BACKGROUND Child screen viewing (SV) is positively associated with poor health indicators. Interventions addressing rule-based parenting practices may offer an effective means of limiting SV. This study examined associations between rule-based parenting practices (limit and collaborative rule setting) and SV in 6-8-year old children. METHODS An online survey of 735 mothers in 2011 assessed: t...

Abstract: The linear expansion, early-age compressive strength and setting times of the binary mixtures of gypsum and Portland cement clinkers of relatively low C3A-contents were investigated. For this reason, type 1, 2, and 5 of Portland cement-clinkers were selected and a number of binary mixtures were designed. At relatively lower percentages of gypsum (about 5%), the early strength behavior...

We study private expansion and revision operators in a multi-agent setting. More precisely, we study the changes induced by a new piece of information made available to only one agent in a KD45n model. We point out a translation of AGM expansion and revision postulates to this setting, and define specific expansion and revision operators.

It is arguable that the instinct for survival in animal species has evolved due to the evolutionary elimination of those individuals who did not have enough inclination nor desire to cluster in a team. Thus, the roots of ethical conduct in its many facets in today’s world, may be sought in this very primeval concern for the society that enabled communities, rather than individuals, to survive i...

Die-pattern technique is presently the most prevalent in use as a general method of constructing inlays, and crown and bridge work. A wax pattern is prepared on a stone die and taken out to be invested and cast. This method and process of taking wax patterns out of the die occasionally causes deformation or damage to patterns due to handling or the properties of the wax itself, and this affects...