우리나라 지역 직업성질환 감시체계의 현황과 전망

임종한,장성실,김성아,문재동,채창호,홍윤철,김수영,김진석,김영욱,한상환,이혜숙,원종욱,송동빈,하은희,강성규 대한산업의학회 2001 대한직업환경의학회지 Vol.13 No.2

기존의 특수건강진단과 작업환경측정을 통한 직업병 관리가 진폐증, 소음성난청 등의 소수 특정질환에 국한되고 실제 직업병 발생 규모 파악이나 신종 직업병의 발견에 한계를 보인다는 사실은 산업의학전문가들 사이에서도 공감을 이루고 있다. 미국과 영국 등에서의 직업성질환 감시체계에 대한 경험은 우리 나라의 직업성질환 감시체계 구축에도 새로운 자극제가 되면서, 1998년이후 인천, 대전, 여천, 구미, 부울경 지역에서 지역 직업성질환감시체계를 산업보건관리의 중요한 시스템으로 구축하려는 노력이 확산되고 있다. 새로이 구축되어지는 이들 지역 직업성질환 감시체계는 감시하고자 하는 대상질환, 활용 가능한 인적자원 및 자료원, 지역 의료체계의 특수성 등에 따라서 목적과 방법을 달리하면서 독특한 형태로 발전을 하고 있다. 각 지역단위 감시체계들이 그 상황에 맞게 독특한 목적과 전략들을 발전 시키면서도, 향후 발전할 국가적인 차원의 직업성질환 감시체계 구축을 위하여 직업성질환 감시의 기본 전략 등을 공유하는 등의 노력이 필요하다. 환례 정의 및 기본적인 등록 서식의 공유, 직업성질환 감시 자료원의 발굴, 공동의 정보 네트워크 및 직업성질환 감시 데이터베이스 구축 등 직업성질환 감시활동을 지원하기 위한 여러 기초 인프라 구축에 힘을 모아야 할 것이다. 우리 나라에서 직업성질환 감시체계를 성공적으로 구축하기 위해서는 수집된 자료의 질 관리를 위한 직업성질환 감시의 원칙 제정과 감시 전략의 공유 등이 필요하며, 전국적인 직업성질환 감시체계의 하부구조라고 할 수 있는 지역감시체계의 기초 토대 마련과 강화작업이 절실하게 필요하다.

자궁선근증의 고찰

조환성,이해혁,정성윤,김성욱,이순곤,남계현,이임순,이권해 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Objective: This study was designed to estimate the frequency and risk factor for edenomyosis Methods: The clinical records of 623 women undergoing hysterectomy were retrieved in the Department of Obstetrics and Gynecology, Soonchunhyang University Hospital, during 5 years, from Jan. 1995 to Dec. 1999. Results: The following result were obtained. 1. Adenomyosis was found in 247 of 623 patients(39.6%) 2. The highest incidence was 40-49 years of age group, an incidence of 46.6% and mean age was 44.7 years. 3. Adenomyosis was more frequently observed in parous women than non-parous women, such as 93.1% and 6.9%, respectively. 4. Dysmenorrhea, metrorrhagia, pelvic pain and vaginal bleeding were common symptom of adenomyosis, an incidence of 28.7%, 19.0%, 18.2% and 16.2%, respectively. 5. Myoma was the most combined disease in adenomyosis, showing the incidence of 54.7%. 6. Grossly, the size of uterus was enlarged more than 10 weeks gestational size in adenomyosis, an incidence of 61.9%. 7. Preoperative diagnostic accuracy of adenomyosis was 6.9%. Conclusion: The results show that deeply understanding of the common symptoms and epidemiology of adenomyosis improve the preoperative diagnostic accuracy.

[논문]현실요법을 적용한 교육프로그램이 여중생의 학습된 무기력과 자기조절능력에 미치는 효과

허성돈,김정섭,권해수 교육혁신학술위원회 2010 교육혁신연구 Vol.20 No.2

The purpose of this study was to identify the effects of a growth program based on reality therapy on middle school girls' leaned helplessness and self-regulated learning. The subjects for study were 66 students of two classroom. A classroom students were assigned into the experimental group(33 students) and the other class was assigned into the control group(33 students). The students in the experimental group went through 10 sessions of a growth program based on reality therapy and second control group did program of a regular school curriculum. It was carried out 10 sessions in 9 weeks 45-55 minutes lasting 10 sessions. The result of this study follow. First, the experimental group which participated in a growth program based on reality therapy showed significant differences in learned helplessness from that of the control group. Second, the experimental group which participated in a growth program based on reality therapy showed significant differences in self-regulated learning ability from that of the control group. 본 연구는 현실요법을 적용한 성장프로그램이 여중생의 학습된 무기력과 자기조절학습능력에 미치는 영향을 확인하는 것을 그 목적으로 하였다. 2개 학급 66명의 학생을 대상으로 연구하였고 1개 학급 33명은 실험집단으로 다른 1개 학급 33명은 통제집단으로 임의 배정되었다. 실험집단은 10회기에 걸쳐 현실요법을 적용한 성장프로그램에 참여하였고, 통제집단은 정규 교육과정에 맞추어 수업을 받았다. 연구결과는 다음과 같다. 첫째, 현실요법을 적용한 성장프로그램에 참여한 실험집단이 통제집단 보다 학습된 무기력 수준이 감소하였다. 둘째, 현실요법을 적용한 성장프로그램에 참여한 실험집단이 통제집단보다 자기조절학습능력 수준이 증가하였다. 본 연구를 통해 현실요법이 학습무기력 수준이 높은 여중생의 내적 통제력과 자기조절능력을 향상시키는데 효과적임을 확인할 수 있었다. 끝으로 본 연구의 제한점과 향후 연구에 대한 제언을 덧붙였다.

블록 암호화를 위한 Blowfish 구현

성해경,박종태,노진수,이강현 조선대학교 에너지.자원신기술연구소 2002 에너지·자원신기술연구소 논문지 Vol.24 No.2

Blowfish is a symmetric block cipher that can be used as a drop-in replacement for DES or IDEA. It takes a variable-length key, from 32bits to 448bits, making it ideal for both domestic and exportable use. In this paper, the Blowfish unit is designed using pipeline architecture and correctly implements the algorithm with a focus on ease-of-design and ease-of-use without sacrificing too much speed or size. For the real time process of Blowfish, it is required that high-speed operation and small size hardware. So, the scheme of new adders designed has all advantages abstracted from other adders. As a result of this new adder designed, area cost increases by 1.05 times but the operation speed increases by 1.2 times.

8비트 RISC 프로세서 설계

성해경,이강현 조선대학교 에너지.자원신기술연구소 2003 에너지·자원신기술연구소 논문지 Vol.25 No.1

An importance about the complicated function and the operation speed of arithmetic is rising its head on the info-communication society which has rapidly development. Currently, 8bit RISC processor is used widely in the info-communication systems. Also, the core library of RISC processor can be applied easily in embedded system. So it requires more complicated function and the fast operation speed of arithmetic to all systems. In this paper, the authors designed 8bit RISC processor for high speed operation core that is able to applying the embedded system. The design specification proposed has 15 instructions, and we confirmed that Vdd is 3.3V when clock frequency is 50㎒.

멀티미디어 게임의 시공간 동기화 모델 연구

성해경,박창균 조선대학교 에너지.자원신기술연구소 2004 에너지·자원신기술연구소 논문지 Vol.26 No.1

This paper outlines the means of expressing a spatio temporal synchronization model which allows multimedia data to be processed and translated in terms of time and space. Aptly named an Assertion-based Multimedia objects Spatio-TEmporal Synchronization model(AMSTES), it will provide a means of representing all the objects present in space and time, and furthemore, will use the representations to produce an executable code via a spatio temporal formula. In essence, AMSTES aims to define spatial and temporal concepts using assertions in a game scenario sketch, and aptly express a spatio-temporal synchronization model.

직업적 아크릴아미드 폭로에 의한 다발성 신경병증

정해관,권용욱,어경윤,김병준,양정선,정철,진영우,이미영,강성규 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.3

Authors report a first Korean case of polyneuropathy in an acrylamide producing factory together with an environmental and epidemiologic survey for the ten workers of the same workplace and 46 workers in the production and manufacturing acrylamide in Ulsan, Korea. The case is 30 years old man who worked in the production of the acrylamide for two years. In August, 1997, he had a weakness of the lower extremity with loss of body weight of 15 Kg which progressed to paresthesia of the limbs, the loss of vibration sense, difficulty in walking, speech disturbance, dysuria, constipation, difficulty in erection and swallowing difficulty. Neurologic examination showed a complete loss of vibration and position sense, and loss of deep tendon reflex in all the limbs. There was a contact dermatitis-like skin lesion on the feet. Electrodiagnostic test showed a generalized polyneuropathy of moderate degree involving motor and sensory component of peripheral and cranial nerves. After 8 months' cessation from exposure and supportive care, his symptoms were completely resolved, but abnormality in electrodiagnostic test and vibrotactile perception threshold still persisted, although much improved than before. There were 11 workers in the same workplace of the case, producing acrylamide by microorganism as a catalyst. Environmental monitoring of the workplace revealed air borne concentration of the acrylamide to be from 0.05 to 0.23 mg/m3 by personal sampling and from 7.65 to 11.65 mg/m3 by area sampling during filter exchanging process, which far exceeds TLV-TWA of 0.03 mg/m3. However, acrylamide was not detected from the plasma of the workers. Symptom questionnaire showed a markedly higher complain of neurologic symptoms, compared to the workers of the other acrylamide producing companies. Electrodiagnostic test showed a several workers are in the lower normal range without definite abnormality. Vibrotactile perception threshold by Vibratron Ⅱ showed a significantly increased threshold in the workers of the same workplace compared to the other acrylamide workers and significantly decreased test score of color vision compared to normal controls. After improvement of the production process and strict wearing of the protective device, most workers reported the improvement of clinical symptoms, but vibrotactile perception threshold was not improved. These result suggests the need for the effective environmental monitoring together with a periodic biological monitoring. Development of effective screening test is urgently needed to control and assess the skin absorption of acrylamide.

하악골에서 발생한 골아 세포종을 닮은 골육종의 치험 1례

이성근,정인교,박혜련 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.3

Typical osteoblastoma is generally considered to be a rare benign primary bone tumor that is seen primarily in children and young adults and curable by complete excision. However, the recurrence, aggressive behavior, or malignant transformation of this lesion was reported in some cases. It is reported that the malignant or aggressive osteoblatoma is really osteoblastoma-like osteosarcoma. Therefore, although this lesion is diagnosed as benign histologically. the operator must observe the postoperative course carefully. This article is to report a case of osteoblastoma-like osteosarcoma occurred in the mandible of 22 years old male patient with literature review.

Rp 용 조형물의 조형영상처리기술

池海成,李大善 弘益大學校 科學技術硏究所 1999 科學技術硏究論文集 Vol.10 No.1

Rapid prototyping can fabricate physical models directly from the CAD models. Since actual production of a physical model using traditional techniques has been quite expensive, a prototyping apparatus like Stereolithography can recently be used to get physical verification of a product design rapid and economic. This, however, still costs some expenses enough to take an interest in more economic methods, visual simulation techniques. Development of an intermediate geometric model of the product design and careful inspection of its virtual shape before the real fabrication take no physical cost. In this paper we propose an image simulation method especially for supporting an rapid prototyping application. The method can demonstrate its capability of image simulation by comparing the simulated images with their physical models.

조선소 용접공진폐증의 발생에 관련된 요인 분석

손혜숙,최성룡,유영진,이채언 大韓産業醫學會 1994 대한직업환경의학회지 Vol.6 No.1

부산지역조선소에 근무하는 547명의 용접공을 대상으로 용접공진폐증의 유소견율을 작업부서, 용접기간, 용접시작 년도, 연령과 마스크사용에 따라 비교하였다. 전체 용접공진폐증의 유소견율은 7.9%로 동지역에서 1989년 조사된 유소견율 8.9%보다 낮았다. 용접공진폐증의 유소견율은 용접작업기간이 길수록, 작업시작년동가 빠를수록, 마스크를 사용하지 않은군에서 통계적으로 유의하여 높게 관찰되어 용접공진폐증의 발생에 용접작업기간, 환경개선정도와 마스크사용의 영향을 미치는 인자로 관찰되었다. 이들 인자중 용접기간 5-9년군이 5년 이하군에 대하여, 1975년 이전 용접시작군, 1976-81년 용접시작군이 1982년 이후 시작군에 대한 odds ratio가 각 각 5.98, 8,8과 12.38였다. 용접공진폐증자 37명의 방사선사진은 과거와 비교한 결과 진행된 예는 없었으며, 10명은 변화가 없었다. 비진폐군에 비하여 용접공진폐군에서 결핵유병율이 통계적으로 유의하게 높게 관찰되었다. 이상의 결과에서 조선소에서 발생하는 용접공진폐증은 환경개선 및 보호구의 적절한 착용 등으로 발생을 예방하는 것이 가능하고, 발생된 경우라도 역시 적절한 관리에 의해 호전되므로, 조선조 용접공 진폐증은 타 진폐증과는 구분 관리되어야 할 것이다. 즉 조선소 용접공진폐증의 발생을 예방하기 위하여 지속적인 법적규제와 근로자 개인에 대한 보호구 사용의 필요성 및 올바른 보호구 사용에 대한 교육이 필요하겠으며, 발생한 용접공진폐증은 즉각적인 작업부서전환보다는 진폐증이 발생한 부서의 환경개선을 고려함과 동시에 진폐발생자에게 보호구착용 등을 지도하면서 추적 관리를 하여야 할 것이다. Pneumoconiosis is one of the most important occupational disease in Korea. In Pusan, most of pneumoconiosis is welders' pneumoconiosis developed in shipyard. With clinical(including interview with every patients) and radiological(chest radiographs) methods, author purposed to know the factors related to the concept for health care(management) of shipyard welders. The prevalence rate of welders' pneumoconiosis was calculated by the means of reading of chest radiographs of 547 shipyard welders. The prevalence rate of welders' pneumoconiosis(including suspected pneumoconiosis, category 0/1) was 7.9%. It was lower than that (8.9%) in same area studied in 1989. Prevalence rate increased as total welding duration increased and the welding work began early. It was higher in welders who did not use antidust mask. Probability of the occurrence of welder's pneumoconiosis was related with the time that the welder began welding work. sixteen cases among the 37 who were diagnosed as pneumoconiosis returned normal in the follow-up chest radiographs. There was no case aggrevated. The pertinent management for the personnels and their working environment contributed to the decrease of incidence of the welders' pneumoconiosis and the improvement of the disease. Tp prevent the occurrence of the pneumoconiosis in shipyard welders, it seems to be necessary for the company to be supervised under the any legislation, and to educate the welder to use the protective apparatus. It is suggested that considerate and continuous observation under the adequate management is preferable to the immediate conversion of the working department for the pneumoconiotic welders.