• 디지털융복합연구
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• 제17권3호
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• pp.25-33
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• 2019

최근 대학에서는 4차 산업혁명 시대에 활약할 수 있게 소프트웨어 기초교육을 강화하고 있다. 비전공 학생들의 경우 프로그래밍에 대한 기본지식이나 전공과목과의 연계성이 낮기 때문에 이들의 이해를 돕기 위한 다양한 교수법이 필요하다. 따라서 본 논문에서는 비전공자를 대상으로 하는 소프트웨어 기초교육의 개선 방안을 제언하고자 한다. 이를 위해, 시연중심모델을 기반으로 단계적 블라인드 처리된 프로그래밍 실습과정을 적용한 학습모델을 설계하여 실제 수업에 적용하고, 학습자들의 문제해결 능력을 분석한 결과, 주차가 진행될수록 학습자 스스로 문제를 해결하는 비율이 상승되는 것을 확인하였다. 제안하는 방법을 통해, 비전공자에게 프로그래밍 과목에 친숙해질 수 있는 기회를 제공하고 지속적인 학습동기를 부여할 수 있다. 후속 연구에서는 보다 다양한 측면에서 학습자들의 학습성과를 분석하고 학습내용의 난이도에 따른 효율적인 교수법에 대한 연구가 필요할 것으로 사료된다.

• 농촌계획
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• 제24권4호
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• pp.69-80
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• 2018

In this study, we typified the project for revitalizing the rural area through text analysis using news data, and analyzed the main direction and characteristics of the project. In order to examine the factors emphasized among the issues related to the revitalization of rural areas, we used news data related to 'tourism' and 'livelihood', which are the main keyword of the project to promote rural areas. In the analysis, text mining techniques were used. Topic modeling was conducted on LDA techniques for major projects in 'tourism' and 'livelihood' keyword. Based on this, this study typified the projects that are carried out for the activation of rural areas by topic. As a result of the analysis, it was fount that the topics included in the project were distributed in 11 sub-types(Tourism Promotion, Regional Specialization, Local Festival, Development of Regional Scale, Urban and Rural Exchange, Agricultural Support, Community Forest Management, Improve the Settlement Environment, General Welfare Service, Low Class Support, Others). The characteristics of the rural revitalization projects were examined, and it was confirmed that domestic projects were carried out by tourism-oriented projects. To summarize, the government is making projects to revitalize rural areas through related ministries. Within the structure where the project is spreading to the region, a lot of projects are being carried out. It is understood that the tourism and welfare oriented projects are being carried out in the revitalization project of the domestic rural area. Therefore, in order to achieve the goal of rural revitalization, it is believed that it will be effective to carry out a balanced project to improve the settlement environment of the residents.

• Journal of Trauma and Injury
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• 제31권3호
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• pp.143-150
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• 2018

Purpose: We have implemented a multi-disciplinary Screening, Brief Intervention and Referral to Treatment (SBIRT) protocol to prevent individuals who sustained alcohol-related traumatic injuries. We therefore conducted this single-center, prospective, randomized, controlled trial (RCT) to assess its efficacy. Methods: All the enrolled patients (n=30) were randomized to either the SBIRT group or the control group. In the current RCT, the proportion of the patients who reduced the amount of alcohol consumption and those who received a specialized treatment served as primary outcome measures. Moreover, changes in a 3-item version of the Alcohol Use Disorders Identification Test Consumption (AUDIT-C), Severity of Dependence Scale (SDS) and Kessler Psychological Distress Scale (K-6) scores at 3 months from baseline served as secondary outcome measures. Results: At 3 months, the proportion of the patients who reduced the amount of alcohol consumption was significantly higher in the SBIRT group as compared with the control group (86.7% vs. 57.1%, p=0.02). Moreover, the proportion of the patients who received a specialized treatment was also significantly higher as compared with the control group (26.7% vs. 1.4%, p=0.01). Furthermore, there were significant differences in changes in the AUDIT, SDS and K-6 scores at 3 months from baseline between the two groups (p<0.05). Conclusions: In conclusion, our results indicate that the SBIRT is effective in reducing hazardous and harmful levels of drinking, the degree of alcohol dependence and that of psychological distress in at-risk drinkers.

• International Journal of Knowledge Content Development & Technology
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• 제8권4호
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• pp.33-53
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• 2018

Since business startups are known to have positive effects on the economic growth of a country, it is necessary to review the factors influencing the willingness to start new businesses for the people to act on business startups. In this regard, the study sought to reexamine the findings of previous research showing that the innovative, initiative, and risk-taking characteristics, which are the constitutive elements of entrepreneurships, influence the willingness to start up. Furthermore, in this study, attempts were made to empirically analyze the direct and indirect relationships of self-leadership influencing the willingness to start new businesses. Consequently, first, it showed that college students' entrepreneurship has positive effects on the willingness to start new businesses. Second, the significance of the gender of college students was not confirmed as to playing a regulating role in the relationship between entrepreneurship and the willingness to start up. Third, the relationship between self-leadership and the willingness to start new businesses was validated to be significant in a positive direction. Fourth, no mediating effect of self-leadership in the relationship between entrepreneurship and the willingness to start new businesses was observed. Such research results have the following significances. First, while there is an awareness that the concepts of business start- up, entrepreneurship, and leadership carry masculinity, the lack of regulating effect of gender may reflect the changing phases of time and society where women's participation has been increasing. Second, self-leadership is a concept by which one pioneers his or her own life and an influencing factor on the willingness to start up; however, since it has enormous impacts on the entrepreneurship and willingness to start up, relevant mediating effects were not observed and the magnitude of the important influence between entrepreneurship and the willingness to start up were confirmed.

• 문화기술의 융합
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• 제5권3호
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• pp.101-106
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• 2019

본고는 비디오아트의 초기 역사에서 비디오가 내재하고 있는 사회 변형적 가치를 문화적 실천으로 구체화하고 학제 융합적인 학습과 연구의 방법론을 제시함으로써, 사회의 관계적 회로의 심미화를 고안한 폴 라이언(1943-2013)의 예술 세계의 역사성과 미학적 함의를 검토한다. 이를 위하여 제2장에서는 1969년에 폴 라이언이 처음으로 참여했던 미술갤러리 전시 "창조적 미디어로서의 텔레비전"에 출품한 작품을 분석한다. 이 비디오설치 작품에서 라이언은 비디오를 하나의 커뮤니케이션 시스템으로서 제안하며 사이버네틱스의 '피드백' 개념을 실험한다. 이어서 제3장에서는 예술가 콜렉티브 '레인댄스 코퍼레이션'과 잡지 "래디컬 소프트웨어"에 참여한 라이언의 커뮤니케이션 테크놀로지에 대한 담론적 활동에 주목하였다. 이 시기 라이언은 비디오를 사이버네틱스의 확장을 위한 도구로 간주하였다. 마지막으로 제4장에서는 '환경적 현실에 대한 공유된 지각'에 기초한 생태적 접근법의 개발을 주로 다루었으며, 비디오 미디어가 사회의 변화와 커뮤니케이션을 위한 가장 효과적인 수단이 될 수 있다는 라이언의 인식을 확인하였다.

• 실천공학교육논문지
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• 제10권1호
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• pp.57-62
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• 2018

평생직업개발에 대한 중요성 인식, MOOC의 확산과 온라인 교육에 대한 관심이 증대되면서 평생직업능력개발을 위한 교육 시스템 마련을 위한 노력이 계속되고 있으나 기술공학분야의 역량기반 평가 도구와 시스템에 대한 설계 개발에 대한 연구는 미진한 실정이다. 이에, 본 논문에서는 평생직업능력개발을 위한 기술공학분야의 직무역량을 평가하기 위한 시스템(Competence-based Assessment System for Lifelong Vocational Competency Development : CBAS-LVCD)을 설계 및 구축하였다. CBAS-LVCD는 NCS 기반 루브릭 평가 도구를 사용하여 학습자를 평가하고 기술공학분야에서 사용할 시뮬레이션 도구를 제공한다. 이는 실습과 온라인 시험이 제한적인 기술 엔지니어링 분야의 실무에 필요한 역량을 평가하는 데 큰 도움이 될 것으로 기대된다.

• Journal of Periodontal and Implant Science
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• 제48권6호
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• pp.337-346
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• 2018

Purpose: Peripheral artery disease (PAD) is a form of arteriosclerosis that occurs in the extremities and involves ischemia. Previous studies have reported that patients with periodontitis are at high risk for PAD. However, the relationship between these 2 diseases has not yet been fully elucidated. In this cross-sectional study, we investigated this relationship by comparing patients with PAD to those with arrhythmia (ARR) as a control group. Methods: A large-scale survey was conducted of patients with cardiovascular disease who visited Tokyo Medical and Dental University Hospital. We investigated their oral condition and dental clinical measurements, including probing pocket depth, bleeding on probing, clinical attachment level, and number of missing teeth; we also collected salivary and subgingival plaque samples and peripheral blood samples. All patients with PAD were extracted from the whole population (n=25), and a matching number of patients with ARR were extracted (n=25). Simultaneously, ARR patients were matched to PAD patients in terms of age, gender, prevalence of diabetes, hypertension, dyslipidemia, obesity, and the smoking rate (n=25 in both groups). Real-time polymerase chain reaction was performed to measure the bacterial counts, while the enzyme-linked immunosorbent assay method was used to measure anti-bacterial antibody titers and proinflammatory cytokine levels in serum. Results: PAD patients had more missing teeth ($18.4{\pm}2.0$) and higher serum levels of C-reactive protein ($1.57{\pm}0.85mg/dL$) and tumor necrosis factor-alpha ($70.3{\pm}5.7pg/mL$) than ARR patients ($12.0{\pm}1.7$, $0.38{\pm}0.21mg/dL$, and $39.3{\pm}4.5pg/mL$, respectively). Meanwhile, no statistically significant differences were found in other dental clinical measurements, bacterial antibody titers, or bacterial counts between the 2 groups. Conclusions: Our findings suggested that PAD patients had poorer oral and periodontal state with enhanced systemic inflammation.

• 문화기술의 융합
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• 제5권1호
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• pp.211-217
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• 2019

대학에서의 학기말 프로젝트 작업은 한 학기동안 학습한 내용을 기반으로 학생 스스로 주제 선정, 계획, 결과 도출 과정을 진행해 가는 학습자 중심의 학습 방법이다. 소프트웨어 관련 교과목의 학기말 프로젝트 작업의 경우 해당 프로그래밍 언어에 대한 다양한 기법을 학습 한 후 창의적인 프로그램 개발 과정을 통해 결과물을 완성하게 된다. 그러나 교양과목으로 소프트웨어 교과목을 수강하는 컴퓨터 비전공자는 프로그래밍 언어를 이해하는데 많은 어려움을 느끼고 있기 때문에 학생들이 프로젝트 수행을 원활하게 진행 할 수 있도록 유도하는 교수자의 피드백이 필요하다. 따라서 본 연구에서는 컴퓨터 비전공자의 학기말 프로그래밍 교과목에 대한 프로젝트 수행과정에 적용 할 수 있는 교수자-학습자간의 토론을 통한 피드백 방법을 제안하고, 실제 프로젝트 작업과정에 적용하여 진행과정 및 결과물 분석을 통해 의미 있는 결과를 확인하였다.

• Journal of Microbiology and Biotechnology
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• 제29권3호
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• pp.382-391
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• 2019

Many poultry eggs are discarded worldwide because of infection (i.e., avian flu) or presence of high levels of pesticides. The possibility of adopting egg yolk as a source material to produce polyhydroxyalkanoate (PHA) biopolymer was examined in this study. Cupriavidus necator Re2133/pCB81 was used for the production of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) or poly(3HHx), a polymer that would normally require long-chain fatty acids as carbon feedstocks for the incorporation of 3HHx monomers. The optimal medium contained 5% egg yolk oil and ammonium nitrate as a nitrogen source, with a carbon/nitrogen (C/N) ratio of 20. Time course monitoring using the optimized medium was conducted for 5 days. Biomass production was 13.1 g/l, with 43.7% co-polymer content. Comparison with other studies using plant oils and the current study using egg yolk oil revealed similar polymer yields. Thus, discarded egg yolks could be a potential source of PHA.

• 한국환경복원기술학회지
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• 제22권2호
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• pp.1-12
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• 2019

Open space planners and designers should consider scientific and quantified functions of trees when they have to locate where to plant the tree. However, until now, most planners and designers could not consider them because of lack of tool for considering scientific and quantitative tree functions. This study introduces a tree location supporting tool which focuses on the multi-objective including scientific function using ACO (Ant colony optimization). We choose shading effect (scientific function), shielding, and openness as objectives for test application. The results show that when the user give a high weight to a particular objective, they can obtain the optimal results with high value of that objective. When we allocate higher weight for the shading effect, the tree plans provide larger shadow value. Even when compared with current tree plan, the study result has a larger shading effect plan. This result will reduce incident radiation to the ground and make thermal friendly open space in the summer. If planners and designers utilize this tool and control the objectives, they would get diverse optimal tree plans and it will allow them to make use of the many environmental benefits from trees.