Child protection practitioners and decision-making tools : observations and reflections from the front line

Decision-making tools, particularly risk-assessment tools, have been implemented by governments around the world, perhaps most notably in the field of child protection, though little attention has been paid to how practitioners use them. This article presents the findings from ethnographic research that explored how child protection practitioners in the Department of Child Safety, Queensland, Australia, used four Structured Decision Making tools developed by the Children's Research Centre in Wisconsin in their daily practice in the intake and investigation stages of a case. The findings that the tools were not being used as intended by their designers and, in fact, tended to undermine the development of expertise by child protection workers has profound implications for the future development of technological approaches to child protection and, more broadly, human services practice.

The effects of mechanical stress, environment and cathodic protection on the degradation and failure of coatings: An overview

Organic coatings have been used in conjunction with cathodic protection as the most economical method of corrosion protection by the oil and gas pipeline industry. In a bid to prolong the life of the pipelines, the degradation and failure of pipeline coatings under the effects of major influencing factors including mechanical stress, the environmental corrosivity and cathodic protection have been extensively investigated over the past decades. This paper provides an overview of recent research for understanding coating degradation under the effect of these factors, either individually or in combination. Electrochemical impedance spectroscopy remains the primary and the most commonly used technique of studying the degradation of organic coatings, although there have been attempts to use other techniques such as electrochemical polarization (both dynamic and static), electrochemical noise, Scanning Kelvin Probe, Fourier Transform Infrared Spectroscopy, Differential Scanning Calorimetry and Dynamic Mechanical Analyser. Major knowledge and technological gaps in the investigation of the combined effects of mechanical stress, environmental corrosivity and cathodic protection on coating degradation have been identified.