• 근관절건강학회지
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• 제28권2호
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• pp.130-139
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• 2021

Purpose: This study was conducted to identify factors affecting health behavior related to particulate matter (PM) of among nursing college students. Methods: A cross-sectional survey design was used. Data were collected from 261 volunteering nursing college students from three universities via an online survey. The survey questions measured PM risk perception, self-care agency, and health behavior related to PM. The study was conducted from June 22 to August 21, 2020. The data were analyzed using descriptive statistics, independent t-test, ANOVA, Pearson's correlation coefficient and multiple regression analysis. Results: The factor with the greatest influence on health behavior related to PM was PM risk perception, followed by self-care agency and the frequency of going out. These variables explained about 41% of the types of health behavior related to PM. Conclusion: PM risk perception and self-nursing agency were found to be significantly correlated with health behavior related to PM. This result suggests that there is a need to develop an educational program for nursing students to improve PM risk perception and self-nursing agency.

• 공업화학
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• 제17권2호
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• pp.119-124
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• 2006

물 속에 존재하는 자연 유기물의 성분은 계절과 장소에 따라 다양하게 변하므로 이들 성분에 대한 고찰과 이들이 환경에 미치는 영향을 고찰할 필요가 있다. 본 총설에서는 물 속에 존재하는 휴믹 물질, 탄수화물, 단백질(아미노산), hexosamine, 유지, 오일, 그리스 및 미량 유기물질(내분비교란화학물질과 의약품) 등의 자연 유기물의 특성을 정리하였다.

• Tuberculosis and Respiratory Diseases
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• 제83권2호
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• pp.116-121
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• 2020

Particulate matter (PM) is suspended dust that has a diameter of <10 ㎛ and can be inhaled by humans and deposited in the lungs, particularly the alveoli. Recent studies have shown that PM has an adverse effect on respiratory diseases. The aim of this article is to review respiratory diseases associated with PM. According to existing studies, PM is associated with chronic obstructive pulmonary disease, bronchial asthma, and several other respiratory diseases and increases the mortality rates of these diseases. Moreover, increased exposure in the high concentration of atmospheric PM is associated with the development of lung cancer. The most simple and common way to protect an individual from airborne PM is to wear a face mask that filters out PM. In areas of high concentration PM, it is recommended to wear a face mask to minimize the exposure to PM. However, the use of N95 or KF94 masks can interfere with respiration in patients with chronic respiratory diseases who exhibit low pulmonary function, leading to an increased risk of respiratory failure. Conclusionally, reduction of the total amount of PM is considered to be important factor and strengthening the national warning notification system to vulnerable patients and proper early management of exacerbated patients will be needed in the future.

• 호스피스학술지
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• 제5권1호
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• pp.50-62
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• 2005

The elderly people was over 8.3% in 2003. This seament is projected to grow to 14.4% by 2019(Aged society) and over 20% by 2026(Super aged society). As the elderly population is increasing and young population is declined social issues around elderly care are emerged in Korea. As a result of that, they are in the condition of poor system of the welfare of the old and it is the worst one in Korea. And because of the worst financial independence and difficulty in Korea, welfare facilities and medical instruments are so insufficient and deteriorated, so the quality of service is getting low. Furthermore the mortality of cancer is rapidely increased in recent years. So it is expected that the number of families who are caring for terminal cancer patient will be increased. We can not solve those problems only with government's policy such as to secure ample budget and to enlarge the aged welfare institutions. Definitely, to acheve the suggetions persistence concern about old people is most important, and family, community and national government should be linked to accomplish to goal. Accordingly, for this study attempts to provide conceptual framework of the respite care, spiritual care and home hospice, nursing home for the elderly. And this study is to discuss the necessity and effect about the construction of housing welfare infrastructure and to make a cooperation and linkage system among the aged welfare institutions, government and the aged welfare programs. As is well known, the issue of the increasing aged people is neither a matter of individuals nor of the family, but rather a complex matter of whol society. Therefore it can be resolved by the active participation of government. Conclusively this study tries to provide an direction of the improvement with regard to the welfare policy for the elderly. The study is as follwos: Chapters 1: The theological base, conception, essentiality, respite care, spiritual care and home hospice, nursing home for the elderly. Chapters 2: Definitions of respite care, spiritual care, hospice, patient of termina cancer and quality of life. And relations between respite care and nursing home. Chapters 3: The necessity of long-term care insurance and the perspectives of spiritual care. Chapters 4: Conclusions and summarizing(The directions of improvement of welfare policy for the elderly). To sum up, the problems of the aged people has not effects only to the aged people. This means that the problems of aged is the problems of the young generation today. Because young generation will be the old generation in the near future.

• Tuberculosis and Respiratory Diseases
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• 제85권3호
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• pp.237-248
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• 2022

Background: We evaluated the effect of particulate matter (PM) and cigarette smoke extract (CSE) on bronchial epithelial cell survival, as well as oxidative stress and autophagy levels. Moreover, we aimed to assess the effect of the antioxidant N-acetylcysteine (NAC) on the adverse effects of PM and CSE exposure. Methods: Normal human bronchial epithelial cells (BEAS-2B cells) were exposed to urban PM with or without CSE, after which cytotoxic effects, including oxidative stress and autophagy levels, were measured. After identifying the toxic effects of urban PM and CSE exposure, the effects of NAC treatment on cell damage were evaluated. Results: Urban PM significantly decreased cell viability in a concentration-dependent manner, which was further aggravated by simultaneous treatment with CSE. Notably, pretreatment with NAC at 10 mM for 1 hour reversed the cytotoxic effects of PM and CSE co-exposure. Treatment with 1, 5, and 10 mM NAC was shown to decrease reactive oxygen species levels induced by exposure to both PM and CSE. Additionally, the autophagy response assessed via LC3B expression was increased by PM and CSE exposure, and this also attenuated by NAC treatment. Conclusion: The toxic effects of PM and CSE co-exposure on human bronchial epithelial cells, including decreased cell viability and increased oxidative stress and autophagy levels, could be partly prevented by NAC treatment.

• 한국산업보건학회지
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• 제18권4호
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• pp.262-270
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• 2008

This study was conducted to measure concentrations of particulate matter ($PM_{10}$, $PM_{2.5}$) and endotoxin in thirty public facilities (7 elderly-care facilities, 4 hypermarkets, 4 university hospitals, 7 child-care facilities, 4 subway stations and 4 bus terminals) from September 2004 to February 2007 in Seoul and Gyeonggi-do province. $PM_{10}$ or $PM_{2.5}$ was measured with glass fiber filter and mini volume air sampler for 6 to 8 hours in indoor and outdoor of the facilities and expressed as ${\mu}g/m^3$. After weighing the filter, endotoxin was analyzed by Limulus Ameobocyte Lysate method ($EU/m^3$). $PM_{10}$ in indoor air was higher (GM and GSD was 78.00 and $1.92\;{\mu}g/m^3$, respectively) than the outdoor air (GM and GSD was 60.70 and $2.23\;{\mu}g/m^3$, respectively, I/O=1.28). All measurements was not exceeded the national maintenance standard. Elderly-care and child-care facilities showed relatively higher concentrations ($83.27\;{\mu}g/m^3$ and $81.75\;{\mu}g/m^3$; I/O=2.01 and 1.19, respectively) than hypermarkets or university hospitals. The highest PM2.5 was seen in child-care facilities ($62.15\;{\mu}g/m^3$, I/O=2.42). The I/O of the endotoxin in the PM10 and the $PM_{2.5}$ was exceeded 1.0 (1.37 and 1.57, respectively). Indoor $PM_{10}$ was affected by user/day and humidity, and endotoxin in the PM10 was affected by temperature. In conclusion, elderly- and child-care facilities are high priority facilities to be improved indoor air quality.

• 한국생활과학회지
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• 제13권5호
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• pp.711-721
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• 2004

This study is about the influences of the type of after school care and the degree of mothers' affection and monitoring toward their children on the psychological well being of children with working mother. For this research 437 children attending an elementary school with working parent were chosen. The major finding were as follows: First, the results of the findings on whether there were differences in the psychological well being of these children depending on the form of after school care showed that there were significant differences between loneliness and self-perceives competence felt by children. Second, the results of the findings on whether there were differences in the psychological well being of these children depending on the mother's affection and monitoring showed that there were significant differences between loneliness and self-perceives competence felt by children. Third, Multiple regression analysis shows, no matter what type of care a child gets, a mother's affection is the most effective variable which influence toward a child's psychological well being.

• 한국응급구조학회지
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• 제24권1호
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• pp.37-55
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• 2020

Purpose: The purpose of this study was to provide basic data for improving the response capacity of 119 EMS systems by analyzing the effects of particulate matter on cardio-cerebrovascular and respiratory symptoms in the pre-hospital stage. Methods: We examined 46,389 patients who transferred to the hospital with complaints of cardiopulmonary arrest and cardio-cerebrovascular and respiratory symptoms by 119 ambulances in Incheon from 2016 to 2018. Results: The probability of 119 emergency dispatch for patients with cardiopulmonary arrest increased 2.8-4.0% from the day of symptom onset until two days before hospital presentation as particulate matter 10㎛ or less in diameter(PM₁₀) increased by 10㎍/㎥ (OR=1.028; 95% CI=1.014-1.041, p=0.000, lag 0), (OR=1.040; 95% CI=1.024-1.056, p=0.000, lag 1), (OR=1.032; 95% CI=1.016-1.049, p=0.000, lag 2). Meanwhile, emergency dispatch increased 3.6-6.1% for PM_2.5 in creased by 10㎍/㎥ (OR=1.046; 95% CI=1.024-1.068, p=0.000, lag 0), (OR=1.061; 95% CI=1.035-1.088, p=.000, lag 1), and (OR=1.036; 95% CI=1.010-1.063, p=0.006, lag 2). Conclusion: Emergency medical technicians (EMTs) who respond to 119 calls should rapidly and accurately evaluate patients and provide professional emergency care by identifying the characteristics of the vulnerable groups relative to particulate matter size. To prevent the occurrence and exacerbation of symptoms caused by particulate matter, EMTs should be prepared and equipped with a response system for high particulate matter in the EMS system.

• Investigative Magnetic Resonance Imaging
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• 제17권2호
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• pp.123-132
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• 2013

목적 : 정상인 경수에 대한 내부 부위별, 경수 레벨별 확산텐서영상과 뇌척수액 속도에 대한 정상인 기준을 마련하고자 하였다. 대상 및 방법 : 정상인을 대상으로 3T MRI를 이용하여 영상을 획득하였다. 확산텐서영상은 척수 레벨별로 각각 미리 정의해둔 백질의 후삭, 좌, 우 측삭과 회백질에 관심영역을 정하여 FA, MD에 대한 평균값을 구하였다. PC 기법을 이용한 뇌척수액 속도 측정은 C2-3, C4-5, C5-6 척수레벨을 각각 스캔한 후, 척수 레벨별 최대 수축기 및 이완기 속도를 측정하였다. 결과 : FA 값과 MD 값에서 회백질과 백질의 내부 구조 사이에서는 통계적으로 유의한 차이 (p < 0.05)를 보였다. 경수 레벨별에서는 회백질의 FA 값에서 통계적으로 유의한 차이(p < 0.05)를 보였으며, 나머지 부분에서는 통계적으로 유의한 차이를 보이지 않았다 (p > 0.05). 뇌척수액 속도 측정 결과, 평균 최대 수축기 속도 $5.18{\pm}2.00cm/sec$, 평균 최대 이완기 속도 $-7.32{\pm}3.18cm/sec$ 이었으며, 경수 레벨별로는 통계적으로 유의한 차이를 보이지 않았다 (p > 0.05). 결론 : 정상인에 대한 경수 확산텐서영상의 정량적 수치 및 경수 레벨에 영향을 받지 않는 뇌척수액 속도에 대한 평균치를 알 수가 있었다.

• 한국환경보건학회지
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• 제45권1호
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• pp.30-41
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• 2019

Objectives: The effects of particulate matter and ozone on health are being reported in a number of studies. These effects are likely to be stronger on the elderly population, but studies in this regard are scarce. The purpose of this study was to examine the effects of particulate matter ${\leq}2.5{\mu}m$ and ozone on the acute health status of the elderly population. Methods: In order to analyze the health status of the elderly population, the NHIS-Senior Cohort data was used. In this study of people 60 years or older in Seoul, the number of outpatient visits and ER visits between 2002 and 2013 were calculated. Each disorder and the lag effect were analyzed separately. Particulate matter and ozone were analyzed using both the single exposure model and the adjusted multi-exposure model. Results: In the single exposure analysis with PM2.5 as the exposure variable, with each increase of $10{\mu}g/m^3$, the number of outpatient visits increased by 1.0081 times, vascular disease 1.0065 times, chronic pulmonary disease 1.0086 times, and diabetes 1.0055 times. In the multi-exposure model adjusting for ozone, the number of outpatient visits increased by 1.0066 times. There was a one-day lag effect and 1.0066 times increase between PM2.5 and ER visits in the multi-exposure model and 1.0057 times when adjusted for ozone (p value <0.10). There was a one-day lag effect in all multi-exposure models with ozone as the main variable, and when the particulate matter was adjusted, there was a one-day delay and 1.0143 times increase in ER visits. Conclusions: In our study, an increase in the number of outpatient and ER visits in the elderly population in accordance with the increase in PM2.5 and ozone was found. The association found in our study could also produce a socioeconomic burden. Future studies need to be performed in regards to younger populations and other air pollutants.