• Toxicological Research
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• v.26 no.2
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• pp.83-93
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• 2010

Since it was first observed in late 1970s that human cancers often had decreased manganese superoxide dismutase (MnSOD) protein expression and activity, extensive studies have been conducted to verify the association between MnSOD and cancer. Significance of MnSOD as a primary mitochondrial antioxidant enzyme is unquestionable; results from in vitro, in vivo and epidemiological studies are in harmony. On the contrary, studies regarding roles of MnSOD in cancer often report conflicting results. Although putative mechanisms have been proposed to explain how MnSOD regulates cellular proliferation, these mechanisms are not capitulated in epidemiological studies. This review discusses most recent epidemiological and experimental studies that examined the association between MnSOD and cancer, and describes emerging hypotheses of MnSOD as a mitochondrial redox regulatory enzyme and of how altered mitochondrial redox may affect physiology of normal as well as cancer cells.

• Asia-Pacific Journal of Business
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• v.12 no.3
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• pp.271-280
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• 2021

Purpose - This research aims to investigate the influence of social exclusion on conspicuous consumption. Specifically this research suggested that the influence of social exclusion on conspicuous consumption would be different depending on consumers' psychological characteristics such as internal attribution tendency and self-esteem. Design/methodology/approach - The experiment was conducted to verify hypotheses. 110 sample data were collected from the experiment and SPSS PROCESS Macro was used for data analysis. Findings - The result revealed that the interaction effect of social exclusion and internal attribution was significant. Specifically, social exclusion had on positive impact on conspicuous consumption for consumers with high level of internal attribution tendency. In addition, conspicuous consumption was pronounced for consumers having both high level of internal attribution and low level of self-esteem. Research implications or Originality - The result is expected to expand the research scope on social exclusion and conspicuous consumption, and provide practical implications for marketers.

• International Journal of Advanced Culture Technology
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• v.10 no.4
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• pp.529-535
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• 2022

The purpose of this study is to identify the factors that influence the revisit of jewelry stores. The purpose od this study is to find specific factors that affect product and store satisfaction. The theoretical studies on product quality, perceived quality guarantee, product design, product price, sales promotion, product diversity, store area, store re-visit intent were reviewed. Based on this background, research hypotheses were established. A total of 80 questionnaires were distributed to verify the hypothesis of the study, and 64 were finally used for the analysis. SPSS 24.0 was used for hypothesis verification. The results of this study showed that product quality, perceived product guarantee, product design, and product price had positive influence on product satisfaction. On the other hand, sales promotion, product diversity and store interior were found to have positive influence on store satisfaction. Furthermore, product and store satisfaction were found to have a positive and significant effect on revisit Jewelry Stores.

• Journal of East-West Nursing Research
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• v.27 no.2
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• pp.95-103
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• 2021

Purpose: This study was conducted to investigate the structural equation modeling of retention intention in nurses. Methods: A total of 210 nurses from three hospitals in B city, South Korea participated in this study. A structural equation model was constructed to verify the fitness of this model. Data were analyzed using SPSS 20.0 and AMOS 21.0 programs. Results: The hypothetical model appeared to fit the data. Three of the selected six hypotheses for the hypothetical model were statistically significant. The retention intention model showed significant direct effects for job crafting and job demands and indirect effects for relation oriented culture, which explained 28% of the variation in nurses' retention intention. Conclusion: We found that nurses' job crafting behavior and job demands had significant influences on retention intention and relation oriented culture which affected by the factors job crafting.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.525-538
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• 2019

The objective of this study is to verify the effects of the Taekwondo athletes' sports participation motivation on the achievement orientation and achievement behaviors and to verify the mediating effect of the achievement orientation. The subjects of this study were 256 athletes' in Honam. The questionnaire data were utilized for verification of hypotheses through structural equation model analysis. As a result of verification, Taekwondo athletes' sports participation motivation presented a statistically significant positive correlation with their achievement orientation. The achievement orientation showed a significant positive effect on the achievement behaviors with the mediating effect of the achievement orientation. Finally, the result of this study is meaningful in a point of view of the effect of Taekwondo athletes' sports participation motivation on the achievement orientation and achievement behaviors. It is worthwhile to verify the mediation effect of achievement orientation.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.15 no.2
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• pp.203-218
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• 2004

The purpose of this study was to identify the selection attributes of family restaurants according to the consumers' use types with the main focus on the family restaurants in the Busan. Area Nine factors in total were generated in order to verify the hypotheses of this study through the factor analysis of the selection attributes of the family restaurants. The differences between the various selection factors for the family restaurants according to the decision-making, the preparation period, and the visiting frequency through the analysis of the diffcrence from the selection factors for the family restaurants according to the use types.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.16 no.1
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• pp.93-112
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• 2005

The purpose of this study was to identify the selection attributes of family restaurants according to the consumers' use types with the main focus on the family restaurants in Busan Area. Nine factors in total were generated in order to verify the hypotheses of this study through the factor analysis of the selection attributes of the family restaurants. The differences between the various selection factors for the family restaurants according to the decision-making, the preparation period, and the visiting frequency through the analysis of the difference from the selection factors for the family restaurants according to the use types.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.34C no.10
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• pp.67-75
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• 1997

A design for a system to perform rapid recognition of three dimensional objects is presented, focusing on efficient indexing. In order to retrieve the best matched models without exploring all possible object matches, we have employed a bayesian framework. A decision-theoretic measure of the discriminatory power of a feature for a model object is defined in terms of posterior probability. Detectability of a featrue defined as a function of the feature itselt, viewpoint, sensor charcteristics, nd the feature detection algorithm(s) is also considered in the computation of discribminatory power. In order to speed up the indexing or selection of correct objects, we generate and verify the object hypotheses for rfeatures detected in a scene in the order of the discriminatory power of these features for model objects.

• Asia pacific journal of information systems
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• v.16 no.4
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• pp.49-70
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• 2006

In recent, Open markets are booming up rapidly. Open markets are one of the online marketplaces which mainly concentrated on spot transactions of commodities, and are differentiated from integrated internet shopping stores with market participants, trading rules and so on. This study investigated on factors affecting satisfaction with and preference on open markets by comparing open markets with integrated internet shopping stores, and aimed to figure out the reasons why open markets are growing up so rapidly and to forecast the future of open markets. To investigate the factors affecting buyers' satisfaction with and preference on internet shopping channel. I extracted several factors through literature reviews. The factors include the pros (cost saving and time saving), the cons (security concerns and privacy concerns), and decision making support suggested by Simon's research as well. Then, I constructed research model and related research hypotheses. To verify research hypotheses, I conducted field survey targeting on online buyers and analyzed research data using structural equation model. According to data analysis result, open markets have competitive advantages over integrated internet shopping stores with respect to cost saving, time saving, and decision making support. However, online buyers are still concerning privacy issues within open markets. In summary, buyers are considering that open markets are cheaper, faster, and more efficient internet shopping channel, compared with integrated internet shopping stores. However, open markets are required to dedicate to lessen buyers' privacy concerns to rebirth as more satisfying and preferable internet shopping channel and to prosper in the future.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.8
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• pp.425-433
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• 2020

This paper aims to develop a conceptual framework for evaluating the impact of motivational factors on the work results of lecturers at Vietnam National University, Hanoi (VNU), one of two leading multidisciplinary and multi-sectoral national universities in Vietnam. This study has considered wages and other benefits (WB), training and development (TD), working environment (WE) and working motivation (WM) as motivational factors, and proposed a structural model of the impact of motivational factors on the work results of lecturers at VNU. The empirical analysis used data from the survey data of 321 university lecturers. Comprehensive, valid, and reliable tools (SPSS 26 and SmartPLS 3.0 software) are used to evaluate rigorous statistical tests including convergence validity, discriminatory validity, reliability, and average variance extracted to analyze and verify the gathered data, and the hypotheses developed. The result of path analysis shows that four motivational factors constitute a structured system with different degrees of influence on the work results of lecturers. There is also a positive relationship between the motivational factors and the work results of lecturers. As a result, it can be concluded that all hypotheses developed are supported. Several recommendations are further suggested to improve the performance of lecturers at VNU.