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Kevin LOE(Kevin LOE ),Aniq TASIA(Aniq TASIA ),Ricardo INDRA(Ricardo INDRA ),La MANI(La MANI ) 한국유통과학회 2022 유통과학연구 Vol.20 No.9
Purpose: This study analyzes the effects of variables affecting e-satisfaction and e-loyalty in e-commerce. Research design, data, and methodology: A survey was conducted to 384 Indonesia online shopping mobile application users. The questionnaire construct was designed based on several independent variables, such as application attractiveness, application functionality, and customer service on e-satisfaction and e-loyalty. E-satisfaction was positioned as an intervening variable to determine the effect on e-loyalty. Results: Application attractiveness, application functionality, and customer service shown positive effect on e-satisfaction in online shopping mobile application. At the same time, e-satisfaction also affected e-loyalty significantly as referred in previous studies. However, application attractiveness, while showed positive effect on e-satisfaction, in contrary with previous study does not showed very significant effect. Conclusion: Application functionality significantly influences users satisfaction compared to application attractiveness. E-satisfaction mediates as a factor between visual design, information access, and transaction in online shopping mobile application, which stimulates user loyalty. The study findings’ can be a reference for companies to create and maintain users’ satisfaction and loyalty via different aspects of mobile application. Further research should be conducted on other field of study as the industry has different aspects that affects user loyalty.
Kevin Moncion(Kevin Moncion ),Letizia Gardin(Letizia Gardin ),Jane Lougheed(Jane Lougheed ),Kristi Adamo(Kristi Adamo ),Patricia E. Longmuir(Patricia E. Longmuir ) 사피엔시아 2022 Exercise Medicine Vol.6 No.-
Objectives: This exploratory mixed-methods study explored the barriers to physical activity, daily physical activity and submaximal exercise capacity among children with and at risk for cardiomyopathy and children with atrial septal defects. Methods: The study followed a convergent parallel mixed methodology design. Semi-structured interviews explored physical activity barriers. Seven-day accelerometry assessed moderate-to-vigorous physical activity, and an intermittent cardiopulmonary exercise test measured submaximal exercise capacity. Results: Twenty children, including 5 with cardiomyopathy (n=2 females, 14.2 ± 2.7 years old), 7 who were genotype-positive phenotype-negative for cardiomyopathy (n=5 females, 10.6 ± 3.3 years old) and 8 with atrial septal defects (n=4 females, 9.4 ± 3.8 years old) were recruited. Children with cardiomyopathy reported disease-specific physical activity barriers, while children who were genotype-positive phenotype-negative perceived barriers related to lack of time, parent support or activity motivation. The average daily moderate-to-vigorous physical activity was less than the recommended 60-minutes/day (n=20, mean 48.1 ± 18.0 minutes). Children with cardiomyopathy participated a median of 141.2 [interquartile range (IQR): 98.8) minutes of light-intensity physical activity and a median of 55.6 (IQR: 34.6) minutes of moderate-to-vigorous physical activity. The average submaximal exercise capacity was low (n=16, 25.2 ± 5.7 mL/kg/min). Estimated submaximal exercise capacity, including metabolic equivalent (4.5 ± 3.1 METs), respiratory exchange ratio (median = 1.0, IQR: 0.09) and ratings of perceived exertion (median = 7, IQR: 5) at peak exercise suggest that children with cardiomyopathy appear to have the exercise capacity to participate in low-to-moderate intensity activities. Conclusions: These novel data suggest that a diagnosis of cardiomyopathy may not preclude children from participating in a healthy, active lifestyle. However, they perceive disease-specific physical activity barriers and may require support to optimize their level of participation for optimal health.
Lexical Bundles in the Argumentative Essays of Vietnamese and American Student Writers
Kevin Parent(Kevin Parent ) 한국영어어문교육학회 2024 영어어문교육 Vol.30 No.1
This study examines lexical bundles used in argumentative writings by Vietnamese EFL university students-L2 learners and American university students-L1 learners to see how two groups use bundles and identify problems which L2 learners face. Two corpora including writings by L2 and L1 learners are collected. By using Biber et al.’s structural taxonomy (1999, 2004) and Hyland’s functional framework (2008a), we analyse the structures and functions of the four-word bundles used by the two group writings to see any differences. Compared with L1 learners, L2 learners use a wider range of bundles. Regarding structures, L2 learners overuse VP-based bundles, while L1 learners use VP, NP and PP-based bundles flexibly. For functions, L1 learners prefer to use participant-oriented bundles, while L2 learners tend to employ researchoriented bundles. The text-oriented bundles are the least commonly occurring ones in the two groups’ essays. To understand how L2 learners overuse bundles in their writings, a qualitative method is used to examine each essay. Some underlying explanations for the overuse might be side effects of teaching and lack of knowledge of the bundle. A pedagogical implication of teaching L2 learners to use bundles in writing class is suggested to help their writing more convincingly and academically.
Kevin Mets,Reinhilde D’hulst,Chris Develder 한국통신학회 2012 Journal of communications and networks Vol.14 No.6
A potential breakthrough of the electrification of the vehicle fleet will incur a steep rise in the load on the electrical power grid. To avoid huge grid investments, coordinated charging of those vehicles is a must. In this paper, we assess algorithms to schedule charging of plug-in (hybrid) electric vehicles as to minimize the additional peak load they might cause. We first introduce two approaches, one based on a classical optimization approach using quadratic programming, and a second one, market based coordination,which is a multi-agent system that uses bidding on a virtual market to reach an equilibrium price that matches demand and supply. We benchmark these two methods against each other, as well as to a baseline scenario of uncontrolled charging. Our simulation results covering a residential area with 63 households show that controlled charging reduces peak load, load variability, and deviations from the nominal grid voltage.
Kevin K. Byon,Thomas A. Baker Iii,최영환(Young Hwan Choi) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.46
본 연구의 목적은 대학내 스포츠클럽의 존립기간과 대학내 레크리에이션 프로그램 만족도간의 관계를 대한 서비스 품질의 매개역할에 관한 연구를 위한 것이다. 이와 같은 연구를 위해 미국의 남동지역 종합대학의 27개 스포츠 클럽으로부터 252명이 연구에 참여하였다. 위계적 선형모형(HLM) 분석결과 서비스 품질은 만족에 직접적으로 영향을 미친 반면, 스포츠 클럽의 운영기간은 서비스품질과 만족에 영향을 미치지 않았다. 논의 부분에서는 본 연구 결과의 해석과 함께 스포츠 경영학 분야에서 위계적 선형모형(HLM)의 적용의 타당성이 제시되었다.