• The KIPS Transactions:PartD
• /
• v.9D no.1
• /
• pp.135-144
• /
• 2002

Multimedia systems design generally requires a collaborative effort from a group of designers with a variety of backgrounds and tasks, such as content experts, instructional designers, media specialists, users, and so forth. The fact that the designers have totally different backgrounds and tasks may hinder their collaboration. This research develops a collaborative design tool for multimedia systems design, called the Designer's Cafe, with which multimedia designers can share their design knowledge on the Web freely. Designer's Cafe consists of three intelligent agents that are designed for supporting collaboration activities of multimedia designers. The intelligent agents are implemented by using JAVA SCRIPT and COLD FUSION. By using the tool, designers create, revise, and share their knowledge/ideas in very structured ways. The structured design process might enhance the collaboration activities of designers while designing a multimedia system within a virtual working space.

• Proceedings of the Korean Society of Applied Pharmacology
• /
• 2001.04a
• /
• pp.103-112
• /
• 2001

Bone homeostasis is maintained by a balance between activities of osteoblasts(bone forming cells) and osteoclasts (bone resorbing cells). The activities of these cells are closely regulated by multiple factors including hormones and cytokines. The cessation of estrogen at menopause disrupts the balanced regulation and is the main cause of osteoporosis in postmenopausal women. Recent molecular biological studies led to a discovery of tumor necrosis factor(TNF) and TNF receptor families genes that play critical roles in the regulation of osteoclast formation and function. RANKL (receptor activator of nuclear factor kappa B ligand; also called ODF, TRANCE, and OPGL) expressed on cells supporting osteoclast is essential for osteoclast differentiation, activation, and survival. RANK, the counter-receptor for RANKL, is expressed on progenitor and mature osteoclasts. The interaction between RANKL and RANK is requlated by a soluble decoy receptor OPG (osteoprotegerin). Gene knock out studies of these molecules showed profound effects on bone. These results prompted development of new strategies for treatment of bone diseases. Inhibition of osteoclast activity by blocking the RANKL-RANK interaction using OPG is being attempted. Research on the signaling pathways of RANK is also actively carried out. Screening natural products that inhibit the RANKL-RANK interaction or the activity of obteoclasts would be another effective means to a new drug target for bone resorbing diseases.

• International Journal of Computer Science & Network Security
• /
• v.23 no.8
• /
• pp.146-158
• /
• 2023

Smart City is gaining attention with the advancement of Information and Communication Technology (ICT). ICT provides the basis for smart city foundation; enables us to interconnect all the actors of a smart city by supporting the provision of seamless ubiquitous services and Internet of Things. On the other hand, Crowdsourcing has the ability to enable citizens to participate in social and economic development of the city and share their contribution and knowledge while increasing their socio-economic welfare. This paper proposed a hybrid model which is a compound of human computation, machine computation and citizen crowds. This proposed hybrid model uses knowledge-based crowdsourcing that captures collaborative and collective intelligence from the citizen crowds to form democratic knowledge space, which provision solutions in areas of civic innovations. This paper also proposed knowledge-based crowdsourcing framework which manages knowledge activities in the form of human computation tasks and eliminates the complexity of human computation task creation, execution, refinement, quality control and manage knowledge space. The knowledge activities in the form of human computation tasks provide support to existing crowdsourcing system to align their task execution order optimally.

• Educational Technology International
• /
• v.14 no.1
• /
• pp.55-74
• /
• 2013

The diversity of students is getting increased in the contemporary classroom. To deal with the diversity, differentiated instruction (DI) should be considered as a way of providing alternative approaches to content, process and product according to the students' readiness, interest, and learning needs. Teachers have problems and difficulties in supporting different student's needs. In fact, teachers need proven tools including framework, guidelines or computing systems to help to practice DI in real context. According to the activity theory, tools influence on how people act and think and even their social practice, playing a crucial role in mediating the activities with people. In DI practice, there are also some studies about physical and abstract tools, but they have been not widely utilized by teachers in real schools. It means that more innovative tool to promote DI might be required. Therefore, to design a better tool to mediate the DI activities with teacher, case studies were conducted. In order to elicit the design implications, two physical and two abstract tools for DI practice were analyzed as case studies. Through the analysis of the case studies, eight design implications better to facilitate DI practice were suggested. This study has implications in suggesting design guidelines for teachers' tools to facilitate their DI practice by analyzing case studies in DI practices for an innovative tool in the educational practice.

• Korea Trade Review
• /
• v.45 no.1
• /
• pp.65-82
• /
• 2020

Due to their participation in commercial activities between countries, many small and medium-sized trading companies are more of a born-global venture. The entrepreneurial intention is one of the key drivers impacting the formation of this born-global venture. In recent the importance of venture founding has been emphasized on a global scale. How to revitalize venture founding is becoming a nation-wide challenge in emerging economies as well as advanced countries. In particular, under the banner of 'Many people founding venture, Many people creating innovation', a new-coined word 'Choangker', an innovative founder of a venture, appeared in China. Existing studies have focused on entrepreneurial intention as a key driver that could affect whether a latent entrepreneur would actually found a venture or not. In this paper, we wanted to investigate what factors influence the entrepreneurial intention of the Chinese university students. Results of statistical analysis show that self-efficacy, personal experiences, supporting activities for venture founding, and social networks have positive effects on entrepreneurial intention of the Chinese university students. These results are similar to the claims of previous studies on the factors that influence the entrepreneurial intention of university students. In the future, researches on the entrepreneurial intention of the Chinese university students should be carried out to reflect the institutional characteristics at the national level.

• Journal of The Korean Association For Science Education
• /
• v.40 no.5
• /
• pp.451-462
• /
• 2020

According to the online learning environment, learning activities using mobile technology have emerged as a major concern. The features of mobile technology show potential supporting the emergence of learners' agencies in science education. In this study, 22 research literature on mobile activities in science teaching and learning published in Korea from 2011 to April 2020 were selected. First, the framework of Suarez et al. (2018) was revised and the types of mobile activities were categorized and investigated. Second, the emergence of agencies was examined in the context of science teaching and learning. And also, the relevance of mobile activity types ('Access to content', 'Data collection', 'Peer-to-peer communication', 'Contextual support') to support learners' agency dimension ('goals', 'content', 'action', 'strategy', 'reflection', 'monitoring') was analyzed. The first analysis show that science teaching and learning through mobile activities are changing from traditional to student-centered. Through these activities, students become more involved in learning and get the opportunity to become agents of learning. As a result of the second analysis, it has been confirmed that the emergence of learners' agencies has been supported and strengthened through mobile activities. Whereas, it needs to look upon the relationship between learners' agency and mobile activities in the overall context of science class. This consideration led to implications for the use of mobile technology in future science education and the transition to student-centered education.

• Korean Journal of Social Welfare
• /
• v.37
• /
• pp.407-428
• /
• 1999

Corporates' participation in the social welfare activities in Korea was analyzed through literature reviews and empirical survey. Literature reviews on the previous studies were implemented to identify the corporates' motivations, methods, types and funding sources of social welfare activities. The empirical survey results show that 37% (83 firms) of respondents among 222 companies has participated in direct giving to the social welfare activities by various methods and types. The bigger amount of last fiscal year's sales, the more amount of gifts to social welfare activities. The average amount of gifts was \ one billion forty-six million per company in the monetary tenn which is 0.06% of the last FY's average sales of respondents. The most frequently implemented program of the corporates' social welfare activities was 'scholarship to unprivileged adolescent', while the program which the largest amount of gifts were donated was 'support for the social welfare agencies'. For the participation methods, most corporates implement social welfare program directly, and the rest of the companies take the methods of supporting the existing social welfare agencies and institutions. The cash benefit was salient for the modes of gift transfer. Funding sources for the gifts were various such as certain portion of the amount of sales, pretax-profits, or posttax profits, and even rare, independently established funds for the social welfare activities. Among them, a certain portion of the last FY's amount of sales was the dominant source of corporates' social welfare activities.

• Korean Journal of Child Education & Care
• /
• v.17 no.3
• /
• pp.111-151
• /
• 2017

The purpose of this study is to investigate the perception and actual condition of early childhood teachers about the activities of cooperative art in early childhood education institutions. The subjects of the study were 280 teachers of early childhood education institutions in Y city. The research method was a questionnaire survey on the perception and actual condition of the cooperative art activities. For the research problems, frequency, percentage, and average were calculated by using descriptive statistics, and t - test, F - test, and ${\chi}^2$ - test were conducted to examine the differences according to background variables of early childhood teachers. In conclusion, this study showed that the need for cooperative art activities of early childhood education institutions was highly perceived, and there were significant differences according to the background variables of teachers in educational goals, contents and method. There were significant differences according to the teachers' background variables in the actual cooperative art activities in terms of frequency, method, time, evaluation method, teacher training and support. Based on the results of this study, various supporting methods such as activities plan and method, teacher education and training appropriate for the cooperative art activity program and the presentation of young children are sought so that more desirable and efficient cooperative art activities can be operated in the field of early childhood education suggesting that it should be done.

• Korean Security Journal
• /
• no.49
• /
• pp.97-129
• /
• 2016

This study is empirically intended to look into the effects of security martial arts leader's leadership behaviors on their role perception and coaching confidence, and the mediating effects of their role perception in the relationship between their leadership behaviors and their coaching confidence. To achieve this, a survey was carried out to incumbent security martial arts leaders. The questionnaires were used for data analysis. The correlation analysis prior to a test of research hypothesis showed that there was a significant positive relationship between all potential factors(< p.01). Especially, there was a high relationship between psychological coaching confidence, human relational coaching confidence, exercise coaching, exercise prescription, and volunteer activities. The detailed results of hypothesis verification were as follows: First, hypothesis 1 showed that leadership behaviors had a significant positive effect on role perception, supporting hypothesis 1. Second, hypothesis 2 showed that role perception had a significant positive effect on coaching confidence, supporting hypothesis 2. Third, hypothesis 3 showed that leadership behaviors had a significant positive effect on coaching confidence, supporting hypothesis 3. Fourth, hypothesis 4 showed that role perception was partially mediated in the effects of leadership behaviors on coaching confidence, supporting hypothesis 4. The findings suggest that the effects of security martial arts leader's leadership behaviors on their coaching confidence can be maximized in combination with their role perception.

• Korean Journal of Construction Engineering and Management
• /
• v.10 no.6
• /
• pp.13-27
• /
• 2009

Construction companies are trying to apply process management to their business to improve efficiency in business circumstance of high competition and globalization. Since 1990s, construction firms adopted process management to improve internal and external business structure based on process. It however has a few improvement functions. In addition, business support systems for business process efficiency improvement were developed, but separation between business process and IT system occurred because it focused on function-based individual construction and data input/output. To solve this problem, this study proposed business process and IT integration model for supporting user to use business information and system based on visualized business process and improving use of previous business support system. Business efficiency is expected to be improved with this model which based on integration required business condition(stakeholder, business data, functions of business supporting system). This study developved process model, architecture, and BPA of whole construction management business. According to BPA, it analyzed business process stakeholder, detail activities, and input-output data. And also it examined 12 main business supporting system of Korean construction firms. Based on analyzed data, this study developed business process supporting integration model based on business process through PDCA and CRUD analysis.