• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제12권sup1호
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• pp.62-71
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• 2009

Non-alcoholic fatty liver disease (NAFLD) is the most common cause of pediatric liver disease. Similar to NAFLD in adults, NAFLD in children is associated with obesity and insulin resistance and requires liver histology for diagnosis and staging. However, significant histological differences exist between adult and pediatric NAFLD. The rise in childhood obesity has been accompanied by an increase in pediatric NAFLD. Age, gender and race/ethnicity are significant determinants of risk, and sex hormones, insulin sensitivity and adipocytokines are implicated in the pathogenesis of pediatric NAFLD. There is no consensus for treatment of NAFLD, however, data suggest that diet, exercise and some pharmacological therapies may be of benefit. To evaluate and effectively treat pediatric NAFLD, the pathophysiology and natural history of the disease should be clarified and non-invasive methods for screening, diagnosis, and longitudinal assessment developed.

• 대한가정학회지
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• 제32권4호
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• pp.31-43
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• 1994

The purpose of the study was to examine the economic well-being of households whose heads were retired in 1989 utilizing the combined income and net worth measyre of economic well-being which was adjusted for households size and composition. The data came from the 1989 Survey of Consumer Finances. The results showed that (1) the economic well-being of retired households was 87% of the average economic well-being of total households in the United States (2) there were considerable differences in the economic well-being among retired households and (3)race, sex, age of head had significant direct and/or indirect effects on the economic well-being of retired households. Education and income of longest job were significant intervening variables whereas the duration of longest job was not. On the basis of the results implications for public policy and future research were made.

• 복식
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• 제20권
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• pp.191-201
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• 1993

As a part of study examining Korean costume remaining in Yanbian China, this study explored changes in ceremonial clothing for marriage worn by Korean(Chosun race) in Yanbian China. About one hundred years ago, Koreans moved to Yanbian China and had worn traditional clothing for marriage ceremony until before 1940. Data were collected by true interview and field observation while staying in that area. Samo and Dalyung for bridegrooms, Wonsam and Jockdoory for bridegrooms, wonsam and Jockdoory for brides were usual costume for wedding ceremony, however, for couples in inferior conditions of life, Bazy and Jeogory for bridegrooms, yellow Jeogory and red Chima for brides were accepted for ceremonial costume. As western culture came to this area in about 1940, bridegrooms wore western style suit, while brides dress in white Chima, Jeogory and Neowool. To date, Korean brides have worn traditional Chima and Jeogory for marriage ceremony though slight change has occurred in clothing material and in the forms of Chima, Geogory and Neowool. As the pratice reflected the fact that Korean in Yanbian China as established and sustained traditional China as established and sustained traditional costume and Korean identity even in hush socio-cultural environment.

• Communications for Statistical Applications and Methods
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• 제25권5호
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• pp.545-557
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• 2018

The inclusion of covariates in the model often affects not only the estimates of meaningful variables of interest but also its statistical significance. Such gap between statistical and subject-matter significance is a critical issue in huge sample studies. A popular huge sample study, the sample cohort data from Korean National Health Insurance Service, showed such gap of significance in the inference for the effect of obesity on cause of mortality, requiring careful consideration. In this regard, this paper proposes a sample size calibration method based on a Monte Carlo t (or z)-test approach without Monte Carlo simulation, and also proposes a test procedure for subject-matter significance using this calibration method in order to complement the deflated p-value in the huge sample size. Our calibration method shows no subject-matter significance of the obesity paradox regardless of race, sex, and age groups, unlike traditional statistical suggestions based on p-values.

• Korean Journal of Health Education and Promotion
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• 제2권1호
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• pp.115-132
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• 2000

The purpose of this study is to provide baseline information on the risk-taking health behavior of alcohol consumption in four ethnic groups, Caucasian, Chinese, Japanese, and Korean, residing in the State of Hawaii. Secondary data from the State-based Health Behavioral Risk Factor Surveillance System, designed by the Center for Disease Control, were used. The total sample analyzed for this study contained 6,068 persons. Univariate and logistic regression analysis were performed in order to determine sociodemographic profiles and the predictor variables to produce the findings of this study. The percentage distribution of six sociodemographic factors by race was very similar in all alcohol consumption factors, acute drinking, chronic drinking, and drinking and driving. In this study there were significant ethnic differences in alcohol consumption factors except drinking and driving.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2016년도 제53차 동계학술대회논문집 24권1호
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• pp.9-10
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• 2016

본 논문에서는 멀티 스레드 기반 병렬 프로그램의 동적 분석을 통한 자료경합 탐지를 위해 효율적인 감시 필터링 기술을 제시한다. 제시하는 감시 필터링 기술은 자료경합과 같은 동시성 오류를 탐지하기 위해 프로그램의 수행 중에 발생하는 공유 메모리에 대한 스레드들의 접근 분석 시에 동일한 코드영역을 단순 반복하는 스레드들을 감시대상에서 제외시킴으로써 동적 분석을 위한 추가적인 오버헤드를 최소화한다. 제시하는 필터링 기술을 수행 중 자료경합 탐지 도구에 적용한 실험적 평가를 통해 개선된 수행시간 오버헤드의 제공이 가능함을 보인다.

• 한국시뮬레이션학회논문지
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• 제12권1호
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• pp.21-34
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• 2003

This paper deals with a case study of workload analysis of an operator in an automatic line for machining the race of ball bearing. Eleven machines and three hoppers are installed in the line which is operated by an operator. The elements of operation are separated into machine controlled elements, operator controlled elements and machine/operator controlled elements. In order to analyze the system, time and motion studies are used for gathering input data for the simulation model. The first objective of this study is to evaluate whether the workload of operator is reasonable or not. The second objective is to increase throughput by reducing tact time and the last one is to increase frequencies of inspection by reducing interval. Thus we suggest some ideas for improvement, and as a result, the throughput is improved about 9%. In spite of the increasing of throughput, the allowance of operator is also increased about 4%.

• 대한가정학회지
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• 제41권7호
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• pp.169-184
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• 2003

This study examined a causal relation between employment and depression among low-income young mothers who participated in New Chance Demonstration Study(NC). Using baseline and first follow-up interview data from NC study, this study selected 756 young mothers who were at risk of depression and unemployed at baseline. About 18% of them were employed and 45% of them were no longer at risk of depression at the first follow-up interview. The young mothers grade level and their race/ethnicity were significantly related to the number of weeks employed between the two time points and employment at the 1st follow-up interview. It was also found that employment was negatively associated with depression at the 1st follow-up interview. These findings imply that employment can ameliorate depressive symptoms of low-income young mothers.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2001년도 추계학술대회논문집 II
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• pp.810-816
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• 2001

In this paper, we theoretically analyzed the NRRO(the non-repeatable run-out) of a ball bearing with geometric imperfection. The quasi-static and dynamic analysis of a ball bearing was performed to calculate the displacement of shaft center caused by the form errors while the shaft is rotating. From consideration of the generating mechanism of NRRO, it is found that the waviness of one ball generates vibrations with nf$\sub$b/${\pm}$f$\sub$c/(where n is odd) components. Also it is confirmed that the outer race waviness of the order n = jZ${\pm}$1 generates vibration with jZf$\sub$c/ components. The form errors of ball bearing elements were precisely measured and NRRO of a ball bearing was calculated using the measured data. It is concluded that the ball bearings must has large ball number and small ball diameter to obtain low NRRO.

• Journal of Preventive Medicine and Public Health
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• 제56권5호
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• pp.440-448
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• 2023

Objectives: The purpose of this study was to assess predictors of health-related quality of life (HRQoL) in elderly Asian American and non-Hispanic White cancer survivors. Methods: We conducted cross-sectional secondary data analyses using the combined datasets from the Surveillance, Epidemiology, and End Results program and the Medicare Health Outcomes Survey. Results: Elderly Asian American cancer survivors reported a lower mental HRQoL but a comparable physical HRQoL relative to elderly non-Hispanic White cancer survivors. Stress factors, such as comorbidities, difficulties with activities of daily living, and a history of depressive symptoms, along with coping resources like self-rated health and the ability to take the survey in English, were significantly associated with mental and physical HRQoL. Among elderly Asian American cancer survivors, a significantly lower mental HRQoL was observed among those taking the survey in the Chinese language. Conclusions: The findings suggest that race exerts a differential impact on HRQoL. Interventions should be designed to address the distinct cultural, linguistic, and systemic needs of elderly Asian American cancer survivors. Such an approach could assist in reducing cancer-related health disparities.