Critical factors affecting consumer acceptance of online health communication: an application of service quality models

The paper examines critical factors affecting consumer behavioral intentions in accepting online health communication through social networking sites. Unlike recent research under this topic, the paper assimilates some components of service quality dimensions and consumer behavior theories. The paper employs factor analysis and structural equation modelling analysis with latent variables to identify critical factors from the survey data collected from Korean consumers. The results of the study identifies three major constructs: consumer needs for health information, the perceived value of tangible attributes of health information providers, and the perceived value of intangible attributes of health information providers. The results show that consumer needs for health information and the tangible and intangible attributes of health information providers should be considered as important antecedents of accepting online health communication through social networking sites. The findings suggest that the success of online health communication via social networking sites largely depends on the tangible and intangible attributes of health information providers

Simulation of surfactant based enhanced oil recovery

Surfactant flooding is an important process for enhanced oil recovery. A substantial amount of remaining oil resides in reservoirs especially in carbonate oil reservoirs that have low primary and water-flood oil recovery. Most of the surfactant flooding studies to date has been performed in water-wet sandstone reservoirs. As a result, the effects of heterogeneity and wettability of carbonates on surfactant flooding efficiency are fairly unknown. The purpose of this simulation study was to determine the effects of wettability and wettability alteration on Dodecylbenzene Sulfonate surfactant flooding in carbonate reservoirs. This study used the multi-phase, multi-component, surfactant flooding simulator called UTCHEM. The base case results showed that additional 27.8% of oil recovered after water-flooding process. Sensitivity analyses of key parameters such as chemical slug size and concentrations, salinity, reservoir heterogeneity and surfactant adsorption were performed to optimize a surfactant design for a mixed-wet dolomite reservoir. The study was then extended to simulating wettability alteration during the field scale surfactant flood. The results of modeling the wettability alteration showed that significant differences in injectivity and oil recovery are caused by the changes in the mobility of the injected fluid. As the use of surfactant flooding spreads into the reservoir especially oil-wet and mixed-wet reservoirs, the importance of surfactant-based wettability alteration will become important

Long-run and short-run dynamics relationships between exchange rate fluctuations and foreign direct investment flows in China

This research explores the short-run and long-run dynamic relationships between exchange rate fluctuations and foreign direct investment (FDI) inflows in China. Monthly time series data from the National Bureau of Statistics of the People’s Republic of China are analyzed by employing co-integration tests, vector error correction models, Wald tests and impulse responses. The empirical results indicate that a change in exchange rates negatively affects FDI inflows in the long run while there exists no evidence of shortrun dynamics and reciprocal feedback between exchange rate fluctuations and FDI inflows. Furthermore, a structural break occurs during the 2007-2009 Asian financial crisis shock to FDI inflows in China

Corporate marketing strategy using social media: a case study of the Ritz-Carlton Seoul

With the increasing trend of popularity of websites and social networking sites, it is quite evident that companies need to take cautionary measures in protecting the reputations with respect to company and brands. In this process, every company should indulge in enhancing their company and brand image through websites and social networking sites that fortify the bonding nature among them. The always-on nature of websites and social networking sites has contributed to their phenomenal marketing power and altered the balance of power between consumers and firms. Websites and social networks are used by hundreds of millions of people to communicate about a huge range of topics, including personal interests, activities, social events and even public issues. The paper explores a case study of the Ritz- Carlton hotel for their marketing strategy and organizational use of their website and social media in communicating with their customers. Even for the normal luxury traveler who would not have previously used the Internet to research a hotel or make a reservation, ritzcarlton.com is making it possible for them to do so in a sense of the luxury and typical Ritz-Carlton style. It seems to be a staple of the company for years to come

Multiuser Diversity for Secrecy Communications Using Opportunistic Jammer Selection -- Secure DoF and Jammer Scaling Law

In this paper, we propose opportunistic jammer selection in a wireless security system for increasing the secure degrees of freedom (DoF) between a transmitter and a legitimate receiver (say, Alice and Bob). There is a jammer group consisting of $S$ jammers among which Bob selects $K$ jammers. The selected jammers transmit independent and identically distributed Gaussian signals to hinder the eavesdropper (Eve). Since the channels of Bob and Eve are independent, we can select the jammers whose jamming channels are aligned at Bob, but not at Eve. As a result, Eve cannot obtain any DoF unless it has more than $KN_j$ receive antennas, where $N_j$ is the number of jammer's transmit antenna each, and hence $KN_j$ can be regarded as defensible dimensions against Eve. For the jamming signal alignment at Bob, we propose two opportunistic jammer selection schemes and find the scaling law of the required number of jammers for target secure DoF by a geometrical interpretation of the received signals.Comment: Accepted with minor revisions, IEEE Trans. on Signal Processin

Spillover effects of FDI inflows on the banking industry in China.

The study examines the magnitude of economic spillover and the impact of foreign direct investment (FDI) inflow on the efficiency of the bank management in China This study examines direct and indirect spillover in the short-run and their economic spillover in the long-run. Unit root tests, cointegration tests, vector error correction models, and Wald tests are employed in the empirical analysis using monthly time series data from January 2002 to September 2013 retrieved from the Bank of China database. In testing long-run economic spillover, this study finds that FDI inflows have a significant economic spillover, but the spillover is likely to be negative. In testing short-run economic spillover, this research finds that FDI inflows have a significant positive direct effect on the efficiency of the bank management in Chain

Increasing and decreasing entanglement characteristics for continuous variables by a local photon subtraction

We investigate how the entanglement characteristics of a non-Gaussian entangled state are increased or decreased by a local photon subtraction operation. The non-Gaussian entangled state is generated by injecting a single-mode non-Gaussian state and a vacuum state into a 50:50 beam splitter. We consider a photon-added coherent state and an odd coherent state as a single-mode non-Gaussian state. In the regime of small amplitude, we show that the performance of quantum teleportation and the second-order Einstein-Podolsky- Rosen-type correlation can both be enhanced, whereas the degree of entanglement decreases, for the output state when a local photon subtraction operation is applied to the non-Gaussian entangled state. The counterintuitive effect is more prominent in the limit of nearly zero amplitude.Comment: Published version, 7 pages, 3 figure

Economic and environment impacts of mass tourism on regional tourism destinations: a case study of Ten New 'Bali' in Indonesia

In response to the increasing demands of tourism destinations, the Ministry of Tourism and Creative Economy under the mandate from the Indonesian President in 2016 has initiated a mega project called “Ten New Bali”. The areas of destination planned to be developed are: Borobudur Temple in West Java, Mandalika in Lombok Island, Labuan Bajo in Flores Island East Nusa Tenggara, Bromo-TenggerSemeru in East Java, the Thousand Islands in North Jakarta, Toba Lake in North Sumatra, Wakatobi in Southeast Sulawesi, Tanjung Lesung in West Java, Morotai in North of Halmahera in maluku Islands and Tanjung Kelayang in Belitung Sumatra. This initiation is a summer breeze for some reasons knowing that Indonesia is opening so many alternative channels for economic development toward tourism. However, the concept of “Ten New Bali”, if it is referred to the actual condition of what Bali is currently suffering from at the moment, is a wake-up call for all participating social, economy and environmental investigators to fully navigate the projects from being staked out from a pull tourism destination’s perspective. The study is intended to examine and elaborate strategic answers toward the impacts on the enforcement of Indonesia’ tourism establishment particularly the aftermath likelihoods from the initiation of “Ten New Bali”, starting with the issue of locals’ economic growth and leakages within their participation in tourism development, and environmental quality’s degradation