Automated Teller Machines (ATMs) is very important for improving the banking service quality that can increase customer satisfaction by helping them to enjoy safe and convenient access. The investigation in this study is implemented by surveying the level of satisfaction among customers who are doing transactions at Vietnamese banking branches. Based on the model of service quality with the selected five key factors of tangible, reliability, responsiveness, communication, and security, the author aims at exploring significant dimensions that have much impact on customers' satisfaction with banking services. The data are analyzed by using multiple statistical analyses including the analysis of exploratory factor, reliability, correlations, and multiple linear regressions. The results indicate that customer satisfaction has a positive impact on tangible and reliability factor, whereas responsiveness is the main cause of customer dissatisfaction. These findings make significant contributions to improve the service quality of bank payment cards in Ho Chi Minh city, Vietnam and to increasing competitiveness of the branches in the field of card self-services.

Glycerol dehydrogenase (GldA) from Escherichia coli is a Zn2+‐containing alcohol dehydrogenase which catalyzes the NAD+‐dependent oxidation of glycerol to dihydroxyacetone. In this study, GldA has been cloned, over‐expressed, and isolated by an affinity and an ion‐exchange chromatography. GldA shows a strong intrinsic fluorescence at 320 nm, when excited at 280 nm. The fluorescence intensity decreases in the presence of NAD+, NADH, and dihydroxyacetone, the substrate and products for GldA, which allows us to determine the dissociation constants for those molecules as 110.6 ± 5.0 μM, 9,1 ± 0.6 μM, 33.3 ± 2.3 mM, respectively. The dissociation constant for NAD+ was similar to the kinetic constant, KM. Guanosine‐5′‐diphosphate 3′‐diphosphate (ppGpp), accumulated in E. coli when starved for amino acids, nutrients, and phosphate, serves as a global regulator in replication, transcription, and translation. In this study, the fluorescence intensity of GldA also decreases in the presence of ppGpp and the dissociation constant for ppGpp is calculated as 108.9 ± 8.6 μM. ppGpp increases GldA activity with the half maximal activation at 33.1 ± 3.1 μM. On the contrary, GTP and GDP inhibit GldA, with the inhibition constants of 16.1 ± 1.1 mM and 10.6 ± 0.3 mM, respectively. Tris(hydroxymethyl)aminomethane serves as a competitive inhibitor against glycerol. GTP and GDP also bind to GldA with the dissociation constants of 60.0 ± 0.8 and 61.0 ± 1.3 μM, respectively. These results suggest that GTP and GDP bind to GldA as strongly as ppGpp but only ppGpp activates GldA. This study shows that ppGpp binds to GldA and activates its activity for the first time. It is also suggested that the strong intrinsic fluorescence of enzymes and their changes in the presence of various ligands can be utilized to measure the binding affinities for those ligands. The method described here is especially effective for bindings with the relatively lower affinities.

The main purpose of this study is investigating about Vietnam customer's behavior in term of impulsiveness and all related factors that have influences on the main variable by searching and reading the various previous studies in the field of Retailing and Consumer Behavior. To be more specific, this research employed a quantitative approach to find out the impact of six factors Sale Promotion, Presence of Family and Friends, Emotion, Money Available, Merchandise Display and Festival Season by using some analysis tools including descriptive statistics, reliability, factor analysis, correlations, and multiple regressions. Based on the findings of this research, Money Available and Emotion are the dimensions that eliminated while Sale Promotion is the factor that stands the highest influence on the Impulse Buying Behavior of customers. In general, numerous dimensions both internal and external have been analyzed with the aim of helping the researcher figure out an evaluation and judgments towards Impulse Purchasing as well as contributing to the knowledge of the world in term of customer behaviors. Finally, yet importantly, some recommendations have shown to guide the retailer to enhance their sales and performances.

Choosing a partner is a critical factor for success in international strategic alliances, although criteria for partner selection vary between developed and transitional markets. This study aims to develop effective methods to assist enterprise to measure the firms' operation efficiency, find out the candidate priority under several different inputs and outputs, and forecast the values of those variables in the future. The methodologies are constructed by the concepts of Data Envelopment Analysis (DEA) and grey model (GM). Realistic data in four consecutive years (2009–2012) a total of 20 companies of the Electronic Manufacturing Service (EMS) industry that went public are completely collected. This paper tries to help target company—DMU1—to find the right alliance partners. By our proposed approach, the results show the priority in the recent years. The research study is hopefully of interest to managers who are in manufacturing industry in general and EMS enterprises in particular.

Vietnam has been highly appreciated as the most rapid development in regional tourist arrivals in SouthEast Asia. Many researchers, economists, and tourism business leaders have widely recognized the opportunities for Vietnam to become one of the most interesting destinations for global visitors. Therefore, it is particularly important for the tourism business leaders to get as many as precious updating information about tourists' remarks and thoughts for national well-preparation. Consequently, they can provide the best tourist service and enhance traveler satisfaction and that is also expected to increase efficiency and sales performance in terms of flexibility of time. The current empirical study focuses on identifying the key factors of service quality that have the most influence on tourist satisfaction by doing a survey to examine the level of satisfaction that international travelers gave to tourist spots in Hanoi, Vietnam. In order to satisfy the research objectives, the data are carefully collected and analyzed in detail by apply SPSS software with a multi-statistical process, including descriptive analysis, the analysis of exploratory factor, reliability, correlation, and regression model. Study results pointed out that among service quality factors, only three factors: Responsiveness-Reliability, Tangible, and Hygiene can cause a positive effect on tourist satisfaction. The author suggests that these findings may offer alternatives to improving the service quality of Hanoi tourism in particular and Vietnam tourism in general, for the competence and development of national tourism industry toward Asian countries.