• 대한공업교육학회지
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• 제36권1호
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• pp.75-94
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• 2011

이 연구의 목적은 이 연구에서 제안하는 팀티칭 수업 과정 모형(안)의 단계를 바탕으로 공업계 고교 전문교과교사와 산학겸임교사 간 팀티칭의 실태와 인식을 비교 조사하고자 하였다. 이를 통하여 궁극적으로는 공업계 고교 전문교과교사와 산학겸임교사 간 팀티칭 활성화 방안 연구 및 실행을 위한 기초 자료를 제공하는 데 있다. 연구 결과는 다음과 같다. 첫째, 전문교과교사와 산학겸임교사는 팀티칭이 필요하다고 동일하게 인식하고 있었지만, 이러한 필요성에 대하여 전문교과교사는 산학겸임교사보다 낮게 인식하는 경향을 보였다. 둘째, 팀티칭 준비 단계에서 두 교사 집단은 교사 간 사전 교류 및 연수가 가장 도움이 된다고 인식 하였다. 따라서 팀티칭 준비 단계에서는 교사 간 의견 차이를 좁히고 소통의 기회를 갖도록 자리를 마련하는 것이 필요하다. 또한 충분한 학습 기자재 및 물리적 시설이 마련되어있는지 확인하여 팀티칭 실행 시 이론적 내용과 실습의 통합이 이루어져 팀티칭 운영이 매끄럽게 진행 될 수 있게 준비를 해야 한다. 셋째, 팀티칭 계획 단계에서 두 교사 집단은 팀티칭 계획 활동을 서로 협력하여 공동으로 수립하고, 수업 활동은 협력 계획에 따라 분담하여 각자 진행하거나 서로 협력하여 공동으로 진행하는 것이 바람직하다고 인식하였다. 이에 교사 간 명확한 역할 분담과 수업 계획을 사전에 체계적으로 준비 할 필요가 있다. 그리고 응답자들은 수업 계획서 개발 시 주된 방해 요인은 현행 교육과정, 재정, 수업 진도 강요라고 인식하고 있었다. 따라서 수업 계획 시 자율적으로 교사 재량에 의한 수업이 가능하도록 교육과정의 편성과 운영에 있어 자율성이 보장되어야 한다. 넷째, 팀티칭 실행 단계에서 두 교사 집단은 동일 수업 내 수업 활동을 분담하여 진행하되 관련 있는 내용은 협력하는 것이 바람직한 수업 운영 형태라고 인식하였다. 그리고 효과적인 팀티칭 실행을 위해 전문교과교사는 '학생의 흥미와 관심에 따른 학습 내용'을 산학겸임교사는 '충분한 학습기자재 및 물리적 시설 환경 제공'이 가장 필요하다고 인식하고 있다. 다섯째, 팀티칭 평가 단계에서 바람직한 성적 평가 형태에 대해 두 교사 집단은 전문교과교사가 50%, 산학겸임교사가 50% 평가하여 반영하는 것이 가장 바람직하다고 인식하고 있는 것으로 나타났다.

• Journal of Chest Surgery
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• 제39권7호
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• pp.561-564
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• 2006

폐절제술 후 발생하는 유미흉은 드물지만 심각한 합병증이다. 두 명의 폐암 환자에서 폐엽 절제술 및 종격동 림프절 청소술 후에 유미흉이 발생하였으나, 고전적 보존적 치료에 피하 옥트레오타이드 주사 요법을 추가하여 성공적으로 치료하였다.

• Journal of Korean Neurosurgical Society
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• 제50권1호
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• pp.23-29
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• 2011

Objective : The aim of the study is to determine the efficacy of indocyanine green (ICG) videoangiography for confirmation of vascular anastomosis patency in both extracranial-intracranial and intracranial-intracranial bypasses. Methods : Intraoperative ICG videoangiography was used as a surgical adjunct for 56 bypasses in 47 patients to assay the patency of intracranial vascular anastomosis. These patients underwent a bypass for cerebral ischemia in 31 instances and as an adjunct to intracranial aneurysm surgery in 25. After completion of the bypass, ICG was administered to assess the patency of the graft. The findings on ICG videoangiography were then compared to intraoperative and/or postoperative imaging. Results : ICG provided an excellent visualization of all cerebral arteries and grafts at the time of surgery. Four grafts were determined to be suboptimal and were revised at the time of surgery. Findings on ICG videoangiography correlated with intraoperative and/or postoperative imaging. Conclusion : ICG videoangiography is rapid, effective, and reliable in determining the intraoperative patency of bypass grafts. It provides intraoperative information allowing revision to reduce the incidence of technical errors that may lead to early graft thrombosis.

• 한국축산식품학회지
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• 제42권6호
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• pp.1009-1019
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• 2022

In recent years, biocontrol of foodborne pathogens has become a concern in the food industry, owing to safety issues. Listeria monocytogenes is one of the foodborne pathogens that causes listeriosis. The major concern in the control of L. monocytogenes is its viability as it can survive in a wide range of environments. The purpose of this study was to isolate lactic acid bacteria with antimicrobial activity, evaluate their applicability as a cheese starter, and evaluate their inhibitory effects on L. monocytogenes. Lactococcus lactis strain with antibacterial activity was isolated from raw milk. The isolated strain was a low acidifier, making it a suitable candidate as an adjunct starter culture. The commercial starter culture TCC-3 was used as a primary starter in this study. Fresh cheese was produced using TCC-3 and L. lactis CAU2013 at a laboratory scale. Growth of L. monocytogenes (5 Log CFU/g) in the cheese inoculated with it was monitored during the storage at 4℃ and 10℃ for 5 days. The count of L. monocytogenes was 1 Log unit lower in the cheese produced using the lactic acid bacteria strain compared to that in the cheese produced using the commercial starter. The use of bacteriocin-producing lactic acid bacteria as a starter culture efficiently inhibited the growth of L. monocytogenes. Therefore, L. lactis can be used as a protective adjunct starter culture for cheese production and can improve the safety of the product leading to an increase in its shelf-life.

• 대한전자공학회논문지SP
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• 제48권6호
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• pp.35-47
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• 2011

현 3D 실험방송에서는 기존 시스템과의 역호환성 보장을 위해 좌 영상과 우 영상의 듀얼 스트림을 전송하는 서비스 호환(service compatible) 3D 서비스를 진행하고 있다. 이와 같은 듀얼 스트림 방식은 제한된 방송대역 19Mbps에서 좌,우 두 개의 영상을 전송함으로 화질의 제약이 따를 수 있다. 이에 본 논문에서는 상기 고정된 대역폭으로 인한 화질의 열화없이 안정적인 화질을 제공할 수 있는 NRT(Non-RealTime)기반 연동형 지상파 3D 방송 시스템을 제안하였다. 제안한 시스템은 지상파 방송대역에 국한되지 않고 비 실시간으로 좌 또는 우 영상을 미리 전송하여 저장하고, 미리 저장된 콘텐츠와 실시간 방송 콘텐츠의 동기화를 통해 고화질 스테레오스코픽 영상을 구성한다. 이를 위해 본 논문에서는 실시간 방송기술과 비 실시간 방송기술을 각각 분석하고, 비 실시간 연동형 고화질 3DTV시스템을 구현할 수 있는 알고리즘을 통한 실험결과를 통해 제안한 NRT 기반 연동형 지상파 3D 방송 시스템을 검증하였다.

• Journal of Periodontal and Implant Science
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• 제29권2호
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• pp.371-387
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• 1999

The present study was performed to assess and compare the clinical and microbiological effects following local application of 2% minocycline gel or 0.1% chlorhexidine subgingival irrigation to augment scaling and root planing in patients with moderate to advanced chronic adult periodontitis. 32 healthy patients with moderate to advanced chronic adult periodontitis were enrolled in the study. In each patient, the quadrants that had 2 or more teeth with $5{\sim}8mm$ probing pocket depth and radiographic evidence of alveolar bone loss were selected and divided into test side and control side according to the split-mouth design. All patients received standardized oral hygiene instructions at the beginning of the study and all remaining teeth received scaling and root planing until 0 week. The 2% minocycline gel was applied to periodontal pocket at 0, 1, 2, 3 week in the test side. The 0.1% chlorhexidine solution and the normal saline were irrigated subgingivally for about 30 seconds in the positive control side and negative control side respectively. The clinical and microbiological analysis carried out at 0, 4, 8, and 12 weeks . The results of this study were as follows; 1. In saline irrigation group, there was no adjunctive effects in probing pocket depth reduction, sulcular bleeding index and no significant changes in relative proportions of subgingival bacteria. 2. The chlorhexidine irrigation as an adjunct to scaling and root planing results in reduction in the plaque index and sulcular bleeding index, but there was not statistically significant. The relative proportion of spirochetes was significantly reduced, but the proportion of motile rods was no significant reduction. 3. The minocycline gel delivered subgingivally as an adjunct to scaling and root planing provide significant benefit in reducing probing depths and sulcular bleeding index compared to saline and chlorhexidine irrigation groups. 4. The relative proportions of spirochetes and motile rods were significantly reduced and the proportions of cocci and non-motile bacteria were correspondingly increased in the minocycline gel group. In conclusion, minocycline gel delivered subgingivally as an adjunct to scaling and root planing induces clinical and microbial responses more favorable for periodontal health than saline and chlorhexidine subgingival irrigation.

• Journal of Periodontal and Implant Science
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• 제28권4호
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• pp.531-545
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• 1998

The objective of the present study was to evaluate the clinical and microbiological effects of scaling and root planing combined with local application of 2% minocycline gel to patients with moderate to advanced chronic adult periodontitis. 27 healthy patients with moderate to advanced chronic adult periodontitis were enrolled in the study. The quadrants that had 2 or more teeth with $5{\sim}8mm$ probing pocket depth and radiographic evidence of alveolar bone loss were selected and divided into test side and control side according to the splitmouth design. All patients received standardized oral hygiene instructions at the beginning of the study. Subsequently scaling and root plaining was performed on all remaining teeth until 0 week. The 2% minocycline gel was applied to periodontal pocket at 0, 1, 2, 3week in the test side. The normal saline was irrigated subgingivally for about 30 seconds in the control side. The clinical and microbiological analysis was carried out at 0, 4, 8, and 12weeks. The results of this st udy were as follows; 1.2% minocycline gel delivered subgingivally as an adjunct to scaling and root planing provided benefit in reducing sulcular bleeding index and pocket depth than the use of normal saline. 2. The relative proportion of cocci and non-motile bacteria was increased in the test and control groups with time, and there was no statistically significantdifference between two groups. 3. The proportion of spirochetes was slowly reduced in the control group, but, inthe test group, they were remarkably reduced from the 4th week, and there was a statistically significant difference between two groups. 4. In both groups, the relative proportion of motile rods was notably decreasedat the beginning of the study, and remained until 12th week in the test group,but, in the control group, they were slowly increased from the 4th weekand finally similar to that of the initial examination. In conclusion, local application of 2% minocycline gel may be effective in the clinical and microbiological aspects as an adjunct to scaling and root planing in periodontal disease sites.

• Management Science and Financial Engineering
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• 제10권1호
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• pp.43-52
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• 2004

This paper empirically investigates potential factors that might affect firms' incentives to license out technology. The analysis is done with the help of a panel data set of observed licensing transactions involving U.S. public companies in high-technology industries. The important explanatory factors relate to the firm characteristics such as the company's stock of technological knowledge (patent stock). prior involvement in technology licensing. the company size, R&D intensity and capital expenditure. The results suggest that there seems to be significant inter-sectoral differences as well as similarities in determinants of the propensity to transfer technology through licensing agreements.

• Communications for Statistical Applications and Methods
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• 제8권3호
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• pp.851-858
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• 2001

Using the normalized sample Lorenz curve which is introduced by Kang and Cho (2001), we propose the test statistics for testing of normality that is very important test in statistical analysis and compare the proposed test with the other tests in terms of the power of test through by Monte Carlo method. The proposed test is more power than the other tests except some cases

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제42권6호
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• pp.393-393
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• 2016