• International Journal of Advanced Culture Technology
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• 제12권1호
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• pp.209-219
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• 2024

We studied the effects of science high school students on the change of epistemological beliefs in chemistry and the academic achievement of chemistry by completing 'advanced chemistry'. For seven months from July 2023 to January 2024, 80 first-year students at G Science High School in Gyeongnam were surveyed and analyzed for epistemological beliefs about chemistry before and after classes in advanced chemistry. Chemistry academic achievement was classified by 'upper' and 'lower' levels based on the end-of-semester grades of 'advanced chemistry' in the second semester of the first year and analyzed with the SPSS 28 program. After completing advanced chemistry, the epistemological belief in chemistry increased in the proportion of favorable responses. After completing advanced chemistry, the proportion of favorable responses increased in detailed factors such as 'effort', 'math link', 'outcome', 'reality link', and 'concepts', while the 'visualization' factor decreased. Although completing 'advanced chemistry' positively changed students' epistemological beliefs about chemistry, visual expression showed little contribution to understanding chemical concepts. Based on the above results, we will have to focus on the design of instructors' teaching-learning, such as learner-centered inquiry experiments, creative visual expressions, etc., for successful chemistry teaching-learning.

• 유통과학연구
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• 제13권10호
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• pp.65-72
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• 2015

Purpose - A rapidly changing business environment places great demands on small and medium-sized enterprises (SMEs). These SMEs need to find strategic alternatives for continued growth and, ultimately, survival. Thus, mergers and acquisitions (M&A) are deemed an acceptable solution. Research to date has dealt with M&A in major organizations and focused on post merger integration (PMI). Our study focuses on SMEs, as they are relatively new and unknown to the public. Therefore, this study highlights successful M&A and decision making for SMEs through a case study analysis. Research design, data, and methodology - For this study, we examined an M&A case between company S, which produces cell phone parts, and company P, which produces SSD cases. We reviewed theories and previous studies in M&A literature. We comprehensively examined the decision-making procedure at each M&A stage, describing the situation of the buying company and the selling company from the period of the M&A announcement through deal completion. In addition, we conducted interviews with both companies. The data regarding this case study were collected through interviews with managers of both companies who actively participated in the M&A process. When necessary, we asked them about additional relevant information during the interviews. Results - The result of the M&A between company S and company P was deemed acceptable with the exception of the long negotiation period. However, company S was not able to prepare for PMI after the acquisition due to a controversy over acquisition values. Moreover, the employees of the newly formed company, especially those who came from company P, complained about the M&A and attempted to leave. Thus, implications for successful M&As of SMEs are as follows: First, the procedural compliance of the M&A is needed. Second, support is needed from the CEO for the working group, rather than excessive intervention during due diligence. Third, the right, talented members of the organization should be part of the process of the M&A. Fourth, the use of various types of outside expert or business consultants is needed. Fifth, the strategic intervention by Human Resource managers is required. Last, sharing M&A information among employees is important as information dissemination will help employees be more receptive to such a change. However, this study has several limitations as a single case study; more varied SME M&A case studies are needed in order to generalize the results of the study. Conclusions - Most of the research dealing with M&As has focused on major companies and PMI and neglected SMEs. Thus, our study focuses on SMEs and the decision-making procedures for M&A. This study has significantly contributed to the literature in this area and has provided practical information around the implications of sound decision-making during M&As. Specifically, the results of the study contribute to the need for research on M&A among SMEs, which to date has often been neglected as a topic of choice.

• 디지털융복합연구
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• 제11권2호
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• pp.235-242
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• 2013

본 연구에서는 정보원천 신뢰도 이론(source credibility theory)을 기반으로 비개인화된(non-personalized) 추천시스템의 일종인 평판시스템(reputation system)을 위한 평판 순위결정기법을 제안하고, 이러닝 콘텐츠 서비스에 적합한 평판시스템 모형을 제시하였다. 정보원천 신뢰도 요인 중 온라인 구전에 적합한 두 가지 요인(expertise, co-orientation)을 기반으로 사용자 평판정보를 암묵적으로 추출하는 기법을 제안하였다. 즉, 사용자의 과거 이러닝 콘텐츠 평가 정보로부터 사용자의 두 가지 신뢰도 요인을 자동적으로 추출하는 방법을 정의하고, 사용자중 높은 신뢰도를 가진 소수 평가자의 정보만을 가지고 전체 사용자의 콘텐츠 평판정보를 효과적으로 예측할 수 있는 방법을 제안하였다. 콘텐츠 평판정보를 예측하는 단계에 있어, 정보원천 신뢰도 이론이 반영된 수정된 협업 필터링(collaborative filtering) 기법을 적용하였다. 한편, 다양한 평판기법들과의 성능 비교실험을 통해, 제안하는 평판시스템 모형이 명시적인 사용자 평판정보가 부족한 기업대 소비자간(B2C) 이러닝 콘텐츠 전자상거래 사이트에 적합함을 검증하였다.

• 한국주거학회논문집
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• 제23권3호
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• pp.1-11
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• 2012

The purpose of this study was to make clear considerations in the planning of community housing and the roles of coordinators. Seongmisan village, a representative urban community village in Seoul, was selected for this study on problem solving between residents and opinion coordination between residents and coordinators. For this qualitative research, 2 residents and 2 coordinators answered 'open questionnaires' on prior basic planning, land purchase, financing, architectural planning, construction and inspection, and actual living conditions thereafter. They were each interviewed for 2 hours at a time that was 14-16 months after the residents started living in the new houses, and the records were transcribed. The following was the result. 1) The residents, who ruled the steps of prior basic planning and land purchase, did not have sufficient information or knowledge of the construction of community housing, so that they faced difficulties especially in the legal and financial aspects. 2) The coordinators participated in the project at the steps of architectural planning and construction. The residents accepted the coordinators' opinions on the choice of floor and position, and the coordinators listened to the residents' opinions on individual plans and finishing materials. In the construction step, however, there was conflict between them, and dissatisfaction occurred on the completion time and construction cost. For the successful construction of community housing, a professional coordination company needs to join the project to establish a system of opinion coordinating from the step of prior basic planning to the step of afterconstruction management.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.235-238
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• 2002

현대 산업사회의 과학기술 발달과 인구집중으로 인하여 기업의 경영조직 업무내용의 확대와 질적 변화에 의해 사무소 건축이 대형화, 고층화되어지고 있다. 특히 수많은 주체들과 분야들로 이루어진 고층사무소 사업을 수행하기 위해서는 사업 각 단계별 주요 정보에 대한 확실한 이해와 경험을 바탕으로 프로젝트 전 과정의 통합관리가 필요하다. 또한 건축계획 구조, 재료 및 시공성(Constructability)의 각 분야별 요소기술들이 효율적이고도 유기적으로 연결${\cdot}$접목되어야 한다. 그러나 설계와 시공간의 상호 인터페이스의 미비로 인한 설계와 시공업체 간의 노하우가 유기적이고 체계적으로 공유되고 있지 못하고 있으며 고층사무소 사업의 시공단계에 있어서 반복적인 문제점이 되풀이되고 있는 실정이다. 이에 본 연구에서는 고층사무소 사업의 시공성을 고려하지 않은 설계로 인해 골조공사의 시공단계에서 유사하게 반복적으로 되풀이되어 발생하고 있는 주요항목들을 파악하고 분석하여 해당 순위를 제시하고자한다.

• Journal of Korean Neurosurgical Society
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• 제61권3호
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• pp.407-414
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• 2018

Objective : The purpose of the present study was to describe an OrBitoZygomatic (OBZ) surgical variant that implies the drilling of the orbital roof and lateral wall of the orbit without orbitotomy. Methods : Design : cross-sectional study. Between January 2010 and December 2014, 18 patients with middle fossa lesions underwent the previously mentioned OBZ surgical variant. Gender, age, histopathological diagnosis, complications, and percentage of resection were registered. The detailed surgical technique is described. Results : Of the 18 cases listed in the study, nine were males and nine females. Seventeen cases (94.5%) were diagnosed as primary tumoral lesions, one case (5.5%) presented with metastasis of a carcinoma, and an additional one had a fibrous dysplasia. Age ranged between 27 and 73 years. Early complications were developed in four cases, but all of these were completely resolved. None developed enophthalmos. Conclusion : The present study illustrates a novel surgical OBZ approach that allows for the performance of a simpler and faster procedure with fewer complications, and without increasing surgical time or cerebral manipulation, for reaching lesions of the middle fossa. Thorough knowledge of the anatomy and surgical technique is essential for successful completion of the procedure.

• 정신신체의학
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• 제5권2호
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• pp.223-236
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• 1997

One faces four major developmental tasks to achieve in young adulthood, ages between 20 and 40 : intimacy, vocation, marriage and child-rearing. Intimacy is the capacity to commit oneself to concrete affiliations and partnerships and to develop the ethical strength to abide by such commitments, even though they call for significant sacrifices and compromises. Through vocation and marriage young adults become united to networks of persons, find tasks that demand involvement, and gain roles into which they fit and are fitted and which help define their identities. An occupation represents much more than a set of skills and functions : it means a way of life. The extent of vocational choice increases with educational level, and the unconscious factors are frequency the decisive element. The vocational choice stare with fantasy choices in childhood, passes through tentative choices in adolescence, realistic choices in college days, and crystallized choices in post-college days, and finally ends up to the choice of specification. Along with the hazards and the need for realignment of personality functioning, the marriage brings with it new opportunities for self-fulfillment and completion. Motives other than a romantic love gain more importance in the decision to marry and in the choice of a partner. The impulsions to marry are sexual gratification, the desire to propagate, narcissistic gratification, and a need of interdependence. Many factors such as oedipal wishes, sexuality and sexual attractions, socio-economic classes, and geography involve in selection of marriage partner. There are also various motivations to marry a romantic love, the desire for a home of one's own, sexual attractions, the wish for security and a shelter, and the wish for children. The hostile marriage, the marriage on the rebound, the marriage rooted in rescue fantasies, and sado-masochistic marriage are the examples of pathological marriages. A successful marriage will usually both Lead to and require a marked reorganization of the personality structure of each partner that will influence the lurker personality development of each. Many marital problems are largely dependent upon the personality characteristics of one partner which might well create difficulties no manor who was the spouse.

• Journal of Nutrition and Health
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• 제42권5호
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• pp.453-463
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• 2009

This study was to evaluate the effectiveness of the weight control program for female college students. The program was composed of diet and behavioral modifications for 8 weeks. A total of 78 participants enrolled the weight control program. Upon completion of the program, 53 participants experienced weight loss and 25 did not. The intakes of carbohydrate and fat were significantly decreased in both groups. However, the total diet quality index-international (DQII) scores as well as individual scores such as variety scores for protein source and adequacy scores for vegetable, fiber, calcium and vitamin C and moderation scores for empty calorie food were increased significantly in weight loss group only. In the weight loss group, weight, BMI, body fat, percent body fat and waist-hip ratio were decreased significantly. In addition, compared to the weight gain group, the weight loss group had higher changes in weight (weight loss group: -2.6% vs weight gain group: 1.5%, p < 0.001), body fat (-6.0% vs 0.0%, p < 0.001), percent body fat (-3.1% vs -0.3%, p < 0.001), waist-hip ratio (-1.0% vs 0.5%, p < 0.001) and BMI (-2.6% vs 1.3%, p < 0.01). There was no difference in blood profiles between the two groups. The changes in DQI-I scores were significantly correlated with the changes in body weight (r = -0.239, p < 0.05) and BMI (r = -0.224, p < 0.05), indicating that effective nutrition education could help improve diet quality leading to successful weight management among female college students.

• 한국컴퓨터산업학회논문지
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• 제5권1호
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• pp.9-18
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• 2004

성공적인 프로젝트 계획은 활용 가능한 일정과 더불어 프로젝트를 개발하는데 요구되는 인력을 얼마나 정확히 추정하느냐에 달려있다. 현존하는 소프트웨어 인력 추정 모델들은 생명주기 전반에 걸쳐 투입되는 총 인력과 단위시간당 소요되는 인력 분포를 제공한다. Putnam의 Rayleigh 모델이나 Phillai et al.의 Gamma 모델 모두 소프트웨어 개발이 종료되는 시점에서 투입되는 인력이 절정에 도달한다는 가정하에 모델을 제시하였다. 이는 개발완료시점까지 40%의 인력이 투입되며, 나머지 60%는 유지보수 단계에 투입됨을 의미한다. 그러나 Warburton은 실제 프로젝트는 대부분의 인력이 개발에 투입되고 설계가 종료된 시점에서 투입인력 규모가 절정에 도달하며, 유지보수에는 단지 적은 규모의 인력만이 소요됨을 관찰하였다. 따라서, 제안된 기존 모델들은 실제 프로젝트에 적용하는데 문제가 발생한다. 이러한 문제점을 해결하기 위해 본 논문은 투입인력 절정 시점 모수를 고려하지 않는 시그모이드 모델을 제시하였다. 제시된 모델을 실제 데이터에 적용하여 향상된 성능을 보였다 따라서 제안된 시그모이드 모델은 소프트웨어 개발주기 동안 투입되는 인력 분포를 추정하는데 있어서 Rayleigh나 Gamma 모델의 대안으로 적용이 가능하다.

• 터널과지하공간
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• 제28권4호
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• pp.304-324
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• 2018

싱가포르는 국토가 부족한 도시 국가의 특성으로 인해 지하 공간의 개발 및 활용을 정부차원에서 전 국가적으로 강력하게 추진하고 있다. 특히 지하철과 지하 도로와 같은 일반 얕은 심도의 지하공간의 활용뿐 아니라 대규모 지하공간 사업으로서 암반 내 지하 탄약 저장고 프로젝트를 성공적으로 마친 이후, 두번째 대규모 암반 지하공간 프로젝트인 Jurong Rock Cavern을 얼마전 준공한 바 있다. 본 논문에서는 싱가포르의 지질 분석을 통해 암반 지하공간 개발의 조건에 대해 평가한 후, 싱가포르의 다양한 지하공간 개발의 역사와 현황을 살펴본다. 지하 저수지, 지하 자동화 물류 시스템 및 물류 저장 창고 등 정부 차원에서 향후 추진이 예상되는 창의적인 암반내 주요 지하공간 관련 계획 및 기술적인 이슈들에 대해서 소개한다. 또한 이러한 대규모 암반 지하공간 개발에 관련된 향후 문제와 이슈들에 대해서 논의한다. 싱가포르의 이러한 적극적인 지하공간 개발 움직임은 또한 암반공학 및 업계에 향후 많은 기회와 과제를 줄 것으로 기대된다.