OBJECTIVE To measure the reliability of data collected by the Thames cancer registry and to identify factors in the registration process affecting reliability. DESIGN A retrospective study of data from the registry, including death certificate only registrations, and hospital case notes on cases of colorectal cancer diagnosed in 1983 or 1988. SETTING Four districts in South Thames region. ...

The micro-time context of group processes (such as argumentation) can affect a group’s micro-creativity (new ideas). Eighty high school students worked in groups of four on an algebra problem. Groups with higher mathematics grades showed greater microcreativity, and both were linked to better problem solving outcomes. Dynamic multilevel analyses of the groups’ 2951 turns of conversation statist...

It is very common to examine reliability of triage scales using (weighted) kappa statistics. The point is that weighted kappa has grossly underestimated disagreements by one category and put more emphasis on extreme category disagreements; therefore, low prevalence of critically-ill and non-urgent patients has excluded the effect of extreme categories disagreement from calculated kappa coeffici...

2 3 We propose a generative model of page selection by users, and the disagreements that occur on those pages, in Wiki-like environments, applicable to many other forms of collective intelligence. We learn groupings of page content (topics) which preserve user disagreements while explaining page preferences. Within each grouping, users have preferences over points of view (POV), which determine...

This paper provides an overview of wind energy projects in Mexico. It is based on the understanding that rise these responds to international policies and not exclusive country; However, his case presents important particularities because many farms are located indigenous territories where they have provoked socio-environmental conflicts driven by a feeling opposition resistance. Therefore, thi...

This study explored the association between different types of brief disagreements and subsequent levels of expressed psychological uncertainty, a fundamental cognitive aspect of complex problem solving. We examined 11 hours (11 861 utterances) of conversations in expert science teams, sampled across the first 90 days of the Mars Exploration Rover mission. Utterances were independently coded fo...