• Proceedings of the Korea Association of Information Systems Conference
• /
• 2003.05a
• /
• pp.241-251
• /
• 2003

The rapidly changing environment have forced organizations to improve systems thinking capability to coordinate diverse activities across cross-functional business areas necessarily involving group decision-making processes. Although many approaches have been introduced to enable the collaborative processes of group decision-making, they often lack features supporting the dynamic complexity issues. The study proposes system dynamics modeling based on simulation techniques to improve systems thinking capability in group decision-making context.

• Journal of the Korean Professional Engineers Association
• /
• v.43 no.3
• /
• pp.34-39
• /
• 2010

Which way should Sejong city focus, the original plan, "The Multipurpose Central City for Administration", or the modified one, "The Central City for Education and Science"? Which way will satisfy both the country and Choongchung region in the future of Sejong city? Let's discuss if the modified plan can be the solution for the inefficiencies and lack of self-sufficiency of the original plan.

• Journal of the Korean Professional Engineers Association
• /
• v.46 no.2
• /
• pp.24-27
• /
• 2013

Following the mobile era, the technical architecture and the software development environment of mobile system plat form has been explained, and the future development direction has been summarized in the 5 ways. Closed operating system can be developed in the certain period. However, because of the lack of maintenance of the development infrastructure, it has been met its limit. Android, which is open source mobile, will be greatly spread, As it is the age SNS(Social Network System), I will introduce cases apply to formal community which used Twitter, Facebook, and so on.

• Journal of the Korean Professional Engineers Association
• /
• v.44 no.2
• /
• pp.29-33
• /
• 2011

In recent years, maximum electric power demand has been increasing steadily. But, Electric Power Supply & Demand problem is occurring due to lack of electric power reserve ratio caused by electric power peak. For this reason, I investigated the current status of the Electric Power Supply & Demand and established Electric Power Supply & Demand and established Electric Power Supply & Demand measures. I will expect that this paper will be contributed balanced and stable Electric Power Supply & Demand management.

• Journal of the Korean Professional Engineers Association
• /
• v.42 no.5
• /
• pp.46-49
• /
• 2009

Many companies are looking for going into the LED Industry as LED has the brightest prospects in the future compare to any other industries. But many companies are lack of comprehension of market for successful entry decision. It is highly recommended to setup the effective strategy by categorizing the LED application markets and selecting the target market. In this paper LED Lighting industry is mainly explained among the many LED markets.

• The Journal of the Korean dental association
• /
• v.12 no.8
• /
• pp.573-576
• /
• 1974

This was a case of the patient, a 24-year-old Korea Army soldier, presented a marked mandibular prognathism and left displacement. This patient was obtained a good satisfactory occlusal improvement by a bilateral oblique osteotomy in the rami of the mandible.

• Asian Pacific Journal of Cancer Prevention
• /
• v.15 no.2
• /
• pp.957-961
• /
• 2014

Purpose: With regard to the protective effect of vitamin D against colorectal cancer (CRC), we evaluated genetic variants that might influence vitamin D metabolism: vitamin D receptor (VDR), vitamin D binding protein (GC), vitamin D 25-hydroxylase (CYP2R1), and vitamin D 25-hydroxy 1-alpha hydroxylase (CYP27B1). Materials and Methods: A total of 657 subjects, including 303 cases with CRC and 354 controls were enrolled in this case-control study. All 657 were genotyped for the four gene variants using PCR-RFLP methods. Results: In this study, no significant difference was observed for VDR (rs2238136), GC (rs4588), CYP2R1 (rs12794714), and CYP27B1 (rs3782130) gene variants in either genotype or allele frequencies between the cases with CRC and the controls and this lack of difference remained even after adjustment for age, BMI, sex, smoking status, NSAID use, and family history of CRC. Furthermore, no evidence for effect modification of the variants and CRC by BMI, sex, or tumor site was observed. Conclusions: Our findings do not support a role for VDR, GC, and CYP27B1 genes in CRC risk in our Iranian population. Another interesting finding, which to our knowledge has not been reported previously, was the lack of association with the CYP2R1 gene polymorphism. Nonetheless, our findings require confirmation and possible roles of vitamin D metabolism-related genes in carcinogenesis need to be further investigated.

• Journal of The Korean Association For Science Education
• /
• v.32 no.5
• /
• pp.841-854
• /
• 2012

The purpose of this study is to investigate the teaching methods of prediction, inference, and hypothesis. The major data source was gathered by in-depth interview of science teachers (about 50-80 minutes for each interview). The interviews were conducted using semi-structured interview protocol, which consisted of three major parts: (1) Teacher's definition of prediction, inferences, hypothesis, (2) Teaching methods of prediction, inferences, and hypothesis and (3)Reasons of teacher's inaccurate perceptions of prediction, inference, and hypothesis. All the interviews were audio-taped and transcribed. Topics in the questions were categorized. The results were as follows: Teachers recognized the importance of prediction, inferences, and hypothesis. But they didn't have an accurate conception and they have great difficulty in classifying and explaining the prediction, inferences, and hypothesis. To find out the teaching methods, researcher investigated the inquiry activities, teaching times, usage of terms, teachers' questions, and teaching difficulties. Reasons for having difficulty were lack of teaching competency, difficulties from the students, and problems in the present curriculum. Finally, we discovered that the reasons for teacher's inaccurate perceptions of prediction, inference, and hypothesis were two factors. One is internal factors, which include the lack of scientific inquiry process skills, burdens of science subject and lack of science education knowledge. The other is external factors, which include education system for evaluations and lack of teacher education. In conclusion, this study suggested establishing more elementary teacher education programs that include strengthened concepts of inquiry process skills and teaching methods.

• Journal of The Korean Association For Science Education
• /
• v.39 no.1
• /
• pp.143-160
• /
• 2019

This study investigated 15 science teachers' perception and practice on free semester and science assessment. We analyzed frequencies of teacher choice for closed questions and used constant comparative method for teacher description and individual interview. Most teachers determined a low ranking for changes in assessment methods and mentioned a lack of objectivity on free semester assessment, unsystematic free semester assessment, and more importance on student activity and interest in science instruction. Most teachers understood process-based assessment as a direction of free semester assessment and teachers mentioned positive aspects for students or teacher difficulties dependent on their perception on process-based assessment. Half of the teachers failed to implement student self-assessment and student peer-assessment due to subjectivity and complexity. Some teachers did not provide feedbacks to students due to a lack of time and did not use certain assessment methods due to a lack of knowledge of the assessment. Teachers who did not have an experience of discussions in a teacher learning community mentioned reasons regarding a small number of the same grade teachers and inactive attitude of colleagues. Teachers who did not participate in professional development programs mentioned a lack of teacher understanding of free semester, participation of the teacher in charge, and teacher choice of participation as reasons.

• Journal of Society of Preventive Korean Medicine
• /
• v.23 no.3
• /
• pp.31-39
• /
• 2019

Objectives : The study aimed to investigate the satisfaction, reasons for the progress, and the advantages of the school doctor of Korean Medicine (SDKM) program in the applied Korean Medicine doctors. Methods : The school doctor of Korean Medicine (SDKM) program has been conducted in 21 schools in Seoul since March 2018. The program was varied by school, included the introduction of Korean Medicine, sex education, and anti-smoking/drinking session. This survey was conducted as a paper-based questionnaire after the SDKM. Results : The SDKM results evaluation was better in the Korean doctors who applied for SDKM. The factors for negative progression of SDKM were 'Bad cooperation of the schools', 'Lack of personal capabilities', and 'Lack of motivation'. The factors for the positive progression of SDKM were 'Good cooperation of the schools', 'Support of Seoul Korean Medicine Association'. The question of prerequisites for activation SDKM Program included 'Active cooperation of school', 'Expand teaching materials and programs', 'Support of Seoul Korean Medicine Association'. Conclusions : In order to activate the SDKM, it is necessary to cooperate with the schools, to support of Seoul Korean Medicine Association, and to expand the education program.