Design Features for the Social Web: The Architecture of Deme

We characterize the "social Web" and argue for several features that are desirable for users of socially oriented web applications. We describe the architecture of Deme, a web content management system (WCMS) and extensible framework, and show how it implements these desired features. We then compare Deme on our desiderata with other web technologies: traditional HTML, previous open source WCMSs (illustrated by Drupal), commercial Web 2.0 applications, and open-source, object-oriented web application frameworks. The analysis suggests that a WCMS can be well suited to building social websites if it makes more of the features of object-oriented programming, such as polymorphism, and class inheritance, available to non-programmers in an accessible vocabulary.Comment: Appeared in Luis Olsina, Oscar Pastor, Daniel Schwabe, Gustavo Rossi, and Marco Winckler (Editors), Proceedings of the 8th International Workshop on Web-Oriented Software Technologies (IWWOST 2009), CEUR Workshop Proceedings, Volume 493, August 2009, pp. 40-51; 12 pages, 2 figures, 1 tabl

PATERNAL ADHD, PARENTING, AND CHILD CONDUCT PROBLEMS: POTENTIAL MECHANISMS.

Parental factors, specifically psychopathology and parenting, robustly predict negative developmental outcomes among children with attention-deficit/hyperactivity disorder (ADHD). Indeed, emergent findings have linked maternal ADHD symptoms both with sub-optimal parenting and child conduct problems within families of children with ADHD. Despite considerable research supporting the important and unique contributions of fathers to their children's development, the role of fathers within families of children with ADHD has seldom been examined. In particular, little research has been conducted with regard to paternal ADHD symptoms and parenting, despite clear evidence for an association between maternal ADHD symptoms and maladaptive parenting. The current study examined psychopathology and parenting behavior among a sample of fathers (N=102) and their 5-12 year-old children with previously-diagnosed ADHD. Results indicated that paternal antisocial personality disorder (ASPD) symptoms (rather than ADHD symptoms) were robustly associated with child conduct problems, and paternal negative parenting mediated this relationship. Future research using prospective longitudinal designs should examine multiple forms of psychopathology and parenting behavior among fathers of children with ADHD in order to identify potential risk factors and associated mechanisms for the development of child conduct problems

Associations Between Paternal Psychopathology and Conduct Problems in Children with ADHD

Parental psychopathology has consistently emerged as an important risk factor for negative developmental outcomes in children with ADHD; yet, this literature has focused almost exclusively on mothers. The few studies that do focus on fathers have identified significant associations between paternal psychopathology and child conduct problems (CP). This study sought to replicate these findings among families of children with ADHD and to extend prior research by considering paternal involvement as a potential moderator. Direct relationships between paternal psychopathology and child CP were not found. However, paternal involvement moderated the relationship between paternal ADHD and child CP. For involved fathers, these two variables were positively correlated, which suggests that children whose fathers are both involved and display psychopathology may be at higher risk for concurrent CP

Inclusive pedagogy and knowledge in special education: addressing the tension

There has been an increasing focus in policy and practice on adopting inclusive pedagogy as a way of reconceptualising how schools work with children with special educational needs (SEN). The paper considers the split between knowledge and pedagogy inherent in some dominant strains of inclusive pedagogy. Drawing on the ‘knowledge turn’ in curriculum studies, we argue that although an analytical distinction between knowledge and pedagogy may be useful, too strong a delineation between the two fails to best serve the needs of children with special needs. Specific implications for teacher education in relation to SEN in England are considered

Nucleation of quark matter in protoneutron star matter

The phase transition from hadronic to quark matter may take place already during the early post-bounce stage of core collapse supernovae when matter is still hot and lepton rich. If the phase transition is of first order and exhibits a barrier, the formation of the new phase occurs via the nucleation of droplets. We investigate the thermal nucleation of a quark phase in supernova matter and calculate its rate for a wide range of physical parameters. We show that the formation of the first droplet of a quark phase might be very fast and therefore the phase transition to quark matter could play an important role in the mechanism and dynamics of supernova explosions.Comment: v3: fits version published in Physical Review