Bioecological theory suggests that adolescents' health is a result of selection and socialization processes occurring between adolescents and their microsettings. This study examines the association between adolescents' friends and health using a social network model and data from the National Longitudinal Study of Adolescent Health (N = 1,896, mean age = 15.97 years). Results indicated evidenc...

Two studies addressed whether children consider speakers' knowledge states when establishing initial word-referent links. In Study 1, forty-eight 3- and 4-year-olds were taught two novel words by a speaker who expressed either knowledge or ignorance about the words' referents. Children showed better word learning when the speaker was knowledgeable. In Study 2, forty-eight 3- and 4-year-olds wer...

While rats given neonatal injections of high doses of Friend virus grew up as apparently normal rats (Friend virus-tolerant rats), most rats given low neonatal doses of Friend virus died from the development of the runting syndrome (runted rats). At the transplantation of Friend virus-induced tumor (WFT-3), all tolerant rats died from the growth of the WFT-3 cells, while some of the rats that h...

While rats given neonatal injections of high doses of Friend virus grew up as apparently normal rats (Friend virus-tolerant rats), most rats given low neonatal doses of Friend virus died from the development of the runting syndrome (runted rats). At the transplantation of Friend virus-induced tumor (WFT-3), all tolerant rats died from the growth of the WFT-3 cells, while some of the rats that h...

Friend lists group contacts in a social networking site that are to be treated equally in some respect. We have developed a new approach for recommending friend lists, which can then be manually edited and merged by the user to create the final lists. Our approach finds both large networks of friends and smaller friend groups within this network by merging virtual friend cliques. We have identi...

A number of researches have been focused on improving the productivity of knowledge workers. Effective communication is determinative, and one important problem has been to find the right person for collaboration. The Semantic Web efforts improve it by better wide-range knowledge management. Through extending the FoaF (Friend of a Friend) vocabulary, knowledge workers can share their machine-re...

In this paper we give an overview of the Foafing the Music system. The system uses the Friend of a Friend (FOAF) and RDF Site Summary (RSS) vocabularies for recommending music to a user, depending on the user’s musical tastes and listening habits. Music information (new album releases, podcast sessions, audio from MP3 blogs, related artists’ news and upcoming gigs) is gathered from thousands of...

Previous literature has demonstrated the important role that trust plays in developing and maintaining well-functioning societies. However, if we are to learn how to increase levels of trust in society, we must first understand why people choose to trust others. One potential answer to this is that people view trust as normative: there is a social norm for trusting that imposes punishment for n...

We consider social peer-to-peer data management systems (PDMS), where each peer maintains both semantic mappings between its schema and some acquaintances, and social links with peer friends. In this context, reformulating a query from a peer’s schema into other peer’s schemas is a hard problem, as it may generate as many rewritings as the set of mappings from that peer to the outside and trans...

Ad hoc-like friend-to-friend (F2F) networks are an important part of the third generation peer-to-peer (P2P) networks. F2F networks offer their users more anonymity and privacy, but make user reputation tracking very hard. In this paper, I present a group management based protocol for F2F networks and evaluate its performance in solving balance between privacy and reputation in these networks.