• 보험의학회지
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• 제29권1호
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• pp.4-6
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• 2010

The life expectancy of HIV-infected subjects has improved dramatically since the introduction of highly-active antiretroviral therapy (HAART). Considering that patients with HIV infection are living longer, treatment plans should include those for the accompanying co-morbidities such as cardiovascular diseases, metabolic syndrome, malignancy, etc. This review discusses the impact of HAART on the epidemiology of survival and co-morbidities (malignancy and cardiovascular diseases) among HIV-infected subjects.

• Journal of Information Technology Applications and Management
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• 제23권2호
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• pp.153-176
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• 2016

This study investigated factors affecting the use intention of podcast service users based on the unified theory of acceptance and use of technology (UTAUT). Performance expectancy, effort expectancy, social influence, facilitating condition, hedonic motivation, innovativeness, and media credibility were used as independent variables in the model. The survey data from the users of the podcast portal 'podbbang' were analyzed with Smart PLS 2.0 to test the structural equation model. The results revealed that the podcast service user's effort expectancy, facilitating condition, hedonic motivation, and media credibility have a significant influence on use intention. However, the relationship between the podcast service user's performance expectancy, social influence, innovativeness, and use intention were not identified as significant.

• 한국산업정보학회논문지
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• 제17권7호
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• pp.177-186
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• 2012

SNS는 인터넷 상에서 비슷한 관심을 가진 사람간에 관계를 형성하고 정보나 컨텐츠를 공유하거나 인맥 관리 등과 같은 다양한 활동을 지원하는 서비스이다. 본 연구는 UTAUT를 기반으로 하여 혁신성이 사용 의도에 어떻게 영향을 미치는 지를 분석하는 것이다. 이를 위해 성과 기대, 예상 노력, 사회적 영향, 혁신성을 독립 변수로 하고, 성별과 혁신성을 조절 변수로 하여 연구 모델을 설정하였다. 403명의 대학생을 대상으로 실증 분석한 결과는 다음과 같다. 첫째, 성과 기대, 예상 노력, 사회적 영향, 혁신성은 사용 의도에 유의적인 영향을 미치는 것으로 나타났으며, 예상 노력이 가장 큰 영향을 미치는 것으로 나타났다. 둘째, 성별은 조절 효과가 있는 반면에, 혁신성은 조절 효과가 없는 것으로 나타났다. 남성의 경우 성과 기대가 사용 의도에 미치는 영향이 강하게 나타났으며, 여성의 경우 사회적 영향이 사용 의도에 미치는 영향이 강하게 나타났다.

• 한국콘텐츠학회논문지
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• 제14권6호
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• pp.477-490
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• 2014

본 연구의 목적은 사이버대학생의 모바일러닝 지속사용의도에 영향을 미치는 요인을 규명하고, 이를 높이기 위한 구체적인 전략을 모색하는 데 있다. 본 연구에서는 시스템품질, 정보품질, 서비스품질 및 개인혁신성향이 노력기대와 성과기대를 통해 지속사용의도에 영향을 미칠 것으로 가정하였다. 가설적 연구모형을 검증하기 위해 2013년도 2학기에 W사이버대학에서 웰빙건강학부 한방건강학과의 전공과목 수강생 279명에게 설문조사를 실시하였으며, 수집한 자료를 바탕으로 구조방정식을 활용하여 변인 간의 구조적 인과관계를 검증하였다. 연구결과, 시스템품질과 개인혁신성향은 노력기대에 영향을 미쳤으며 정보품질, 서비스품질 및 개인혁신성향은 성과기대에 영향을 미치는 것으로 드러났다. 또한 노력기대와 성과기대는 지속사용의도에 영향을 주었다. 이러한 연구결과를 바탕으로 모바일러닝 학습자의 지속사용의도를 높이기 위해서 모바일러닝의 시스템품질과 정보품질 및 서비스품질을 높이고, 학습자의 혁신성향을 증진시키는 것이 중요함을 제안하였다.

• 컴퓨터교육학회논문지
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• 제18권4호
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• pp.19-30
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• 2015

본 연구는 고등학생의 모바일러닝 사용의도 및 실제사용에 영향을 미치는 요인들을 규명하고, 이를 높이기 위한 구체적인 전략을 모색하고자 UTAUT모형에 태도를 추가하여 성과기대, 노력기대, 사회적 영향, 촉진조건, 태도, 사용의도, 실제사용 간의 구조적 인과관계를 분석하고자 한다. 이를 위해 고등학교 3학년 재학생 285명의 설문조사를 실시하고, 데이터의 구조적 관계를 구조방정식모형으로 분석하였는데 그 결과는 다음과 같다. 첫째, 성과기대, 노력기대는 태도에 유의한 영향을 미치지만, 사회적 영향은 태도에 영향을 미치지 않는 것으로 나타났다. 둘째, 태도는 사용의도에 유의한 영향을 미쳤으며, 사용의도는 실제사용에 유의한 영향을 미치는 것으로 나타났다. 셋째, 성과기대, 노력기대는 태도를 매개로 사용의도에 영향을 미쳤으며, 태도는 사용의도를 매개로 실제사용에 영향을 미치는 것으로 나타났다. 마지막으로 성별 및 경험에 따른 조절효과는 유의하지 않았다. 본 연구결과를 토대로 고등학생의 모바일러닝 실제사용을 높이기 위한 실천적 전략들을 제안하였다.

• Journal of Information Technology Applications and Management
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• 제26권6호
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• pp.29-46
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• 2019

This study analyzed the factors influencing the technology acceptance of the general public in the drones and ARs, one of the key technologies of the industry 4.0. The theoretical basis was the extended unified theory of acceptance and use of technology model(UTAUT2), which uses performance expectancy, effort expectancy, social influence, facilitating conditions, and hedonic motivation as factors common to both services. The price value factor was excluded considering that most ARs were free, and the perceived risk factors, including privacy, which were not in UTAUT2, were included because they are important factors for ICT technology acceptance. The hypothesis was tested by structure equation model. Social influence and hedonic motivation had a positive(+) effect on intention to use technology. On the other hand, in the case of effort expectancy, neither the AR nor the drone had a significant influence on intention to use technology. Furthermore, performance expectancy had a positive(+) effect on intention to use in AR, but no significant influence was found out in drones. On the contrary, in the case of the facilitating conditions, the influence of the drones was positive (+), but the relation of AR was not investigated. The perceived risk was tested for the negative (-) influence of use intention of AR, but no significant relationship was found out for the drones. Among the significant influencing factors, hedonic motivation was the most powerful factor in AR and drones. Theoretical and practical implications are presented based on these results.

• 기본간호학회지
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• 제16권1호
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• pp.73-82
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• 2009

Purpose: The purpose of this study was to identify the relationships among distress from drinking, alcohol abstinence self-efficacy and outcome expectancy in youths. Method: The participants in this study were 174 university students who were enrolled by convenience sampling. The data were collected from March to August, 2005. Descriptive statistics and Pearson's correlation coefficients with SPSS 12.0 were used to analyze the data. Results: There were significant differences in the physical distress from drinking according to gender, age, residence, drinking frequency and drinking capacity. There were significant differences in alcohol abstinence self-efficacy by drinking frequency and drinking capacity. There were significant differences in drinking outcome expectancy according to gender, drinking frequency and drinking capacity. The physical distress from drinking showed a significant positive correlation with alcohol abstinence self-efficacy (r=.312, p=.000) and negative correlation with drinking outcome expectancy (r=-.353, p=.000). Alcohol abstinence self-efficacy showed a significant negative correlation with drinking outcome expectancy (r=-.387, p=.000). Conclusion: There were relationships among physical distress from drinking, alcohol abstinence self-efficacy, and drinking outcome expectancy. These findings provide the basis to prevent problems of drinking by developing alcohol control program for university students.

• International Journal of Knowledge Content Development & Technology
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• 제6권2호
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• pp.5-27
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• 2016

This research aims to explore the acceptance of Moodle as a teaching and learning tool by the faculty of the Department of Information Studies (IS) at Sultan Qaboos University (SQU) in the Sultanate of Oman. The researchers employed the Unified Theory of Acceptance and Use of Technology (UTAUT) to examine the effects of performance expectancy, effort expectancy, social influence and facilitating conditions on the behavioural intention of SQU faculty members to employ Moodle in their instruction. Data were collected by the interview method. Results showed the emergence of two faculty groups: one uses Moodle and one does not use Moodle. In group that uses Moodle, performance expectancy, effort expectancy, social influence, facilitating conditions and behavioural intention are positively related, thereby influencing the faculty members' use behavior. In addition to the aforementioned UTAUT constructs, four additional factors affect Moodle's adoption. These moderators are gender, age, experience and the voluntariness of use, amongst which gender exhibits the least influence on Moodle adoption. That is, male and female faculty generally both use the learning platform. Although some members of the group that does not use Moodle exhibit optimistic performance expectancy for technology, the overall perception in this regard for Moodle is negative. The other UTAUT constructs exert no influence on this group's adoption of the learning platform.

• 응용통계연구
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• 제29권2호
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• pp.321-330
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• 2016

감독이 작전을 구사하는 상황이나 타자의 타격 가치를 평가하는데 유용하게 사용될 수 있는 지표로서 미국프로야구에 대해서는 기대득점과 기대승리확률, 타격의 득점가치, 타격의 승리가치 등이 제시되었다. 기대득점은 각각의 아웃카운트와 주자 상황에서 그 이닝이 끝날 때까지 얻는 점수의 기댓값이다. 기대승리확률은 이닝, 점수차, 아웃카운트, 주자상태가 주어진 상태에서 경기를 계속 한다고 할 때, 공격하고 있는 팀이 승리할 확률이다. 타격의 득점가치는 타격전 상황의 기대득점과 타격결과에 의하여 변화된 상황의 기대득점 사이의 차이를 말한다. 타격의 승리가치는 타격 전후 상황의 기대승리확률간의 차이로서 타격 결과가 승리에 미치는 영향을 나타낸다. 한국프로야구에서는 장기간 축적된 자료의 부족으로 총 발생횟수에 대한 특정 상황의 상대돗수를 이용하여 구한 이들 지표가 통계적인 의미를 갖지 못하는 경우가 종종 나타난다. 이와 같은 문제점을 극복하기 위하여 본 논문에서는 마르코프연쇄를 이용하여 한국프로야구에서 기대득점, 기대승리확률, 득점가치와 승리가치를 구하는 방법을 제시한다.

• 한국인구학
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• 제9권2호
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• pp.53-66
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• 1986

This study was carried out to determine the mortality level and it's related demographic factors in Korea since 1942. In order to clarify the changes in structure of mortality and the causes of death, the indices such as Crude Death Rate(CDR) or Life Expectancy at Birth were used. The author examined the mortality levels and major causes of death and performed the relevant demographic analysis. The followings are the summary of this study: 1. The CDR declined rapidly till 1960's. Such improvement slowed down from 1960's to mid 1970's and stabilized afterwards. It was due to the change of age composition, namely, the increase of aging population. 2. The Life Expectancy at Birth increased rapidly till mid 1960's. But elongation of the Life Expectancy slowed down after then. Especially in female, it slowed down more. 3. Changing patterns of major causes of death summarize that, till 1960's infectious diseases were major causes of death, but recently non-infectious diseases like chronic degenerative diseases became more prevalent. 4. The elongation of Life Expectancy at Birth till mid 1960's was mainly resulted by $_4{q}_1$. But the major contributing factor of the improvement in Life Expectancy at Birth in female is he reduction of $_$\infty${q}_{50}$ recently. In male, the improvement in Life Expectancy at Birth is due to the reduction of $_1{q}_0$. recently. 5. The age-sex-specific mortality rates revealed that $_n{q}_x$ declined in common throughout the period, even though there exists some variability of their ranges as age changes. Consequently, this study seems to suggest that the demographic transition in Korea occurred between late 1960's and early 1970's. In other words, the rapid change before late 1960's was eased in early 1970's. The slow change in this period caused a stabilizing pattern. Therefore, the population change is expected to be stabilized continuously.