Measuring Retailer Equity

Han,Sang-Lin,Baek,Mi-Young 한국상품학회 2010 商品學硏究 Vol.28 No.6

The main purpose of this study is to test empirically that used theories of retailer equity and tool of retailer equity about the two of major distribution channels - discount store and on-line shopping. We used indices from Arnett, Laverie and Meiers (2003) and those factors are retailer loyalty, name awareness, service quality, retailer associations, and perceived value. For this study, we collected data from major discount stores and on-line shopping sites in South Korea. As a result, only retailer loyalty influences on retailer equity in discount store and retailer loyalty and product quality influence retailer equity. Our paper is organized as follows. First, we discussed about retailer equity and the underlying dimensions of retailer equity. Second, based on the research of Arnett, Laverie and Meiers (2003), we demonstrate a indexes of retailer equity using regression analysis for comparing discount store and on-line shopping. Third, we discuss some managerial implications of this research for retail practitioners and suggest for future research.

Piezo/triboelectric nanogenerators based on 2-dimensional layered structure materials

Han, Sang A,Lee, Jaewoo,Lin, Jianjian,Kim, Sang-Woo,Kim, Jung Ho Elsevier 2019 Nano energy Vol.57 No.-

<P><B>Abstract</B></P> <P>Recently, research on energy harvesting has attracted great attention as a solution to energy depletion and environmental problems due to the use of fossil fuels such as coal, natural gas, and oil. To be precise, harvesting technology converts the energy sources around us such as solar, heat, and mechanical energy into electrical energy. It has the advantage of being able to supply and sustain energy on a permanent basis, rather than being non-renewable, and it is also eco-friendly. Among the various energy harvesting techniques, nanogenerators based on piezoelectric and triboelectric phenomena can generate electrical energy based on mechanical energy sources, which are usually ubiquitous, there are no restrictions due to weather, time, or space, and this technology is also user-friendly. Recently, two-dimensional (2D) materials have been chosen for implementing piezo/triboelectric nanogenerators. The 2D materials have transparency, flexibility, and a high surface-to-volume ratio. Owing to the very low thickness of the atomic unit, a stacking structure using 2D materials can be also made to form a very thin device, which is applicable for insertion into the body or wearable electronic devices. In this review, we summarize the characteristics and research results on piezo/triboelectric energy harvesters based on 2D layered structure materials.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The characteristics of 2D materials are transparency, flexibility, and high surface-to-volume ratio. </LI> <LI> With these advantages, 2D materials with piezo/triboelectric potential can be applied as various electronic devices. </LI> <LI> We summarize the research results on piezo/triboelectric energy harvester based on 2D layered structure materials. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

EFFFECTS OF SERVICE QUALITY ON CUSTOMER LOYALTY AND WORD-OF-MOUTH IN RETAIL SETTING: MEDIATING ROLES OF RELATIONAL CHARACTERISTICS

Sang Lin Han 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

The quality of customer service has been one of the most representative determinants of retailers’ sustainable competitiveness. Since Parasuraman et al. (1988) introduced the service quality instrument, called SERVQUAL, many studies have used SERVQUAL to measure service quality in various domains. However, since SERVQUAL was originally developed to measure general service quality, it didn’t fully consider the underlying characteristics of a specific industry such as retailing. Recently, as retail industry is becoming more competitive, there is a general agreement that the most important retailing strategy for creating competitive advantage is the delivery of high service quality. From the retail manager’s perspective, the level of service quality is highly correlated with the level of customer loyalty and the customer’s favorable word-of-mouth behavior. In this sense, most retail managers would be very interested in the question of how to increase their customer loyalty rate and, therefore, to elaborate this question in more detail, service quality study in a retail setting would be very important. Current measures of service quality, including SERVQUAL, do not adequately capture customers’ perceptions of service quality for retail stores such as department stores or general discount stores. The main objective of this study is to investigate the usefulness and applicability of the different methods, including SERVQUAL, in measuring the service quality of retail environment and their relationships to customer loyalty and word-of-mouth behavior. By exploring the suitability of each different measurement method for retail service quality, this study enhances the understanding of the major dimensions of retail service quality and the analysis of the effect of service quality on customer loyalty and word-of-mouth behavior.

Why Consumers Use Mobile Commerce? - International Comparative Study of M-Commerce Model

Han, Sang-Lin,Nguyen, T.P. Thao,Nguyen, V. Anh Korean Marketing Association 2016 ASIA MARKETING JOURNAL Vol.18 No.3

Development of information and communication technology is changing commerce environment and consumer purchasing behavior has also been changed. Globalization is becoming increasingly prevalent in the world today and many factors such as culture, politics, and economics may influence the applicability of management theories. Concurrently, corporate managers are faced with the challenge of offering usable and useful applications to the local users. Besides, many scholars strongly support that the criteria for M-Commerce adoption in developing countries are different from that of developed countries, due to cultural, security, social, political, economic, and technological aspects. This research tried to investigate the differences on the adoption of mobile commerce between developed and developing countries. In this study, the motivation for studying advanced mobile phone services adoption in the South Korea and Viet Nam is presented. Second, M-Commerce adoption model is introduced as a starting point for the research model. We then integrate price, personal innovativeness, quality dimension and perceived of playfulness into our model. Next, we describe our method and report the results of our analysis. The paper concludes with a discussion of the results from both the South Korea and Viet Nam with implications.

ROLE OF SERVICE QUALITY IN B2B RELATIONSHIP PERFORMANCE: SCALE DEVELOPMENT AND B-SERVQUAL MODEL

Sang-Lin Han,Seong-Ho Lee 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.9

Even in the business-to-business(B2B) markets, service quality is becoming very important factor which determines success or failure of the long-term business relationship. Considering that most previous researches about service quality were conducted in the business-to-consumer (B2C) area, this study conceptualizes the various quality aspects of service that are considered in B2B market and proposes B-SERVQUAL which is the detailed quality measurement scale of B2B service. Our study aims to reveal how such recognized service quality influences on realizing the relationship between the customer and the supplier. We began this research with two main objectives: (1) develop the service quality scale to facilitate assessments of B2B service quality and (2) investigate the structural model which deals with the relation between the service quality and business relationship performance. Service quality has a positive effect on relationship bonding, indicating that the superior service quality of service providers leads relationship bonding with buyers. Five dimensions considered in this study bring not only structural bond but also the social bond that refers to the emotional bonding. Especially, we assumed that the empathy quality, a human factor in service quality, plays an important role in binding sellers and buyers personally and emotionally. Technical quality and the process quality related to service delivery are closely associated with the technical level of the service provided, so the service quality structurally binds the relationship between companies. In addition, service quality has a greater effect on structural bond than social bond, which implies that service quality is emphasized as core elements that bring economic, strategic, technical, and organizational benefits in B2B trading rather than be seen as a catalyst to accelerate trading or supplementary elements to the products. Structural bond in relationship bonding is an antecedent of social bond. Relationship bonding has been studied in 2 categories traditionally. This study could identify a casual relation between them. The findings from the study demonstrate that the structural bond is developed when clear economic and managerial advantages exist for buyers, and then the social bond is formed based upon this. In other words, structural bond is a positive predictor of social bond or emotional bond. As suggested earlier, service quality has a greater effect on structural bond than social bond, which supports a structural casual relation in which the structural bond is accomplished first through service and then, based upon this, social bond is accomplished. Commitment appeared to be an important factor that has a positive effect on relationship performance, which demonstrates the experience and the reduction of management cost through commitment is the antecedent that brings the relationship performance which is defined as the degree of the effectiveness and efficiency from mutual organization exchange activities. Managerial implications and limitations of the study were also discussed in detail.

TMEM16F/ANO6, a Ca²⁺-activated anion channel, is negatively regulated by the actin cytoskeleton and intracellular MgATP

Lin, Haiyue,Roh, Jaewon,Woo, Joo Han,Kim, Sung Joon,Nam, Joo Hyun Elsevier 2018 Biochemical and biophysical research communication Vol.503 No.4

<P><B>Abstract</B></P> <P>Anoctamin 6 (ANO6/TMEM16F) is a recently identified membrane protein that has both phospholipid scramblase activity and anion channel function activated by relatively high [Ca<SUP>2+</SUP>]<SUB>i</SUB>. In addition to the low sensitivity to Ca<SUP>2+</SUP>, the activation of ANO6 Cl<SUP>−</SUP> conductance is very slow (>3–5 min to reach peak level at 10 μM [Ca<SUP>2+</SUP>]<SUB>i</SUB>), with subsequent inactivation. In a whole-cell patch clamp recording of ANO6 current (I<SUB>ANO6,w-c</SUB>), disruption of the actin cytoskeleton with cytochalasin-D (cytoD) significantly accelerated the activation kinetics, while actin filament-stabilizing agents (phalloidin and jasplakinolide) commonly inhibited I<SUB>ANO6,w-c</SUB>. Inside-out patch clamp recording of ANO6 (I<SUB>ANO6,i-o</SUB>) showed immediate activation by raising [Ca<SUP>2+</SUP>]<SUB>i</SUB>. We also found that intracellular ATP (3 mM MgATP in pipette solution) decelerated the activation of I<SUB>ANO6,w-c</SUB>, and also prevented the inactivation of I<SUB>ANO6,w-c</SUB>. However, the addition of cytoD still accelerated both activation and inactivation of I<SUB>ANO6,w-c</SUB>. We conclude that the actin cytoskeleton and intracellular ATP play major roles in the Ca<SUP>2+</SUP>-dependent activation and inactivation of I<SUB>ANO6,w-c</SUB>, respectively.</P> <P><B>Highlights</B></P> <P> <UL> <LI> ANO6 current shows sluggish activation even with high [Ca<SUP>2+</SUP>]<SUB>i</SUB>, and inactivation. </LI> <LI> Actin cytoskeleton disruption accelerate both activation and inactivation of ANO6. </LI> <LI> Intracellular MgATP further delays ANO6 activation, and prevent inactivation. </LI> <LI> The effects of MgATP on ANO6 were overcome by actin inhibitor, cytochalasin-D. </LI> <LI> State actin cytoskeleton is crucial for determining ANO6 activity in intact cells. </LI> </UL> </P>

Nucleophosmin modulates the alleviation of atopic dermatitis caused by the marine-derived compound dihydroaustrasulfone alcohol

Han-Chun Hung,Chien-Wei Feng,Yen-You Lin,Chun-Hong Chen,Kuan-Hao Tsui,Wu-Fu Chen,Chieh-Yu Pa,Jyh-Horng Sheu,Chun-Sung Sung,Zhi-Hong Wen 생화학분자생물학회 2018 Experimental and molecular medicine Vol.50 No.-

Atopic dermatitis (AD) is a chronic inflammatory skin disease, and its prevalence is increasing. AD usually elicits skin barrier dysfunction, dry skin and itching. As the mechanisms of AD remain unknown, there is an urgent need to find effective therapies. Because of the diversity and complexity of marine environments, the discovery of drugs from marine organisms as novel therapeutic agents for human diseases has seen renewed interest. Dihydroaustrasulfone alcohol (WA-25), the synthetic precursor of austrasulfone, which is a natural product isolated from a Formosan soft coral, has been shown to possess many therapeutic effects in our previous studies. However, the detailed mechanisms and therapeutic effects of WA-25 on AD are incompletely understood. We performed in vitro and in vivo studies to examine the effects of WA-25 on AD. We showed that WA-25 blocks inflammation and oxidative stress. Simultaneously, we also found that WA-25 reduces the AD scores and AD-induced transepidermal water loss (TEWL), scratching behavior, and alloknesis. WA-25 is more effective in cases of AD than are the drugs that are currently used clinically. Importantly, we also found that when nucleophosmin (NPM) was inhibited or when its expression was reduced, the anti-inflammatory and anti-AD effects of WA-25 were blocked. These data suggest that NPM plays dual roles in inflammation and AD. Overall, these results suggest that WA-25 is a potential anti-inflammatory and AD therapeutic agent that is modulated by NPM.

ROLE OF SERVICE QUALITY IN B-TO-B RELATIONSHIP PERFORMANCE: SCALE DEVELOPMENT AND B-SERVQUAL MODEL

Sang-Lin Han,Seong Ho Lee 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

Even in the business-to-business markets, service quality is becoming very important factor which determines success or failure of the long-term business relationship. Our study aims to reveal how such recognized B-to-B service quality influences on realizing the relationship between the customer and the supplier. We began this research with two main objectives: (1) develop the service quality scale to facilitate assessments of B-to-B service quality and (2) investigate the structural model which deals with the relation between the service quality and business relationship performance. Considering that most previous researches about service quality were conducted in the business-to-consumer(B-to-C) area, this study conceptualizes the various quality aspects of service that are considered in B-to-B market and proposes B-SERVQUAL model which is the detailed quality measurement scale of B-to-B service. We developed a measurement scale called B-SERVQUAL for B-to-B service quality and tested research hypotheses and structural model. We found that service quality has a positive effect on relationship bonding, indicating that the superior service quality of service providers leads relationship bonding with buyers. Five dimensions considered in this study bring not only structural bond but also the social bond that refers to the emotional bonding. Relationship bonding has a positive effect on commitment. Relationship commitment appeared to be an important factor that has a positive effect on relationship performance, which demonstrates the reduction of management cost through commitment. This study reflected the economic and convenience aspects of services that haven’t been highlighted in the previous studies in the business marketing area. This study has academic implications in that it reflected the economic aspects of services, which have been dealt with conceptually by some scholars such as profitability, productivity, and cost. From the viewpoint of B2B service providers, the B-SERVQUAL proposed in this study will be helpful guide for service providers to specifically identify the customers’ needs and manage their service quality in the business market.

ER-stress-induced transcriptional regulation increases protein synthesis leading to cell death

Han, Jaeseok,Back, Sung Hoon,Hur, Junguk,Lin, Yu-Hsuan,Gildersleeve, Robert,Shan, Jixiu,Yuan, Celvie L.,Krokowski, Dawid,Wang, Shiyu,Hatzoglou, Maria,Kilberg, Michael S.,Sartor, Maureen A.,Kaufman, Ra Nature Publishing Group, a division of Macmillan P 2013 Nature cell biology Vol.15 No.5

Protein misfolding in the endoplasmic reticulum (ER) leads to cell death through PERK-mediated phosphorylation of eIF2α, although the mechanism is not understood. ChIP-seq and mRNA-seq of activating transcription factor 4 (ATF4) and C/EBP homologous protein (CHOP), key transcription factors downstream of p-eIF2α, demonstrated that they interact to directly induce genes encoding protein synthesis and the unfolded protein response, but not apoptosis. Forced expression of ATF4 and CHOP increased protein synthesis and caused ATP depletion, oxidative stress and cell death. The increased protein synthesis and oxidative stress were necessary signals for cell death. We show that eIF2α-phosphorylation-attenuated protein synthesis, and not Atf4 mRNA translation, promotes cell survival. These results show that transcriptional induction through ATF4 and CHOP increases protein synthesis leading to oxidative stress and cell death. The findings suggest that limiting protein synthesis will be therapeutic for diseases caused by protein misfolding in the ER.

Why Consumers Use Mobile Commerce? - International Comparative Study of M-Commerce Model

Han, Sang-Lin,Nguyen, T.P. Thao,Nguyen, V. Anh Korean Marketing Association 2016 ASIA MARKETING JOURNAL Vol.18 No.3

Development of information and communication technology is changing commerce environment and consumer purchasing behavior has also been changed. Globalization is becoming increasingly prevalent in the world today and many factors such as culture, politics, and economics may influence the applicability of management theories. Concurrently, corporate managers are faced with the challenge of offering usable and useful applications to the local users. Besides, many scholars strongly support that the criteria for M-Commerce adoption in developing countries are different from that of developed countries, due to cultural, security, social, political, economic, and technological aspects. This research tried to investigate the differences on the adoption of mobile commerce between developed and developing countries. In this study, the motivation for studying advanced mobile phone services adoption in the South Korea and Viet Nam is presented. Second, M-Commerce adoption model is introduced as a starting point for the research model. We then integrate price, personal innovativeness, quality dimension and perceived of playfulness into our model. Next, we describe our method and report the results of our analysis. The paper concludes with a discussion of the results from both the South Korea and Viet Nam with implications.