부산, 울산, 경남지역 직업병감시체계에서 나타난 수지진동증후근의 역학적 특성

최영희,유철인,이지호,이충렬,이헌,김영욱,채창호,고상백,김은아,이유진,김양호 大韓産業醫學會 2003 대한직업환경의학회지 Vol.15 No.3

목적: 국내에서도 국소진동에 의한 수지진동증후군이 다수 있을 것으로 추정하나 최근에 이에 대한 보고가 적어 부·울·경 직업병감시체계를 통하여 수지진동증후군에 대한 환례를 수집하여 이의 역학적 특성을 밝히고자 본 연구를 실시하였다. 방법: 2001년 44월부터 2002년 12월까지 부산, 울산, 경남지역에 있는 종합병원 9곳을 통하여 특수 건강진단과 산업의학과 외래를 방문한 근로자를 대상으로 진동폭로에 대한 설문조사를 실시하고 이들중에서 수지진동으로 인한 증상을 호소하는 근로자는 이학적 검사와 Stockholm workshop scale을 이용하여 수지진동증후군이 있는지 평가하였다. 결과: 남자 188명, 여자 4명 등 총 192례의 수진진동증후군이 의심되는 환례를 수집하였으며, 업종별로는 조선업에 종사하는 근로자들이 가장 많았다. 국소진동의 주된 폭로원은 그라인더가 가장 많았으며, 혈관장해로 인한 증상보다 감각신경성 장해로 인한 증상을 많이 호소하였다. 결론: 전국적으로 조선업종의 그라인더 사용자를 중심으로 많은 수의 수지진동증후군의 환자가 있을 것으로 추정되며, 이들에 대한 예방대책을 마련하기 위하여 전국규모의 정확한 유병률 조사 및 실태파악이 필요한 것으로 판단된다. Objects: The objectives of this study were to estimate the epidemiologic characteristics of hand-arm vibration syndrome (HAVS) due to occupational exposure of hand transmitted vibration and to identify the occupations and industries where such exposures arises, and the main sources of exposure. Methods: In April 2001 the Busan, Ulsan, and Kyung-Nam Province occupational disease surveillance system was established to measure the incidence and prevalence of work-relatd HAVS and other occipational diseases in these Korean provinces. Occupational physicians of nine hospitals in Busan, Ulsan, and Kyung-nam Province were involved in this project between April 2001 and November 2002. Physicians collected information through questionnaires and interviews. Information gathered included age, occupation, types of vibration tools used and presence of subkective symptoms such as vibration-induced white finger (VWF), numbness and tingling. Results: A total 192 cases were reported with 188 males and 4 females. The shipbuilding industry was the most common type of industry and grinders were the most common source of exposire. Symptoms of neurological disorder were more common than those of vascular disprder. Conclusions: The authors concluded that exposure to hand transmitted vibration is common and that HAVS is one of the most common occupational diseases in Korea. However, the range and extent of hand transmitted vibration and the overall prevalence of HAVS in Korea is still unknown. More extensive research on this syndrome in order to priorite necessary preventive measures is required.

미세입자(PM_(2.5))의 배출원 구성물질 성분비 개발에 관한 연구

이학성,강충민,강병욱,이상권 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.3

The purpose of this study was to develop the PM_(2.5) source profiles, which are mass abundances (fraction of total mass) of a chemical species in PM_(2.5) source emissions. The source categories studied were soil, road dust, gasoline and diesel vehicles, industrial source, municipal incinerator, coal-fired power plant, biomass burning, and marine. The chemicals analyzed were ions, elements, and carbons. From this study. soil source had the crustal components such as Si, AI, and Fe. In the case of road dust, Si, OC, Ca, Fe had large abundances. The abundant species were SO₄^(2-), Cl^(-), NH₄^(+), and EC in the gasoline vehicle and EC, OC, Cl^(-), and SO₄^(2-) in the diesel vehicle. The main components were SO₄^(2-), S, NH₄^(+), and EC in the industrial source using bunker C oil as fuel. ^(-), NH₄^(+), Fe, and OC in the municipal incinerator source, and Si, Al, SO₄^(2-), and OC in the coal-fired power plant source. In the case of biomass burning, OC, EC, and CI- were mainly emitted. The main components in marine were Cl^(-), Na^(+), and SO₄^(2-).

대구광역시의 일개 4년제 대학생의 건강위험행동조사

이중정,이충원,우병욱 대한보건협회 2003 대한보건연구 Vol.29 No.2

The purpose of the study was to see how prevalent the risk behaviors of korean university students using Youth Risk Behavior Surveillance System(YRBSS) developed by the Centers for Disease Control and Prevention(CDC). Translation and modification for Korean students of the YRBS were carried out March 2000 and the modified YRBS were administered to students of 4-year college in Daegu metropolitan city. The number of students used at final analysis was 619(male : 212(freshmen: 101, senior students : 111) female : 407(freshmen : 146, senior students : 261)) Over 50% of university students rarely or never used safety belt and there were no significant difference between freshmen and .senior students. 363 of students had ridden a bicycle during 12 months preceeding the survey. Of these students, almost student(male : 99%, female : 100%) were rarely or never wore a bicycle helmet. During the 12 months preceding the survey, 22.8% male freshmen had felt so sad or hopeless almost every day for 22weeks in a row that they stopped doing some usually activities and there were no significant difference between freshmen and senior students. Male student in grades 2. 3 and 4(89%) were significantly more likely than freshmen(42%) to have ever tried cigarette smoking. Almost male students had had >1 drinks of alcohol during their lifetime(lifetime alcohol use) and almost male freshmen(%%) and senior student(%%) had 2 1 drinks of alcohol on 2 1 of the 30 days preceding the survey(current alcohol use). These results suggest that some risk behaviors be very prevalent in a korean university students and priority health-risk behaviors, which contribute to the leading cause of mortality and morbidity among youth and adult, often are establish during college age, extend into adulthood, are interrelated.

GMAHN에서의 네트워크 성능 향상에 관한 연구

金在浩,李光培,金玄郁,劉忠烈,河載承,裵振勝 明知大學校 産業技術硏究所 2008 産業技術硏究所論文集 Vol.27 No.-

Recently, Wire-rireless combination study is being studied very actively with the advent of Ubiquitous environment, using wireless device such as PDA, Cellular Phone loading multi-hop communication that connects wired internet network very easily and controls the system and shares the information in anyplace. The past algorithm, wired and wireless combination that connect between Ad Hoc Network and wired network is being focused only on the study of heterogeneous network interface. The proposed algorithm established independent multi-path between source node and destination node to prevent data loss when errors happen in route. The proposed algorithm established independent multi-path between source node and destination node to prevent data loss, and trasmitted data packet to destination node very quickly and promoted network reliabiliy when errors happen in route.

천추 전방에서 발생한 신경절 세포종 : 증례 보고 A Case Report

강현구,이승로,박동우,박충기,함창곡,박용욱 한양대학교 의과대학 2002 한양의대 학술지 Vol.22 No.2

We have experienced a case of presacral ganglioneuroma. So, we report a peripheral ganglioneuroma of sacral origin. The patient is 34-year-old man with intermittent low back pain and right sciatica. Myelographic computed tomography revealed extradural lobulated low attenuated tumor lesion within spinal canal at the level of L5 and S1. Tumor indented the thecal sac to the left side, and extended into the pelvic cavity through the intervertebral foramen between S1 and S2. The mass was surgically excised and turned out to be ganglioneuroma pathologically.

수영장 소비자들의 사회성 수용과 생활만족의 관계

임효택,정명수,김철주,이강욱,유충완 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4

The purpose of the present study is to investigate and analyze effects of aerobic dance training on housewives' life satisfaction. 270 subjects were selected from members at aerobic dance clubs in Kwangju. A questionnaire was used to collect the data. The data were analyzed with SAS 6.12 statistics package. The findings of the study were : 1. 65% of the subjects participated in the aerobic dance activities 4~5 days a week while 18.3% of the subjects participated every day. 2. 67.4% of the subjects participated in the aerobic dance activities for 30~50 minutes and monthly mean expenses were 30,000~50,000 won(56.1%). 3. In comparison of the housewives' general characteristics with the motive of participation in the aerobic dance activities, there were no significant differences. 4. According to the subjects's jobs, there were significant differences in the motive of participation. Especially, employees for management and administration had higher motive of participation(3.644). 5. In comparison of life satisfaction with the aerobic dance activities, all parameters(duration, periods, degree and existence of the activities) were related with the life satisfaction. 6. In case of participation for more than 5 years, more life satisfaction was observed.

이차성 기질화 폐렴이 동반된 피부근염 1예

박철연,권정석,정진욱,이충기,현대성,최정윤 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.2

Dermatomyositis is characterized by progressive, symmetric, Proximal muscle weakness and a nonsuppurative inflammatory myopathy of unknown etiology involving predominantly skeletal muscles. It is also characterized by typical skin lesions. Interstitial lung disease has a poor prognosis when it is associated with dermatomyositis. Organizing pneumonia is a disease in which granulation tissue fills the lumina of terminal and respiratory bronchioles and extends into the distal airspaces. The cryptogenic nature of the process is appreciated in that organizing pneumonia patterns of injury can be seen in secondary forms of the disease (secondary organizing pneumonia). Organizin pneumonia has been reported to occur in 5~10% in dermatomyositis-polymyositis patients Anti-histidyl tRNA synthetase antibody (anti-Jo-1) is a Predictive disease marker that is reported to occur in up to 70% of patients. We describe a 49-year-old male dermatomyosits patient who presented with organizing pneumonia and was found to have negative anti-Jo-1 antibody.

A Pilot Trial on Pulmonary Emphysema Quantification and Perfusion Mapping in a Single-Step Using Contrast-Enhanced Dual-Energy Computed Tomography

Wook Lee, Choong,Beom Seo, Joon,Lee, Youngjoo,Jin Chae, Eun,Kim, Namkug,Joo Lee, Hyun,Jeon Hwang, Hye,Lim, Chae-Hun Lippincott Williams Wilkins, Inc. 2012 Investigative radiology Vol.47 No.1

OBJECTIVES:: To know whether contrast-enhanced dual-energy computed tomography angiography (DECTA) can be used for simultaneous assessment of emphysema quantification and regional perfusion evaluation. MATERIALS AND METHODS:: We assessed 27 patients who had pulmonary emphysema and no pulmonary embolism on visual assessment of CT images, among 584 consecutive patients who underwent DECTA for the evaluation of pulmonary embolism. Virtual noncontrast (VNC) images were generated by modifying the “Liver VNC” application in a dedicated workstation. Using in-house software, the low-attenuation area below 950HU (LAA950), the 15th percentile attenuation (15pctlVNC) and the mean lung attenuation (MeanVNC) were calculated. The “Lung PBV” application was used to assess perfusion, and the low-iodine area below 5HU (LIA5), the 15th percentile iodine (15pctlIodine), and the mean iodine value (MeanIodine) were calculated from iodine map images. The correlation between VNC parameters and pulmonary function test data (available in 22 patients) and the correlation between VNC and iodine map parameters (all included 27 patients) were assessed. Color-coded map of VNC image were compared with iodine map images for the evaluation of regional heterogeneity. RESULTS:: We observed moderate correlations between LAA950 and predicted %FEV1 (rs = −0.47, P < 0.05), and 15pctlVNC and predicted %FEV1 (rs = 0.56, P < 0.05). We also observed significant correlations between LAA950 and LIA5 (rs = 0.48, P < 0.05), 15pctlVNC and 15pctlIodine (rs = 0.59, P = 0.001), and MeanVNC and MeanIodine (rs = 0.47, P < 0.05). On visual assessment of the regional heterogeneity, 82% of patients showed relatively good correlation between the areas of perfusion impairment on iodine map images and areas of emphysema on color-coded VNC images. CONCLUSIONS:: We observed moderate correlations between quantitative parameters on VNC images and pulmonary function test data, and also observed moderate correlations between the severity of parenchymal destruction, as determined from VNC images, and perfusion status, as determined from iodine maps. Therefore, the contrast-enhanced DECTA can be used for the emphysema quantification and regional perfusion evaluation by using the VNC images and iodine map, simultaneously.

Radioscintigraphic Findings in Budd-Chiari Syndrome Due to Obstruction of Inferior Vena Cava

Lee, Choong Ki,Lee, Myung Shik,Lee, Mun Gyu,Sung, Dong Wook 대한핵의학회 1986 핵의학 분자영상 Vol.20 No.1

Medicinal Chemistry : Article ; Induction of Apoptosis and Antitumor Activity of Eel Skin Mucus, Containing Lactose-Binding Molecules, on Human Leukemic K562 Cells

( Choong Hwan Kwak ),( Sook Hyun Lee ),( Sung Kyun Lee ),( Sun Hyung Ha ),( Seok Jong Suh ),( Kyung Min Kwon ),( Tae Wook Chung ),( Ki Tae Ha ),( Young Chae Chang ),( Young Choon Lee ),( Dong Soo Kim 영남대학교 약품개발연구소 2015 영남대학교 약품개발연구소 연구업적집 Vol.25 No.-

For innate immune defense, lower animals such as fish and amphibian are covered with skin mucus, which acts as both a mechanical and biochemical barrier. Although several mucus sources have been isolated and studied for their biochemical and immunological functions, the precise mechanism(s) of action remains unknown. In the present study, we additionally found the eel skin mucus (ESM) to be a promising candidate