• 인터넷정보학회논문지
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• 제15권5호
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• pp.33-41
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• 2014

본 연구는 효과적인 SNS의 교육적 활용 방안을 제안하고자 SNS의 사용률이 높은 대학생들을 대상으로 구체적인 SNS의 교육적 활용 방법에 대한 의견과 그 이유에 대해 조사하였다. NVivo S/W를 이용하여 개방형 응답을 분석하였으며, 교육 주체별 SNS의 교육적 활용 방법을 가시화 하고자 교수자 영역과 학습자 영역, 공통 영역으로 범주화 하였다. 그 결과 공통 영역에는 의견 교류 및 토론, 정보 공유, 학습내용에 대한 질의응답, 설문조사, 친밀감 형성, 상담 등이 포함되었으며, 교수자 영역에는 공지사항 전달, 수업자료 제공, 실시간 평가(퀴즈), 출석 체크, 과제평가 및 피드백 등이 포함되었고, 학습자 영역에는 과제활동(그룹별/개인별), 공유자료를 이용한 예습 및 복습, 동영상을 이용한 자율학습, 과제에 대한 동료평가 및 피드백, 강의 평가 등이 포함되었다.

• 한국직업건강간호학회지
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• 제12권2호
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• pp.156-163
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• 2003

The 5 year follow up study was conducted to assess the positive seroprevalence of HbsAg and magnitude of new cases in a steel manufacturing big scale workpalce. About 2,000 serum samples collected from 1998 to 2002 for hepatititis B surface antigen(HBsAg), antibody to HBsAg(anti-HBs), sAST, sALT, r-GTP, total cholesterol, and triglyceride were tested. The commercially available enzyme-linked immunosorbent assay was utilized in serologic test of hepatititis B surface antigen (HBsAg), and antibody to HBsAg(anti-HBs). The preceived seroprevalence rates in the study were ranged 6.3~6.9%. The seroprevalences of HbsAg were 4.3~4.9% among the age of thirties, a significantly decreased seroprevalence compared with those among other age groups(in forties, 7.1~8.2%, and in fifties 7.1~7.6%). The positive seroprevalence of anti-HBs were 71.0~77.9%. A new case was not detected in the group.

• 지역사회간호학회지
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• 제13권3호
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• pp.423-432
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• 2002

This study was conducted to test the validity of characteristics of family nursing phenomena in Korea identified in a previous study by Yoon, S. Y, et al. (1999). Data for this study were collected from 355 (first measurement 186, second measurement 169) nurses whose family nursing careers were more than one year using a cross sectional survey method. The distribution per one characteristic ranged between 0 to 5. The phenomena that had two or more characteristics and had a score of 3.0 points or more included disturbance in marital role', 'disturbance in family communication', 'inappropriate family coping', 'lack of family intimacy', 'unhealthy life style', 'deficit of financial management skill and support', 'inadequate care management sick member', and' inadequate home-making'. The essential characteristics of the 8 phenomena presented above included 27 items. Further studies on family nursing phenomena in Korea are needed to support the evidence through surveys of families in the field. A reconfirmation study, as well as qualitative research on the low validity of the characteristics, needs to be more performed in the future.

• 한국환경보건학회지
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• 제30권3호
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• pp.293-299
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• 2004

Traffic represents one of the largest sources of primary air pollutants in urban area. As a consequence, numerous abatement strategies are being pursued to decrease the ambient concentration of pollutants. A characteristics of most of the these strategies is a requirement for accurate data on both the quantity and spatial distribution of emissions to air in the form of an atmospheric emission inventory database. In the case of traffic pollution, such an inventory must be compiled using activity statistics and emission factors for vehicle types. The majority of inventories are compiled using passive data from either surveys or transportation models and by their very nature tend to be out-of-date by the time they are compiled. The study of current trends is towards integrating urban traffic control systems and assessments of the environmental effects of motor vehicles. In this study, a model of vehicle emission calculation by using real-time traffic data was studied. Traffic data, which are required on a street-by-street basis, is obtained from induction loops of traffic control system. It is possible that characteristics of hourly air pollutants emission rates is obtained from hourly traffic volume and speed. An emission rates model is allocated with a high resolution space by using geographic information system (GIS). Vehicle emission model was developed with a high resolution spatial, gridded and hourly emission rates.

• 한국직업건강간호학회지
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• 제16권2호
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• pp.158-167
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• 2007

Propose: To identify the effects of job stress for depression in clinical nurses. Method: The subjects were 304 clinical nurses in Busan Metropolitan City. Data was collected by questionnaire surveys using convenience sampling. The instruments used in this study were the short form of the Korean Occupational Stress Scale(KOSS-SF) and the Beck Depression Inventory-Korean Version Standard Ten(K-BDI STEN). Result: After adjusting potential confounders, we found that the group of 50~75% job stress score for interpersonal conflict was more likely to have depression than the group of less than 25%(OR=3.522, 95% CI 1.06~20.25). The group of equal or more than 75% job stress score for job insecurity was more likely to have depression than the groups of less than 25%(OR=9.413, 95% CI 4.00~71.03). The groups of equal or more than 75% and 50~ 75% job stress score for lack of reward was more likely to have depression than the group of less than 25%, respectively(OR=19.302, 95% CI 2.50~244.25; OR=38.201, 95% CI=6.25~344.45). Conclusion: To prevent depression in clinical nurses, we need to intervene job stress for insufficient job control, interpersonal conflict, job insecurity and lack of reward.

• Journal of Electrical Engineering and Technology
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• 제7권3호
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• pp.376-383
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• 2012

A number of scientific researches are currently being conducted on the potential health hazards of power frequency electric and magnetic field (EMF). There exists a non-objective and psychological belief that they are harmful, although no scientific and objective proof of such exists. This possible health risk from ELF magnetic field (MF) exposure, especially for children under 17 years of age, is currently one of Korea's most highly contested social issues. Therefore, to assess the magnetic field exposure levels of those children in their general living environments, the personal MF exposure levels of 436 subjects were measured for about 6 years using government funding. Using the measured database, estimation formulas were developed to predict personal MF exposure levels. These formulas can serve as valuable tools in estimating 24-hour personal MF exposure levels without directly measuring the exposure. Three types of estimation formulas were developed by applying evolutionary computation methods such as genetic algorithm (GA) and genetic programming (GP). After tuning the database, the final three formulas with the smallest estimation error were selected, where the target estimation error was approximately 0.03 ${\mu}T$. The seven parameters of each of these three formulas are gender (G), age (A), house type (H), house size (HS), distance between the subject's residence and a power line (RD), power line voltage class (KV), and the usage conditions of electric appliances (RULE).

• 동아시아식생활학회지
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• 제22권2호
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• pp.147-162
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• 2012

Abdominal obesity is an important factor of metabolic syndrome and is known as an independent risk factor of cardiovascular disease. The purpose of this study was to examine the fatty acid intake pattern as well as the association between fatty acid intake and abdominal obesity and hyperglycemia in Korean adults. This study was based on data from the Korea National Health and Nutrition Examination Surveys (KNHANES) I, II, III, and IV. After excluding subjects who had missing data for dietary intakes, anthropometric measurments, and laboratory tests, a total of 12,320 subjects aged 20~64y (5,266 men and 7,054 women) were included in the study. Trends in individual consumption of dietary fatty acids by year were analyzed by One-way ANOVA test, and the association between fatty acid intake and abdominal obesity and hyperglycemia was analyzed by logistic regression analysis after adjusting for age, energy intake, marital status, job, education level, alcohol intake, and smoking status. In men, intakes of TFA, SFA, MUFA, FUFA, and n-6 PUFA significantly increased with year. On the other hand, intakes of TFA, SFA and FUFA significantly increased with year in women. Logistic regression analysis showed that the risk of abdominal obesity was significantly associated with intakes of PUFA, LNA and n-3 PUFA in women. However, there was no association with any fatty acid intakes in men. The risk of hyperglycemia was significantly and positively associated with intakes of TFA, SFA, PUFA, and LNA in men, but, there was no significant association with any fatty acid intakes in women. These results show that abdominal obesity and hyperglycemia are significantly associated with individual intake of fatty acids, suggesting that fatty acid type may be associated with risk of abdominal obesity and hyperglycemia. Futher, the macronutrients of measl must be properly balanced.

• Child Health Nursing Research
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• 제8권2호
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• pp.152-163
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• 2002

This study was done to provide basic data to develop smoking prevention and non-smoking education program. Questionnaire were collected from 438 male, 474 female middle school students at Chunchon, Kwangwon-do from Sep 2, 2000 to Feb 28, 2001. The Questionnaire used to measure subjects' knowledge and attitude about smoking was Guideline for the content of tobacco smoking surveys of the general population by WHO. The collected data were analyzed by SPSS-Win program. The results were as follows. 1.The average score of knowledge about smoking of subjects was 57.01 on the basis of 100. 2. The average score of attitude about smoking of subjects was 63.54 on the basis of 100. 3. In knowledge about smoking, there were statistically significant difference according to subjects' grade(F=3.218, p=.041), thinking about smoking behavior(F=3.424, p=.017), harmfulness of smoking(F=17.202, p=.000), present drinking(F=3.555, p=.029) and in attitude about smoking, there were statisti cally significant difference according to subjects' grade(F=20.520, p=.000), sex(t= -5.073, p=.000), mother's smoking(t= -2.405, p=.035), brother's smoking(t= -5.022, p=.000), mother's schooling(F= 3.730, p=.024), having smoking friend or not (t=-9.357, p=.000), subjects' smoking experience (t=-12.363, p=.000), present smoking(F= 76.643, p=.000), quantity of smoking(F= 6.808, p=.001), period of stop smoking(F= 4.685, p=.004), beginning time of smoking (F=2.286, p=.049), thinking about smoking behavior(F=17.933, p=.000), harmfulness of smoking(F=58.360, p=.000), present drinking (F=58.071, p=.000). 4. There were significant relationship between subjects' knowledge and attitude about smoking(r=.469, p=.000).

• Tuberculosis and Respiratory Diseases
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• 제83권4호
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• pp.268-275
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• 2020

Background: It is not evident that the attributable risk of smoking on mortality in Korea has decreased. We investigated the impact of smoking on all-cause mortality and estimated the attributable risk of smoking in Korean adults. Methods: Those aged ≥20 years with smoking history in the Korean National Health and Nutrition Examination Surveys (KNHANES) 2007-2015 were enrolled. We categorized the participants into three groups as follows: never smoker, <20 pack-years (PY) smokers, and ≥20 PY smokers. We applied inverse probability weighting using propensity scores to control various confounders between the groups. All-cause mortality risks were compared between the groups using the Kaplan-Meier log-rank test. The effects of smoking-attributable risks (ARs) on mortality were also calculated. Results: A total of 50,458 participants were included. Among them, 19,334 (38.3%) were smokers and 31,124 (61.7%) were never smokers. Those with a smoking history of 20 PY or more (≥20 PY smokers), those with a smoking history of less than 20 PY (<20 PY smokers), and never smokers were 18.1%, 20.2%, and 61.7%, respectively, of the study population. Smokers had a higher risk of all-cause mortality compared to never smokers (log-rank test p<0.01). The ARs of smoking were 21.8% (95% confidence interval [CI], 5.7%-37.9%) and 9.0% (95% CI, 6.1%-12.0%) in males and females, respectively. ARs decreased from 24.2% to 19.5% in males and from 9.5% to 4.1% in females between 2007-2010 and 2011-2015. Conclusion: Our study using KNHANES IV-VI data demonstrated that smoking increased the risk of all-cause mortality in a dose-response manner and the ARs of smoking on mortality were 21.8% in males and 9.0% in females during 2007-2015. This suggests that the ARs of smoking on mortality have decreased since around 2010.

• 한국융합학회논문지
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• 제11권3호
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• pp.109-118
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• 2020

본 연구는 국민건강영양조사(2016-2017) 결과를 바탕으로 한국 성인의 우유 및 유제품 섭취와 신체활동 실천 여부에 따른 대사증후군 유병률을 연령, 성별을 보정한 후 우유 및 유제품을 하루 권장량 이상 섭취하며 규칙적인 신체 활동을 함께 한 대상자와 그렇지 않은 대상자를 분류하여 로지스틱 분석을 통해 대사증후군과의 관련성을 확인하였다. 본 연구의 대상자는 모두 1,251명으로 남성은 444명, 여성은 807명, 평균 연령은 43.31 ± 12.13세였다. 우유 및 유제품을 권장섭취량 이상 섭취하며 신체활동 하는 대상자에 비해 우유 및 유제품을 기준 분량 미만으로 섭취하면서 신체활동을 하지 않은 대상자는 대사증후군 (OR 1.85, 95% CI 1.13 - 3.15)과 저 HDL-콜레스테롤혈증(OR 1.52, 95% CI 1.07 - 2.18)의 유병률이 증가하였다. 즉, 우유 및 유제품 섭취와 신체활동은 대사증후군을 예방하는 경향을 보이며, 이러한 연구 결과는 향후 관련된 연구 및 국가 정책에 기초자료를 제공할 것으로 판단된다.