• Journal of Korean Ophthalmic Optics Society
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• v.17 no.2
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• pp.241-247
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• 2012

Purpose: This study was conducted to assess the association of metabolic syndrome and its components with glaucoma. Methods: We investigated the associations of metabolic syndrome and its components (abdominal obesity, impaired fasting glucose, high blood pressure, and dyslipidemia) with glaucoma using data from 19,162 adults aged 40 or above among the Korean National Health and Nutrition Examination Survey III (2005), IV (2007-9), V (2010). The logistic regression analysis was used for assessing those associations after adjusting demographic, lifestyle, and social economic status and for assessing the association of metabolic medication intakes with glaucoma risks. Results: After adjusting for age and sex, the risk of glaucoma was significantly higher in the subjects with impaired fasting glucose(Odds Ratio (95% confidence interval): 1.78 (1.25, 2.53)) and metabolic syndrome (1.45 (1.01, 2.08)) than subjects without those. These associations increased when additional adjusting for smoking, alcohol use, regular physical activity, income, education status(impaired fasting glucose: 1.89 (1.29, 2.77), metabolic syndrome: 1.52 (1.03, 2.25)). Glaucoma prevalence was borderline significantly increased according to the number of metabolic abnormalities(age and sex adjusted p for trend = 0.055). Use of antihypertensive medication was significantly associated with the risk of glaucoma. Conclusions: Metabolic syndrome and impaired fasting glucose were significantly associated with the increased glaucoma risk. Use of antihypertensive medication was also significantly associated with the increased glaucoma risk.

• Transactions of the KSME C: Technology and Education
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• v.3 no.4
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• pp.265-271
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• 2015

The bonding process should be achieved in vacuum environment to avoid air bubble. In this study, we studied about pressure uniformity that became an issue in thermo compression bonding usually. Uniform press is realized by the method that use air spring and metal form spring. The concept of uniform press using air spring is removed except pressing direction in the press processing so angle between the vector of pressure surface and the pressure axis is parallel automatically. Air spring compensate the errors of machining and assembly. Metal form compensate the thermal deformation and flatness error.

• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.29-38
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• 2016

The purpose of this study is to investigate the relationship between Korean women's experience of anxiety & depression and socioeconomic level. We used Korea National Health and Nutrition Examination Survey VI-1 data. Study population were consisted of 3,453 female adults, and used a binary logistic regression analysis to identify the relationship between socioeconomic status factors and experience of anxiety & depression after adjusting health factors. It was identified the variables that affect experience symptoms of anxiety & depression is age, marital status, education, income level, economic activity, health condition and stress. Based on the analysis, Korean women's socioeconomic level and anxiety & depression experience concluded to be associated. Thus, the program for low income, unemployed and low educated level women is needed.

• Journal of the Korea Convergence Society
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• v.9 no.8
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• pp.71-76
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• 2018

The aim of this study was to evaluate the association between obesity and periodontal diseases in Korea adults. The date from the 2015 Korean National Health and Nutrition Survey were used, and 4,827 subjects over 19 years were included in the analysis. Periodontal disease was assessed using the Community Periodontal Index. Obesity was measured according to body mass index. Odd ratios (ORs) were estimated using binary logistic regression analysis model. The stratification variables were smoking and diabetes, and also adjusted for sex, age, and education level. The adjusting variables included sex, age, and education level. The ORs of obesity for periodontal disease were 0.78 (95% CI = 0.51-1.22) for the category of <18.5 of BMI and 1.29 (95% CI = 1.11-1.49) for the ${\geq}25$ BMI category (both compared to the 18.5 to 24.9 category). In a subgroup analysis, the OR of BMI among those who were both non-smoking and no diabetes was 1.20 (95% CI = 1.02-1.48) for those with BMI levels ${\geq}25$. This study implies that obesity intolerance may be an independent risk factor for periodontal diseases. Obesity should also be considered when managing periodontal disease to improve oral health.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.515-520
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• 2016

Volumetric image system has many applications recently in education, 3D movie, medical images but these applications have several problems that need to be overcome. Volumetric display may process a amount of visual data and design the high efficient vision system for realtime display. In case of stereo system for volumetric display motion vectors, disparity vectors from the stereoscopic sequences and residual images with the reference images has been transmitted, and the stereoscopic sequences have been reconstructed at the receiver for volumetric display. So central issue for the design of efficient volumetric image system lies in selecting an appropriate stereo matching and robust vision system. In this paper, we proposed high efficient vision system, which design vision stage with rotating and moving horizontally, and match the successive stereo image efficiently. In experimental results with volumetric image system, the proposed method represents high efficiency with minimizing error and low computational load for volumetric display.

• Korean Journal of Psychosomatic Medicine
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• v.27 no.2
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• pp.164-172
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• 2019

Objectives : The purpose of this study was to examine personality traits associated with suicidal symptoms (with history of suicide attempt or suicidal idea) in depressed patients. Methods : A sample 186 patients diagnosed with major depressive disorder was divided into two groups : suicidal group (with history of suicide attempt or suicidal idea, n=70) and non-suicidal group (without history of suicide attempt or suicidal idea, n=116). NEO Personality Assessment System were used to evaluate personality trait. Results : Neuroticism was high in suicidal group (p=0.041). In multivariate logistic regression, Neuroticism was also a significant influence on suicidal symptoms (Odds Ratio=1.04, 95% Confidence Interval 1.01-1.07, p=0.0145). Conclusions : High Neuroticism is a useful information to identify individuals at high risk of suicide in depressive patients.

• Journal of Korea Technology Innovation Society
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• v.16 no.2
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• pp.424-443
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• 2013

National Research Foundation of Korea (NRF) provides underpinning to boost international and domestic competitiveness in basic science and engineering (S&E) research. In 2012, NRF came up with the idea about implementing koreanized grant funding system and a NRF grant funding mechanism on basic research was applied to General Researcher program. The main components of the mechanism are 1) no final evaluation, instead intensive evaluation for next proposal submission, 2) no paper account report, instead reporting it online, 3) no lengthy final report, instead unloading a brief overview of research achievements. For successful establishment of the NRF grant funding mechanism, the quality and quantity-based quantitative guidelines of research achievement for various research areas are essential. In this study, we suggest 3 quantitative indexes and these quantitative guidelines provides a supplementary tool for researcher's capability review. These guidelines will be also useful to elevate the reliability and objectivity of peer review.

• Journal of Digital Convergence
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• v.14 no.9
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• pp.341-348
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• 2016

The purpose of this study was to investigate the association between masticatory ability and oral health-related quality of life using the Oral Health Impact Profile (OHIP-14) of the elderly. Total 195 elderly subjects were assessed for subjective masticatory ability, objective masticatory ability and OHIP-14 concerned with quality of life. When masticatory ability is low, the odds ratio(OR) of the quality of life is worse was increased. After adjusted age, residence, education, denture, odds ratio of subjective masticatory ability was 2.42(p<0.05) increased and odds ratio of objective masticatory ability was 7.58(p<0.001) increased. This study showed significant association between masticatory ability and the total OHIP-14 score of the quality of life of the elderly. Masticatory ability can affect quality of life oral health-related in elderly. While following up on various studies were carried out as a long-term, I hope it will be of help in improving the quality of life of the elderly with maintaining a healthy oral health.

• Journal of Digital Convergence
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• v.11 no.7
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• pp.157-163
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• 2013

In this paper, we propose a vision and depth information based real-time hand gesture interface method using finger joint estimation. For this, the areas of left and right hands are segmented after mapping of the visual image and depth information image, and labeling and boundary noise removal is performed. Then, the centroid point and rotation angle of each hand area are calculated. Afterwards, a circle is expanded at following pattern from a centroid point of the hand to detect joint points and end points of the finger by obtaining the midway points of the hand boundary crossing and the hand model is recognized. Experimental results that our method enabled fingertip distinction and recognized various hand gestures fast and accurately. As a result of the experiment on various hand poses with the hidden fingers using both hands, the accuracy showed over 90% and the performance indicated over 25 fps. The proposed method can be used as a without contacts input interface in HCI control, education, and game applications.

• Journal of Digital Convergence
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• v.13 no.5
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• pp.269-276
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• 2015

In order to examine the relationship between cholesterol level on serum and depression in Korean adults, this study used data of the fourth Korea National Health and Nutrition Examination Survey (KNHANES). 834 persons with depressive symptoms were selected as an index group and 3,317 persons without depressive symptoms as a control group, and odds ratios were calculated by multivariate logistic regression. As a result, odds ratio of depressive symptoms was higher in low LDL group (OR=6.435, 95% CI; 2,358-17.557) than in high LDL group adjusted after monthly income, marital status, period of education, occupation, smoking status, and physical activity. Etiopathogenic mechanism must be found by convergent study in the future.