• 치위생과학회지
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• 제20권1호
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• pp.44-50
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• 2020

Background: Smartphones are a modern necessity. While they are convenient to use, smartphones also have side effects such as addiction. This study assessed the relationship between smartphone use, a part of everyday life in modern society, and oral health. Methods: An analysis was conducted using 2017 Korea Youth Risk Behavior Web-based Survey data. The propensity score estimation algorithm used logistic regression and 1:1 matching algorithm using nearest-neighbor matching. After matching, a total of 15,032 participants were classified into two groups containing 7,516 teenagers each who did and did not use smartphones, respectively. Results: Comparison of oral health behaviors according to smartphone use revealed a statistically significant difference in the frequency of tooth brushing per day, use of oral hygiene products, intake of foods harmful to oral health, and experience of oral health education (p<0.05). The factors affecting oral pain experience of adolescents were examined. Compared to male participants, female participants had an odds ratio of 1.627 for oral pain (p<0.05). According to the household income level, compared to the group with higher income, the group with lower income showed higher oral pain experience (p<0.05). Oral pain experience was 1.601 times more frequent among teenagers using smartphones (p<0.05). Conclusion: The results of this study indicated that use of smartphones by adolescents affected their oral health. These findings indicate the need for improved oral health management through the use of effective school oral health programs and individual counseling by oral health professionals, promotion of information dissemination through public media, and development of prevention strategies.

• 한국IT서비스학회지
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• 제14권1호
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• pp.145-158
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• 2015

Currently, Social Commerces have increasingly gained popularity with the growth of Social Network Services (SNS). As the applications of smartphones are being applied in widespread areas, social commerces in the smartphone environment have entered a new chapter. The applications of social commerces on smartphones are widely used, which has increased the market share of social commerces exponentially. Thus, we tried to find out factors which may affect the user acceptance of social commerces in the smartphone environment. We develop a research model to examine how social commerces in the smartphone environment are accepted by users based on the academic factors-switch costs, trend-seeking tendency, richness in media. The theoretical model is validated through an survey of social commerce users in the smartphone environment from the undergraduates and the graduates in Seoul, Korea. The structural equation analysis is conducted based on the partial least square (PLS) approach. The results reveal that the switch cost will have positive mediating influences to the intention to use social commerce in the smartphone environment. We also find that the perceived usefulness of the smartphone is affected by the media richness. The results also suggest that the trend-seeking tendency has no influences to the users of social commerces in the smartphone environment. Also, theoretical and practical implications are discussed. The findings are believed to increase our understanding an interesting mobile phenomenon, as well as making contributions.

• 한국IT서비스학회지
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• 제12권4호
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• pp.205-218
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• 2013

Recently, due to the proliferation of smartphones, users of mobile banking services which are based in wireless Internet without constraint of the time and places are significantly increased. In the study, considering the characteristics of mobile banking services based on the smartphone and the user behavior. we analyse the factors which have an effect on the behavioral intention to use mobile banking services based on the smartphone. For this purpose, we use the model which is based on Technology Acceptance Model (TAM) and add two constructs:the perceived enjoyment and the perceived risk. A survey data for 194 students at the K cyber university is used for statistical analysis. As a result, the perceived ease of use affects the perceived usefulness and the perceived enjoyment, and the perceived ease of use. And the perceived usefulness and perceived enjoyment affect continuous intention to use. On the other hand, the hypothesis which the perceived risk would affect adversely the continuous intention to use is rejected. Through this study, we expect to provide the useful implications for the smartphone banking services and contribute to the development of strategy for them.

• 한국산학기술학회논문지
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• 제21권4호
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• pp.82-90
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• 2020

본 연구는 간호대학생들의 공감능력, 자기조절력, 스마트폰 의존성이 대인관계에 미치는 영향을 파악하기 위한 서술적 조사연구이다. 연구 자료는 A시 S대학교에 재학 중인 간호대학생 157명을 대상으로 구조화된 설문지로 조사하였다. 자료수집 기간은 2019년 5월 27일에서 5월 31일까지이며, 수집된 자료는 SPSS WIN 14.0을 이용하여 Independent t-test, One-way ANOVA, Pearson correlation coefficients, Stepwise multiple regression으로 분석하였다. 연구결과, 대상자의 성적에 따라 자기조절력(F=5.319, p=.006)과 스마트폰 의존성(F=4.854, p=.009) 정도의 차이가 나타났고, 스마트폰 사용시간에 따라 스마트폰 의존성(t=-3.381, p<.001) 차이가 있었다. 연령은 자기조절력과 순상관관계(r=.194, p=.015)를, 스마트폰 의존성과는 역상관관계(r=-.223, p=.005)를 보였다. 또한 자기조절력은 공감능력(r=.244, p<.01)과 대인관계(r=.540, p<.001)와는 순상관관계를 보였으며 스마트폰 의존성(r=-.432, p<.001)과는 역상관관계를 보였다. 공감능력과 대인관계는 순상관관계(r=.476, p<.001)에 있었다. 회귀분석 결과, 대인관계에 영향을 주는 요인은 자기조절력(β=.477, p<.001), 공감능력(β=.359, p<.001), 스마트폰 사용시간(β=.208, p<.01)이었으며, 총 설명력은 45.0%(F=12.029, p<.01)이었다. 본 연구를 통해 간호대학생의 대인관계를 향상하기 위한 프로그램에서는 자기조절력, 공감능력, 스마트폰 사용시간에 대한 고려가 필요할 것으로 사료된다.

• 디지털융복합연구
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• 제12권4호
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• pp.409-418
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• 2014

본 연구는 일부 고등학생의 스마트폰 이용실태를 파악하고, 스마트폰 중독정도에 따른 정신건강 및 충동성의 차이 및 스마트폰 중독과 정신건강 및 충동성과의 관계를 파악하기 위해 시도되었다. 고등학교 1, 2학년 804명의 자료를 최종 분석하였으며 중독 척도 총점 상위 25%를 중독점수가 높은 집단(213명)으로, 하위 25%를 중독점수가 낮은 집단(204명)으로 정의하였다. 학생들은 성별, 학년, 학습성취, 학교생활 만족, 용돈, 부모의 신뢰 수준, 이성 친구 유무에 따라 유의한 차이가 있었다. 스마트폰 중독은 정신건강과 유의한 순 상관관계를 보였으며 정신건강 하부요인인 불안, 우울, 신체화, 강박, 대인민감성, 적대감, 편집성에서 모두 유의한 정적상관을 보였고 그 중 불안이 가장 높은 상관관계를 보였다. 또한 스마트폰 중독은 충동성에서도 유의한 상관이 있는 것으로 나타났으며 정신건강과 충동성의 관계에서도 정적상관이 있는 것으로 확인되었다.

• 품질경영학회지
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• 제40권3호
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• pp.359-371
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• 2012

Purpose: Due to the explosive growth and widespread use of smartphones, new business opportunities are emerging. Despite the importance of creating customer value in using smartphone applications, past studies on have mainly focused on functions or factors and specifications that influence users to use the device. Methods: This study is intended to identify how customer dissatisfaction from the use of smartphone application services affects customer sentiment and behavior. The research model is tested via a survey of 290 smartphone application users. Results: The result of this empirical study indicates that customer dissatisfaction significantly affects the user's disappointment and regret in using a service, which are subordinate values of customer emotion. The user's anger is positively associated with 'Negative word of mouth' and 'Complaint', which are subordinate values of customer behavior, but not with an intention to switch to another service. 'Regret' and 'Disappointment' are positively associated with 'Negative word of mouth' and 'Switching intention', but not with 'Making direct complaints'. Finally, customer's negative sentiments are a significant intermediary in the relationship between customer dissatisfaction and behavioral response. Conclusion: Finally, the study offers a more systematic understanding on the phasal response process of customer dissatisfaction in relation to the provision of smartphone application services.

• 디지털산업정보학회논문지
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• 제7권1호
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• pp.51-61
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• 2011

A smartphone is a mobile phone that offers more advanced computing ability and connectivity than a contemporary basic feature phone. Unlike feature phone, a smartphone allows the user to install and run more advanced applications based on a specific platform. Smartphones run complete operating system software providing a platform for application developers. A smartphone will become the default computing method for many point activities in the not-too-distant future, such as e-mail, online shopping, gaming, and even video entertainment. For smartphone that contains sensitive information and access the Internet, security is a major issue. In the 1980s, security issues were hardly noticed; however, security is a major issue for users today, which includes smart phones. Because security is much more difficult to address once deployment and implementation are underway, it should be considered from the beginning. Recently our government recognized the importance of smartphone security and published several safety tips for using the smartphone. However, theses tips are user-oriented measures. Maintaining the security of a smartphone involves the active participation of the user. Although it is a important users understand and take full advantage of the facilities afforded by smarphone, it is more important developers distribute the secure smartphone application through the market. In this paper we describe some scenarios in which user is invaded his/her privacy by smartphone stolen, lost, misplaced or infected with virus. Then we suggest the security considerations for securing smartphone applications in respect with developers. We also suggest the methods applying domestic encryption algorithms such as SEED, HIGHT and ARIA in developing secure applications. This suggested security considerations may be used by developers as well as users (especially organizations) interested in enhancing security to related security incidents for current and future use of smartphones.

• 한국임상보건과학회지
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• 제7권2호
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• pp.1308-1317
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• 2019

Purpose: The purposes of this study are to investigate the actual uses of a smartphone and tendencies for smartphone addiction among dental hygiene students, examine the effects of life stress, self-esteem, communication ability and interpersonal relationship ability considered to have correlations with addiction, and is provided basic data to solve the problems. Methods: The investigator analyzed data collected from 332 students in the Dental Hygiene Department at J University in Gyeongnam Province with SPSS 18.0. Results: The students scored mean 2.34±0.40 points on the four-point scale of smartphone addiction tendencies, 1.70±0.43 on the life stress scale, 2.99±0.32 on the interpersonal relationship ability scale, 2.80±0.42 on the self-esteem scale, and 2.83±0.39 on the Communication ability scale. There were differences in their smartphone addiction tendencies according to such general characteristics as the grade(p<.05), perceptions of a smartphone(p<.001), and hours of using a smartphone(p<.001). They had differences in life stress according to the grade(p<.01). Their smartphone addiction tendencies increased according to higher percentage of a smartphone(β=.360, p<.001), longer hours of using a smartphone(β=.225, p<.001), and greater life stress(β=.297, p<.001). The higher their smartphone addiction tendencies were, the lower their self-esteem was(β=.-210, p<.001). Conclusions: The study provides data needed for dental hygiene students to recognize the problems of smartphone addiction, find improvement measures, and make effective use of a smartphone.

• Journal of Information Technology Applications and Management
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• 제20권1호
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• pp.149-171
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• 2013

The purpose of this study is to investigate factors influencing Chinese consumers' intention to adopt Smartphones. This paper examines Smartphone characteristics factors (situational dependence, diversity and security) and consumer personality characteristics (innovation, self-efficacy and familarity) based on the Technology Acceptance Model. The 320 sets of data are tested against the model using SEM (structural equation model). The research results reveal that diversity and security have significant influences on both perceived usefulness and perceived playfulness. According to the data analysis, self-efficacy affects only perceived easy of use, and familiarity positively affects perceived easy of use, usefulness and playfulness. This study finds that perceived easy of use and perceived usefulness have positive influences on behavioral intention to adopt Smartphones, and situational dependence and innovation directly affect the behavioral intention. The perceived cost has a negative impact on the behavioral intention. Research results are discussed, and limitations of the current study and future research are presented.

• 대한인간공학회지
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• 제32권4호
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• pp.363-370
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• 2013

Objective: This study investigates the influences of vibrations on hedonic satisfaction based on four kinds of perceptions (perceived ease of use, perceived usefulness, perceived enjoyment, cognitive concentration) when mobile gaming. Background: As mobile gaming is becoming more and more popular for smartphone users, they might want to have more hedonic satisfaction instead of focusing on traditional usability criteria such as efficiency, effectiveness, and satisfaction. Method: We conducted a human-factors experiment with 35 male subjects to evaluate hedonic satisfaction in the mobile game configured by 7 vibration types having different levels of intensity and length. Results: The results revealed that the use of vibration significantly increases the perceived ease of use, perceived usefulness, and cognitive concentration. In addition, the intensity of vibration makes differences of perceived usefulness and cognitive concentration. Conclusion: Vibration can be effectively used to improve hedonic satisfaction of smartphone users in mobile gaming when they are not allowed to turn the sound effects on. Application: This study helps game designers effectively provide vibration feedback of mobile games for smartphone users.