Forming a Dimension of Digital Human Rights: Research Agenda for the Right to be Forgotten

The right to be forgotten has emerged so as to build legal foundations for data subjects to be relieved from misappropriation of personal data on the Internet. However, studies of information systems (IS) on the right to be forgotten and related issues are rare as agreements of the right are diverse according to legal and cultural backgrounds. IS researchers should conduct both explorative and exploitative research in order to build a firm knowledge base for a better understanding of the right to be forgotten from the IS perspective. Doing so would help academia, legislators, and governments, and individuals to understand effects of the right on social, technological and psychological point of view. By suggesting a research agenda to investigate the right to be forgotten, this study sheds light on IS research direction of the right to be forgotten

Too Crowded to Disclose! Exploring the Relationship Between Online Crowdedness and Self-Disclosure

Nowadays, people communicate with many others online. Of the online sites, product review pages have become an important communication medium on which consumers share information about a product. Drawing upon this trend, we examined the factors that affect reviewers’ self-disclosure behavior. Prior studies have found that privacy behaviors such as self-disclosure are affected by diverse contextual factors. In this study, we propose that online crowdedness is an important contextual factor for self-disclosure behavior. Using review data from the largest online apparel rental site in the U.S., we empirically explored the relationship between online crowdedness and self-disclosure behavior. The result shows that online crowdedness can discourage self-disclosure behavior

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Department of Energy Engineering (Battery Science and Technology)Aqueous rechargeable sodium-ion batteries so-called 'seawater batteries' have considered as one of the alternative batteries instead of LIBs due to abundance of Na resources in seawater. The seawater batteries consist of Na metal anode, organic and solid electrolytes, a seawater as a catholyte, and a carbon felt current collector. Among them, the NASICON (Na Super Ioninc CONductor) solid electrolyte plays a significant role to separate sodium metal and seawater physically and to transfer Na+ ions from the seawater side to the anodes selectively. In this regards, the NASICON should be physically and chemically stable inside seawater, especially during the electrochemical reactions. Due to the use of seawater as a catholyte, the NASICON electrolyte always contacts with seawater. However, the NASICON is known to be unstable in a aqueous media that becomes another significant concern for seawater batteries. Furthermore, the lasting interaction with seawater may occur the side reactions, such as cation exchange of hydronium (H3O+) and Na+ ions and the minor phase dissolution even without the battery operation. To utilize the NASICON as a proper solid electrolyte, I have deeply investigated the physical interaction with distilled water and seawater based on the immersion tests for detection of minor phase dissolution, such as silicates and phosphates. Based on the theoretical electrochemical reactions, the discharge process has a reaction potential of 3.11V vs. Na+/Na. However, the current technology offers only the discharge potential of 2.7V. To enhance the discharge potential, I have demonstrated the simple coating method on the carbon felt, resulting in the increase of the reaction potential to 2.83V, which is 31% higher improvement compared to the previous method. The redox reaction of seawater generates the by-products of HCl and NaOH according to the possible thermodynamics. For the viewpoint of the solid electrolyte, the concentration of HCl or NaOH can differ on the surface of the NASICON, which might degrade the stability of the NASICON during charging and discharging, especially at higher current densities. For this reason, I have investigated the stability of the NASICONs with different current densities and pHs of seawater to examine the degradation factors. The in-situ liquid TEM analysis is one of the best techniques to understand the chemical degradation of materials in liquid environment. Here, I have made Si wafer based membrane chips to observe the NASICON-contained liquid cells for the comparison of the degradation in D.I and seawater. For the design of the membrane, I have developed photomasks to resolve the undercutting problems and liquid cell zigs for alignment of liquid cell assembly and leakage problems. The simple designed photomasks and containers give the new insights for easy fabrication and achievement of Si based liquid cells.clos

An Empirical Analysis of Repurchase Behavior in Mobile Commerce According to Different Mobile Channels

Smartphone-based m-commerce enables customers to purchase products in different channels. In the complicated mobile shopping channels, retaining existing customers becomes important. In light of these developments, this study focuses on crucial factors of repurchase behavior of consumers based on the recency, frequency, and monetary value (RFM) model and analyzes how their effects differ among mobile channels and the online channel. The mobile channels are divided into three channels: mobile application ( app ), mobile browser, and mobile shopping portal channels. Real purchase data for three million orders from online shopping sites is used for our empirical analysis. The results show that all RFM variables significantly affect repurchase behavior. Our findings imply that mobile app users are more likely to repurchase than users in other channels. It is also found that the frequency variable is more important for mobile channel users, while the recency variable is more important for online channel users