Marking parties for marking written assessments: A spontaneous community of practice.

In programmes of assessment with both high and low-stakes assessments, the inclusion of open-ended long answer questions in the high-stakes examination can contribute to driving deeper learning among students. However, in larger institutions, this would generate a seemingly insurmountable marking workload. In this study, we use a focused ethnographic approach to explore how such a marking endeavour can be tackled efficiently and pragmatically.

Inclusive education: The case for early identification and early intervention in assistive technology.

This paper starts by presenting the argument that inclusive education for learners with disabilities is often not possible without their access to fit-for-purpose assistive technology (AT), as the barriers to their education are often environmental.The paper will argue that, if assistive technology is an enabler for learning, then the processes by which children with disabilities are identified as users of assistive technology must take place as early as possible in the lifecycle. Mechanisms associated with Early Identification and Early Intervention (EI/EI) must be outfitted with all necessary resources for identifying and addressing the unique assistive technology needs of each individual child, but also have a prospective view of the use of the assistive technology in order to ensure school-age children start benefiting from assistive technology as early as possible.

Quantitative rate constants for the reaction of dyes and alkenes with alpha-hydroxyalkyl radicals, measured by laser flash photolysis.

Rate constants are measured for the addition reactions of 1-hydroxy-1-cyclohexyl (1HC) and 2-hydroxy-2-propyl (2HP) radicals to 7 alkenes and for the 1-electron reduction of 16 organic dyes by 1HC, and a subset of 5 of these dyes by 2HP. This was done to determine to what extent the many reported rate constants for reactions of 2-hydroxy-2-propyl radicals (2HP) may be used to predict the rates of reactions of other tertiary alpha-hydroxy-alkyl radicals, and to give a better understanding of the factors that control dye reduction. The dyes were chosen to represent a wide range of dye types (azo, anthraquinone, phthalocyanine, triaryl-methane, indocyanine and azine dyes).

Quantitative rate constants for radical reactions in the nanopores of cotton.

The understanding of radical reactions in nanostructured materials is important for developing new synthetic procedures and controlling degradation reactions. To develop this area, an easy method for measuring quantitative rate constants of some radical reactions in nanostructures is required. A simple method for measuring the rate constant of dye bleaching, kdye, by organic radicals in such materials is introduced, involving the measurement of microsecond bleaching kinetics by diffuse reflectance spectroscopy, following laser flash creation of the radicals.