinning 하였다. 편광효과가 관측된 micro-Raman spectra와 X-ray 회절 패턴으로부터 관측된 (001)면의 주 피크의 2Θ 값을 통해서 단결정이 잘 성장되었음을 확인하였다. 그리고, 반자성 차폐 효과, 마이스너 효과 및 자기이력 측정 결과로부터 detwinning시간이 길어져서 쌍정 경계의 비율이 감소할수록 자화폭이 감소함을 관측하였다. 이로부터 자속 고정(flux pinning)이 줄어듦을 알 수 있었다. 그러므로 쌍정 경계가 고온초전도체 Y₁Ba₂Cu₃O??? 단결정의 핀 고정점으로 작용한다는 것을 알 수 있었다. Generally it is suggested that twin boundaries play the major role of the pinning center in high-Tc superconductor Y₁Ba₂Cu₃???? single crystal and influences the magnetization. However, any systematic experiment related with this expectation has not been performed yet. In this experiment, after growing Y₁Ba₂Cu₃??? single crystals, we detwinned them in oxygen atmosphere using uniaxial stress method while annealing them again. It was verified that single crystals had been grown well from micro-Raman spectra that showed the polarization effect and 2Θ values of (001) plain peaks in X-ray diffraction pattern. We observed that values of magnetization of samples decreased from antimagnetic shield effects, Meissner effect and magnetic hysteresis as detwinning time was increased and this result means that flux pinning decreases. As a result we confirmed that twin boundaries act as a pinning center in high-Tc superconductor Y₁Ba₂Cu₃??? single crystal.

한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

기(氣)수련이 정신건강 프로파일에 미치는 효과

정영자,정현익,이명수,서채문 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

This cross-sectional investigation evaluated the trend of psychological changes by Qi-training using a self-report inventory of emotional distress, Symptom Check List-90-Revision (SCL-90-R). Forty-one normal healthy subjects (mean age: 21.0±5.4) and one hundred-twenty-three Qi-trainees (divided into three groups, primary, middle and high level) participated in this study. Primary level group has received 1-4 months Qi-training (mean age: 22.0±7.8, n = 41); middle level group has 5-12 months Qi-training (mean age: 20.0±7.8, n = 41); and high level group has more than 1 year Qi-training (mean age: 22.7± 6.7, n = 41). Our results show that all of psychologucal symptom scales of Qi-trainees over lyear were significantly lower scores compared to controls. In addition, high level group had lower global indexes scores than control. A significant negative correlation was found between the Qi-training period and all SCL-90-R subscales except phobic anxiety. These results suggest that Qi-training is effective in protection as well as reduction of psychological symptomatology.

수면 무호흡과 불안장애의 불면증에 대한 다원수면기록

채정호,박원명,채영래,김제헌 大韓神經精神醫學會 1994 신경정신의학 Vol.33 No.2

Objects : The authors studied polysomnographic findings of patients with sleep apnea DIMS (disorders of initiating and maintainig sleep) syndrome and anxiety disorders with insomnia related to another mental disorders. Methods : Eight patients with sleep apnea DIMS syndrome and fourteen patients with anxiety disorder with insomnia related to another mental disorder(nonorganic) were studied using computerized polysomnography. Results : 1) The sleep period time were significantly decreased in anxiety disorder group and the sleep latency was prolonged in these patients. 2) The changes in sleep stage and the number of arousals during sleep period time were more frequent in sleep apneic patients group. And using these variables we could discriminate sleep apneic patients group from subjects with anxiety disorder. 3) The stage 1 sleep was significantly increased in sleep apneic patients. 4) The apnea index in sleep apnea patients was 28.1±25.7. Conclusion : These results suggested that even though there were similiar clinical presentaion such as insomnia, the sleep features of sleep apnea DIMS syndrome and anxiety disorder with insomnia were different. And though there were no instruments to check respiratory flow or movement, it would be possible to discriminate the sleep apnea DIMS syndrome from the anxiety disorder with insomnia by recording the changes in sleep stage and the number of arousals in overnight electroencephalographic procedure.

초등학생들의 체격지수가 체력요인에 미치는 영향

채정룡,윤석창,신현철 군산대학교 체육과학연구소 1999 體育科學硏究所 論文集 Vol.1 No.-

The aim of this study make it clear the trait of physical strength according to Physique index and help the Physical fitness leaders to raise the function of exercise and provide them with study programs by stage in the sport learning. For this study 620 students (male & female students in 5 and 6 class of elementary school) were selected. The result of study show outstanding physical trait in body weight ratio and chest girth ratio. The results are the following. (1) The physical characteristics of the investigated children, around 5 class or 6 class, show that female children's growth is faster than male's. (2) The trait of Physical Fitness shows it is superior in male's group and as grow older, but the group of 5 class is more superior than the group of 6 class, in male's and female's pull-ups. (3) The correlation between physique index shows the highest correlation(P< .01) in body weight and girth of chest, next is height and sitting height, height and girth of chest, followed by girth of chest and sitting height. (4) The correlation between 100m sprint and physical fitness shows high positive interrelation(P< .01) in 600m distance run, but negative interrelation(P< .01) in standing broad jump, pull-ups, sit-ups and ball throwing. (5) The correlation between standing broad jump and physical fitness shows positive interrelation(P< .01) in sit-ups, pull-ups and ball throwing, but negative interrelation(P< .01) in 100m sprint and 600m distance run. (6) The correlation between pull-ups and physical fitness shows positive interrelation(P< .01) in sit-ups, standing broad jump and ball throwing, but negative interrelation(P< .01) in100m sprint and 600m distance run. (7) The correlation between sip-ups and physical fitness shows positive interrelation(P< .01) in standing broad jump, sit-ups and ball throwing, but negative interrelation(P< .01) in 100m sprint and 600m distance run. (8) The correlation between ball throwing and physical fitness shows positive interrelation(P< .01) in standing broad jump, pull-ups, sit-ups and ball throwing, but negative interrelation(P< .01) in 100m sprint and 600m distance run. (9) The correlation between 600m distance run and physical fitness shows high positive interrelation (P< .01) in 100m sprint, but negative interrelation (P< .01) in standing broad jump, pull-ups, sit -ups and ball throwing. (10) The correlation between physical fitness and physique index shows the highest correlation in body weight ratio, next is chest girth ratio, followed by sitting height ratio. (11) The correlation between body weight ratio and physical fitness shows positive interrelation (P<.01) in 100m sprint (male and female students in 5 class) and standing broad jump, sip-up (female students in 5 class), ball throwing (male students in 5 class) and 600m distance run, but negative interrelation(P< .01) in pull-ups etc. (12) The correlation between chest girth ratio and physical fitness shows positive interrelation (p<. 01) in 100m sprint and 600m distance run, but negative interrelation(P<. 01) standing broad jump, pull-ups, sit-ups and ball throwing etc. (13) The correlation between sitting height ratio and physical fitness shows positive interrelation (P<. 01) in pull-ups, sit-ups and ball throwing, but negativ interrelation(P< .01) in 100m sprint, standing broad jump, sit-ups and 600m distance run etc. (14) The correlation between physical index shows positive interrational (P< .01) body weight ratio and chest girth ratio, chest girth ratio and sitting height ratio, but negative interrelation in(P< .01) body weight ratio and sitting height ratio.

降水物 tritium濃度의 年中變化

蔡貞淑,尹柱庸,田載植 충남대학교 자연과학연구소 1983 忠南科學硏究誌 Vol.10 No.1

A series of measurements of tritium concentration in precipitation has been carried out at the College of Sciences, Chungnam National University for a period of one year from March 1982 to February 1983. Samples were taken from every precipitation and processed through electrolytic enrichment for liquid scintillation counting of tritium activity. Results are summarized in a table and figure which shows a rough periodicity in the annual variation of tritium concentration with a maximum monthly mean of 1318±197 TR in April 1982 and a minimum of 220±37 TR in July of the same year.