• 한국보건간호학회지
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• 제36권2호
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• pp.265-281
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• 2022

Purpose: Adolescence is a developmental period characterized by the rapid growth of the musculoskeletal system, which is important for maintaining correct posture. Incorrect posture, lack of exercise, and reduced physical activity can cause spine deformities and affect lifelong health. This study was designed to evaluate the application and effect of a program for improving adolescents' musculoskeletal health. Methods: A quasi-experimental pilot study was conducted with 13 male and 20 female middle and high school students, with an average age of 15.39 years. Their general characteristics and physical measurements were obtained. The program consisted of group exercises (60 minutes, once per week), gait pattern monitoring, and online communication. A paired t-test and Wilcoxon signed-rank test were used to examine the program's effect. Results: Overall posture habits improved, and the total musculoskeletal index decreased; however, these results were not statistically significant. Conclusions: The devised program was effective in improving musculoskeletal imbalance. Therefore, effective programs and health devices should be developed to help adolescents maintain correct posture and encourage and support continuous participation in such programs.

• Journal of Yeungnam Medical Science
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• 제39권4호
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• pp.314-321
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• 2022

Background: In this study, the degree of anxiety, depression, and stress caused by coronavirus disease 2019 (COVID-19) was identified, as well as the need for psychological prevention measures among medical students in the Daegu region that was designated the first special disaster area due to the spread of COVID-19. Methods: The subjects of this study were 318 medical students in Daegu who voluntarily participated in an online test using the Hospital Anxiety and Depression Scale and Impact of Event Scale-Revised Korean version. As a result of the test, risk students received immediate telephone counseling, and the effect of this telephone counseling was analyzed. Results: There were no differences in depression, anxiety, or stress according to gender and grade. As a result of immediate telephone counseling for risk students, significant differences were found in depression, anxiety, and stress, and the counseling was found to be effective. Conclusion: For medical students who are easily exposed to stress, the importance of psychological prevention measures and effectiveness of non-face-to-face counseling should be recognized. In the field of medical education, we must do our best to build a system that can be used immediately at the appropriate time for these programs.

• 한국학교보건학회지
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• 제19권2호
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• pp.89-104
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• 2006

Purpose： This study was to develop and verify the effects of drug misuse and abuse preventive program for middle school students. Methods：This research was a quasi experimental study under the nonequivalent control group with pretest-post test design which tried to protect children from the detrimental effect of drugs and develop a drug abuse prevention program for middle school students. Data was collected from October 10th to 21th, 2005. Subject consisted of 145 middle school students in Kyeonggi, experimental group-72, control group-73. Dick & Carey's(1996) educational system was applied, based on documents and materials online related to drug abuse in order to develop drug abuse prevention program. It's composed of 4 parts, 45 minute each. The evaluation instrument testing for the knowledge about drugs was a criterion of referenced test items modeled by Dick & Carey. The instrument for attitudes about drugs was modeled by Kim, Soyaja. A pre-test was taken on the knowledge and attitudes to drugs. The experimental students were given four sessions of drug abuse prevention education. A post-test similar to the pre-test questionnaire was given in 1 week, 4 weeks following the last session. Collected data was analyzed by using SAS 9.1 program. Results：Followings are the summarized result of study 1. The experimental group, that attended the drug abuse prevention program will have more knowledgable about drugs than the control group (F=27.31, p<.0001). 2. The experimental group, that attended the drug abuse prevention program displayed greater negativism attitude than the control group (F=0.58, p=0.4477). Conclusion：The results conclude that drug abuse prevention programs increase the knowledge of middle school students but doesn't change their attitude toward drugs. Therefore we need to offer them more systematic education to increase their knowledge so it will also improve their attitudes as well.

• 무역상무연구
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• 제71권
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• pp.217-243
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• 2016

As the rapid development of IT and the internet changed the trading method from the traditional offline transaction into the online e-Trading, the international documentation standards, the eUCP and the domestic laws and legislations have been established, adapting to the new e-Trading environment. This study was conducted to analyze the factors which affect the use of uTradeHub on the domestic trading companies and trade-related organizations and suggest how to activate e-Trading. To do this, classify the users into the enterprises and the trade-related organizations, set up the hypothesis of the study with the measurement variables of the user convenience, the new service, the system suitability and the legislation environment and carry out a survey targeting the trading companies and the trade-related offices to do an actual proof analysis. The analysis was performed by using the statistical program, SPSS IBM22.0, and the study hypothesis was tested by the multiple regression analysis methodology. The test result showed that the trading companies set a high value on the user convenience, the new service and the legislation environment of uTradeHub, meanwhile the trade-related organizations regarded the system security and reliability, the user convenience and the legislation environment as the major affecting factor on the use of uTradeHub.

• 농촌지도와개발
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• 제16권1호
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• pp.153-180
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• 2009

The previous researches about knowledge sharing were proceeded in terms of KMS (Knowledge Management System) in center. However, knowledge sharing is recently applied to Internet space, which is open to every users, as well as KMS, which is qualified for restricted people. For example, some portal sites, such as Naver, the most popular portal in Korea, have virtual spaces to share users' knowledges and it is common that many users use the spaces. Knowledge sharing online, compared with KMS, will be more advanced to promote intention for knowledge sharing because of the character of Internet space that is open to all users. Nevertheless, there are few researches about knowledge sharing in the Internet. Considering this situation, this study is attempted to figure out the factors to promote Internet knowledge sharing, based on social capital theory and self-expression concept. A survey of experienced Internet user and PLS (Partial Least Square) were utilized for analysis. The test of this study reveals that social capital and self-expression are significant factors to influence knowledge sharing intention, and that also personal innovation and self-efficacy are significantly related to the self-expression. However, personal innovation does not have significant impact on social capital. According to the result, self-expression, as well as trust and system itself, has significantly effect on knowledge sharing intention in order to promote knowledge sharing in the Internet.

• 한국포장학회지
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• 제26권2호
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• pp.99-103
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• 2020

The volume of parcel delivery is steadily increasing with the rapid growth of the global online e-commerce market. However, a large amount of packaging materials used for these parcel delivery is finally causing environmental problems as waste. In this study, we have taken a pilot test on the returnable parcel delivery packaging & service, which is one of various ways to reduce the generation of the distribution packaging waste raised by e-commerce-based parcel delivery. For the purpose of this project, we made 300 boxes of returnable & foldable delivery packaging(415 mm × 280 mm × 160 mm) and have cooperated with e-commerce company(CJ ENM) & logistics company(LogisAll). Consequently, about 50% of the delivered packages was returned because of the lack of consumer's understanding on the returnable packaging system. We finally have suggested the policy strategy to get over problems derived from the experiment, like the retrieval rate and cost of the returnable packaging, economic efficiency and so on.

• 디지털콘텐츠학회 논문지
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• 제6권3호
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• pp.149-155
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• 2005

요즈음 인터넷 사용자들의 폭발적인 증가와 함께 많은 콘텐츠가 생겨났고 그중 공간의 제약이 없고 교육의 기회가 확대되는 장점으로 인해 사이버강의, 사이버대학이 생기는 등 온라인 교육이 활성화 되고 있는 추세이다. 그러나 온라인 교육은 오프라인 교육과 달리 수강자가 출석이나 시험 일정 둥 자신이 수업에 관한 정보를 계속적으로 관리하지 않으면 출석미달, 과제 및 시험에 관한 정보부재로 인한 어려움이 생길 수 있다. 본 연구에서는 항상 지참하고 있는 휴대폰을 이용하여 사이버강의 둥의 수업 정보를 언제 어디서나 관리하여 온라인교육의 학습능률을 향상시킬 수 있는 모바일 교육시스템을 제안한다.

• 한국컴퓨터정보학회논문지
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• 제28권2호
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• pp.39-46
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• 2023

본 논문은 클라이언트-서버 방식을 사용하는 대규모 1인칭 온라인 슈터 게임(MMOFPS)에서의 네트워크 부하를 줄이기 위한 효율적인 적응적 패킷전송 주기 방법을 제안한다. 플레이어 움직임에 있어서 빠르고 지속적인 변화와 정적이고 선형적인 상태가 다양하게 공존하는 FPS 게임의 특성상 변화의 정도에 따라 서버로의 패킷 전송량을 절약할 수 있는 지점들이 존재하는데, 이를 위해 본 논문에서는 클라이언트가 매 패킷을 전송할 때마다 플레이어의 위치 및 움직임 변수들의 변화량을 측정하여 이를 기반으로 다음번 패킷이 전송되어야 할 시간 간격을 계산한다. 서버 측에서는 받은 패킷의 정보들을 사용하여 다음 패킷이 도착할 때까지의 공백을 메우기 위해 위치 예측을 수행하여 모든 클라이언트에게 브로드캐스팅을 하게 된다. 긴 패킷 전송 간격으로 인한 예측 오차를 줄이기 위하여 전송 간격 최대한계치와 이중 패킷전송 등의 추가적 작업을 수행한다. 결과의 효율성을 보이기 위해 테스트 게임 환경을 구축하여 기존의 고정된 패킷전송 주기 시스템과의 비교분석을 수행하였다.

• 한국인터넷방송통신학회논문지
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• 제13권6호
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• pp.37-45
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• 2013

본 논문에서는 최근 네트워크를 이용한 온라인 원격 진료 서비스가 논의되고 있는 시점에 맞춰 환자에게 적합한 의료기관을 매칭하는 개인 맞춤형 의료서비스 지원 시스템을 제안한다. 본 시스템을 설계하기 위해 개인 맞춤형 의료서비스 지원 시스템의 요구사항을 파악하여 데이터를 표준화하였고 서버와 클라이언트 구조로 아키텍처를 설계하였다. 또한 설계한 시스템을 구현하기 위해 서버와 클라이언트, 온톨로지 저장소의 구조를 정의하고 시스템을 구현하였다. 본 논문에서 설계 및 구현한 개인 맞춤형 의료서비스 지원 시스템을 테스트하기 위해 가정 사항과 시나리오를 작성하여 테스트를 수행한 결과 환자 증상을 선택하면 선택된 증상별로 진료과가 추론이 되고 환자가 원하는 의료기관의 항목에 따라 1차 추론되 진료과에 맞는 의료기관이 추론이 되는 것을 확인하였다.

• 유통과학연구
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• 제18권3호
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• pp.87-97
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• 2020

Purpose: The aim of this study is to understand the internal and external responses that consumers experience when they are exposed to an innovative system in retail stores. This study considered the SST(Self-Service Technology) system in a retail setting as a type of functional environmental stimuli and selected a smart shopping cart as an example of SST system. The influences of functional environmental stimuli on consumers' emotional, cognitive, and behavioral responses were examined by applying S-O-R model. In addition, this study attempted to extend the traditional S-O-R model by (a) incorporating personal characteristics variables such as time pressure and perceived crowding and (b) considering not only emotional but also cognitive aspects of consumers' internal responses. Research Design, Data, and Methodology: This study used a video-scenario technique. Participants watched a video about grocery shopping situations using a smart shopping cart and responded to their emotional, cognitive, and behavioral responses. An online survey was conducted using Amazon's Mechanical Turk (N = 185). All participants were US consumers over 20 years old and had been shopping at the grocery store in the last month. Data were analyzed through structural equations modeling with AMOS 20. Results: Test results showed that consumers who perceived higher levels of time pressure and perceived crowding in usual shopping situations were more likely to evaluate the SST system favorably. The results showed that personal characteristics have a significant impact on consumers' evaluation of functional environmental stimuli in retail setting. As consumers evaluated the SST system favorably, they experienced more positive affect and less negative affect during their shopping behaviors. Positive affect led to good service quality inference, which further increased patronize intention. However, negative affect did not show a significant impact on service quality inference, but only on patronize intention. Conclusions: This study attempted to investigate the influence of SST system by extending the traditional S-O-R model. This study classified the SST system as functional environmental stimulus of retail stores and analyzed the effect of stimulus on consumers' internal and external responses. The results of this study showed that the introduction of innovative SST can serve as an effective store differentiation strategy in an increasingly competitive retail environment.