In modern payment systems, the user is often the weakest link in the security chain. To identify the key vulnerabilities associated with the user behavior and to implement a number of measures useful to protect the payment systems against these kinds of vulnerability is a real hard task. To this aim, we designed an architecture useful to divide the users of a payment system into pre-defined cla...

Since nowadays mobile phone messages are flourishing, the application of electronic coupon (e-coupon) will become a trend for mobile users. E-coupon for mobile commerce can provide mobility for users and distribution flexibility for issuers. However, most of the existed e-coupon schemes usually apply public-key cryptosystem to achieve the security, which will not be implemented in mobile device...

A system for e-voting was developed and tested in fourteen field studies. This enabled us to investigate the actual experiences of users when deploying this type of e-governance technology. In this paper we describe the set-up of the field studies, and discuss the main results. Are users satisfied with e-voting technology and its usability? Do different user groups differ in their uses of the t...

Recently WOM has become popular with the penetration of Internet and the popularity of social media, and attracted the attention of IS researchers. This study develops a model to explore the factors motivating e-service users’WOM behavior from the expectation confirmation paradigm together with trust. The research model was empirical tested with 543 valid responses from the online travel servic...

BACKGROUND E-cigarettes have grown popular. The most common pattern is dual use with conventional cigarettes. Dual use has raised concerns that it might delay quitting of cigarette smoking. This study examined the relationship between long-term use of e-cigarettes and smoking cessation in a 2-year period. METHODS A nationally representative sample of 2028 US smokers were surveyed in 2012 and ...

BACKGROUND Not much is currently understood regarding the contexts of cigarette and e-cigarette use among dual users. Proper application of e-cigarettes to smoking cessation or tobacco harm reduction would require an understanding of when and why dual users use cigarettes versus e-cigarettes. This study sought to elucidate the contexts of cigarette versus e-cigarette use among dual users. MET...

BACKGROUND There has been little research examining whether e-cigarette use increases the risk of cigarette initiation among adolescents in the transition to adulthood when the sale of cigarettes becomes legal. METHODS The Children's Health Study is a prospectively followed cohort in Southern California. Data on e-cigarette use were collected in 11th and 12th grade (mean age = 17.4); follow-u...

the study was designed to investigate the comparative analysis of agricultural credit users and non-users among cassava farmers in ohafia local government area of abia state. a sample of 50 credit users and 50 non-credit user cassava-based farmers were selected by multistage random sampling technique. data were collected with a well structured questionnaire administered to a total of 100 random...

The proliferation of e-services (e.g. e-commerce, e-health, e-government) within the emerging digital Identity Management Systems make Internet an undeniable convenient and powerful tool for users. However in this environment, users are required to manage several digital identities and a great number of personal data. As such, simplification of users’ involvement is highly needed while increasi...