• 한국초등과학교육학회지:초등과학교육
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• 제37권4호
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• pp.416-429
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• 2018

In social constructivist teaching, knowledge construction is achieved through learners' collective social interaction. Vygotsky argued that this process is mediated with language use, and the development of higher order thinking is realized through the transition from inter-personal psychological functions to intra-personal psychological functions. In so doing scientific concepts are internalized to learners. This study examined the third grade elementary students' inter/intra-personal psychological functions and their internalization processes during social constructivist teaching plan about strata and fossils. The lessons were designed along with Wells' dialogic inquiry and Leach and Scott's social constructivist teaching-learning sequences. Results showed that a teacher's utterances of talking with questioning to switch attention, creating cognitive disequilibrium, and expanding the width of students' opinions could make effective inter-personal psychological function. In addition, a learner's inner speech expressed into social discourse through talking about personal experiences, comparing epistemic idea with visual representation, or applying to different situation showed his/her intra-personal psychological function. Some cases of learners' internalization through language use could be at the stage of knowledge building and understanding of the spiral of knowing, but not all. Thus it is argued that a teacher's deeper insight into Vygotskian social constructivist teaching can make elementary science classroom teaching more effective in their inter/intra-psychological functions.

• International journal of advanced smart convergence
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• 제8권1호
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• pp.58-64
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• 2019

In recent years, small mobile devices called personal mobility or smart mobility have attracted attention. Personal mobility refers to electric-driven personal transportation that can travel at close range and medium distance, including small electric vehicles, electric bicycles, electric motorcycles and electric scooters. Most of the electric scooters used in Korea are mainly imported from China. This is due to the fact that the price competitiveness of major components of electric scooters is owned in China. At this point, the domestic research direction is preferable for the composition and design of the electric scooter body rather than cost reduction for the components. In this study, we propose a new model of portable folding structure that is easy to use for electric scooters, which are personal vehicles using electric energy. We also made a prototype for practical use.

• 정보보호학회논문지
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• 제25권3호
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• pp.691-701
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• 2015

최근 개인정보를 활용하는 서비스가 증가함에 따라 공공기관들의 업무는 개인정보에 대한 의존성이 높아지고 있다. 개인정보의 활용이 불가피한 환경에서 안전한 개인정보 활용을 위해 다양한 정책과 제도를 마련하여 운영하고 있으나 개인정보 침해사고와 그 규모는 지속적으로 증가하고 있는 실정이다. 이에 우리나라는 2008년부터 공공기관의 개인정보 보호법 준수 여부와 관리수준을 진단하고 미흡한 사항에 대해 개선활동을 수행하기 위한 개인정보보호 관리수준 진단을 시행하고 있다. 그러나 관리수준 진단 결과가 높은 점수임에도 불구하고 끊이지 않는 침해사고로 인하여 진단 결과와 실제 관리수준에 대해 실효성 측면에서의 문제가 제기되고 있다. 따라서 본 연구에서는 공공기관들의 개인정보보호 활동과 기반마련에 대한 효율성을 DEA 모형으로 분석하고, 도출된 효율성을 개인정보보호 관리수준 진단 결과에 반영하여 진단 결과의 효과성과 효율성을 높이기 위한 새로운 모델을 제안하고자 한다.

• 지식경영연구
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• 제18권4호
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• pp.237-260
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• 2017

Recently, with the proliferation of smart phones and mobile devices and the increase in the speed of mobile Internet, IT services are increasingly used in smart phones and mobile devices in a different way from the past. That is, a cloud service that downloads and uses data stored in the server in real time is expanding, and as a result, the security due to the continuous Internet connection of the user becomes a problem. In this study, we analyzed the relationship between factors affecting the continuous use of personal cloud service by using technology acceptance model. In addition to the technology acceptance model, confidentiality, privacy, accessibility, innovation, and self-efficacy were extracted from the existing research with emphasis on the characteristics of the cloud service and security factors. Moreover, the difference of intention to use among genders was verified through structural equation modeling with survey data from 262 personal cloud service users.

• 지식경영연구
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• 제19권2호
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• pp.21-45
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• 2018

With the widespread use of smartphones and the development of information technology, an online service called SNS(social network service) has emerged, and as an increasing number of people began to use SNS, extensive research has been conducted on SNS. SNS is an important factor for adolescents who are developing social skills that help them to adapt to the society, and for adults who are stepping into the society. The present study investigates the effects of information search, self-disclosure, interaction, and playfulness, all of which are motivational factors for SNS use, on flow in SNS, and empirically analyzes the degree of these variables influence according to flow in SNS and individual's personal nature(extrovert, introvert). The analysis results showed that information search, self-disclosure, interaction, and playfulness were positively correlated with flow in SNS, and flow in SNS was positively correlated with social skills. The degree of influence varied depending on the individual's personal nature(extrovert, introvert). These findings may provide important insights for researchers studying SNS, SNS managers, and company officials using SNS.

• Nutrition Research and Practice
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• 제1권1호
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• pp.42-45
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• 2007

Rapid integration of information technology into health care systems has included the use of highly portable systems-in particular, personal digital assistants (PDAs). With their large built-in memories, fast processors, wireless connectivity, multimedia capacity, and large library of applications, PDAs have been widely adopted by physicians and nurses for patient tracking, disease management, medical references and drug information, enhancing quality of health care. Many health-related PDA applications are available to both dietetics professionals and clients. Dietetics professionals can effectively use PDAs for client tracking and support, accessing to hospital database or information, and providing better self-monitoring tools to clients. Internship programs for dietetics professionals should include training in the use of PDAs and their dietetics applications, so that new practitioners can stay abreast of this rapidly evolving technology. Several considerations to keep in mind in selecting a PDA and its applications are discussed.

• Journal of Yeungnam Medical Science
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• 제36권1호
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• pp.20-25
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• 2019

Background: The aim of this study was to evaluate the awareness of occupational hazards and personal protective equipment use among dental hygienists (DHs). Methods: A total of 271 self-administered questionnaires were obtained from 280 DHs working at dental hospitals or clinics in Daegu and Gyeongsangbuk-do, Korea. Results: The occupational hazards included work involving dust (94.1%), volatile substances (86.0%), noise (97.0%), and light-curing units (96.7%). The proportion of dental hygiene tasks that participants perceived as harmful were 42.4%, 51.7%, 9.2%, and 31.4% in the same order as above. The proportion of participants who used dust-proof masks during work involving dust was 1.1%. Those who wore gas-proof masks and gloves for work using volatile substances were 0.7% and 31.2%, respectively. Participants who used goggles for work involving light-curing units were 31.0%. None of the participants used ear plugs for work involving noise. A total of 22.9% of the participants recognized the Material Safety Data Sheet, while 79.7% had never been educated about harmful work environments. Conclusion: When compared to exposure status and perception of occupational hazards, the level of protective equipment use was very low. Extra measures to increase DHs' use of personal protective equipment are necessary.

• 한국비블리아학회지
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• 제35권2호
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• pp.109-133
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• 2024

본 연구는 생성형 인공지능(Generative AI)의 기술적 특성과 도서관 사서의 개인적 특성이 생성형 AI 사용의도에 미치는 영향을 분석하였다. 이를 위해 본 연구는 생성형 AI 사용의도에 영향을 미치는 요인으로 개인화, 상호작용, 맥락 인지를 생성형 AI의 기술적 특성으로 투입하고, 혁신성과 사용빈도를 사서의 개인적 특성으로 투입하였다. 연구대상은 도서관에서 재직 중인 사서 187명이 대상이며, 이 중 165부의 설문지를 수집하여 분석에 사용하였다. 연구결과, 생성형 AI의 기술적 특성은 생성형 AI의 사용의도에 통계적으로 유의미한 영향을 미치는 것으로 나타났고, 사서의 개인적 특성인 혁신성과 생성형 AI 사용빈도 역시 모두 생성형 AI의 사용의도에 유의미한 영향을 미친 것으로 나타났다. 본 연구의 결과는 도서관 사서들이 생성형 AI 사용의도를 높여 도서관 서비스의 질과 만족도를 제고하는 중요한 기초자료로 활용될 것이다.

• 한국IT서비스학회지
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• 제13권2호
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• pp.163-172
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• 2014

Personal information has been stolen continuously and it is also affected from development of the Internet. So the government requires that companies spend more effort for protecting customers' personal information. The OLAP server also should meet this requirement, but it is hard to satisfy for the authority management. The OLAP server must use personal information to extract required information from database. This thesis suggests a model of separating between general information and personal information, so this model can help to minimize the leakage of personal information. The model is implemented and tested as a prototype. This prototype can prove that the new model is better than the original one. This study presents that the authority management on the separation between personal information and general information helps protect the personal information of customers.

• 디지털융복합연구
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• 제12권8호
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• pp.197-209
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• 2014

본 연구는 기술수용모형을 근거로 정보프라이버시 염려와 개인적 혁신성이 스마트폰 기반 쇼핑몰에 대한 인지된 유용성과 사용편이성 및 만족에 미치는 영향을 분석하였다. 스마트폰 기반 쇼핑몰에서 구매경험이 있는 사람들을 대상으로 설문조사를 실시했고, 구조방정식 모형분석 기법을 사용하여 가설검증을 했다. 연구결과는 첫째, 정보 프라이버시 염려는 스마트폰 기반 쇼핑몰에 대한 유용성에는 유의적인 부(-)의 영향을 주지만, 사용편이성에는 유의적인 영향이 없었다. 둘째, 개인적 혁신성은 스마트폰 기반 쇼핑몰의 유용성과 사용편이성에 유의적인 정(+)의 영향을 주었다. 셋째, 스마트폰 기반 쇼핑몰의 사용편이성은 유용성과 만족에 유의적인 정(+)의 영향을 주었다. 마지막으로 스마트폰 기반 쇼핑몰의 유용성은 만족에 유의적인 정(+)의 영향을 주는 것으로 나타났다. 이러한 연구결과는 스마트폰 기반 쇼핑몰의 수용에 있어서 정보프라이버시 염려와 개인적 혁신성의 중요성을 밝혔다.