• Title/Summary/Keyword: structural equation modeling(SEM)

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The acceptance of nuclear energy as an alternative source of energy among Generation Z in the Philippines: An extended theory of planned behavior approach

  • Zachariah John A. Belmonte;Yogi Tri Prasetyo;Omar Paolo Benito;Jui-Hao Liao;Krisna Chandra Susanto;Michael Nayat Young;Satria Fadil Persada;Reny Nadlifatin
    • Nuclear Engineering and Technology
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    • v.55 no.8
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    • pp.3054-3070
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    • 2023
  • Nuclear Power Plants (NPP) are widely utilized around the globe from different base forms as it is one of the most dependable renewable resources that technological advancements have offered. However, different perceptions of the usage of NPPs emerged from different generations. The purpose of this study was to investigate the acceptance of nuclear energy as an alternative source of energy among Generation Z in the Philippines by utilizing an extended Theory of Planned Behavior (TPB) approach. An online questionnaire which consisted of 31 items was distributed using a purposive sampling approach and 450 respondents of Generation Z voluntarily answered. Structural Equation Modeling (SEM) showed that the knowledge regarding NPP had significant effects on risk perception and benefit perception which subsequently led to subjective norms. In addition, perceived behavioral control and subjective norms had significant effects on behavioral intention which led to nuclear acceptance. Interestingly, the respondents perceived the benefit of NPP as slightly higher than the perceived risk. With these, it was clear that the commissioning Nuclear Power Plant must consider as an alternative source of electric energy in the Philippines. Moreover, this study is one of the first studies that investigated the acceptance of NPP among Generation Z. Lastly, the model could be a basis to strengthen the acceptance strategy of opening NPP among Generation Z, particularly in developing countries.

Effects of Intensive Care Experience on Post-Intensive Care Syndrome among Critical Care Survivors : Partial Least Square-Structural Equation Modeling Approach (집중치료 경험이 중환자실 생존자의 집중치료 후 증후군에 미치는 영향: PLS-구조모형 적용)

  • Young Shin, Cho;Jiyeon Kang
    • Journal of Korean Critical Care Nursing
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    • v.17 no.1
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    • pp.30-43
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    • 2024
  • Purpose : Post-intensive care syndrome (PICS) is characterized by a constellation of mental health, physical, and cognitive impairments, and is recognized as a long-term sequela among survivors of intensive care units (ICUs). The objective of this study was to explore the impact of intensive care experience (ICE) on the development of PICS in individuals surviving critical care. Methods : This secondary analysis utilized data derived from a prospective, multicenter cohort study of ICU survivors. The cohort comprised 143 survivors who were enrolled between July and August 2019. The original study's participants completed the Korean version of the ICE questionnaire (K-ICEQ) within one week following discharge from the ICU. Of these, 82 individuals completed the PICS questionnaire (PICSQ) three months subsequent to discharge from hospital. The influence of ICE on the manifestation of PICS was examined through Partial Least Squares-Structural Equation Modeling (PLS-SEM). Result : The R2 values of the final model ranged from 0.35 to 0.51, while the Q2 values were all greater than 0, indicating adequacy for prediction of PICS. Notable pathways in the relationship between the four ICE dimensions and the three PICS domains included significant associations from 'ICE-awareness of surroundings' to 'PICS-cognitive', from 'ICE-recall of experience' to 'PICS-cognitive', and from 'ICE-frightening experiences' to 'PICS-mental health'. Analysis found no significant moderating effects of age or disease severity on these relationships. Additionally, gender differences were identified in the significant pathways within the model. Conclusion : Adverse ICU experiences may detrimentally impact the cognitive and mental health domains of PICS following discharge. In order to improve long-term outcomes of individuals who survive critical care, it is imperative to develop nursing interventions aimed at enhancing the ICU experience for patients.

Relationship between gross primary production and environmental variables during drought season in South Korea (가뭄 기간 총일차생산량과 환경 변수 간 상관관계 분석)

  • Park, Jongmin;Lee, Dalgeun;Park, Jinyi;Choi, Minha
    • Journal of Korea Water Resources Association
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    • v.54 no.10
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    • pp.779-793
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    • 2021
  • Water stress and environmental drivers are important factors to explain the variance of gross primary production (GPP). Environmental drivers are used to generate GPP in Moderate Resolution Imaging Spectroradiometer (MODIS) algorithm and process-based model. However, MODIS algorithm only consider the vapor pressure deficit (VPD) data while the process-based biogeochemical model also uses limited data to express water stress. We compared the relationship between environmental drivers and GPP from eddy covariance method, MODIS algorithm, and Community Land Model 4 (CLM 4) simulation in normal years and drought years. To consider water stress specifically, we used VPD and evaporative fraction (EF). We evaluated the effects from environmental drivers and EF towards GPP products using the structural equation modeling (SEM) in South Korea. We found that GPP products from MODIS algorithm and model simulation results were not restricted from VPD data if VPD was underestimated. We also found that in the cropland area, irrigation effects can relieve VPD effects to GPP. However, GPP products derived from MODIS and CLM 4 had limitation to explain the irrigation effects to GPP. Overall, these results will enhance the understanding of GPP products derived from MODIS and CLM 4.

The Effects of Medical Service Utilizations on Life Satisfaction among the Elderly: Focusing on the Moderating Effects of the Presence of Chronic Illnesses (노년기 의료서비스 이용이 삶의 만족도에 미치는 영향: 만성질환 유무의 조절효과를 중심으로)

  • Jeon, Hae-Sook;Kahng, Sang Kyoung
    • 한국노년학
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    • v.31 no.4
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    • pp.1247-1263
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    • 2011
  • The rapidly aging society entails the increases of medical service utilizations among the elderly. Medical services utilized by the elderly influence their life satisfaction. However, little is known about the effects of medical service utilizations on life satisfaction. Much less is known about whether the effects of medical service utilizations on life satisfaction tend to vary by the presence of chronic health conditions. Including 3,944 individuals aged 65 and over who participated in the 3rd wave of Korean Welfare Panel Study, the current study aims to examine (1) the relationships between medical service utilizations and life satisfaction and (2) whether the effects of medical service utilizations on life satisfaction vary by the presence of chronic health conditions. Data were processed through structural equation modeling(SEM) and multi-group SEM. Results indicate that (1) levels of both outpatient and inpatient service utilizations are related to life satisfaction, whereas levels of health monitoring service utilizations are not and (2) the effects of medical service utilizations varied by the chronic health condition status of the elderly. These results indicate that, in order to enhance levels of life satisfaction, medical services should be strategically utilized by the elderly depending on their chronic health condition status. Based on the findings, we discussed implications for practice and policy, suggesting future research directions based on the limitations of the current study.

Dynamic instability response in nanocomposite pipes conveying pulsating ferrofluid flow considering structural damping effects

  • Esmaeili, Hemat Ali;Khaki, Mehran;Abbasi, Morteza
    • Structural Engineering and Mechanics
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    • v.68 no.3
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    • pp.359-368
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    • 2018
  • This paper deals with the dynamic stability of nanocomposite pipes conveying pulsating ferrofluid. The pipe is reinforced by carbon nanotubes (CNTs) where the agglomeration of CNTs are considered based on Mori-Tanaka model. Due to the existence of CNTs and ferrofluid flow, the structure and fluid are subjected to axial magnetic field. Based on Navier-Stokes equation and considering the body forced induced by magnetic field, the external force of fluid to the pipe is derived. For mathematical modeling of the pipe, the first order shear deformation theory (FSDT) is used where the energy method and Hamilton's principle are used for obtaining the motion equations. Using harmonic differential quadrature method (HDQM) and Bolotin's method, the motion equations are solved for calculating the excitation frequency and dynamic instability region (DIR) of the structure. The influences of different parameters such as volume fraction and agglomeration of CNTs, magnetic field, structural damping, viscoelastic medium, fluid velocity and boundary conditions are shown on the DIR of the structure. Results show that with considering agglomeration of CNTs, the DIR shifts to the lower excitation frequencies. In addition, the DIR of the structure will be happened at higher excitation frequencies with increasing the magnetic field.

Appearance-Related Consumption Behavior according to Interpersonal Relations and Masculinity - Mediated effect of Appearance Concern - (대인관계성향, 남성성유형에 따른 외모관련소비행동 연구 - 외모관심도의 매개효과 분석 -)

  • Lee, Hyun-Ok
    • Fashion & Textile Research Journal
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    • v.15 no.5
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    • pp.777-786
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    • 2013
  • This study identifies the influences of appearance-related consumption behavior according to interpersonal relations and masculinity examined through amediated effect of appearance concerns based on a structural study method. Five hypotheses were established to verify the relationships of interpersonal relations, masculinity and appearance-related consumption behavior. Questionnaires were administered to 201 males in their 20s to 50s living in Daegu South Korea. The SPSS 20.0 package utilized for data analysis included frequency analysis, factor analysis, correlation analysis, regression analysis and Cronbach's ${\alpha}$. This study utilized an Amos 21.0 program, a Confirmative Factor Analysis(CFA)and a Structural Equation Modeling(SEM). The results of the study are as follows: First, the appearance concern showed a partial mediation effect between measurement variables that verified the causal relationship of the structural model. Second, interpersonal relations showed a positive influence on masculinity. Third, masculinity showed a positive influence on the appearance concern. Fourth, masculinity had a positive influence on appearance-related consumption behavior. Fifth, interpersonal relations did not have a significant influence on appearance-related consumption behavior. Sixth, the appearance concern showed a positive influence on appearance-related consumption behavior. The findings of this study can influence a market segmentation strategy by predicting future emotional and new consumption markets strategies for male's appearance-related product.

Internal Structure of the Sense of Place for Parks that were aimed at Reenacting the Place Memory - Focusing on Seoul Park and Seonyudo Park - (장소기억의 재현을 주제로 조성된 서울숲, 선유도공원의 장소성 형성 구조 연구)

  • Im, Seungbin;Kwon, Yoonku;Jeong, Younhee;Hue, Younsun;Byeon, Jaesang;Choi, Hyungsuk
    • Journal of the Korean Institute of Landscape Architecture
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    • v.42 no.5
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    • pp.1-12
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    • 2014
  • Recently, the reenaction of place's memories that were considered sense of place based on its historical and structural characteristic were assumed important topics for recovering and making the park from industrial sites, such as factory, industrial complex, industrial city, labor residential development, landfill, etc., to the public all over the world. This research aimed to conduct some preliminary data for making the park's sense of place highly. So, after conducting the structural forms of sense of place for Seoul Forest and Seonyudo Park that were designed and built by considering its place memories actively, park planning and design implications that were considered its sense of place were suggested. The research results those were derived from the structural forms of sense of place for Seoul Forest and Seonyudo Park's are the following. First, the Structural Equation Modeling(SEM) on Seoul Forest and Seonyudo Park were determined that the natural-physical, artificial-physical, and experiential environmental factors' satisfaction of Seoul Forest and Seonyudo Park have an effect on forming the Sense of Place. In addition, the sense of place was affected by the willingness to visit. Second, according to its physical environment, the experiential factors, such as plays, exercises and etc., were more important relatively. Therefore, experiential factors should be considered significantly with physical factors to make the sense of place highly. Third, even the places were under similar category, the factors' and valuables' relative importance were changed. As the results of structural equation modeling said, specific valuables' related with each factors would be differentiated due to the places' characteristics. For example, the results were showed that natural-physical factor was more important than artificial-physical factor in Seoul Forest. On the other hand, artificial-physical factor was more important than the natural- physical factor. This research carries some significance for applying a quantitative research method(structural equation modeling) to various place to conduct the sense of place's structural model, for suggesting relative specific methods to make the sense of place, and for being a step forward to substance of sense of place. If further studies conduct focusing on various places to draw the forming models of sense of place that were based this research's analysis methods and results, those researches would contribute to make the urban place meaningful, characteristically and affectionately. Furthermore, those researches would contribute in making a humane and competitiveness city.

Antecedents of Student Loyalty Within Universities in North Sumatra Province, Indonesia

  • MULYONO, Hardi
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.12
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    • pp.491-500
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    • 2020
  • The purpose of this study was to analyze the antecedents of student loyalty which included Servicescape University, relationship quality, university image, and student satisfaction. The research was conducted in three universities with Islamic atmosphere under Al Washliyah Foundation in Medan, North Sumatra Province, Indonesia. Data analysis in this study includes descriptive analysis and Structural Equation Modeling (SEM). The results showed that: (1) Servicescape university influences university image, student satisfaction, but does not influence student loyalty; (2) Servicescape university through university image influences student loyalty, (3) Servicescape university through student satisfaction influences student loyalty, (4) Relationship quality influences university image, satisfaction Students, but does not influence student loyalty, (5) Relationship quality through university image influences student loyalty, (6) Relationship quality through student satisfaction influences student loyalty, (7) University image influences student loyalty, and (8). Student satisfaction influences student royalty. The findings of this study suggest that the antecedent of student loyalty in universities with Islamic atmosphere which was examined in this research includes four factors: Servicescape university, quality relationship, university image, and students' satisfaction.

The Effects of Parenting Behavior and Peer Interaction on Preschoolers' Externalizing Problem Behaviors (부모의 온정적 양육행동과 또래 상호작용이 유아의 외현화 문제행동에 미치는 영향)

  • Woo, Su Jung
    • Korean Journal of Childcare and Education
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    • v.12 no.2
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    • pp.41-55
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    • 2016
  • The purpose of this study was to examine the effects of parenting behavior and peer interaction on externalizing problem behaviors of preschoolers. The data of 953 49~55 month old preschoolers and their parents were extracted from the Korean Children Panel Survey of Child-Care Policy Research Institute(2012). This study was conducted with Structural Equation Modeling(SEM). The results of this study were as follows. First, parenting behavior had a direct influence on externalizing problem behaviors of preschoolers. Second, parenting behavior had a direct influence on preschoolers' peer interaction. Third, preschoolers' peer interaction had a direct influence on externalizing problem behaviors of preschoolers. Fourth, preschoolers' peer interaction had mediating effects on the relationship between parenting behavior and externalizing problem behaviors of preschoolers.

Micromechanical failure analysis of composite materials subjected to biaxial and off-axis loading

  • Ahmadi, Isa
    • Structural Engineering and Mechanics
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    • v.62 no.1
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    • pp.43-54
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    • 2017
  • In this study, the failure behavior of composite material in the biaxial and off-axis loading is studied based on a computational micromechanical model. The model is developed so that the combination of mechanical and thermal loading conditions can be considered in the analysis. The modified generalized plane strain assumption of the theory of elasticity is used for formulation of the micromechanical modeling of the problem. A truly meshless method is employed to solve the governing equation and predict the distribution of micro-stresses in the selected RVE of composite. The fiber matrix interface is assumed to be perfect until the interface failure occurs. The biaxial and off-axis loading of the SiC/Ti and Kevlar/Epoxy composite is studied. The failure envelopes of SiC/Ti and Kevlar/Epoxy composite in off-axis loading, biaxial transverse-transverse and axial-transverse loading are predicted based on the micromechanical approach. Various failure criteria are considered for fiber, matrix and fiber-matrix interface. Comparison of results with the available results in the litreture shows excellent agreement with experimental studies.