• Journal of Digital Convergence
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• v.11 no.10
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• pp.537-547
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• 2013

A recent rapid change in society drives the colleges and universities into the unlimited competition for satisfying users' demand. The introduction of customized educational system is one of the survival strategies of university that reflected this characteristic. The result of a research on the customized curriculum of the dental hygiene study shows that the managers of dental hospitals and clinics think that the dental assistance field is dental hygienist's major task. On the other hand, though the dental hygienists think that the oral health education is the main task, they just comply with the intention of managers of the dental hospitals and clinics in reality. Hence, the reinforcement of the practicum in the industry field is required to meet the demand from the industry. And there is also a need to offer an opportunity of self-realization through work life by allowing dental hygienists to have stable status within dental hospitals and clinics with enhanced education and training on preventive dental treatment and oral health.

• The Mathematical Education
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• v.29 no.2
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• pp.117-139
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• 1990

본 연구는 국민 학교 산수 익힘책의 효율적인 활용 방안을 찾는 데 목적이 있으며, 이를 위하여 선행 및 문헌 연구와 "산수 익힘책"의 활용 실태를 조사하였다. 본 연구에서 수행한 연구 내용을 요약하면 다음과 같다. 가. 이론적 배경 연구 및 산수 익힘책의 개발 방향 문헌과 선행 연구를 통하여 보조 교과서의 특성에 따를 활용 방안 및 보조 교과서의 학습 내용에 따른 틀용 방안을 이론적으로 고찰하였고, "산수 익힘책"의 개발 방향 및 그 특색에 대하여 조사하였다. 나. 활용 실태 조사 사용하고 있는 "산수 익힘책"의 활용 실태를 파악하여, 활용 방안을 마련하는 기선 자료를 수집하기 위함이며, 조사 내용은 다음과 같다. 1) 조사 내용 (1) 교사의 측면에서 ㆍ "산수 익힘책"의 도움 정도 ㆍ "산수 익힘책"의 수업 시간에의 활응 목적, 방법 ㆍ "산수 익힘책"의 활용시 편리성 ㆍ 흥미성 ㆍ 활용 시기 ㆍ 가정 학습으로 부과시의 목적 ㆍ 문제 풀이 결과 확인자 ㆍ 교육 과정 반영 정도 ㆍ 개선점 (2) 학부모의 측면에서 ㆍ"산수 익힘책"의 활용 목적 ㆍ "산수 익힘책"의 활용 정도 ㆍ "산수 익힘책"의 도움 정도 ㆍ 학부모의 역할 정도 ㆍ "산수 익힘책"에 대한 학생의 흥미도 ㆍ "산수 익힘책"의 개선점 2) 조사 도구 조사 내용에 대하여 국민 학교 1, 2, 3학년 담임 교사용과 학부모용의 질문지를 각각 작성하여 전문가의 검토를 거쳐 "산수 익힘책"의 활용에 관한 실태 조사지를 개발하였다. 이 때, 각 학년별 교사용끼리, 학부모용끼리의 질문지의 문항은 서로 같게 하였으며 교사용은 25문항, 학부모용은 16문항으로 구성하였다. 다. 활용 방안 구안 "산수 익힘책"의 개발 방향과 "산수 익힘책"의 활용 실태 조사에 기초하여 산수 익힘책의 효율적인 활용 방법을 수업 절차에 따라 구분하였다. 수업 절차는 여러 가지 형태가 있지만 본 연구에서는 KEDI의 수업 과정 일반 모형에 준하여 산수 익힘책의 활용 방법을 구안하였다. 라. 활용 방안을 구안하였다. 1) 적용 목적 구안된 "산수 익힘책"의 활용 방안의 현장 적용은 활용 방안의 질을 높이려는 대에 중요한 목적이 있다. 적용 결과는 현장 적용 가능성을 판단할 수 있는 입증 자료가 될 수 있을 뿐만 아니라, "산수 익힘책" 관심을 가지고 있는 교사나 연구자에게 학력 향상 가능성에 대한 경험적 근거를 제시함으로써 중요한 시사를 줄 수 있을 것이다. 2) 적용 결과 전체적으로 적응 수업이 실시된 지 3주후 부터는 활용 방안에 익숙해져 "산수 익힘책"을 효과적으로 활용할 수 있었다. 그 뿐만 아니라 자율학습시 학생들 스스로가 상호 확인을 하고, 서로 결손이 있는 부분을 가르쳐 주는 협동 학습이 이루어졌다.

• Journal of the Korean Geographical Society
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• v.50 no.6
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• pp.659-675
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• 2015

This study explores the status, characteristics and problems of urban-to-rural migration policy in Gyeongbuk Province, and suggests some improvements based on this analysis. Gyeongbuk Province enacted local ordinances related to urban-to-rural migration for the first time in Korea, and has expanded the area of its own projects in addition to the central government's support projects. Consequently, the degree of satisfaction for the support projects in Gyeongbuk Province is higher than in other provinces. Problems of the support projects for urban-to-rural migration are the lack of role sharing between central and lower level local government, and the lack of connectivity among the relevant departments; the non-reflection of regional characteristics and attributes of urban-to-rural migrants (household); and the insufficient satisfaction of policy demands by non-agricultural urban-to-rural migrants. Improvements for these problems include establishing governance that involves urban-to-rural migrants in addition to the existing policy actors, and institutionalizing the project to properly embed this governance in the region. In addition to economic and physical support, diverse programs based on the adaptive cycle, 'non-agricultural rural jobs' for nonagricultural urban-to-rural migrants, and support programs for professional competency enhancement contributing to rural communities should be developed.

• Korean Journal of Agricultural and Forest Meteorology
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• v.19 no.4
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• pp.246-251
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• 2017

Crop models have been used to predict a heading date for efficient management of fertilizer application. Recently, the ORYZA (v3) model was developed to improve the ORYZA2000 model, which has been used for simulation of rice growth in Korea. Still, little effort has been made to assess applicability of the ORYZA (v3) model to rice farms in Korea. The objective of this study was to evaluate reliability of heading dates predicted using the the ORYZA (v3) model, which would indicate applicability of the model to a decision support system for fertilizer application. Field experiments were conducted from 2015-2016 at the Rural Development Administration (RDA) to obtain rice phenology data. Shindongjin cultivar which is mid-late maturity type was grown under a conventional fertilizer management, e.g., application of fertilizer at the rate of 11 Kg N/10a. Another set of heading dates was obtained from annual reports at experiment farms operated by the National Institute of Crop Science and Agricultural Technology Centers in each province. The input files for the ORYZA (v3) model were prepared using weather and soil data collected from the Korean Meteorology Administration (KMA) and the Korean Soil Information System, respectively. Input parameters for crop management, e.g., transplanting date and planting density, were set to represent management used for the field experiment. The ORYZA (v3) model predicted heading date within 1 day for two seasons. The crop model also had a relatively small error in prediction of heading date for three ecotypes of rice cultivars at experiment farms where weather input data were obtained from a near-by weather station. Those results suggested that the ORYZA (v3) model would be useful for development of a decision support system for fertilizer application when reliable input data for weather variables become available.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.9
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• pp.6345-6359
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• 2015

This study aims to clarify the concept of 'Low-carbon urban regeneration', to extract planning elements according to it, and to establish the planning system. In order to extract the elements, matrix analysis was conducted between planning elements of urban regeneration and Low-carbon cities, and the focus group interview(FGI) was used. Derived elements from this process were restructured for the new planning system. In addition, in-depth case analysis was performed to verify the suitability and effects of planning elements and system. The result showed that planning element of Low-carbon urban regeneration can be sorted in 37 elements in 5 categories. In-depth analysis indicated that established planning elements were importantly dealt in cases and played a significant role in urban regeneration and carbon reduction. Also, it showed that those elements had a significant relationship with adaptation and mitigation, the two responding strategies to the climate change. Elements highly contributing to urban regeneration were Urban Structure, Transportation, Policy while elements affecting carbon reduction were Transportation, Green & Blue space, Energy & Material field.

• Journal of Life Science
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• v.23 no.2
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• pp.324-331
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• 2013

The addition and removal of N-acetylglucosamine (GlcNAc) molecules on serine or threonine residues of a protein is called O-GlcNAcylation. This post-translational modification occurs on both cytoplasmic and nuclear protein, and is fast and reversible as comparable to phosphorylation. In contrast to the phospho-signaling cycles, this emerging moon-lightening signaling is cycled by only two enzymes, O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA). The simple machinery is a good evolutionary adaptation of a cell for quick accommodation to continuously fluctuating intra- and extracellular microenvironments. Rather than "switching" on or off a specific proteins - this would be done by phosphorylation where numerous specific kinases and phosphatases are involved - O-GlcNAcylation would play a "rheostat" which would be much more delicately increase or decrease the efficacy of signal transductions in response to cellular nutrient and stress conditions. Interestingly, recent evidence indicates that O-GlcNAc is further modified by phosphorylation. The O-GlcNAc-P will upgrade the modulation efficiency of cellular processes to continuous 'analogue' level. So far, only one protein AP180 was reported to have O-GlcNAc-P on Thr310. But, proteomic data from our laboratory indicate that there are multiple O-GlcNAc-P proteins, constituting "O-GlcNAc-P'om". This will focus on the possibility of existence of "O-GlcNAc-P'om".

• Korean Journal of Food Science and Technology
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• v.49 no.4
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• pp.453-458
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• 2017

This study compared the immuno-modulatory effects of ethanol extracts (A. muricata L. ethanol extracts, ALE) and crude polysaccharide fraction (A. muricata L. crude polysaccharide fraction, ALP) from Annona muricata L. in macrophages. Immuno-modulatory activity was determined by assessing cell viability, nitric oxide (NO) production, inducible NO synthase (iNOS) expression and cytokine production in RAW 264.7 a macrophage cell line. Both ALE and ALP treatment did not affect cytotoxicity, and ALP treatment significantly increased NO production. Additionally, cytokine production [tumor necrosis factor ($TNF-{\alpha}$; $2909.04{\pm}4.1pg/mL$), interleukin (IL)-6; $662.84{\pm}5.3pg/mL$, and $IL-1{\beta}$; $852.37{\pm}2.2pg/mL$), was highly increased in the ALP ($250{\mu}g/mL$) treated group compared to the ALE ($250{\mu}g/mL$) treated group ($TNF-{\alpha}$; $1564.50{\pm}6.1pg/mL$, IL-6; $517.24{\pm}4.1pg/mL$ and $IL-1{\beta}$; $237.23{\pm}1.8pg/mL$). Moreover, ALP treatment considerably increased the expression of mitogen-activated protein kinase (MAPKs) and nuclear $factor-{\kappa}B$ ($NF-{\kappa}B$) in the macrophages. Therefore, ALP can induce macrophage activation through MAPK and $NF-{\kappa}B$ signaling and this can be a potential candidate for development of nutraceuticals.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.3
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• pp.445-451
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• 2016

This study demonstrated the immunological effects of methanol extracts from Doenjang added with wild plants (Pteridium aquilinum and Aster scaber) on bone-marrow derived macrophages and mouse splenocytes. Doenjang (DJ) and wild plant added Doenjang (WPDJ) extracts were treated to bone-marrow derived macrophages (BMDM) and splenocytes, and cell proliferation and cytokine production were measured. Cell proliferation of BMDM and splenocytes was more highly elevated in the WPDJ-treated group compared to the DJ-treated group. Cytokine [tumor necrosis factor (TNF)-${\alpha}$, interleukin (IL)-6, IL-$1{\beta}$, IL-10, and IL-12] production in BMDM also significantly increased in the WPDJ-treated group. Similarly, in the case of cytokine production in splenocytes, WPDJ treatment highly increased production of Th 1 type cytokines [interferon (IFN)-${\gamma}$ and IL-2] but did not affect production of Th 2 type cytokines (IL-4). These results suggest that wild plants could improve the immunomodulatory activity of Doenjang and may be effective for the development Doenjang.

• 교육공학연구
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• v.33 no.4
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• pp.1001-1024
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• 2017

Flipped classroom has used widely in university in that its unique structure can facilitate learners' higher-thinking skills and promote competencies. Learners are expected to extend knowledge through performing online and offline, but they have difficulty in understanding their roles and specific behaviors to achieve the learning goals in the flipped learning. Therefore, a guidance for students has been required to support learners' mastery learning. The purpose of this study is to identify successful learners' characteristics in terms of "competency". For this, three-phased competency modeling was employed. In Phase I, Behavioral Event Interviews were conducted with eight learners of the flipped classroom. In Phase II for identifying competencies and developing a competency model, the data was coded, followed by testing reliability of the coding. Based on the meaning codes, competencies and behavioral indexes were developed. The final competencies consist of learning orientation, learning management, feedback seeking, peer interaction, and knowledge extension. In Phase III, validation of the competency model was conducted by explanatory factor analysis. As last, competencies were aligned by the two-phase of the flipped classroom. The finding will be used as the guidance for the learners and instructors in the flipped classroom.

• Journal of Korea Water Resources Association
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• v.52 no.6
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• pp.429-440
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• 2019

The numbers of multi-year droughts due to climate change are increasing worldwide. Boryeong Dam, located in Chungcheongnam-do, South Korea, was also affected by a 4-year drought from 2014 to 2017. Since traditional unilateral decision making processes to alleviate drought damage have, until now, resulted in conflicts between many of the involved groups, the need for active participation from both stakeholders and policymakers is greater than before. This study introduced Shared Vision Planning, a collaborative decision making process that involves participation from various groups of stakeholders, by organizing Water Policy Council for Climate Change Adaptation in Chungcheongnam-do. A Shared Vision Planning Model was then developed with a system dynamics software by working together with relevant stakeholders to actively reflect their requests through three council meetings. Multiple simulations that included various future climate change scenarios were conducted, and future drought vulnerability analysis results of Boryeong Dam and districts, in terms of frequency, length, and magnitude, were arrived at. It was concluded that Boryeong Dam was more vulnerable to future droughts than the eight districts. While the total water deficit in the eight districts was not so significant, their water deficit in terms of spatial discordance was proved to be more problematic. In the future, possible alternatives to the model will be implemented so that stakeholders can use it to agree on a policy for possible conflict resolutions.