• Journal of Environmental Health Sciences
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• v.41 no.6
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• pp.449-457
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• 2015

Objectives: In Korea, the system of management of medical waste largely relies on the incineration method. Our study aimed to identify any regional imbalances between the generation and treatment of medical waste, and provide reference data for future policy in Korea. Methods: We analyzed data on the amount of medical waste from 2,000 hospitals in 2012, 2013, and 2014 obtained from the Korea Environment Corporation. In the Arc GIS program (version 10.2.3), the addresses of hospitals and incinerators were transformed into map coordinates. The amount of waste generated by each hospital and the amount incinerated were represented by density and size of a triangle symbol, respectively. Results: As of 2014, the total amount of medical waste from the top 2,000 hospitals was 136,073 tons, out of which about half (49%) was generated in the capital area. Eleven incineration companies (three in the capital area, two in the Chungcheong Provinces area, one in the Jeolla Provinces area, and five in the Gyeongsang Provinces area) treated this waste. For the years 2012, 2013, and 2014, about 60% of the medical waste generated from the hospitals in the capital area was treated within the capital area and about 40% was transported to other areas, especially the Gyeongsang Provinces area, for treatment. On the other hand, about 90% of the medical waste incinerated in the capital area originated from the capital area. Conclusion: Our results suggest a spatial imbalance between the generation and treatment of medical waste in Korea and warrants multilateral policies, including the expansion of on-site treatment, strengthening regulation of the containment of medical wastes, promoting reductions in medical waste and more.

• Child Health Nursing Research
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• v.4 no.1
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• pp.97-104
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• 1998

Burns in children result in the loss of precious life, or if the child survives, in much suffering from physical, emotional, social, and economic problems. These burn accidents to children happen in the bustle of family life and frequently without any warning. With this background information, this study was designed to identity types of burns in children and mothers' attitudes towards, and knowledge of burn prevention, in order, to not only, in still a safety consciousness regarding the seriousness of burn accidents and the strengthening prevention, but also as basic data towards the development of an educational program aimed at prevention. From May 1 to May 25 in 1997, data were collected from the mothers of children attending five day care centers and kindergartens located in Seoul, which had been selected for the study. The tools used for the study, which were developed by the researchers, surveyed the type of burns suffered by children, mothers' knowledge of burns and attitudes toward burn accidents. The data were analyzed through real numbers percentages and analysis was done using SPSS computer programs. The results of the study show that the most frequent type of burn accidents were those caused by hot water(55.4%) and these were frequently related to everyday habits that easily lead to danger. Further, the first aid treatment following a burn was weak. The majority of the mothers had not instructed their children on who to contact in the case of a fire, first aid for burns, or how to take escape in the case of a fire. This left the children in a defenseless position in case of a fire. The mothers showed a lack knowledge, on what to do when a blaze is discovered, how to put out a fire, first aid for burns, escaping from a fire and appropriate water temperature, in that 50% of the time they answered incorrectly. From this study a prevention program, HIPP (Home Injury Prevention Program) could be developed that includes fire prevention habits and first aid for burns. This program can be used with kindergarten and elementary school children for group education on fire prevention and can be used as a foundation for construction of a system of facilities and equipment to prevent fires and also prevent injury from fires.

• Journal of the Korean School Mathematics Society
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• v.6 no.1
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• pp.1-17
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• 2003

In this paper, we study the methods of improving an ability of a creative solving mathematical problem belonging to an educational system which every province office of education has adopted for the mathematically talented students. Especially, we give an attention on a preferential reaction in teaching styles according to student's LQ., the relationship between student's LQ. and an ability of creative solving mathematical problems, and seeking for an appropriative teaching methods of the improvement ability of a creative solving problem. As results, we have the followings; 1. The group having excellent students who have a higher intelligential ability prefers inquiry learning which is composed of several sub-groups to a teacher-centered instruction. 2. The correlation coefficient between student's LQ. and an ability creative solving of mathematical is not high. 3. Although the contents and the model of thematic inquiry learning don't have a great influence on the divergent thinking (ex. fluency, flexibility, originality), they affect greatly the convergent thinking - a creative mathematical - problem solving ability. Accordingly, our results show that we should use a variety of mathematical teaching materials apart from our regular textbooks used in schools to improve a creative mathematical problem solving ability in the process of thematic inquiry learning. Also we can see that an inquiry learning which stimulates student's participation and discussion can be a desirable model in the thematic mathematical classroom activities.

• Journal of Korean society of Dental Hygiene
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• v.4 no.2
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• pp.135-151
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• 2004

The purpose of this study was to examine how much knowledge dental-hygiene students had about AIDS and how they looked at that. The subjects in this study were 370 freshmen, sophomores and juniors who were majoring in dental hygiene. The findings of this study were as follows : The rate of the students who were accurately aware of AIDS dissemination ranged from 59 to 92 percent. Those who knew that the disease didn't spread through routine daily contacts stood at 63 to 91 percent, and the students who were correctly cognizant of the cause of AIDS numbered 41 to 77 percent. Those who grasped the seriousness of that disease stood at 45 to 83 percent. The students weren't properly aware of how to prevent AIDS, as just 33 to 68 percent knew about that. Concerning connections between school year and AIDS knowledge, the sophomores had a better knowledge on its dissemination, cause and AIDS itself than the freshmen and juniors. As for attitude toward AIDS, 72.4 percent considered themselves not to be susceptible to that disease, but 361 percent felt that they were likely to develop it. 44.6 percent weren't afraid of being attacked by that disease, but more students feared about that possibility. Most of the students, who ranged from 77 to 88 percent, hoped to continue to be educated about that, and as many as 92 percent believed that AIDS patients should separatedly be treated. A lot of the students, which accounted for 90 percent, felt fear in the course of treatment, but 44 percent believed that AIDS patients should equally be treated, which indicated that they had a sense of responsibility. As to the relationship of school year to altitude toward AIDS, when their ideas about the danger of AIDS were asked, the freshmen and juniors considered themselves not to be susceptible to that disease more than the sophomores did, and the former group felt, more than the latter, that AIDS infection should be more thoroughly prevented than hepatitis in dental clinic. The juniors had a stronger tendency to find themselves to be exposed to AIDS as equally as most other people, compared to the freshmen and sophomores. The sophomores felt higher need for AIDS - related education, and had a stronger sense of duty about treating AIDS patients, and were more apprehensive of the disease in the course of treatment than the freshmen and juniors did. The above-mentioned findings suggested thai every individual should be cautious not to develop AIDS, as there is still no workable vaccine. Since the nation is not free from the horrible disease, the government should put more efforts into researching and preventing it. But what's most important is that dental-hygiene students, who will be committed to dental treatment in the future, should precisely be cognizant of the seriousness of that disease, and try to stay away from it by using protective devices and handling dental supplies properly. And the type of treatment system thai could prevent AIDS infection should be established.

• Transactions of the Korean Society of Automotive Engineers
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• v.20 no.1
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• pp.20-27
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• 2012

The $NH_3$-SCR characteristics of $NO_X$ over a V-based catalyst are experimentally examined over a wide range of operating conditions, i.e., $170-590^{\circ}C$ and $30,000-50,000h^{-1}$, with a simulated diesel exhaust containing $NH_3$, NO, $NO_2$, $O_2$, $H_2O$, and $N_2$. The influences of the space velocity and oxygen concentration on the standard-SCR reaction are analyzed, and it is shown that the low space velocity and high oxygen concentration promote the SCR activity by ammonia. The best $deNO_X$ efficiency is obtained with a $NO_2/NO_X$ ratio of 0.5 because of an enhanced chemical activity induced by the fast-SCR reaction, while at the $NO_2/NO_X$ ratios above 0.5 the $deNO_x$ activity decreases due to the slow-SCR reaction. The oxidation of ammonia begins to take place at about $300^{\circ}C$ and the reaction products, such as $N_2$, NO, $NO_2$, $N_2O$, and $H_2O$, are produced by the undesirable oxidation reactions of ammonia, particularly at high temperatures above $450^{\circ}C$. Also, $NO_2$ decomposes to NO and $O_2$ at temperatures above $240^{\circ}C$. Therefore, $NO_2$ decomposition and ammonia oxidation reactions deteriorate significantly the SCR catalytic activity at high temperatures.

• Journal of Oriental Neuropsychiatry
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• v.29 no.2
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• pp.111-119
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• 2018

Objectives: To investigate the characteristics of patients diagnosed with dementia or mild cognitive impairment who are treated by means of a blend between Western and Korean medicine. Methods: We searched for outpatients with dementia or mild cognitive impairment by means of a collaboration between Western and Korean medicine from August 1, 2015, to July 31, 2017, through electronic medical records in Wonkwang Hospital. The records were retrospectively analyzed according to the patients' demographic and clinical characteristics, pathway of medical care, diagnostic tests, treatment, and medical expenses. Results: Thirteen patients were included in the analysis. Among them, six patients were diagnosed with mild cognitive impairment, five with dementia, Alzheimer's type, one patient with frontotemporal dementia, and one patient with unspecified dementia. Twelve of the thirteen patients were over 60 years of age. The number of pathways from the Dept. of Neurology to the Dept. of Neuropsychiatry of Korean Medicine was almost the same as the opposite pathway. The most used diagnostic test in Korean medicine was a neuropsychological test such as SNSB, MMSE and GDS. In Western medicine, hematology and neuroimaging were frequently used for patients. Acupuncture in Korean medicine and medication in Western medicine were the most frequently used. In Korean medicine, uncovered service costs were much higher than covered service costs,. whereas, in Western medicine, covered service costs were higher than uncovered service costs. Conclusions: This study describes the basic characteristics of dementia and mild cognitive impairment patients treated by a collaboration between Western and Korean medicine. Based on these results, a clinical pathway of the collaborative practice system between Western and Korean medicine for dementia patients needs to be developed.

• Clinical and Experimental Pediatrics
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• v.52 no.6
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• pp.721-724
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• 2009

Meningococcal infections can be associated with abnormalities of the complement system, which contains 5 terminal complement proteins. Furthermore, deficiencies in 1 of these 5, complement component 7 (C7), leads to the loss of complement lytic function, and affected patients show increased susceptibility to recurrent meningococcal meningitis and systemic Neisseria gonorrhoeae infection. In September 2003, an 11-year-old female patient presented at our outpatient department with high fever, lower leg pain, headache, and petechiaes. She rapidly progressed to coma but later achieved full recovery due to prompt treatment. Her final diagnosis was meningococcal sepsis and arthritis. Her elder brother also had a similar bacterial meningoencephalitis history, which encouraged us to perform analyses for complement component and gene mutations. Resultantly, both the brother and sister were found to have the same mutation in the C7 gene. Subsequently, vaccinations of the meningococcal vaccine meningococcal vaccine ($Menomune^{(R)}$) were administered. However, in September 2006, the brother expired due to acute micrococcus meningoencephalitis. At present, the 16-year-old female patient is healthy. Here, we report a Korean family with a hereditary C7 deficiency with susceptibility to meningococcal infections due to C7 gene mutation.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.607-615
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• 2020

The purpose of this study was to analyze the research status and trends related to the industrial mathematics based on text mining techniques with a sample of 4910 papers collected in the SIAM Journal on Applied Mathematics from 1970 to 2019. The R program was used to collect titles, abstracts, and key words from the papers and to analyze topic modeling techniques based on LDA algorithm. As a result of the coherence score on the collected papers, 20 topics were determined optimally using the Gibbs sampling methods. The main results were as follows. First, studies on industrial mathematics were conducted in a variety of mathematics fields, including computational mathematics, geometry, mathematical modeling, topology, discrete mathematics, probability and statistics, with a focus on analysis and algebra. Second, 5 hot topics (mathematical biology, nonlinear partial differential equation, discrete mathematics, statistics, topology) and 1 cold topic (probability theory) were found based on time series regression analysis. Third, among the fields that were not reflected in the 2015 revised mathematics curriculum, numeral system, matrix, vector in space, and complex numbers were extracted as the contents to be covered in the high school mathematical curriculum. Finally, this study suggested strategies to activate industrial mathematics in Korea, described the study limitations, and proposed directions for future research.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.5
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• pp.489-498
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• 2018

The purpose of this study is to examine whether there is a difference in the awareness of death based on happiness (since attitude or way of life differs among the general public, depending on the perception of death), and to investigate whether there is a difference in the interest in hospices between a group with a high happiness index and a group with a low happiness index. A survey was conducted on 200 men and women aged over 20 who participated in a walking event held in a metropolitan city on April 22, 2017. The survey consisted of eight demographic items: gender, age, education, occupation, marital status, family cohabitation, religion, and health status. It included 29 questions regarding happiness and nine questions regarding the perception of death. For the statistical tests, a chi-square test, an independent sample t-test, correlation analysis, and canonical correlation analysis were performed on the items of the survey based on a happiness index. The results of the study showed that, for a suitable place for death, medical institutions was the highest score (46.3%) for the group with a low happiness index, and own house was highest (59.4%) for the group with a high happiness index. This was a significant difference. It is thought that management systems should be supplemented by professional manpower, educating people so as to increase the utilization rates of home-based hospice as a way for patients to die in a comfortable and familiar place because, for Korea, death is much more common in hospitals. It is also necessary to increase the awareness of death and to make effective use of hospices through individual and various other approaches, considering the demographics of the subjects.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.5
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• pp.577-586
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• 2018

In Korea, sustainability is mandatory in every field. University campuses are educational facilities that consume considerable amounts of energy. Therefore, many universities have tried to take advantage of the last opportunity to prepare students with sustainability and leadership. This study compared the green campus policy and evaluation criteria among Korea, US AASHE, UNEP, and ISCN-GULF to vitalize the green campus movement and suggest recent research data for the Korea green campus accreditation. The results are as follows: 1. new evaluation criteria need to be added to the certified green building total floor area ratio instead of adapting the G-SEED system in the Campus Resource & Environments category; 2. Korean Green Campus Evaluations need to be improved when expressing the campus individuality by choosing an increased number of credits and criteria; and 3. new evaluation criteria are required to secure the result, feedback, and products from curriculum updates in the Campus Education category.