저소득 독거노인의 생활만족도 관련요인

강지연,전만중,유병철,이용환 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.4

Background : To access the influential factors of life satisfaction in low-income and living alone old people for solving the problem of the estranged elderly. Method : We conducted a questionnaire survey during the period from June 2007 till September 2007. Investigation subjects were 152 elderly people registered in two welfare centers in Busan. We measured life satisfaction of low-income and living alone old people and analyzed with descriptive analysis, t-test, one-way ANOVA and dummy variable regression analysis using SPSS Win(ver 12.0k) program. Result : The mean score of life satisfaction in low-income and living alone old people was 2.52 ± 0.56. Life satisfaction in low-income and living alone old people was relatively high in groups of 65-69 years old, elementary school graduates, subjectively healthy, exercise, hobby or leasure activity, regular repast, 3 times repast per day and income satisfaction. Life satisfaction in low-income and living alone old people was influenced by age, religion, satisfaction of income, subjective health conditions and regular repast. Conclusion : From the result, we can concluded that life satisfaction in low-income and living alone old people was low and influenced by various social and economic factors. Therefore, methods for improving life satisfaction level of low income and living alone old people are required for discerning our society's equality and healthiness.

쾌속 3차원 조형 시스템을 활용한 장신구 제작방법의 개발

이호용,임중연,김경아,범형택 東國大學校 1998 東國論叢 Vol.37 No.-

This paper is concerned with the new production method for jewelry by using rapid prototyping system. this system can directly produce the three-dimensional prototype shape of jewelry based on CAD modeling. Recently, rapid prototyping technology has been regarded as a powerful concurrent tool for integrating design and manufacturing process. In view of this, our study focuses the attention on the new application of this technology into the prototype production of jewelry which has been manufactured almost by hand. The characteristics of various RP systems are presented and one distinct jewelry example has been produced to show that out method is quick and efficient.

나사산이 있는 관이음의 효과적인 해석모델의 개발

임중연,이호용,고광일 東國大學校 1996 東國論叢 Vol.35 No.-

This paper is concerned with and efficient model for the structural analysis of threaded connections which is used to assemble the tubular connections such as pipes. Advanced mechanics has been used to develop the model which yields acceptably accurate solutions for stresses when compared to other methods such as experimental or finite element analysis procedures. Beam-on-elastic-foundation equations are used to compute stresses due to assembly of the connection while bolt-nut equation and Lame' equation are used for axial loads and pressures. Numerical results show that our model is computationally efficient and valid in terms of stress distribution for make-up. The current model can provide the quick and inexpensive analysis tools to the production engineer with reasonable accuracy.

부비강미분화암종 3예

김용대,곽동석,이형중,신재흔,배창훈,송시연 영남대학교 의과대학 2004 Yeungnam University Journal of Medicine Vol.21 No.1

Sinonasal Undifferentiated Carcinoma (SNUC) is a very rare, highly aggressive malignant tumor of the nasal cavity and paranasal sinuses. SNUC tends to present with advanced-stage disease, often with intracranial invasion. It requires an aggressive multimodality therapy that includes surgical resection. A cure rate of less than 20% is generally reported in the literature, with most patients dying within 1 year of onset of the disease. Three patients diagnosed as SNUC were treated at the Yeungnam University Medical Center between the years 2000 and 2003 were analyzed retrospectively. All patients presented with the disease very advanced. The three cases were given chemotherapy or chemotherapy with radiotherapy. Two patients died of the disease, surviving only 6 and 11 months following treatment, respectively. We did a follow-up on just the one remaining case with incomplete controlled disease for 27 months. The overall prognosis of SNUC is very poor. We consider that more intensive multimodality therapies are recommended for all patients with SNUC.

유한요소 방법에 의한 스트립 압연에 대한 해석

이호용,임중연,마상백 동국대학교 산업기술연구원 1997 산업기술논문집 Vol.9 No.-

실험적으로 결정된 응력-변형률 곡선과 측정된 로울-스트립(strip) 접촉면에서의 속도분포를 탄-소성 유한요소모델에 입력하여 스트립 압연에 대한 해석을 시도하였다. 변형된 로울의 형상은 수치모델에서는 원형으로 간주하였고 실제 접촉 길이에 근거하여 응력-변형률 분포와 속도장이 계산되었다. 단면감소율에 따른 로울 압하력의 유한요소해석 결과를 얻었고 이를 실험결과와 비교한 결과 근사한 일치를 보여 주었다. Experimentally determined stress-strain curve and measured roll-strip interface velocities are used as input to an elastic-finite element model of strip rolling. The shape of the deformed roll is assumed to be circular in the numercal model and is based on the actual contact length. The stress and strain distributions and velocity fields are computed. The predictions of the roll separating force for several reductions compare favorably with the experimental results.

백혈병환자에서 Liposomal Amphotericin B로 치료된 파종성 Fusarium 감염 1예

이지연,김성범,박대원,신성희,김용현,윤소영,엄중식,최철원,정희진,김우주,김준석,김장수,이갑노 대한감염학회 2003 감염과 화학요법 Vol.35 No.5

Fusarium spp.는 사람에서 드물게 각막염, 조갑진균증, 상처나 화상부위감염 등을 유발하는 것으로 알려져 있으나 최근에는 면역저하자에서 기회감염의 원인균으로 증가하고 있는 추세이다. 면역저하자에서 파종성 감염이 있는 경우에 예후는 치명적이나, 증례가 많지 않고 진단방법이 제한되어 있어 조기 진단과 신속한 치료가 쉽지 않다. 그러나 특징적으로 피부병변의 동반이 흔하여 면역저하자에서는 피부 병변의 면밀한 관찰과 함께 Fusarium 감염을 조기에 의심하여 피부생검이나 배양을 하는 것이 진단에 도움이 되리라 생각된다. 파종성 Fusarium 감염의 치료로는 감염 부위의 국소적 외과적 절제와 전신적 항진균제의 사용이 필요하고 현재까지는 amphotericin B가 비교적 효율적인 항진균제로 알려져 있으나 면역저하자에서 이에 반응을 하지 않는 경우가 많다. 저자들은 급성골수성백혈병 환자에서 관해유도화학요법 시행 후 호중구감소상태에서 피부병변과 폐침윤이 발견되었고 피부의 중심부 궤양을 동반한 구진성 병변에서 배양검사를 통해 파종성 Fusarium 감염을 진단하였으며 liposomal amphotericin B (AmBisome )를 사용하여 성공적으로 치료한 예를 경험하여 보고하는 바이다. Fusarium spp., basically a superficial pathogen, is a newly emerging fungal pathogen of opportunistic infections in immunocompromised patients. At present, although Fusarium spp. are relatively resistant to amphotericin B, the combination of amphotericin B and surgical debridement appear to be optimal treatment for disseminated infection. Recently we experienced a 32-year-old neutropenic patient after induction chemotherapy for acute myelocytic leukemia presented with skin lesions and infiltrations in both lungs. We diagnosed with disseminated fusariosis by skin culture and successfully treated the patient with liposomal amphotericin B. We emphasize a high index of suspicion for skin lesions especially in immunocopromised patients.

사망 진단서(시체 검안서) 작성의 문제점

김규석,임용수,이중의,서길준,윤여규,어은경,염석란,정연권,이윤성 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4

Background: This study was conducted to analyze the current problems in completing death certificates and to identify the correct method for completing death certificates Methods: We reviewed 262 death certificates in three hospitals from March 1 to April 30, 2000, and 119 death certificates in one hospital from March 1 to 31, 2000. We identified major and minor errors and analyzed and compared them retrospectively. Results: A total of 381 death certificates were reviewed: 59 in Seoul National University Hospital,101 in Ewha Woman's University Hospital, and 102 in Gachon Medical College Hospital, which has no education program for completing death certificates in postgraduate training, and 119 in Samsung Medical Center which has an education program for completing death certificates. 358 certificates(94.0%) had at least one error. There were only 23 death certificates(6.0%) without an error. In 182 cases(47.8%), there was one major error. In 321 death certificates(84.3%), there were more than two errors. A comparison of Samsung Medical Center with the other hospitals showed that the number of total errors was statistically different(p=0.001). Conclusion: There were few death certificates without an error in this study. In a hospital which has postgraduate training in completing death certificates, there are fewer errors than in other hospitals which have no training course. Emergency physicians actually certify many deaths, so they must know the correct method of completing death certificates for statistics on morbidity and mortality.

호중구 감소성 발열을 보인 고형암 환자의 임상양상 및 그람양성균 균혈증의 위험인자

구남수,김준형,최유경,정세진,오형중,윤기태,김연아,신소연,김명수,김영근,박윤선,최준용,송영구,이경원,김준명 대한감염학회 2006 감염과 화학요법 Vol.38 No.5

목적 : 항암요법을 시행받고 호중구 감소성 발열이 발생한 고형암환자에서 임상양상을 분석하고 그람양성균균혈증의 위험인자를 알아보고자 하였다. 재료 및 방법 : 2002년 1월부터 2004년 12월까지 연세대학교 의과대학 세브란스 병원 종양내과에서 고형암으로 진단받고 항암요법을 시행받은 18세 이상의 암환자에서 호중구 감소성 발열이 있었던 288예를 대상으로 하였다. 결과 : 항암요법을 시행받은 고형암 환자 중 288예에서 호중구 감소성 발열이 발생하였다. 이중 원인을 찾을 수 있었던 경우는 130예로 전체 45.1% 이었으며 미생물학적 확인감염(microbiologically documented infection, MDI)은 53예(18.4%) 이었다. 균혈증이 동반된 호중구 감소성 발열의 원인균 분포를 보면 총 53예에서 그람양성균이 27예 분리되어 50.9%를 차지하였고 그람음성균이 25예(47.2%), 진균 1예(1.9%) 순이었다. 그람양성균 중에서 methicillin 내성 포도상구균의 비율은 35% 이었다. 호중구 감소성 발열 환자에서 그람양성균 균혈증의 독립적인 위험인자를 분석한 결과 중심정맥 카테터와 연관된 감염이 있는 경우, 구내 점막염이 발생한 경우, 그리고 피부 및 연조직 감염이 발생한 경우에서 그람양성균 균혈증의 위험이 높았다. 결론 : 호중구 감소성 발열이 발생한 고형암 환자에서그람양성균 균혈증이 가장 높은 빈도를 보였으며 특히 중심정맥 카테터와 연관된 감염이 있는 경우, 구내 점막염이 발생한 경우, 그리고 피부 및 연조직 감염이 발생한 경우에서 그람양성균 균혈증의 위험이 높음을 알 수 있었다. 따라서 호중구 감소성 발열이 발생한 고형암 환자에서 발열 당시에 위와 같은 위험인자가 있을 경우 glycopeptide의 조기 사용을 고려해야 할 것으로 사료되며 앞으로 더 많은 환자를 대상으로 하는 전향적 연구가 진행되어야 할 것으로 생각된다. Backgrounds : Recently, there has been a rise of prevalence of gram positive infection among cancer patients with febrile neutropenia. The proportion of antibiotic-resistant gram positive infection has been growing lately, especially in Korea, where the rate of MRSA infection was over 70%. It brings to careful consideration of early glycopeptide treatment in febrile neutropenic patients if gram positive infection is suspected. Also until now, most studies concerning febrile neutropenic patients were mainly related to hematologic malignancy rather than solid tumor. Materials and Methods : We evaluated clinical manifestations and risk factors for gram positive bacteremia in a cohort of 288 solid tumor patients who were more than 18 years old and had neutropenic fever after chemotherapy from January 2002 to December 2004 at the Department of Oncology, Yonsei Cancer Center, Seoul. Results : We identified the cause of fever in 130 (45.1%) cases, of which 53 (18.4%) cases were blood stream infection. Gram positive organism was isolated in 27 cases which comprises 50.9% of blood stream infections, followed by gram negative organism (47.2%) and fungus (1.9%). A logistic regression analysis revealed that gram positive bacteremia was associated independently with central venous catheter (CVC) infection, oropharyngeal mucositis, skin and soft tissue infection in febrile neutropenic patients with solid tumor. Conclusions : Gram positive bacteremia was common among febrile neutropenic patients in solid tumor and was associated with CVC infection, oropharyngeal mucositis, skin and soft tissue infection. The early use of glycopeptide must be taken into account in such conditions.

Structures of Conopressin-G and -S

Yong, Yeon-Joong,Lee, Eun-Jung,Lim, Yoong-Ho The Korean Society for Applied Biological Chemistr 2006 Journal of Applied Biological Chemistry (J. Appl. Vol.49 No.4

Strategies for Improvement of Agricultural Environment and Creation of the Venture Businesses from Agricultural Chemistry : Determination of the Secondary Structures of Conopressin G and S Based on the Chemical Shift Index

(Yeon Joong Yong),(Yoong Ho Lim) 한국환경농학회 1998 98 International symposium sponsored by Institute Vol.- No.-