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        재출현 이후 국내 삼일열 말라리아 발생 현황

        염준섭,박재원 대한감염학회 2008 감염과 화학요법 Vol.40 No.4

        Vivax malaria re-emerged in the Republic of Korea (ROK) in 1993. Sixteen years have passed and epidemiological characteristics have changed since then. The annual incidence of this disease which had increased rapidly through 2000, started to decrease rapidly in 2001, reaching about 800 cases in 2004. But it started to change again in 2005 and since then, about 2000 cases are occurring annually. Not only the cases are increasing but also geographic distributions are expanding into cities and counties bordering Seoul. Based on these data, possibility of occurrence of local transmission is very high. Malaria situation in North Korea is not so different from the ROK. Although annual incidence of diseases are decreasing every year, incidences in areas near demilitarized zone which can affect the ROK are still serious. And now economical and cultural exchange between the ROK and Nouth Korea is increasing every year. This also means that risks of exposure to this disease among civilians are also increasing, Control strategies in the beginning of resurgence had been focused mainly on decreasing transmission and cases of malaria. Main parts of these strategies were vector control and chloroquine chemoprophylaxis among soldiers stationed in high-risk areas. But now, epidemiological characteristics have changed and our control strategies need adjustment considering these changes.

      • KCI등재

        대구지역 중소제조기업 정보화 특성 분석

        심준섭,윤병섭 한국중소기업학회 2002 中小企業硏究 Vol.24 No.4

        본 연구는 대구지역 중소제조기업 정보화 쪽성물 분석하였다. 이를 위해 대구지역 중소제조기업 상시종사자수 5인 이상 300인 미만을 대상으로 2002년 4월 1일부터 5월 30일까지 2개월에 걸쳐 설문조사를 실시하였다. 통계처리는 391매를 이용하였으며, 차이검정, 분산분석, 회귀분석으로 중소제조기업 정보화에 대한 영향책물 검정하였다. 표본에 의한 대구지역 중소제조기업 정보화의 특성은 다음과 같다. 첫째, 정보화 관련부서가 있는 기업과 정보화 관련부서가 없는 기업에 대한 차이검정에서 정보화 관련부서가 있는 기업이 회사의 업력이 더 높고 종업원 수가 더 많으며, 최고 경영자의 연령이 더 높은 것으로 나타났다. 두 집단은 통계적으로 유의하였다. 둘째, 정보화 관련부서가 있는 기업과 정보화 관련부서가 없는 기업에 대한 차이검정에서 정보학 관련부서가 있는 기업이 자본금 규모가 더 크고 매출액이 더 많으며, 경상이익이 더 높은 것으로 나타났다. 두 집단은 통계적으로 유의하였다. 셋째, 종업원 규모별 홈페이지 활용정도는 고객외견 수립에 많이 활용하는 것으로 나타났지만 전자상거래는 활발하지 않은 것으로 보인다. 그리고 정보시스템의 지원분야는 생산 ·출하관리, 재고 물류관리, 수주관리 순으로 나타나고 있다. 넷째, 중소기업의 정보화에 영향을 미치는 변수를 알아보기 위하여 다중회귀분석을 실시하였다. 분석결과 정보화 부서 설치 여부, 홈페이지 개설 여부, 정보화에 대한 최고경영자 의지가 중소기업 정보화 촉진에 큰 영향을 미치는 것으로 나타났다. 중소기업 정보화 촉진을 위한 정책은 정보화를 전담하는 부서의 조직과 정보화 기기의 설치 및 활용, 정보화에 대한 인식제고 등에 중점을 두어야 할 것으로 보인다. The main purpose of this study is to survey of informatization characteristics of small and medium-sized manufacturing enterprise in Daegu area. Survey data was collected for sample of 391 firms from 5,915 small and medium-sized enterprises with constant employees from 5 to 309 in Daegu area from April to May in 2002. The main result$ of empirical study are as follows. first, 1 found that the enterprise with informational department was statistically more long business history, large employees, and high age of top manager than nonexistence enterprise with Informational department. Both groups were significant statistically. Second, the enterprise with information department was statistically more large size of capital, sales, and high margin ratio than nonexistence enterprise with information department. Both groups were significant statistically. Third, it seemed very often to collect of customer's opinion on the degree of use of homepage In the size of employee, but electronic commerce is not in ordering. And the support part of information system is ranked production . shipment management, inventory . physical distribution and ordering control. Fourth, We can say that the existence or nonexistence of informational department, homepage, and the intention of top manager in information have an effect on information characteristics of small and medium-sized manufacturing enterprises. 1 hope that the policies to promote informatization characteristics of small and medium-sized manufacturing enterprises focus on organization of informational department, use of information machinery, and the rise of recognition in information. Small and medium-sized enterprises in Daegu are very weak in information and in use of e-commerce. Therefore, they are required to support and promote the introduction, establishment of e-commerce, and information policies.

      • 대구지역 중소기업의 정보화 특성에 대한 실태분석

        심준섭 경운대학교 산업기술연구소 2002 産業技術硏究論文誌 Vol.5 No.1(A)

        The main purpose of this study is to survey information characteristics of small and medium-sized enterprise in Daegu area. Data was collected for 391 firms' samples from 5,915 small and medium-sized enterprises with constant employee from 5 to 300 in Daegu area. The period of this survey is 4.1- 5.30 in 2002. The main results of empirical study are as follows. First, I found that the enterprise with information department is statistically more longer business history, many employees, and the age of top manager than enterprise without informational department. Second, information is related to size of capital but sales and margin ratio is not. The enterprise with information can make more faster. Third, informational enterprises systematically more higher intention of top manager, many person related information, investment ratio to sales than not. In the number of employee the intention of top manager, number of person related information, age of top manager is explain each other, except investment ratio to sales. Small and medium-sized enterprise in Daegu is very weak to informationize and use. Therefore, it is required to develop small and medium-sized enterprise the sales promotion and trade relation in Daegu.

      • 이종마찰압접재 계면의 기계·금속조직학적 거동 및 파면특성 : STS304와 SM15C재를 중심으로 For STS304 and SM15C

        오환섭,박경식,박준건,오정국,백영남 慶熙大學校 材料科學技術硏究所 1998 材料科學技術硏究論集 Vol.11 No.-

        In this study is behavior of crack propagation and fracture under static tensile load, shear load, rotary bending fatigue load in friction welded dissimilar materials. Crack was observed in fine ferrite zone of SM15C and heat affected zone of STS304. Plastic flow was occured by friction welding process, so direction of crack is inclined with welded surface. Fatigue fracture most occurred in SM15C heat affected zone around interface. Fibrous zone with the view of macroscope and dimple pattern with the view of microscope were observed at fracture surface. Result is more metal micrstructure dependence than stress dependence by mechanical and metallic mechanics.

      • 배양골세포 이식이 치조골재생에 미치는 영향

        정순준,허익,박준봉,이만섭,권영혁 慶熙大學校 齒科大學 1995 慶熙齒大論文集 Vol.17 No.2

        This study was performed to estimate the effects of cultured bone cell inoculated on porous type hydroxyaptite for the regeneration of the artificial alveolar bone defect. In this experiment 3 beagle dogs were used, and each of them were divided into right and left mandible. Every surgical intervention were performed under the general anesthesia by using with intravenous injection of Pentobarbital sodium (30mg/Kg). To reduce the gingival bleeding during surgery, operative site was injected with Lidocaine hydrochloride (1:80,000 Epinephrine) as local anesthesia. After surgery experimental animal were feeded with soft diet(Mighty dog, Frisies Co., U.S.A.) for 1 weeks to avoid irritaion to soft tissue by food. 2 months before surgery both side of mandibular 1st premolar were extracted and bone chips from mandibular body were obtained from all animals. Bone cells were cultured from bone chips obtained from mandible with Dulbecco's Modified Essential Medium contained with 10% Fetal Bovine Serum under the conventional conditions. Porous type hydroxyapatite were immerse into the high concentrated cell suspension solution, and put 4 hours for attachment the cells on the surface of hydroxyapatite. Graft material were inserted on the artificial bone defect after 3 days of culture. Before insertion of cell-inoculated graft material, scanning electronic microscopic observation were performed to confirm the attachment and spreading of cell on the hydroxyapatite surface. 3 artificial bone defects were made with bone trephine drill on Abe both side of mandible of the experimental animal. First defect was designed without insertion of graft material as negative control, second was filled with porous replaniineform hydroxyapatite inoculated with cultured bone marrow cells as expermiental site, and third was filled with graft materials only as positive control. The size of every artificial bone defect was 3 mm in diameter and 3 mm in depth. After the every surgical intervention of animals, oral hygiene program were performed with 0.1% chlorhexidine digluconate. All of the animals were sacrificed at 2, 4, 6 weeks after surgery. For obtaining histological section, tissus were fixed in 2.5% Glutaldehyde and decalcified with Planko-Rycho Solution for 72 hr. Tissue embeding was performed in paraffin and cut parallel to the surface of mandibular body. Section in Bum thickness of tissue was done and stained with Hematoxylin-Eosin. All the specimens were observed under the light microscopy. The following results were obtained. 1. In the case of control site which has no graft material, less inflammatory cell infiltration and rapid new bone forming tendency were revealed compared with experimental groups. But bone surface were observed depression pattern on defect area because of soft tissue invasion into the artificial bone defect during the experimental period. 2. In the porous hydroxyapatite only group, inflammatory cell infiltration was prominet and dense connective tissue were encapsulated around grafted materials. osteoblastic activity in the early stage after surgery was low to compared with grafted with bone cells. 3. In the case of porous hydroxyapatite inoculated with bone cell, less inflammatory cell infiltration and rapid new bone formation activity was revealed than hydroxyapatite only group. Active new bone formation were observed in the early stage of control group. 4. The origin of new bone forming was revealed not from the center of, defected area but from the surface of preexisting bony wall on every specimen. 5. In this experiment, osteoclastic cell was not found around grafted materials, and fibrovascular invasion into regions with no noticeable foreign body reaction. Conclusively, the cultured bone cell inoculated onto the porous hydroxyapatite may have an important role of regeneration of artificial bone defects of alveolar bone.

      • KCI등재
      • 외국인 소유지분의 증대가 기업가치에 미치는 영향에 관한 연구

        심준섭 경운대학교 산업기술연구소 2002 産業技術硏究論文誌 Vol.5 No.1(A)

        The main purpose of this study is to examine the relationship between foreign equity ownership and firm value. Data was collected for 89 firms' samples from the firms listed in the Korean Stock Market Exchange for the 6 years from 1995 to 2000. I divided by the two period IMF before or after and group or non-group for the higher evidences. The total sample size is 534 year-firms. The database is used KIS-FAS. The main results of empirical study are as follows. First, I found that foreign ownership had the positive relationship on firm value statistically from 0% to 20%. But Tobin's Q falls over 20%. Second, Foreign ownership recognized that foreign investors hypothetically play a efficient monitoring role in increasing firm performance on the effects of external ownership. Third, foreign ownership was more significant after IMF than before.

      • 국내 증시에서 외국인 주식투자와 기업의 재무특성간의 관계에 관한 연구

        심준섭 경운대학교 산업기술연구소 2002 産業技術硏究論文誌 Vol.4 No.2

        The main purpose of this study is to examine the relationship between foreign investors and financial characteristics. Foreign ownership is very related financial characteristics in Korean Stock Market. In this paper, I examined that ROE and growth rate, firm size are positively but R&D and debt ratio are negatively on the changes of foreign equity. Financial characteristics are different changes in before and after IMF.

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