The present study employed constructs from self-determination theory, social-identity theory, and the theory of planned behaviour to examine the combined effects that social identity and perceived autonomy support exerted on attitudes, intentions and health behaviour. A prospective design was employed measuring constructs from the theory of planned behaviour, group norms, group identification, ...

RFID tags will exist pervasively in our daily life in a near future. In RFID systems, privacy and security are of critical importance to avoid potential tracking abuse and privacy violations. Many protocols have been proposed to address privacy and security issues in RFID systems. Physical attacks receive few considerations from the current research. Through physically attacks, attackers can ge...

In this paper a mobile ID solution called My Identity App (MIA) is shown that combines traditional printed ID documents and electronic identities (eID) into a platform independent smartphone app embedded in an ID ecosystem. MIA aims for transparent identification and authentication in the physical and digital world while security, privacy, data protection, usability and user trust are at equili...

T here is no need to remember complex combinations of random numbers and characters. From now on, you are the password: your fingerprint, face, iris, gait or odour—any of your potentially unique attributes—can theoretically be used to identify you. This is the idea behind biometrics, which was once confined to the realm of spy movies and high-security facilities, but is now increasingly common ...

Three studies demonstrated that collective identity and identity threat shape representations of the physical world. In Study 1, New York Yankees fans estimated Fenway Park, the stadium of a threatening out-group (but not Camden Yards, the stadium of a neutral out-group) to be closer than did non-Yankees fans. In Study 2, the authors manipulated identity threat among people affiliated (or not) ...

The current study aimed to test the validity of an extended theory of planned behavior model (TPB; Ajzen, 1991), incorporating additional self and social influences, for predicting adolescent moderate-to-vigorous physical activity. Participants (N = 423) completed an initial questionnaire that assessed the standard TPB constructs of attitude, subjective norm, and perceived behavioral control, a...

This paper presents a first attempt to describe the relevance and importance of a Digital Learner Identity in the context of supporting lifelong learners. A Digital Learner Identity is an augmented user model that captures the traces lifelong learners leave in their digital, social and physical worlds, all combined in a single model. In this paper we start looking at the notion of offline ident...

In this chapter we explore the phenomenon of "girls fighting like guys" by listening to adolescent girls' justification for physical fighting with other girls. We argue that physical girlfighting is a particular kind of gendered performance--a performance of identity that expresses, at least in part, an answer to the question, "Who am I?"--that both perpetuates and challenges the usual notions ...

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OBJECTIVE Cultural factors are associated with health behaviors among American Indians. Accordingly, the objective of our study was to investigate whether cultural identity, defined as the primary language spoken at home, is associated with: 1) higher total physical activity levels, and 2) levels of leisure-time physical activity recommended for health benefits in a diverse sample of American I...