• Journal of Korean Neurosurgical Society
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• 제64권4호
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• pp.543-551
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• 2021

Objective : Hemorrhagic stroke (HS) and hypertensive retinopathy are known end organ damage of the brain and eye respectively, with HS having deleterious consequence to the patients. This study is to correlate between hypertensive retinopathy and HS in hypertensive disease. Methods : A control group of hypertensive patients only, and an investigated group of hypertensive HS patients. Fundoscopic examination to determine the grade of retinopathy was performed and then divided into low or high severity hypertensive retinopathy. Clinical and radiological parameter included are demography, vital signs, Glasgow coma scale (GCS) on admission, clot volume, site of clot, Intracerebral hemorrhage (ICH) score and Glasgow outcome scale (GOS). Data were correlated with the severity of hypertensive retinopathy. Results : Fifty patient in the control group and 51 patients in the investigated group were recruited. In the hypertensive HS group, 21 had low severity retinopathy (no or mild retinopathy) accounting for 41.2% and 30 patients had high severity (moderate or severe retinopathy). In the hypertensive patients 49 had low severity and one had high severity (p-value of 0.001). In HS group low severity showed better GCS score of 9-15 on admission (p-value of 0.003), clot volume less than 30 mL (p-value 0.001), and also a better 30 days mortality rate by using the ICH score (p-value 0.006), GOS score of 4 and 5 the low severity retinopathy fair better than the high severity retinopathy (p-value of 0.001), and the relative risk to develop HS in low severity and high severity retinopathy was 0.42 and 29.4, respectively. Conclusion : Hypertensive retinopathy screening could be used as an indicator in hypertensive patient, to evaluate the risk of developing hypertensive HS in the future.

• 한국식품영양과학회지
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• 제27권5호
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• pp.1000-1006
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• 1998

The purpose of this survey was to study nutrition knowledge, dietary attitude, residences and purpose value of meal in the college freshmen. The survey was conducted from May 1 to May 25 in 1997. The results are summarized as follows. The female students showed higher scores than male students in nutrition knowledge score, but there was no difference in dietary attitude. Dietary attitude of the students living in home were higher than that of the other students. Female students tended to choose food for the pleasure of its taste. On female students, no difference was founded on nutrition knowledge and dietary attitude with purpose value of meal. The male students who have purpose value of meal on intake of nutrients showed the highest score in nutrition knowledge.

• 아태비즈니스연구
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• 제12권1호
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• pp.57-69
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• 2021

Purpose - The purpose of this study is to investigate the effect of macroeconomic conditions on the relationship between CSR and firm value. Design/methodology/approach - Employing KEJI index as a proxy for a firm's CSR activities, we investigate whether investors discount the value of CSR activity during the economic recession when a firm's bankruptcy risk is high and thus its future sustainability is suspected. Findings - Our empirical result represents that the value of a firm with high CSR score is undervalued during recession, reflecting investors doubt the sustainability of a firm whose CSR score is high when overall economy is exposed to high downside risk. Research implications or Originality - It implies that investors may not regard the CSR activities as an indicator of corporate sustainability. Also, the result represents that stable macroeconomic condition can be one of the important factors to make the CSR activity increase a firm's value.

• 유통과학연구
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• 제16권5호
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• pp.31-43
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• 2018

Purpose - We examine how a Korean retail firm's social responsibility is related to its financial performances. The traditional view of corporation expects a negative relationship, while the stakeholder theory expects a positive one. Research design, data, and methodology - We adopt the ESG score, published by Korean Corporate Governance Service to measure the level of socially responsible activity for the Korean retail firms. The ordinary least square method is adopted to investigate this relationship. The publicly traded retail firms are examined from 2011 to 2016. Results - We find that the total ESG score is negatively related to ROE but shows no statistically significant relationship with ROA and Tobin's Q value. However, a firm's environmental score is negatively related with both of ROE and ROA. Its social score is no conclusive relationship with the performance measures. The governance score is negatively related to the value of Tobin's Q. Conclusions - This paper generally supports the traditional view of corporate theory, especially in terms of ROE. This evidence is not well aligned with the existing study for Korean corporations generally documenting positive relationships. We find almost no empirical evidence supporting the stakeholder theory of corporation in the Korean retail industry.

• 한국방사선학회논문지
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• 제12권5호
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• pp.677-682
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• 2018

본 연구는 유방 전단파 탄성 초음파에서 탄성도 점수와 변형비를 이용한 방법이 양성과 악성병변의 감별진단에 유용한지를 평가하였다. 탄성 초음파를 시행한 224명을 대상으로 하였으며, 유방조직검사 결과를 바탕으로 후향적인 분석을 하였다. 유방 종괴의 양성과 악성에 따른 5단계의 탄성도 점수와의 동질성 비교는 Fisher's Exact test, 변형비와의 차이검증은 Mann-Whitney U test를 실시하였다. ROC 곡선분석을 통해 악성병변의 예측을 위한 탄성도 점수와 변형비의 최적 cut off 값을 결정하였다. 양성과 악성 결절 군의 분류에 따른 탄성도 점수의 동질성 비교와 변형비의 차이검증 결과에서 각각 통계적으로 유의한 차이를 보였으며(p=.000), ROC 곡선분석에서 양성과 악성 결절의 예측을 위한 탄성도 점수와 변형비의 AUC 0.824, 0.806, cut off 값 3, 4.4로 결정되었다(p=.001). 따라서 탄성도 점수와 변형비는 유방 종괴의 감별진단에 도움을 줄 수 있을 것이다.

• International Journal of Internet, Broadcasting and Communication
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• 제15권3호
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• pp.94-102
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• 2023

Anomaly detection in human movements can improve safety in indoor workplaces. In this paper, we design a framework for detecting anomalous trajectories of humans in indoor spaces based on a variational autoencoder (VAE) with Bi-LSTM layers. First, the VAE is trained to capture the latent representation of normal trajectories. Then the abnormality of a new trajectory is checked using the trained VAE. In this step, the anomaly score of the trajectory is determined using the trajectory reconstruction error through the VAE. If the anomaly score exceeds a threshold, the trajectory is detected as an anomaly. To select the anomaly threshold, a new metric called D-score is proposed, which measures the difference between recall and precision. The anomaly threshold is selected according to the minimum value of the D-score on the validation set. The MIT Badge dataset, which is a real trajectory dataset of workers in indoor space, is used to evaluate the proposed framework. The experiment results show that our framework effectively identifies abnormal trajectories with 81.22% in terms of the F1-score.

• 한국의류학회지
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• 제29권7호
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• pp.978-986
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• 2005

The color of apparel products have a close relationship with the face skin colors of consumers. In order to extract the favorable colors which flatter to consumer's face skin colors, this study was carried our to classify the face skin colors of Korean females. The criteria that select new subjects who have the classified face skin colors have to be decided. With color spectrometer, JX-777, face skin colors of subjects were measured and classified into three clusters that had similar hue, value and chroma with Munsell Color System. Sample size was 324 Korean females and other new 10 college girls. Data were analyzed by K-means cluster analysis, ANOVA, Duncan multiple range test, Stepwise discriminant analysis using SPSS Win. 12. Findings were as follows: 1. 324 subjects who have YR colors were clustered into 3 face skin color groups. 2. Discriminant variables of face skin colors were 5 variables : b value of cheek, V value of forehead, L value of cheek, C value of forehead and H value of cheek by the standardized canonical discriminant function coefficient 1. 3. Hit ratio of type 1 was $96.8\%$, of type 2 was $94.9\%$, of type 3 was $100.0\%$ and mean of hit ratio was $96.9\%$ by canonical discriminant function of 5 variables. 4. With the unstandardized canonical discriminant function coefficient and constant, canonical discriminant function equation 1 and 2 were calculated. And cutting score and range of score of the classified types were computed. The criteria that select the new subjects were decided.

• 한국식생활문화학회지
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• 제11권5호
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• pp.621-634
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• 1996

This study was conducted to investigate the eating patterns of Korean men by analyzing the relation among their socio-demographic characteristics, value toward food and nutrition, and eating behavior. Nine hundred twenty nine Korean men were selected by the stratified random sampling method. The socio-demographic characteristics of the subjects had a significant influence on their value toward food and nutrition. After in their sixties had meals for physiological needs rather than for nutrition or preference. Highly educated people, professional workers, office workers and people in the higher incomes, placed a higher value toward food and nutrition. In addition, rural inhabitants had a significantly lower value toward food and nutrition. They mainly ate to satisfy their hunger. The subjects' eating behavior had a significant difference according to their socio-demographic characteristics. The aged and the less educated valued breakfast the most, and showed a preference for rice as the staple food. The rate of skipping meals for this group was low. The higher their income, their eating behavior score was equally high, while the primary industrial workers and rural inhabitants had a low eating behavior score. Value toward food and nutrition had a significant influence on eating behavior. Those that placed a high value toward food and nutrition showed a marked tendency to choose bread or noodles rather than rice. In addition, those who placed a high value on food and nutrition skipped fewer meals and had a higher eating behavior score.

• 대한지역사회영양학회지
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• 제5권3호
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• pp.502-512
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• 2000

A survey was conducted on 222 students in two elementary schools in rural areas, one was a rural small city and the other was in the countryside. By measuring their skin-foldness in 4 spots by caliper, the body fatness of 5 grades(BFGr) of the subjects was resulted as follows ; 28.0% of boys and 6.7% of girls were classified as obese the and 34.1% of boys and 31.1% of girls as overweight. Comparing by region, children in the small city seemed to be fatter than the ones in the countryside(21.7% vs. 17.2% as obesity). Comparing by gender, boys were fatter than girls(28.0% vs. 6.7% as obesity). When recategorizing body fatness from 5 grades(BFGr) into 3 groups(BFGp) as overweight group(obesity+overweight), normal and underweight group(underweight+severe-underweight), we observed no significant difference in childrens dietary habits and food intake frequencies by BFGp. Overweight and underweight groups enjoyed snacking before dinner more frequently than the normal group(42.1-59.3% vs. 31.5%). The subjects showed poor nutrition knowledge score with relatively high attitude score about weight control and dietary behavior score was a little lower than the attitude score. Nutrition education programs, like camps, should stress on childrens nutrition knowledge. BFGp related to obesity attitude positive, a very low level and the latter related to diet, exercise and fasting attitudes at positive levels. Therefore overweight children seemed to be motivated easily. Also the higher the in exercise-value score, the more increased was shown in exercise attitude at positive, very low level. Emphasizing exercise-value in camp programs might make childrens exercise attitude more positive. As strategies for a rural obesity camp program are being developed by obese and non-obese children. The camp would be held over summer vacation for 3 days(2 nights) at the participants expence not exceeding 50,000 won. Contents of the program cover nutrition knowledge, and exercise-value as well as cooking lessons, exercise practice, and self-esteem enhencement.

• 한국식품과학회지
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• 제5권4호
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• pp.210-214
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• 1973

한국 재래식 장류 및 개량식 제품과 중간 가공물인 메주와 koji-mix 및 원료 대두에 대한 아미노산 조성과 available lysine 함량을 분석하고 이로부터 각 제품의 단백질 품질평가를 시도하였으며 Eggum의 단백질 chemical score와 biological value 와의 상관회귀 방정식을 이용하여 각 제품 단백질의 대략적인 biological value를 추산하였다. 메주용 대두의 amino-N 함량은 총 질소량의 85%에 달하나 장류 제품에는 총 질소량의 약 75%의 amino-N 함량으로 감소하는 반면 $NH_3-N$ 과 기타 N-compounds 함량이 증가한다. 이중 가내제조된 간장은 예외적으로 낮아 총 질소량의 53%에 불과한 amino-N을 함유하고 있다. 장류제조에서 재래식 방법과 개량식 제품 단백질의 질적변화의 차이는 크게 나타나지 않으며, 메주제조 단계까지는 원료 대두단백질의 영양가가 크게 손상되지 않으나 사임 담금이후 후숙 분리과정에서 단백가가 크게 손상되어 제품의 단백가는 원료 대두 단백질의 약 1/2에 불과한 chemical score를 나타내며 약 $1/3{\sim}1/2$에 미달되는 낮은 lysine 가용도를 갖게된다.