Human settlers transported chickens (Gallus gallus domesticus) to most East Polynesian archipelagos between AD 1000 and 1300; however, it has long been assumed that New Zealand was an exception. Despite the fact that chicken bones have been recovered from localities of early archaeological middens in New Zealand, their age and genetic relationships have never been critically assessed. Here, we ...

In cellular communications there are two primary communication links between the cell’s central basestation and the users, the uplink (or reverse link) and the downlink (or forward link). The former refers to the flow of information from the users to the basestation, and is a problem which has been and is still today the subject of much debate. The downlink, however, receives less attention, si...

Past research has shown that adolescent peer groups make a significant contribution to shaping behavior but less is known about the role of peer groups in adolescent dating relationships. This longitudinal study examined the contribution of aggressive peer group norms on relationship quality and dating violence among dating adolescents. At the beginning of the school year (T1) and 6 months late...

OBJECTIVE Little is known about the factors that contribute to adolescents' perceptions of the acceptability of dating violence, particularly among girls who have witnessed intimate partner violence (IPV). Drawing on relevant theory, the current study tests a path model linking frequency of witnessing IPV in childhood, sexist beliefs, and automatic relationship-to-harm associations to acceptabi...

In South Africa, dating violence is known to be widespread among adolescents, and is therefore a major public health issue because of its association with sexual risk behaviours. The objective of the study was to examine the relationship between dating violence and self-efficacy for delayed sex among school-going adolescents in Cape Town, South Africa. The study is based on analyses of data fro...

Social networks play an important role in Web 2.0. For many users establishing contacts and staying in touch in the virtual world is more than just a spare time filler. In social networks like Facebook they provide much information about themselves in user profiles. Also for online dating the focus is on establishing new contacts. In general, three types of dating sites can be distinguished: mo...

Dating violence among college students represents a prevalent and serious problem. An abundance of research has examined risk and protective factors for dating violence, although only recently has research begun to focus on risk and protective factors that could be amenable to change in intervention programs. One potential risk factor for dating violence may be experiential avoidance. Using the...

We examined relations among perceived parenting practices (support and psychological control), attachment dimensions for romantic relationships (anxiety and avoidance) and exploration of the dating identity among actively dating adolescents in two high school aged samples. In the all female sample of Study 1 (n = 653) and the gender balanced sample of Study 2 (n = 1003), parenting practices con...

The incidence of violence in dating relationships has a significant impact on young people, including decreased mental and physical health. This review is the first to provide a quantitative synthesis of empirical evaluations of schoolbased programs implemented in middle and high schools that sought to prevent or reduce incidents of dating violence. After a systematic search and screening proce...

| Code division multiplexing or multiple access techniques provide a method of isolating multiuser transmissions in a non-orthogonal fashion. The communication resources are shared dynamically between users. In networks with bursty traac having a large numbers of subscribers, each having very low duty cycles, non-orthogonal channeliza-tion enables active users to exploit the shared portion of s...