• 유통과학연구
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• 제17권7호
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• pp.65-76
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• 2019

Purpose - The purpose of this study is to investigate economical ventilation effectiveness to reduce hazardous materials exposure and damage of workers by analyzing exposure amount of noxious substances under various ventilation conditions of nail salon for indoor environments. Research design, data, and methodology - This study was carried out with cooperation of Nail shop located in SeongNam city to involve an analysis of the environmental impact indoor air quality, pollutant exposure and economical cost-effectiveness in the nail workplace. The hazardous substances were PM-10(Particulate Matter-10㎛), VOCs(Volatile Organic Compounds) and Formaldehyde, which are the major materials of nail workplace. Results - PM-10 is reduced by about 60% with air cleaner, forced artificial ventilation by 32%, and natural ventilation by about 12%. TVOCs and Formaldehyde showed similar efficiency (80~100%) after natural ventilation and ventilation after 60 minutes. The removal efficiencies of VOCs and formaldehyde were similar to those of natural ventilation and mechanical ventilation system. However, in case of dust, natural ventilation was reduced by artificial ventilation system due to inflow of external dust during natural ventilation. Conclusions - If the pollution degree of outdoor air is not high, air volume is high, and natural ventilation is performed when the air conditioning and heating system is not operated. Even at the end of the work, it keeps operating for 60 minutes to remove the pollutants generated. Results of this analysis demonstrated that the worker environment can be improved by adopting institutional legislation and guidelines for ventilation.

• Safety and Health at Work
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• 제8권4호
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• pp.337-342
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• 2017

Background: Workplace violence (WPV) against healthcare workers (HCWs) employed in psychiatric inpatient wards is a serious occupational issue that involves both staff and patients; the consequences of WPV may include increased service costs and lower standards of care. The purpose of this review was to evaluate which topics have been focused on in the literature and which are new in approaching the concern of patient violence against HCWs employed in psychiatric inpatient wards, in the past 20 years. Methods: We searched for publications in PubMed and Web of Science using selected keywords. Each article was reviewed and categorized into one or more of the following four categories based on its subject matter: risk assessment, risk management, occurrence rates, and physical/nonphysical consequences. Results: Our search resulted in a total of 64 publications that matched our inclusion criteria. The topics discussed, in order of frequency (from highest to lowest), were as follows: "risk assessment," "risk management," "occurrence rates," and "physical/nonphysical consequences." Schizophrenia, young age, alcohol use, drug misuse, a history of violence, and hostile-dominant interpersonal styles were found to be the predictors of patients' violence. Conclusion: Risk assessment of violence by patients appeared the way to effectively minimize the occurrence of WPV and, consequently, to better protect mental HCWs. We found paucity of data regarding psychologic sequelae of WPV. According to these findings, we suggest the need to better investigate the psychologic consequences of WPV, with the aim of checking the effective interventions to assist HCW victims of violence and to prevent psychologic illness.

• 대한예방한의학회지
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• 제23권3호
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• pp.109-119
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• 2019

Background : Germany is the first country in the world to introduce modern systems of public health insurance, and the country which most widely uses complementary alternative medicine(CAM) in Europe. In early 21^st century, a large evaluation studies were conducted to include acupuncture in health insurance payments, which were eventually decided. Objectives : This study is to investigate and analyze the process of public policy determination on insurance coverage for acupuncture in German health insurance system. Methods : We collected the data and information through the literature search and from the websites of German government departments and health insurance organizations. To obtain contextual information, German experts of health insurance and acupuncture clinical study were interviewed. Results : As use of acupuncture had been growing, German public health insurers wanted to evaluate the validity of acupuncture coverage and sponsored three evaluation projects for clinical effectiveness of acupuncture using randomized clinical trials, systematic reviews, and pragmatic trials from 2001 to 2005. For some pain condition, acupuncture was founded not to be effective than sham acupuncture, but more effective than standard care. The federal joint committee of health insurance decided to cover acupuncture for chronic pain of lumbar spine and chronic pain in at least one knee joint due to gonarthrosis. Conclusions : Considering the controversial subject matter in the process of acupuncture's health insurance coverage in Germany, expanding the benefits of Korean medicine in Korea needs to come up with ways to overcome the difficulties of placebo effect, standardization and lack of literature evidence.

• 보건행정학회지
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• 제30권4호
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• pp.467-478
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• 2020

Background: The purpose of this study is to explain the factors influencing the incurrence of catastrophic health expenditure of national health insurance households using panel data observed over a long period. Methods: The study targeted 3,652 households who had no censoring during the 11-year survey period (2007-2017) and householders whose insurance type was consistently maintained as national health insurance. Generalized estimating equations were adopted to identify factors affecting the occurrence of catastrophic health expenditure at 20%, 30%, and 40% threshold levels. A subgroup analysis was conducted by categorizing groups depending on the existence of the elderly in the household. Results: For the last 11 years, the incidence of catastrophic health expenditure in the households without the elderly decreased slightly at all threshold levels, but the households with the elderly seemed to be increased. At baseline, household type showed a statistically significant relationship with all other variables. The results of generalized estimating equations analyses show that household income was not significant at all threshold levels in the households without elderly. On the other hand, in the households with the elderly, the 2nd (odds ratio [OR], 1.33-2.05) and 3rd quintile groups (OR, 1.25-2.55) were more likely to have catastrophic health expenditure compared to the 1st quintile of household income group. Conclusion: As the amount of health expenditures relative to the ability to pay is increasing in households with the elderly, the application of an intervention followed by consistent monitoring is needed. This study found that there were differences in influencing factors according to the presence of the elderly in the households. In particular, in households with the elderly, interesting results have been drawn regarding the occurrence of catastrophic health expenditure in the near-poor, so additional research is required.

• Journal of Dental Anesthesia and Pain Medicine
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• 제23권3호
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• pp.143-151
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• 2023

Background: Dental anxiety is a matter of serious concern to pediatric dentists as it may impede the efficient delivery of dental care. If not adequately resolved, a persistent negative response pattern may emerge. Thaumaturgy, commonly known as magic trick, has become popular recently. It is a tool that distracts and relaxes the child by using magic trick while the dentist performs necessary treatment. Hence, the aim of this study was to evaluate the effectiveness of Thaumaturgic aid in alleviation of anxiety in 4-6 - year-old children during administration of local anesthesia using the inferior alveolar nerve block (IANB) technique. Methods: Thirty children aged between 4-6 years with dental anxiety requiring IANB were included in this study. Patients were divided equally into two groups: Group I, thaumaturgic aid group and Group II, conventional non-pharmacological group using randomization. Anxiety was measured before and after using the intervention with Raghavendra Madhuri Sujata-Pictorial scale (RMS-PS), Venham's anxiety rating scale, and pulse rate. All the data were tabulated and compared using statistical analysis. Results: Children in thaumaturgy group (Group- I) exhibited significantly lower anxiety during IANB in comparison with children in the conventional group (Group- II) and the difference was statistically significant. Conclusion: Magic tricks are effective in reducing anxiety among young children during IANB; Moreover, it expands the arsenal of behavior guidance techniques for treatment of children with anxiety and plays an important role in shaping the behavior of a child in pediatric dentistry.

• 한국초지조사료학회지
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• 제16권1호
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• pp.61-68
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• 1996

Hehage production, botanical composition and soil chemical characteristics were investigated Ween new pastures and old pastures during grazing seasons from May 1993 to October 1994, to find out the condition of pastures grazed by horses on Chdu. Dry matter yields between new pastures and old pastures were 8,757kglha and 7,486kglha respectively. Plant heights of new pastures were 17.4cm. compared with those of old pastures of 12.lcm. The botanical composition of new pastures was composed of grasses about 402, legumes 7~14%, others 18-30% and dead materials 18~ 25%. whiie there were grasses 12%, legumes 3~7%, others 65% and dead materials 15% in old pastures. The contents of crude protein, phosphoms and sodium were lower in old pastures(l3.30, 0.24 and 0.10% respectively) than those in new pastures(l5.47, 0.28 and 0.14% respectively). There was no difference in ADF, NDF, Ca, Mg and K content between the 2 kinds of pastures. The chemical characteristics of the 2 kinds of pastures was shown to be similar, except available phosphorus, comparing 8.18ppm in old pastures with 84.43ppm in new pastures. Although the herbage yield and the soil characteristics of old pastures were lower than those of new pastures, we suppose that the old pastures would be improved, if taken good care of by methods such as oversowing and sometimes applying fertilizer.

• 한국식생활문화학회지
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• 제26권1호
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• pp.17-29
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• 2011

As the public is already aware, baby food has a significant effect on a baby's physical and mental health. It is also very important because choice of baby food forms proper eating habits, which will affect health in the future. In particular, recognition of appropriate baby food by the mother or the primary care provider is even more important. Although many studies have been conducted on this matter for domestic housewives, no studies have been conducted on married immigrant housewives whose numbers are increasing every year. A survey was conducted on the recognition and current situation of baby food preparation by mothers living in Gangwon Province with children 6 to 36-months-old. The purpose of the study was to research the level of understanding of baby food by immigrant housewives given that they were raised in different environments with different eating habits and child raising norms. And additional purpose was to provide proper educational material and direction for choosing appropriate baby food. The results showed significant differences depending on the nationality and age of the mother. Moreover, the results showed an insufficient understanding of baby food but a high desire for education, as mothers did not receive enough support from society. Therefore, necessary education should be provided systematically after mothers fully learn to communicate in Korean. These mothers need continuous attention and support, so they can settle in this country as wives, daughters-in-law, and mothers. Moreover, the needed professional education should be provided so that the mothers can learn traditional Korean eating habits and understand differences in the culture and environment between countries. As the selection of baby food forms the basis of future eating habits and the foundation for good health, proper education should be available to establish healthy intercultural families.

• 대한소아치과학회지
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• 제43권2호
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• pp.213-220
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• 2016

최근 들어 치아침식증(이하 침식증)의 유병률이 증가하면서 이에 대한 관심이 급증하고 있지만 아직 우리 사회나 치과계 내에서 인식이 부족한 상황이다. 침식증은 비가역적 치아 경조직 소실로, 방치될 경우 복합적인 문제를 야기할 수 있으므로 조기에 진단하여 질환의 진행을 예방해야 하며 특히 어린이와 청소년에 있어서는 조기 개입이 더 중요하다. 침식증은 다인자성 질환이므로 조기 진단을 위해서는, 위험인자에 대한 충분한 사전 지식을 갖추고 체계적인 임상검사와 철저한 병력청취가 필요하다. 주 원인요소가 파악되면 이를 가급적 제거하고 예방적 방법을 동원하여 질환의 진행을 막도록 노력한다. 치료는 치질 소실이 일정 기준 이상 되었을 때 시작하며 가장 덜 침습적인 방법을 선택해야 한다.

• 대한방사선기술학회지:방사선기술과학
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• 제45권2호
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• pp.127-134
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• 2022

In order to overcome the image quality limitations of the conventional C-arm, a flat panel detector (FPD) is used to enhance spatial resolution, detective quantum efficiency, frame rate, and dynamic range. Three-dimensional (3D) visualized information can be obtained from C-arm computed tomography (CT) equipped with an FPD, which can reduce patient discomfort and provide various medical information to health care providers by conducting procedures in the interventional procedure room without moving the patient to the CT scan room. Unlike a conventional C-arm device, a C-arm CT requires different basic safety and essential performance evaluation criteria; therefore, in this study, basic safety and essential performance evaluation criteria to protect patients, medical staff, and radiologists were derived based on International Electrotechnical Commission (IEC) standards, the Ministry of Food and Drug Safety (MFDS) standards in Korea, and the rules on the installation and operation of special medical equipment in Korea. As a result of the study, six basic safety evaluation criteria related to electrical and mechanical radiation safety (leakage current, collision protection, emergency stopping device, overheating, recovery management, and ingress of water or particulate matter into medical electrical (ME) equipment and ME systems: footswitches) and 14 essential performance evaluation criteria (accuracy of tube voltage, accuracy of tube current, accuracy of loading time, accuracy of current time product, reproducibility of radiation output, linearity and consistency in radiography, half layer value in X-ray equipment, focal size and collimator, relationship between X-ray field and image reception area, consistency of light irradiation versus X-ray irradiation, performance of the mechanical device, focal spot to skin distance accuracy, image quality evaluation, and technical characteristic of cone-beam computed tomography) were selected for a total of 20 criteria.

• 한국토양비료학회지
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• 제43권5호
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• pp.558-564
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• 2010

Cleaning up the landfill soil by phytoremediation in association with biomass production and utilization of biosolid as a soil amendment will be an attractive green technology. In order to examine this integrated green technology, in the current study of pot trial, heavy metal removal rate and biomass production were determined following cultivation of three different plant species in the landfill soil incorporated with biosolid at two different levels (25 ton $ha^{-1}$ and 50 ton $ha^{-1}$). Among the three plant species including Indian mustard (Brassica juncea), giant sunflower (Helianthus giganteus. L), and giant cane (Arundo donax. L), sunflower appeared to produce the largest biomass yield (19.2 ton $ha^{-1}$) and the produced amounts were magnificently increased with biosolid treatment compared to the control (no biosoild treatment). The increased production associated with biosolid treatment was common for other plant species and this was attributed to the biosolid originated nutrients as well as the improved soil physical properties due to the organic matter from biosolid. The elevated heavy metals in soil which was originated from the incorporated biosolid were Cu and Zn. Based on the phytoavailable amount of heavy metals from biosolid, the removed amount by plant shoots were 95% and 165% for Cu and Zn, respectively, when sunflower was grown. This indicated that mitigation of heavy metal accumulation in soils achieved by the removal of metal through sunflower cultivation enables the successive treatment of biosolid to soils. Moreover, sunflower showed heavy metal stabilization ability in the rhizosphere resulting in alleviation of metal release to ground water.