• 한국임상수의학회지
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• 제38권1호
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• pp.1-6
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• 2021

Avian haemosporidia, including malarial parasites, are geologically and biologically widespread. The protozoal pathogen has been a subject of intensive research in the past, which has resulted in major medical progress. Haemosporidia infection in avian species in South Korea has been studied in wild birds and layer flocks, but not in pet birds. At the Veterinary Teaching Hospital of Chungbuk National University, 75 birds that presented for health check-up were tested to evaluate the infection rate of Haemoproteus, Plasmodium and Leucocytozoon in birds without clinical symptoms. Haemoproteus spp. and Leucocytozoon spp. were simultaneously detected in a Major Mitchell's cockatoo (Lophochroa leadbeateri) by polymerase chain reaction, representing 1.33% of the tested birds. Phylogenetic analysis suggested that the infective Haemoproteus and Leucocytozoon strains were similar to those detected in foreign countries rather than those detected in the wild birds of Korea. Although the infection rate may not be indicative of a substantial infection in healthy pet parrots, the import of infected birds can pose a threat by allowing foreign pathogens to infect the local wild flocks or livestock. This is the first surveillance study of avian haemosporidia in pet parrots in South Korea.

• 한국한의학연구원논문집
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• 제18권3호
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• pp.141-146
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• 2012

Objectives : KIOM(Korean Institute of Oriental Medicine) built up korean medical paper database and services it through information portal OASIS. The database are updated about 1,600 papers and 48,000 references annually. Because lots of manpower and time are needed to update database, it is very important to raise up efficiency and quality of it. Methods : In this paper, we implemented web based database building system utilizing pre-built OASIS' database to improve the working process, data quality and ease of management. Results : First we designed and implemented web based system to input bibliography of the paper efficiently. It raised efficiency using OASIS' paper and reference database. Second we improved the refining process using web based system to raise up data quality. And third we developed the manager functions of web based system to control and check the working process. Conclusions : If we add korean medical dictionary and link outside paper database in the future, we hope that work efficiency and data quality will be raised more. And because the database schema of OASIS system and developed system are different, we are implementing the data transformation system.

• 한국의학물리학회지:의학물리
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• 제26권2호
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• pp.87-92
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• 2015

호흡연동 래피드아크 치료는 무건운 하중의 선형가속기 갠트리의 회전과 정지의 반복과정에서 갠트리 회전 재시작점의 오차와 다엽조리개의 정확한 움직임 및 갠트리 속도와 같은 래피드아크의 선량정확도를 결정하는 요소들의 오차 가능성으로 인한 선량 오류가 발생할 수 있다. 본 연구에서는 이러한 갠트리의 회전과 정지의 반복적인 동작이 호흡연동 래피드아크 치료의 정확도에 어떠한 영향을 끼치는 지 치료 시 총 회전과 정지 동작 수를 결정하는 빔조사 구간 길이의 변화를 통해 분석하였다. 총 10명의 간암 환자를 대상으로 래피드아크 치료계획을 수립하였고, RPM 호흡연동 장치와 정확한 빔조사 구간 길이를 설정하기 위해 동적 팬텀을 사용하였다. 각 래피드아크 치료계획 당 EPID를 사용한 portal dosimetry delivery quality assurance (DQA) 계획과 이차원 다이오드 검출기배열장치인 MapCHECK2를 사용한 DQA 계획을 수립하여 호흡연동 방사선 치료과정에서 누적된 선량분포의 정확도를 분석하였다. 모든 환자의 호흡주기는 4초로 설정하였고, 수립한 DQA 계획들을 호흡연동 없이 연속적으로 조사하는 것과, 1초의 빔조사 구간과 2초의 빔조사 구간, 총 3가지의 경우에 대해 실제 방사선량 측정과 감마평가를 통해 선량의 정확도를 분석하였다. Portal dosimetry DQA 경우 평균 감마평가의 합격률은 호흡연동 없이 연속적일 때 $98.72{\pm}0.82%$ 였고, 1초의 빔조사 구간의 경우 $94.91{\pm}1.64%$, 2초의 빔조사 구간의 경우 $98.23{\pm}0.97%$이었다. MapCHECK2 DQA경우 평균 감마평가의 합격률은 호흡연동 없이 연속적일 때 $97.80{\pm}0.91%$였고, 1초의 빔조사 구간의 경우 $95.38{\pm}1.31%$, 2초의 빔조사 구간의 경우 $97.50{\pm}0.96%$였다. 본 연구 결과를 통해 빔조사 구간의 길이가 증가하여 갠트리 정지 동작 수가 감소할수록 호흡연동 래피드아크의 선량 정확도가 증가함을 확인할 수 있었으며, 이러한 특성을 호흡연동 방사선치료 대상 환자의 선정 및 호흡방식에 대한 교육과정에 고려되어야 할 것으로 판단되었다.

• Nuclear Engineering and Technology
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• 제53권9호
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• pp.3058-3067
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• 2021

Sodium zinc borate glasses doped with dysprosium and modified with different concentrations of barium oxide (0-50 mol %) were fabricated using the melting quenching technique. The structural properties of the prepared glass systems were characterized using XRD and FTIR methods. The absorption spectra of the prepared glasses were measured to determine their energy gap and their related optical properties. The density of the glasses and other physical parameters were also reported. Additionally, with the help of Photon Shielding and Dosimetry (PSD) software, we investigated the radiation shielding parameters of the prepared glass systems at different energy values. It was found that an increase in the density of the glasses by increasing the concentration of BaO significantly improved the gamma ray shielding ability of the samples. For practical results, a compatible irradiation set up was designed to check the shielding capability of the obtained glasses using a gamma ray source at 662 keV. The experimentally obtained results strongly agreed with the data obtained by PDS software at the same energy. These results demonstrated that the investigated glass system is a good candidate for several radiation shielding applications when comparing it with other commercial shielding glasses and concretes.

• 대한임상검사과학회지
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• 제41권3호
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• pp.123-127
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• 2009

After a health examination, abnormal patients were classified into two groups. One needs clinical treatment immediately, while the other one needs check-up in 2~3 month after for blood tests and preventive medical study. To discover the status and importance of the follow-up study in a health program, blood test upon health examination was compared to the test from the follow-up. We examined patients of ages from 20's to 70's. Among these patients, most of them were between 40's and 50's, and in male patients the follow-up test were more freguent than female. We examined blood obtained from January 2007 to December 2008. We analyzed and compared initial and the follow up blood test. Lipid profile, liver test, thyroid function tests (TFTs), glucose fasting, and HbA1c were examined from the blood tests. We also surveyed their distribution and status. The value of the follow up blood tests was significantly decreased with the most striking differences in lipid profiles and liver test. Follow up study is able to improve life style of patients through doctor's advice in a health program. Therefore, we can conclude that the follow up blood test is also quite critical.

• 한방안이비인후피부과학회지
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• 제7권1호
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• pp.35-51
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• 1994

This is the study on causes and remedies of hearing disturbance in chinese medical journals(1991-1993). The results were as follows. 1. The causes of sudden deafness(突發性耳聾) were usually fire in the liver(肝火).phlegmatic fire(痰火), deficiency of the vital function and essence of the kidney(腎虛), blood stasis or sludge due to stagnation of vital energy stagnation(氣滯血瘀). Remove endogenous heat or fire method(淸瀉火熱法). circulation of phlegm and dampness(運化痰濕). using tonics to cure disease due to deficiency of vital essence of both the liver and the kidney(滋補肝腎) were used for each treatment. 2.The causes of menieres disease were usually mental disturbance due to phlegmatit fire(痰化上搖). dampness-phlegm long standing(痰濕內停), water-dampness retention(水濕停滯), Method of remove heat and circulation phlegm(淸熱化痰法), method of remove water and dampness(利水渗濕法), invigorate function of the spleen and circulation of dampness method(健脾化濕法) were used for each treatment. 3. The causes of toxico-deafness(中毒性 耳聾) were usually heart, liver and kidney functional weakness(心肝腎虛), vital essence and blood weakness(氣血虛弱). Remove obstruction in the flow and circulation phlegm(通窮化痰), reinforce vital energy and tonify blood (補氣活血), using tonics to cure disease due to deficiency of vital essence of both the liver and the kidney(滋補肝腎) were used for each treatment. 4. The causes of deafness (耳聾), tinitus(耳鳴) were usually mental disturbance due to wind and heat(風熱上搖). flaming up of excessive heat of the liver(肝火上亢). exhaustion seat of reproductive essence in kidney(腎精虧虛). Remove endogenous heat and disperse wind(淸熱疏風). remove the fire of liver(淸肝瀉火), through nourish kidney check exuberance of yang(滋腎潛陽), nourish kidney yang(補腎陽). replenish vital energy and improve essential substance(益精血), blood activate for treatment of blood stasis(活血化瘀) were used for each treatment. 5. The effects of mainly used drugs were classified into method of water and dampness remove medicine(利水渗濕藥), nourishing liver and kidney medicine(補肝腎藥), improve blood and vital energy activate medicine(活血行氣藥), through nourish yan medicine check exuberance of yang(滋陰潛陽藥).

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2000년도 춘계학술대회 논문집
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• pp.1051-1054
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• 2000

We developed the micro CSF (celebrospinal fluid) shunt valve with surface and bulk micromachining technology in polymer MEMS. This micro CSF shunt valve was formed with four micro check valves to have a membrane connected to the anchor with the four bridges. The up-down movement of the membrane made the CSF on & off and the valve characteristic such as open pressure was controlled by the thickness and shape of the bridge and the membrane. The membrane, anchor and bridge layer were made of the $O_2$ RIE (reactive ion etching) patterned Parylene thin film to be about 5~10 microns in thickness on the silicon wafer. The dimension of the rectangular nozzle is 0.2＊0.2 $\textrm{mm}^2$ and the membrane 0.45 mm in diameter. The bridge width is designed variously from 0.04 mm to 0.12 mm to control the valve characteristics. To protect the membrane and bridge in the CSF flow, we developed the packaging system for the CSF micro shunt valve with the deep RIE of the silicon wafer. Using this package, we can control the gap size between the membrane and the nozzle, and protect the bridge not to be broken in the flow. The total dimension of the assembled system is 2.5＊2.5 $\textrm{mm}^2$ in square, 0.8 mm in height. We could precisely control the burst pressure and low rate of the valve varing the design parameters, and develop the whole CSF shunt system using this polymer MEMS fabricated CSF shunt valve.

• 한국산학기술학회논문지
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• 제10권6호
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• pp.1414-1423
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• 2009

본 연구는 복부초음파검사를 통하여 얻은 건강진단 결과로부터 지방간 유소견자의 비율을 파악하고, 비만, 간기능 및 고지혈증 지표들과 지방간과의 관련성을 검토할 목적으로 실시하였다. 연구대상은 2006년 7월부터 2007년 6월까지의 기간에 D시의 한 대학병원 건강검진센터에서 종합건강검진을 받았던 30세 이상 남성 772명이었으며, 연구결과, 조사대상자의 지방간 유소견율은 25.5%이었으며, 비만지표(체중, BMI, 체지방율, 허리둘레와 엉덩이둘레 비, 허리둘레와 신장 비), 간기능지표(AST, ALT, GGT) 및 고지혈증지표(TG, TC, HDL-C)들과 유의한 관련성을 갖고 있음을 알 수 있으며, 이는 연령과는 독립적으로 그 관련성이 있는 것으로 나타났다.

• 대한한의학회지
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• 제35권1호
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• pp.124-134
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• 2014

Objectives: Metabolic syndrome is considered a coronary heart disease risk factor and its prevalence rate is increasing in Korea. Because obesity is relevant to metabolic syndrome, we investigated the relationship between metabolic syndrome and the Obesity Pattern Identification Questionnaire in middle-aged health check-up examinees. Methods: This was a cross-sectional study with 125 patients who visited a health promotion center of university hospital from October 2012 to January 2013. We analyzed the association of Obesity Pattern Identification Questionnaire and the diagnostic criteria of metabolic syndrome. Results: Pi deficiency (脾虛), phlegm (痰飮), liver stasis (肝鬱) and food accumulation (食積) pattern showed significantly highs score in the group with hypertriglyceridemia. Also, females demonstrated significantly high scores of liver stasis (肝鬱) and food accumulation (食積) in the group with hypertriglyceridemia. The questions of Pattern Identification that showed especially significant high score in the group of hypertriglyceridemia are as follows: 'Easily get annoyed', 'Usually worried', 'Frequently overeating or bingeing', and 'Having more after getting full'. There are positive correlations between triglyceride and the score of Pi deficiency (脾虛), phlegm (痰飮) and food accumulation (食積) pattern. Conclusions: Obesity Pattern Identification Questionnaire can be used for the management of hypertriglyceridemia in an effort to prevent metabolic syndrome.

• Journal of Preventive Medicine and Public Health
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• 제38권2호
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• pp.154-162
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• 2005

Objectives: To analyze the relationships of socioeconomic status(SES) to health status and health behaviors in the elderly. Methods: Data were obtained from self-administered questionnaire of 4,587 persons, older than 65 years, living in a community. We measured the sociodemographic characteristics, socioeconomic status, health status (subjective health status, acute disease, admission experience, dental state, chronic disease etc.), activities of daily living (ADL), instrumental activities of daily living (IADL), and mini-mental state examination-Korean (MMSEK). Binary and multinominal logistic regression analyses were employed to analyze factors affecting on the socioeconomic status of the elderly. Results: With regard to the SES and health status, those with a low SES had poorer subjective health states and lower satisfaction about their physical health. Also, acute disease experiences, admission rates and tooth deciduation rates were higher in those of low SES. In the view of physical and cognitive functions, the ADL, IADL and MMSE-K scores were also lower in those of low SES. However, with regard to health behaviors, lower smoking and alcohol drinking rates were found in the low SES group, and a similar trend was shown with regular physical exercise, eating breakfast, and regular physical health check-up. From these findings, we surmise that those with low SES have a poorer health condition and less money to spend on health, therefore, they can not smoke or drink alcohol, exercise and or have a physical health check-up. Conclusion: This study suggests that socioeconomic status plays an important role in health behaviors and status of the elderly. Low socioeconomic status bring about unhealthy behavior and poor health status in the elderly. Therefore, more specific target oriented(esp. low SES persons) health promotion activities for the elderly are very important to improve not only their health status, but their health inequity also.