• Title/Summary/Keyword: Hierarchical data

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Factors influencing the consumption of convenience foods among Korean adolescents: analysis of data from the 15th (2019) Korea Youth Risk Behavior Web-based Survey (한국 청소년의 편의식품 섭취 경험에 영향을 미치는 요인: 제15차 (2019년) 청소년건강행태온라인조사를 이용하여)

  • Park, Seul Ki;Lee, Ji Hyun
    • Journal of Nutrition and Health
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    • v.53 no.3
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    • pp.255-270
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    • 2020
  • Purpose: The purpose of this study was to identify the factors that influence the consumption of convenience foods among Korean adolescents. Methods: This study had a descriptive cross-sectional study. Data were obtained from the 15th (2019) Korea Youth Risk Behavior Web-based Survey, which involved a nationwide representative sample of 57,303 middle- and high-school students. Convenience-food consumption was defined by frequency of adolescents consuming convenience foods obtained from convenience stores, supermarkets, and cafeterias over the previous 7 days. The analyzed variables were related to sociodemographic, mental health, and health behavior. The Rao-Scott χ2 test was applied to examine the difference in the rate of consuming convenience foods obtained from convenience stores according to each factor. Hierarchical logistic regression was conducted to examine the factors that influence convenience-food consumption among Korean adolescents. Results: It was found that 29.1% of Korean adolescents consumed convenience foods obtained from convenience store more than three times per week. The significant influencing factors were female sex; low subjective academic achievement, and subjective household economic status; high perceived stress; low subjective sleep sufficiency; experience of depression; suicidal ideation; lower physical activity; skipping breakfast; lower consumptions of fruit, milk, and vegetables; higher consumptions of soda drinks, sweet drinks, caffeine, and fast food; lower water intake; current smoking and drinking; drug use; and experience of violence. Conclusion: These findings provide a better understanding of the sociodemographic, mental-health, and health-behavior factors that influence the consumption of convenience foods among Korean adolescents. We suggest that differentiated policies, strategies, and nutrition education need to be developed and implemented, in order to address the above-mentioned factors and thereby reduce such behaviors among Korean adolescents.

Differential Relationship between Maternal Monitoring and Adolescent Drinking and Vandalism as a Function of Adolescents' Parental Rule Obedience (어머니의 감독과 부모가 정한 규칙에 대한 준수의무감에 따른 청소년의 음주 및 타인 소유물 파손 행동)

  • Chyung, Yun-Joo;Darling, Nancy
    • Korean Journal of Child Studies
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    • v.24 no.3
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    • pp.73-85
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    • 2003
  • The purpose of this study was to examine whether adolescents' parental rule obedience moderates the relationship between maternalmonitoring and problem behavior (drinking and vandalism). Participants were 398 adolescents attending a middle school (6th through 8th grades) in a semi-rural mid-Atlantic community in the USA. Data were collected by questionnaires including items regarding relationships with parents, problem behavior, and peer relationships. Hierarchical multiple regression was usedto analyze the data. Results indicate that maternal monitoring is negatively related with adolescent drinking and vandalism. However, the negative relationship varies as a function of adolescents' parental rule obedience. The relationship was stronger among adolescents with lower level of parental rule obedience than among adolescents with higher level of parental rule obedience. Findings from this study suggest that research on maternal monitoring during adolescence needs to take adolescents' personal characteristics into account to better understand the process. They also suggest that parents could lower the possibility that their children's will be involved in drinking and vandalism by maintaining quality relationships with their children because children are more likely to internalize their parents' rules and standards when they have positive relationships with parents.

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The Influence of Inservice Training on Organizational Socialization of New Dental Hygienists (신규치과위생사의 직무교육이 조직사회화에 미치는 영향)

  • Kim, Hye-Young;Kim, Hyeong-Mi;Lee, Jung-Suk;Lee, Su-Young
    • Journal of dental hygiene science
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    • v.15 no.5
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    • pp.560-568
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    • 2015
  • The aim of this study was to provide basic data that could give a positive effect for both new dental hygienists and dental institutions by identifying the impact of one the job training on the organizational socialization, targeting 162 new dental hygienists who currently worked in dental clinic. The data were analyzed using the chi-squire, independent-samples t-test, hierarchical regression analysis. It was shown that the characteristics and contents of a duration of inservice training for new dental hygienists, difficulty, satisfaction, and details of on-the-job training affected organizational socialization by 26.1%. The factor that had the greatest impact on the organizational socialization was dental hygiene service training, followed by guidance of hospital service regulations. This study was significant in that it applied the concept of organizational socialization to the dental hygienists. The future study on the more effective and systematic training program will be needed to help new dental hygienists be socialized more effectively in the new organization.

The Influence of Career Barriers on College Students Majoring in Culinary Arts on Career Preparation Behavior - The Moderating Effect of Self-efficacy - (조리 전공 대학생이 지각하는 진로장벽이 진로준비행동에 미치는 영향 - 자기효능감의 조절효과를 중심으로 -)

  • Kim, Hyejin;Yoon, Hye Hyun
    • Culinary science and hospitality research
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    • v.22 no.4
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    • pp.65-80
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    • 2016
  • The objective of this study is to investigate the influence of career barriers on college students majoring in culinary arts on career preparation behavior, and the moderating effect of self-efficacy between career barriers and career preparation behavior. For this purpose, the data was collected through a questionnaire survey from four hundred and eleven students majoring in culinary arts at colleges in South Korea. The data were analyzed by using factor analysis, reliability analysis, multiple regression analysis, and hierarchical analysis with SPSS 18.0. The results are as follows. Among the career barriers, the lack of job information and lack of interest had a significant negative influence on information gathering behavior, although physical inferiority had a significant positive influence on information gathering behavior. The lack of self-concept clarity and lack of job information had a significant negative influence on practical efforts, while conflicts with important others and physical inferiority had a significant positive influence on practical efforts. In addition, the lack of self-concept clarity, lack of job information, and lack of interest had a significant negative influence on tool preparation behavior. Pysical inferiority had a significant positive influence on tool preparation behavior. Self-efficacy showed a partial moderating effect between the lack of job information and tool preparation behavior. Managerial implications and limitations were also discussed.

Developing and Applying a New Methodology for Value-Centered HCI: Focusing on User Experience Structure of Mobile Data Service (가치 중심적 HCI를 위한 새로운 방법론의 개발 및 적용: 모바일 데이터 서비스의 사용자 경험 구조를 중심으로)

  • Lee, In-Seong;Choi, Bo-Reum;Kim, Jin-Woo;Lee, Ki-Ho;Jung, Seung-Ki
    • Journal of the HCI Society of Korea
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    • v.2 no.1
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    • pp.13-24
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    • 2007
  • For many years, human-computer interaction (HCI) practitioners have focused on usability in order to enhance the user experience, and companies have seen it as an area where they can gain advantages over their competitors. However, a focus on usability limits the potential of HCI research because it restricts the concept of user experience to just an implemented functionality of the information technology (IT). Therefore, it is necessary to expand the boundary of user experience research into a holistic dimension. We suggest that one of the most powerful ways to broadly understand user experience with an IT is to investigate the attributes of an IT and users' perceived values and to construct a user experience structure, a hierarchical structure between the attributes of an IT and users' perceived values. This study thus undertakes two research tasks: to develop a specific methodology, which is the visual probing, for constructing a user experience structure with the attributes of an IT and users' perceived values, and then to build a user experience structure practically by conducting a case study to a specific IT: mobile data service.

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Building Matching Analysis and New Building Update for the Integrated Use of the Digital Map and the Road Name Address Map (수치지도와 도로명주소지도의 통합 활용을 위한 건물 매칭 분석과 신규 건물 갱신)

  • Yeom, Jun Ho;Huh, Yong;Lee, Jeabin
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.32 no.5
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    • pp.459-467
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    • 2014
  • The importance of fusion and association using established spatial information has increased gradually with the production and supply of various spatial data by public institutions. The generation of necessary spatial information without field investigation and additional surveying can reduce time, labor, and financial costs. However, the study of the integration of the newly introduced road name address map with the digital map is very insufficient. Even though the use of the road name address map is encouraged for public works related to spatial information, the digital map is still widely used because it is the national basic map. Therefore, in this study, building matching and update were performed to associate the digital map with the road name address map. After geometric calibration using the block-based ICP (Iterative Closest Point) method, multi-scale corresponding pair searching with hierarchical clustering was applied to detect the multi-type match. The accuracy assessment showed that the proposed method is more than 95% accurate and the matched building layer of the two maps is useful for the integrated application and fusion. In addition, the use of the road name address map, which carries the latest and most frequently renewed data, enables cost-effective updating of new buildings.

A Study on clustering method for Banlancing Energy Consumption in Hierarchical Sensor Network (계층적 센서 네트워크에서 균등한 에너지 소비를 위한 클러스터링 기법에 관한 연구)

  • Kim, Yo-Sup;Hong, Yeong-Pyo;Cho, Young-Il;Kim, Jin-Su;Eun, Jong-Won;Lee, Jong-Yong;Lee, Sang-Hun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.9
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    • pp.3472-3480
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    • 2010
  • The Clustering technology of Energy efficiency wireless sensor network gets the energy efficiency by reducing the number of communication between sensor nodes and sink node. In this paper, First analyzed on the clustering technique of the distributed clustering protocol routing scheme LEACH (Low Energy Adaptive Clustering Hierarchy) and HEED (Hybrid, Energy-Efficient Distributed Clustering Approach), and based on this, new energy-efficient clustering technique is proposed for the cause the maximum delay of dead nodes and to increase the lifetime of the network. In the proposed method, the cluster head is elect the optimal efficiency node based on the residual energy information of each member node and located information between sink node and cluster node, and elected a node in the cluster head since the data transfer process from the data been sent to the sink node to form a network by sending the energy consumption of individual nodes evenly to increase the network's entire life is the purpose of this study. To verify the performance of the proposed method through simulation and compared with existing clustering techniques. As a result, compared to the existing method of the network life cycle is approximately 5-10% improvement could be confirmed.

Factors Influencing on Health Promoting Behavior of Community-dwelling Older Adults (지역사회 거주 노인의 건강증진행위에 영향을 미치는 요인)

  • Jang, Ji-Hye;Shin, Yong Soon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.2
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    • pp.460-469
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    • 2020
  • The purpose of this study was to examine the predictive factors for health promotion behaviors of older adults in rural areas. A theoretical substruction was constructed to test hypothetical models based on Pender's health promotion model. The data was collected from 199 older adults aged 65 years or older, who resided in G city, by using a structured questionnaire. The questionnaires contained items on individual characteristics, health literacy, self efficacy and health promoting behavior. The data was analyzed with a t-test, ANOVA, Pearson's correlation coefficients and hierarchical multiple regression analysis using SPSS 20.0 for Windows. The predictive factors for the health promotion behavior were the number of health information channels (β=.16, p=.031) and self efficacy (β=.53, p<.001). The total explanatory power of these factors was 30.8%. A nursing intervention plan for improving health promoting behaviors of older adults should be developed and applied, with a focus on self-efficacy and health information channels. Further longitudinal studies are needed to help confirm relevant measurement of the level of health promoting behaviors of older adults.

Relationship between Life Stress, Depression and Smartphone addiction in Nursing Students: Mediating Effects of Experiential Avoidance (간호대학생의 생활스트레스가 우울과 스마트폰 중독에 미치는 영향: 경험회피의 매개효과)

  • Bong, Eun-Ju;Kim, Yun-Kyoung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.7
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    • pp.121-129
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    • 2017
  • The purpose of this study was to examine the mediating effects of experiential avoidance on the relationships between life stress, depression and smartphone addiction in nursing college students. This study was conducted using a descriptive survey design. Participants were 283 nursing college students attending freshmen and sophomore yearsat one university in Jeollanam-do. Data were collected from September 1 to 15, 2015 using self-report questionnaires. Data were analyzed using descriptive statistics, Pearson's correlation coefficient, hierarchical regression and Sobel test with SPSS 21.0. There were significant positive correlations between life stress, depression, smartphone addiction and experiential avoidance. Experiential avoidance partially mediated the relationship between life stress and depression of nursing students. Additionally, experiential avoidance partially mediated the relationship between their life stress and smartphone addiction. The results show that experiential avoidance plays a key role in psychopathology and grows with depression and smartphone addiction. Based on the present findings, nursing interventions should be developed to decrease experiential avoidance, with additional consideration towards the relationship between life stress and experiential avoidance, in order to prevent depression and smartphone addiction among nursing college students.

The Influential Factors of Health-Related Quality of Life in Service Employees (서비스종사자의 건강관련 삶의 질의 영향요인)

  • Yoon, Yo-Sang
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.7
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    • pp.365-374
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    • 2017
  • This study examined the effects of the demographic and health characteristics and chronic diseases on the health-related quality of life in service employees. From January 1, 2013 to December 31, 2014, this study analyzed the data on 607 service employees based on the 2nd data of the 6th National Health and Nutrition Examination Survey with at-test, ANOVA, and hierarchical regression analysis use of SPSS. The results of the analysis showed that the quality of Life in women was lower (${\beta}=-.074$, p=.050) than that of men, and the older the subjects were, the lower their quality of life(${\beta}=307$, p=.000). Regarding the subjective health status, there was a significant increase in the "very Poor"(${\beta}=186$, p=0.027) and "good"(${\beta}=196$, p=.001) status. The quality of life improved with increasing activity (${\beta}=-0.222$, p=0.000)). Some of the subjects perceived "high stress" (${\beta}=-0.123$, p=0.003) and the others perceived "low stress"(${\beta}=-0.176$, p=0.000). The less they perceived stress, the higher their quality of life. The factors explained 24.6% of the health-related quality of life of the subjects. Therefore, to improve health-related quality of life of service employees, more activity opportunities should be given, the subjective health status should be positively perceived and psychological measures to decrease the level of stress should be developed.