• 대한치과의사협회지
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• 제42권2호통권417호
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• pp.101-107
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• 2004

• 여성건강간호학회지
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• 제8권1호
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• pp.96-105
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• 2002

The purpose of this study is to identify the relation between functional limitation, functional disability and back pain during pregnancy. Data was collected by interview or self-report from 66 pregnant women between the gestational ages of 17 and 22 weeks who had experienced back pain from February 17 through July 28, 2001. The results of this study are as follows; 1. The prevalent mean week of back pain starting during pregnancy was 12.8. The mean pain intensity scores on the VAS during the past week and now were 5.6 and 3.7. The mean score on the functional limitations was 38.9. The mean score on the functional disability was 19.7. 2. The pain intensity on the past week was correlated with the pain intensity now (r=.339, p<0.01) and the functional limitations (r=.251, p<0.05). The pain intensity now was correlated with the functional limitations (r=.295, p<0.05) and the functional disability (r=.429, p<0.01). The functional limitations was correlated with the functional disability (r=.229, p<0.01). The higher pain intensity was the more functional limitation and functional disability occurred. 3. There was a statistically significant correlation between the pain intensity now and the type of housing (t=-2.051, p=.045), and back pain history before pregnancy (t=-2.429 p=.003). 4. There was a statistically significant correlation between the functional limitation and income (F=2.803, p=.047) and back pain history before pregnancy (t=-3.225, p=.002). There was a statistically significant correlation between the functional disability and back pain history before pregnancy (t=-3.058 p=.003). In conclusion, we found that a history of back pain was an important factor when predicting back pain and functional disability and limitation during pregnancy. The nurse and the prenatal educator should detect risk factors of back pain early in pregnancy and manage continuously though pregnancy.

• 한국전자통신학회논문지
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• 제8권2호
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• pp.371-378
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• 2013

본 연구는 대학생의 구강질환으로 인한 활동제한실태를 조사하고, 그 관련요인을 분석하여 구강건강향상을 위한 기초자료를 제공하고자 시도하였다. 연구결과, 대학생의 활동제한경험율은 24.1%, 평균활동제한일수는 0.44일이었다. 인구사회학적 특성에서는 주거형태, 개인적 특성에서는 일상생활의 분주도, 학비조달의 어려움, 구강진료이용 시 시간적 부담, 구강진료이용 시 교통편의 어려움이 대학생의 활동제한과 관련이 있었다. 학비조달의 어려움을 느끼는 경우에서 활동제한경험 및 와병경험, 학업수행지장경험, 학업손실경험의 가능성이 높게 나타났으며, 또한 구강진료이용 시 교통편의 어려움을 느끼는 경우에서 학업수행지장 및 학업손실을 경험할 가능성이 높게 나타났다. 이에 보다 체계화된 사회적 구강건강도를 확립하고, 구강건강증진을 높이기 위한 국가적 관심과 지원이 절실히 요구된다.

• 항공우주정책ㆍ법학회지
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• 제5권
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• pp.171-205
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• 1993

On the contrary to the general principle of private law, carriers' liability for passengers and cargo owners have been quantatively limited in some cases. The author traces the rule of liability limitation in the law of Korea and United States to verify two hypotheses. The first hypothesis is that the rule of liability limitation has been introduced to motivate investment when new technology with high risk has been adopted in business. The second hypothesis is that the rule of liability limitation can be maintained only when damages have been fully compensated. The former is a necessary condition for liability limation, and the latter sufficient condition. There are strong evidences for the first hypothesis. Navigation or aviation, artificial satellite lauching, urban transportation system are good examples. The second hypothesis is supported by the fact that there have been continuous controversies on the Warsaw System, including the failure of ratification of Montreal Additional Protocols No.3 & 4 by the U.S. Senate and voluntary removal of liability limitation by the Japanese airline companies. Loss of cargo can be compensated fully, but damages from personal injury and death not. The value of human body and life is not easy to be estimated. Passengers, moreover, do not usually buy insurance for accidents in travel. Passengers do not accept insurance premium as the cost of being whole and alive. They do not accept accident rates realistically. They have no bargaining power in dealing with insurers. The rule of liability limitation in personal losses would not be supported in future because damages have not fully compensated.

• 대한물리의학회지
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• 제19권2호
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• pp.99-106
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• 2024

PURPOSE: This study is a data analysis study to determine the physical health problems and reasons for disabilities and activity limitation rates that limit daily life and social activities among the elderly population aged 75 or older in Korea. METHODS: This study data was extracted from the raw data of the 7th National Health and Welfare Survey (2016-2018). The subjects of this study were 1,995 elderly people (823 men, 1,172 women) aged 75 years or older. The collected data were analyzed using frequency analysis and logistic regression analysis. RESULTS: From 2016 to 2018, the activity limitation rate among the elderly population aged 75 or older in Korea was 20.6% for men, 24.6% for women, and 23.1% overall. The three major diseases with the highest frequency of activity limitations were back and neck problems (36.5%), arthritis and rheumatism (28.7%), and knee and leg pain (14.7%). Activity limitation due to old age was found to be 13.1%, making it the fourth most frequent reason. The rate of activity limitations due to mental retardation and obesity was found to be 0%. The three major activity limitation rates were significantly related to gender. CONCLUSION: The main diseases causing activity limitations among the elderly population aged 75 or older in Korea were back and neck problems, arthritis and rheumatism, and musculoskeletal diseases such as knee and leg pain. Therefore, it is believed that it can be used as basis data for reducing the activity limitation rate of the elderly population in the aging era.

• Tuberculosis and Respiratory Diseases
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• 제63권6호
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• pp.480-485
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• 2007

연구배경: 만성폐쇄성폐질환은 여러 중요한 사망 원인 중 전세계적으로 유일하게 유병률이 증가하고 있는 질환이다 만성폐쇄성폐질환은 폐 이외의 다른 장기에도 영향을 끼치는 전신 질환으로 이해되고 있다. 본 연구는 폐활량 검사에서 기류 폐쇄 유무에 따른 호흡기 증상 빈도와 검사실 성적에 대해 알아보고자 하였다. 방 법: 2001년 국민건강영양조사와 같이 시행된 국가 단위 만성폐쇄성폐질환 유병률 조사에 참여한 대상으로 연구가 수행되었다. 본 연구는 폐활량 검사를 실시하여 GOLD 진단 기준으로 기류 폐쇄가 있는 대상과 없는 대상으로 구분하여 총 콜레스테롤, 혈액요소질소, 크레아티닌, 혈색소, 적혈구용적율, 공복 혈당, 고밀도 콜레스테롤, 중성지방의 평균값의 차이가 있는지를 알아 보았고 설문 조사를 통한 호흡기 증상의 빈도를 확인하였다. 결 과: 총 2,217명이 연구대상에 포함되었다. 이 중 GOLD 진단 기준에 따라 기류 폐쇄가 있는 대상이 288명, 기류 폐쇄가 없는 대상이 1,929명이었다. 호흡곤란을 느낀 적이 있다고 대답하였으나 기류 폐쇄의 유무에 따른 차이는 없었다. 기류 폐쇄가 있는 연구 대상들은 기류 폐쇄가 없는 대상들보다 객담, 기침, 천명음 등의 증상을 더 많이 호소하였다. 폐기능이 나쁠수록 호흡기 증상을 호소하는 연구 대상이 통계적으로 유의하게 더 많았다. 혈색소, 적혈구용적률의 평균값은 기류 폐쇄가 있는 군에서 더 높게 측정 되었으며 고밀도 콜레스테롤의 평균값은 기류 폐쇄가 있는 군이 통계적으로 낮게 측정 되었다. 총콜레스테롤, 중성지방, 혈액요소질소, 크레아티닌, 공복 혈당의 평균값은 기류 폐쇄 유무에 상관 없이 양군간에 차이는 없었다. 결 론: 기류 폐쇄가 없는 연구 대상에 비해 기침, 객담, 천명음과 같은 호흡기 증상의 경험 빈도가 많았고 혈액 검사에서 혈색소, 적혈구용적률의 평균값은 컸으며 고밀도 콜레스테롤의 평균값은 낮았다. 운동시 호흡곤란의 빈도, 총 콜레스테롤, 중성지방, 공복 혈당, 총 콜레스테롤, 혈액요소질소, 크레아티닌의 평균값은 기류 폐쇄의 유무와 상관 없었다.

• 해양환경안전학회지
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• 제28권4호
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• pp.459-468
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• 2022

천수만과 태안해역의 제한영양염을 평가하기 위해 장기자료 분석과 생물검정실험을 진행하였다. 우선 잠재적인 제한영양염을 평가하기 위해 국가수질측정망에서 제공되는 2004~2016년 동안의 장기 영양염 자료를 이용하였다. 장기자료의 DIN/DIP를 분석한 결과 대부분 16이하로 N 제한이 우세하였지만 N, P, Si의 농도비를 이용한 분석에서는 하계와 추계에는 N 제한이 우세하였고, 동계와 춘계에는 해역에 따라 일부 Si 제한을 보이거나 또는 제한이 나타나지 않았다. 생물검정실험 시 채집된 현장수의 영양염 분석결과, DIN/DIP는 3월과 5월에 모든 정점에서 P 제한을 나타냈고, 7월과 10월에는 N 제한이 우세하였다. N, P, Si의 농도비를 이용한 분석에서 3월과 5월은 P와 Si 제한을 보이거나 제한영양염이 나타나지 않은 정점이 존재하였으나 7월과 10월에는 N 제한이 우세하였다. 실질적인 제한영양염을 평가하기 위해 수행된 생물검정실험 결과 3월에는 특정 제한영양염이 나타나지 않았으나, 5월, 7월 10월에는 NH₄⁺와 NO₃^-가 반응을 보임으로서 이 시기에는 N이 식물플랑크톤 성장에 직접 관여하는 실질적인 제한영양염임을 확인하였다.

• Journal of Nutrition and Health
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• 제40권2호
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• pp.118-129
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• 2007

This study was performed to investigate the effect of lysine-limited diets containing different levels of L-carnitine on body weight and lipid metabolism in obesity-induced adult rats. Eight-month-old male Sprague-Dawley rats (n = 90) were raised for one month with high fat diet (40% fat as calorie) to induce obesity. After induction of obesity, rats weighing 739.5 g were randomly blocked into three groups according to the body weight and raised for eight weeks with control diet (Co), 50% lysine-limited diet (-L), 50% lysine limitation with 0.3% pivalate diet (-L + P). Each of three groups was allotted to 0.0% L-carnitine (0.0% CT), 0.5% L-carnitine (0.5% CT) and 2.5% L-carnitine (2.5% CT) groups, respectively. The levels of AST, ALT, total protein and albumin in plasma were within the normal range. Daily food intake and calorie intake tended to be lower in 2.5% CT groups than those of other groups regardless lysine limitation or pivalate intake. And body weight gain and calorie efficiency ratio (weight gain (g) /calorie intake (100 kcal)) were significantly the lowest in 2.5% CT groups among all experimental groups regardless of lysine limitation or pivalate intake. The weights of perirenal, epididymal fat pads and brown adipose tissue in 2.5% CT groups were significantly lower than 0.0% CT groups. Plasma total lipid, triglyceride, total cholesterol concentrations in all groups were not significant by experimental compound. HDL-cholesterol concentrations in -L + P +2.5% CT group were highest in -L + P groups. Levels of hepatic total lipid, triglyceride and total cholesterol in 2.5% CT groups were tend to be lower those than in 0.0% CT groups regardless of dietary lysine limitation and pivalate intake. Fecal total lipid excretions of 2.5% CT groups were significantly lower than in 0.0% CT groups in all experimental groups. But fecal triglyceride excretions of 2.5% CT groups were significantly higher than 0.0% CT groups regardless of lysine limitation and pivalate. In conclusion, there was no difference on body weight and lipid metabolism by dietary lysine limitation and pivalate intake. And feeding of 2.5% L-carnitine was more effective than feeding of 0.5% L-carnitine and 0.0% L-carnitine in reduction of body weight, body fat and lipid metabolism.

• 한국항공운항학회지
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• 제24권2호
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• pp.25-30
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• 2016

Obstacle defines all fixed and mobile objects, or parts thereof, that are located on an area intended for the surface movement of aircraft or extend above a defined surface intended to protect aircraft in flight or stand outside those defined surfaces and that have been assessed as being a hazard to air navigation. The airspace around airports are maintained free from obstacles so as to permit the intended aeroplane operations at the airports to be conducted safely and to prevent the airports from becoming unusable by the growth of obstacles around the airports. This is achieved by establishing a series of obstacle limitation surfaces or airspace imaginary surfaces that define the limits to which objects may project into the airspace. This is a case study that shows an application of obstacle limitation criteria, which must be maintained free from an critical obstacle, for specific conditions of two airports. For the purpose of the application, aeronautical studies/flight safety influence assessments were used to identify possible solutions and select a solution that is acceptable without degrading aviation safety.

• Tuberculosis and Respiratory Diseases
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• 제59권1호
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• pp.5-13
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• 2005

COPD는 비가역적인 기류제한을 특징으로 하는 질병의 상태이다. 이러한 기류제한은 유해입자나 가스등에 대한 폐의 비정상적인 염증반응과 관련되어 있고 자연경과 중 지속적으로 진행하는 양상을 띤다. 비정상적인 염증반응 및 단백분해효소와 항단백분해효소간의 불균형과 산화 스트레스 등의 기전에 의해 점액의 과분비, 섬모의 기능장애, 소기도의 섬유화와 협착, 폐실질의 파괴, 폐혈관손상 등이 발생한다. 이러한 병리학적 변화에 의해 기류제한이 발생하고 가스교환 장애, 폐고혈압, 폐성심, 전신적인 염증이나 골격근의 기능장애 등이 유발된다. COPD 환자의 일반적인 증상인 기침, 객담, 호흡곤란 등은 이러한 병태생리학적 변화로 설명할 수 있다.