The authors used an event-contingent daily recording strategy, the Rochester Interaction Record (RIR), to examine the motivational dynamics of interpersonal relations. Using hierarchical linear modeling, the authors demonstrated that social interactions were more pleasant when participants felt autonomous, competent, and related. Autonomy, competence, and relatedness consistently predicted inte...

Recent rhetoric surrounding the contemporary aid relationship between donors and African states is couched in terms of a high level consensus between western and African political leaderships, a central pillar of which is adherence to liberal principles of governance and economic management. The paper argues that an analysis of the nature of this consensus and its prospects requires that we nee...

This study examined whether self-esteem mediated the association between peer relationships and internalizing problems (i.e., depression and social anxiety). A total of 7290 (3756 girls) adolescents (ages 13–18 years) completed self-report measures of peer relationships, including direct and indirect victimization, social isolation, friendship attachment (alienation and trust) and friendship qu...

We investigated adolescent prosocial relations by examining social networks based on the question "Who helps you (e.g., with homework, with repairing a flat [bicycle] tire, or when you are feeling down?)." The effects of individual characteristics (academic achievement, symptoms of depressive mood, and peer status) on receiving help and giving help were examined, and we investigated the contrib...

Since the appearance of Napster in 1999, peer-to-peer networks which don't distinguish clients with servers, have become one of the fastest growing and most popular Internet applications. Content location is a key function, but it presents a very difficult and challenging problem for large-scale peer-to-peer systems. A number of different methods are currently in use. However, new mechanism whi...

This study tested a developmental cascade model of peer rejection, social information processing (SIP), and aggression using data from 585 children assessed at 12 time points from kindergarten through Grade 3. Peer rejection had direct effects on subsequent SIP problems and aggression. SIP had direct effects on subsequent peer rejection and aggression. Aggression had direct effects on subsequen...

The significance of ego development and object relations for adaptation and adjustment in middle childhood was examined in a study of 92 nine- to twelve-year-old children. Subjects completed the Sentence Completion Test (SCT) and the Blatt Object Relations Scale (BORS) in individual sessions. BORS ratings were factor analyzed and a predominant factor of parental nurturance emerged. This factor ...

In order to evaluate the performance and estimate the resource usage of peer-to-peer backup systems, it is important to analyze the time they spend in storing, retrieving and keeping the redundancy of the stored files. The analysis of such systems is difficult due to the random behavior of the peers and the variations of network conditions. Simulations provide a unique means for reproducing suc...

Interest in distributed reasoning is gaining momentum due to the emergence of the Semantic Web. In this work, we address the problem of meaningfully answering queries to distributed propositional reasoners which may be mutually inconsistent. We define a peer-to-peer query answering framework in which peers may be prioritized. Our formal framework includes distributed entailment relations for bo...