• ETRI Journal
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• 제44권4호
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• pp.654-671
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• 2022

Accidental falls frequently occur during activities of daily living. Although many studies have proposed various accident detection methods, no high-performance accident detection system is available. In this study, we propose a method for integrating data and accident detection algorithms presented in existing studies, collect new data (from two stunt performers and 15 people over age 60) using a developed wearable device, demonstrate new features and related accident detection algorithms, and analyze the performance of the proposed method against existing methods. Comparative analysis results show that the newly defined features extracted reflect more important risk factors than those used in existing studies. Further, although the traditional algorithms applied to integrated data achieved an accuracy (AC) of 79.5% and a false positive rate (FPR) of 19.4%, the proposed accident detection algorithms achieved 97.8% AC and 2.9% FPR. The high AC and low FPR for accidental falls indicate that the proposed method exhibits a considerable advancement toward developing a commercial accident detection system.

• 농촌지도와개발
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• 제20권2호
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• pp.451-484
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• 2013

본 연구는 이주여성의 주관적 안녕감에 영향을 미치는 요인을 개인적, 가정적, 사회적 변인으로 나누어 분석하였다. 개인적 변인으로는 부부나이차, 입국이유, 종교유무, 결혼생활기간, 취업유무, 경제수준, 한국문화적응정도, 한국어능력, 자아탄력성으로 설정하였다. 가정적 변인으로는 결혼방식, 결혼이유, 남편의 아내모국어 이해정도, 남편의 아내모국문화이해정도, 결혼생활만족도, 자녀유무, 재산관리주체, 양육효능감으로 설정하였다. 사회적 변인으로는 복지서비스와 제도의 인지여부, 공공기관과 사회단체의 이용경험정도, 사회적 참여모임의 내용으로 설정하였다. 연구대상은 충청남도 아산시에 거주하고 있는 이주여성 256명이며 중다선형회귀 분석을 하였다. 연구결과는 개인적 변인으로는 자아탄력성, 결혼생활기간, 한국문화적응정도, 경제수준, 가정적 변인으로는 양육효능감, 결혼생활만족도, 결혼방식- 타인의 소개 없이, 사회적 변인으로는 모국여성자조모임참여, 복지서비스와 제도의 인지여부, 취미학습동아리모임참여, 친목 종교모임참여 등이 유의한 영향을 미쳤다. 본 연구의 결과를 바탕으로 이주여성들의 주관적 안녕감에 영향을 미치는 요인들을 찾고 내적자원과 강점을 적극적으로 지원하기 위한 사회적 방안을 마련할 수 있는 기초를 삼고자 하는 것에 그 의의를 둔다.

• 한국콘텐츠학회논문지
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• 제22권7호
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• pp.264-275
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• 2022

본 연구는 청소년들이 인지하고 있는 개인적 요인으로서 사회적 위축, 우울, 공격성, 부모 요인으로서 부정적 양육태도, 학교 요인으로서 친구 관계, 학업 무기력과 스마트폰 과의존, 끈기 등이 청소년 비행 경험에 어떠한 영향을 미치는지를 파악하고자 수행되었다. 이러한 연구를 위해 한국아동·청소년패널조사(KCPYS 2018) 1차년도 데이터 중에서 중학교 1학년을 분석 대상으로 하였다. 연구 결과, 청소년의 개인 요인으로서 우울, 공격성, 사회적 위축, 부모 요인으로서 부정적 양육태도, 학교요인으로서 학업 무기력, 부정적 친구관계, 스마트폰 과의존, 끈기 등이 청소년의 비행 행동에 영향을 미치는 것으로 나타났다. 또한, 개인 요인, 부모 요인, 학교 요인이 청소년의 비행 경험에 영향을 미치는 과정에서 스마트폰 과의존과 끈기는 부분 매개역할을 하는 것으로 나타났다. 이러한 결과를 바탕으로 먼저, 청소년에 대한 고정 관념을 깨고 청소년의 비행 행동에 대한 정확한 이해와 청소년들의 기대감이 무엇인지 파악해야 한다. 둘째, 부모의 일관성 있는 양육 태도와 효과적인 양육을 위해 부모 및 조부모 대상으로 실질적인 교육이 필요하다. 셋째, 청소년의 친구 관계 향상을 위해 긍정적인 자기 인식, 올바른 인간관계 형성 프로그램을 운영해야 한다. 마지막으로, 올바른 스마트폰 사용법과 충동성을 완화시키는 상담적 개입과 예방 프로그램이 필요하다.

• 지식경영연구
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• 제7권2호
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• pp.97-122
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• 2006

The purpose of this study is to investigate the relationships between knowledge sharing antecedents and knowledge sharing intention in a financial institute and knowledge sharing behavior, knowledge sharing behavior and knowledge sharing performance. This paper first reviews the influencing factors of knowledge sharing and presents the research framework on knowledge sharing with categorized four factors such as structural factors, relational factors, personal and task characteristics. Based on a research framework, survey analysis was conducted with financial institution members. This paper examined the relationship between antecedents of knowledge sharing and knowledge sharing intention, knowledge sharing intention and knowledge sharing behavior. Also it analyzed the relationship between knowledge sharing behavior and the knowledge sharing performance. As a result, the paper suggested that the knowledge sharing intention consist of two dimensions. The first is voluntary knowledge sharing intention. The second is solicited knowledge sharing intention. The former has a significant positive relationship with the innovativeness, communication, personal creative propensity and perception of the knowledge sharing. The later has a significant positive relationship with the task interdependence but has a significant negative relationship with the knowledge sharing evaluation system. Knowledge sharing intention has a significant positive relationship with the knowledge sharing behavior. Also knowledge sharing behavior has a significant positive relationship with the knowledge sharing performance. Finally, the implications and limitations of the study are discussed.

• 한국정보시스템학회지:정보시스템연구
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• 제26권1호
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• pp.143-169
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• 2017

Purpose With the increase of the elderly population, the growth of its information system related market is increasing. However, empirical studies for the usage of elderly people's smartphones are still limited. This study aims to investigate the factors that affect the seniors' smartphone usage behaviors. Design/Methodology/Approach First, a preliminary study was conducted with targeting seniors who have visited Gwangju Senior Technology Center(GSTC) in order to understand the factors that affect the intention of utilizing smartphones. Next, based on the preliminary study results and literature reviews including the UTAUT model, performance expectancy, effort expectancy and social influence were considered for the major factors affecting the usage of elderly people's smartphones. Also, the moderate effects of personal innovativeness and usage function were discussed. A questionnaire survey of 181 seniors visiting GSTC was analyzed to empirically test the research model. Findings By the empirical tests, the performance expectancy and the effort expectancy of the seniors had significant impacts on their smartphone usage behavior. While the moderating effect of personal innovativeness was not significant, the moderating effect of the usage function was significant in the relationship between performance expectancy and the smartphone usage behavior. The results of this study are expected to provide guidelines to excavate the technical development and the niche market targeting the elderly people.

• 한국학교보건학회지
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• 제23권2호
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• pp.286-295
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• 2010

Purpose: This study was conducted to identify the factors affecting the job stress of school nurses and reducing their the job stress by analyzing degree of the stress according to the factors related to job stress. Methods: The participants were 136 school nurses who worked in Pusan province. The Data were collected by self-reporting questionnaires from Dec. 11th in 2006 to Feb. 9th in 2007. The data were analyzed by Frequency, Mean, t-test, ANOVA, Pearson Correlation Coefficient and Stepwise multiple regression analysis (SPSSwin 12.0s). Results: There was significant difference of the degree of job stress in age. There was significantly negative relationship between the job characteristics and job stress (r=-.473), job satisfaction and job stress (r=-.561), personal values and job stress (r=-.429), achievement motivation and job stress (r=-.215) at p<.01 level. The major factor which influence the degree of job stress was job satisfaction. Conclusion: The factors affecting the job stress of school nurses was correlated with one another and influenced to the degree of the job stress directly and indirectly. The factor that affected the degree of the job stress directly was the job satisfaction and the personal values. As shown this result, it is important that the factor of the job stress lies in the mental characteristics.

• 디지털콘텐츠학회 논문지
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• 제14권3호
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• pp.291-301
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• 2013

본 연구는 LTE 스마트폰의 수용에 영향을 미치는 요인을 도출하기 위한 연구이다. LTE 스마트폰의 수용에 영향을 미치는 요인을 살펴보기 위해 확장된 기술수용모델을 사용하였으며, 변수는 선행연구를 고찰하여 LTE의 특징변수와 개인적인 특징에 관한 변수를 선정하였다. 본 연구는 설문조사를 통해 이루어졌으며, 설문대상은 LTE 스마트폰의 주 사용자 층을 감안하여 20대를 위주로 분석하였다. 연구결과, LTE 스마트폰의 수용에 영향을 미치는 요인은 개인의 혁신성, 속도, 가격 요인으로 나타났다. 본 연구결과를 토대로 향후 마케팅 전략을 입안함에 있어 속도뿐만이 아닌 개인의 혁신성 및 가격에 관한 사항을 자극할 수 있는 요소가 추가되어진다면 더욱 의미 있고 효과적인 마케팅 결과를 도출할 수 있으리라 판단된다.

• 가정∙방문간호학회지
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• 제19권2호
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• pp.150-161
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• 2012

Purpose: This study was performed to investigate the influencing factors of cognitive function and depression in elderly. Method: From 3 provinces, 282 elders who resided in community and facilities completed structured questionnaires, including cognitive functions, depression, self-esteem, ADL, and IADL. Data were analyzed by applying ${\chi}^2$-test, ANOVA, partial correlation coefficient, and stepwise multiple regression analysis with SAS 8.12. Results: Community dwelling aged people showed higher scores in MMSE-K, self-esteem, ADL and IADL, and showed lower scores in depression than facility elders. MMSE-K was positively correlated in self-esteem, ADL, and personal cognition of health, except depression. Major factors that affect cognitive function of elderly were residual type, age, and IADL. In addition, major factors that affect depression of elderly were self-esteem, personal cognition of health, and marital status. Conclusions: Based on the results above, it is necessary to identify the status of cognition and depression in the elderly, and to develop nursing intervention programs, which improve cognitive function and reduce depression for aged, especially for the facility admitted aged.

• 한국안전학회지
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• 제21권5호
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• pp.60-71
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• 2006

In recent years, the most safety studies have been focused on identifying the relationship between safety climate and safe work behavior in accordance with the awareness that prime causes of accidents are organizational, managerial, and human factors rather than pure technical failures across the world. This study focused empirical research aimed at finding out the safety climate factors and examining the relationships of the safety climate and safe work behavior in construction site in Korea, too. A 10 numbers of safety climate factors were adapted from the Mohamed's study(2002) and tested using PLS-GRAPH 3.0 expecting same results as Mohamed' study. And then the relationship between safety climate and safe work behavior was examined. Only two safety climate factors-personal risk appreciation and worker's safety competence-were found and a strong positive relationship between safety climate and safe work behavior was identified in this study. Discussed in details about the results and implications and suggested further studies.

• 한국정보시스템학회지:정보시스템연구
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• 제15권2호
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• pp.49-75
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• 2006

The main purpose of this study is to identify the factors affecting personnel e-Learning acceptance. We used self-efficacy and perceived playfulness as independent variables to extended Technology Acceptance Model in an e-Learning contort. Perceived playfulness is the one of the important personal intrinsic motivational factors which could enlarge the understanding process of technology acceptance in the personal perspective. Questionnaires were collected from 94 respondents who experienced e-Learning systems that L Corporation provided. This study developed and empirically tested a model representing the relationship by using Structural Equation Model among factors which are: perceived usefulness, perceived ease of use, perceived playfulness, self-efficacy and attitudes. Also we measured affective and cognitive attitude because, most psychometric literature explain attitude has two different dimensions which are affective and cognitive. The major findings of the study are summarized as follows. Firstly, the higher the perceived usefulness the more affected the behavioral intention was to use as well as attitude to be positive. Secondly, as much as perceived playfulness more affected the perceived ease of use as well as self-efficacy. Finally, the perceived ease of use and self-efficacy are not significantly affected attitude while they are affected perceived usefulness and perceived playfulness.