• Science of Emotion and Sensibility
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• v.25 no.2
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• pp.79-86
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• 2022

With external air pollution forcing many people indoors, new methods of facilitating healthier indoor life are necessary. This study, therefore, investigates the effects of indoor oxygen concentration and respiration methods on biosignals and cognitive ability. The study included twenty healthy subjects who inhaled air through a mask from a gas delivery system. All subjects were asked to perform three types of breathing (nasal, oral, and oral breathing with high oxygenation) and respond to cognitive stimuli (rest close eye, rest open eye, 1-back and 2-back working memory tasks). The changes in cognitive load according to respiration were analyzed by measuring response time, accuracy, and biosignals to stimuli. The result showed that, in all three respirations, heart rate significantly increased with the increase in cognitive load. Also, in oral respiration, the airway respiration rate significantly increased according to the increase in cognitive load. The change appeared to compensate for insufficient oxygen supply in oral respiration during cognitive activity. Conversely, there was no significant change in airway respiration rate during oral respiration with a high concentration oxygen supply as in nasal respiration. This result suggests that a high concentration oxygen supply might play a role in compensating for insufficient oxygen concentration or inefficient oxygen inhalation, such as oral respiration. Based on the results of this study, a follow-up study is necessary to determine the impact of changes in the autonomic nervous system, such as stress and emotions, to find out more precise and comprehensive effects of oxygen concentration and breathing type.

• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.273-279
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• 2017

Purpose: This study was conducted to identify factors associated with cataract and age-related macular degeneration in elders. Methods: In total, 341,588 men(44.18%,) and women(61.887%), aged over 60, were recruited from Korean National Health Insurance Service-Senior(2002-2013). We also analysed the factors which determine the prevalence of contract (ICD-10: H25) and age-related macular degeneration(ICD-10: H353) using Cox proportional hazard regression model Results: The subjects who were women, in older age, the group of higher income level, with hypertension, with heart disease, and with diabetes, the prevalence of both contract and age-related macular were increased(p<0.0001). Conclusion: The prevalence of contract and age-related macular degeneration were higher in old age of Korean who has chronic diseases such as hypertension, heart disease, and diabetes. The management of chronic diseases are essentially required in elderly for more healthy eye in aged society.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.5
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• pp.971-980
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• 2023

Safety accidents and industrial accidents are constantly occurring in existing industrial sites. In addition, the probability of accidents occurring due to physical and mental fatigue of workers is increasing. Accordingly, it is required to introduce systematic management and various systems for the safety of workers. In this paper, by developing an access control system using bio-metric information at industrial sites, we develop efficient health management and access control management functions for workers. Workers are identified through face recognition for access control, and health status is determined through iris recognition. It aims to improve accuracy and develop a more efficient management system by diagnosing signs of health abnormalities through the congestion of the iris and eyes of workers. Finally, the contents of the development consist of an on-site access control system, an access control program for administrators, and a main server system that diagnoses signs of abnormal health of users.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.89-92
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• 2015

최근 국내 유제품 수요는 인구의 고령화, 학교급식 소비의 감소, 대체음료 시장의 성장 그리고 출산율 저하라는 여러 가지 영향에 기인하여 줄고 있다. 반대로 수입 유제품의 수요, 특히 치즈에 있어서는 눈에 띄는 성장을 보여 국내 낙농업 시장은 안타까운 실정이다. 뿐만 아니라 공급에 있어서는 계절적인 원유 수급불안 현상, 수입증가, 농가이탈에 의한 생산기반의 위축으로 인해 안정적으로 국내 낙농업 시장의 활성화가 필요한 시점이다. 이 논문에서는 낙농가에서 가장 중요한 젖소의 건강 관리(발정기, 맥박감지)를 통합해 유량을 늘리는 방안을 제시하여 낙농업계의 활성화를 목표로 한다.

• Korean Journal of Ecology and Environment
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• v.39 no.1 s.115
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• pp.62-72
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• 2006

Biological health in aquatic environments has been assessed by several approaches using various bio-taxa. Especially, fish has been identified as one of the best ecological indicators for an integrative health assessments in aquatic environments. In this preliminary study, the necropsy-based approach using the Health Assessment Index (Adams et al., 1993; HAI, Blazer, 2000), was employed for the assessments of aquatic environments influenced by effluent water from wastewater disposal plants (WDP) near a urban stream (i.e., Cap-Stream). For the impact analysis from the effluents, we developed 10 metric necropsy-based model including $M_l\;skin,\;M_2\;fin,\;M_3\;thymus,\;M_4\;spleen,\;M_5\;hindgut,\;M_6\;kidney,\;M_7\;liver.\;M_8\;eyes,\;M_9\;gill,\;and\;M_{10}$ pseudobranch. We set up duplicate controls (natural upstream water plus 5 fishes in each control tank) and duplicate treatments (effluent water from the WDP plus 5 fishes in each treatment tank) in the laboratory. Preliminary results showed that HAI values in the controls were zero, indicating an excellent condition by the criteria of HAI, while the HAI values in the treatments ranged between 40 and 150, indicating a poor condition. Also, various health conditions, based on the index of biological integrity (IBI), species richness, tolerance guilds, and trophic guilds supported the HAI approach. The HAI approach, not applied in Korea, not may be used as an surrogate fer ecological health assessment in lotic ecosystems.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.11
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• pp.385-397
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• 2020

This study examined the reproductive health-related experiences of North Korean women defectors and their sexual knowledge, sexual attitudes, and reproductive health promotion behavior. Convergent parallel mixed methods were used. From April to July 2020, 8 North Korean women defectors in Seoul metropolitan area were recruited by snowball sampling. In addition, 175 participants in the Seoul metropolitan area, Chungcheong, and Gyeongsang Province were recruited. Content analysis was conducted to analyze qualitative data, and the SPSS 23.0 program was used. Three themes were derived: scared of sex due to ignorance', 'the embarrassing and annoying sex only for duty', and had to manage myself for sex under the limited situation.'. The subject's sexual knowledge was higher in the older and married groups, and the sexual attitude was more liberal in the younger group. Reproductive health promotion behavior was more active in the high economic level, and sexual knowledge and sexual attitude showed a positive correlation. Therefore, it is necessary to provide support systems and resources from the community to encourage reproductive health promotion activities. In addition, in terms of humanitarian aid, prioritization of the reproductive health of North Korean women is required.

• Journal of agricultural medicine and community health
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• v.34 no.1
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• pp.47-57
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• 2009

Objectives: The purpose of this study was to identify the health promotion behavior, health problem, perceived health status and farmers' syndrome of rural residents. Methods: The subjects of this study were 637 adults of 19 primary health care post extracted from 1.875 primary health care post in Korea by quota sampling method. The collected data were analyzed by descriptive statistics, Pearson's correlation. Results: The average score of health promotion behavior was 2.23. In the sub-scales, the highest degree of performance was 'nutrition', followed by 'spiritual growth' and the lowest degree of performance was 'physical activity'. The most prevalent health problem was ailments in 'musculoskeletal system', followed by 'fatigue', 'eyes and ears', 'cardiovascular system'. The mean score of perceived health status was 8.54. The prevalence of farmers' syndrome was 98.4%. Health promotion behavior showed a significant positive correlation health status and perceived health status showed a significant negative farmers' syndrome. Conclusions: With the above findings, rural residents' physical activity is less than urban residents', and the rural resident's score of perceived health status, musculoskeletal system and fatigue are lower than urban residents'. The farmers' syndrome of the rural people is high. A tailored health promotion program for rural community is needed to develop in the consideration of these findings.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.423-426
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• 2006

예방 의학에 대한 관심이 증대되고 있는 현대 생활에서 사상체질 진단을 통한 건강 유지는 누구나 쉽게 접근할 수 있는 방법 중에 하나이며, 이를 위해 사상의학(四象醫學)적 이론이 많이 사용되고 있다. 그러나, 사상의학에서 사상체질 진단 및 분류는 매우 중요한 과제로서 많은 학자들에 의해 연구되고 있으나 지금까지 객관적으로 인정된 방법이나 기술은 없다고 할 수 있다. 따라서 본 논문에서는 외형적 특징을 통한 사상 체질 분류를 연구하기 위한 목적으로 안면부의 형태학적인 특징을 도출하였다. 즉, 안면 영상에서 눈과 입을 추출하여 결과 영상과 사상체질 간의 상관성을 규명하기 위하여 안면 영상의 형태학적 분석을 이용한 사상체질의 판별을 시도하였다. 특히, 한방의 망진(望診) 방법에 근거하여 사상체질을 객관적으로 진단, 분류하기 위한 연구를 수행하였다. 최종적으로 실험에 의해 제안한 방법의 유용성을 입증하고자 한다.

• Proceedings of the Korean Environmental Health Society Conference
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• 2005.11a
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• pp.126-129
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• 2005

본 연구는 서울지역 초등학교 학생 4, 5, 6학년 남 ${\cdot}$ 녀 초등학생들을 대상으로 봄철 대기오염농도와 일별 자각증상 과의 관련성에 대한 패널연구를 수행하였다. 로지회귀분석방법 중 일반화 추정 방정식(generalized estimating equations:GEE)모델을 이용하여 통계분석을 실시한 결과로는 서울지역 초등학교 학생들은 호흡기 증상보다는 피부가려움이나 눈의 따가움 등의 자극증상에 호흡성먼지(PM10)와 아황산가스 그리고 이산화질소 등의 대기오염물질 농도와 관련성이 있는 것으로 추정되었다.

• Journal of Acupuncture Research
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• v.29 no.5
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• pp.39-50
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• 2012

Objectives : The purpose of this study was to identify the effects of self-acupressure on the visual health of college students. Methods : A nonequivalent control group pretest-posttest design was used. Participants were determined by OSDI(ocular surface disease index) and the Schirmer test, they were assigned to an experimental group of 22 and control group of 22. The experimental group participated in self-acupressure, which were practiced 2 times a day, 5 days a week for 4 weeks. Results : Scores of ocular surface disease index, Schirmer test and ocular fatigue were significantly better in the experimental group after the intervention compared to the control group. Conclusions : The result indicate that self-acupressure is an effective nursing intervention for improving the dry eye syndrome and decreasing ocular fatigue in college students.